Danfoss AVTQ Flow Controlled Temperature Control
Specifications
- Qauv: 003R9121
- Daim ntawv thov: Flow-controlled temperature controls for use with plate heat exchangers in district heating systems
- Tus nqi ntws: AVTQ DN 15 = 120 l / h, AVTQ DN 20 = 200 l / h
- Kev xav tau siab: AVTQ DN 15 = 0.5 bar, AVTQ DN 20 = 0.2 bar
Cov lus qhia rau kev siv
Daim ntawv thov
AV'TQ yog qhov kev tswj qhov kub thiab txias feem ntau siv nrog cov phaj kub hloov pauv rau cov dej kub hauv cheeb tsam cua sov. Lub valve kaw ntawm qhov ntsuas kub nce siab.
Qhov system
AVTQ tuaj yeem siv nrog ntau hom phaj kub exchangers (daim duab 5). Cov chaw tsim khoom kub exchanger yuav tsum tau hu rau kom paub meej:
- tias AV'TQ tau txais kev pom zoo siv nrog tus neeg siv khoom xaiv
- xaiv cov khoom raug raug thaum txuas cov khoom siv hluav taws xob sib txuas,
- qhov tseeb kev sib txuas ntawm ib lub phaj kub exchangers; txheej txheej yuav tshwm sim, piv txwv li txo kev nplij siab.
Cov kab ke ua haujlwm zoo tshaj plaws thaum lub ntsuas hluav taws xob tau teeb tsa hauv lub tshuab hluav taws xob (saib daim duab 1). Txhawm rau kom tsis muaj kev ua haujlwm raug cai, thermal flow yuav tsum raug zam vim tias cov dej kub yuav nce siab thiab yog li ua kom tsis muaj kev thauj khoom. Rau qhov zoo tshaj plaws kev taw qhia ntawm kev sib txuas siab loosen cov txiv ntseej (1), tig lub diaphragm rau hauv qhov xav tau (2) thiab ceev cov txiv ntoo (20 Nm) - saib daim duab. 4.
Nco tseg hais tias cov dej tshaj tawm nyob ib ncig ntawm lub sensor yuav tsum ua raws li qhov yuav tsum tau muaj rau cov raj tooj liab.
Kev teeb tsa
Txhim kho qhov kub thiab txias hauv kab rov qab rau ntawm thawj sab ntawm lub tshav kub exchanger (koog tsev kawm ntawv cua sov sab). Cov dej yuav tsum ntws mus rau qhov kev taw qhia ntawm tus xub. Txhim kho cov tswj valve nrog qhov kub thiab txias ntawm qhov sib txuas ntawm cov dej txias, nrog cov dej ntws hauv cov kev taw qhia ntawm xub. Lub txiv mis rau kev sib txuas ntawm lub raj capillary yuav tsum tsis txhob taw tes rau hauv qab. Haum lub sensor nyob rau hauv lub tshav kub exchanger; nws txoj kev taw qhia tsis tseem ceeb (daim duab 3).
Peb pom zoo kom lub lim nrog max. mesh loj ntawm 0.6 hli yuav tsum tau ntsia ob qho tib si ua ntej ntawm kev tswj qhov kub thiab txias ua ntej ntawm kev tswj valve. Saib ntu "Function Failure".
Kev teeb tsa
Cov kev cai yam tsawg kawg nkaus hauv qab no yuav tsum tau ua kom tau txais kev ua haujlwm tsis muaj teeb meem:
- Q qib min.
- AVTQ DN 15 = 120 1/h
- AVTQ DN 20 = 200 Vh
- APVTQ min
- AVTQ DN 15 = 0.5 bar
- AVTQ DN 20 = 0.2 bar
Ua ntej teeb tsa, lub kaw lus yuav tsum tau yaug thiab tso pa tawm, ob qho tib si ntawm thawj sab thiab theem nrab ntawm cov khoom siv hluav taws xob. Cov hlab ntsha capillary los ntawm tus tsav valve mus rau lub diaphragm kuj yuav tsum tau muab tso rau ntawm (+) thiab (-) sab. CEEB TOOM: Lub li qub mounted nyob rau hauv lub ntws yuav tsum tau qhib ua ntej lub li qub mounted nyob rau hauv lub rov qab. Kev tswj tau ua haujlwm nrog qhov ntsuas kub tsis tu ncua (tide) thiab qhov ntsuas kub hloov tau.
Qhib cov tswj kom txog thaum qhov yuav tsum tau tapping ntws tau thiab teeb tsa qhov yuav tsum tau tapping kub los ntawm tig tus tswj tuav. Nco ntsoov tias lub kaw lus yuav tsum muaj lub sijhawm ruaj khov (kwv yees li 20 s) thaum teeb tsa thiab qhov ntsuas kub yuav tsum qis dua qhov ntsuas kub.
T max. sec. = txog 5 c hauv qab T thawj ntws
Hom T tua
- AVTQ 15 40 oc
- AVTQ 20 35 oc
Kev ua haujlwm tsis ua haujlwm
Yog hais tias lub valve tswj tsis tau, cov dej kub tapping kub yuav zoo ib yam li qhov tsis muaj load kub. Qhov ua rau tsis ua hauj lwm tej zaum yuav yog me me (piv txwv li gravel) los ntawm kev pabcuam dej. Qhov ua rau ntawm qhov teeb meem yuav tsum tau kho kom sai li sai tau, peb thiaj li pom zoo kom lub lim yuav tsum tau nruab ua ntej ntawm lub valve tswj. Tej zaum yuav muaj qhov txuas ntxiv ntawm chav ntsuas kub thiab diaphragm. Nco ntsoov tias tib qhov ntau ntawm cov khoom txuas ntxiv yog remounted, yog tias tsis muaj qhov ntsuas kub yuav tsis yog 350C (400C) raws li tau hais.
Cov lus nug nquag
- Q: Lub hom phiaj ntawm AVTQ yog dab tsi?
- A: AVTQ yog kev tswj qhov kub thiab txias feem ntau siv nrog cov phaj kub hloov pauv hauv cheeb tsam cua sov.
- Q: Kuv yuav tsum nruab lub sensor li cas kom tau txais txiaj ntsig zoo?
- A: Lub sensor yuav tsum tau muab tso rau hauv lub tshav kub exchanger raws li qhia nyob rau hauv daim duab 1 kom pom kev ua tau zoo.
- Q: Dab tsi yog qhov tsawg kawg nkaus ntws tus nqi thiab kev xav tau siab?
- A: Tus nqi qis kawg nkaus yog AVTQ DN 15 = 120 l / h thiab AVTQ DN 20 = 200 l / h. Lub siab xav tau yog AVTQ DN 15 = 0.5 bar thiab AVTQ DN 20 = 0.2 bar.
Cov ntaub ntawv / Cov ntaub ntawv
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Danfoss AVTQ Flow Controlled Temperature Control [ua pdf] Phau ntawv qhia AVTQ 15, AVTQ 20, AVTQ Flow Controlled Temperature Control, AVTQ, Flow Controlled Temperature Control, AVTQ Flow Control, Temperature Control, Control |
