SU1090699A1 - Working fluid for throttle refrigerating systems - Google Patents
Working fluid for throttle refrigerating systems Download PDFInfo
- Publication number
- SU1090699A1 SU1090699A1 SU823433262A SU3433262A SU1090699A1 SU 1090699 A1 SU1090699 A1 SU 1090699A1 SU 823433262 A SU823433262 A SU 823433262A SU 3433262 A SU3433262 A SU 3433262A SU 1090699 A1 SU1090699 A1 SU 1090699A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- working fluid
- throttle
- refrigerating systems
- mixture
- isobutane
- Prior art date
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Description
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Изобретение относитс к холодильн технике и может быть использовано дл получени рабочих смесей дл дроссел ных рефрижераторных систем. Известна рабоча смесь дл холодильных установок, включающа 20-25% тетрафторметана (R14), 30-62% пропилена и изобутан Г i Однако данна смесь обладает недостаточной холодопроизводительность . Наиболее близкой по технической .сущности и достигаемому результату к предлагаемой вл етс рабоча смес дл дроссельных рефрижераторных систем , включающа (5-95%) тетрафторметана и углеводород (пропан) f23. Недостатком известной смеси вл етс низка энергетическа эффективность . Целью изобретени вл етс повышение энергетической эффективности смеси. Поставленна цель достигаетс тем, что. рабоча смесь дл дроссельных рефрижераторных систем, включающа тетрафторметан и углеводород, в качестве углеводорода содержит . зобутан при следующем соотношении компонентов, мол,%: 99 Пример. Смесь готов т смешением компонентов в указанных соотношени х . Дл этого в чистые, отвакуумированные и заранее взвешенные баллоны набирают по массе заданные количества предварительно очищенных R14 и изобутана. После этого каждый из баллонов присоедин ют к стенду и посредством охлаждени в жидком азоте провод т переконденсацию компонентов в раствор дроссельной системы . Затем баллоны с незначительными остатками чистых R14 и изобутана взвешивают дл уточнени концентрации приготовленной рабочей смеси . На чертеже представлена диаграмма фазовых превращений (обоснование интервалов концентраций). Внутри области, ограниченной кривой , температура кипени при посто нном давлении не зависит от состава смеси. При давлении обратного потока 0,13 МПа дроссельна система обеспечивает температуру 150 К в диапазоне мольных концентраций R14 4-96%. и изобутана 4-94%. Данные сопоставительного анализа дл смесей R14 иThe invention relates to a refrigeration appliance and can be used to produce working mixtures for throttle refrigeration systems. The known working mixture for refrigeration units is 20-25% tetrafluoromethane (R14), 30-62% propylene, and isobutane G i. However, this mixture has insufficient cooling capacity. The closest in technical essence and the achieved result to the proposed is a working mixture for choke refrigerated systems, including (5-95%) tetrafluoromethane and hydrocarbon (propane) f23. A disadvantage of the known mixture is low energy efficiency. The aim of the invention is to increase the energy efficiency of the mixture. The goal is achieved by the fact that. the working mixture for choke refrigerated systems, including tetrafluoromethane and hydrocarbon, contains as a hydrocarbon. gobutan in the following ratio of components, mol,%: 99 Example. The mixture is prepared by mixing the components in the indicated ratios. To do this, in clean, evacuated and pre-weighted cylinders, set by weight the specified amounts of pre-cleaned R14 and isobutane. After that, each of the cylinders is attached to the stand and, by cooling in liquid nitrogen, the components are recondensed into the solution of the throttle system. Cylinders with minor residues of pure R14 and isobutane are then weighed to clarify the concentration of the prepared working mixture. The drawing shows a diagram of phase transformations (justification of the concentration intervals). Within the region bounded by the curve, the boiling point at constant pressure does not depend on the composition of the mixture. At a return flow pressure of 0.13 MPa, the throttle system provides a temperature of 150 K in the range of molar concentrations of R14 4-96%. and isobutane 4-94%. Benchmarking data for mixtures of R14 and
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823433262A SU1090699A1 (en) | 1982-05-06 | 1982-05-06 | Working fluid for throttle refrigerating systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823433262A SU1090699A1 (en) | 1982-05-06 | 1982-05-06 | Working fluid for throttle refrigerating systems |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1090699A1 true SU1090699A1 (en) | 1984-05-07 |
Family
ID=21010142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU823433262A SU1090699A1 (en) | 1982-05-06 | 1982-05-06 | Working fluid for throttle refrigerating systems |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1090699A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360566A (en) * | 1992-11-06 | 1994-11-01 | Intermagnetics General Corporation | Hydrocarbon refrigerant for closed cycle refrigerant systems |
WO1995029210A1 (en) * | 1994-04-27 | 1995-11-02 | Sovmestnoe Predpriyatie 'inertek' | Working mixture for refrigeration machinery |
US6182666B1 (en) | 1996-12-26 | 2001-02-06 | Cryogen, Inc. | Cryosurgical probe and method for uterine ablation |
US6270494B1 (en) | 1996-12-26 | 2001-08-07 | Cryogen, Inc. | Stretchable cryoprobe sheath |
US6530234B1 (en) | 1995-10-12 | 2003-03-11 | Cryogen, Inc. | Precooling system for Joule-Thomson probe |
-
1982
- 1982-05-06 SU SU823433262A patent/SU1090699A1/en active
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360566A (en) * | 1992-11-06 | 1994-11-01 | Intermagnetics General Corporation | Hydrocarbon refrigerant for closed cycle refrigerant systems |
WO1995029210A1 (en) * | 1994-04-27 | 1995-11-02 | Sovmestnoe Predpriyatie 'inertek' | Working mixture for refrigeration machinery |
US6530234B1 (en) | 1995-10-12 | 2003-03-11 | Cryogen, Inc. | Precooling system for Joule-Thomson probe |
US6182666B1 (en) | 1996-12-26 | 2001-02-06 | Cryogen, Inc. | Cryosurgical probe and method for uterine ablation |
US6193644B1 (en) | 1996-12-26 | 2001-02-27 | Cryogen, Inc. | Cryosurgical probe with sheath |
US6270494B1 (en) | 1996-12-26 | 2001-08-07 | Cryogen, Inc. | Stretchable cryoprobe sheath |
US6451012B2 (en) | 1996-12-26 | 2002-09-17 | Cryogen, Inc. | Cryosurgical method for endometrial ablation |
US6475212B2 (en) | 1996-12-26 | 2002-11-05 | Cryogen, Inc. | Cryosurgical probe with sheath |
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