SU1090699A1 - Working fluid for throttle refrigerating systems - Google Patents

Working fluid for throttle refrigerating systems Download PDF

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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
Application number
SU823433262A
Other languages
Russian (ru)
Inventor
Георгий Константинович Лавренченко
Владимир Никитич Анисимов
Виктор Николаевич Валякин
Анатолий Вадимович Егоров
Original Assignee
Одесский Технологический Институт Холодильной Промышленности
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Priority to SU823433262A priority Critical patent/SU1090699A1/en
Application granted granted Critical
Publication of SU1090699A1 publication Critical patent/SU1090699A1/en

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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)

РАБОЧАЯ СМЕСЬ ДЛЯ ДРОССЕЛЬНЫХ РЕФРИЖЕРАТОРНЫХ СИСТЕМ, включающая тетрафторметан и углеводород, отличающаяся тем, что, ' с целью повышения энергетической эффективности, она в качестве углеводорода содержит изобутан при следующем соотношении компонентов, мол.WORKING MIXTURE FOR THROTTLE REFRIGERATOR SYSTEMS, including tetrafluoromethane and hydrocarbon, characterized in that, in order to increase energy efficiency, it contains isobutane as a hydrocarbon in the following ratio of components, mol. Тетрафторметан 4-96Tetrafluoromethane 4-96 Изобутан 4-96 спесь для ДРЬIsobutane 4-96 arrogance for DRI Ра5ачаяRa5achaya ί---------- fll——....... ί ---------- fll ——....... П Н___ P N ___ ί Й а η i ί Ya η i J I я! J i me! * * ί ί j j 5 - 5 - X X - - J δα pa J δα pa 2 δαρα' 2 δαρα ' J J J Sap J sap * *
SU „„1090699SU „„ 1090699 1 10906991 1090699
SU823433262A 1982-05-06 1982-05-06 Working fluid for throttle refrigerating systems SU1090699A1 (en)

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

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Application Number Title Priority Date Filing Date
SU823433262A SU1090699A1 (en) 1982-05-06 1982-05-06 Working fluid for throttle refrigerating systems

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SU (1) SU1090699A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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