{"id":4873,"date":"2021-12-01T14:01:30","date_gmt":"2021-12-01T14:01:30","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4873"},"modified":"2026-04-28T09:54:38","modified_gmt":"2026-04-28T09:54:38","slug":"how-do-chemical-plants-prevent-freezing-and-condensation-in-winter","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/how-do-chemical-plants-prevent-freezing-and-condensation-in-winter\/","title":{"rendered":"Hogyan akad\u00e1lyozz\u00e1k meg a vegyi \u00fczemek a fagy\u00e1st \u00e9s a kondenz\u00e1ci\u00f3t t\u00e9len?"},"content":{"rendered":"\n

Quick answer:<\/strong> A practical chemical-sourcing decision starts with the intended use first, then verifies purity, compatibility, storage, and process behavior before scale-up.<\/p>\n\n\n\n

T\u00e9li fagy\u00e1s- \u00e9s p\u00e1ralecsap\u00f3d\u00e1sg\u00e1tl\u00f3 munka a vegyi \u00fczem<\/strong><\/a> a biztons\u00e1gos termel\u00e9s biztos\u00edt\u00e1s\u00e1nak f\u0151 eszk\u00f6ze. A fagy\u00e1s- \u00e9s kondenz\u00e1ci\u00f3s balesetek megel\u0151z\u00e9se \u00e9rdek\u00e9ben a fagy\u00e1s- \u00e9s kondenz\u00e1ci\u00f3 elleni munk\u00e1t a berendez\u00e9s jellemz\u0151inek megfelel\u0151en szint\u00e9n a \"el\u0151sz\u00f6r a megel\u0151z\u00e9s, majd a megsz\u00fcntet\u00e9s\" elv\u00e9nek megfelel\u0151en kell elv\u00e9gezni. Er\u0151s\u00edtse meg a k\u00f6nnyen fagyhat\u00f3 \u00e9s k\u00f6nnyen megalvad\u00f3 t\u00e9telek gy\u0171jt\u00e9s\u00e9t, sz\u00e1ll\u00edt\u00e1s\u00e1t, haszn\u00e1lat\u00e1t \u00e9s kezel\u00e9s\u00e9t, tegyen el\u0151zetes \u00f3vint\u00e9zked\u00e9seket az alapvet\u0151 m\u00f3dszereknek megfelel\u0151en, v\u00e9gezzen gondos ellen\u0151rz\u00e9seket az el\u0151\u00edr\u00e1soknak megfelel\u0151en, \u00e9s \u00e9sszer\u0171en kezelje a fagy\u00e1si \u00e9s elt\u00f6m\u0151d\u00e9si probl\u00e9m\u00e1kat a biztons\u00e1gos termel\u00e9s biztos\u00edt\u00e1s\u00e1nak c\u00e9lj\u00e1nak el\u00e9r\u00e9se \u00e9rdek\u00e9ben.<\/p>\n\n\n\n

1) Fagy\u00e1ll\u00f3 m\u00f3dszer<\/strong><\/p>\n\n\n\n

Gyakori fagy\u00e1s- \u00e9s kondenz\u00e1ci\u00f3g\u00e1tl\u00f3 m\u00f3dszerek a k\u00f6vetkez\u0151kben vegyi \u00fczem<\/a> <\/strong>mag\u00e1ban foglalja az \u00fcr\u00edt\u00e9st, a h\u0151tart\u00e1st, a h\u0151k\u00f6vet\u00e9st \u00e9s a keringtet\u00e9st. T\u00e9len a fagy\u00e1s- \u00e9s kondenz\u00e1ci\u00f3g\u00e1tl\u00e1snak a berendez\u00e9sek \u00e9s a cs\u0151vezet\u00e9kek m\u0171k\u00f6d\u00e9si \u00e1llapot\u00e1n kell alapulnia, kombin\u00e1lva a kor\u00e1bbi \u00e9vek fagy\u00e1sg\u00e1tl\u00e1si probl\u00e9m\u00e1ival \u00e9s tapasztalataival, \u00e9s ezek k\u00f6z\u00fcl egyet kell elfogadni. Egy vagy t\u00f6bb m\u00f3dszer.<\/p>\n\n\n\n

  1. \u00dcr\u00edt\u00e9s. A fagy\u00e1ll\u00f3 \u00e9s kondenz\u00e1ci\u00f3g\u00e1tl\u00f3 m\u00f3dszerek ki\u00fcr\u00edt\u00e9se nagyj\u00e1b\u00f3l h\u00e1rom kateg\u00f3ri\u00e1ba sorolhat\u00f3:<\/li><\/ol>\n\n\n\n

    El\u0151sz\u00f6r is, a f\u00f6ld\u00f6n id\u0151szakosan \u00fczemel\u0151 vagy hossz\u00fa ideig nem haszn\u00e1lt berendez\u00e9seket \u00e9s cs\u0151vezet\u00e9keket a k\u00f6vetkez\u0151 l\u00e9p\u00e9sek szerint lehet ki\u00fcr\u00edteni:<\/p>\n\n\n\n

    (1) Z\u00e1rja le az adott szelepet, \u00e9s sz\u00fcks\u00e9g eset\u00e9n tegyen hozz\u00e1 egy vaklemezt a szelep bels\u0151 sziv\u00e1rg\u00e1s\u00e1nak megakad\u00e1lyoz\u00e1s\u00e1ra;<\/p>\n\n\n\n

    (2) Nyissa ki a nagypontos kipufog\u00f3szelepet \u00e9s a kispontos kipufog\u00f3szelepet a berendez\u00e9sben l\u00e9v\u0151 anyagok ki\u00fcr\u00edt\u00e9s\u00e9hez;<\/p>\n\n\n\n

    (3) Tiszt\u00edtsa ki \u00e9s cser\u00e9lje ki a marad\u00e9k anyagokat nitrog\u00e9nnel;<\/p>\n\n\n\n

    (4) Norm\u00e1l esetben nyissa ki az alacsonyponti leereszt\u0151szelepet, \u00e9s rendszeresen ellen\u0151rizze azt.<\/p>\n\n\n\n

    A m\u00e1sodik a f\u00f6ldalatti szelepes kutakban l\u00e9v\u0151 l\u00e9tes\u00edtm\u00e9nyek \u00e9s cs\u0151vezet\u00e9kek, f\u0151k\u00e9nt a h\u0151 n\u00e9lk\u00fcli t\u0171zolt\u00f3 l\u00e9tes\u00edtm\u00e9nyek (p\u00e9ld\u00e1ul v\u00edzmonitorok \u00e9s t\u0171zcsapok) v\u00edzelvezet\u00e9se. A szelepk\u00fatb\u00f3l a gy\u00f6k\u00e9rszelepet elz\u00e1rj\u00e1k, a szelep feletti vizet pedig a leereszt\u0151 szelepen kereszt\u00fcl leeresztik \u00e9s tiszt\u00e1n tartj\u00e1k. A szelep \u00e1ltal\u00e1ban nyitva van, \u00e9s a t\u0171zjelz\u0151 monitor feje lefel\u00e9 mutat.<\/p>\n\n\n\n

    A harmadik a berendez\u00e9sek, cs\u0151vezet\u00e9kek vagy t\u00f6ml\u0151k ideiglenes haszn\u00e1lata. Haszn\u00e1lat ut\u00e1n a cs\u00f6vekben l\u00e9v\u0151 k\u00f6zegeket id\u0151ben ki kell \u00fcr\u00edteni \u00e9s nitrog\u00e9nnel ki kell tiszt\u00edtani; ha a k\u00f6r\u00fclm\u00e9nyek lehet\u0151v\u00e9 teszik, a szigetel\u0151m\u0171helyben lehet elhelyezni \u0151ket.<\/p>\n\n\n\n

    1. Szigetel\u00e9s. A fagyv\u00e9delem szempontj\u00e1b\u00f3l a vegyi \u00fczemek h\u0151szigetel\u00e9se els\u0151sorban a k\u00f6vetkez\u0151 h\u00e1rom szempontot foglalja mag\u00e1ban:<\/li><\/ol>\n\n\n\n

      Az els\u0151 a h\u0151szigetel\u0151 gyapj\u00faval ell\u00e1tott berendez\u00e9sek, cs\u0151vezet\u00e9kek \u00e9s tartoz\u00e9kaik. A kor\u00e1bbi \u00e9vekben felmer\u00fclt probl\u00e9m\u00e1kat m\u00e9g a t\u00e9l el\u0151tt \u00f6ssze kell vonni. Ezt a munk\u00e1t gondosan meg kell vizsg\u00e1lni \u00e9s jav\u00edtani kell. K\u00fcl\u00f6n\u00f6s figyelmet kell ford\u00edtani azokra a berendez\u00e9sekre, amelyek nem rendelkeznek h\u0151vel, \u00e9s csak az anyag h\u0151m\u00e9rs\u00e9klet\u00e9t\u0151l f\u00fcggnek a fagy\u00e1s megakad\u00e1lyoz\u00e1sa \u00e9rdek\u00e9ben. A cs\u0151vezet\u00e9k v\u00e9g\u00e9nek, a vakv\u00e9gnek \u00e9s a helysz\u00edni nyom\u00e1sm\u00e9r\u0151nek a h\u0151konzerv\u00e1l\u00e1sa biztos\u00edtja a h\u0151konzerv\u00e1l\u00e1st.<\/p>\n\n\n\n

      A m\u00e1sodik, hogy a belt\u00e9ri helyis\u00e9geket, p\u00e9ld\u00e1ul a m\u0171helyeket l\u00e9gmentesen tartsuk, hogy melegen tartsuk \u0151ket. Ellen\u0151rizze, hogy a m\u0171helyek ajtajai, ablakai \u00e9s f\u00fcgg\u00f6nyei \u00e9pek-e, \u00e9s id\u0151ben helyezze be a f\u0171t\u00e9st a m\u0171helyekben.<\/p>\n\n\n\n

      A harmadik a f\u00f6ldalatti szelepes kutak lez\u00e1r\u00e1sa a meleg \u00e9rdek\u00e9ben. A szelepkutak eset\u00e9ben j\u00f3 el\u0151re t\u00f6m\u00edtse le \u0151ket m\u0171anyag ruh\u00e1val, \u00e9s sz\u00fcks\u00e9g eset\u00e9n tegyen h\u0151szigetel\u0151 int\u00e9zked\u00e9seket.<\/p>\n\n\n\n

      1. H\u0151k\u00f6vet\u00e9s. Ami a t\u00e9li fagymentes\u00edt\u00e9st illeti, a gyakori h\u0151k\u00f6vet\u00e9si k\u00f6zegek k\u00f6z\u00e9 tartozik a melegv\u00edz-, a g\u0151z- \u00e9s az elektromos h\u0151k\u00f6vet\u00e9s. A melegvizes nyomk\u00f6vet\u00e9s olyan k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt alkalmazhat\u00f3, ahol az \u00fczemi h\u0151m\u00e9rs\u00e9klet nem magas, vagy ahol nem lehet magas h\u0151m\u00e9rs\u00e9klet\u0171 nyomk\u00f6vet\u0151 k\u00f6zeget haszn\u00e1lni. A g\u0151zk\u00f6vet\u00e9st \u00e1ltal\u00e1ban olyan nyomk\u00f6vet\u00e9sre haszn\u00e1lj\u00e1k, ahol a cs\u0151ben l\u00e9v\u0151 k\u00f6zeg \u00fczemi h\u0151m\u00e9rs\u00e9klete 150 \u00b0C-n\u00e1l alacsonyabb.<\/li><\/ol>\n\n\n\n

        Az elektromos h\u0151k\u00f6vet\u00e9s nemcsak a g\u0151zk\u00f6vet\u00e9s k\u00fcl\u00f6nb\u00f6z\u0151 helyzeteire alkalmas, hanem a h\u0151\u00e9rz\u00e9keny k\u00f6zeg\u0171 cs\u0151vezet\u00e9kekhez is. Hat\u00e9konyan szab\u00e1lyozhatja a h\u0151m\u00e9rs\u00e9kletet \u00e9s megakad\u00e1lyozhatja a cs\u0151vezet\u00e9k t\u00falmeleged\u00e9s\u00e9t. Alkalmas olyan cs\u0151vezet\u00e9kek vagy berendez\u00e9sek sz\u00e1m\u00e1ra, amelyek sz\u00e9tsz\u00f3rtan vagy a g\u00e1zell\u00e1t\u00e1si pontt\u00f3l t\u00e1vol vannak, valamint szab\u00e1lytalan alak\u00fa berendez\u00e9sek sz\u00e1m\u00e1ra. H\u0151k\u00f6vet\u00e9s.<\/p>\n\n\n\n

        A h\u0151k\u00f6vet\u0151 k\u00f6zeg kiv\u00e1laszt\u00e1s\u00e1t \u00f6ssze kell kapcsolni az anyagtulajdons\u00e1gokkal, az indexk\u00f6vetelm\u00e9nyekkel, az \u00e9p\u00edt\u00e9si neh\u00e9zs\u00e9gekkel, az \u00fczemeltet\u00e9si k\u00f6lts\u00e9gekkel stb., \u00e9s az \u00e9p\u00edt\u00e9st az el\u0151\u00edr\u00e1soknak megfelel\u0151en kell elv\u00e9gezni az \u00faj probl\u00e9m\u00e1k elker\u00fcl\u00e9se \u00e9rdek\u00e9ben, mik\u00f6zben el kell \u00e9rni a fagy\u00e1s- \u00e9s kondenz\u00e1ci\u00f3g\u00e1tl\u00e1s c\u00e9lj\u00e1t.<\/p>\n\n\n\n

        1. Hurok. A ciklikus fagy\u00e1s- \u00e9s kondenz\u00e1ci\u00f3g\u00e1tl\u00f3 m\u00f3dszereket els\u0151sorban olyan berendez\u00e9sek \u00e9s cs\u0151vezet\u00e9kek eset\u00e9ben alkalmazz\u00e1k, amelyeket id\u0151szakosan \u00fczemeltetnek vagy hossz\u00fa ideig nem haszn\u00e1lnak, \u00e9s a fenti m\u00f3dszereket (\u00fcr\u00edt\u00e9s, h\u0151tart\u00e1s, h\u0151k\u00eds\u00e9r\u00e9s) nem haszn\u00e1lj\u00e1k fagy\u00e1sg\u00e1tl\u00e1sra, vagy a fenti m\u00f3dszerek nem felelnek meg a fagy\u00e1sg\u00e1tl\u00e1si k\u00f6vetelm\u00e9nyeknek. A m\u00f3dszer nagyj\u00e1b\u00f3l n\u00e9gyf\u00e9lek\u00e9ppen oszthat\u00f3:<\/li><\/ol>\n\n\n\n

          Az egyik a keringtet\u00e9s az\u00e1ltal, hogy az anyagot az \u00fczemel\u0151 berendez\u00e9s kimenet\u00e9r\u0151l a k\u00e9szenl\u00e9ti berendez\u00e9s bemenet\u00e9re juttatj\u00e1k vissza. Ezt a m\u00f3dszert gyakran haszn\u00e1lj\u00e1k a k\u00e9szenl\u00e9ti berendez\u00e9s fagy\u00e1ll\u00f3 \u00e9s kondenz\u00e1ci\u00f3g\u00e1tl\u00f3 berendez\u00e9s\u00e9hez, p\u00e9ld\u00e1ul az egyszelepes szelep cs\u0151vezet\u00e9k\u00e9nek megker\u00fcl\u00e9s\u00e9vel a szivatty\u00fa kimenet\u00e9n\u00e9l, vagy az egyszelepes szelep ors\u00f3j\u00e1n kereszt\u00fcl ny\u00edl\u00f3 lyuk megnyit\u00e1s\u00e1val.<\/p>\n\n\n\n

          A m\u00e1sodik a berendez\u00e9s bemeneti cs\u0151vezet\u00e9k \u00e9s a berendez\u00e9s kimeneti cs\u0151vezet\u00e9k\u00e9nek \u00e1thidal\u00e1sa. Ezt a m\u00f3dszert gyakran alkalmazz\u00e1k a deaktiv\u00e1lt h\u0151cser\u00e9l\u0151 bemeneti \u00e9s kimeneti cs\u0151vezet\u00e9kek befagy\u00e1s\u00e1nak megakad\u00e1lyoz\u00e1s\u00e1ra. A kisebb \u00e1tm\u00e9r\u0151j\u0171 cs\u0151vezet\u00e9keket a h\u0151cser\u00e9l\u0151 bemeneti szelepe el\u0151tt \u00e9s ut\u00e1n k\u00f6sse \u00f6ssze a be- \u00e9s kimeneti cs\u0151vezet\u00e9kek fenntart\u00e1sa \u00e9rdek\u00e9ben. A cs\u0151vezet\u00e9k k\u00f6zege keringtetve van.<\/p>\n\n\n\n

          A harmadik az, hogy a norm\u00e1l \u00fczemm\u00f3dnak megfelel\u0151en kis mennyis\u00e9get keringet, \u00e9s \u00e1ltal\u00e1ban megpr\u00f3b\u00e1lja a k\u00e9szenl\u00e9ti berendez\u00e9s kimeneti szelep\u00e9t a lehet\u0151 legnagyobb m\u00e9rt\u00e9kben bez\u00e1rni, hogy cs\u00f6kkentse a k\u00f6zeg kering\u00e9s\u00e9nek mennyis\u00e9g\u00e9t \u00e9s megfeleljen a fagy\u00e1ll\u00f3 k\u00f6vetelm\u00e9nyeinek.<\/p>\n\n\n\n

          Negyedszer, kis mennyis\u00e9g\u0171 k\u00f6zeg folyamatosan vagy id\u0151szakosan \u00fcr\u00fcl. Ez a m\u00f3dszer f\u0151k\u00e9nt a cs\u0151vezet\u00e9k v\u00e9g\u00e9n l\u00e9v\u0151, nem l\u00e9tes\u00edthet\u0151 fagy\u00e1sg\u00e1tl\u00f3kra, p\u00e9ld\u00e1ul t\u00f6ml\u0151\u00e1llom\u00e1sokra, t\u00e1rol\u00f3tart\u00e1lyok v\u00edzelvezet\u0151 cs\u0151vezet\u00e9keire \u00e9s szelepeire, g\u0151zvezet\u00e9kek alacsony ponton l\u00e9v\u0151 leereszt\u0151 szelepeire, szemmos\u00f3kra stb. vonatkozik.<\/p>\n\n\n\n

          2) Fagy\u00e1ll\u00f3 ellen\u0151rz\u00e9s<\/strong><\/p>\n\n\n\n

          A fagyv\u00e9delmi ellen\u0151rz\u00e9s a t\u00e9li fagyv\u00e9delmi munk\u00e1k rendk\u00edv\u00fcl fontos r\u00e9sze. A rendszeres fagyv\u00e9delmi ellen\u0151rz\u00e9sekkel azonnal felfedezhet\u0151k \u00e9s kezelhet\u0151k a fagyv\u00e9delmi folyamat sor\u00e1n felmer\u00fcl\u0151 probl\u00e9m\u00e1k, \u00edgy hat\u00e9konyan elker\u00fclhet\u0151 a fagy\u00e1si probl\u00e9ma tov\u00e1bbi terjed\u00e9se. A fagyv\u00e9delmi ellen\u0151rz\u00e9s els\u0151sorban a fagyv\u00e9delmi \u00e9s alvad\u00e1sg\u00e1tl\u00f3 munka hat\u00e1s\u00e1nak ellen\u0151rz\u00e9s\u00e9re, a mulaszt\u00e1sok ellen\u0151rz\u00e9s\u00e9re, valamint a fagyv\u00e9delmi \u00e9s alvad\u00e1sg\u00e1tl\u00f3 munka tov\u00e1bbi jav\u00edt\u00e1s\u00e1ra szolg\u00e1l. Az ellen\u0151rz\u00e9s f\u0151 tartalma \u00e9s m\u00f3dszerei a k\u00f6vetkez\u0151k:<\/p>\n\n\n\n

          1. Rendszeresen ellen\u0151rizze a g\u0151zelvezet\u0151 cs\u0151vezet\u00e9k g\u0151zcsapd\u00e1j\u00e1nak leereszt\u00e9si \u00e1llapot\u00e1t. Ha a lefoly\u00e1s rendellenesnek bizonyul, id\u0151ben v\u00e9gezze el a vizsg\u00e1latot \u00e9s a kezel\u00e9st. Ha a lefoly\u00e1s \u00e1llapota nem ellen\u0151rizhet\u0151 k\u00f6zvetlen\u00fcl (p\u00e9ld\u00e1ul a lefoly\u00f3-visszav\u00e9teli \u00e1llom\u00e1sra koncentr\u00e1lva), haszn\u00e1ljon h\u0151m\u00e9rs\u00e9kletm\u00e9r\u0151 pisztolyt, vagy \u00e9rintse meg k\u00e9zzel a csapda szeleptest\u00e9t. (Az \u00e9rz\u00e9kel\u0151ny\u00edl\u00e1sokat a h\u0151tart\u00f3s\u00edt\u00e1s sor\u00e1n fenn kell tartani). \u00c1ltal\u00e1ban az ellen\u0151rz\u00e9s megk\u00f6veteli, hogy a h\u0151m\u00e9rs\u00e9kletnek 30 \u2103 felett kell lennie, vagy norm\u00e1lis, hogy forr\u00f3nak \u00e9rzi mag\u00e1t. N\u00e9ha az \u00e9rint\u00e9s melegs\u00e9ge nem felt\u00e9tlen\u00fcl er\u0151s\u00edti meg, hogy a lefoly\u00e1s norm\u00e1lis, k\u00fcl\u00f6n\u00f6sen abban a helyzetben, amikor a lefoly\u00f3 \u00fajrahasznos\u00edt\u00f3 \u00e1llom\u00e1sra koncentr\u00e1l\u00f3dik. A k\u00f6zeli norm\u00e1l lefoly\u00f3vezet\u00e9k h\u0151t vezet, ami gyakran f\u00e9lrevezeti az ellen\u0151rz\u00e9si \u00edt\u00e9leteket.<\/li>
          2. A melegv\u00edz nyomk\u00f6vet\u00e9shez ellen\u0151rizze a v\u00edz\u00e1raml\u00e1st egy v\u00edz\u00e1raml\u00e1s-jelz\u0151vel, vagy haszn\u00e1lja a h\u0151m\u00e9rs\u00e9kletm\u00e9r\u0151 pisztolyt vagy a kez\u00e9t, hogy meg\u00e9rintse az elektromos nyomk\u00f6vet\u0151 k\u00e1bel fenntartott ellen\u0151rz\u00e9si poz\u00edci\u00f3j\u00e1t, hogy ellen\u0151rizze, hogy az elektromos nyomk\u00f6vet\u0151 k\u00e1bel h\u0151m\u00e9rs\u00e9klete norm\u00e1lis-e; amikor a nyomk\u00f6vet\u0151 melegv\u00edzvezet\u00e9k \u00fajrahasznos\u00edt\u00e1sa , A tapasztalaton is alapulnia kell, hogy elker\u00fclje a tartoz\u00e9kok norm\u00e1l melegv\u00edzvezet\u00e9k\u00e9nek h\u0151vezet\u00e9s\u00e9b\u0151l ered\u0151 interferenci\u00e1t, ami befoly\u00e1solja az ellen\u0151rz\u00e9si \u00edt\u00e9letet.<\/li>
          3. A h\u0151m\u00e9rs\u00e9klet-jelz\u00e9ssel ell\u00e1tott elektromos f\u0171t\u00e9snek nemcsak a h\u0151m\u00e9rs\u00e9klet-jelz\u00e9si \u00e9rt\u00e9ket kell rendszeresen ellen\u0151riznie, hanem egy h\u0151m\u00e9rs\u00e9kletm\u00e9r\u0151 pisztolyt vagy k\u00e9zzel kell meg\u00e9rintenie az elektromos f\u0171t\u0151k\u00e1belt az ellen\u0151rz\u00e9si poz\u00edci\u00f3 fenntart\u00e1s\u00e1hoz, hogy megakad\u00e1lyozza a h\u0151m\u00e9rs\u00e9klet-jelz\u00e9s pontatlans\u00e1g\u00e1t, \u00e9s biztos\u00edtsa, hogy az elektromos f\u0171t\u0151k\u00e1bel h\u0151m\u00e9rs\u00e9klete norm\u00e1lis legyen. Az elektromos f\u0171t\u00e9snek h\u0151m\u00e9rs\u00e9kletjelz\u00e9s n\u00e9lk\u00fcl kell \u00e9rz\u00e9kelnie a h\u0151m\u00e9rs\u00e9kletet.<\/li>
          4. A l\u00e9gmentes m\u0171helyeket fel kell szerelni h\u0151m\u00e9r\u0151kkel, hogy rendszeresen ellen\u0151rizz\u00e9k az ajt\u00f3k \u00e9s ablakok t\u00f6m\u00edt\u00e9s\u00e9t \u00e9s a f\u0171t\u00e9si h\u0151m\u00e9rs\u00e9kletet, \u00e9s a belt\u00e9ri f\u0171t\u00e9s mennyis\u00e9g\u00e9t a belt\u00e9ri h\u0151m\u00e9rs\u00e9kletnek megfelel\u0151en \u00e1ll\u00edts\u00e1k be; ellen\u0151rizz\u00e9k a szeleph\u00e1zak szigetel\u00e9s\u00e9t \u00e9s t\u00f6m\u00edt\u00e9s\u00e9t, \u00e9s sz\u00fcks\u00e9g eset\u00e9n figyelj\u00e9k a bels\u0151 h\u0151m\u00e9rs\u00e9kletet.<\/li>
          5. Rendszeresen ellen\u0151rizze a ki\u00fcr\u00edtett berendez\u00e9st \u00e9s a cs\u0151vezet\u00e9k alacsony pontj\u00e1t anyagki\u00e1raml\u00e1s \u00e9s fagy\u00e1s szempontj\u00e1b\u00f3l, vagy egy cs\u0151kulccsal kopogtassa meg a cs\u0151vezet\u00e9ket, hogy meg\u00edt\u00e9lhesse. Ha fagy\u00e1st tal\u00e1l, id\u0151ben ellen\u0151rizze az anyag forr\u00e1s\u00e1t, \u00e9s v\u00e9gezze el a megfelel\u0151 kezel\u00e9st.<\/li>
          6. Rendszeresen ellen\u0151rizze a berendez\u00e9sek \u00e9s a cs\u0151vezet\u00e9kek fagy\u00e1ll\u00f3 cikluskeresztez\u0151d\u00e9seit. Ha van v\u00edz\u00e1raml\u00e1sjelz\u0151 vagy l\u00e1t\u00f3\u00fcveg, figyelje meg, hogy a jelz\u00e9s norm\u00e1lis-e. Ha nincs v\u00edz\u00e1raml\u00e1sjelz\u0151 vagy l\u00e1t\u00f3\u00fcveg, h\u0151m\u00e9rs\u00e9kletm\u00e9r\u0151 pisztollyal vagy k\u00e9zzel \u00e9rintse meg a berendez\u00e9s test\u00e9t vagy a kapcsol\u00f3d\u00f3 fagy\u00e1ll\u00f3 folyad\u00e9kkeresztvonalat Ha neh\u00e9z a h\u0151m\u00e9rs\u00e9klet alapj\u00e1n meg\u00edt\u00e9lni, a hallgat\u00f3 p\u00e1lca is haszn\u00e1lhat\u00f3 a berendez\u00e9s vagy a cs\u0151vezet\u00e9k anyagainak \u00e1raml\u00e1s\u00e1nak meg\u00edt\u00e9l\u00e9s\u00e9re. Olyan anyagok eset\u00e9ben, amelyek kis mennyis\u00e9g\u0171 k\u00fcls\u0151 kis\u00fcl\u00e9si ciklus fagy\u00e1ll\u00f3 folyad\u00e9kot vesznek fel, rendszeresen ellen\u0151rizze, hogy a k\u00fcls\u0151 kis\u00fcl\u00e9si mennyis\u00e9g norm\u00e1lis-e.<\/li>
          7. A m\u0171szer h\u0151k\u00f6vet\u00e9se, rendszeresen ellen\u0151rizze a m\u0171szer h\u0151k\u00f6vet\u0151 doboz\u00e1nak t\u00f6m\u00edt\u00e9si \u00e1llapot\u00e1t \u00e9s a benne l\u00e9v\u0151 h\u0151m\u00e9rs\u00e9kletet. Ugyanakkor ellen\u0151rizze a m\u0171szer h\u0151k\u00f6vet\u00e9s\u00e9t a h\u0151k\u00f6vet\u00e9si m\u00f3dszer szerint a fenti m\u00f3dszer szerint; emellett \u00f6sszehasonl\u00edthatja a helysz\u00edni \u00e9s a t\u00e1voli \u00e1tviteli m\u0171szereket, \u00e9s hivatkozhat a norm\u00e1l m\u0171szerre. A jelzett \u00e9rt\u00e9k alapj\u00e1n meg\u00edt\u00e9lhet\u0151, hogy a m\u00e9r\u0151 befagyott vagy elz\u00e1r\u00f3dott.<\/li>
          8. F\u00fcggetlen\u00fcl att\u00f3l, hogy hossz\u00fa t\u00e1v\u00fa haszn\u00e1latr\u00f3l vagy tartal\u00e9k mozg\u00f3 berendez\u00e9sr\u0151l van-e sz\u00f3, rendszeresen meg kell kurblizni, hogy el\u0151re megtudja, hogy a berendez\u00e9s fagyott vagy blokkolt-e; a nem kurblizhat\u00f3 berendez\u00e9sek (p\u00e9ld\u00e1ul konzervmotoros szivatty\u00fak), a fagy\u00e1ll\u00f3 ciklus ellen\u0151rz\u00e9s\u00e9n k\u00edv\u00fcl, amikor elindul A pontt\u00edpust el\u0151sz\u00f6r el kell v\u00e9gezni, \u00e9s a k\u00f6nnyen fagyhat\u00f3 r\u00e9szek (p\u00e9ld\u00e1ul a konzervmotoros szivatty\u00fa h\u00e1ts\u00f3 \u00fcl\u00e9se) h\u0151m\u00e9rs\u00e9klet\u00e9t meg kell m\u00e9rni, majd elind\u00edtani, miut\u00e1n norm\u00e1lis.<\/li>
          9. A g\u00e1z- (g\u0151z-) cs\u0151vezet\u00e9k v\u00e9g\u00e9n l\u00e9v\u0151 kipufog\u00f3szelep, az U alak\u00fa kanyarban l\u00e9v\u0151 alacsony ponton l\u00e9v\u0151 kipufog\u00f3szelep, a t\u00f6ml\u0151\u00e1llom\u00e1s szelepe stb. tartsa fenn a megfelel\u0151 ny\u00edl\u00e1st, vagy v\u00e9gezzen rendszeres v\u00edzelvezet\u00e9si ellen\u0151rz\u00e9seket, hogy elker\u00fclje az anyagok felhalmoz\u00f3d\u00e1s\u00e1t az alacsony pontokon \u00e9s a cs\u0151vezet\u00e9k befagy\u00e1s\u00e1t \u00e9s elt\u00f6m\u0151d\u00e9s\u00e9t.<\/li>
          10. Ami a m\u00e9r\u0151g\u00e1zt illeti, a f\u0151vezet\u00e9k v\u00e9g- \u00e9s m\u00e9lypontjainak rendszeres leereszt\u00e9se mellett a bels\u0151 v\u00edztartalmat is ellen\u0151rizni kell, hogy elker\u00fclhet\u0151 legyen a v\u00edz felhalmoz\u00f3d\u00e1sa a m\u00e9r\u0151ben, ami a m\u00e9r\u0151 be\u00e1ll\u00edt\u00e1s\u00e1nak meghib\u00e1sod\u00e1s\u00e1t okozza.<\/li>
          11. Rendszeresen ellen\u0151rizze a lefoly\u00f3 fogy\u00f3eszk\u00f6z\u00f6k kivezet\u00e9seit, hogy az alacsony ponton l\u00e9v\u0151 lefoly\u00f3szelepn\u00e9l nem folyik-e ki v\u00edz vagy fagy\u00e1si dugul\u00e1s, id\u0151ben kotrassa ki, ha a probl\u00e9m\u00e1t \u00e9szleli, \u00e9s er\u0151s\u00edtse meg, hogy a gy\u00f6k\u00e9rszelep szorosan z\u00e1rva van-e.<\/li>
          12. Rendszeresen ellen\u0151rizze a rendszer szell\u0151z\u0151- \u00e9s l\u00e9gz\u00e9skivezet\u0151 ny\u00edl\u00e1sait, p\u00e9ld\u00e1ul a tart\u00e1ly l\u00e9gz\u0151szelep\u00e9t \u00e9s l\u00e1ngz\u00e1r\u00f3j\u00e1t, a v\u00e9szhelyzeti szell\u0151z\u0151 nyom\u00e1scs\u00f6kkent\u0151 ny\u00edl\u00e1s\u00e1t, a l\u00e9gkompresszor szell\u0151z\u0151ny\u00edl\u00e1s\u00e1t \u00e9s a kaz\u00e1n biztons\u00e1gi szelep\u00e9nek szell\u0151z\u0151ny\u00edl\u00e1s\u00e1t, hogy a szell\u0151z\u0151ny\u00edl\u00e1s nem dugul el.<\/li>
          13. Rendszeresen ellen\u0151rizze, hogy a k\u00fclt\u00e9ri ventil\u00e1tor bel\u00e9p\u0151 v\u00e9d\u0151h\u00e1l\u00f3ja, a sz\u0171r\u0151h\u00e1l\u00f3, a motor \u00e9s m\u00e1s berendez\u00e9sek h\u0171t\u0151- \u00e9s h\u0151lead\u00f3 ventil\u00e1tor\u00e1nak bel\u00e9p\u0151 v\u00e9d\u0151h\u00e1l\u00f3ja nem fagyott-e el. Ha a berendez\u00e9s k\u00f6r\u00fcl vagy havas id\u0151ben g\u0151zkibocs\u00e1t\u00e1s van, akkor hajlamos az elt\u00f6m\u0151d\u00e9sre.<\/li>
          14. Rendszeresen ellen\u0151rizze, hogy a k\u00fclt\u00e9ri v\u00edzzel lez\u00e1rt tart\u00e1lyban vagy a folyad\u00e9kkal lez\u00e1rt tart\u00e1lyban l\u00e9v\u0151 folyad\u00e9k nem fagyott-e el, \u00e9s ha b\u00e1rmilyen rendelleness\u00e9get tal\u00e1l, id\u0151ben foglalkozzon vele, hogy biztos\u00edtsa a megfelel\u0151 m\u0171k\u00f6d\u00e9st.<\/li>
          15. Drasztikus h\u0151m\u00e9rs\u00e9klet-cs\u00f6kken\u00e9s eset\u00e9n vagy \u00e9jszaka meg kell er\u0151s\u00edteni az ellen\u0151rz\u00e9st, \u00e9s a h\u0151m\u00e9rs\u00e9kletnek megfelel\u0151en kell be\u00e1ll\u00edtani a k\u00eds\u00e9r\u0151 h\u0151t, az \u00fczem f\u0171t\u00e9si kapacit\u00e1s\u00e1t \u00e9s a fagyv\u00e9delmi ciklust.<\/li><\/ol>\n\n\n\n

            3) Fagyaszt\u00e1si dugul\u00e1s kezel\u00e9se<\/strong><\/p>\n\n\n\n

            A felolvaszt\u00e1s sor\u00e1n a k\u00fcl\u00f6nleges k\u00f6r\u00fclm\u00e9nyeknek megfelel\u0151en kell kezelni. \u00c1ltal\u00e1noss\u00e1gban elmondhat\u00f3, hogy a fagy\u00e1s \u00e1ltal elt\u00f6m\u0151d\u00f6tt berendez\u00e9sek, r\u00f6vid cs\u0151vezet\u00e9kek, m\u00e9r\u0151k, szelepek stb. eset\u00e9ben a g\u0151z k\u00f6zvetlen\u00fcl haszn\u00e1lhat\u00f3 az elt\u00f6m\u0151d\u00f6tt fel\u00fclet tiszt\u00edt\u00e1s\u00e1ra, hogy felold\u00f3djon, \u00e9s h\u0151tartal\u00e9kol\u00e1sra van sz\u00fcks\u00e9g. El\u0151re feloldja a h\u0151konzerv\u00e1l\u00e1st; ha a fagyott berendez\u00e9s nagy \u00e9s a cs\u0151vezet\u00e9k hosszabb, az ideiglenes h\u0151k\u00f6vet\u00e9s (p\u00e9ld\u00e1ul f\u00e9mt\u00f6ml\u0151 haszn\u00e1lata) \u00e9s a h\u0151konzerv\u00e1l\u00e1s m\u00f3dszer\u00e9t gyakran haszn\u00e1lj\u00e1k a lass\u00fa leolvaszt\u00e1shoz. Ha a fagyott berendez\u00e9sek, cs\u0151vezet\u00e9kek, m\u0171szerek \u00e9s szelepek k\u00f6nnyen elt\u00e1vol\u00edthat\u00f3k, akkor azokat el lehet t\u00e1vol\u00edtani \u00e9s egy magasabb h\u0151m\u00e9rs\u00e9klet\u0171 helyis\u00e9gbe lehet helyezni a megfelel\u0151 felolvaszt\u00e1s c\u00e9lj\u00e1b\u00f3l.<\/p>\n\n\n\n

            Annak \u00e9rdek\u00e9ben, hogy elker\u00fclj\u00fck a biztons\u00e1gi baleseteket, p\u00e9ld\u00e1ul a m\u00e9rgez\u0151 \u00e9s k\u00e1ros g\u00e1zok, folyad\u00e9kok kifr\u00f6ccsen\u00e9s\u00e9t, az emberek s\u00e9r\u00fcl\u00e9s\u00e9t vagy robban\u00e1sok okoz\u00e1s\u00e1t a fagyaszt\u00e1si dugul\u00e1s kezel\u00e9se sor\u00e1n, a k\u00f6vetkez\u0151 pontokra kell figyelni a folyamat sor\u00e1n:<\/p>\n\n\n\n

            El\u0151sz\u00f6r is ellen\u0151rizni kell, hogy a fagyasztott berendez\u00e9sek, cs\u0151vezet\u00e9kek \u00e9s szelepek nem repedtek-e meg vagy s\u00e9r\u00fcltek-e, valamint a szelepek kapcsol\u00e1si \u00e1llapot\u00e1t;<\/p>\n\n\n\n

            A m\u00e1sodik az \u00e9rintett rendszerek elk\u00fcl\u00f6n\u00edt\u00e9se a feldolgoz\u00e1s el\u0151tt;<\/p>\n\n\n\n

            A harmadik a lass\u00fa m\u0171k\u00f6d\u00e9s, az alacsony h\u0151m\u00e9rs\u00e9klet\u0171 g\u0151z lass\u00fa felold\u00e1sa, hogy a hirtelen felmeleged\u00e9s ne k\u00e1ros\u00edtsa a fagyott berendez\u00e9seket, cs\u0151vezet\u00e9keket \u00e9s szelepeket;<\/p>\n\n\n\n

            A negyedik az, hogy fontolja meg a m\u0171szerre \u00e9s a folyamat felt\u00e9teleire gyakorolt hat\u00e1st, miut\u00e1n a felolvaszt\u00e1si folyamatot hirtelen kikotort\u00e1k, \u00e9s el\u0151zetesen tegyen ellenint\u00e9zked\u00e9seket.<\/p>\n\n\n\n

            4) Egy\u00e9b k\u00e9rd\u00e9sek<\/strong><\/p>\n\n\n\n

            1. A kor\u00e1bbi \u00e9vek fagyv\u00e9delmi tapasztalatainak kombin\u00e1l\u00e1sa, a felmer\u00fcl\u0151 fagyv\u00e9delmi probl\u00e9m\u00e1k kezel\u00e9se, \u00e9s fagyv\u00e9delmi anyagok, p\u00e9ld\u00e1ul szigetel\u0151anyagok, csapd\u00e1k, aranyt\u00f6ml\u0151k, ideiglenes k\u00f6t\u00e9sek, fagyv\u00e9delmi keszty\u0171k stb. el\u0151k\u00e9sz\u00edt\u00e9se.<\/li>
            2. A t\u00e9l kezdete el\u0151tt tegyen \u00f3vint\u00e9zked\u00e9seket, alkalmazzon \u00e9s ellen\u0151rizzen k\u00fcl\u00f6nb\u00f6z\u0151 fagyv\u00e9delmi int\u00e9zked\u00e9seket, hogy elegend\u0151 id\u0151 \u00e1lljon rendelkez\u00e9sre a fagyv\u00e9delmi probl\u00e9m\u00e1k kezel\u00e9s\u00e9re, \u00e9s hogy elker\u00fclje a fagyv\u00e9delmi int\u00e9zked\u00e9sek meghib\u00e1sod\u00e1s\u00e1hoz vezet\u0151 hirtelen h\u0151m\u00e9rs\u00e9kletcs\u00f6kken\u00e9st.<\/li>
            3. \u00c1ll\u00edtsa be id\u0151ben a k\u00eds\u00e9r\u0151 h\u0151t, hogy ne csak a fagy\u00e1sg\u00e1tl\u00e1s ig\u00e9nyeit el\u00e9g\u00edtse ki, hanem elker\u00fclje a t\u00falzott h\u0151, a t\u00falzott folyamatjelz\u0151k \u00e9s a pontatlan m\u0171szerjelz\u00e9sek okozta pazarl\u00e1st is.<\/li>
            4. A h\u0151k\u00f6vet\u00e9ssel ell\u00e1tott anyagvezet\u00e9knek t\u00e1gul\u00e1si ir\u00e1ny\u00fanak kell lennie, hogy elker\u00fclhet\u0151 legyen a berendez\u00e9s vagy a cs\u0151vezet\u00e9knek az anyag meleged\u00e9se \u00e9s t\u00e1gul\u00e1sa \u00e1ltal okozott nyom\u00e1sa. Ha van nyom\u00e1sm\u00e9r\u0151, figyeljen a nyom\u00e1s ellen\u0151rz\u00e9s\u00e9re.<\/li>
            5. Az anyagvezet\u00e9k fut \u00e9s \u00e1ramlik, \u00e9s a h\u0151k\u00f6vet\u0151 cs\u0151vezet\u00e9k \u00e9s az \u00e1ltala k\u00f6vetett anyagvezet\u00e9k egym\u00e1st meleg\u00edti. Ha a cs\u0151vezet\u00e9kben l\u00e9v\u0151 anyag meg\u00e1ll az \u00e1raml\u00e1sban, ellen\u0151rizni kell, \u00e9s a h\u0151k\u00f6vet\u00e9st megfelel\u0151en n\u00f6velni kell.<\/li>
            6. A szemmos\u00f3 nyomk\u00f6vet\u0151 h\u0151m\u00e9rs\u00e9klete megfelel\u0151, \u00e9s el kell ker\u00fclni, hogy a nyomk\u00f6vet\u0151 h\u0151m\u00e9rs\u00e9klet t\u00fal magas legyen, hogy v\u00e9szhelyzetben \u00fajabb s\u00e9r\u00fcl\u00e9seket okozzon.<\/li>
            7. Ha a forr\u00f3v\u00edz- vagy g\u0151zk\u00f6vet\u00e9st karbantart\u00e1s miatt \u00e1tmenetileg le kell \u00e1ll\u00edtani, \u00fcgyelni kell arra, hogy elker\u00fclhet\u0151 legyen a h\u0151k\u00f6vet\u00e9si cs\u0151 \u00e9s a f\u0171t\u00f6tt anyagvezet\u00e9k megfagy\u00e1sa \u00e9s elt\u00f6m\u0151d\u00e9se.<\/li>
            8. A h\u0151k\u00f6vet\u00e9ssel ell\u00e1tott berendez\u00e9sek eset\u00e9ben, ha m\u0171k\u00f6d\u00e9s k\u00f6zben h\u0151lead\u00e1sra van sz\u00fcks\u00e9g, a h\u0151meg\u0151rz\u00e9st ki kell kapcsolni, lefel\u00e9 kell \u00e1ll\u00edtani, vagy a h\u0151k\u00f6vet\u00e9st le kell tiltani, hogy elker\u00fclhet\u0151 legyen a t\u00falmeleged\u00e9s a berendez\u00e9s m\u0171k\u00f6d\u00e9se sor\u00e1n.<\/li>
            9. Az elektromos h\u0151k\u00f6vet\u00e9snek figyelmet kell ford\u00edtania a h\u0151k\u00f6vet\u00e9si terhel\u00e9sre, hogy megakad\u00e1lyozza a t\u00falterhel\u00e9st \u00e9s a kiold\u00e1st vagy a t\u0171zgy\u00fajt\u00e1st; az elektromos h\u0151k\u00f6vet\u00e9st el\u0151sz\u00f6r ki kell kapcsolni, \u00e9s a karbantart\u00e1s sor\u00e1n figyelembe kell venni a f\u0171t\u00f6tt anyagok fagy\u00e1sg\u00e1tl\u00f3 int\u00e9zked\u00e9seit.<\/li>
            10. Meg\u00e1llap\u00edt\u00e1st nyert, hogy a g\u0151z nyomk\u00f6vet\u00e9s elvezet\u00e9se rendellenes, p\u00e9ld\u00e1ul v\u00edzkalap\u00e1cs, a v\u00edzelvezet\u00e9s mennyis\u00e9ge t\u00fal kicsi vagy t\u00fal nagy, \u00e9s a nyomk\u00f6vet\u00e9s nem forr\u00f3, \u00e9s id\u0151ben kell kezelni.<\/li>
            11. Fogadja el a ciklikus fagy\u00e1sg\u00e1tl\u00e1s m\u00f3dszer\u00e9t, a fagy\u00e1sg\u00e1tl\u00e1si k\u00f6vetelm\u00e9nyek teljes\u00edt\u00e9se eset\u00e9n pr\u00f3b\u00e1lja meg cs\u00f6kkenteni a kering\u00e9si mennyis\u00e9get, hogy elker\u00fclje a t\u00falzott kering\u00e9s okozta felesleges pazarl\u00e1st.<\/li>
            12. A t\u0171zolt\u00f3 szelepes kutakhoz hasonl\u00f3an, ha a f\u00f6ldalatti szelepek z\u00e1rva vannak, a k\u00fatfedelek \u00e9s szelepek nyit\u00e1s\u00e1ra szolg\u00e1l\u00f3 szersz\u00e1mokat fel kell szerelni, hogy felk\u00e9sz\u00fcljenek a v\u00e9szhelyzetekben t\u00f6rt\u00e9n\u0151 id\u0151ben t\u00f6rt\u00e9n\u0151 haszn\u00e1latra.<\/li>
            13. Id\u0151ben sz\u00fcntesse meg a cs\u00f6p\u00f6g\u00e9s \u00e9s a sziv\u00e1rg\u00e1s jelens\u00e9g\u00e9t a helysz\u00ednen, ker\u00fclje el a j\u00e9g jelens\u00e9g\u00e9t a f\u00f6ld\u00f6n \u00e9s a leveg\u0151ben l\u00f3g\u00f3 j\u00e9g jelens\u00e9g\u00e9t. Ha el\u0151fordul, id\u0151ben foglalkozzon vele.<\/li>
            14. Rendszeresen v\u00e9gezzen fagyv\u00e9delmi ellen\u0151rz\u00e9seket az ellen\u0151rz\u00e9sek min\u0151s\u00e9g\u00e9nek biztos\u00edt\u00e1sa \u00e9rdek\u00e9ben. Ugyanakkor \u00f6sszpontos\u00edtson az ellen\u0151rz\u00e9sekre a k\u00fcl\u00f6nb\u00f6z\u0151 id\u0151szakok, h\u0151m\u00e9rs\u00e9kleti viszonyok \u00e9s a fagyv\u00e9delem neh\u00e9zs\u00e9gei alapj\u00e1n.<\/li><\/ol>\n\n\n\n

              A practical sourcing checklist for general industrial chemicals<\/h2>\n

              General chemical decisions usually become clearer when teams move from theory to application fit: what the material needs to do, how pure it needs to be, how it behaves in the real process, and what downstream constraints it must satisfy.<\/p>\n

                \n
              • Define the use case first:<\/strong> laboratory understanding and industrial purchasing often need different levels of specification detail.<\/li>\n
              • Check process compatibility:<\/strong> handling, blending, stability, and downstream interaction often determine whether a material is practical to use.<\/li>\n
              • Review storage and transport behavior:<\/strong> shelf life, moisture sensitivity, temperature range, and packaging can all matter commercially.<\/li>\n
              • Use sample validation when the application is critical:<\/strong> small-scale confirmation often saves the most time before a full purchasing decision.<\/li>\n<\/ul>\n

                FAQ for buyers and formulators<\/h3>\n

                Why can a material that looks correct on paper still underperform in use?<\/strong>
                Because real-world process conditions, substrate interaction, and storage behavior can reveal problems that are not obvious in a simplified specification review.<\/p>\n

                Should technical chemical selection always start with the lowest-cost option?<\/strong>
                Not usually. The lowest purchase price is not always the lowest use cost once process fit, stability, and downstream quality are considered.<\/p>\n","protected":false},"excerpt":{"rendered":"

                Winter anti-freezing and anti-condensation work in chemical factory is the main means to ensure safe production. In order to prevent all freezing and condensation accidents, the anti-freezing and anti-condensation work<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[],"class_list":["post-4873","post","type-post","status-publish","format-standard","hentry","category-laboratory-news"],"yoast_head":"\nHow do chemical plants prevent freezing and condensation in winter? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Winter anti-freezing and anti-condensation work in chemical factory is the main means to ensure safe production. 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