Oxygen hoses: piav qhia, qhov ntev, GOST thiab tshuaj xyuas

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Tam sim no, ntau txoj haujlwm yog ua los ntawm kev siv vuam. Vim li no, cov pa oxygen hoses tau dhau los ua cov khoom siv nrhiav, thiab lawv kuj yooj yim thauj.

lub tes tsho yog dab tsi

Ib pa oxygen hose yog ib lub hose hloov tau ntev, uas yog tsim los ntawm ib txheej ntawm cov hlua xov, tiv thaiv ob sab los ntawm ob peb txheej ntawm roj hmab compound. Cov khoom no yog qhov xav tau tshaj plaws thaum ua haujlwm nrog vuam. Tau kawg, cov khoom siv no muaj daim ntawv thov nqaim heev, tab sis, txawm tias qhov teeb meem no, hnub no nws yog ib qho ntawm cov khoom siv roj hmab nrov tshaj plaws. Lub hom phiaj tseem ceeb ntawm lub hose no yog qhov filling lossis muab cov pa roj. Feem ntau, txoj haujlwm no yuav tsum tau ua thaum ua haujlwm ua haujlwm.

Scope ntawm hose

Oxygen lub tes tsho, piv txwv li, hauv kev tsim khoom, yog qhov tseem ceeb rau kev muab cov khoom xws li oxygen, propane, acetylene thiab atmospheric cua, uas yog los ntawm cov khoom siv nyob ruaj ruaj. Cov khoom siv nyob ruaj ruaj no tuaj yeem yog cov pa oxygen, acetylene lossis propane lub tog raj kheej. Kev xa khoom yog ua tiavlos ntawm cov khoom no mus rau qhov chaw uas muaj kev lag luam ua haujlwm. Tsis tas li ntawd, cov pa oxygen hoses tau ua tiav siv hauv kev tsim khoom siv kho mob. Feem ntau, koj tuaj yeem pom kev siv lub hose hauv kev kho mob lub neej uas muab cov pa oxygen, lossis hauv ib qho tshwj xeeb, lub luag haujlwm tseem ceeb ntawm qhov tseem ceeb yog muab cov pa oxygen los ntawm lub tog raj kheej mus rau lub npog ntsej muag.

Kev tshuaj xyuas cov neeg siv khoom ntawm cov khoom no txawv heev. Qee tus neeg yuav khoom txaus siab rau kev yuav khoom, lawv hais tias lub hose tiv taus kev ntxhov siab, tsis tsim kua muag lossis tawg. Txawm li cas los xij, muaj lwm cov lus thov thiab. Piv txwv li, lawv hais tias ib tug zoo tib yam liab acetylene hose, tsim rau 6 MPa, tsis tiv taus siab nyob rau hauv tej rooj plaub thiab so. Yog tias koj saib xyuas cov pa roj hmab hoses, qee tus neeg yuav khoom hais tias lawv feem ntau tawg.

Tsim

Lub tes tsho oxygen muaj ob yam. Thawj lub ntsiab yog cov txheej hauv cov roj hmab, qhov thib ob yog cov hlua khi, uas yog ua los ntawm cov paj rwb fiber ntau los yog impregnated lossis unimpregnated fibers ntawm txheej roj hmab txheej. Nws tseem yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias yog tias pom muaj kev puas tsuaj rau lub tes tsho, nws yog txwv tsis pub siv. Nws yog tsim nyog sau cia tias cov khoom no muaj xim sib txawv. Nyob ntawm cov xim ntawm lub hose, thaj tsam ntawm daim ntawv thov hloov pauv:

• liab hose yog siv rau kev ua haujlwm nrog acetylene, propane, butane, nrog rau cov pa hauv nroog thiab muaj chav kawm 1;
• chav kawm thib ob yog lub tes tsho dajxim, uas yog npaj rau kev thauj cov kua roj;
• Lub tes tsho xiav oxygen yog chav kawm 3 thiab siv los thauj oxygen.

Tab sis nws tseem ceeb heev uas yuav tsum nco ntsoov tias nws raug tso cai pleev xim rau cov khoom no hauv cov xim dub, txawm tias lawv nyob hauv chav twg. Nyob rau hauv rooj plaub no, ib tug xim txaus ntshai (groove) yog siv, uas txiav txim seb lub hose no belongs rau ib chav kawm.

Siv rau npe:

• ib dash yog thawj chav;
• chav kawm thib ob yog, raws li, ob lub dashes;
• qib peb - peb.

Cov qauv qhia tshwj xeeb rau cov hoses no yog:

• sab hauv txoj kab uas hla ntawm cov pa oxygen hose - 9 mm;
• hose OD 22mm;
• ua haujlwm siab hauv cov khoom tuaj yeem ncav cuag 6.3 MPa;
• GOST, raws li cov khoom no yog tsim - 9356-75.

tes tsho

Kev tsim khoom ntawm cov khoom no yog qhov yuav tsum tau ua rau nws dhau los ntawm kev kuaj thiab kuaj ntau lawm. Tom qab cov khoom tshiab tau tsim thiab cov txheej txheem thev naus laus zis rau nws cov khoom tsim tau tag nrho, cov khoom raug xa mus rau kev sim ntau lawm. Qhov kev sim no rau cov pa oxygen hoses suav nrog kev txheeb xyuas kev ua raws li cov kev cai uas siv rau cov khoom no. Tom qab ua tiav ntawm theem xeem, yuav tsum txiav txim siab seb puas yogseb nws puas tsim nyog siv qhov kev txhim kho no, thiab seb puas tsim nyog tsim cov khoom ntawm cov khoom tshwj xeeb no.

Kev kuaj mob

Nws tsim nyog pib nrog qhov tseeb tias txhua yam khoom siv tau raug kuaj sim, uas tom qab ntawd yuav raug siv los tsim cov pa oxygen lossis oxygen-propane hose. Cov kev ntsuam xyuas yog ua los ntawm cov khoom xyaw uas yuav ua rau cov roj hmab txheej ntawm lub hose. Tag nrho cov khoom siv txhawb zog los ntawm qhov uas lub zog ntawm cov khoom tsim los kuj yuav raug sim.

Nws tseem ceeb heev uas yuav tsum nco ntsoov tias tom qab kev tsim cov roj hmab sib xyaw, cov kua nplaum los yog muab tshuaj txhuam, ua ntej muab tso rau hauv kev tsim khoom ntxiv, ib qho kev sim ntxiv tau ua tiav, lub hom phiaj yog txhawm rau txheeb xyuas seb qhov tshwm sim. cov khoom ua tau raws li tag nrho cov qauv thiab cov kev xav tau muaj nyob rau hauv cov ntaub ntawv tswj hwm. Thawj qhov uas tau soj ntsuam yog cov yam ntxwv elastic-lub zog. Cov kev ntsuas physicochemical ntawm qhov sib xyaw ua ke kuj raug soj ntsuam. Lawv yuav tsum ua raws li tag nrho cov cai thiab cov cai, uas tau sau tseg hauv GOST 270-75.

Ntxiv rau kev txiav txim siab cov yam ntxwv no, lawv kuj kuaj xyuas qhov hardness thiab elasticity ntawm cov roj hmab uas tshwm sim, nws tsis kam rau Frost lossis kub. Lwm qhov tseem ceeb uas tau kuaj xyuas yog qhov tsis kam ntawm lub hose rau cov roj uas yuav siv tau.

Kev ntsuas kev tsim khoom

Nws yog ib qho tseem ceeb kom paub tias hauv kev tsim khoom hauv tsev tsis muaj cov txheej txheem tsim nyog rau kev sim cov khoom no. Feem ntau, hom kev txheeb xyuas no txo qis rau qhov tseeb tias lawv ntsuas qhov kev ncaj nceesntawm cov khoom tshwm sim, nrog rau kev xaiv tswj qhov ntev ntawm lub hose. Rau cov khoom uas yuav ua hauj lwm nyob rau hauv tej yam kev mob ntawm pneumatic los yog hydraulic loading, nws yog ib qho tsim nyog yuav tsum xeem dhau ib qho kev xeem kom nruj thiab kev nyab xeeb margin.

Txhawm rau ntsuas qhov ua haujlwm ntawm lub hose pressurized, sau nws nrog cov dej ua haujlwm kom txog thaum huab cua tawm tag nrho. Tom qab ntawd, nyob rau hauv qhov kev txiav txim ntawm qhov xav tau siab, lub hose yog khaws cia rau lub sijhawm xav tau. Variants raug tso cai thaum, es tsis txhob ntawm lub sijhawm kuaj ib txwm, nws raug coj mus rau lub sijhawm tawg. Yog hais tias lub tes tsho ntaub raug coj mus rau hauv tus account, ces lawv cov kev ntsuam xyuas tau ua raws li GOST 6867. Nws yog ib qho tseem ceeb rau kev txiav txim siab lub zog ntawm daim ntawv cog lus ntawm cov ntaub thiab roj hmab cov yam ntxwv.

Oxygen hose 9mm, GOST 9356-75

Lub xeev tus qauv no tsim cov qauv thiab cov cai rau cov khoom lag luam no. Los ntawm cov kev xav tau, cov hauv qab no tuaj yeem paub qhov txawv:

• Lawv yuav tsum muaj cov roj hmab sab hauv thiab cov paj rwb, los yog ua raws li cov khoom siv tshuaj impregnated thiab tsis-impregnated, txheej txheej yuav tsum yog roj hmab.
• Tib GOST kuj tsim cov kev cai rau cov xim ntawm cov khoom no nrog rau nws qhov chaw ua haujlwm.
• Qhov siab ntawm reefs ntawm lub hose yuav tsum yog los ntawm 0.2 mus rau 0.3 hli, tab sis lawv qhov dav - los ntawm 0.4 mus rau 0.5 hli. Qhov kev ncua deb ntawm pawg ntawm dashes yog los ntawm 3 mus rau 4 mm.
• Nws tuaj yeem raug sau tseg tias yog lub hose yog nyob rau hauv chav kawm thib peb, ua haujlwm nrog oxygen, thiab nws tau pleev xim rau xim dub, tom qab ntawd ntawm kev ua haujlwm siab txog li 4 MPa, uas yog40 kgf/cm2, xim kab txaij lossis dashes yeem.

Nws yog ib qho tsim nyog yuav tsum tau siv cov cim rau ntawm cov hoses uas yuav ua haujlwm hauv cov huab cua txias, suav nrog cov ntaub ntawv tswj hwm ntawm cov chaw no. Rau kev xa khoom lossis kev khaws cia, txhua lub tes tsho yog khi thiab muab tso rau hauv bays. Txoj kab uas hla ntawm qhov tshwm sim yuav tsum yog tsawg kawg 300 mm. Nws yog ib qho tsim nyog los khi cov bays nrog ib daim kab xev, qhov dav ntawm 30 mus rau 40 mm. Tsis tas li ntawd, xws li ib daim kab xev yuav tsum tau kho nyob rau hauv tsawg kawg yog peb qhov chaw. Daim kab xev yog ua los ntawm calico lossis lwm yam khoom siv uas tuaj yeem siv rau hnav thiab ua kom muaj kev ruaj ntseg ntawm lub tes tsho ntim.