Sɛ́ ahoɔden-afiri a ɛkora so no, ɛtɔ mmere bi a, mprɛte mu ɔhyew sesa no de ɔhaw ahorow ba bere a wɔde di dwuma esiane akwan a wɔmfa nni dwuma yiye nti. Yɛn ankasa betumi ahwehwɛ ɔhaw ahorow bi a ɛnyɛ den mu na yɛadi ho dwuma. Wɔ ase ha no yɛhwehwɛ na yɛbɔ ɔhaw ahorow a ɛtaa ba ne ano aduru a ɛwɔ mprɛte a wotumi yi fi mu a wotumi yi fi mu no mua.
Ɔhaw ahorow a ɛtaa ba wɔ mprɛte ɔhyew a wɔde sesa nneɛma ho ne:
nsuo a ɛwɔ mu-aduru a ɛwɔ mprɛte mu ɔhyew sesa mu;
Mprɛte mu ɔhyew sesa a ɛretu (seal leakage) .
Nhyɛso a ɛba prɛte no mu ɔhyew sesa no yɛ kɛse dodo;
ɔhyew a wɔde sesa nneɛma a ɛyɛ adwuma yiye no porɔw;
nsu a ɛtwetwe fi mu;
wosow ne dede a ɛnteɛ;
mprɛte a ɛyɛ mmerɛw;
Nea edidi so yi bɛkyerɛkyerɛ nneɛma a ɛde ɔhaw ahorow a ɛwɔ atifi hɔ no ba ne ano aduru mu mmiako mmiako.
nsuo a ɛwɔ mu-aduru a ɛwɔ mprɛte mu ɔhyew sesa mu;
Nea ɛde mprɛte mu ɔhyew sesa cross-Linking: Mprɛte mu nneɛma a wɔpaw no yiye a wɔpaw no ma mprɛte no nsɛe, ɛpaapae anaasɛ ntokuru, na adwumayɛ tebea no ntumi nni nhyehyɛe ho ahwehwɛde ahorow ho dwuma; Adwennwene a ɛka ho bere a wɔde awɔw ahyɛ mprɛte no so na adwennwen a ɛyɛ mmerɛw a ɛnam krak a ɛyɛ ketewaa dodo so de ba bere a wɔde rehyɛ mu no akyi; Leakage kakra a ɛwɔ mprɛte no so no, nsuo a ɛtwetwe no ma nneɛma a ɛyɛ hu no dɔɔso wɔ nsuo no mu ma mprɛte no sɛe, na ɛde cross-nkitahodi ba.
Ano aduru a ɛbɛma woatumi atwa-nsuo ne sɛ: Fa mprɛte a apaapae anaa ɛwɔ mu no si ananmu, na fa ɔkwan a wɔfa so de hann kɔ no hwehwɛ mpaapaemu a ɛwɔ mprɛte a ɛwɔ beaeɛ hɔ no mu; Siesie adwumayɛ ho nhyehyɛe a ɛne no hyia no ma ɛne nhyehyɛe tebea horow no hyia; Ɛsɛ sɛ mprɛte mu ɔhyew a wɔde sesa no kɛse no di ahwehwɛde ahorow no ho dwuma bere a wɔresiesie na wɔreboaboa ano no, na dodow no ara na eye.
Mprɛte mu ɔhyew sesa a ɛretu (seal leakage) .
nneɛma a ɛde nsu a ɛtwetwe ba mu wɔ .HVAC nnwinnadeɛ: .Clamping kɛse no nni hɔ, ne kɛse nyɛ pɛpɛɛpɛ anaasɛ clamping bolts no yɛ loose; Gasket binom fi sealing groove no mu, efĩ wɔ posket no a wɔde sealing no fã titiriw no so, gasket no sɛe anaasɛ gasket no abɔ akwakoraa; Mprɛte no asɛe, na nhyiam no nyɛ nea ɛfata, na ɛma gasket no tu; Mpaapaemu wɔ mprɛte a wɔde hyɛ mu no mu anaasɛ baabi a wɔde hyɛ mu no.
Sɛnea wobedi mprɛte mu ɔhyew nsakrae ho dwuma:wɔ nhyɛso mu-free state, re-afɔw nnwinnade no sɛnea clamping kɛse a ɔde ma no te. Ɛsɛ sɛ kɛseɛ no yɛ pɛ na ɛyɛ pɛpɛɛpɛ.Ɛnsɛ sɛ mfomsoɔ a ɛwɔ compression scale no mu no yɛ kɛseɛ sene 0.2*mprɛte dodoɔ no nyinaa, na ɛnsɛ sɛ pɛpɛɛpɛyɛ a ɛwɔ nhyɛsoɔ mprɛte mmienu no ntam no yɛ kɛseɛ sene mm 2; Wubetumi ahyɛ afã horow a ɛretu no agyirae.Afei disassemble ɔhyew exchanger no na hwɛ emu biara, san install anaa sesa gaskets ne mprɛte; Siesie anaa sesa mprɛte no afã horow a asɛe no.
Nneɛma a ɛma nhyɛso a ɛboro so no so tew wɔ prɛte ɔhyew sesa mu:
Nneɛma a ɛde nsuo a ɛtwetwe wɔ HVAC nnwinnadeɛ mu ba: Clamping kɛseɛ no nni hɔ, ne kɛseɛ nyɛ pɛpɛɛpɛ anaasɛ clamping bolts no yɛ loose; Gasket binom fi sealing groove no mu, efĩ wɔ posket no a wɔde sealing no fã titiriw no so, gasket no sɛe anaasɛ gasket no abɔ akwakoraa; Mprɛte no asɛe, na nhyiam no nyɛ nea ɛfata, na ɛma gasket no tu; Mpaapaemu wɔ mprɛte a wɔde hyɛ mu no mu anaasɛ baabi a wɔde hyɛ mu no.
Sɛnea wobedi mprɛte mu ɔhyew nsakrae ho dwuma:wɔ nhyɛso mu-free state, re-afɔw nnwinnade no sɛnea clamping kɛse a ɔde ma no te. Ɛsɛ sɛ kɛseɛ no yɛ pɛ na ɛyɛ pɛpɛɛpɛ.Ɛnsɛ sɛ mfomsoɔ a ɛwɔ compression scale no mu no yɛ kɛseɛ sene 0.2*mprɛte dodoɔ no nyinaa, na ɛnsɛ sɛ pɛpɛɛpɛyɛ a ɛwɔ nhyɛsoɔ mprɛte mmienu no ntam no yɛ kɛseɛ sene mm 2; Wubetumi ahyɛ afã horow a ɛretu no agyirae.Afei disassemble ɔhyew exchanger no na hwɛ emu biara, san install anaa sesa gaskets ne mprɛte; Siesie anaa sesa mprɛte no afã horow a asɛe no.
ɔhyew a wɔde sesa nneɛma a ɛyɛ adwuma yiye no porɔw;
Nteaseɛ a ɛwɔ nhyɛsoɔ a ɛboro so a ɛba fam wɔ mprɛte mu Ɔhyew sesa:Nsuo kwan a ɛsiw ano: Nneɛma nketenkete a ɛyɛ den ne nneɛma a wɔde yɛ rust no gu mu, na ɛtew nsuo a ɛsen no ntwemu so; Nneɛma a wɔpaw no yiye: Nsu a ɛsen ankasa no boro bo a wɔayɛ no so koraa, anaasɛ mprɛte a ɛsen fa kwan no trɛw no ne medium no nhyia. Viscosity;Nsakraeɛ a ɛwɔ medium properties mu: Ɔhyew a ɛba fam no ma medium viscosity kɔ soro mpofirim, anaasɛ adeɛ a ɛsensɛn hɔ ma nsuo a ɛsene no yɛ kɛseɛ.
Sɛnea Wodi Nhyɛso a Ɛboro So Drop:Adjust Operating parameters na ama load shock so atew; Siesie inlet filter no na yi anim-awieɛ asiw ano; Reverse flush flow channel no ma ɛyi blockages nketewa;severe blockage of the flow channel: disassembly, cleaning and repair; Nneɛma a wɔpaw no yiye: Nnwinnade mu nsakrae ne parameter optimization; Installation ne Assembly haw ahorow: nteɛso ne san a wɔsan yɛ.
nsu a ɛtwetwe fi mu;
Nteaseɛ a ɛwɔ hɔ ma ɔhyeɛ a wɔde kɔ baabi foforɔ no so tew:Medium haw: Nsuo a ɛyɛ den no yɛ kɛseɛ dodo, ɛde scaling ba; Medium no kura soro-viscosity/coking-afɛfɛde afã horow; Adwumayɛ a ɛmfata: bere tenten-bere a ɛboro so-flow adwumayɛ, turbulence ahoɔden a ɛboro so, efĩ a ɛba ntɛmntɛm;
Pretreatment a enni hɔ: No high-precision filter (precision .<100 mesh) installed at the inlet, solid particles blocking the flow channel.
Ɔkwan a wɔfa so yɛ no: Yi efĩ fi hɔ denam ahotew so na ama ne tumi a ɛde kɔ ɔhyew mu ne beae a ɛsen no asan aba.
wosow ne dede a ɛnteɛ;
nea ɛde nsu a ɛtwetwe fi mu ba wɔ .Mprɛte mu ɔhyew sesa .:Plate a ɛsɛe: corrosion perforation (chloride pitting, intergranular corrosion), overheating cracking, ne freeze cracking.Seal huammɔdi: Nsɔano no sɛe kɛse anaasɛ ɛtwe ne ho fi ho, na ɛde kɔ cross- nsu a ɛsen no mu. Nneɛma a ɛne no hyia a enye: Mprɛte mu nneɛma no ne mfinimfini su no nhyia (sɛ nhwɛso no, wɔde dade a ɛnyɛ den 304 di dwuma de di chloride-a ɛwɔ nsɛm ho amanneɛbɔ so).
Akwan a wɔfa so sa yare: Yɛ nsakrae wɔ adwumayɛ ho nhyehyɛe mu na ama nsu a ɛwɔ nipadua no mu no so atew; mframa a wɔde siw ano na yi fi hɔ na ama nsu a ɛhaw adwene no afi hɔ; Hyɛ no den bere tiaa bi na ama wosow a ɛkɔ nipadua no mu no so atew;
mprɛte a ɛyɛ mmerɛw;
Nea ɛde mprɛte no nsɛe ba: Medium corrosion: Chloride ions sɛe passivation film (pitting corrosion), acid a ano yɛ den/strong alkali ma nnuru a ɛyɛ mmerɛw no yɛ ntɛmntɛm; Nneɛma ho haw: Mprɛte mu nneɛma no ne ade no nhyia (te sɛ dade a ɛnyɛ den 304 a wɔde bedi dwuma de ayɛ chloride-a ɛwɔ nsɛm ho amanneɛbɔ mu); Nneɛma a Atwa Yɛn Ho Ahyia: Bere a wɔagyae adwuma no akyi no, nneɛma a atwa yɛn ho ahyia a ɛyɛ nwini no kanyan oxidative corrosion, na nneɛma ahorow (carbon steel support + stainless steel plate) yɛ galvanic cell, na ɛde electrochemical corrosion ba; Adeyɛ mu sintɔ: Ɔhyew a wɔmfa nyɛ adwuma yiye wɔ mprɛte welding akyi, na ɛma aburow hye (intergranular corrosion) no nsɛe a ɛyɛ mmerɛw no so tew.
Anti-Aduru a wɔde sa nsunsu: Hohoro ɔfasu no ho ma ɛnyɛ mmerɛw, siesie mpɔtam hɔ ma nsu a ɛbɛsɛe no yiye, na fa mprɛte no si ananmu ma nsu a ɛbɛsɛe kɛse.