SU914783A1 - Evaporation cooling system - Google Patents

Description

The invention relates to systems for high-temperature evaporative cooling of heat engines, in particular, reciprocating internal combustion engines, and can be used in stationary or ship power plants.

Known systems of high-temperature evaporative cooling, internal combustion engines, containing, an open circuit with a steam separator located in it and a reserve tank, the water volume of which is communicated with the water volume of the steam separator through the make-up pipe ² and the control pipe with a control valve.

In this system, there is no special pump to feed the steam separator with water from the supply tank, which simplifies the system and reduces energy consumption for own needs. Water supply to the steam trap is provided by placing the supply tank

2

at a high enough height above the steam trap ha.

A disadvantage of the known system is that it has significant dimensions in height, especially at elevated excess pressure of steam in the steam separator, which complicates the assembly of power plants and increases the cost of their construction.

The purpose of the invention is to reduce the size by creating excessive pressure in the steam separator.

This goal is achieved by the fact that the backup tank is sealed and provided with a floating partition dividing the tank into liquid and steam cavities, the latter communicating with the steam volume of the steam separator through a balancing pipe.

In addition, the inner surface

reserve capacity and the outer surface of the surge pipe

provided with a heat insulating coating

914783

and the floating partition is made of a material with high thermal resistance.

The drawing shows a diagram of the system evaporative cooling of the engine, 5

The system consists of a series-connected circulating pump 1, cavities 2 for cooling the engine and a steam separator 3. The reserve tank 4 is divided by a floating partition 5 U into liquid 6 and steam 7 volumes, communicated respectively by feed 8 and equalizing 9 pipelines with liquid and steam volumes of the steam separator 3. Make-up pipe- 15 wire 8 is equipped with a control valve 10, and the steam separator 3 - with a steam exhaust pipe 11 ..

The system works as follows. 20

The water heated in the cavities 2 cooling to a temperature above 100 ° C enters the steam separator 3, where it is cooled due to its partial evaporation when the pressure drops. The circus-25 liquid pump 1 takes the cooled water from the steam separator 3 and again supplies it to the cooling cavities. Steam from the steam separator 3 is routed through a steam exhaust pipe 11 to _the gas exhaust tract of internal combustion engines or the gas recovery plant. Moreover, the vapor pressure in the steam volumes of the steam separator and the reserve capacity is almost the same and is determined by the hydraulic value. resistances of exhaust pipelines or utilization, installation, and also engine load. 40

The steam trap is supplied with water coming from the reserve tank due to the location of the latter at a height equal to the pressure loss in the make-up pipeline and the control valve. Passing through

the cross section of the latter is regulated in

ι

depending on the load on the divider and the water level in the steam separator. When using steam in the utilization plant, its condensation losses in the supply tank are minimized by measures for the thermal insulation of the tank, its partition walls and the equalization pipe.

These measures can reduce the height of the dimensions of the system.

Claims (2)

Claim 1. Evaporative cooling system for an internal combustion engine, containing an open circulation circuit with a steam separator located in it and a reserve tank, the water volume of which is communicated with the water volume of the steam separator through a make-up pipe with a control valve, in order to reduce the size by creating an overpressure in the steam separator, the reserve tank is sealed and provided with a floating partition dividing the tank into liquid and steam cavities, and after the day is connected to the steam volume of the steam separator via a balancing pipe. 2. The system of claim 1, distinguished by the fact that the inner surface of the reserve tank and the outer surface of the surge pipe are provided with a heat insulating coating, and the floating partition is made of a material with high thermal resistance.