SU969676A1 - Steam turbine plant - Google Patents

Description

one

The invention relates to a power system and can be used in the improvement of steam heat turbine plants.

A steam turbine installation is known, comprising a chemical water cleaning unit, a water supply network return water cooler and a storage tank connected to the return network water pipeline 1.

The disadvantage of the installation is low profitability in the period of obtaining the maximum load.

The well-known steam turbine plant contains a mains heater connected in pairs with a turbine, and with a consumer — pipelines of direct and return network water, the last of which is connected to the supporting member by the storage capacity of the return network water communicated through the water cooler capacity of the cooled return network water connected to the water treatment, and vacuum deaerator make-up of the heating network.

The disadvantage of the installation is reduced power in peak and high in baseline modes.

The purpose of the invention is to increase the power in peak mode and lower the power in the basic mode.

The goal is achieved

10 by the fact that the vacuum deaerator feeds the heat network is connected by pipeline with the storage capacity of the cooled return network water, and the storage capacity of the return network

5 water is additionally connected by a pipeline with a pump installed on it to the return pipe. Water flow between the retaining member and the 20 network heater.

The drawing shows a schematic diagram of the proposed steam turbine installation. The steam turbine plant contains a turbine 1, to which a mains heater 2 is connected to a pair, communicated with consumer 3 by pipeline A and direct and pipeline 5 of return network water on retaining organ 6. To pipeline 5 of return network water between consumer 3 of heat and retaining organ 6 are connected to pipeline 7 with a valve 8 installed on it; storage capacity of 9 hot reverse supply water, communicated by pipeline 10 with a pump 11 installed on it and a water-cooled cooler (heat exchange) 12 with a battery A supply tank of 13 cooled return network water connected by pipeline Not installed on it pump 15 and valve 16 to pipeline 5 of return network water between retaining member 6 and network heater 2. To outlet of water-cooled heat exchanger 12 for make-up water pipe 17 is connected to water treatment unit 18 Sotrudimi pipelines 19 supply of boilers (not shown; and pipe 20 feed heating system, connected to the vacuum deaerator 21 feed heating network, communicated by pipeline 22 with us installed on it Wasp 23 with a storage capacity of 13 cooled return network water. The accumulator 9 of hot return network water is additionally connected by pipe 2k with HacoqoM 25 installed on it and valve 2b to pipe 5 of return network water between retaining member 6 and network heater 2. The steam turbine works as follows. In the network heater 2, the selected water from the turbine 1 is heated by the network water, which is supplied to the consumer 3. Hot reverse network water accumulated during the peak mode in the storage tank 9 is fed through pipe 10 to pump 11 to the heat exchanger 12, where it heats the raw make-up water and after cooling, it enters the storage tank 13. Water heated in the heat-storage 12 of the cheese passes through the conduit 17 to the water treatment unit 18, and from there via the conduit 19 to the boilers (not shown) and into the vacuum deae ator 21 feeding a heating system, where the pump 22 through conduit 23 is pumped into storage tank 13, the chilled water return network. In the hours of reduced electrical loads (basic mode), the valves 8 and 16 are closed, the valve 26 is open. The heating network is fed by supplying increased electrical loads to the hours (peak mode in the storage tank 9 of hot return network water through pipeline 2 | pump 25 to pipeline 5 between retaining member 6 and network | preheater 2. All hot Reverse network water from consumer 3 and the heat network used to feed from the storage tank 9 is directed, via pipeline 5, to the grid heater 2. Turbine 1 generates reduced electrical power. The electric MOV IOCTH valve 26 is closed, the pump 2S is turned off, the valves 8 and 16 are opened. The pump 15 is turned on. The hot return water flows from pipe 5 through pipe 7 to storage tank 9 in an amount several times higher than pipe 10 due to pump 11 operation. The tank 9 is filled with hot return network water. The cooled water from the tank 13 through line 1 is pumped into the pipe 5 of the return network water in a quantity equal to the sum of the return network water in tank 9 and the required amount of feeding the heating system in peak mode. The container 13 is emptied. The supply of chilled water to pipeline 5 leads to a decrease in temperature before the mains heater 2, to an increase in steam consumption from the turbine to it and, consequently, to an increase in the electrical power of the installation. At the same time, due to the fact that in the basic mode, the heating system is fed with a hot return network water from the tank 9, and the chemical cleaned feed water accumulated in the tank 13 in the basic mode, which has a temperature lower than the hot reverse network water, is supplied to

Claims (1)

Claim A steam-turbine installation containing a network heater connected in pairs with a turbine, and with a heat consumer through pipelines of direct and reverse supply water, the last of which is connected to the storage unit with a storage tank of hot return network water in communication with a storage tank of cooled return network water through water-water cooler connected to chemical water treatment, and a vacuum deaerator of recharge tep969676 * visit, characterized in that, in order to increase power in peak mode and reduce power in In the basic mode, the vacuum S deaerator of the heating network recharge is connected by a pipeline with a storage tank of chilled return network water, and the storage tank of hot reverse network water is additionally connected by a pipeline with a pump installed on it to the return network water pipe between the retainer and the network heater.