SU1150382A1 - Steam turbine plant (versions) - Google Patents

Abstract

1. A steam turbine unit containing a steam turbine, a condenser with a condensate collector, communicates with the suction pipe of the condensate pump and at least two network water preheaters communicated through the drainage of the heating steam from the suction pipe of the drainage pump pipelines, and the pressure condensate pipelines and drainage pumps of the drainage pipe are provided with drainage pump pipelines of the drainage pumps, and the pressure condensate pipelines and drainage pumps of the drain pipe are provided with drainage pump pipelines of the drainage pumps, and the pressure condensate pipelines and drainage pumps of the drainage pump are provided with drainage pump pipelines. regeneration, characterized in that, in order to increase efficiency by reducing the number of pumps, the suction and pressure pipelines of each drainage pump They are connected with suction and pressure manifolds with shut-off valves, respectively, with the suction and discharge pipes of the condensate pump. 2. A steam turbine unit containing a steam turbine, a condenser with a condensate trap communicated with the suction pipe of the condensate pump, at least two network water heaters communicated through the drainage of the heating steam with the suction pipes of the drainage pumps, and the pressure pipes of the condensate and drainage pumps are connected to the system regeneration, characterized by the fact that, in order to increase efficiency by reducing the number of pumps, suction and discharge pipelines of drainage pumps enes respectively vsasyvakschim napornm collectors and with isolation valves to each other.

Description

The invention relates to a power system and can be used in heat schemes for heat and power generation turbines.

The purpose of the invention is to develop the eco-comicity of a steam turbine plant.

FIG. 1 shows a diagram of a steam turbine installation, the first option; in fig. 2 - the same, the second option.

The steam turbine plant in the first embodiment contains a steam turbine 1, a condenser 2 with a condensate collector 3, connected through a valve 4 with a suction pipe 5c to a condensate pump 6 of condensate 2, and through a valve 7 with a suction collector 8,

The heater 9 of the supply water through the pipe 10, the valve 11 on the intake manifold 8 and the suction pipe 12 is connected to the drainage pump 13.

The heater 14 mains water through the valve 5 and the suction pipe 16 connect it with a drainage pump 17 and suction manifold 8 with the valve 18.

The heater 14 of the network water by the condensate line 19 is connected to the heater 9 of the network water (the heater 9 is connected by the steam pipe 20 to the steam turbine 1), and by the steam pipe 21 to the steam turbda 1.

Condensation and pump 6 of condenser 2 through pressure pipe 22, valve 23 and pipe 24 are connected to turbine generation system 1, and through valve 25 to a pressure collector 26.

The drainage pump 13 preheater 9 of the network water is connected by a pressure pipe 27 to a pressure collector 26 and through a valve 28 n pipe 29 to the re-drainage system turbnmy 1.

Drainage pump 13 preheater 9 network water is connected to a pressure manifold 26 through edomki 30 and 31 and pipe 32 with the system of regeneration of the turbine t.

The steam turbine plant in the second embodiment comprises a steam turbine 1 and a condenser 2 with a condensate collector 3 connect through a valve 4 in. A suction pipe with a condenser pump 6 of the condenser 2.

The heater 9 of the network water through the pipeline 10, the valve 11 and the suction pipe -12 is connected to the drainage pump 13.

The heater 14 of the network water through the valve 15 and the suction pipe 16 is connected to the drainage pump 17. The suction pipe 16 of the drainage pump 17 by the suction header 8 through the valve 18 is connected to the suction pipe 12 of the drain pump 13. The heaters 9 and 14 are connected by a condensate pipe 19 and connected to a steam turbine, respectively, steam lines 20 and 21.

The condensate pump 6 through the discharge pipe 22, the valve 23 and the pipe 24 is connected to a regeneration system (not shown) of the turbine 1.

The discharge pipe 27 of the drainage pump 13 is connected via the pressure manifold 26 to the discharge pipe 33 of the drainage pump 17, which through the valve 31 and the pipe 32 is connected to a turbine regeneration system. The drainage pump 13 is connected to the regeneration system of the turbine through the pipeline 29.

Steam turbine installation in the first embodiment is as follows.

In the heat extraction mode, the heaters 9 and 14 of the network water are working, the Condensate pump 6 and the drainage pumps 13 and 17. The valves 7, 18, 25 and 30 are closed, the others are open. The condensate from the condenser 2 through the condensate trap 3, the valve 4 and the suction pipe 5 enters the Condensate pump 6 and is pumped to the regeneration system of the turbine 1 through the pressure pipe 22 of the valve 23 and pipe 24.

Condensate from the preheater 9 mains water is passed through conduit 10 through valve 11, suction manifold 8 and suction pipe 12 to drainage pump 13, condensate through discharge conduit 27, pressure collector 26 and piping 29 are fed to the regeneration system of the turbine 1,

The condensate from the heater 14 mains water through the valve 15 and the suction pipe 16 enters the drainage pump 17, the condensate through the valve 31 and the pipe 32 is fed into the regeneration system of the turbine 1. When the drainage pump 17 comes out of operation, it stops and condensate from the network water heater through condensate line 1 enters the network water heater 9 and is then pumped along with the condensate of network water heater 9 by the drain pump 13 through pipe 29 to the turbine regeneration system. In case of emergency exit from the operation of the drainage pump 13. close the valves 11,15,28 and 31, open the valves 18 and 30 and the condensate from the network water heater 14 through the condensate line 19 enters the network water heater 9, and from it all the condensate through pipe 10 , the suction manifold 8, the valve 18 and the suction pipe 16 enters the drainage pump} 7, which is over the pressure manifold 26 with the valve ZOI pipe 29 and the condensate is pumped to the turbine regeneration system. When the emergency operation of the condensate pump 6 is closed, the valves 4, II, 15, 23, 28 and 31 are closed and the valves 7, 18, 25 and 30 are opened. The condensate from the condenser 2 through the condensate drain valve 3, the valve 7, the suction manifold 8, the suction pipe 12 enters the drainage pump 13 through which the condensate is transferred to the turbine regeneration through the pressure turbine 27, the pressure manifold 2, the valve 25 and the pipeline 24. In this case, the condensate from the network water heater 14 enters the network water heater 9, from where it is pumped By the drain pump 17, as described above, through the steam line 20 to the turbine regeneration system I In condensation mode, the heaters 9 and 14 of the mains water do not work, therefore any of the drainage pipes can be used to transfer the condensate from the condenser 2 through the pipe 24 to the system .regeneration. Thus, this installation option provides the necessary reliability. Steam turbine installation according to the second option is as follows. In the heat extraction mode, heaters 9 and 14 of the supply water, drainage pumps 13 and 17 and one of two condensate pumps 6 operate. Condensate from condenser 2 through condensate collector 3, valve 4 and suction pipe 5 enters condensate pump 6, which through valve 23 and pipeline 22, condensate is fed to the regeneration system of the turbine t. Condensate from the preheater 9 of the supply water enters through the pipeline 10 through the valve 11 and the suction pipe 12 into the drainage pump 13, which through the discharge pipe 27, the valve 25 and the pipe 29 condensate is pumped to the regeneration system of the turbine 1. The condensate from the heater 14 of the water flows through the valve 15 and the suction pipe 16 to the drainage pump 17, through the pressure pipe 33, the valve 31 and the pipe 32, the condensate is fed to the regeneration system of the turbine 1. When an emergency exit from the work of the drainage pump 17 n and the condensate from the preheater of the supply water 14 through the condensate; the remote control 19 enters the preheater 9 of the supply water and together with the condensate of the preheater 9 the drainage pump 13 through the pipe 29 the condensate is pumped to the regeneration system of the turbine 1. When the emergency exit from the drainage pump 13 it stops , the valves t1, 15, 25 and 31 are closed, the valves 18 and 34 open, the condensate from the network water heater 14 goes through the condensate line 19 to the network water heater 9, and from it through the suction collector 8 Izhk 18 and suction pipe 16 - to a drainage pump t7, which through the discharge pipe 33, the valve of the pressure manifold 26 and the pipe 29 condensate is pumped to the turbine regeneration system 1. In case of emergency exit from the operation of the condensate pump 6 in the heating and condensation modes, the pump stops and turns on the second (backup) condensate pump 6 (not shown). Thus, the second version of the steam turbine installation provides the necessary reliability.

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Claims (2)

STEAM TURBINE INSTALLATION (ITS OPTIONS). 1. A steam turbine installation comprising a steam turbine, a condenser with a condensate collector communicated with the suction pipe of the condensate pump, and at least two network water heaters communicated through the drainage of the heating steam with the suction pipelines of the drain pumps, and pressure pipes of the condensate and drain pumps are connected to the system regeneration, characterized in that, in order to increase efficiency by reducing the number of pumps, the suction and pressure pipes of each drainage pump scheny suction and discharge manifold with isolation valves, respectively, to the suction and discharge truboprovo rows condensate pump. 2. A steam turbine installation comprising a steam turbine, a condenser with a condensate collector in communication with a suction pipe of a condensate pump, at least two network water heaters communicated through drainage. Heating steam with suction pipes of drainage pumps, moreover pressure pipes of a condensate and drainage pumps connected to the regeneration system, characterized in that, in order to increase efficiency by reducing the number of pumps, the suction and pressure pipelines of the drainage pumps are connected to GOVERNMENTAL response suction and discharge manifold with isolation valves to each other.