Nzira yekutonga kusashanda kwevacuum kweDewar

Kazhinji, nekutadza kwevacuum, iyo Dewar icharatidza chiitiko chechando pamutumbi webhodhoro kana kuwedzera kwakanyanya kwekumanikidza mucylinder. Zvisinei, kune bhodhoro idzva kana cylinder yegesi isina kushandiswa kwenguva yakareba, nokuti kutonhora kwetangi yaro yemukati yakakwirira, kudzvinyirira kunokwira nokukurumidza kana kuzadza nemvura, chiitiko ichi chinofanira kuva chakajairika.
　　
Kuwedzera kudzvinyirira kukwira kunogona kushandiswa seimwe yenheyo yekutonga kusakwana kwevacuum yemudziyo wekumanikidza. Iyo shell ye silinda yegesi yakashongedzerwa ine vacuum plug. Kana iyo vacuum ye cylinder yegasi ikakundikana, iyo vacuum plug inosunungura (pasi pezvakajairwa mamiriro, iyo vacuum plug inomanikidzwa nemhepo yemhepo). Kazhinji, vacuum plug yakafukidzwa nepurasitiki inodzivirira cap. Usavhura chivharo chekudzivirira kana vacuum plug. Kana iyo vacuum yeDewar ikaonekwa kuti haina basa, ndapota itumire kune yekumanikidza ngarava kugadzirisa fekitori kuti igadziriswe.

Mushure mezvose, kukundikana kwevacuum kweDewar chinhu chisingawanzooneki. Kazhinji, vacuum ye silinda yegasi inogona kugara kwemakore akati wandei, kana kutopfuura hupenyu hwesevhisi yehumburumbira yegasi. Munguva iyi, vacuum ye cylinder yegesi iri kuderera zvishoma nezvishoma (pamwero unononoka). ye. Iyo inonzi "nyoro" vacuum inoratidzwa pane yakamira Dewar inogona kutongwa nekukurumidza kuwedzera kwekumanikidza.
　　
Kana iyo gasi cylinder vacuum plug isiri isina kujairika, asi iyo vacuum inofungidzirwa kuti haina basa, inofanirwa kutongwa nekutarisa kudzvanywa.
　　
Kana kudzvanywa kweiyo silinda yekuyedza kunowedzera, iwe unofanirwa kuterera kune:
1. Chekutanga pane zvese, isu tinofanirwa kunzwisisa tembiricha yemvura yechiteshi chekuzadza mvura. Iyo tembiricha yemvura yechiteshi chekuzadza mvura haigone kuve yakaderera pane -135 madhigirii.
　　
2. Mvura yemvura yeDewar flask inofanira kuyerwa pa 2/3 kana 1/2.3. Deredza kudzvinyirira kwegasi cylinder kusvika 0.6MPa, vhara mavharuvhu ose, tarisa hafu yeawa imwe neimwe, chengetedza kukwira kwemhepo, uye tsvaga kwemaawa mana. Kana dzvinyiriro ichikwira ne 0.1mpa paawa, inogona kutongwa sekudonha kwevacuum. Udza vashandi vapedza kutengesa kuti vatonge panzvimbo.
　　
4. Mvura yemvura ye cylinder yegesi inenge hafu, uye haigoni kuzara, kana zvisina kudaro ichakanganisa kururama kwekutonga.
　　
5. Mushure mekutanga mutongo, unogona kuudza vashandi vebasa remufekitari kuti vaende kunzvimbo inotonga.
Iko kumanikidzwa kwejacket ye cylinder yegesi ine vacuum kukundikana kuchawedzera pamwero weinenge 0.007MPa\/min. Uku kushanduka kwekumanikidza kuri pachena; iyo humburumbira goko, kunyanya nzvimbo dzakadzika dzepombi uye tsigiro iri pedyo tembiricha pane zvimwe zvikamu Tembiricha yakadzikira, uye kuti goko rakarohwa nechando here kana kuti rakakora zvinoenderana nekupisa uye hunyoro hwenzvimbo yakatenderedza.

Kuvepo kwerudzi urwu rwekudzoreredza hakugone kushandiswa sechiratidzo chakavimbika chekutonga kuvepo kana kusavapo kweiyo vacuum degree yecylinder yegesi, uye bvunzo yehumburumbira yekumanikidza kuwedzera mwero ndiyo yakavimbika uye inobatsira nzira yekutonga.
　　
Bhodhoro reDewar rakatotadza kutsvaira rinofanira kuburitswa zvakare kuburikidza nemudziyo wakakosha. Kuvhiya uku kunogona kuitwa pamotokari kana mushure mekunge bhodhoro regesi raburitswa.