SU1262208A1 - Method of maintaining water level in heat-supply system - Google Patents

Abstract

METHOD OF FILLING UP THE HEATING NETWORK, including receiving source water, heating it, thermal deaeration with heating medium and supplying deaerated source water to a heating network, characterized in that, in order to increase efficiency by reducing condensate losses, a part of the obtained source water is overheated with water vapor of an energy source , get steam and use it as a heating medium for thermal deaeration of the remaining part of the source water.

Description

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The invention relates to a power system and can be used in thermal schemes of sources of thermal energy with the deaeration of make-up water.

The aim of the invention is to increase the efficiency of energy sources by reducing the losses of condinbates.

The drawing shows a schematic diagram of the installation of feeding the heat network for implementing the method.

The installation contains a thermal deaerator 1, connected by a feed line 2 with a pump 3 installed on it and a water heater 4 to a heat network return pipeline 5, and the main source water pipeline 6 with a portion 7 of the source water installed in it to the thermal deaerator 1.

The installation also contains 1; an Aogenerator, made in the form of a preheater 8 of the original WATER and a pipeline 9 connected to it with 9, and a separator 10 in the form of an instantaneous boil-off evaporator. The separator 10 has a steam and water volumes of 11 and 12, respectively, with the steam volume 11 formed by the upper and lower recovery boards 13 and 14, respectively, and connected to the pipeline 15 for supplying the heating medium to the thermal deaerator 1, and the water volume 2 is connected by pipeline 16 sec.

a pump 17 installed on it through a pipeline 18, equipped with a regulator 19, with an additional pipeline 20 of a part of the source water. The additional pipeline 20 is equipped with a regulator 21 for supplying the source water to the steam generator. In addition, water volume 12 through pipeline 16 with a regulator 22 installed on it, supporting a constant water level in the separator 10 is connected by pipeline 23 to pipeline 2 of the feed and pipeline 24 to the main pipeline 6 of the source water. On the pipe 9 in the steam volume II of the separator 10 mounted nozzles 25 superheated water.

The method of feeding the heat network is carried out in the following ways.

At the chemical water treatment station, source water is obtained and fed to the thermal deaerator 1 by two G1 currents - part through the main pipeline 6 through the water heater 4 in an amount controlled by the regulator 7, and the rest through the additional pipeline 20 through the heater 8 to the separator 10 the quantity controlled by the regulator 21.

The water transported through conduit 6 to the deaerator 1 is heated in the conduit of the heater 4 to 70-80 grad.d. It is heated during thermal deaeration in the deaerator 1 to 102 degrees, and discharged by pump 3 via pipeline 2 to the return pipe 5 of the heat network, giving off some of the heat to the source water transported through the water heater 4.

Transported by optional

the pipeline 20 to the separator 10 source water is overheated in the heater 8 to 150-170 degrees, with water vapor of the energy source and fed to the nozzles 25, which provide drip fine dispersed water to the steam volume 11 of the separator 10. Separated from the source water on the upper shield 13 pipeline 15 enters the thermal deaerator 1, where it is used as a heating medium for thermal deaeration

5, the remaining part of the source water entering the thermal deaerator 1 via conduit 6, and condenses with exhaust of the air-vapor mixture to the atmosphere. In the vapor volume 11, a pressure is created equal to the value of the saturation pressure in the thermal

0 deaerator 1, i.e., close to atmospheric, which contributes to instantaneous intensive boiling up of overheated source water and release from the steam flow.

The quality control of the dewatering of the source water in the separator 10 is achieved by the fact that part of the separated water from the water volume 12 is supplied by the pump 17 to recirculation through the heater 8 and the separator 10 in an amount controlled by the regulator 19. In this case, the regulator 19 can

0 to maintain both a constant flow of water to the separator 10 while the regulator 21 maintains the vapor pressure in the deaerator I and the vapor pressure in the deaerator 1 while maintaining the constant flow of the regulator 21 to the separator 10. This creates a forced circulation circuit heated water formed by the separator 10, the pump 17, the recirculation pipe 8, the pipe 20 of the source water and preheating the body.1 8. Repeated circulation of the separated water in the mixture with the source through the heater 8 and the separator 10 The possibility of obtaining in the separator 10 steam in an amount sufficient for heating and an optimal thermal process

5 deaeration of water in deaerator 1.

Water from separator 10 is pumped through pipe 16 to supply line 2 in quantity controlled by regulator 22. In the start-up mode of the installation, as well as during the setting of the operating mode of the separator Yu, the separated water is removed from water volume 12 via pipeline 16 and through pipelines 24 and 6 to the deaerator 1 for thermal deaera 5 of the SRI.

Thus, with the implementation of the method of feeding the heat network, an intensive release of steam from the atomizer is achieved.

mine in the vapor volume 11 of the separator 10 ne-source, which returns from the sub-preheated part of the source water and discharges the heater 8 back into the energy cycle

of the radiated vapor to the deaerator 1 for the thermal source, and to ensure the deep degasak deaeration of the remaining part of the initial source water and the possibility of its emptying, which eliminates the loss of specific use in thermal

Densat heating steam energy IS-network.

1262208

Claims (1)

METHOD FOR SUPPLYING THE HEAT NETWORK, including obtaining the source water, heating it, thermal deaeration by the heating medium and supplying the deaerated source water to the heating network, characterized in that, in order to increase efficiency by reducing condensate losses, part of the obtained source water is overheated with steam of the energy source, get steam and use it as a heating medium for thermal deaeration of the remaining part of the source water. SU, „1262208