SU62480A1 - Cooling system control device - Google Patents

Description

The invention relates to control devices of a cooling system, preferably high vacuum pumps of mercury rectifiers of electric current. However, it can also be used with other installations.

The high-vacuum pump of modern mercury rectifiers works as an ejector acting as mercury vapor. If the condensation of mercury vapor in the cooling jacket of a high-vacuum pump would be insufficient, the mercury vapor injected would be able to break into the machine room of the rectifier station. To achieve sufficient condensation of mercury vapor, it is necessary to cool the condensation surface of a high-vacuum pump with cold water. At many stations, the power supply to the cooling coil of the high-vacuum pumps is powered from spare tanks. Spare tanks are very hot in summer, and the water in them is much warmer than tap water. The use of warm water to cool the condensation chamber of a high-vacuum pump causes deterioration of its operation and the danger of mercury vapor entering the mashroom room. On the other hand, the supply of cooling jackets from the plumbing is unacceptable, since in the event of a break in the supply of tap water, the high-vacuum pumps would be left without cooling at all. Therefore, in the cooling system with tap water, it is necessary to provide backup tanks that are automatically included in the cooling system in case of interruption in the supply of tap water. Such cooling systems are generally known, and in these systems there is the use of a regulating device with piston valves, which are simultaneously subjected to pressure from the water supply to the tank to those intended and for automatic activation of the spare tank.

No. 62480-2

The proposed riin regulating device of this type has the peculiarity that the working edge of the valve is smaller than the receiving opening of the pipe, with a smooth switching from the water supply to the power supply from the reserve tank, as well as to maintain water circulation in the water supply tank. .

The drawing shows an exemplary implementation scheme of the proposed device.

The water pipe 12 feeds the spare pressure tank 1 through the float valve 13 and the non-return valve 5. The power supply of the cooling coils is carried out through the pipe 15 and the box to, -1app, ana 9 and then through the pipe 10 to the pump connections. Since the water pressure in the water pipe is higher than the water pressure in the reserve tank, the piston valve 9 will be in the upper position and lock the pipe P. If the supply of tap water stops, the check valve 5 will close and the water from pipe 16 will flow into pipe 10 until while valve 9 does not fall down. Since the working edge of the valve 9 is smaller than the diameter of the receiving opening of the pipe 10, then after the valve is lowered, high-vacuum pumps will supply water from both the tank / and pipe 16. When switching to power supply, the Paso jackets from the tank / due to the lowering of the piston valve 9, contacts 8 will be closed, which are closed by ring 5. To stop ring 3, press the button that lifts the pin 17 and brings it closer to the electromagnet 4. This electromagnet but has enough force to pull the pin 17, but can hold it that measles when it is lifted by hand. When this happens, the reminder light 2 comes on. When the light bulb 2 burns out, the electromagnet 4 turns off, the measles / 7 drops out and starts the bell 5. If the water is supplied from the water supply again, the check valve 5 opens, the piston valve 9 rises and breaks the contacts 8, as a result of which the reminder light 2 goes out.

If you wish to have a not too slow circulation of water in the reserve tank /, using the handwheel 7, screw in the stop 14, which limits the stroke of the piston valve 9 upwards or secures it in the extreme position. To prevent the contacts 8 from activating the signals 2 and 3, the current circuit is broken in the contacts 6, usually connected by the stop 14.

Subject invention

Claims (3)

1. The regulating device of the cooling system from the water mains with the automatic activation of the spare tank at the pressure of the water mains, using for this purpose a pressure valve, which is under simultaneous pressure from the water mains and the tank, in order to smoothly switch the cooling system from the supply from the water supply system to the power supply from the reserve tank, as well as to maintain the circulation of water in the tank during the power supply from the water supply system, the width of the working edge of the valve is smaller than the diameter of the receiving opening Uba. 2. In the device according to claim. 1, the use of an electrical alarm system that is automatically activated in the lower position of the valve. 3. The form of the device according to paragraphs. 1 and 2, characterized in that the valve is provided with a device in the form of a adjustable stop mounted on the thread for forcibly moving the valve by hand in order to supply the cooling system from the tank.