RU94039794A - Method and facility for cooling enclosed location - Google Patents

Method and facility for cooling enclosed location

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Publication number
RU94039794A
RU94039794A RU94039794/06A RU94039794A RU94039794A RU 94039794 A RU94039794 A RU 94039794A RU 94039794/06 A RU94039794/06 A RU 94039794/06A RU 94039794 A RU94039794 A RU 94039794A RU 94039794 A RU94039794 A RU 94039794A
Authority
RU
Russia
Prior art keywords
air
atmosphere
cooling
electric drive
cooled
Prior art date
Application number
RU94039794/06A
Other languages
Russian (ru)
Other versions
RU2075014C1 (en
Inventor
Ю.В. Чижиков
А.Н. Брагин
В.П. Мурашко
Original Assignee
Научно-технический центр "АВИС"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Научно-технический центр "АВИС" filed Critical Научно-технический центр "АВИС"
Priority to RU94039794A priority Critical patent/RU2075014C1/en
Publication of RU94039794A publication Critical patent/RU94039794A/en
Application granted granted Critical
Publication of RU2075014C1 publication Critical patent/RU2075014C1/en

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  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)

Abstract

FIELD: cooling enclosed locations (crane and electrified transport cabs) where air is to be cooled. SUBSTANCE: method involves cooling enclosed location by air intake from atmosphere, its expansion, followed by heat transfer with air passing through enclosed space, compression of cooling air, and its discharge into the atmosphere by means of electric drive; expansion is made at 45-65 kPa, heat transfer during cooling air discharge is 1.5-3 times lower than air discharge through space being cooled. Facility implementing this method has turbocompressor with electric drive whose turbine input communicates with atmosphere and output communicates through intermediate cooler with compressor input; compressor output also communicates with atmosphere; intermediate cooler is double-space regenerating heat exchanger whose second space is connected to location being cooled forming closed circulating air loop incorporating fan and filter placed in tandem. Turbocompressor and electric drive are mounted on common shaft with overhanging wheels; electric drive is built up of contactless valve-type air-cooled motor provided with static frequency changer. EFFECT: improved economic efficiency and operating reliability, reduced space requirement.

Claims (1)

Область использования: холодильная техника, в частности для охлаждения замкнутых объектов (кабин кранов, электрического транспорта и т.п.), в которых охлаждающей средой является воздух. В способе осуществляют охлаждение замкнутого объема путем забора воздуха из атмосферы, его детандирование, последующий теплообмен с воздухом, проходящим через замкнутый объем, и компримирование охлаждающего воздуха с выбросом его в атмосферу с помощью электропривода, детандирование ведут до 45 - 65 кПа, теплообмен при расходе охлаждающего воздуха в 1,5 - 3 раза меньше расхода воздуха охлаждаемого объекта. Техничский результат: повышение экономичности и эксплуатационной надежности. Установка содержит турбодетандер-компрессор с электроприводом, вход турбины которого соединен с атмосферой, а выход через промежуточный охладитель сообщен с входом компрессора, причем выход комперссора соединен также с атмосферой, промежуточный охладитель выполнен в виде двухполостного рекуперативного теплообменника, вторая полость которого подключена к охлаждаемоу объекту, образуя при этом замкнутый воздушный циркуляционный контур, в котором последовательно установлены вентилятор и фильтр. Турбодетандер-компрессор размещен на общем валу с электроприводом при консольном расположении его колес, при этом электропривод выполнен в виде бесконтактного вентильного электродвигателя с воздушным охлаждением и снабжен статическим преобразователем частоты электрического тока. Технический результат: повышение экономичности и эксплуатационной надежности с одновременным обеспечением компактности.Field of use: refrigeration equipment, in particular for cooling closed objects (crane cabins, electric vehicles, etc.), in which the cooling medium is air. The method performs cooling of a closed volume by drawing air from the atmosphere, expanding it, subsequent heat exchange with air passing through the closed volume, and compressing the cooling air with its emission into the atmosphere using an electric drive, expanding to 45–65 kPa, heat exchange at a cooling rate air 1.5 - 3 times less than the air flow rate of the cooled object. Technical result: increased efficiency and operational reliability. The installation contains a turboexpander-compressor with an electric drive, the turbine inlet of which is connected to the atmosphere, and the output through the intercooler is in communication with the compressor inlet, and the output of the compressor is also connected to the atmosphere, the intercooler is made in the form of a two-cavity recuperative heat exchanger, the second cavity of which is connected to the object being cooled, thus forming a closed air circulation circuit in which a fan and a filter are installed in series. The turbo-expander compressor is located on a common shaft with an electric drive with a cantilever arrangement of its wheels, while the electric drive is made in the form of a contactless valve motor with air cooling and is equipped with a static frequency converter of electric current. Effect: increase efficiency and operational reliability while ensuring compactness.
RU94039794A 1994-11-10 1994-11-10 Method of cooling closed object and plant for cooling such object RU2075014C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94039794A RU2075014C1 (en) 1994-11-10 1994-11-10 Method of cooling closed object and plant for cooling such object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94039794A RU2075014C1 (en) 1994-11-10 1994-11-10 Method of cooling closed object and plant for cooling such object

Publications (2)

Publication Number Publication Date
RU94039794A true RU94039794A (en) 1996-11-10
RU2075014C1 RU2075014C1 (en) 1997-03-10

Family

ID=20162036

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94039794A RU2075014C1 (en) 1994-11-10 1994-11-10 Method of cooling closed object and plant for cooling such object

Country Status (1)

Country Link
RU (1) RU2075014C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU175135U1 (en) * 2016-10-07 2017-11-22 Общество с ограниченной ответственностью "ДЕТА Инжиниринг" COMPRESSOR AND DETANDER UNIT
RU2716780C1 (en) * 2019-07-29 2020-03-16 Юрий Иванович Духанин Turboexpander
RU202159U1 (en) * 2020-07-06 2021-02-04 Акционерное общество Производственно-конструкторское объединение "Теплообменник" (АО ПКО "Теплообменник") ELECTRIC RECIRCULATION FAN

Also Published As

Publication number Publication date
RU2075014C1 (en) 1997-03-10

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