SU901744A1

SU901744A1 - Air conditioning unit

Info

Publication number: SU901744A1
Application number: SU802907149A
Authority: SU
Inventors: Владимир Наумович Бродский
Original assignee: За витель - В. Н. Бродский iH. eATtrrw- ч;.I 13 fPJ.-lRC5 A ; БЯ6ЛШТ« Л
Priority date: 1980-04-04
Filing date: 1980-04-04
Publication date: 1982-01-30

Description

(54) УСТАНОВКА КОНДИЦИОНИРОВАНИЯ ВОЗДУХА (54) AIR CONDITIONING INSTALLATION

1one

Изобретение относитс к технике кондиционировани воздуха.The invention relates to air conditioning technology.

Известны установки кондиционировани воздуха, содержащие каналы удал емого и приточного воздуха, в которых установлены контактные аппараты, соединенные между собой контуром дл циркул ции раствора сорбента с включенными в него подогревателем и охладителем, и компрессионную холодильную машину, в контуре которой размещены два теплообменника 1.Air-conditioning installations are known that contain exhaust and supply air channels, in which contact devices are installed, interconnected by a circuit for circulating a sorbent solution with a heater and a cooler included in it, and a compression chiller, in the circuit of which two heat exchangers 1 are located.

Недостатком этих установок вл етс низка теплоэнергетическа эффективность. Это обусловлено тем, что процессы осушени и охлаждени воздуха осуществл ютс одновременно в одном аппарате и поэтому нерационально потребл етс дорогосто щий низкотемпературный холод не только дл охлаждени воздуха, но и дл поглощени теплоты сорбции.The disadvantage of these plants is low heat and energy efficiency. This is due to the fact that the processes of drying and cooling the air are carried out simultaneously in the same apparatus and therefore costly low-temperature cold is not efficiently consumed not only to cool the air, but also to absorb the heat of sorption.

Цель изобретени - повышение тепло- энергетической эффективности установки.The purpose of the invention is to increase the thermal and energy efficiency of the installation.

Поставленна цель достигаетс тем, что охладитель и один из теплообменников холодильной машины установлены в канале удал емого воздуха перед контактным аппаВ . Н. БРОДСКОГОThis goal is achieved by the fact that the cooler and one of the heat exchangers of the refrigerating machine are installed in the exhaust air duct before the contact equipment. N. BRODSKY

ратом, второй теплообменник холодильной машины размещен в канале приточного воздуха после контактного аппарата, а подогреватель подсоединен к контуру холодильной машины.On the other hand, the second heat exchanger of the refrigerating machine is placed in the supply air duct after the contact device, and the heater is connected to the contour of the refrigerating machine.

На чертеже представлена схема установки кондиционировани воздуха.The drawing shows the scheme of installation of air conditioning.

Установка содержит каналы 1 и 2 удал емОго и приточного воздуха, в которых установлены контактные аппараты 3 и 4,The installation contains channels 1 and 2 of remote and supply air, in which contact devices 3 and 4 are installed,

10 соединенные между собой контуром 5 дл циркул ции раствора сорбента с включенными в него подогревателем 6 и охладителем 7, и компрессионную холодильную мащину 8, в контуре 9 которой размещены два теплообменника 10 и 11. Охладитель 7 и один10 interconnected by loop 5 for circulating the sorbent solution with heater 6 and cooler 7 included in it, and a compression cooling mask 8, in loop 9 of which two heat exchangers 10 and 11 are placed. Cooler 7 and one

из теплообменников 10 холодильной машины 8 установлены в канале 1 удал емого воздуха перед контактным аппаратом 3, второй теплообменник 11 холодильной машины 8 размещен в канале 2 приточного воздуха после контактного аппарата 4, а подогреватель 6 подсоединен к контуру 9 холодильной машины. of the heat exchangers 10 of the refrigerating machine 8 are installed in the exhaust air duct 1 in front of the contact unit 3, the second heat exchanger 11 of the refrigerating machine 8 is placed in the supply air duct 2 after the contact apparatus 4, and the heater 6 is connected to the refrigerating circuit 9.

Claims

In addition, the installation has pumps 12 and 13 three-way valves 14-16, valves 901 tori 17 and 18. In units 3 and 4, irrigated nozzles from corrugated sheets with intersecting channels or a flow block nozzle can be used. Refrigerator 8 includes compressor 19, four-way switching valve 20, thermostatic, valves 21 and 22, check valves 23 and control valve 24. In addition to these elements, this unit can be equipped with the required instrumentation and automation devices, as well as air filters. The installation works as follows. In the warm period of the year, the outside air enters the contact apparatus 4, where it is dried to a predetermined moisture content by treating with a concentrated solution of the sorbent and then the dried air is cooled to the required temperature in heat exchanger II (performing the direct evaporation air cooler function in this mode) and fan 18 is supplied to a conditioned space. the fan 17 takes air from the conditioned and also from other adjacent rooms or even outside air and this mixture cools the reconstituted warm sorbent solution in the cooler 7. Then the refrigerant vapor is cooled in the same heat exchanger 10, which in this mode of operation em functions as an air-cooled condenser of the cooling maschine 8. After that, the heated air enters the contact apparatus 3, where it takes moisture from the weakened solution of the sorbent, which was previously It is heated by refrigerant vapor in the heater 6, which in this mode of operation also functions as the condenser of the refrigerating machine 8. In the cold period of the year, the refrigerating machine 8 switches to operation in the heat pump mode using a four-way switching valve 20, and provides heat recovery from the exhaust air. At the same time, the outside air is first heated and humidified in the contact apparatus 4 with a solution of a sorbent, which is preheated and enriched with moisture in the contact apparatus 3, due to utilization of the sensible and latent heat from the exhaust air. Pumping out the reconcentrated sorbent solution from the contact apparatus 3 is performed by pump 12, and in the warm period of the year the solution is directed by valve 14 to cooler 7, and in the cold period of the year to heater 6. in the warm period of the year, the necessary part of the total amount of the solution is sent by the valve 16 to the preheater 6, and the rest is returned to the apparatus 4. Through the flow control valve 24, it is possible The necessary part of the refrigerant amount bypassing the heater, in addition to the preheater 6, to change its heat output. In order to control the performance of the cooling mash 8 in both modes of operation, the most acceptable known methods can be used. As a result of the proposed design of the air conditioning unit, the consumption of heat, cold and electricity is reduced. Claims An air conditioning unit comprising exhaust and supply air ducts in which contact devices are installed, interconnected by a circuit for circulating a sorbent solution with a heater and a cooler included in it, and a compression chiller, in the circuit of which two heat exchangers are placed, which differ so that, in order to increase the heat and energy efficiency, the cooler and one of the heat exchangers of the refrigerating machine are installed in the exhaust air duct before ntaktnym apparatus, the second heat exchanger chiller disposed in the supply air channel after the contact apparatus, and is connected to the heater circuit of the chiller. Sources of information taken into account when the expert) 1se 1. Karpis EE. Improving the efficiency of air conditioning systems. M., stroiizdat, 1977, p. 102-103.

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