Nkewa Sillcock Frost-Free: Hose Bib Rupture N'ime oghere mgbidi¶
Sillcocks na-enweghị ntu oyi, nke ahakwara dị ka bibbs hose nke na-enweghị ntu oyi, hydrants mgbidi, ma ọ bụ ọkpọ mmiri na-eguzogide oyi, na-echebe ebe ndị na-ebubata mmiri na mpụga pụọ na mbibi okpomọkụ dị ala efu. N'adịghị ka eriri mkpakọ ọdịnala nke usoro valvụ ya na-ebi n'elu mgbidi mpụta, sillcock na-enweghị ntu oyi na-edobe oche valve shutoff ya n'ime envelopu ọkụ na-ekpo ọkụ nke ụlọ ahụ. Ọla ọla elongated ma ọ bụ gbọmgbọm ọla kọpa na-atụ n'etiti 200 millimeters na 350 millimeters (8 ruo 14 sentimita) na-ejikọ aka na-arụ ọrụ mpụta na oche valvụ dị n'ime. Mgbe emechiri aka spigot, mmiri na-emechi n'ime ebe obibi nwere oyi, na-enye ohere ka mmiri fọdụrụ n'ime gbọmgbọm jiri ike ndọda gbapụta n'èzí site na nozulu.
Ọdịda okpomọkụ na-apụta mgbe onye bi na-ahapụ eriri ubi, nkwụnye njikọ ngwa ngwa, ihe nkesa ọtụtụ ọdụ ụgbọ mmiri, ma ọ bụ nozzle shutoff nke etinyere na spigot mpụta n'oge oyi na-ekpo ọkụ. Ihe dabara adaba na-etolite akara hydraulic mechiri emechi nke na-egbochi mmiri ịpụ na gbọmgbọm sillcock kwụ ọtọ. Mgbe okpomọkụ ikuku dara n'okpuru 0 degrees Celsius (32 degrees Fahrenheit), ice na-etolite na oghere mpụta ekpughere ma na-abanye n'ime ya n'akụkụ tube ahụ. N'ihi na mmiri mmiri na-amụba ihe dịka pasent 9 mgbe ọ na-adaba n'ime ice crystalline, mmiri ahụ tọrọ n'etiti plọg ice na-aga n'ihu na oche valvụ ime ụlọ mechiri emechi na-etinye n'okpuru mgbochi hydrostatic, na-ebugharị nrụgide hydraulic n'elu 280,000 kilopascals (40,000 pound kwa square inch).
Nrụgide hydrostatic a dị oke egwu karịrị ike mbelata nke ọla kọpa ma ọ bụ gbọmgbọ ọla, na-eme ka eriri ogologo gbawara n'akụkụ ahụ ọkpọkọ n'ime nhazi mgbidi zoro ezo. Ụdị ọdachi nke ọdịda a dị na mmiri na-eme ka ọ ghara ịda mbà: ọkpọkọ gbawara agbawa adịghị apụta n'oge oyi mgbe ọkpọkọ na-anọgide na-emechi, n'ihi na oche valvụ dị n'ime na-anọgide na-emechi n'azụ mgbawa ahụ. Ihe mberede ahụ na-eme ọnwa ole na ole n'ime ụbọchị mmiri na-ekpo ọkụ nke mbụ mgbe onye nwe ụlọ mepere spigot n'èzí. Mmiri nke ime obodo na-agafe oche valve, na-ebufe 40 ruo 60 lita (galọn 10 ruo 16) kwa nkeji ozugbo n'ime oghere dị n'ime ime ụlọ, ihe mkpuchi na-ekpo ọkụ, studs na-agbanwe agbanwe, na idei mmiri mechiri okpuru ulo na-egosighi otu ihe ịrịba ama nke nsogbu na mbara ala.
Mkpa: Ihe agaghị eme
Ya adịla mgbe ahapụla sillcock na-enweghị ntu oyi gbawara agbawa ka ị na-agba ọsọ iji lelee ime ụlọ, n'ihi na valvụ mepere emepe na-ahapụ 40 ruo 60 lita (galọn 10 ruo 16) kwa nkeji ozugbo n'ime mkpuchi mgbidi gị. Echela na spigot dị n'èzí na-arụ ọrụ n'oge opupu ihe ubi nanị n'ihi na mmiri na-esi na eriri ubi na-asọpụta, ebe nrụgide mpụga na-ekpuchi mgbidi dị n'ime oghere iju mmiri. Zere ịnwa iji ọwa propane na-enwu ọkụ mee ka onye a na-enyo enyo na-agbaze sillcock kpọnwụrụ akpọnwụ, nke na-eme ka mgbidi dị n'ime ime, ihe mgbochi vapor, na ịwụsa ihe arụrụ arụ. Ejila silicone caulk mechie ọnụ mpụta nke sillcock ma ọ bụrụ na egbochiri oghere ịkwa mmiri flange, nke na-ejide ọnyà mmiri n'ime envelopu ụlọ ahụ.
Mee nke a ugbu a¶
- Tụgharịa aka sillcock nke mpụta na-arụ ọrụ n'akụkụ elekere ruo mgbe emechiri ya nke ọma ka ịkwụsị mmiri na-agba ọsọ gafere oche valvụ ime n'ime oghere mgbidi.
- Ọ bụrụ na mmiri na-aga n'ihu na-asọpụta n'ihi valvụ oyi kpọnwụrụ akpọnwụ ma ọ bụ akpụchara ajị, gbadaa na valvụ nke mechiri emechi ma ọ bụ valvụ mmiri nke ụlọ ma mechie ya ozugbo.
- Nweta mgbidi dị n'ime ime ma ọ bụ oghere uko ụlọ ozugbo n'azụ mgbanaka dị n'èzí, dị ka ọnụ ụlọ ụlọ dị n'okpuru ala, ebe nchekwa akụrụngwa, ma ọ bụ crawlspace.
- Wepu sekit eletriki na-ebunye oghere mgbidi mmiri mmiri na ogwe ọkụ eletrik bụ isi iji kpochapụ ihe egwu egwu sitere na wiwi mmiri juru.
- Debe bọket nchikota n'okpuru mgbidi akọrọ na-awụsa n'uko ụlọ ma ọ bụ mkpọ ala, na-akụ ọnya akọrọ akọrọ iji belata ibu mmiri tọrọ atọ.
- Mepee faucets ime ụlọ dị obere ka ọ daa mbà n'obi eriri mmiri wee wepụ mmiri fọdụrụ na ọkpọkọ gbawara ekewa.
- Bee ihe nleba anya windo akọrọ nke na-atụ 300 millimeters na 300 millimeters (12 sentimita na 12 sentimita asatọ) n'okpuru ọkpọkọ ime ụlọ na-agba ọsọ iji kpughee gbọmgbọm sillcock gbawara agbawa maka ihicha na nnọchi.
flowchart TD
A["Agbanyere ọkụkọ dị n'èzí n'oge opupu ihe ubi"] --> B{"Mmiri ọ na-asọ adịghị ike ma ọ bụ na-ada ụda dị ka ihe na-agba agba na mgbidi?"}
B -- "Ee" --> C["Ngwa ngwa mechie Aka mgbawa Mpụga"]
B -- "Mba" --> D["Mee ule nrụgide mkpịsị aka na Spigot Nozzle"]
D --> E{"Isi mkpịsị aka nwere ike ịkwụsị mmiri ịgba ọsọ kpamkpam?"}
E -- "Ee" --> F["Chọpụta ogologo Barrel gbawara n'ime oghere mgbidi"]
E -- "Mba" --> G["Sillcock Barrel emebibeghị yana nrụgide ahịrị"]
F --> C
C --> H["Chọta Valve dịpụrụ adịpụ nke ime ụlọ ma ọ bụ mkpọchi isi"]
H --> I["Kewapụ ihe na-enye mmiri na nrụgide fọdụrụnụ na-agbapụta"]
I --> J["Wepụ sekit eletriki n'ọgba mgbidi emetụtara"]
J --> K["Mepee oghere mgbidi si n'ime ka inyocha Barrel ọla kọpa"]
K --> L["Wepụ ihe mkpuchi juputara ma wepụta ndị na-anụ nkụ"]
L --> M["Unthread ma ọ bụ bechapụ Sillcock gbawara agbawa wee wụnye nkeji ọhụrụ na mgbada ala"]
Anatomi na mekaniki nke valves sillcock na-enweghị ntu oyi¶
Ịghọta ọrụ injinia nke hydrants na-enweghị ntu oyi na-akọwa ihe kpatara ikewapụ mmiri na-ada ada mgbe amachibidoro mmiri mmiri. Ọkọlọtọ sillcock na-enweghị ntu oyi nwere ọtụtụ mgbakọ arụrụ arụ arụrụ arụ na-agbakọba ihe mkpuchi ụlọ na mpụta, oghere na-akpụ mgbidi mpụta, yana ime ụlọ nwere ntụ oyi.
Ahụ valvụ dị n'èzí nwere nkedo ọla ma ọ bụ nkedo ọla dị arọ nke na-etinye aka na-arụ ọrụ, mkpọkọ akị, flange na-arị elu, eriri eriri, na ihe na-emebi ikuku ikuku. Flange na-arị elu na-agụnye oghere ịghasa nke agbagoro agbagoro iji chekwaa unit ahụ megide siding mpụga ma ọ bụ masonry, yana ihe nkedo na-agbada ala nke na-amanye gbọmgbọm dị n'ime mkpọda n'ala mgbe etinyere ya na mgbidi kwụ ọtọ.
Ịgbatịa n'ime ahụ site na ahụ mpụta bụ ọla kọpa siri ike ma ọ bụ igwe gbọmgbọm ọla, nke a na-arụpụtakarị site na ọla kọpa ụdị L dị arọ ma ọ bụ ọla ọla na-acha uhie uhie. A na-arụpụta ogologo gbọmgbọm n'ụdị 100, 150, 200, 250, 300, na 350 millimeters (4, 6, 8, 10, 12, na 14 inch). Ogologo gbọmgbọm ahọpụtara ga-adaba na mkpokọta mgbidi ahụ, gụnyere mkpuchi mpụta, ịkwa akwa, 2x4 ma ọ bụ 2x6 osisi, mgbidi ime ụlọ, na ogologo zuru oke iji tinye oche valvụ dịkarịa ala 50 millimeters (2 sentimita) n'ime ụgbọ elu ime ụlọ na-ekpo ọkụ.
N'ime gbọmgbọm ọla kọpa na-ebi n'osisi na-arụ ọrụ elongated, bras siri ike ma ọ bụ mkpanaka ígwè a na-etinye na ya na njedebe splined na-ejikọta ya na aka mpụta. N'ebe dị n'akụkụ nke ọzọ nke ime ụlọ, azuokokoosisi ahụ na-akwụsị na ebe a na-edebe ọla kọpa nke nwere akwa akwa elastomeric bibb dị arọ. Mgbe onye ọrụ na-agbagharị aka mpụta n'akụkụ elekere, eriri azuokokoosisi na-aga n'ihu na eriri ọla dị n'ime, na-anya igwe igwe rọba megide oche ọla dị elu nke dị na ntinye ntinye ime. Ihe ntinye ntinye ahụ nwere njikọ njikọta, nke na-adịkarị 12.7-millimita (0.5-inch) eriri ọkpọ nwoke na mpụta na iko ọla kọpa nwanyị 12.7-millimita n'ime ime, ma ọ bụ ụlọ ọrụ PEX crimped.
Sillcocks ọgbara ọhụrụ na-agụnye ngwa mgbochi mgbanaka azụ azụ, ahapụtara dị ka ihe na-emebi ikuku ikuku (okpu mgbochi siphon), nke dị n'elu nkedo mgbanaka mpụta. Mgbe mmiri na-aga n'ihu n'okpuru nrụgide, diski ike sere n'elu rọba dị fechaa na-ebuli megide diaphragm EPDM na-agbanwe agbanwe, na-emechi oghere ikuku ikuku na-eduzi mmiri site na eriri mmiri. Mgbe nrụgide ahịrị na-adaba na efu, diski na-ese n'elu mmiri na-adaba site na ike ndọda, na-emepe oghere ikuku na ikuku iji mebie oghere ọ bụla nke siphonage na ikwe ka mmiri dị n'ime sillcock barrel na-asọpụta kpamkpam.
Fisiks nke friji ruptures: njide hydraulic na nrụgide hoop¶
Mbibi nke igwe sillcock na-enweghị ntu oyi anaghị apụta site na ice na-agbanye radially megide mgbidi ọkpọkọ dị ka osisi siri ike. A na-ebute igwe igwe gbawara agbawa site na nrụgide hydraulic n'ime mmiri mmiri ọ tọrọ atọ, nke ụkpụrụ temomenaịka nke mgbanwe usoro na ihe arụrụ arụ na-achịkwa.
Mgbe mmiri mmiri dị jụụ ruo 0 degrees Celsius (32 degrees Fahrenheit) wee tụgharịa n'ime ice crystalline hexagonal, olu ya kpọmkwem na-abawanye site na 1.000 cubic centimeters kwa gram ruo 1.090 cubic centimeters kwa gram, mgbasawanye nke ihe dịka pasent 9.0. N'ime usoro ọkpọkọ mepere emepe, mgbasawanye olu a na-ebuli mmiri mmiri azụ azụ n'ụzọ na-adịghị mma n'ime nnukwu ebe nkesa nke ime obodo ma ọ bụ tankị mgbasawanye na-ebulighị nrụgide ahịrị.
Mgbe eriri ubi na-anọgide na-ejikọta ya na spigot dị n'èzí, mmiri na-agbanye n'ime gbọmgbọm ahụ kwụ ọtọ. N'ihi na nkedo ọkpọkọ nke dị na mpụga na-ekpughere ikuku oyi, mmiri dị n'ime oghere ahụ na nsọtụ mpụta nke gbọmgbọm ahụ na-ebute ụzọ, na-emepụta plọg ice siri ike nke na-adịghị agwụ agwụ. Ka ọ dị ugbu a, oche valvụ dị n'ime ka na-emechi emechi, na-ekepụta ọnụ ụlọ hydraulic mechiri emechi n'etiti plọg ice na-eto eto na oche azụ.
Ka oyi na-atụ na-abanye n'ime gbọmgbọm ọla kọpa, mmiri ndị ọzọ na-ajụ oyi, na-agbasa site na pasent 9. N'ihi na mmiri bụ mmiri na-adịghị ejikọta ya, mgbasawanye olu a na-ebute oke nrụgide hydrostatic n'ime obere akpa nke mmiri mmiri mmiri tọrọ atọ. Dabere na nyocha ụlọ nyocha nke American Water Works Association na ụlọ nyocha sayensị na-ewu ụlọ, nrụgide hydraulic n'ime ọkpọkọ na-ekpo ọkụ na-abawanye ngwa ngwa, gafere 280,000 kilopascals (paụnd 40,000 kwa square inch).
A na-egosipụta nrụsi ọrụ arụrụ arụ na mgbidi cylindrical site n'usoro nrụgide Barlow hoop: sigma = (P * D) / (2 * t). N'ime usoro a, sigma na-anọchi anya nrụgide hoop okirikiri na megapascals, P na-anọchi anya nrụgide hydrostatic dị n'ime megapascals, D na-anọchite anya dayameta dị n'èzí nke ọkpọkọ (15.9 millimeters / 0.625 inches for 0.5-inch nominal tube), na t na-anọchi anya mgbidi ọkpọkọ (nke bụ 1.0 millimeters / 0).
Mgbe nrụgide dị n'ime ahụ ruru 70,000 kilopascals (paụnd 10,150 kwa square inch), nrụgide hoop gburugburu karịrị 550 megapascals (79,800 pound kwa square inch), na-akarị ike ike ike nke ọla kọpa annealed. gbọmgbọm ọla kọpa ahụ na-amalite ịgbawa n'ụzọ rọba, na-akpụ akpụ n'akụkụ ọka ogologo ya ruo mgbe anya mmiri igwe meghere n'obere oghere nke nwere milimita 25 ruo 75 millimeters (1 ruo 3 sentimita) n'ogologo. Ozugbo mgbidi ọkpọkọ ahụ gbawara, nrụgide dị n'ime ahụ na-adaba, mmiri nke fọdụrụnụ na-adabakwa nke ọma, na-eji ihe mgbochi ice na-ekpuchi anya mmiri ahụ gbawara agbawa nke na-ezochi mmebi ihe owuwu ahụ ruo oge opupu ihe ubi.
| Usoro ọganihu na-ekpo ọkụ | Oke okpomọkụ | Steeti anụ ahụ n'ime Sillcock Barrel | Nrụgide Line Hydrostatic Line | Mmetụta Ọdịdị na Barrel ọla kọpa |
|---|---|---|---|---|
| Nkịtị Static Ọrụ | 10 ruo 20 Celsius C (50 ruo 68 degrees F) | 100 pasent mmiri mmiri mmiri | 350 ruo 550 kPa (50 ruo 80 psi) | Nchekwa efu; ọkpọkọ na-arụ ọrụ n'ime oke na-agbanwe |
| Mmalite okpomọkụ mbụ | 0 ruo mwepu 5 degrees C (23 ruo 32 degrees F) | Plọg ice na-etolite na nozzle mpụta | 700 ruo 3,500 kPa (100 ruo 500 psi) | Ihe na-agbanwe agbanwe; obere mgbasawanye diametric |
| Mkpọchi hydraulic dị elu | Mbelata 5 ruo 15 degrees C (5 ruo 23 degrees F) | Mmiri mmiri mmiri tọrọ atọ n'akpụkpọ ice | 70,000 ruo 200,000 kPa (10,000 ruo 29,000 psi) | Ebe mkpụrụ osisi gafere; mgbidi ọla kọpa thins |
| Ọdachi dị egwu | N'okpuru mwepu 15 degrees C (N'okpuru 5 degrees F) | Hydraulic gbawara n'ahụ mgbidi gbawara agbawa | Nrụgide efu (wepụrụ site na mgbawa) | Ogologo eriri ogologo gbawara; ice akàrà akwa |
| Mgbanwe nke oge opupu ihe ubi | N'elu 4 degrees C (Karịrị 39 degrees F) | Akpụrụ mmiri na-agbaze kpamkpam; gbọmgbọm efu | Nrụgide efu ruo mgbe ejiri meghere | Ihe ize ndụ zoro ezo; ezoro ezo mgbidi idei mmiri na ojiji |
The spring thaw paradox: diagnostic test and leak verification¶
Ihe ize ndụ bụ isi nke sillcock na-enweghị ntu oyi gbawara agbawa bụ na ndị nwe ụlọ amaghị na ọkpọkọ gbawara ruo mgbe mmebi mmiri dị ukwuu n'ime ime emeela. N'ihi na oche valvụ dị n'elu nke mgbawa ahụ, eriri mmiri ahụ nwere ike ịnọdụ ala n'enweghị nsogbu ruo ọnwa ole na ole n'oge mmiri na-enweghị mmiri. Oge a na-atụgharị aka mpụta ahụ na-aga n'ihu elekere, mmiri nrụgide na-agafe oche valvụ n'ime gbọmgbọm ahụ, na-esi na ogologo nke ogologo gbawara n'ime oghere mgbidi ahụ.
Nnwale nrụgide mkpịsị aka nke mpụga¶
Tupu iji eriri dị n'èzí na nke mbụ n'oge opupu ihe ubi, ma ọ bụ mgbe ọ bụla a na-ahapụ eriri mmiri na mberede n'oge oyi oyi, mee nyocha nrụgide mkpịsị aka mkpịsị aka iji chọpụta nguzosi ike nke gbọmgbọm.
Wepu hoses niile, ihe nkewa, na ihe mgbakwunye na eriri mmiri mmiri, hapụ eriri ọla ahụ kpamkpam. Tụgharịa aka mgbanaka ahụ n'aka aka elekere ka ọ dị ihe dị ka otu n'uju zuru ezu iji malite iru mmiri. Debe isi mkpịsị aka gị n'elu oghere okirikiri nke eriri mmiri ahụ, na-eji ike kachasị elu mechie mmiri ahụ kpamkpam.
Ọ bụrụ na gbọmgbọm sillcock adịghị emebi emebi, nrụgide mmiri nke obodo nke 400 kilopascals (paụnd 58 kwa square inch) ga-arụsi ọrụ ike megide isi mkpịsị aka gị, na-eme ka ọ ghara ikwe omume ijide akara ahụ maka ihe karịrị sekọnd ole na ole, na mmiri na-efesa nke ukwuu n'ahụ gị. Ọ bụrụ na gbọmgbọm sillcock gbawara n'ime oghere mgbidi ahụ, ị ga-enwe ike ijide isi mkpịsị aka gị n'elu nozzle na ọ fọrọ nke nta ka ọ bụrụ enweghị nguzogide, na-akwụsị mmiri na-asọpụta kpamkpam. Mmiri ahụ na-ewere ụzọ nke kacha nta, na-atụgharị site na mkpịsị aka gị wee fesa na gbọmgbọm gbawara agbawa ozugbo n'ime mgbidi ime ụlọ gị.
Ọ bụrụ na ị nwere ike iji mkpịsị aka gị kwụsị ịgbasa mmiri ahụ ngwa ngwa, mechie aka mmiri ahụ ozugbo. Gee ntị nke ọma megide siding nke mpụta: ọ bụrụ na ị nụ ụda mkparị dị iche ma ọ bụ na-agba ọsọ n'azụ mgbidi ahụ nke na-akwụsị mgbe ejiri mechiri emechi, gbọmgbọm sillcock gbawara ma gbasie ike na-ejupụta envelopu ụlọ ahụ.
Ntinye ime ozugbo yana ikewapụ mmiri¶
Mgbe akwadoro sillcock kewara ekewa, ịkwụsị mmiri na-asọba n'ime mgbidi ahụ chọrọ ikewapụ ọsọ ọkpọkọ kpọmkwem. N'ihi na ntapu ahụ na-apụta n'etiti oche valvụ dị n'ime na oghere dị n'èzí, imechi aka mpụta na-akwụsị ịgbasa. Agbanyeghị, ọ bụrụ na mmebi friza ahụ mebiekwara oche valvụ dị n'ime ma ọ bụ yipụ eriri azuokokoosisi, imechi aka agaghị akwụsị ịgbasa mmiri.
Chọta valvụ nkwụsị nke ime ụlọ raara onwe ya nye na-enye spigot n'èzí. N'ime ihe arụrụ arụ nke ọma, koodu ụlọ nyere iwu ka valvụ mechiri emechi nke dị n'ime oghere a na-ekpo ọkụ iji wepụrụ eriri mpụta ọ bụla. Chọgharịa ọkpọkọ azụ azụ site na ebe sillcock na-abanye na mgbidi dị n'ime. Chọọ valvụ bọọlụ ọla ma ọ bụ valvụ nkwụsị na-ekpofu nke dị na okpuru ulo n'uko ụlọ, n'ime ebe a na-enweta crawlspace, ma ọ bụ n'azụ oghere mgbidi plastik n'ime ụlọ a rụchara.
Tụgharịa valvụ bọọlụ dị n'ime ime ogo 90 ruo mgbe ọ kwụ ọtọ na ọkpọkọ, ma ọ bụ tụgharịa wiilịkwụ na-ekpofu ihe n'akụkụ elekere ruo mgbe ọ siri ike. Ọ bụrụ na valvụ dị n'ime bụ valvụ nkwụsị na-ekpofu, tinye obere ịwụ ozugbo n'okpuru obere okpu knurled nke dị n'akụkụ akụkụ valvụ ahụ. Mepee okpu ọbara ahụ gbadoro ụkwụ n'aka elekere ka iji wụpụ mmiri niile fọdụrụnụ n'ime ọkpọkọ na-agba ọsọ n'etiti valvụ ime na sillcock. Ọ bụrụ na mmiri na-aga n'ihu na-esi n'ọdụ ụgbọ mmiri mepere emepe na-asọpụta n'akwụsịghị akwụsị, valvụ shutoff ime ụlọ adaala n'ime, na-achọ ikewapụ ozugbo na valvụ mmiri nke ụlọ dum.
Ọ bụrụ na enweghị valvụ mkpuchi ime ụlọ raara onwe ya nye, mechie valvụ ọrụ mmiri maka ụlọ ahụ niile ozugbo. Mepee eriri mmiri oyi dị n'ime ụlọ na mgbago dị ala iji wụpụ nrụgide ahịrị pụọ na mgbakọ mgbidi mpụta. Eweghachila mmiri nke ụlọ dum ruo mgbe sillcock gbawara agbawa nọpụrụ iche site na iji valvụ inline shutoff valvụ, okpu njedebe nke dabara adaba, ma ọ bụ nkeji nnọchi zuru oke.
Mwepụta mmiri nke oghere mgbidi na ụkpụrụ ihicha nhazi¶
Mmiri a na-agbanye n'ime oghere mgbidi na-akpata nnukwu mmebi nhazi na gburugburu ebe obibi. Mgbakọ mgbidi dị n'èzí nwere mkpuchi bat fiberglass chere ihu kraft, ajị ịnweta, ma ọ bụ cellulose a na-afụ afụ, nke mgbidi osisi gbara ya gburugburu, bọọdụ strand strand (OSB) sheathing, na gypsum ime ụlọ akọrọ. Ozugbo e jujuru ya, mkpuchi mmiri na-agbadata n'ime mgbidi stud bay, na-ejide mmiri megide efere sill mgbidi dị n'okpuru ma na-emepụta gburugburu ebe obibi nke fungal n'ime awa 48.
Ịnweta oghere mgbidi idei mmiri juru¶
Ịmezi oghere mgbidi chọrọ ịmepụta oghere ime ụlọ. Anwala mgbe ọ bụla ịkpọsa oghere mgbidi juru eju site na obere oghere ndị a na-egwupụta ihe, n'ihi na mkpuchi fiberglass tọrọ atọ agaghị akpọnwụ n'ebe ọ ga-erepịakwa ihe nhazi ahụ.
Chọpụta elu ụlọ akọrọ ozugbo n'azụ na n'okpuru ebe mpụta spigot. Jiri mita iru mmiri na-adịghị emebi emebi iji mapụta oke mmiri na-aga n'ihu na mgbidi kwụ ọtọ na kwụ ọtọ. Jiri pensụl tinye akara n'akụkụ mmiri dị na mgbidi ahụ, na-agbakwunye akụkụ 150-millimita (6-inch) nke mgbidi akọrọ akọrọ gafere mpaghara mmiri mmiri.
Tọọ omimi mbelata nke ọtụtụ ngwaọrụ ma ọ bụ drywall hụrụ kpọmkwem 12.7 millimeters (0.5 inch) iji zere igbubi eriri Romex eletrik zoro ezo, eriri ọkpọkọ, ma ọ bụ ọkpọkọ ọkpọkọ na-ekpofu ahịhịa n'ime mgbidi ahụ. Beechapụ oghere nyocha akụkụ anọ dị mma nke na-atụ ma ọ dịkarịa ala 300 millimeters n'obosara na 600 millimeters n'ịdị elu (inch 12 n'obosara na 24 sentimita asatọ n'ịdị elu) kpọmkwem n'okpuru ntinye sillcock pipe. Chekwaa panel akọrọ akọrọ ahụ emebibeghị ka ọ bụrụ ndebiri patch n'oge mweghachi mgbidi.
Banye n'ime oghere mgbidi meghere yi uwe nitrile dị arọ yana nku ume N95 ma ọ bụ P100 enwetara. Jide bat ndị ahụ jupụtara na mkpuchi ma dọpụta ha kpamkpam na stud bay, na-etinye ihe na-asọpụta ozugbo n'ime akpa nhicha polyethylene dị arọ 6-mil dị arọ. Ụsụ fiberglass juru eju na-atụfu ụlọ elu igwe ha na ihe nkedo resins, na-eme ka ha ghara ikwe omume iweghachite uru R ha nwere; tụfuo mkpuchi mmiri kpamkpam. A ghaghị ịsacha ihe mkpuchi cellulose juru eju ma ọ bụ kpochaa ya kpamkpam ruo efere sill nke ala.
Ebumnobi ihicha na imepụta ihe gbasara mmụọ¶
Nhazi nhazi nke ọma chọrọ usoro ikuku na-asọpụta na ikpochapụ mmiri mmiri. Jiri mita iru mmiri dị n'ụdị pin nwere mkpuchi mkpuchi nwere mkpuchi mgbidi iji tụọ ọdịnaya mmiri (MC) nke mpụta OSB sheathing, structural 2x4 ma ọ bụ 2x6 mgbidi studs, na ala naanị efere. Osisi ime ụlọ anaghị emetụta ya na-edekọkarị n'etiti 8 na 12% ọdịnaya mmiri. Nhazi zuru oke na-akarịkarị pasent 30 ọdịnaya mmiri, na-anọchite anya saturation fiber ebe mmiri mmiri na-ejupụta oghere mkpụrụ ndụ osisi.
Debe onye na-ebugharị ikuku centrifugal ma ọ bụ axial nke ụlọ ọrụ ozugbo n'ihu oghere akọrọ akọrọ, na-akuda nozzle elu n'ogo ogo 45 iji fesa ikuku na-agba ọsọ n'ime oghere stud mepere emepe. Dowe ihe nrụpụta ihe nrụpụta obere ọka dị ala (LGR) n'etiti ime ụlọ iji dọpụta uzuoku mmiri na-ekpochapụ n'ikuku. Debe okpomọkụ gburugburu ụlọ n'etiti 21 degrees Celsius na 27 degrees Celsius (70 degrees Fahrenheit na 80 degrees Fahrenheit) iji mee ka ọnụ ọgụgụ mmiri na-ekpo ọkụ si na osisi nhazi.
Gaa n'ihu n'ịkpọsa igwe ruo mgbe osisi niile na-akpụ akpụ, efere ala, na mpụta mpụta dara n'okpuru pasent 15 ọdịnaya mmiri, na ebumnuche nke pasent 12. Awụnyela mkpuchi mkpuchi ọhụrụ ma ọ bụ patch drywall mgbe mmiri dị n'osisi karịrị pasenti 16, ebe ịchichi mmiri tọrọ atọ n'ime oghere mgbidi dị n'èzí na-eduga n'osisi dị n'okpuru ala na-ere ere na ihe ọkpụkpụ ojii (Stachybotrys chartarum).
| Ngwakọta Mgbakọ mgbidi | Omume saturation na adịghị ike | Ebumnuche iru mmiri ọdịnaya | Usoro ịkpọ nkụ | Ụkpụrụ Mweghachi ma ọ bụ Ndochi |
|---|---|---|---|---|
| Fiberglass Batt mkpuchi | Ngwa ngwa saturation; slumps na efere ala; ọnwụ nke ụlọ elu na R-uru | Enweghị ike ịkpọ nkụ nke ọma | Wepụta ma tụfuo ozugbo | Dochie jiri bat ọhụrụ na-enweghị ihu ma ọ bụ kraft ihu mgbe akpọchara nkụ |
| Ihe mkpuchi cellulose na-agba ọkụ | Absorbs ruo 130 percent arọ akọrọ; ndị na-egbochi ọkụ na-asachapụ | Enweghị ike ịkpọ nkụ na mgbidi | Wepụ ya kpamkpam na onye na-anakọta HEPA | Tụfuo kpamkpam; fegharia cellulose ọhụrụ ka emechiri oghere zuru oke |
| Studs Structural na efere | Na-etinye mmiri n'ime ọka sel; zara gafee obosara; ire ere karịa 20 pasent MC | N'okpuru 15 pasent mmiri ọdịnaya | Ikuku ntụzịaka dị elu na ikuku LGR | Na-emeso elu ala na EPA-edebanyere aha antimicrobial; dochie ma ọ bụrụ rere ure |
| OSB Mpụga Sheathing | Ọzịza ọnụ; ngwa ngwa ihicha; adhesive hydrolysis n'okpuru saturation na-adịgide adịgide | N'okpuru 15 pasent mmiri ọdịnaya | Ntugharị ikuku kpọmkwem n'ime oghere; dehumidify si n'ime ime | Ọnụ ájá na-aza ma ọ bụrụ na ọ dị obere; dochie sheathing ngalaba ma ọ bụrụ na delaminated |
| Gypsum Ime ụlọ Drywall | Mgbasa nke isi; delamination akwụkwọ; ọnwụ nke structural shiee ike | N'okpuru 12 pasent mmiri ọdịnaya | Beepụ akụkụ mmiri; anwala ịzọpụta gypsum etinyere | Jiri 12.7 mm (0.5 in) ọhụrụ 12.7 mm (0.5 in) nke ahịhịa na-eguzogide mmiri dochie oghere mbelata |
Ndochi na nhazigharị ụkpụrụ maka sillcocks na-enweghị ntu oyi¶
Iwepụ sillcock na-enweghị ntu oyi gbawara agbawa na ịwụnye ihe ngbanwe nke injinia chọrọ iji nlezianya amụba akụkụ ya, nkwadebe nkwonkwo ọkpọkọ na geometry drainage iji gbochie nkewa ifriizi n'ọdịnihu.
Nhọrọ nha nha na ogologo gbọmgbọm¶
Ịhọrọ ogologo gbọmgbọm ziri ezi ka achọrọ maka nchebe ifriizi. Tụọ nha nke mgbidi ahụ kpọmkwem site na mpụta mkpuchi elu ruo n'ihu mgbidi akọrọ, ma gbakwunye ọkpụrụkpụ nke oghere mgbidi ime ọ bụla ma ọ bụ ihe ndọghachi azụ n'ala. gbọmgbọm sillcock ga-adị ogologo oge iji tinye oche valvụ dị n'ime ma ọ dịkarịa ala 50 millimeters (2 sentimita) n'ime oghere dị ọkụ, nke nwere ọnọdụ nke ụlọ ahụ.
Ọ bụrụ na mbụ etinyere sillcock 200-millimita (8-inch) na mgbidi 2x6 nwere nnukwu brik dị n'èzí, oche valvụ ahụ nwere ike nọrọ n'ime oghere mgbidi dị n'èzí a na-ekpoghị ọkụ ebe oyi oyi na-adaba n'okpuru oyi. N'ọnọdụ a, kwalite na ụdị 250-millimita ma ọ bụ 300-millimita (10-inch ma ọ bụ 12-inch) ka oche valvụ na-abanye na efere sill n'ime okpuru ulo na-ekpo ọkụ ma ọ bụ crawlspace.
Ịmepụta olulu mmiri mmiri na-agbada nke ọma¶
Njehie nrụnye kachasị na-ebute ọdịda sillcock na-enweghị ntu oyi bụ ịtụba valvụ ahụ azụ n'ime ime ụlọ. Mgbe sillcock gbadara azụ azụ, mmiri dị n'ime gbọmgbọm enweghị ike ịpụ site na ike ndọda mgbe ejiri mpụta mechie. Mmiri ahụ tọrọ atọ na-anọgide n'ime tube ahụ ọbụlagodi na eriri ogige ahụ kwụsịrị, na-ekpo ọkụ siri ike ma na-ekewa gbọmgbọm ahụ n'oge oyi oyi mbụ.
Koodu ịgba mmiri na-enye iwu ka awụnye sillcocks na-enweghị ntu oyi na-aga n'ihu na mpụta nke opekata mpe 6 millimeters kwa milimita 300 (0.25 inch kwa ụkwụ). Ọtụtụ sillcocks dị mma na-etinye flange mpụta nwere ụdị wedge nke na-ewepụta ụda ala a na-akpaghị aka mgbe a na-etinye ya na-agbanye n'akụkụ mpụta kwụ ọtọ.
Ọ bụrụ na mgbachi mgbidi dị n'èzí nwere akụkụ, dị ka akụkụ ụkwụ kwụ ọtọ ma ọ bụ osisi cedar gbawara agbawa, ị ga-etinyerịrị ngọngọ mgbanaka n'azụ sillcock flange. Detuo ma bechapụ ngọngọ mgbanye osisi ma ọ bụ ihe mejupụtara iji mebie akụkụ n'apata ụkwụ, na-egosi plọm, ihu nrịgo dị larịị nke na-ekwe nkwa mkpọda sillcock gbada n'ala ahịhịa. Chekwaa flange nke mpụta na mgbidi arụpụtara site na iji skru 50-millimita (2-inch) #10 igwe anaghị agba nchara.
Ụzọ njikọ ọkpọkọ: threaded, solder, na push-fit¶
Sillcocks na-enweghị ntu oyi nwere njikọ ntinye dị iche iche iji jikọta ya na ọkpọkọ nkesa ezinụlọ dị ugbu a:
- ** Njikọ njikọ: *** Ngwunye ime nke sillcock nwere 12.7-millimita (0.5-inch) eriri ọkpọkọ nwoke. Kechie ndị nwoke eri na ise zuru wraps nke elu-njupụta PTFE eri akara teepu na tinye a mkpa oyi akwa nke plumbing ọkpọkọ compound. Tinye eriri sillcock n'ime ọla kọpa nwere eri nke nwanyị dị ugbu a ma ọ bụ nkuku anya ntị dobe nke edobere na mgbawa mgbidi. Jiri mgbanaka abụọ mgbe ị na-emesi ike: otu mgbanaka na sillcock hex flats na mgbanaka ndabere na nwanyị dabara adaba iji gbochie ịgbagọ n'ime ọkpọkọ ịgba ọsọ.
- ** Njikọ ọla edo edochiri: *** Mgbe ị na-ere ụzọ mbata sillcock, ị ga-ewepụrịrị mgbakọ stem na-arụ ọrụ n'ime ya kpamkpam tupu itinye ọkụ na ọkụ. Okpomọkụ sitere na ọwa ọkụ propane ma ọ bụ MAPP gas na-agbada gbọmgbọm ahụ na-agbaze igwe na-asa rọba, na-ewepụ ihe mgbanaka dị n'ime, ma mebie valvụ nyocha plastik. Tọpụ akị mpụta ahụ, wepụsịa mgbakọ ahụ ma wepụ ya kpam kpam na gbọmgbọm ahụ tupu ịgbanye nkwonkwo mbata. Ozugbo nkwonkwo ahụ jụrụ kpamkpam, tinyeghachi mgbakọ azuokokoosisi ma mee ka akị ahụ sie ike.
- ** Njikọ Njikọ: ** Maka ngwa ngwa, nrụnye na-enweghị ọkụ, họrọ sillcock nwere ntinye ntinye ntinye nke ụlọ ọrụ mmepụta ihe ma ọ bụ na-ere obere ọkpọkọ ọla kọpa dị mkpụmkpụ nke dabara na ASSE 1061-gbaara ikike ntinye ihe. Wepu ma kpochapu ọla kọpa na-abata, CPVC, ma ọ bụ PEX ọkpọkọ, kaa omimi ntinye ya, ma mee ka ọ dabara nke ọma ruo mgbe ị nọ ọdụ megide nkwụsị ọrụ.
Koodu mmiri mmiri mba ụwa na ụkpụrụ nchedo ifriizi¶
Koodu ịwa mmiri na-ewepụta ụkpụrụ teknụzụ siri ike na-achịkwa njikọ ụdọ mpụta, nchebe azụ azụ, yana mgbochi mgbochi iji kpuchido ahụike ọha na akụrụngwa akụrụngwa.
United States: International Plumbing Code (IPC) na International Residential Code (IRC)¶
N'okpuru Code Plumbing International (IPC) na International Residential Code (IRC): - Nkebi nke 305.4 IPC nyere iwu na a ga-echebe ọkpọkọ mmiri na mgbidi mpụta ka ọ ghara ịdị oyi, na-achọ ka mpụta mmiri dị n'èzí bụrụ nke ihe na-egosi ntu oyi na ihu igwe oyi. - Nkebi nke IPC 608.16.4.2 chọrọ ka echebe njikọ hose site na siphonage azụ site na ikuku ikuku ikuku na-agbaso ASSE 1019 ma ọ bụ ASSE 1052. - Nkebi nke IRC P2903.9.5 nyere iwu na sillcock ọ bụla dị na mputa nwere valvụ mechiri emechi nke dabara na ọdụ ụgbọ mmiri maka igbapu oyi. - Usoro Plumbing Uniform (UPC) Nkeji 603.5.7 n'otu aka ahụ na-achọ hydrants mgbidi na-egosi ntu oyi nwere oghere na-agbaji onwe ya.
Canada: Code Plumbing Code of Canada (NPC)¶
N'okpuru Code Plumbing nke Canada (NPC): - Nkebi NPC 2.6.2.1 nyere iwu na ọkpọkọ mmiri na akwa arụnyere n'ebe a na-ajụ oyi ga-echebe ya pụọ na mmebi ntu oyi site na omimi olili zuru oke, mkpuchi ọkụ, ma ọ bụ ntinye n'ime envelopu ime ụlọ dị ọkụ. - NPC Nkebi 2.6.2.7 chọrọ backflow nchebe na ọ bụla sooks bibb na mpụta mmiri mpụta, iwu ngwaọrụ conforming ka CSA B64.2 (Vacuum Breakers) ma ọ bụ CSA B64.2.1 (Hose Connection Vacuum Breakers na Dual Check). - Iwu iwu ịkwọ ụgbọ mmiri nke obodo Canada nyere iwu ka ọ bụrụ na sillcocks niile dị n'èzí arụnyere n'otu ezinaụlọ na ọtụtụ ezinaụlọ ga-abụ ụdị ihe akaebe na-egosi ntu oyi nke nwere ihe mgbochi na-agbapụta azụ azụ nke na-ezute ụkpụrụ CSA B125.
United Kingdom: Iwu inye mmiri 1999¶
Na United Kingdom, a na-ahazi taps bib n'ogige mpụta n'okpuru Iwu Supply (Water Fittings) Iwu 1999: - Usoro nhazi nke 2 Nkeji 15 nyere iwu ka echedo akwa mmiri nke dị n'èzí ka ọ ghara ịta oyi site na valvụ ọrụ dị n'ime nke nwere mgbata mmiri dị n'ime ụlọ ahụ. - British Standard BS 1010-2 na-akọwapụta ihe achọrọ maka mgbata n'èzí, na-achọ valvụ nlele abụọ na ọkpọkọ ọkọnọ iji gbochie azụ-siphonage nke mmiri na-adịghị mma n'ime netwọk ụlọ. - Ndị na-ahụ maka mmiri na-atụ aro ka kpọpụ ọkpọkọ n'èzí ma wepụ ya site na oke ọkụ dị n'ime tupu oge oyi na-erughị efu.
Ajụjụ a na-ajụkarị¶
Ọ bụrụ na m kpughee eriri ubi n'oge oyi, sillcock na-enweghị ntu oyi ka nwere ike kewaa?¶
Ee, sillcock na-enweghị ntu oyi ka nwere ike kewaa ọbụna na-ewepụ eriri ahụ ma ọ bụrụ na etinye valvụ ahụ na mkpọda azụ n'ime ime ụlọ, na-egbochi mmiri fọdụrụnụ site na ike ndọda. Na mgbakwunye, ịhapụ njikọ ọla na-ejikọta ngwa ngwa, ndị na-ekesa eriri, oge plastik, ma ọ bụ akpa mkpuchi ihe eji achọ mma dabara adaba n'elu spigot na-ejide mmiri mmiri n'ime gbọmgbọm kwụ ọtọ, na-egbochi ikuku ikuku ịbanye site na ikuku ikuku na-eme ka mgbawa hydraulic yiri ya.
Enwere m ike ịrụkwa gbọmgbọm ọla kọpa gbawara agbawa n'elu sillcock nwere ihe na-ere ahịa ma ọ bụ teepu mmiri anaghị egbochi ya?¶
Ee e, ị nweghị ike ịrụzi mgbanaka ogologo oge na gbọmgbọm sillcock na-eji solder, epoxy putty, teepu silicone, ma ọ bụ aka aka mkpakọ, n'ihi na grids mmiri obibi na-arụ ọrụ na nrụgide n'etiti 350 na 550 kilopascals (50 na 80 pound kwa square inch). Ire gbọmgbọm ọla kọpa a dọwara adọwa nke nwere nrụrụ rọba siri ike na mbelata mgbidi na-emepụta nkwonkwo a na-apụghị ịdabere na ya nke ga-agbaji n'ike n'okpuru nrụgide ọchịchị obodo, na-efesa mmiri n'ime oghere mgbidi gị. A ga-ewepụrịrị sillcock gbawara agbawa ma jiri mgbakọ ụlọ mmepụta ihe zuru oke nke ọhụrụ dochie ya.
Kedu ihe kpatara sillcock m ji gbawa ma ọ bụrụ na ọ nwere ihe mkpuchi ụfụfụ akpọchiri akpọchi na ya?¶
Ihe mkpuchi mkpuchi mkpuchi (bibb hoods) anaghị emepụta okpomọkụ; ha na-ejide ọnyà okpomọkụ sitere n'ime ime ụlọ site na ọkpọkọ ígwè. Ọ bụrụ na eriri ma ọ bụ nkewa nke ogige ka dị n'okpuru mkpuchi ahụ, mmiri ahụ tọrọ n'ime gbọmgbọm ahụ na-ajụ oyi n'agbanyeghị mkpuchi ụfụfụ ozugbo okpomọkụ dị n'èzí na-adị n'okpuru oyi maka ihe karịrị awa 12. Na mgbakwunye, ọ bụrụ na sillcock slọghachi azụ ma ọ bụ ime ụlọ adịghị ekpo ọkụ, ihe mkpuchi ụfụfụ dị n'èzí na-enye nchebe ọkụ na-enweghị atụ megide oyi na-erughị efu.
Ogologo oge ole n'ime mgbidi ka oche valvụ sillcock kwesịrị ịdị?¶
Oche valvụ dị n'ime nke sillcock na-enweghị ntu oyi ga-agbatị ma ọ dịkarịa ala 50 millimeters (2 sentimita) n'ime oghere dị ọkụ, na-adịgide adịgide nke ụlọ ahụ, gafere kpamkpam mgbidi mpụta na ụgbọ elu akọrọ. Ọ bụrụ na oche valvụ ahụ dị n'ime oghere mgbidi dị n'èzí na-enweghị atụ n'etiti mkpuchi fiberglass na siding nke dị n'èzí, ifufe oyi oyi ga-eme ka oche ígwè dị n'okpuru na-ekpo ọkụ, na-eme ka mgbakọ dị n'ime ụlọ na-ekpo ọkụ ma gbawaa ọbụna mgbe a kwụsịrị eriri ahụ.
Asambodo enyemaka mbụ¶
Ịmezi ọdịda n'ime mgbidi dị n'ime mgbidi na dochie sillcocks oyi kpọnwụrụ gụnyere igbutu mgbidi akọrọ, wepụ ihe mkpuchi fiberglass, ịrụ ọrụ ọkpọkọ ọla kọpa, na iji ọkụ ọkụ na-emeghe ma ọ bụ ngwá ọrụ ọkụ n'ime oghere. Ihe mberede n'oge ihe mberede ọkpọkọ na-ebutekarị mkpụkpụ ọla gbagọrọ agbagọ site na tubing ọla kọpa, mmerụ ahụ anya site na ụmụ irighiri mmiri na-efe efe na-efe efe, ọkụ na-ekpo ọkụ site na ọkụ na-ere ere, na nnukwu mgbakasị iku ume site na ijikwa eriri mkpuchi fiberglass. Ndị nwe ụlọ, ndị ọrụ na-arụzi ihe, na ndị na-ahụ maka ụlọ kwesịrị ịnọgide na-enwe asambodo na-arụsi ọrụ ike na enyemaka mbụ ndị okenye, resuscitation cardiopulmonary (CPR), na automated external defibrillator (AED) ojiji. Usoro ọmụmụ ọkọlọtọ nke ndị otu dị ka American Red Cross, St John Ambulance, ma ọ bụ ndị na-enye ọzụzụ ahụike mberede na mpaghara na-enye ọzụzụ bara uru na nlekọta ọbara ọgbụgba siri ike, ihicha ọnya, nkwụsi ike ọkụ, na nlekọta onye ọrịa dị nchebe ruo mgbe ndị otu ahụike mberede rutere.
enyochara isi mmalite¶
- American Society of Plumbing Engineers (ASPE). * Akwụkwọ ntuziaka Plumbing Engineering Design *, Mpịakọta 2: Sistemụ Mmiri oyi na Nchekwa friji.
- International Code Council (ICC). * 2024 International Plumbing Code (IPC)*, Nkebi nke 305 (Nchekwa nke ọkpọkọ) na Nkebi 608 (Nchekwa azụ azụ).
- International Code Council (ICC). * 2024 International Residential Code (IRC)*, Nkebi P2903 (Sistemụ Na-enye Mmiri).
- Òtù Mba Nile nke Ndị Ọrụ Plumbing na Mechanical (IAPMO). * 2024 Uniform Plumbing Code (UPC)*, Isi nke 6: Nnyefe na nkesa mmiri.
- American Society of Sanitary Engineering (ASSE). * ASSE Standard 1019: Mgbidi hydrants, enweghị friza, ụdị igbapu akpaaka *.
- Ndị otu ụkpụrụ Canada (CSA). * Usoro CSA B64: Ndị na-egbochi nlọghachi azụ na ndị na-emebi emebi *.
- Ụlọ ọrụ Standards British (BSI). TS EN 13959 valvụ nyocha mgbochi mmetọ.
Ntuziaka emetụtara¶
- Nkwụsi ike na mwepu ihe mberede mmiri gbawara agbawa
- Main Water Shutoff Valve Stuck ma ọ bụ Rusted Gate Valve Stem Snap
- N'okpuru-sink Angle Kwụsị Valve ọdịda yana nrịbama dị elu
- Usoro Ndozi Akpụkpọ na Nhazi Ịkpọ nkụ mgbe mmiri mebisịrị
- Ọkpọkpọ oyi kpọnwụrụ akpọnwụ na mgbaze ihe mberede na nchekwa ifriizi