Thlasik laia Closed Circuit Cooling Tower te hnathawh dan dik

 

 

Thlasik laiin closed circuit cooling tower kalpui dan bulpui ber chuanti-freeze venhimna, dry/wet mode switching, parameter optimization, enfiah leh enkawl dan te a ni. Coil leh pipeline-te freezing leh cracking venna tur a ni a, chutih rualin cooling efficiency leh equipment safety a nih theih nan hmalak a ngai bawk. Operation plan chu operation mode, ambient temperature leh system configuration angin siam tur a ni.

 

 

 

1. Pre-Thlasik Anti-Freeze Inbuatsaihna (Thlasik hmaa tih tur a ni)

System Insulation tihchakna a ni

Tower shell, heat exchange coil, inlet/outlet pipe, spray pipeline, valve leh water collection pan te chu rock wool emaw polyurethane insulation layer 50mm aia sei hmangin khuh la, a pawn lam layer-ah waterproof treatment hnawih rawh. Pipeline langsar takah self-regulating electric heating tape dah la, temperature control linkage chu 4 degree-a activate tur leh 8 degree-a stop turin set a ni a, low-lying pipe section leh dead corner-te chu ngaihtuah rawh.

 

Anti-Freeze Solution buatsaih dan

Internal circulation (process water side) ah ethylene glycol emaw propylene glycol antifreeze emaw dah la. Local minimum temperature (eg. 30% ethylene glycol for -15℃environment) angin concentration siamrem la, freezing point chu ambient temperature aiin 5–10℃a hniam zawk tih enfiah rawh. Corrosion inhibitor inmil hmangin thlak leh rawh.

 

Draining leh Purging tih te

Hun rei tak chhunga hmanraw khar a nih chuan drain leh vent valve zawng zawng hawng vek la, coil, pipeline leh water collection pan-a tui awm chhunte chu uluk takin tifai la, a vawt loh nan compressed air hmangin spray rawh. Hun rei lote-shutdown atan chuan internal circulation-ah flow chhunzawm zel tur a ni.

 

Automatic Control System hmanga hnathawh a ni

Set low-temperature alarm when return water temperature<=5℃, fan frequency tihtlem/shutdown leh spray pump start/stop nena inzawm. Tui khawlna pan chu electric heating leh liquid level interlock hmanga thuam la, dry burning a awm loh nan.

 

 

 

2. Hman laiin Anti-Freeze leh Parameter Optimization (Core Operation) .

 

Internal Circulation (Process Water Side): Flow leh Temperature nghet tak vawng reng tur

 

Shutdown emaw flow cutoff emaw a awm lo

Load tlem hnuaiah pawh internal circulation flow rate tlem ber ( Design flow 30% aia tam emaw a tlukpui emaw) vawng reng tur a ni. Coil-a tui tlakchham loh nan bypass valve emaw auxiliary pump emaw hman theih a ni.

 

Temperature control dan tur

Tui kir lehna temperature chu 8–15℃ah control rawh . Cold air heat exchange tihziaawmna turin temperature hniam takah fan speed off emaw tihhniam emaw tur a ni. Temperature hniam tak takah chuan cooling tower bypass la, tui lumna vawng reng turin process waste heat hmang rawh.

 

Antifreeze hmanga enkawl a ni

Kar tin antifreeze concentration leh freezing point enfiah thin la, concentration tlahniam avanga a hlawhchham loh nan a hun takah replenish thin ang che.

 

Pawn lam atanga inher (Spray Water Side): Temperature-Controlled Start/Stop leh Dry/Wet Switching

 

Wet hmanga hnathawh a ni

Ambient temperature 5℃aia tam emaw a tlukpui emaw a nih chuan normal spraying . Return water temperature 5–7℃a tlahniam chuan spray pump chu automatic in titawp rawh . Tui khawlna hmunah electric heating dah la , tui lumna chu℃4 aia tam emaw a tlukpui emaw a awm theih nan .

 

Dry hmanga hnathawh a ni

Ambient temperature a awm chhunzawm zel chuan<0℃, completely drain the spray system, turn off the spray pump, and use only fan air cooling (full dry mode) to completely eliminate the risk of spray water freezing.

 

A hun laiin spray a awmChuan

spraying a ngai a, short-cycle start/stop (eg minute 10 run, minute 20 stop) adopt la, spray pipeline-ah heat tracing insulation hnawih rawh.

 

Fan leh air volume tihdanglam theih a ni

Variable frequency control hmang rawh. Speed ​​tihhniam emaw, temperature hniam takah pawh tlan kual vel emaw. Parallel multiple tower tan chuan concentrate load operation hmangin tower pakhata heat load leh outlet water temperature tihsan leh freezing risk tihziaawmna tur a ni.

 

 

 

3. Shutdown leh Restart chungchang Specifications te

Hun rei lote-shutdown ( Darkar 72 aia tlem emaw, a tlukpui emaw)

Internal circulation pump chu kal tir la, bypass hawng la, tui lumna chu 5℃aia tam emaw, a tlukpui emaw vawng reng rawh ; spray system chu drain la, heat tracing insulation hmangin dah rawh.

 

Long-term shutdown (>Darkar 72 chhung)

Internal circulation leh spray system chu uluk takin drain la, compressed air hmangin purge la, valve zawng zawng kha khar la, seal tha rawh. Coil-ah hian venhimna atan antifreeze tlem te te inject theih a ni.

 

Restart dan tur a ni

Insulation, heat tracing leh pipeline te integrity enfiah hmasa phawt ang che. Internal circulation pump chu zawi zawiin start la, temperature chu zawi zawiin 10℃aia sang thlengin tisang la, chutah chuan cold shock awm loh nan ambient temperature angin spraying emaw fan emaw on rawh.

 

 

 

 

4. Nitin enfiah leh enkawl (Nitin a ngai) .

Parameter enkawl dan tur

Return water temperature, pressure leh current darkar 2 danah record la, tui temperature 5℃aia tam emaw, a tlukpui emaw leh pressure nghet tak a awm theih nan.

 

Anti-freeze endik a ni

Insulation layer, heating tape leh tui lakna pan te chu nitin enfiah thin ang che. Ice hmuh a nih chuan tui lum nen melt la; tui lum leih khap tlat a ni. Air inlet leh filler-a ice awm zat chu tifai la, boruak luh theihna turin.

 

Tui quality enkawl dan tur

Tui hi thlasik laiin a scaling duh hle. Filter te chu kar tin tifai la, thla tin pH leh hardness test thin la, tui chu a hun taka chhuah la, replenish thin la, chu chuan clogging leh corrosion a awm loh nan.

 

Electric hmanga enkawl dan tur

Motor, frequency converter leh control cabinet-te waterproofing leh anti-freeze performance enfiah la, temperature hniam takah normal startup a nih theih nan.

 

 

 

 

5. Hriselna leh Energy-Saving Key Points

 

Spray energy hman leh freezing risk tihtlem nan temperature hniam takah dry mode hi dah pawimawh ber rawh. Power consumption tihtlem nan fan leh pump frequency chu load nen match rawh.

 

Cold wave emergency plan siam rawh. Temperature hniam tak takah spray kha titawp la, insulation leh internal circulation tihlumna tichak la, a tul chuan electric heating hun eng emaw chen hmang rawh.

 

 

Thlasik laiin closed circuit cooling tower hman hian hun a duh a ni anti-freeze chu bottom line atan, flow chu core atan, leh automatic control chu means atan hman a ni. Insulation, heat tracing, dry/wet switching, parameter control leh enfiah fo hmang hian freezing avanga hmanrua chhiatna chu a tha thei ang bera pumpelh theih a ni a, hei hian him, efficient leh energy{1}}saving operation a ti thei a ni.