TH52516A - Combined structure between boiler and steam turbine And methods for preheating water, supply for steam turbines, and methods for controlling preheating. - Google Patents

Abstract

DC60 This invention involves a unit-integrated structure between the equipped boilers. With combustion chamber and steam turbine The steam is then taken from the boiler (10), moving along the link. Next to a steam turbine (11) for rotating a generator (K) to produce electricity. Water flowing supply Circulated through the boiler (10), it is evaporated in the evaporator (190), which is positioned in the boiler (10) and is superheated in the superheated water device (120). The supply is directed to the boiler through an energy-saving device (20), which acts as an exchange device. Change in heat Where heat is transferred from the boiler flue gas to the water, the energy-efficient equipment supply (20) is provided with at least two parts, which are comprised of the energy-saving equipment section. At least one section (20a1) and at least one section (20a2) of the second energy-saving equipment, the supply water is taken from the section. The first energy-saving device (20a1) goes to the pre-heating device, the hot supply water which is formed. From the heat exchanger (14), where the heat energy is transferred from the released steam Out of the steam turbine In a direct manner or through an intermediary Which in a good way is water To the water supply, the pre-heated source with the steam released of the steam turbine is brought in the boiler (10) to the second energy-saving equipment section. (20a2) and then to evaporation devices (190) and superheating devices (120) and through them in the form of steam to steam turbines. In such a unified structure The temperature of the supply water will be valued. This increases continuously while the supply water is flowing in the first energy saver section (20a1) and from the first energy saver section. (20a1) goes to the water pre-heating device (14) and it flows through it to the second energy-saving device section (20a2) connector (13a1,1), which leads to the water pre-heating device. The supply (14) is assembled with a flap (21) for controlling the flow of steam released to the pre-heater (14) .This invention also involves a method for pre-heating of the supply water for the turbine. Steam and Methods for controlling pre-heating This invention involves a unit-integrated structure between the ready-made boilers. With combustion chamber and steam turbine The steam is then taken from the boiler (10), moving along the link. Next to a steam turbine (11) for rotating a generator (K) to produce electricity. Water flowing supply Circulated through the boiler (10), it is evaporated in the evaporator (190), which is positioned in the boiler (10) and is superheated in the superheated water device (120). The supply is directed to the boiler through an energy-saving device (20), which acts as an exchange device. Change in heat Where heat is transferred from the boiler flue gas to the water, the energy-efficient equipment supply (20) is provided with at least two parts, which are comprised of the energy-saving equipment section. At least one section (20a1) and at least one section (20a2) of the second energy-saving equipment, the supply water is taken from the section. The first energy-saving device (20a1) goes to the pre-heating device, the hot supply water which is formed. From the heat exchanger (14), where the heat energy is transferred from the released steam Out of the steam turbine In a direct manner or through an intermediary Which in a good way is water To the water supply, the pre-heated source with the steam released of the steam turbine is brought in the boiler (10) to the second energy-saving equipment section. (20a2) and then to evaporation devices (190) and superheating devices (120) and through them in the form of steam to steam turbines. In such a unified structure The temperature of the supply water will be valued. This increases continuously while the supply water is flowing in the first energy saver section (20a1) and from the first energy saver section. (20a1) goes to the pre-heating device, the supply water (14) and it flows through it to the second energy-saving device section (20a2), the connector (13a1,1), which leads to the pre-heating device. The supply water (14) consists of a valve (21) for regulating the flow of steam released to the preheating apparatus (14). This invention also involves a method for preheating the supply water for Kang Hang steam and Methods for controlling pre-heating

Claims (4)

1. The combined structure between the boiler and the steam turbine is provided with the combustion chamber which includes The connector is structured and provided to carry the steam from the boiler (10) to the steam turbine (11) for turning the generator (G) to generate electricity. The evaporator (190) is positioned in the boiler (10). Such evaporator (190) is structured and arranged to circulate the supply water through the boiler (10). It evaporates and is superheated in superheating devices (120), energy-efficient devices (20) that act as heat exchangers. Where the heat was Transferred from the flue gas of the boiler to the supply water. And the supply water will be brought to the pot through Energy-saving devices (20), where energy-saving devices (20) are provided, there are at least two parts, which include at least one energy-efficient device (20a,) and at least one energy-saving device. One part of the second energy (20a2) the pre-heater brings the formed source (1) to it from the heat exchanger. Where heat energy is transferred from the steam released of the steam turbine directly or through the One in the middle of which is better is water. To the water supply And where the supply water is taken from the The first energy-saving device (20a1) goes to the supply water pre-heating device (14), where the supply water is pre-heated with the steam released to reserve a steam turbine. The heat is in the radiator (10) to the second energy-saving device section (20a2) and then in the form of steam to the evaporator (190) and the superheated heater (120) and passes. To the steam turbine (11) where the temperature of the supply water is continually raised when the supply water flows in the First energy-saving device (20a1), and from the first energy-saving device section (20a1) to the pre-heating device, bring the supply (14) and pass to the second energy-saving device section (20a2), where the other is connected. one (13a1.1) to be brought to the pre-heater, the source (14) shall be equipped with a valve (21) for controlling the flow of water released to the pre-heater (14) where the The steam flow released to the pre-heater (14) is controlled on the basis of temperature measurement, ie by measuring the temperature (T1 \ ', T2 \') of the flue gas flowing in the pipe. Flue gas (10a) and / or supply water temperature (T1 ", T2") in connector (19) 2. A unified structure according to the 1st claim, where the amount of steam that is released Also pre-heating device (14) is regulated by at least one (21) valve. 3.Methods for pre-heating of water supply for a steam turbine And in control of it, which includes the steps of; Conducting the supply water to the energy-saving apparatus (20) of the boiler (10) is provided with a combustion chamber (K), where heat is transferred in the heat exchanger. From flue gas to water supply, provide energy-efficient equipment (20) with its heat-exposed surface as The least part is in the flue gas pipe (10a) of the boiler (10), where the energy-saving equipment It consists of at least one part (20a1) and at least a second part (20a2). One and two parts thereof. (20a1), (20a2) are used to heat source water. Pre-heating of the first supply water is carried out with the help of energy. The heat is obtained from the flue gas of the boiler in the first energy saver section (20a1), pre-heating (14), water supply between the energy-saving equipment sections. (20a1), (20a2) where the pre-heating of the supply water is carried out with the help of thermal energy. Obtained from either direct or indirectly released steam Where the supply that is pre-heated with the help of the steam released is Take it to the second energy saver section (20a2) and then to the evaporator (190) and the superheating device (120) and then in the form of steam to the steam turbine (11) for rotation. Generator (G) and to generate electricity The constant increase in the temperature of the supply water as it flows is in the first energy-saving section (20a1) and from the first energy-saving section (20a2) to the pre-heating section (14) and from the section for Such pre-heating (14) goes to the second energy saver section (20a2) with a hotter supply water. Preheating air for combustion with Aid of the energy obtained from the steam that is released And to control the temperature of the supply water in the connector (19) by means of a remote control of the emitted steam that is made to flow to the equipment Pre-heat, the supply water (14), where the flow of steam released to the pre-heating device (14) is controlled on the basis of the temperature measurement, is By measuring the temperature (T1 \ ', T2 \') of the vented flue gas. Is in the flue gas pipe (10a) and / or the temperature of the supply water (T1 ", T2") in connector (19) 4. Method according to claim 3, where the amount of steam released in another connector (13a1.1) is regulated by a valve (21).