MaloTianjin, China (kumtunda)
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Cast Steel Resilient okhala pa Wedge Gate Valve

Varel Bailey tsopano wamanga kasupe wake wachinayi wakumwa kuti akwaniritse malonjezo awa. Dongosolo lake "ndizotsatira za zaka pafupifupi 40 zoyeserera ndi zolakwika kwa omwe amamwa madziwe asanu," adatero.
Pansi pali thanki yayikulu ya matayala, yomwe imatha kupirira kugwa kwa ng'ombe. Pali malo a simenti mkati mwa tayala, omwe amatha kuchotsedwa pamene mapaipi (madzi ndi ngalande) amafunika kukonzedwa. Bailey anafotokoza kuti ngati tayala likufunika kusinthidwa, thireyi yatsopano ya simenti idzapangidwa kuti igwirizane ndi tayalalo.
Ng'ombe ikabwera kuti imwe madzi, valavu imalola kuti madzi ambiri alowe, ndipo doko lomwe lili pambali ndi mphuno nthawi zonse limapopera madzi pang'ono pamwamba.
Kuphatikiza kwa madzi oyenderera pansi ndi chitsime chouma pansi pa poto ya simenti yodzaza ndi matayala kumapanga thanki yosonkhanitsa kutentha.
"Kutentha kukakhala pansi pa 0 ° F, madzi amatha kuzizira nthawi zonse, kupatula mbale yakumwa pafupifupi 1 mita m'lifupi yomwe ndidatchulapo, pamwamba pa jeti yamadzi ofunda. Ng'ombe ikabwera kudzamwa, kuthira madzi Pansipa, madzi oundana agwa pang'ono."
Lingalirolo ndi dziwe la 1 mpaka 5 la mapiri, lakuya mamita 20, lodyetsedwa ndi beseni la maekala 20 mpaka 50 ndi dongo lachilengedwe lomwe limakakamiza madzi kuyenda kuchokera pansi. Damuli limakhala ndi njira yotayikira mwadzidzidzi komanso malo opangira matailosi omwe nthawi zambiri amawongolera kuchuluka kwa madzi. Kukhetsa kwa matailosi kumayenderanso chakumwemwe kwa damu kuti kutseke kutayikira kulikonse ndikusunga malo omwe amamwamo ziweto. Mzere wa tile umagwiritsidwanso ntchito ngati potulukira kukhetsa. Ziweto ziyenera kukhala ndi mpanda kutali ndi dziwe, ndipo akasupe akumwa aziyike pafupifupi mamita 20 kuchokera kumpanda kuti zisavulazidwe ndi ziweto zodzaza.
Mapaipi odontha (monga adaumiriza dipatimenti ya zaulimi ku US) ayenera kuphimbidwa kapena kukakamizidwa mu ngalande zamatayilo kuteteza malo omwera.
Pakumanga damulo, chitoliro cha 1¼-inch chinadutsa padamu la berm ndipo chinali chakuya mamita 4 pakati pa kutalika pakati pa malo a kasupe wakumwa ndi kuya kwa dziwe. Mapaipi omwe ali padziwe amatsekedwa, ndipo pali mabowo osachepera 25 ¼-inchi m'mamita asanu omaliza kuti apange fyuluta. Vavu yachipata imayikidwa mu payipi m'dera lotchingidwa ndi mipope ndi ndodo zowongolera. Mapeto a chakumwa a chitoliro ndi chitoliro chakumwa chakumwa ayenera kutha mkati mwa mainchesi 18.
Wakumwa kwambiri ndi tayala la zida zomangira mphira 8-foot. Lili ndi madzi okwanira kuti ana a ng'ombe 40 amwe nthawi imodzi. (Mungathenso kugwiritsa ntchito matayala ang’onoang’ono—ng’ombe zaphunzira kuti zisabwere nthawi imodzi.) Matayala amenewa ndi okwera kwambiri moti amatha kuchepetsa “kusambira kwa ng’ombe” ndipo pa mlingo woyenerera wa madzi, mwana wa ng’ombe amatha kumwa. Matayala ndi amodzi mwa akasinja ochepa omwe amatha kupirira kuzizira komanso kuzunza ng'ombe.
Kuti tipange thanki ya matayala, choyamba tinapanga pulagi ya simenti pakati pa matayala m’malo ogwiriramo ntchito. Dulani bwalo la plywood kuti ligwirizane bwino ndi dzenje lomwe lili ndi matayala. Chofunika kwambiri ndi chakuti bwalolo likhoza kudutsa mosavuta mu dzenje ndipo silidzaphimba malo omwe ali pambali pamphepete pomwe mbali ya tayala imakhazikika; Malowa adzadzazidwa ndi silicone caulk pambuyo pake kuti amangire tayala ndi simenti yosalowa madzi.
Dulani bowo la chitoliro cha 3-inch PVC chokhetsa ndi chitoliro cholowera madzi inchi 1¼ pafupifupi phazi limodzi kuchokera pakati moyang'anizana ndi mzake. Ngakhale ndi mkanda wa tayala, mphete ya plywood ikhoza kutsekedwa mwamphamvu. Izi ziyenera kusiya mainchesi 4 mpaka 6 a chitoliro cha PVC ndi mainchesi 1¼ a chitoliro pansi pa plywood kuti chilumikizidwe pakuyika. Kenako, dulani chitsulo chachitsulo cha mainchesi 5 mpaka 6 ndipo pangani bwalo lokhala ndi mainchesi 4 akulu kuposa m'mphepete mwake. (Kwezani chingwe chachitsulo ndi zotsekera zotsekera kuti mupange bwalo.)
Pambuyo pozungulira zitsulo, ikani wolamulira pa bwalo-iyi idzakhala pamtunda womwe udzadzazidwa ndi simenti. Dulani chitoliro cha inchi 1¼ kuchokera pa msonkhano kufika mainchesi 1 mpaka 1½ pamwamba pa ulusi ndi m'mphepete mwake mbali zonse ziwiri. (Apa ndi pamene valavu imalowa kuchokera ku chitoliro cholowera ndi payipi.)
Ikani chophatikiziracho kutalika kwa chitoliro cha 3-inch PVC ndikuchidula mpaka kutalika kuchokera ku msonkhano kupita ku wolamulira. (Awa adzakhala kukhetsa.) Mukayika chitoliro mu dzenje la plywood (PVC joint mmwamba), lembani mkati ndi mapepala kuti simenti isalowe. Gwiritsani ntchito ndodo ⅜ inchi kuti mupinde zogwirira ntchito ziwirizo kukhala mawonekedwe a V okhala ndi makutu. Lembani mphete yachitsulo ndi konkire yapamwamba; onetsetsani kuti chitolirocho ndi chowongoka ndikuchiyika mu elevator V. Pangani mivi pa konkire yofewa ndi choko cha ng'ombe m'mphepete kuti mumvetsere kugwirizanitsa bwino kwa kubwezeretsanso dziwe. Mukaumitsa, ikani chimbale cha simenti m'mphepete ndikugaya mbali yolimba yomwe khoma lam'mbali mwa matayala limakumana ndi mphete ya mkanda. Panthawi yosonkhanitsa, kulemera kwa simenti kumakankhira pansi pambali, kufinya mphete ya mkanda, zomwe zimapangitsa kuti zikhale zovuta kugweramo.
Kuyika pansi pa dziwe kumayamba ndikukumba dzenje mozungulira chitoliro ndi njerwa zanga. Ikani lupu la payipi ya inchi 1¼ ndi gawo la njerwa 4 inchi, pafupifupi mapazi awiri kuposa pamwamba. Ikani matailosi 30-inch kapena 36-inch mugawo lomaliza la tanki. (Mulingo weniweni uwu siwofunika-pa msonkhano womaliza, waufupi kwambiri ndi wabwino kuposa wautali kwambiri.) Chitsime chouma chimagwiritsidwa ntchito ngati malo olumikiza chitoliro choperekera ndi kukhetsa chitoliro ku thanki yosungira. Amagwiritsidwanso ntchito ngati malo omwe ali pansi pa thanki yosungirako. Gwero la kutentha ndi m'nyengo yozizira.
Gwiranitsani malo osachepera 16 m'mimba mwake mozungulira matailosi a pachitsime. Onjezani mainchesi atatu ophatikizana (mwachitsanzo, miyala ya laimu yophwanyidwa, konkire yophwanyidwa bwino, ndi zina zotero) ndikuphatikiza. Nyowetsani momwe mungathere ponyamula.
Pakatikati tayala pa matailosi pachitsime. Yendetsani diski ya simenti pafupifupi phazi limodzi pamwamba pa mkanda wa tayala ndi muvi ndikugwirizanitsa chizindikiro. Gona pa tayala, gwirizanitsani payipi yolowera madzi ku chitoliro, ndipo konza njerwa zopopera potulukira PVC. Njira yosavuta yokonzekera ndikulekanitsa malekezero a matailosi ndikuwafinya ndi zingwe zazikulu za payipi. Ikani kuchuluka kwa silicone caulk pa tayala mkanda ndi mkanda notch mu simenti ndi malo simenti chimbale chimakwirira khoma.
Pokweza thireyi ya simenti, nthawi zina ndi bwino kugwiritsa ntchito zomwe zatsagana nazo. Mwanjira imeneyi, imatha kuchepetsedwa pang'onopang'ono ndikusungidwa kuti igwere mu mphete ya mikanda. Ikangodumphira mkati, onjezerani choyikapo pomwe simenti imakumana ndi khoma.
Msonkhano womaliza ndikuyika valavu yamadzi ndikudula chidutswa cha 3 inchi cha PVC kuti muyike mu mgwirizano wokwiriridwa mu simenti, mulole madzi osefukira madzi omwe mwana wa ng'ombe amatha kumwa, ndikuyika choyandama pamadziwo.
Pambuyo poika komaliza, timadzaza tanki yamadzi mpaka kusefukira kwamadzi ndikutseka padziwe. Tsiku lina pambuyo pake, tinayang’ana ngati tadontha. Nthawi zambiri timathira m'thanki yamadzi, kudikirira tsiku kuti iume, ndiyeno timayikanso m'mphepete mwake.
Gawo lomwe limapangitsa kuti kasupe wakumwa "sawume" ndi chowonjezera cha valve. Pa mbali ya valavu pali dzenje la ¼ inchi chitoliro. Timagwirizanitsa chigongono ku cholumikizira cha ndege cha mkuwa, ndikuchiloza ndikuchilozera choyandama. Izi zimapereka mtsinje wosalekeza wa madzi ofunda abwino opita pamwamba. Ngakhale pa kutentha pansi pa 0 ° F, izi ndizokwanira kuti khomo la chakumwa likhale lotseguka nthawi zonse.
M'chilimwe, pamene zinyalala midadada polowera madzi a chitoliro, basi pulagi zoyandama kutseka madzi valavu, kutchinga mpweya payipi ndi akhoza wothinikizidwa mpweya, ndiyeno kuwomba chitoliro woyera. Gwiritsani ntchito zolumikizira zamkuwa nthawi zonse; zolumikizira zitsulo ndi dzimbiri ndipo sizingalumikizidwe.
Tsogolo: kuchedwa ndi mphindi 10. Zambiri zimaperekedwa "monga momwe ziliri" kuti zingogwiritsidwa ntchito kokha osati pazamalonda kapena upangiri. Kuti muwone kuchedwa konse kwamalonda ndi machitidwe, chonde onani https://www.barchart.com/solutions/terms.


Nthawi yotumiza: Nov-11-2021

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