Wɔawo valve sɛ adwinnade mfe mpempem pii ni

Valve no na ɛyɛ adwumayɛ adwinnade a wɔde di dwuma wɔ mframa ne nsu a wɔde kɔ baabi foforo na wɔhwɛ so a anyɛ yiye koraa no, ɛwɔ mfe apem abakɔsɛm.

Mprempren, wɔ nsuo afiri nhyehyɛeɛ mu no, regulating valve no ne control element, na n’adwuma titire ne sɛ ɛbɛtetew mfiri ne pipeline nhyehyɛeɛ no mu, ahwɛ nsuo a ɛsen no so, asiw backflow ano, asiesie na ayi nhyɛsoɔ no afiri mu. Esiane sɛ ɛho hia yiye sɛ wɔpaw regulating valve a ɛfata sen biara ma pipeline nhyehyɛe no nti, ɛho hia yiye nso sɛ wobɛte valve no su ne anammɔn ne nnyinaso a wobɛfa so apaw valve no ase.

Nhyɛso a wɔfrɛ no valve no

Nhyɛso a wɔfrɛ no valve no kyerɛ nhyehyɛe a wɔde ama nhyɛso a ɛfa mfiri ahoɔden a ɛwɔ piping afã horow no ho, kyerɛ sɛ, ɛyɛ adwumayɛ nhyɛso a wɔma ho kwan wɔ valve no mu wɔ ɔhyew a wɔakyerɛ no mu, a ɛne nneɛma a ɛwɔ valve no mu no wɔ abusuabɔ. Adwumayɛ nhyɛsoɔ no nyɛ pɛ, enti, nhyɛsoɔ a wɔfrɛ no no yɛ parameter a egyina nneɛma a ɛwɔ valve no mu so na ɛne adwumayɛ hyew a wɔma ho kwan ne adwumayɛ nhyɛsoɔ a ɛwɔ ade no mu no wɔ abusuabɔ.

Valve yɛ adwumayɛbea a ɛwɔ medium circulation system anaa pressure system mu, a wɔde sesa medium no nsuo anaa nhyɛsoɔ. Dwumadi afoforo bi ne sɛ wobɛdum anaa wobɛdan media, wobɛhwɛ nsu a ɛsen so, wobɛsesa nsɛm a ɛsen no kwan, wobɛsiw nsɛm ho amanneɛbɔ kwan a ɛbɛsan akɔ akyi, ne nhyɛso a wobɛhwɛ anaasɛ wobɛma mframa akɔ mu.

Wɔnam nsakrae a wɔyɛ wɔ baabi a valve no to mu no so na ɛyɛ saa dwumadi ahorow yi. Wobetumi de nsa anaa wɔayɛ nsakrae yi. Manual adwumayɛ nso ka adwumayɛ a wɔde nsa di drive no so. Wɔfrɛ valve ahorow a wɔde nsa yɛ adwuma no nsaano valves. Wɔfrɛ valve a ɛmma nsu nkɔ akyi no check valve; nea ɛhwɛ nhyɛso a ɛma ahotɔ so no, wɔfrɛ no ahobammɔ afiri anaa ahobammɔ afiri.

Ɛde besi ha no, valve adwuma no atumi ayɛ nneɛma ahorow a edi mũapon ano valve ahorow, globe valve, throttle valve, plug valve, ball valve, anyinam ahoɔden valve, diaphragm control valve, check valve, ahobammɔ valve, nhyɛso a ɛtew so valve, steam afiri ne ntɛmpɛ a ɛto mu valve. Valve nneɛma a ɛwɔ akuw 12, bɛboro 3000 mfonini, ne bɛboro 4000 nkyerɛkyerɛmu; adwumayɛ nhyɛsoɔ a ɛkyɛn so ne 600MPa, ne kɛseɛ nominal diameter yɛ 5350mm, adwumayɛ mu hyeɛ a ɛkyɛn so yɛ 1200°C, adwumayɛ mu hyew a ɛba fam koraa ne -196°C, na ade a wɔde di dwuma ne Nsu, nsuonwini, ngo, abɔde mu mframa, nneɛma a ɛyɛ den a ɛporɔw (te sɛ nitric acid a wɔahyɛ no den, sulfuric acid a ɛwɔ mfinimfini, ne nea ɛkeka ho).

Hwɛ yiye wɔ valve a wɔpaw no so:

1. Sɛnea ɛbɛyɛ a wɔbɛtew asase a ɛkata nsu afiri no mu dɔ so no, .nwansena valve nowɔtaa paw ma nsu afiri a ne kɛse yɛ kɛse no; ɔhaw titiriw a ɛwɔ ntontom valve no so ne sɛ ntontom mprɛte no gye nsu no fã pɔtee bi, na ɛma ti bi a ɛyera no yɛ kɛse;

2. Valve ahorow a wɔtaa de di dwuma no bi nenwansena valve ahorow, apon ano valve ahorow, ball valves ne plug valves, ne nea ɛkeka ho Ɛsɛ sɛ wosusuw valve ahorow a wɔde di dwuma wɔ nsuo a wɔde ma no mu wɔ paw no mu.

3. Ball valve ne plug valve a wɔde gu mu na wɔyɛ ho adwuma no yɛ den na ne bo yɛ den, na mpɛn pii no ɛfata ma paipu nketewa ne akɛse. Ball valve ne plug valve hwɛ mfaso a ɛwɔ apon biako valve, nsu nketewa a ɛsen resistance, ahotoso sealing, flexible adeyɛ, mmerɛw adwumayɛ ne nsiesie. Plɔg valve no nso wɔ mfaso a ɛte saa ara, nanso ɔfã a nsu fa mu no nyɛ kurukuruwa a edi mũ.

4. Sɛ ennya asase a wɔde kata so no mu dɔ so nkɛntɛnso kɛse a, bɔ mmɔden sɛ wobɛpaw apon ano valve; anyinam ahoɔden pon valve no sorokɔ a ne kɛse yɛ vertical gate valve no nya asase a ɛkata paipu no mu dɔ so nkɛntɛnso, na large-diameter horizontal gate valve no tenten ma beae a ɛda fam a pipeline no gye no yɛ kɛse na ɛka nhyehyɛe a ɛwɔ pipeline afoforo mu

5. Wɔ nnansa yi mfe mu no, esiane nkɔso a aba wɔ mfiridwuma a wɔde tow nneɛma mu nti, sɛ wɔde resin sand casting di dwuma a, ebetumi akwati anaasɛ ɛbɛtew mfiri a wɔde yɛ adwuma so, na ɛnam so atew ɛka so, enti ɛfata sɛ wɔhwehwɛ sɛnea ɛbɛyɛ yiye sɛ wɔde ball valves a wɔde di dwuma wɔ nsu afiri a ne kɛse yɛ kɛse mu. Ɛdefa demarcation line of caliber size ho no, ɛsɛ sɛ wosusuw ho na wɔkyekyɛ mu sɛnea tebea pɔtee no te.