JPH06185307A - Heat utilizing power generating facility - Google Patents

Abstract

PURPOSE:To provide a heat utilizing power generating facility to improve a facility utilization factor and a fuel heat utilization. CONSTITUTION:In a power generating facility with a steam generator 1, a valve 3, a generator driven turbine 4, a condenser 7 and a pump 8 sequentially connected to each other, a regulating valve 12 and a heat utilizing power generator driven turbine 13 sequentially connected to each other from between the steam generator 1 and the valve 3 to between a pressure detector 16 of the condenser 7 and a controller 17 to send an opening operation signal of the valve to the regulating valve 12 in accordance with the excess steam amount by way of receiving output of the pressure detector 16 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-utilizing power generation facility for effectively utilizing surplus heat in a nuclear power plant or the like.

[0002]

2. Description of the Related Art A conventional example will be described with reference to FIGS.

In FIG. 1, a steam generator 1, a valve 3, a turbine (generator driving turbine) 4 having a generator 5, a condenser 7 and a pump 8 of a nuclear power plant are sequentially connected.

In the above, the steam 2 from the steam generator 1
Is supplied to the turbine 4 through the valve 3, works in the turbine 4, and then flows into the condenser 7 as the exhaust gas 6. Here, it becomes water and is sent by the pump 8 and is supplied to the steam generator 1 as water supply 9. The turbine 4 drives a generator 5 to generate electricity.

[0005]

SUMMARY OF THE INVENTION In the above conventional example,
When the output of the steam generator 1, that is, the thermal output of the reactor is 100%, the output of the turbine 4 is the output of the turbine shown in FIG. 3 depending on the pressure (vacuum degree) of the condenser 7. It is possible to operate up to the line. What if the condenser pressure is high in summer and low in winter, and the pressure of condenser 7 becomes low,
This is because the turbine power output is generally increased. But,
In reality, since the turbine 4 cannot be operated at the authorized output, that is, the rated output or more, the difference between the line of the turbine's possible output shown in FIG. 3 and the line of the rated output of the turbine (hatched portion) is the surplus steam amount. Become. That is, for the rated output operation of the turbine 4, there is an excessive amount of steam, and the reactor heat output is reduced by this amount for operation.

[0006] Therefore, the amount of surplus steam is generated during the period other than summer, and conventionally, there is a problem that the output of the nuclear reactor is reduced during the period other than summer and the facility utilization rate is poor. There is also a problem that the thermal efficiency also deteriorates.

[0007]

The present invention takes the following means in order to solve the above problems.

That is, in a power generation facility in which a steam generator, a valve, a generator driving turbine, a condenser and a pump are sequentially connected, an adjustment is sequentially connected between the steam generator and the valve and the condenser. A valve and a heat utilization generator drive turbine, a pressure detector of the condenser, and a controller that receives the output of the pressure detector and sends a valve opening operation signal according to the amount of surplus steam to the adjustment valve. Set up.

[0009]

In the above means, the pressure detector detects the pressure of the condenser and sends it to the controller. The controller calculates the amount of surplus steam from the input and calculates and outputs a valve opening operation signal that bypasses the amount of surplus steam. The regulator valve receives this signal and opens the valve in response to the input. Then, the surplus steam amount from the steam generator is sent to the steam-utilizing generator driving turbine, drives the turbine, and then enters the condenser.

As described above, the surplus steam amount exceeding the rated output of the generator-driven turbine is always converted into electric power by the steam-utilized generator-driven turbine and is effectively used.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. It should be noted that the parts described in the conventional example are denoted by the same reference numerals and the description thereof is omitted, and the parts relating to the present invention will be mainly described.

A regulating valve 12 and a steam-utilizing generator driving turbine 13 are sequentially connected via a pipe 10 branching from a pipe between the steam generator 1 and the valve 3. Turbine 1
The exhaust gas of No. 3 is sent to the condenser 7 by the pipe line 11.

The condenser 7 is provided with a pressure detector 16,
The output is sent to the regulating valve 12 via the controller 17.

In the above, the pressure detector 16 is the condenser 7
Is detected and sent to the controller 17. The controller 17 calculates the amount of surplus steam from the input and arithmetically outputs the valve opening operation signal 18 that bypasses the amount of surplus steam. The regulating valve 12 receives this signal 18 and the valve is opened in response to the input. Then, the amount of surplus steam from the steam generator 1 is sent to the steam-utilizing generator driving turbine 13, drives the turbine 13, and then enters the condenser 7.

With the above operation, when the condenser pressure is high in the summer, the regulating valve 12 is closed and the steam 2 all flows into the turbine 4. Except during summer, the amount of excess steam generated due to the low pressure of the condenser flows into the turbine 13 via the regulating valve 12 and is generated by the generator 14. As a result, the surplus steam amount can be effectively used.

Although the condenser 7 is commonly used in the above,
A dedicated condenser may be provided.

[0017]

As described above, when the condenser pressure is low except during the summer, conventionally, the heat output of the reactor was reduced by the amount of the excess steam, and the present invention was used. According to this, this surplus steam amount is sent to the heat utilization generator driving turbine and is effectively utilized. The output of the steam generator is always 100
There is an advantage that it is possible to operate at%, and the facility utilization rate can be improved.

[Brief description of drawings]

FIG. 1 is a configuration system diagram of an embodiment of the present invention.

FIG. 2 is a configuration system diagram of a conventional example.

FIG. 3 is an explanatory diagram of a relationship between a condenser pressure and a turbine output in the conventional example.

[Explanation of symbols]

 1 Steam Generator 3 Valve 4 Generator Drive Turbine 5 Generator 7 Condenser 8 Pump 12 Regulator Valve 13 Heat Utilization Generator Drive Turbine 14 Generator 16 Pressure Detector 17 Controller

Claims (1)

[Claims] 1. A steam generator, a valve, a generator-driven turbine,
In a power generation facility in which a condenser and a pump are sequentially connected, a regulating valve and a heat utilization generator driving turbine that are sequentially connected between the steam generator and the valve and between the condenser, and the pressure of the condenser. A heat-utilizing power generation facility comprising a detector and a controller that receives the output of the pressure detector and sends a valve opening operation signal corresponding to the amount of excess steam to the adjusting valve.