Zifukwa zogwiritsira ntchito ma valve a Maval Abwino ndi Nkhani Zoyenera Kuganizira

M'mapaipi a Piperine, kusankha koyenera kwa mavalsive ndi imodzi mwazinthu zotsimikizika kuti mukwaniritse zomwe zagwiritsidwa ntchito. If the electric valve used is not selected properly, it will not only affect the use, but also bring adverse consequences or serious losses, therefore, the correct selection of electric valves in the pipeline engineering design.

Malo ogwirira ntchito a valavu yamagetsi

In addition to paying attention to the pipeline parameters, special attention should be paid to the environmental conditions of its operation, because the electric device in the electric valve is an electromechanical equipment, and its working condition is greatly affected by its working environment. Nthawi zambiri, malo ogwirira ntchito a valavu yamagetsi ndi motere:

1. Kukhazikitsa kwa Indoor kapena kugwiritsa ntchito zakunja ndi njira zotchinga;

2. Kukhazikitsa panja poyera, ndi mphepo, mchenga, mvula ndi mame, kuwala kwa dzuwa ndi kukokoloka kwina;

3. Ili ndi mpweya woyaka kapena wophulika kapena dothi;

4. Malo otentha, otentha, owuma;

5. Kutentha kwapakatikati sing'anga kuli kokwera ngati 480 ° C kapena pamwambapa;

6. Kutentha kozungulira kuli pansi -20 c;

7. Ndikosavuta kusenda kapena kumizidwa m'madzi;

8. Mitundu yokhala ndi zida zojambula (zomera za nyukiliya za nyukiliya ndi zida zoyeserera);

9. Chilengedwe cha sitima kapena padoko (mchere utsi, nkhungu, ndi chinyezi);

10. Nthawi zina zophulika;

11. Nthawi zokonda kumoto;

For the electric valves in the above-mentioned environments, the structure, materials and protective measures of the electric devices are different. Chifukwa chake, chipangizo chofananira chamagetsi chiyenera kusankhidwa malinga ndi malo omwe atchulidwa pamwambapa.

Zofunikira zamagetsimavuvu

Malinga ndi zowongolera zamagetsi, chifukwa valavu yamagetsi, ntchito yowongolera imamalizidwa ndi chipangizo chamagetsi. Cholinga chogwiritsa ntchito ma valvel a ma valvel a magetsi ndikutha kuwongolera kapena kuwongolera kwamakompyuta pa ulalo wotseguka, wotseka ndi kusintha ndi kusintha kwa mavavu. Zipangizo zamakono zamakono sizingogwiritsidwa ntchito kupulumutsa anthu. Due to the large differences in the function and quality of products from different manufacturers, the selection of electric devices and the selection of valves are equally important to the project.

Kuwongolera zamagetsi zamagetsimavuvu

Due to the continuous improvement of the requirements of industrial automation, on the one hand, the use of electric valves is increasing, and on the other hand, the control requirements of electric valves are getting higher and more complex. Chifukwa chake, mapangidwe a mavamu amagetsi malinga ndi chiwongolero chamagetsi chimasinthidwanso nthawi zonse. With the progress of science and technology and the popularization and application of computers, new and diverse electrical control methods will continue to appear. Pangano lonse la magetsivalavu, chidwi chiyenera kulipidwa ku kusankha kwa mawonekedwe a valavu yamagetsi. Mwachitsanzo, malinga ndi zofunikira za polojekitiyi, kapena kugwiritsa ntchito njira imodzi yowongolera, kapena njira imodzi yowongolera, kaya kuti mulumikizane ndi zida zina, kuwongolera pulogalamu kapena kugwiritsa ntchito njira yowongolera makompyuta, ndi zina. Chitsanzo cha wopanga zamagetsi amangopereka mfundo zamagetsi zamagetsi, kotero Dipatimenti Yogwiritsa Ntchito Iyenera Kupanga Kuwulula kwa Upangiri ndi Wopanga Magetsi ndikufotokozerani zomwe mukufuna. Kuphatikiza apo, posankha valavu yamagetsi, muyenera kuganizira kuti mugule olamulira ena owonjezera. Chifukwa chachikulu, wowongolera ayenera kugulidwa payokha. Nthawi zambiri, mukamagwiritsa ntchito mphamvu imodzi, ndikofunikira kugula wolamulira, chifukwa ndizosavuta komanso zotsika mtengo kugula kwa wowongolera kuposa momwe amapangira. Masewera oyendetsera zamagetsi akamatha kukwaniritsa zofunikira za kupanga, wopanga iyenera kupangidwira kuti asinthane kapena kukonzanso.

Chida chamagetsi ndi chipangizo chomwe chimazindikira mapulogalamu a valavu, chowongolera chokha komanso kuyendetsa kwake kutali *, ndipo njira yake yoyenda imatha kulamulidwa ndi kuchuluka kwa stroke, torquo kapena tulo. Popeza machitidwe ogwiritsira ntchito ndi kugwiritsa ntchito valve a valve amadalira mtundu wa valavu, ndipo mawonekedwe a valavu yopanga valavu ndizofunikira kuti muchepetse (torque yolimba kwambiri kuposa chiwongolero). Mwambiri, maziko a kusankha koyenera wa Valve Valve ndi motere:

There are two main machine structures for operating the thrust valve electric device: one is not equipped with a thrust disc and directly outputs torque; Wina ndi kusinthitsa mbale yopota, ndipo chimbudzi chotulutsa chimasinthidwa kukhala kutulutsa kwa tsinde m'matumbo m'mbale.

Chiwerengero cha zojambulajambula za shaft za chipangizo cha Valve chimagwirizana ndi gawo la vale,valavutsinde).

If the large stem diameter allowed by the electric device cannot pass through the stem of the equipped valve, it cannot be assembled into an electric valve. Therefore, the inner diameter of the hollow output shaft of the actuator must be larger than the outer diameter of the stem of the open rod valve. Pa valavu yakuda mu valavu pang'ono yotchinga ndi ma valavu angapo, ngakhale vuto la valavu tsinde silikuganiziridwanso, kuti litha kugwira ntchito moyenera msonkhano.

Ngati liwiro lotseguka ndi kutseka kwa valavu yotulutsa itatulutsa ikuthamanga, ndikosavuta kutulutsa nyundo yamadzi. Chifukwa chake, liwiro lotseguka loyenera komanso lotseka liyenera kusankhidwa malinga ndi zomwe amagwiritsa ntchito mosiyanasiyana.

Alonda a valavu ali ndi zofuna zawo zapadera, mwachitsanzo, ayenera kutanthauzira torque kapena mphamvu ya axial. Kawikawirivalavuochita sewero amagwiritsa ntchito njira zochepetsetsa. Kukula kwa chipangizo chamagetsi chikatsimikiziridwa, chiwongolero chake chowongolera chimatsimikizikanso. Nthawi zambiri amathamangira nthawi yokonzedweratu, mota sadzadzaza. Komabe, ngati zotsatila zotsatirazi zikuchitika, zingayambitse kufalitsa: choyamba, mphamvu ya mphamvu yamagetsi ndiyotsika, ndipo torque yofunikira siyipezeka, kotero kuti motayo imasiya kuzungulira; Wachiwiri ndikusintha makina ochepetsa thupi kuti apange wamkulu kuposa wowala, zomwe zimapangitsa kuti zikhale zopitilira muyeso komanso kuyimitsa galimoto; Wachitatu ndi kugwiritsa ntchito kosatheka, ndipo kudziunjikira kutentha komwe kumachitika kumapitilira kutentha kwagalimoto; Chachinayi, madera ochepetsa thupi amalephera pazifukwa zina, zomwe zimapangitsa chiwongole chachikulu kwambiri; Lachisanu, kutentha kozungulira kumakhala kwakukulu kwambiri, komwe kumachepetsa kutentha kwa mota.

In the past, the method of protecting the motor was to use fuses, overcurrent relays, thermal relays, thermostats, etc., but these methods have their own advantages and disadvantages. Palibe njira yodalirika yotetezera zida zosinthika monga zida zamagetsi. Chifukwa chake, mitundu yosiyanasiyana iyenera kukhazikitsidwa, yomwe imatha kufotokozedwa mwachidule mu mitundu iwiri: imodzi ndikuweruza kuwonjezeka kapena kuchepa kwa pota; Lachiwiri ndikuweruza kuti muwomberere mota. Mulimonsemo, njira iliyonse imawerengera nthawi yomwe mwapatsidwa mwamantha a moto.

Generally, the basic protection method of overload is: overload protection for continuous operation or jog operation of the motor, using a thermostat; Kuti muteteze nyama yotakasuka, kuyanjana kwamomwe kumalandilidwa; Kwa ngozi zazifupi, mafose kapena chinsinsi chopitilira muyeso chimagwiritsidwa ntchito.

Okhazikika Okhala OkhazikikaMavalidwe a Gulugufe,pachipata, Chongani valavuZambiri, mutha kulumikizana nafe ndi whatsapp kapena imelo.