SU1002754A1

SU1002754A1 - Vortex-type refrigerator

Info

Publication number: SU1002754A1
Application number: SU813297437A
Authority: SU
Inventors: Александр Дмитриевич Суслов; Александр Витальевич Мурашкин; Владимир Николаевич Михушкин; Юрий Александрович Новосельский; Владимир Николаевич Воробьев
Original assignee: Предприятие П/Я М-5703
Priority date: 1981-06-08
Filing date: 1981-06-08
Publication date: 1983-03-07

Description

(54)- ВИХРЕВОЙ ХОЛОДИЛЬНИК(54) - FRAG REFRIGERATOR

Изобретение относитс к xoлoдиль ной технике, в частности к установкам дл разделени газового потока на холодный и теплый с помощью вихревых труб.The invention relates to a cooling technique, in particular, to installations for dividing a gas stream into cold and warm using vortex tubes.

Известен вихревой холодильник, содержащий размещенные соосно одна в другой две вихревые трубы, внешн из которых подключена к источнику сжатого газа, а внутренн питаетс за счет подвода в ее сопловой аппарат гор чего периферийного потока повышенного давлени внешней вихревой трубы A vortex cooler is known that contains two vortex tubes coaxially placed one inside the other, externally connected to a source of compressed gas, and internally powered by supplying a peripheral flow of external vortex tube into its nozzle apparatus.

Недостатками этого холодильника вл ютс сложность конструктивного выполнени , нарушение вихревых потоков внешней вихревой трубы за счет размещени в камере энергетического разделени внутренней вихревой трубы, а также невозможность отвода тепла гор чего периферийного потока, питающего внутреннюю вихревую трубу.The disadvantages of this refrigerator are the complexity of the design, the violation of the vortex flow of the outer vortex tube due to the placement in the chamber of the energy separation of the inner vortex tube, as well as the inability to remove heat from the hot peripheral flow feeding the inner vortex tube.

Указанные недостатки значительно снижают КПД энергоразделител .These drawbacks significantly reduce the efficiency of the energy separator.

Известен также вихревой холодильник , содержащий две соосно установленные вихревые трубы с сопловыми вводами, диффузорами дл вывода гор чего потока и патрубками выводаAlso known is a vortex cooler containing two coaxially mounted vortex tubes with nozzle inlets, diffusers for the hot flow outlet and outlet nozzles

ХОЛОДНОГО потока, причем патрубок вывода холодного потока второй трубы размещен в осевой зоне диффузора первой трубы, а по оси диафрагмы второй трубы расположена трубка вйода газа 23.COLD flow, with the outlet pipe of the cold flow of the second pipe is placed in the axial zone of the diffuser of the first pipe, and a gas discharge pipe 23 is located along the diaphragm axis of the second pipe.

В этом холодильнике вихревые трубы подключены параллельно к одному источнику сжатого газа.In this refrigerator, the vortex tubes are connected in parallel to one source of compressed gas.

10ten

Об зательное наличие общего дл всех труб источника сжатого газа приводит к увеличению его расхода, что в свою очередь значительно снижает холодопроизводительность аппарата.. . 15 Мала эффективность обусловлена тем, что больша часть вытекающего из труб гор чего потока, имеющего повышенное давление, выбрасываетс в атмосферу.The obligatory presence of a compressed gas source common to all pipes leads to an increase in its consumption, which in turn significantly reduces the cooling capacity of the device ... The low efficiency is due to the fact that most of the hot stream flowing from the pipes and having an elevated pressure is emitted into the atmosphere.

Целью, изобретени вл етс повы20 шение КПД холодильника.The purpose of the invention is to improve the efficiency of the refrigerator.

Поставленна цель достигаетс тем, что в устройстве диффузор первой трубы св зан с сопловым вводом второй трубы, а ее диффузор - с труб25 кой ввода газа, причем эти линии св зи снабжены теплообменникгшиj а диффузор второй трубы дополнительно соединен через вентиль с атмосферой.The goal is achieved by the fact that in the device the diffuser of the first pipe is connected to the nozzle inlet of the second pipe, and its diffuser is connected to the gas inlet pipe 25, and these communication lines are equipped with a heat exchanger and the second pipe diffuser is additionally connected to the atmosphere through a valve.

Claims

The drawing shows a diagram of this refrigerator. The refrigerator contains two coaxially mounted vortex tubes 1 and 2 & nozzle inlets 3 and 4, diffusers 5 and 6 for outputting the hot flow, and patrums 7 and 8 of the cold outlet. The outlet 8 of the cold outlet of the second pipe 2 is located in the axial zone of the diffuser 5 of the first pipe 1, and the gas inlet pipe 9 is located along the axis of the diffuser b of the second pipe 2. The diffuser 5 of the first pipe 1 is connected to (SOPLOVY input 4 of the second pipe 2, and its diffuser .6 is connected to the inlet pipe 9, and these communication lines are equipped with heat exchangers 10 and 11, and the diffuser 6 of the second pipe 2 is additionally connected via valve 12 Atmosphere. The number of vortex tubes connected to the cascade may be more than two. The vortex cooler works as follows: Compressed gas from an external source is fed into the nozzle inlet 3 of the first vortex tube 1, where energy is released into the hot peripheral and cold axial flows. Peripheral The flow, rising in the diffuser 5 of the vortex tube 1, enters the heat exchanger 10, where heat is cooled, and enters the nozzle inlet 4 of the second vortex tube. the first vortex tube 1, and the hot peripheral flow, rising in the diffuser b, is divided into two flows. One flow through the valve 12 is removed from the cycle, and the second through the heat exchanger 11, where it gives off heat and cools, is fed through the gas inlet tube 9 in the cold axial zone the second vortex tube 2. Cooled together with the cold core of both vortex tubes, the additional flow along with them through the pipe 7 is removed from the refrigerator to the consumer. Such a performance of the vortex cooler allows to solve the problem of using the energy of a hot stream, to intensify the process of energy separation by increasing the distance at which heat and mass transfer processes take place, while the axial cold flow entering the first vortex tube is further cooled in it. Studies show that the adiabatic efficiency of a vortex cooler is increased by 10-13% compared with known designs. The increase in adiabatic efficiency entails, as a consequence, a decrease in energy consumption per unit of cold produced. The use of hot stream energy to power the second vortex tube also reduces the energy consumption for compressing the working gas. The economical calculation for one vortex cooler during operation in 3 shifts during the year shows an energy saving of 1240 rubles. Claims: Vortex cooler containing two coaxially mounted vortex tubes with nozzle inlets, diffusers for the hot flow outlet and cold flow outlet pipes, the cold flow outlet pipe of the second pipe is placed in the axial zone of the diffuser of the first pipe, and a tube gas inlet, distinguished by the fact that, in order to increase efficiency, the diffuser of the first pipe is connected to the nozzle inlet of the second pipe, and its diffuser is connected to the gas inlet pipe, and these communication lines are equipped with tesh100bm CENI and di.ffuzorvtoroy pipe is additionally connected with the atmosphere through the valve. Sources of information taken into account in the examination 1. The author's certificate of the USSR 721644, cl. F 25 B 9/02, 1980.

2. USSR author's certificate №469858, KJi. F 25 V 9/02, 1973.: JTO fffjff JfffJfO / f / / 7fffff0 yaY / cr ytf / r O I.U