JPH0220439Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a combustion amount control device for a turbo combustor, and aims to provide a combustion amount control device that can adjust the combustion amount over a wide range.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The combustion amount control device for a turbo combustor of the present invention (hereinafter referred to as the device of the present invention) will be described below with reference to embodiments shown in the drawings.

FIG. 1 shows the device of the invention together with a turbo combustor, which includes a combustion chamber 1 surrounded by a water chamber 2.
has.

A gas supply source is connected to the inlet of the combustion chamber 1 via a gas path 4 and a turbo fan 7.

On the other hand, the inlet of the combustion chamber 1 is connected to the atmosphere via an air passage 5 and a turbo fan 8.

Further, the outlet of the combustion chamber 1 is connected to the inlet of the gas turbine 9 via an exhaust gas path 13.

The gas turbine 9 is connected to turbofans 7, 8 by a shaft 11.

Further, the outlet of the gas turbine 9 is connected to an exhaust port 18 via an exhaust gas path 17 and a heat exchanger 19.

Also, the inlet and outlet of the gas turbine 9 are equipped with flow rate regulating valves 28.
It is bypassed by a bypass path 15 equipped with a.

On the other hand, the inlet of the water chamber 2 is connected to a water supply source via a water channel 21.

In addition, the water chamber 2 outlet is connected to a heat exchanger 19 via a water channel 22.
connected to.

Furthermore, the heat exchanger 19 is connected via a water channel 23 to a hot water inlet 24 having a valve 25 .

Next, a controller 26 is provided, which has a temperature sensor 27 that detects the temperature of the hot water at the outlet of the heat exchanger 19 as an input, and the flow rate regulating valve 28 as an output.

The operation of the apparatus of the present invention shown in the above embodiments will now be explained together with the operation of the turbo combustor.

That is, when the turbo combustor operates, gas pressurized by the turbo fan 7 and air pressurized by the turbo fan 8 are combusted in the combustion chamber 1 (ignited by the spark plug 3).

The combusted and expanded exhaust gas is guided to the gas turbine 9 and rotates it, and this rotation is used as rotational power for the aforementioned turbo fans 7 and 8.

Exhaust gas flows from the gas turbine 9 to the exhaust gas path 17
and is discharged from the exhaust port 18 through the heat exchanger 19.

On the other hand, water supplied from the hot water supply source to the water chamber 2 is heated here, the temperature rises, it becomes hot water, and is led to the heat exchanger 19 through the water channel 22.

The hot water is further heated in the heat exchanger 19 and made available for use from the hot water supply port 24.

The turbo combustor operates as described above, and the temperature of the hot water detected by the temperature sensor 27 at the outlet of the heat exchanger 27 is compared with the temperature set by the user by the controller 26.

In this case, if the temperature of the hot water detected by the temperature sensor 27 is higher than the set temperature, the controller 26 will open the flow rate regulating valve 28.

As a result, part of the exhaust gas in the exhaust gas path 13 flows through the bypass path 15, and as a result, the gas turbine 9
The flow rate of exhaust gas flowing through is reduced.

As a result, the rotation speed of the gas turbine 9 and the flow rate of gas and air sucked by the turbo fans 7 and 8 decrease, and the amount of combustion in the combustion chamber 1 decreases.

As a result, the temperature of the hot water at the outlet of the heat exchanger 19 is reduced and controlled.

On the contrary, if the temperature of the hot water detected by the temperature sensor 27 is lower than the set temperature, the controller 26 reduces the opening degree of the flow rate regulating valve 28 (closes at the maximum).

As a result, the rotational speed of the gas turbine 9 and the amount of combustion in the combustion chamber 1 increase, and the temperature of the hot water at the outlet of the heat exchanger 19 increases.

The apparatus of the present invention may have the following configuration other than that shown in the above embodiments.

That is, in the above embodiment, the flow rate regulating valve 2
Controller 26 to automatically adjust the opening degree of 8.
and a temperature sensor 27.

However, if the opening degree of the flow rate regulating valve 28 is manually adjusted, the controller 26 and the temperature sensor 27 are unnecessary.

The turbo combustor combustion amount control device of the present invention has the following effects in the configuration and operation shown in the above embodiments.

(1) The device of the present invention has the configuration described in the scope of the utility model registration claim, and in particular, since a flow rate regulating valve is installed in the bypass passage that bypasses the gas turbine inlet and outlet, by adjusting the opening degree of the flow rate regulating valve, the turbo The amount of combustion in the combustor can be adjusted over a wide range.

(2) The device of the present invention has the same configuration as above, and in particular adjusts the amount of combustion by adjusting the opening degree of the flow rate regulating valve to adjust the rotation speed of the gas turbine and the flow rate of gas and air sucked in by the turbo fan. Therefore, the ratio of gas to air (air-fuel ratio) is always constant regardless of the amount of combustion, which is extremely convenient.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram showing the device of the present invention together with a turbo combustor. 1... Combustion chamber, 2... Water chamber, 3... Spark plug, 4...
Gas path, 5...Air path, 7...Turbo fan, 8...Turbo fan, 9...Gas turbine, 11...Shaft, 13
...Exhaust gas path, 15...Bypass path, 17...Exhaust gas path, 18...Exhaust port, 19...Heat exchanger, 21 to 23...Waterway, 24...Hot water supply port, 25...Valve, 26...Controller, 27...Temperature sensor , 28...Flow rate adjustment valve.

Claims (1)

[Scope of utility model registration request] A combustion chamber surrounded by a water chamber, a turbo fan provided between the combustion chamber inlet and a gas supply source, another turbo fan provided between the combustion chamber inlet and the atmosphere, and a combustion chamber outlet and a heat source. A combustion amount control device for a turbo combustor, which comprises a gas turbine provided between an exchanger and connected to the turbo fan by a shaft, and a bypass passage that bypasses the inlet and outlet of the gas turbine and is equipped with a flow rate regulating valve.