SU607048A1 - Mine water-cooling plant - Google Patents

Description

one

The invention relates to refrigeration technology and can be advantageously used in systems of heat conditioning of air in mines with the underground placement of refrigerators and with the transportation of cold to the bottom using circulating water.

A known mine plant for cooling water comprising a cooling machine with a heat exchanger and a pipe for circulating the cooled water II.

A disadvantage of the known installation is that the cold produced in the chiller is transported by water to the air-cooling apparatuses located at a considerable distance from the chiller, as a result of which water may freeze at negative temperature of the refrigerant.

Also known is a mine plant for cooling water, including a chiller with a heat exchanger and a pipeline for circulating cooled water.

The disadvantage of this installation is that at freezing temperatures of the refrigerant water may freeze.

The purpose of the invention is to eliminate the possibility of freezing of water at a negative temperature of the refrigerant.

The goal is achieved by the fact that the refrigeration unit is equipped with an additional heat exchanger and a sealed chamber e with a refrigerant, the condensation temperature of which is higher than the freezing point of water, while the heat exchangers are located inside the sealed chamber.

The drawing shows a diagram of the proposed mine water installation for cooling

The installation includes a refrigerating machine 1, a heat exchanger 2, an additional heat exchanger 3, a sealed chamber 4 with an intermediate refrigerant, an air cooler 5, a piping system 6 with cooled water, a piping system 7 of the refrigerating machine with a refrigerant.

The installation works as follows.

The refrigerant N aiiJHHbj 1 refrigerant enters the heat exchanger 2, in which the slave nt, recovers the intermediate refrigerant, is located in the heat chamber 4, due to condensation of the intermediate refrigerant on the surface of the heat exchanger 2. The piping system 7 provides for the circulation of the refrigerant-refrigerant machine 1 and heat exchanger 2. Condensed intermediate chla-Q

The dagent under the influence of the force of gravity flows into the lower part of chamber 4 so that the additional heat exchanger 3 is immersed in a liquid intermediate refrigerant. The water, heated in the air cooler 5, enters the heat exchanger 3 and transfers its heat to the liquid intermediate refrigerant, which boils due to this. The cooled water through the piping system 6 returns to the air cooler 5. The intermediate refrigerant vapor rises and again condenses on the surface of the heat exchanger 2, transferring the heat of condensation to the refrigerant of the refrigerating machine. The intermediate refrigerant, which is located in the sealed chamber 4, is adjusted to 25 1965.

so that the temperature of the ei-o cnpeiin (condensation) in a c (m was extreme temperatures () b of freezing yols)

The cooling installation shaft is equipped with a chilled water cooling machine which is different in that it is equipped with an additional heat exchanger and a reflux chamber with a refrigerant, the condensation temperature of which is higher than the freezing temperature of the water, while the heat exchangers are located inside sealed chamber

Sources of information taken into account in the examination:

.one. Voyten A. Heat removal, forming in climatic installations. Glucauf, No. 2, 1974, p. 22

2. Patent of Germany No. 828388, cl. 5 D 3/00, exchanger and circulation piping