Nhungamiro dzeKuisa uye Kuchengeta Yakapfava-Sealed Knife Gate Mavhavha

Iyo yakapfava-yakavharwabanga gedhi vharafuivharuvhu inoshandisa chisimbiso chakagadzirwa ne elastic material kudzora kuyerera kwemvura kuburikidza nekufamba kwegedhi. Iyo inoratidzirwa nekuita kwakanaka kwekuisa chisimbiso, kuvhura kudiki uye kuvhara torque, uye hupenyu hurefu hwebasa. Ichi chinyorwa chinozivisa kusarudzwa kwezvinhu, kurudziro yekuchengetedza, matanho ekuisa uye kungwarira kweiyo yakapfava-yakavharwa banga regedhi vharafu zvakadzama.

I. Kusarudzwa kwezvinhu zvemavharuvhu emagedhi ebanga akapfava

1.1 Valve muviri zvinhu

Kusarudzwa kwezvinhu zvemuviri wevhavha kunofanirwa kufunga nezvenzvimbo yekushanda uye yepakati maitiro evhavha. Zvishandiso zvinowanzoshandiswa zvinosanganisira simbi yakakandwa, ductile iron, carbon steel, Stainless steel, etc. Pamusoro pezvinopisa zvinopisa, zvinokurudzirwa kusarudza simbi isina tsvina kana plastiki-lined zvinhu.

1.2 Kuisa chisimbiso

Zvinyoro zvisimbiso zvinowanzobatanidza EPDM, NBR, PTFE, etc. EPDM inokodzera mvura inopisa, steam uye mamwe midhiya; NBR yakakodzera mafuta uye hydrocarbon media; PTFE ine yakanakisa corrosion kuramba uye yakanyanya tembiricha kuita.

1.3 Valve stem zvinhu

Iyo valve stem zvinhu inofanira kunge iine simba rakanaka uye kusagadzikana kwekuora. Zvinowanzoshandiswa zvinhu zvinosanganisira Stainless simbi uye alloy simbi. Nokuda kwekushisa kwepamusoro uye mamiriro ekudzvinyirira, zvinokurudzirwa kusarudza alloy steel.

II. Maintenance kurudziro kune yakapfava-yakavharwa banga magedhi mavharuvhu

2.1 Kuongororwa nguva dzose

Nguva dzose chengetedza kushanda kwechisimbiso uye kuzarura nekuvhara mamiriro evhavha, uye kubata chero kusakanganiswa panguva yakakodzera. Chengetedza zvakanyanya kutarisa kupfeka kwezvisimbiso uye uzvitsive kana zvichidiwa.

2.2 Kuchenesa nekuzora

Gara uchichenesa mukati uye kunze kwekunze kwevhavha kuti ugare wakachena. Kune mavharuvhu anogara achivhurwa uye akavharwa, girizi inofanirwa kuwedzerwa nguva nenguva kuti kuderedze kukwesha nekupfeka.

2.3 Anti-corrosion kurapwa

Kune mavharuvhu akazarurwa kumhepo, anti-corrosion kurapwa kunofanirwa kuitwa nguva nenguva kudzivirira kupera kwemuviri wevharuvhu uye hunde revharuvhu. Zvakajairwa anti-corrosion matanho anosanganisira kushandisa anti-ngura pendi uye electroplating.

III. Kuisa matanho uye chenjedzo kune yakapfava-yakavharwa banga magedhi mavharuvhu

3.1 Matanho ekuisa

1). Tarisa vharafu: Usati waiswa, tarisa kana modhi yevharuvhu, kutsanangurwa uye kumanikidza kuyerwa kunosangana nezvinodiwa zvekugadzira. Iva nechokwadi chokuti nzvimbo yekuvhara valve haina kukuvara.

2). Chenesa pombi: Ita shuwa kuti hapana welding slag, mafirita esimbi uye mamwe marara mupombi kudzivirira kukuvara kwezvisimbiso.
3). Isa vharafu: isa vharafu mupombi, gadzirisa flange nemabhoti, uye teerera kuomesa mabhaudhi diagonally kudzivirira kusaenzana kwesimba.
4). Gadzirisa vharuvhu: mushure mekuisa, vhura uye uvhare vharafu nemaoko kuti uve nechokwadi chekuvhura uye kuvhara pasina jamming.

3.2 Chengetedzo

- Kutungamira: Iyo yakapfava-yakavharwa banga yegedhi vharafu ine kutungamira. Paunenge uchiisa, teerera kune kutungamira kwekuyerera kwepakati kunoenderana nemuseve pane muviri wevharuvhu.

- Dzivirira pamusoro-torque: Paunenge uchivhura nekuvhara vharafu, usashandise simba rakawandisa kudzivirira kukuvadzwa kwechisimbiso uye tsinde yevharuvhu.

- Dzivisa tembiricha yakakwira: Dzivisa kuisa vharuvhu munzvimbo yakakwira tembiricha kudzivirira kuchembera uye kuparara kwechisimbiso.

- Antifreeze matanho: Munzvimbo dzinotonhora, antifreeze matanho anofanirwa kutorwa kudzivirira vharuvhu kubva kuchando.

Sechishandiso chakakosha chekudzora, kusarudzwa kwezvinhu, kuchengetedza uye kuiswa kwegedhi rebanga rakapfavavharafuzvinokanganisa zvakananga kushanda uye hupenyu hwevhavha. Kuburikidza nekusarudzwa kwezvinhu zvine musoro, kugadzirisa nguva dzose uye kuisirwa kwakaringana, kushandiswa kwekushandisa uye hupenyu hwevhavha yakapfava yakavharwa banga inogona kuvandudzwa. Ndinovimba zviri muchinyorwa ichi zvinogona kupa chirevo chinobatsira kune vashandisi.

References

1. GB/T 12232-2005 《Mavharuvhu eGeneral - Manual iron uye mavharuvhu egedhi remhangura》
2. JB/T 5300-2005 《Modhi yekugadzira vharafu》
3. HG/T 20592-2009 《Simbi pombi flange》
4. API 6D-2007 《Mavharuvhu epetroleum nemaindasitiri egasi chaiwo》