Kana zvasvika pakuyedzwa kwekubuda kwemvura mupombi ye vacuum insulated, hapana chinokunda kuyedzwa kwekubuda kwemhepo kwehelium mass spectrometer. Nzira iyi inonzwisisika zvekuti inogona kuona kunyange kudonha kudiki-diki—kusvika pa 5×10⁻¹³ mbar·L/s. Hatigumiri ipapo, zvakadaro. Tinotsigira izvi nekuyedzwa kwekukwira kwemhepo, saka tinogona kuona kuti vacuum inodonha nekukurumidza sei nekufamba kwenguva. Nenzira iyi, tinogona kuona kudonha kwemvura uye kutarisa kusimba kwehurongwa hwese panguva imwe chete. Kunyange zvakadaro, kuongorora kuri nyore kunowanzo tanga: kungotsvaga icing pajaketi rekunze. Munhu wese anoshanda anofanira kuziva kuti chando chinogona kuva chiratidzo chekunyevera. Uye kune masisitimu ane pressurized, kuona kudonha kwemvura mu ultrasonic kunobatsira. Kunogona kutora kudonha kwemvura kubva kure nemamita makumi mashanu.
KuHL Cryogenics, tinoshandisa nzira idzi dzese, tichinyatsotevedzera mitemo yeASME, CE, uye ISO. Ingave iriPipe yeVacuum Insulated, aHosipaipi Inochinjika yeVacuum, kana Mini Tank, chigadzirwa chega chega chinosiya nzvimbo yedu ichizadzisa zvinodiwa zvakasimba zvekusunga mvura, chakagadzirira kushandiswa chero kupi zvako pasi rose.
Kutamiswa kwemvura inoyerera ne cryogenic hakuregereri zvikanganiso. Funga nezvazvo: uri kushandisa liquid nitrogen pa -196°C kana LNG pa -162°C kuburikidza nepaipi apo mhepo iri kunze iri tembiricha yemukamuri. Mukana wetembiricha wakakura—kutopfuura 250°C. Kana gomba rakavhurika mu vacuum layer, mweya unopinda. Kamwe kamwe, mamorekuru emhepo iwayo anoshanduka kuita mabhiriji madiki ekupisa, achiparadza insulation. Kupisa kunobuda, chigadzirwa chinofashaira nekukurumidza, uye izvozvo zvinodhura—kunyanya munzvimbo dzeLNG kuSoutheast Asia, uko spool imwe chete isina kushanda inogona kutambisa zviuru zvemadhora echigadzirwa zuva rega rega.
Asi njodzi dziripo dzakadzika kupfuura mari. European Industrial Gases Association yakanyora zviitiko apo kudonha kwemukati mumatangi akavharwa ne vacuum kwakakonzera njodzi. Fungidzira izvi: kuputika kwekuneta kunoumbwa mumuchina we weld, cryogenic liquid inopinda munzvimbo ye vacuum, uye jekete rekunze rinotonhora zvekuti rinotanga kupwanyika. Parinozotyoka, zvidimbu zvesimbi zvinobuda nesimba rinouraya. Kutevedzana kwezviitiko nguva dzose kwakafanana uye nguva dzose kune njodzi. Kuona matambudziko aya nekukurumidza hakusi kungonakidzwa chete - zvakakosha kuti pave nekuchengetedzwa.
Zviri Mukati
1.Nzira 1 ne2: Kuongorora Zvinoonekwa uye Kuona Icing
2.Nzira 3: Kuyedzwa kweHelium Mass Spectrometer Leak Testing
3.Nzira yechina: Kuonekwa kweUltrasonic Leak
4.Dambudziko reUinjiniya: Kuchengetedza Kuvimbika kweVacuum
Nzira 1 ne2: Kuongorora Zvinoonekwa uye Kuona Icing
Haudi michina yepamusoro-soro yekuona zviri nyore uye zvakavimbika—vanhu vane hunyanzvi chete vanoziva zvekutsvaga.Pipe yeVacuum InsulatedKana Mini Tank ikarasikirwa nechinhu chinodziisa mvura, nzvimbo yakatenderedza mvura inodonha inotonhora nekukurumidza. Inotonhora zvekuti hunyoro hunobva mumhepo hunodzika, hunooma, uye hunogadzira mavanga echando anooneka pajaketi rekunze. Izvozvo zvinoonekwa pachena, kunyanya pedyo nepaipi yasara patembiricha yemumba.
Tinogara tichiratidza vatengi vedu maitiro ekuita izvi nguva dzose. Vanotarisa pane zvinoonekwa: welds, flanges, mavharuvhu, uye zvinobatanidzwa. Kana munhu akaona chando kana chando kunze kwejaketi—pasina kana mvura yabuda—inongoerekana yaonekwa. Izvi zvinoreva kuti mira, ridza alarm, uye tanga kuongorora zvizere. Maitiro aya akareruka akamisa zviitiko zvakawanda zvisati zvawedzera. Izvi zvinonyanya kuitika mumabasa egasi remaindasitiri eEurope uye mafekitori esemiconductor ekuEast Asia, uko kuva neLN₂ inogara iripo hazvigone kutaurwa.
Kuyedzwa kwekukwira kwesimba remhepo kunokuudza kana vacuum iri mukati me cryogenic system iri kuramba iripo, asi hakukuratidzi kuti mvura iri kubuda iri kupi. Maitiro acho ari nyore: vhara vacuum annulus, batanidza vacuum gauge yakagadzikwa, uye tarisa kuti kumanikidzwa kunochinja sei nekufamba kwenguva.
NeVacuum Insulated Valves kana Phase Separators, tinowanzoita bvunzo iyi kwemaawa makumi maviri nemana, tichitanga nekumanikidzwa kuri pasi pe1 × 10⁻³ Pa. Kana kumanikidzwa kukakwira kupfuura muganho wakatarwa—uyo unoratidzwa neISO 20486 kana ASTM E1603—ihwohwo humbowo hwekuti pane kubuda kwemvura kana kuti mweya wakawanda unobva mukati. Bvunzo iyi inonzwisisika—kusvika pa1 × 10⁻¹² Pa·m³/s—saka inokwanisa kushanda nesimba, kunyangwe kumapurojekiti ehydrogen kuMiddle East ane mwero wekubuda kwemvura wakanyanya kuoma.
Nzira 3: Kuyedzwa kweHelium Mass Spectrometer Leak Testing
Kuyedzwa kwekubuda kweHelium mass spectrometer kunoratidza kuti ndiyo nzira yakanakisisa yekuwana nekuyera kubuda kwemvura mumasisitimu anodzivirirwa ne vacuum. Tinovimba nehelium nechikonzero chiri nyore: ndiyo molecule diki yegesi isina simba. Inopinda nepakati pemvura diki isingagoni kusvika kune mamwe magasi, asi haimboiti zvinhu nemidziyo kana kukanganisa mvura inoyerera.
Heino mashandiro anoita maitiro acho. Tinotanga nekudhonza vacuum mu annulus, tichichengeta mass spectrometer yakabatirirwa pa vacuum port. Tobva tatanga ne helium pfupi, tichiipfapfaidza panzvimbo dzese dzatinofungidzira kuti dziripo—welds, flanges, joints, uye connection points paPipe yeVacuum Insulated, Hosipaipi Inochinjika, uye mavharuvhu akabatana. Kana paine kudonha kudiki kwazvo, helium inoiwana. Gasi rinopinda munzvimbo inobuda mhepo, spectrometer inorifemba, uye ipapo ipapo inozivisa alarm.
Kubuda kwemvura mukati kunoda nzira yakasiyana. Pane kupfapfaidza, tinoisa helium mupombi yemukati, tichiidzvanya. Kana paine ikabuda nepaburi risingaonekwe ichipinda mu vacuum annulus, detector inotora chiratidzo ipapo ipapo. Nekuchinja pakati penzira iyi ye "spray" neye "pressurization", hatisiyi nzira isina kutariswa - mukati kana kunze.
Tinogara tichitevedzera mitemo yakasimba yeASME Standard V, Article 10, uye Appendix IV naV. Maitiro aya anotibvumira kuona kudonha kwemvura kusvika pa5×10⁻¹³ mbar·L/s—danho diki rinogona kuenzaniswa nedzimwe nzira.
Nzira yechina: Kuonekwa kweUltrasonic Leak
Kuonekwa kweUltrasonic kunova chishandiso chinoshanda chekutevera kuyedzwa kwehelium mukuongororwa nekukurumidza kwemasisitimu ane cryogenic pressure. Gasi rinobuda musystem ine pressure rinoburitsa ultrasonic acoustic emissions nekuda kwekuyerera kwemhepo kwakashata. Saka, vachishandisa ultrasound detector inotakurika, mainjiniya vanogona kuona kubuda kwemvura mumapaipi uye kunyangwe muma assemblies akaomarara akadai seVacuum Insulated Flexible Hose nema cryogenic hoses pasina kukanganisa mashandiro esystem.
Nzira iyi inonyanya kubatsira pakuona maburi ari kubuda mumidziyo inoda kushanda nguva dzose, senge ayo ane chekuita nemidziyo yeLNG kana mafekitori egasi emaindasitiri. Matekiniki anosvika mamita makumi mashanu kubva panzvimbo inobuda maburi anogona kuona nzvimbo inobuda maburi mumidziyo, zvichiita kuti ive bvunzo inokurumidza, asi isinganyanyi kurwadza kupfuura helium mass spectrometry.
Zvisinei, kuona kubuda kwemvura hakusi kuguma kwenyaya - kudzivirira chero kubuda kwemvura ndicho chinangwa cheinjiniya. HL Cryogenics'Pipe yeVacuum Insulateduye magadzirirwo emaMini Tanks anosanganisira matanho akawanda ekudzivirira kuputsika kwevacuum.
Chinhu chikuru cheHL Cryogenics' vacuum systems ndechekutiSisitimu yeDynamic Vacuum Pombi, iyo inovimbisa kuchengetedza kusimba kwevacuum panguva dzese dzekushanda kwemidziyo. Kusiyana nemaitiro echinyakare evacuum ayo anotambura nekuora zvishoma nezvishoma kwevacuum nekuda kwekubuda kwegasi mukati memidziyo, sisitimu yedu inogara ichibvisa magasi akasara kubva mu annulus, ichichengetedza kushanda kwe vacuum insulation pasi pe 1 × 10⁻³ Pa. Kugadzirisa kwakasimba kunowedzera hupenyu hwemidziyo.
Kusarudza zvinhu zvakakodzera kwakakoshawo. Tinoshandisa simbi dzisina kusimba dzinoshandiswa chete (304L ne316L), dzinovimbisa kusimba uye kuramba ngura pakupisa kwe -269°C. Maweld edu ese akagadzirwa zvinoenderana nezvinodiwa neASME Section IX uye imwe neimwe inoongororwa kuburikidza ne x-ray kana dye-penetrant bvunzo isati yaitwa. Zvigadzirwa zvedu zvakatenderwa neASME, CE neISO, izvo zvinoita kuti tikwanise kugadzira zvigadzirwa zvinoenderana nezvinodiwa nenyika - kungave kuri kutevedzera PED yemisika yeEurope, ASME B31.3 yeAmerican LNG terminals, kana GB/T 18442 yeChina industrial gas.
Kubatana
Funga nezvepurojekiti ichangobva kuitwa muchiteshi chekugadzirisa gasi reLNG kuSoutheast Asia. Kwaiva nemamita anopfuura mazana maviri ePipe yeVacuum Insulated, mavharuvhu akati wandei eVacuum Insulated Valve, uye akati wandeiHosipaipi Inochinjika yeVacuumZvaifanira kuiswa kubatanidza zvinhu kuti zvikwanise kutamiswa kubva kugungwa kuenda kumahombekombe. Danho rekutanga rekuona kudonha kwemvura raive kuyedzwa kwehelium mass spectrometer yekubatanidza zvese zvinoshandiswa muworkshop yedu, michina isati yaendeswa kunzvimbo yacho.
Danho rechipiri raive rekuwedzera kuyedza panzvimbo uchishandisa bvunzo yehelium mass spectrometer uye bvunzo yeultrasonic. Munguva yekupedzisira, mainjiniya vakawana chiratidzo chisingawanzoitika kubva pakubatanidza flange, icho chakanga chaongororwa nemaziso kare. Kuyedzwa kweHelium kwakaratidza kudonha kwemvura pasi pe1 × 10⁻⁸ mbar·L/s, izvo zvaizoderedza mashandiro ekudzivirira kwevacuum mukati memwedzi mishoma yakatevera yebasa. Mushure mekunge tagadzirisa chisimbiso cheflange uye tadzokorora bvunzo, kuoma kwemvura kwakasimbiswa zvinobudirira. Iye zvino, terminal inoshanda nguva dzose kwemakore matatu, pasina kuora kwevacuum.
Saka, kuonekwa kwekudonha kwemvura mumapombi ane vacuum insulated hakusi tekinoroji imwe chete, asi maitiro akaoma einjiniya anosanganisa kuongorora kwemaziso, bvunzo yekukwira kwepressure, bvunzo yehelium mass spectrometer uye kuongorora kwe ultrasound.
Maitiro ese aya ekuyedza anobatanidzwa muQA procedure paHL Cryogenics, uye nokudaro esePipe yeVacuum Insulated, Hosipaipi Inochinjika yeVacuum, Vharuvhu Inoputirwa neVacuum,Kuparadzaniswa kweVacuum Insulated Phaser, uye Mini Tank yatinopa inosangana nemazinga epamusoro-soro epasi rose emhando yepamusoro. Kubva kuchiteshi cheLNG kuSoutheast Asia kusvika kufekitari yesemiconductor kuEast Asia, kubva kufekitari yemagasi emaindasitiri kuEurope kusvika kufekitari yehydrogen kuMiddle East—chero chirongwa chaunacho, mainjiniya edu ane hunyanzvi uye hunyanzvi (ASME, CE, uye ISO)—kuti akupe masisitimu asingadonhedze mvura uye emhando yepamusoro ecryogenic.
Taura neHL Cryogenics izvozvi utiudze zvinodiwa neprojekiti yako panyaya yekuona kudonha kwemvura. Chikwata chedu cheinjiniya chichagadzira nzira inodiwa yekuongorora kudonha kwemvura inobuda nekuda kwesystem yako ye cryogenic chete!
●Mibvunzo Inowanzo bvunzwa
Kubva muna 1992, HL Cryogenics yave nyanzvi mukugadzira nekugadzira masisitimu emapaipi e cryogenic ane vacuum yakawanda uye michina yekutsigira yakafanana, yakagadzirirwa kusangana nezvinodiwa nevatengi vakasiyana-siyana. Tine zvitupa zveASME, CE, uye ISO 9001, uye takapa zvigadzirwa nemasevhisi kumakambani mazhinji anozivikanwa epasi rose. Chikwata chedu chakavimbika, chine mutoro, uye chakazvipira kuita basa rakanaka mupurojekiti yega yega yatinoita.
Pombi yeVacuum Insulated/Jekete
Hosipu Inochinjika Yekuputira/Yakaputirwa Nejekete
Chinoparadzanisa Phase / Vapor Vent
Vharuvhu Yekudzima Yakaputirwa (Pneumatic)
Vharuvhu Yekutarisa Yakaputirwa neVacuum
Vacuum Insulated Regulating Valve
Zvinobatanidza zveVacuum Insulated zveMabhokisi Anotonhora neMakontena
Masisitimu Ekutonhodza eMBE Liquid Nitrogen
Mimwe michina yekutsigira cryogenic ine chekuita nemapombi eVI — inosanganisira asi kwete kungogumira kumavharuvhu ekudzivirira kuchengetedzeka, magauge emvura, mathermometer, magauge epressure, magauge evacuum, uye mabhokisi emagetsi ekudzora.
Tinofara kugamuchira maodha ehukuru hwese — kubva kumayuniti rimwe chete kusvika kumapurojekiti makuru.
Pipe yeHL Cryogenics' Vacuum Insulated (VIP) inogadzirwa zvichienderana neASME B31.3 Pressure Piping Code seyakajairika.
HL Cryogenics ikambani inogadzira michina yekubvisa tsvina, ichitsvaga zvinhu zvese zvakagadzirwa kubva kuvatengesi vane hunyanzvi chete. Tinogona kutenga zvinhu zvinoenderana nezvinodiwa nevatengi. Zvinhu zvatinosarudza zvinosanganisira ASTM/ASME 300 Stainless Steel ine mishonga yepamusoro yakaita seacid pickling, mechanical polishing, bright annealing, uye electro polishing.
Kukura uye kumanikidzwa kwepombi yemukati zvinosarudzwa zvichienderana nezvinodiwa nemutengi. Kukura kwepombi yekunze kunotevera zvakatarwa neHL Cryogenics, kunze kwekunge zvataurwa neimwe nzira nemutengi.
Kana tichienzanisa nemidziyo yemagetsi inoputira zvinhu, sisitimu ye "static vacuum" inopa insulation yepamusoro yekupisa, ichideredza kurasikirwa kwegasi kune vatengi. Inodhurawo zvishoma pane sisitimu ye "dynamic VI", ichideredza mari yekutanga inodiwa kumapurojekiti.
●Zvinyorwa Zvakabatana
Nguva yekutumira: Chikumi-29-2026
