RU1811635C - Atomic power plant - Google Patents

Description

l of the reactor. The entire first circuit with TEG 4 is placed in a protective housing 5 filled with coolant - water of the intermediate second circuit with a pressure of 2 kg / cm and withstanding pressure of 15 kg / cm2 in the case of depressurization of buildings 2 and 3. All equipment, including the heat exchanger heat supply systems 6, placed in an airtight box 7 with internal dimensions of 6x6x10 m, Control rods 8 are located. In the upper part of the body they serve only to start and stop the reactor, other operating modes are provided due to self-regulation without movement and bars ..

The device operates as follows.

The heat from the core 1 by natural convection of the primary primary water coolant with a temperature of 320 ° C is transferred to the hot springs of TEG 4; the coolant cooled by 15-20 ° C is returned to the entrance to the active zone 1. The generation of electric energy occurs due to the temperature difference maintained between the heat carriers of the first and second circuits. The circuit of the coolant circulation in the fuel cell, Gakh, is organized according to the type of the Field tube: the hot coolant flows inside, and the cold flows back through the external cavity. The scheme of organization of the circulation of the primary coolant is similar to the conventional scheme of pipe in pipe. Unconverted into electrical energy, part of the heat is removed from the cold junctions of the TEG 4 with an aqueous coolant of the second circuit with a temperature of 90-95 ° C and, due to the natural circulation of the coolant, enters the heat exchanger of the heat supply system 6; the heat carrier cooled by 5–10 ° returns to the cold springs of TEG 4. The heat is supplied to consumers from the heat exchanger of the heat supply system 6 by the heat carrier of the third circuit with a pressure of 3-4 kg / cm and with a temperature on the heat supply line of 85 ° C and on the return 55 ° C.

The calculation of the parameters was based on the following requirements: temperature

water - 85 ° С, thermal power - 3 mW. electric power - 100 kW.

This technical solution meets many of the requirements for small power plants, which should be located close to the consumer. Increased safety is achieved by:

self-regulation of burnout processes, i.e. no need for controls, automation,

the absence of moving parts - turbines, generators, pumps, in addition, the maintenance-free TEGs allows you to get a completely maintenance-free station as a whole,

prevention of drainage of the core and multi-barrier station - more than at all existing ones, both in nominal and emergency modes.

To this it should be added that the station allows for the production of electricity and thermal energy together at the maximum ease of solution. At the same time, a high efficiency of the plant is achieved due to the supply of all heat not converted to electricity for heat supply needs, as well as utilization of heat losses by the secondary coolant.

Claims (1)

The claims A nuclear power plant containing a first circuit consisting of a water-borne nuclear reactor with natural circulation of heat carriers and heat exchangers of the first and second circuits, a second intermediate circuit and a third heat supply circuit, which, in order to increase safety and ensure long-term operation without maintenance of a multifunctional station of small capacity, the first circuit is enclosed in a protective housing filled with coolant of the second circuit, and the heat exchangers of the first and second circuits are made in the form of rmoelectric generators and located inside the protective housing ... .