SU681457A1 - Nuclear power plant with closed working gas circulation circuit - Google Patents

Description

They do not have a turbo unit with a generator and other elements of the working gas circulation, and in the chambers of the concrete tank are equipped with gas; constipation locks and safety valves, the dividing walls of the walls between the chambers have openings for passing the gas.

FIG. 1 shows an atomic energy installation, a slit; in fig. 2 the same, longitudinal section A-A in FIG. 1 in FIG. 3 - the same cross section

13-B in FIG. one.

The atomic power plant has an outer pre-stressed concrete protective sheath 1 and a concrete tank 2, which with its outer walls 3 borders on the vertical inner side of the protective sheath 1 and has a notch 4 for the reservoir 5 of prestressed reinforced concrete in which the active zone of the reactor is placed 6. Inside the concrete tank 2 there are separate chambers 7-11, in which a horizontal turbine unit 12 with a generator, as well as the remaining units and elements of the circulation system, are located. gas such as recuperative heat exchanger 13, preliminary ny cooler 14, the intercooler .akkumul gas torus 15 and the system. 16 heat dissipation. The thickness of the walls and their design meets the necessary requirements for protection from radioactivity, and protection from fragments is also provided in case of the rupture of one of the nodes placed in the chambers.

Above the concrete tank 2 of the nuclear power plant there is a mounting room 17, bounded by wall 18, which also, like the outer wall 3 of the concrete tank 2, adjoins the inner side of the outer sheath 1. Wall 18, on the one hand, serves as a supporting structure for crane the path located above the chambers of the crane 19, which is necessary for lifting the nodes from the chambers during their dismantling and repair, and on the other hand, as an installation aid for the construction of the outer protective sheath 1.

For assembling and disassembling units installed in chambers 7-11, in the latter there are windows with gas-tight locks 20 protected from radioactive radiation. In chambers extending in the vertical direction, the locks 2O are placed in the wall of the concrete tank 2 from

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his from the mounting room 17.

The chambers adjoining each other in the concrete tank are interconnected by passages 21. These passages ventilate, c and have entrances 22 and gateways 23 embedded in the walls of the containment 1. Safety valves 24 are provided between the passages 21 and the chambers with unacceptable pressure increase one of the chambers is opened independently and in the event of an accident, hot working gases are removed without exposing the walls of the overvoltage chambers. There is also an influx of working gas from one chamber to the adjacent ones through an emergency Social openings 25 for the passage of gas pipelines, these openings also serve for placing in pipe and pipe fittings and closures.

In the concrete tank 2 above the chamber 7, in which the turbine unit 12 is mounted with an electric generator 26 and provided with a covering 27 that is shielded from fragments, is placed the protected room 28 for the reinforcement. The pipelines connecting the reactor 6 with the tuu unit 12 to the hot gas are passed through the protective overlap 27.

The tank 5 of prestressed reinforced concrete, in which the reactor 6 is placed, is made in the form of a structure constructed separately from the rest of the installation structures. In order to control or inspect tank 5, for example, tightening the tension cables or controlling the measuring instruments that follow the reaction, between the tank 5 of prestressed reinforced concrete and the concrete tank 2 is left free space inside the cavity 4.

Thermal insulation 29 is arranged on the walls of chamber 7 and indoors .28 for reinforcement, preventing overheating of the walls of the concrete tank, 2 in the event of an accident of hot gas circulation pipelines. When opening the lid 2O and disconnecting the pipe connections on the heat carrier to be disassembled, the latter can be raised into the mounting room 17, as. This is shown schematically in FIG. 1, for a regenerative heat exchanger 13, after which the heat exchanger 13 can be removed from the installation.

Claims (2)

In addition, the chambers with machines and devices inside them that enter the circulation circuit of the working gas, which contains radioactive radiation, are such that they are not allowed to be reached or that this access is limited to a short residence time. Such a constructive implementation makes it possible to simplify the design, reduce the cost of the installation and increase the safety of its operation. Claim 1. Atomic power plant with a closed circulation circuit of working gas, including a reactor, placed inside a protective shell in a vessel with walls made of prestressed reinforced concrete, elements of a cooling circuit, including a turbine unit with a generator, a heat exchanger, a gas accumulator located in the premises, as well as connecting gas pipelines, is tolichausha with the fact that, in order to strengthen the structure and reduce the cost of building the installation, the capacity of pre-stressed jelly The concrete is placed in the recess of the concrete tank adjoining the outer wall to the vertical inner side of the spine shell, and there are chambers inside the concrete tank to accommodate the turbine unit with the generator and the rest of the working gas circuit. 2. Installation according to claim 1, that is, with the fact that the chambers of the concrete tank are filled with gas tight closures and safety valves. 3. Installing pop. 1, .- about T. Shch 6 that the dividing walls between the chambers have openings for the passage of gas. Sources of information taken into account in the examination 1. German Patent No. 1764249, cl. 21 21/20, 1971. 2. The patent of Germany No. 224D426. cl. 21 tf 21/20, 1974 681457 4- /