Kuiswa uye kuenderana kwechiller yekuwedzera valve

1. Kufananidza

Zvinoenderana nekurasikirwa kwekupokana kweR, Q0, t0, tk, pombi yemvura uye zvikamu zvevharuvhu, matanho ndeaya:

Sarudza mutsauko wekumanikidza pakati pemigumo miviri yevhavha yekuwedzera;

Sarudza chimiro chevhavha;

Sarudza muenzaniso uye tsanangudzo yevhavha.

1. Sarudza mutsauko wekumanikidza pakati pemigumo miviri yevharuvhu:

ΔP=PK-ΣΔPi-Po(KPa)

Muchidimbu: PK―― condensing pressure, KPa, ΣΔPi――is ΔP1+ΔP2+ΔP3+ΔP4 (ΔP1 ndiko kurashikirwa kwepombi yemvura; ΔP2 ndiko kurashikirwa kwegokora, valve, nezvimwewo; ΔP3 is kusimuka kwepombi yemvura Kurasikirwa, ΔP3 = ρɡh; ΔP4 ndiko kurashikirwa kwemusoro wekuparadzira uye capillary inoparadzira, kazhinji 0.5bar imwe neimwe); Po-evaporating pressure, KPa.

2. Sarudza chimiro chevhavha:

Kusarudzwa kwechiyero chemukati kana kunze kwekunze kunoenderana nekudonha kwekumanikidza mu evaporator. Kune iyo R22 system, kana kudonha kwemhepo kunodarika kunoenderana tembiricha ye evaporation ne 1 ° C, iyo yekunze yakaenzana yevhavha yekuwedzera inopisa inofanira kushandiswa.

3. Sarudza muenzaniso uye tsanangudzo yevhavha:

Maererano neQ0 uye yakaverengwa ΔP isati yasvika uye shure kwevhavha yekuwedzera uye tembiricha ye evaporation t0, chengetedza modhi yevhavha uye simba revhavha kubva patafura yakakodzera. Kuti kurerutsa maitiro ekufananidza, anogona zvakare kuitwa zvinoenderana nedhizaini tekinoroji matanho. Iyo modhi uye zvirevo zveiyo iripo thermal expansion valve inofanira kunge yakavakirwa pamhando yefiriji inoshandiswa mufiriji system, huwandu hwekupisa kwekushisa uye ukuru hwehuremu hwekupisa hweevaporator. Sarudzo inofanirwa kuzadzisa zvinotevera zvinodiwa:

(1) Kukwanisa kwevhavha yakasarudzwa yekuwedzera kwekushisa ndeye 20-30% yakakura kudarika iyo chaiyo inopisa inopisa ye evaporator;

(2) Kune mafiriji masisitimu asina inotonhorera vhoriyamu yekudzora vhoriyamu yemvura kana tembiricha yemvura inotonhorera yakaderera munguva yechando, pakusarudza vheji yekuwedzera inopisa, huwandu hwevhavha hunofanira kunge huri 70-80% yakakura kupfuura iyo evaporator mutoro, asi iyo yakawanda haifaniri kudarika 2 ye evaporator heat load. Nguva;

(3) Paunenge uchisarudza vheji yekuwedzera inopisa, kudonhedza kwepombi yekupa mvura kunofanirwa kuverengerwa kuti iwane mutsauko wekumanikidza pamberi uye mushure mevharuvhu, uye ipapo kutsanangurwa kwevhavha yekuwedzera yekupisa kunofanirwa kutariswa zvinoenderana nekuverenga kwevhavhavha yekuwedzera. tafura yekugona yakapihwa nemugadziri.

Chechipiri, kuiswa

1. Tarisa uone kana iri muchimiro chakanaka usati waiswa, kunyanya chikamu chetembiricha inonzwa michina;

2. Nzvimbo yekuisa inofanira kuva pedyo ne evaporator, uye muviri wevhavha unofanirwa kuiswa vertically, kwete kurerekera kana kumusoro;

3. Paunenge uchiisa, chenjerera kuchengetedza mvura mumhepo inonzwa tembiricha mubhegi inonzwa tembiricha nguva dzose, saka bhegi rinonzwa tembiricha rinofanira kuiswa rakaderera pane muviri wevharuvhu;

4. Sensor yetembiricha inofanirwa kuiswa pahorizontal kudzoka pombi yekubuda kweevaporator zvakanyanya sezvinobvira, uye inofanira kazhinji kuva inodarika 1.5m kubva pachiteshi chekukweva checompressor;

5. Bhegi rekuona tembiricha harifanire kuiswa papombi rine mhepo;

6. Kana panobuda evaporator iine gasi-mvura inochinja, iyo tembiricha inonzwa pasuru kazhinji iri pakubuda kweevaporator, ndiko kuti, pamberi pekupisa kupisa;

7. Iyo tembiricha inonzwa girobhu inowanzoiswa pane inodzoka pombi ye evaporator uye yakaputirwa zvakasimba kumadziro epombi. Nzvimbo yekuonana inofanira kucheneswa oxide scale, ichiratidza ruvara rwesimbi;

8. Kana iyo dhayamita yepombi yemhepo inodzoka isingasviki 25mm, bhegi rinonzwa tembiricha rinogona kusungirirwa kumusoro kwepombi yemhepo inodzoka; apo dhayamita yakakura kudarika 25mm, inogona kusungirirwa pa 45 ° yerutivi rwezasi rwepombi yemhepo inodzoka kudzivirira zvinhu zvakadai sekuunganidza mafuta pasi pepombi kubva pakukanganisa kunzwa. Mazwi chaiwo egirobhu rekushisa.

Chetatu, kugadzirisa

1. Seta thermometer panobuda evaporator kana shandisa suction pressure kuti utarise dhigirii yekupisa kukuru;

2. Chiyero chepamusoro-soro chakanyanya kuduku (mvura yemvura yakakura zvikuru), uye tsvimbo inogadzirisa inotenderera hafu yekutendeuka kana imwe kutenderera kwewachi (ndiko kuti, kuwedzera simba rechitubu uye kuderedza kuvhurika kwevhavha), apo firiji inoyerera inoderera; tambo yetsvimbo inotenderera inotenderera kamwechete Nhamba yekutendeuka haifaniri kunge yakawandisa (tambo yekugadzirisa tsvimbo inotenderera imwe chete, iyo inopisa inopisa inoshanduka inenge 1-2 ℃), mushure mekugadzirisa kwakawanda, kusvikira zvinodiwa;

3. Empirical kugadzirisa nzira: Shandura screw yetsvimbo yekugadzirisa kuti uchinje kuvhura kwevhavha, kuitira kuti chando kana dova zvigadzire kunze kwepombi yekudzoka ye evaporator. Kune firiji mudziyo ine evaporation tembiricha iri pasi pe 0 madhigirii, kana ukaibata nemaoko ako mushure mechando, unenge uine chando chekunzwa kwekunamatira maoko ako. Panguva ino, dhigirii rekuvhura rakakodzera; kune tembiricha yekubuda pamusoro pe 0 madhigirii, iyo condensation inogona kunzi Situation kutonga.