CS201665B1 - Facility for distribution of the cooled water in the mines at the indirect cooling of mine winds by the machine installation - Google Patents

Description

The invention relates to a device for distributing chilled water for indirect cooling of mine winds by a machine located in a mine.

□ fate is used to distribute chilled water in mine air conditioning using a closed circuit consisting of two ducts connecting the evaporator of the cooling unit 8 of the mine wind coolers, thereby allowing circulation of the heat transfer medium. With greater distances between the chiller and the mine wind coolers, installing this circuit is costly, laborious, and time consuming. In addition, it is difficult to lay two new pipeline moves in some mine workings, and these pipes reduce the light profiles of the mine workings to increase their aerodynamic resistance.

The aforementioned drawbacks are alleviated by the use of the device according to the invention for distributing chilled water in the components in indirect cooling of mine winds by a machine consisting of a water buffer tank for refilling water taken for technological purposes, a pump for ensuring water circulation, from the evaporator of the cooling unit for water cooling, from the water piping ee check valve for water supply to coolers and appliances and from the duct with second valve for return water supply to the water equalization tank. The device may consist of a pipe and a first valve for supplying water to the water pipe when the pump is stopped, and optionally a float valve for replenishing the consumed chilled water in the appliances to the mine water buffer tank.

201 665 z

201 BBS water supply. The cooled water is led from the evaporator of the cooling unit through a water pipe and a non-return valve to the mine wind coolers and appliances, where the heated water is led through the valve to the tank and then through the pump to the evaporator. When the operation of the pump is stopped, the non-return valve closes and water from the mine water line is routed through the valve through the other pipeline. The loss of water in the appliances can be replenished from the mine water supply to the tank via a float valve.

By creating a chilled water circuit using water pipelines, in addition to saving on pipelines and labor intensive by placing it, the useful cooling capacity of the cooling device has increased the fact that chilled water has a sentence when used for operational purposes! the cooling effect directly in the workplaces than in the recuperative mine wind coolers, on the one hand, in the workplaces directly increasing the heat-exchange surface of the supply pipe to said chilled water appliances.

A schematic drawing of the chilled water distribution system according to the invention is shown in the accompanying drawing from a water buffer tank 5 for refilling the water taken for technological purposes, a pump 2 for ensuring water circulation, an evaporator 3 of a cooling unit 4 for cooling water. a non-return valve 13 for supplying water to the mine wind coolers 6 and appliances 10 and from the duct 7 and a second valve 14 for supplying water back to the water equalization tank 6. The device consists of a pipe 11 and a first valve 12 for supplying water to the water pipe 8 when the pump 2 is stopped and a float valve 8 for adding the chilled water consumed in the appliances 10 to the water equalization tank 8 of the mine water supply 8.

Water is pumped from the water buffer tank 2 to the evaporator 4 of the cooling unit 4, from which the cooled water is routed through the water line 6 to the mine wind coolers 6. The heated water from the mine wind coolers 6 flows back to the water equalization tank 4 through a duct 7. the cooling station to the water equalization tank 1 is supplied with a mine water supply 8 from which the water in the water equalization tank 8 is replenished via a float valve 9, in the case of chilled water loss by withdrawal of various consumers 10. During operation of the pump 2, this line is closed by a first valve 12, wherein the check valve 13 in the water line 8 between the evaporator 4 and the connected line 46 is opened. When the pump 2 is stopped, for emergency or operational reasons, the operator in the cooling station opens the first valve 12 and closes the second valve 14 on the return line 7 of the chilled water (this can also be solved by automatically controlled valves). The check valve 13e closes itself. This ensures a sufficient water supply to the water pipe 5 from the mine water pipe 5 for emergency operational purposes.

Claims (3)

SUBJECT OF THE INVENTION 1. Apparatus for distributing chilled water in mines by indirect cooling of mine winds by means of a machine, characterized by a damper consisting of a water buffer tank (1) for the refilling of water removed for technological purposes, a pump (2) for ensuring water circulation, from evaporation3 201 BOSS (3) cooling units (4) for cooling water, water pipes (5) and a non-return valve (13) for water supply to the mine wind coolers (6) and appliances (10) and from the duct (7) and the other valve (14) for return water to the water equalization tank (1) · Device according to claim 1, characterized in that it flows from the pipe (11) and the first valve (12) for supplying water to the water pipe (5) when the pump (2) is stopped. Device according to Claims 1 and 2, characterized in that it releases from the float valve (9) to replenish the worn chilled water in the appliances (10) into the water buffer tank (1) from the mine water main (8).