RU41775U1 - MAIN HOUSING OF HEAT POWER PLANTS WITH SINGLE STEAM-GAS POWER UNITS - Google Patents

Abstract

The utility model relates to the main building of a thermal power plant with single-shaft combined-cycle power units and can be used in the construction of new and reconstruction of existing thermal power plants. The engine room of the main building contains two parallel combined-cycle plants located along it. In the boiler room located at the end of the engine room, two horizontal waste heat boilers are installed, equipped with deaerators and connected to the corresponding exhausts of gas turbines. The electrical compartment is located at the other end of the engine room. Two annexes for auxiliary equipment are placed along the engine room on both sides. Between the engine room and extensions are installed supporting columns with crane beams, crane tracks and a bridge crane with the ability to move the bridge crane along the engine room over two combined cycle plants. Integrated air conditioning devices are located on the roof of the outbuildings and are connected to the corresponding ducts of gas turbines. The utility model provides efficient use of handling equipment and optimal compactness in the installation of the main and auxiliary equipment of two single-shaft combined-cycle plants.

Description

And 11111 III "11111 k". ¹ ". '?" • I •:

IPC E04N5 / 02

MAIN HOUSING OF HEAT POWER PLANTS WITH SINGLE STEAM-GAS POWER UNITS

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The utility model relates to the design of the main building of a thermal power plant with single-shaft combined-cycle power units and can be used in the construction of new and reconstruction of existing thermal power plants.

A known design of the main building of a thermal power plant with a single-shaft combined-cycle power unit, comprising a machine room with a single-shaft combined-cycle plant located along it, a horizontal recovery boiler connected to the exhaust of a gas turbine of a combined-cycle plant, and an additional compartment located along one of the sides engine room. Crane, beams, crane tracks and an overhead crane are installed on supporting columns located along the outer wall of the engine room and between the engine room and the additional compartment with the possibility of moving the bridge crane over the combined cycle plant along the engine room. Integrated air conditioning devices are located on the roof of the building above the additional compartments (see S.V. Tsanaev, V.D. Burov, A.N. Remezov “Gas-turbine and combined-cycle plants of thermal power plants”, Moscow, MPEI, 2002, p. 374-376)

The disadvantage of this design of the main building is that it provides the placement of only one single-shaft combined-cycle plant. For the use of another single-shaft combined-cycle plant

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construction of a new building is necessary, which leads to an increase in capital costs, an increase in the area of development and a decrease in economic efficiency.

The closest technical solution is the main building of a thermal power plant with single-shaft combined-cycle power units. He co

2 holds the engine room with two single-shaft combined-cycle plants placed along it. In the boiler room with two horizontal waste heat boilers are installed, connected to the corresponding exhausts of gas turbines of combined cycle plants. The electrical division is located at the end of the engine room. Crane beams, crane tracks and bridge cranes are installed on the supporting columns located between the engine room and the electrical compartment and between the engine room and the boiler room to move the transverses of the engine room of one bridge crane over steam turbines and generators, and the second bridge crane over gas turbines. Integrated air conditioning devices are located on the roof of the building above the engine room and are connected to the corresponding vertical air ducts of gas turbines. Ancillary equipment is installed in the engine room in free areas (see Heat Power Engineering No. 5,2001, pp. 4-7).

The disadvantages of this design of the main building include the inefficient use of material handling equipment for installation and repair work of two single-shaft combined-cycle plants. The use of two bridge cranes serving each of its sections leads to the formation of "dead" zones.

The task of creating the proposed design is to eliminate these drawbacks and ensure optimal compactness in the installation of the main and auxiliary equipment in the casing of a thermal power plant while maintaining power through the use of two single-gas combined-cycle plants.

The technical result is achieved in that the main building of a thermal power plant with single-shaft combined-cycle power units comprises a machine room with two parallel combined-cycle plants located along the engine room, a boiler room located at the end of the engine room and containing two horizontal

3 recovery boilers equipped with deaerators and connected to the corresponding exhausts of gas turbines of combined cycle plants, an electrical compartment located at the other end of the engine room, two extensions for accommodating auxiliary equipment located along the engine room on both sides of it columns equipped with crane beams, crane tracks and an overhead crane and located between the engine room and extensions with the possibility of moving the bridge crane along the engine room buildings over two combined-cycle plants, and integrated air-conditioning devices located on the roof of the outbuildings and connected to the corresponding ducts of gas turbines.

Air ducts are installed horizontally in the engine room and connected to the corresponding gas turbines with a 90 ° turn of the inlet pipes of the gas turbine compressors, and in the outlets they are routed vertically upwards to the corresponding complex air conditioning devices.

Figure 1 presents a diagram of the main building of a thermal power plant. In FIG. 2 is a cross-sectional view of the main body along AA. FIG. 3 shows the installation site of the crane beams and crane tracks on the supporting columns.

The main building of a thermal power plant contains an engine room 1 with two parallel single-shaft steam-gas plants located along it, which include gas turbines 2, steam turbines 3, electric generators 4 and couplings 5 connecting the electric generators with the corresponding turbines. In the boiler room 6, located at the end of the engine room 1, there are horizontal waste heat boilers 7 connected to the corresponding exhausts of the gas turbines 2 of the combined cycle plants. At the other end of the engine room 1 there is an electrical room 8. Along the engine room 1 on both sides there are two extensions 9 for accommodating

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fatigue equipment. The supporting columns 10, equipped with crane girders 11, crane tracks 12 and a bridge crane 13, are installed between the engine room 1 and extensions 9 with the possibility of moving the bridge crane 13 along the engine room 1 over two steam-gas plants. On the roof of the outbuildings 9 there are integrated air conditioning devices 14 connected to the respective air ducts 15 of the gas turbines 2. Air ducts 15 are installed horizontally in the engine room 1 and connected to the corresponding gas turbines 2 with a 90 ° turn of the incoming nozzles of the gas turbine compressors. In annexes 9, air ducts 15 are routed vertically upward to respective integrated air treatment devices 14. A repair site 16 is located between the combined-cycle plants.

The installation of the equipment of the main building of the thermal power plant includes the installation of units of waste-heat boilers 7 in the boiler room b and heavy auxiliary equipment with a crane. Installation and repair work in the engine room 1 is carried out using one bridge crane 13, which can be used both for servicing gas turbines 2 and for servicing steam turbines 3, electric generators 4 and couplings 5. In the service area of the overhead crane 13 there is also a repair platform 16, which allows heavy equipment to be transported there during installation or repair without transshipment operations. After completion of installation or repair work, the bridge crane 13 remains in the engine room 1 for the next repair work. The horizontal arrangement of the air ducts 15 in the engine room 1 ensures the unhindered operation of the bridge crane.

This design of the main building of a thermal power plant with two single-shaft power units significantly reduces the time required for installation and repair due to the absence of transshipment operations. The use of a single overhead crane makes it possible to improve the assembly quality of a single shaft gas turbine-electric generator-steam turbine.

Claims (2)

1. The main building of a thermal power plant with single-shaft combined-cycle power units, comprising a machine room with two parallel combined-cycle plants located along the engine room, a boiler room located at the end of the engine room and containing two horizontal recovery boilers equipped with deaerators and connected to the corresponding exhausts of gas-turbines installations, electrical department, located at the other end of the engine room, complex devices for air supply goods placed on the roof and connected to the corresponding ducts of gas turbines, supporting columns, crane beams, crane tracks, overhead crane and auxiliary equipment, characterized in that the main building contains two extensions located along the engine room on both sides to accommodate auxiliary equipment, crane beams, crane tracks and an overhead crane are installed on supporting columns located between the engine room and extensions, with the possibility of moving the bridge crane Ana along the engine room above two combined cycle plants, and complex air conditioning devices are located above the outbuildings. 2. The housing according to claim 1, characterized in that the air ducts are installed horizontally in the engine room and connected to the respective gas turbines with a 90 ° turn of the incoming nozzles of the gas turbine compressors, and in the outlets they are brought up vertically to the corresponding integrated air treatment devices.