Thaum siv cov tub yees hauv kev lag luam, yuav muaj xwm txheej xws li txo qis hauv lub tub yees, lossis txawm tias tsis muaj tub yees. Nyob rau hauv rooj plaub no, nws raug nquahu kom kuaj xyuas lub expansion valve ntawm chav tsev kom pom tias muaj Frost hnyav heev lossis txawm khov. Yog tias qhov no tshwm sim, nws yuav tsum tau txiav txim siab seb lub thermal expansion valve puas raug thaiv, thiab cuam tshuam nrog cov teeb meem ib kauj ruam.
1. Lub ntsiab yog vim li cas rau qhov blockage ntawm expansion valve ntawm industrial tub yees:
The blocking failure of the expansion valve of industrial refrigerators includes two ways: "dirty blocking" and "ice blocking". The main reason for dirty blocking is the existence of residues in the system, for example: welding slag, copper filings, iron filings, fibers, etc. .The main reason for ice blockage is that there is too much moisture (moisture) in the system. The main ways to generate moisture are as follows:
1. Lub tshuab nqus tsev lub sij hawm thaum lub sij hawm installation tsis txaus, thiab cov dej noo nyob rau hauv lub raj xa dej tsis tuaj yeem sab laug;
2. Cov txheej txheem vuam ntawm cov kav dej txuas tsis zoo, thiab muaj cov ntsiab lus ntawm cov pa tawm;
3. Thaum ntxiv cov tub yees rau hauv qhov system, huab cua hauv qhov txuas txuas tsis tau tshuab tawm ntawm lub hose.
4. Thaum ntxiv cov roj lubricating rau lub cev, nkag mus rau hauv huab cua.
qias neeg blockage ntawm expansion valve ntawmindustrial tub yeesfeem ntau tshwm sim ntawm lub lim kom qhuav. Ua ntej nkag mus rau hauv lub expansion valve, nws yuav tsum dhau los ntawm lub lim drier. Cov seem hauv qhov system yog cuam tshuam los ntawm lub lim, ua rau qias neeg. Lub hauv paus rau kev txiav txim qias neeg qias neeg Yog lawm, cov txheej txheem rov qab los ntawm huab cua kub yuav nce ntxiv, qib superheat yuav nce ntxiv, thiab yog tias qhov xwm txheej hnyav, nws yuav ua rau kev ua haujlwm nres. Nws yog txwv tsis pub pib lub tshuab kom txog thaum kev ntxuav cov residue tiav.
Cov dej khov thaiv ntawm lub expansion valve ntawm cov tub yees muaj feem ntau tshwm sim ntawm lub qhov throttle ntawm lub expansion valve. Lub qhov throttle yog qhov chaw uas muaj qhov kub thiab txias tshaj plaws thiab qhov tsawg tshaj plaws txoj kab uas hla ntawm tag nrho cov system. Vim qhov tshwm sim ntawm cov dej khov thaiv, lub kaw lus tsis tau tso rau hauv tub yees. Lub systemic tag nrho kub nce. Raws li qhov kub thiab txias, cov dej khov yuav maj mam yaj, thiab tom qab ntawd lub kaw lus yuav rov ua kom txias txias. Raws li qhov systemic tag nrho qhov kub qis dua, cov dej khov yuav tshwm sim dua. Yog li ntawd, kev thaiv dej khov yog ib qho txheej txheem rov ua dua.
2. Kev tshem tawm txoj kev thaiv ntawm kev nthuav dav valve ntawm kev lag luam tub yees
1. Rau qhov qias neeg qias neeg, yog tias nws tsis loj heev, tsuas yog hloov lub lim kom qhuav. Yog tias nws hnyav heev, nws yog ib qho tsim nyog yuav tsum tau ntxuav cov khoom seem hauv lub raj xa dej dua, nqus nws, thiab ntxiv cov tub yees dua.
2. Rau cov dej khov me ntsis, cov phuam kub tuaj yeem siv rau hauv cov dej khov. Yog tias qhov ntsuas dej khov loj heev, nws yuav cuam tshuam rau kev ua haujlwm ntawm lub cev, thiab lub tshuab ziab khaub ncaws yuav tsum tau hloov, thiab cov dej hauv cov kav dej yuav tsum tau muab tshem tawm dua. , nqus tsev, thiab ntxiv cov tub yees dua.
Lub expansion valve ntawm industrial tub yees yog ib qho ntawm plaub qhov tseem ceeb ntawm cov khoom hauv lub tub yees. Nws qhov tseem ceeb tshaj qhov tsis ntseeg. Nws qhov zoo yuav cuam tshuam ncaj qha rau kev ua haujlwm ntawm tag nrho cov system. Thaum ib qho txhaum tshwm sim, nws yuav tsum tau muab tshem tawm tam sim ntawd. Lub neej ua haujlwm ntawm lub freezer muaj kev ua haujlwm, kev ua haujlwm txias thiab cov nqi khiav haujlwm yog qhov tseem ceeb tshwj xeeb.