RU2393358C1 - Power insatallation (versions) - Google Patents

Abstract

FIELD: power engineering.

SUBSTANCE: power installation consists of steam engine kinematically coupled with electric generator. The steam engine corresponds to a high temperature steam-gas generator, for example oxygen-hydrogen, at the output of which there is installed a turbo-pump aggregate. An output shaft of the turbo-pump aggregate is kinematically ties with the electric generator and water and oil pumps. Also the input of the water pump is connected with the output of a heat exchanger installed at the output of turbine of the turbo-pump aggregate. The output of the water pump is docked to a steam-gas generator cooling circuit, notably, the oil pump is included into a lubricating system of power installation.

EFFECT: raised efficiency of installation and improved ecological compatibility of operation.

2 cl, 2 dwg

Description

The invention relates to the field of energy, namely to combined cycle power plants.

Currently, important problems in the creation and operation of power plants are the problems of increasing their efficiency and improving environmental conditions, especially when operating in specific conditions of limited and / or enclosed space.

Known combined-cycle plant (see RF patent No. 2142565, IPC F01K 23/10 according to the application No. 96108097 dated 04/18/1996), including a gas turbine unit with an electric generator and a steam source.

Known steam power plant containing a steam engine output shaft, which is connected to an electric machine, control system (see RF patent No. 2144984, IPC F01C 1/16 by application No. 97122296/06 dated 12/30/1997 - prototype).

A disadvantage of the known devices is the low efficiency and insufficient environmental friendliness of the installations, which does not allow their use in confined and / or confined spaces.

The aim of the invention is to remedy these disadvantages, namely increasing the efficiency of the installation and improving the environmental friendliness of its operation.

This goal is achieved by the fact that in a known steam power plant containing a steam engine kinematically connected with an electric generator, the control system according to the invention, the steam engine is made in the form of a high-temperature steam and gas generator, for example oxygen-hydrogen, at the output of which a turbopump unit is installed, the output shaft of which is kinematically connected to the water and oil pumps, and the inlet of the water pump is connected to the output of the heat exchanger installed at the turbine pump outlet th unit and the water pump outlet docked to the steam-gas generator cooling path, wherein the oil pump included in a power plant lubrication.

The second option to achieve this goal may be one in which the oil lubrication system is replaced by a water system.

In this case, there is no oil pump, the inlet of the water pump is connected to the outlet of the heat exchanger installed at the turbine outlet, and the outlet of the water pump is docked to the cooling circuit of the power plant, including and steam and gas generator.

The specified set of features exhibits new properties, namely, that it becomes possible to use the power plant in a limited and / or closed space, because as a result of the combustion of hydrogen in oxygen, only water is obtained - an environmentally friendly product.

In addition, the use of a heat exchanger returns a substantial part of the steam energy, thereby increasing the efficiency of the installation as a whole.

Schematic diagram of the installation shown in the drawings: figure 1 - (first option) and figure 2 - (second option), where:

1 - steam and gas generator;

2 - turbopump unit;

3 - turbine;

4 - water pump;

5 - electric generator;

6 - oil pump;

7 - heat exchanger;

8 - pipelines of the lubrication system;

9 - valve.

The power plant (first option, FIG. 1) includes a high-temperature oxygen-hydrogen steam and gas generator 1, at the output of which a turbopump unit 2 is installed, including a turbine 3 and a block of a water pump 4. Shafts of a turbine 3, a water pump 4, an electric generator 5, and an oil pump 6 kinematically connected. The inlet of the water pump 4 is connected to the outlet of the heat exchanger 7 installed at the outlet of the turbine 3. The outlet of the water pump 4 is connected to the cooling path of the steam and gas generator 1, and the oil pump 6 is included in the lubrication system of the power plant through pipelines 8.

The installation begins with the supply of fuel components (oxygen and hydrogen) to the gas generator 1, where they burn with the formation of high-temperature (~ 900 °) water vapor.

Possessing high energy, high-temperature steam drives the turbine 3 of the turbopump unit 2 and kinematically connected to it a water pump 4 and an electric generator 5. The spent steam enters the heat exchanger 7 and then (after condensation into the liquid phase) to the inlet of the water pump 4, and from it output - to the cooling path of the steam and gas generator 1. The cycle is thus repeated. Since the oil pump 6 is kinematically connected with the shaft of the turbine 3, it also starts to rotate, creating the necessary oil circulation in the lubrication system of the power plant. A rotating electric generator 5 generates electricity. If it is necessary to obtain hot water, this is easily achieved by its selection through valve 9.

The second embodiment of the electrical installation (figure 2) is characterized by the absence of an oil pump, because The electric generator has a water lubrication system. The pipelines of the lubrication system 8 are connected to the inlet and outlet of the water pump 4.

The electrical installation of option 2 is similar to option 1, with the only difference being that when the water pump 4 rotates, water under pressure enters the lubrication system, which ensures lubrication of the installation.

Thus, the proposed power plant provides the generation of electricity (and, if necessary, hot water) with virtually no emission of environmentally harmful substances with an increased efficiency.

Claims (2)

1. Power plant containing a steam engine kinematically connected with an electric generator, characterized in that the steam engine is made in the form of a high-temperature steam and gas generator, for example, an oxygen-hydrogen, at the output of which a turbopump unit is installed, the output shaft of which is kinematically connected by an electric generator, water and oil pumps moreover, the input of the water pump is connected to the output of the heat exchanger installed at the output of the turbine of the turbopump unit, and the output of the water pump is connected to KTU cooling steam-gas generator, the oil pump is included in the power plant lubrication. 2. Power plant containing a steam engine, characterized in that the steam engine is made in the form of a high-temperature steam and gas generator, for example, oxygen-hydrogen, the output of which is installed a turbopump unit, the output shaft of which is kinematically connected to the water pump, and the input of the water pump is connected to the output a heat exchanger installed at the turbine pump turbine outlet, and the water pump outlet is docked to the cooling circuit of the power plant.

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