WO2013069111A1 - Gas turbine electricity generation device and operating method therefor - Google Patents

Abstract

Provided are a gas turbine electricity generation device, and an operating method therefor, with which the output can be improved by spraying heated water obtained with the heat energy of solar heat, and with which stable operation can be obtained. This gas turbine electricity generation device (S) is equipped with: a compressor (2) that compresses air; a combustor (4) that burns a fuel and compressed air from the compressor (2); a gas turbine (1) that is driven by the combustion gas from the combustor (4); an electricity generation device (3) that is connected to the gas turbine (1) via a shaft (1j), and that is driven by the rotation of the gas turbine (1); a heat exchanger (705) that exchanges heat with a heat medium (w2) that has been heated using solar heat; heat storage tanks (703, 704) that store the heat medium (w2); a first bypass line (b3) that bypasses a circulation path that is on the to-be-heated side and is formed with the heat exchanger (705); a first adjustment valve (717) that adjusts the flow volume of the first bypass line (b3); and a suction air cooling chamber (5) for spraying into the air in the compressor (2), by means of spray nozzles (6), heated water (w4) that has been heated by the heat exchanger (705).

Description

Gas turbine power generator and operation method thereof

The present invention relates to a gas turbine power generator that uses high-humidity air in a power generator using a gas turbine, and an operation method thereof.

2. Description of the Related Art Conventionally, thermal power plants have an apparatus for generating electricity by burning coal or heavy oil in a boiler, generating steam using the combustion heat, driving a steam turbine, and generating electrical energy from rotational energy. . In addition, the air is compressed by a compressor, the compressed air is burned by the combustor, the gas turbine is driven by the combustion air, and the gas turbine power generation device that generates electric power or the exhaust gas burned by the gas turbine is reused. There is a high-efficiency combined cycle power generation device that generates steam in an exhaust heat recovery boiler and drives the steam turbine using the steam.

In a power generator equipped with a gas turbine, when the inlet side intake air temperature increases, the kinetic energy of the molecules of combustion air increases, the density thereof decreases, and the mass flow rate decreases. For this reason, it is known that the energy applied to the gas turbine decreases and the output of the gas turbine decreases.
Therefore, in operation in summer when the outside air temperature becomes high or in operation in a region where the outside air temperature is originally high, the output may be lower than the rated output. Therefore, by spraying water at the compressor inlet upstream of the gas turbine, the temperature is lowered by the latent heat of vaporization of the mist to prevent a decrease in mass flow rate, and a device for maintaining the rated output even when the outside air temperature is high And methods have been devised.

In recent years, power generation using natural energy has attracted attention from the viewpoint of reducing carbon dioxide. In particular, photovoltaic power generation or power generation using solar heat is rapidly spreading.
In Patent Documents 1 and 2, steam obtained by recovering the thermal energy of the combustion exhaust gas of the gas turbine is mixed with the air for the gas turbine fuel, and the turbine is made of the high humidity combustion exhaust gas obtained by the combustor. A gas turbine cycle that realizes an improvement in output (electric power) and power generation efficiency by driving is described.

JP 57-79225 A Japanese Patent Laid-Open No. 58-101228

By the way, in order to obtain large-capacity power generation, solar power generation requires a large installation space in order to secure required power because the energy density per installation space of the energy supply source is low.
Power generation using solar heat is a use of heat supply to an existing power plant rather than power generation alone, and it requires a large amount of energy to obtain high-temperature and high-pressure steam. As with solar power generation, a large installation space is required.

On the other hand, as described above, in order to obtain a desired output (electric power) or power generation efficiency, it is necessary to inject a large amount of water into the compressed air supplied to the combustor upstream of the gas turbine. As a result, the compressed air contains moisture and the concentration of oxygen is lowered, or a large amount of water may cause the temperature to fall below the ignition point, resulting in instability of combustion.

In particular, in a power generator using a gas turbine, in order to reduce NOx (nitrogen oxide) contained in combustion exhaust gas, premixed combustion of air and fuel having a narrow stable combustion range is performed, so that unstable combustion is caused. The impact is great.
Since the methods described in Patent Documents 1 and 2 both use a large amount of water, it is difficult to cope with the problem of unstable combustion.

In view of the above circumstances, an object of the present invention is to provide a gas turbine power generator capable of improving output by spraying hot water obtained from solar thermal energy and capable of stable operation, and an operation method thereof.

A gas turbine power generator according to claim 1 of the present invention is driven by a compressor that compresses air, a combustor that combusts compressed air and fuel from the compressor, and a combustion gas of the combustor. A gas turbine, a generator connected to the gas turbine via a shaft and driven by rotation of the gas turbine, and a heat exchanger for exchanging heat with a heat medium heated using solar heat, A heat storage tank that stores a heat medium; a first bypass line that bypasses a heated-side circulation path formed by the heat exchanger; a first adjustment valve that adjusts a flow rate to the first bypass line; and the heat A gas turbine power generator comprising: an intake air cooling chamber for spraying hot water heated by an exchanger onto the air of the compressor by a spray nozzle.

A gas turbine power generator according to claim 11 of the present invention is driven by a compressor that compresses air, a combustor that combusts compressed air and fuel from the compressor, and a combustion gas of the combustor. A gas turbine, a generator connected to the gas turbine via a shaft and driven by rotation of the gas turbine, a heat exchanger, a heat storage tank for storing a heat medium, and the heat exchanger. A first bypass line for bypassing the heated side circulation path, a first adjustment valve for adjusting a flow rate to the first bypass line, a spray nozzle for spraying hot water on the air, and the air to the compressor An operation method of a gas turbine power generator comprising an intake air cooling chamber to be sent, wherein a circulation formed by a heat exchanger by the first regulating valve until a heat medium heated using solar heat reaches a predetermined temperature. A path is bypassed using the first bypass line, the heat storage tank stores the heat medium reaching the predetermined temperature, and produces the hot water by heat exchange with the heat medium by the heat exchanger. In the intake cooling chamber, the hot water heated by the heat exchanger by the spray nozzle is sprayed on the air.

According to the present invention, it is possible to improve the output by spraying the hot water obtained by the thermal energy of solar heat, and stable operation is possible.

It is a figure which shows the main apparatuses of the gas turbine electric power generating apparatus of embodiment which concerns on this invention. It is a figure which shows the gas turbine power generator including the main equipment of embodiment, and an operating method. It is a figure which shows the actual value data table of embodiment. It is a figure which shows the predicted value data table of embodiment. It is a figure which shows the information (data) preserve | saved in the driving | operation information database of embodiment. It is a figure which shows the model which estimates the temperature of the fluid discharged from a solar thermal collector using the data stored in the predicted value data table stored in the related information database of embodiment. It is a flowchart which shows the processing operation in the driving | running condition determination part of embodiment. It is a figure which shows the data processor GUI screen of the initial screen displayed on the image display apparatus of embodiment. It is a figure which shows the driving | running state display screen which is a driving | running state display screen of embodiment. It is a figure which shows the trend display setting screen for displaying trends, such as a measured value and each item with progress of time of embodiment, on an image display apparatus. It is a figure which shows the trend display screen on which the trend graph of embodiment is displayed.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram showing a main device of a gas turbine power generator according to an embodiment of the present invention.
The gas turbine power generation device S of the embodiment is a device having a function and an operation method for improving the power generation output by spraying hot water w4 heated by solar heat onto the air sent to the compressor 2.
The gas turbine power generator S includes a hot water generator 700 that generates hot water w4 by solar heat, and a gas turbine power generation facility 100 that generates power by driving the gas turbine 1 with compressed exhaust gas sprayed with the hot water w4 and combustion exhaust gas. It is equipped with.

The gas turbine power generation facility 100 includes a compressor 2 that compresses air (intake air) sprayed with hot water w4 and outputs the compressed air, a combustor 4 that combusts fuel with the compressed air supplied from the compressor 2, and a combustor. 4 is provided with a gas turbine 1 driven by combustion exhaust gas from 4, and a generator 3 connected to the gas turbine 1 via a gas turbine shaft 1j.
Further, the gas turbine power generation device S includes a hot water generator 700 that heats water to warm water w4 by solar heat, an intake air cooling chamber 5 that cools air (intake air) sent to the sucked compressor 2, and an intake air cooling chamber 5 And a spray nozzle 6 for spraying hot water w4 heated by the hot water generator 700.

Next, the effect | action which improves an output in this gas turbine electric power generating apparatus S is demonstrated.
By spraying the hot water w4 heated by solar heat into the air (intake air) sucked from the spray nozzle 6 in the intake air cooling chamber 5, a part of the mist evaporates, and the air (intake air) by the latent heat of evaporation at that time ). The cooled air (intake air) enters the compressor 2.

When air (intake air) is cooled, the kinetic energy of gas molecules (N ₂ , O ₂ ) decreases and the density thereof increases, so the mass flow rate of air entering the compressor 2 increases. Due to this effect, the energy applied to the gas turbine 1 is increased by increasing the mass flow rate of the combustion exhaust gas sent from the combustor 4 and hitting the turbine blades. Thereby, the output of the gas turbine 1 will increase.

Compared to the conventional technology, the advantage of using warm water is that spraying warm water causes the fog of warm water to drop from high temperature and pressure to atmospheric pressure, so the boiling point suddenly becomes low and boiling under reduced pressure occurs. Therefore, the sprayed fine water droplets evaporate all at once, and the fine water droplets sprayed by evaporation become further fine particles.
Accordingly, since more spray water can be sprayed from the spray nozzle 6, the evaporation phenomenon is promoted, and the temperature is further lowered by the latent heat of evaporation, thereby increasing the density of the intake air.

Therefore, the mass flow rate can be further increased, and further output improvement can be achieved by spraying warm water.
Further, since the sprayed fine water droplets are further finely divided, the generation of drain and rust caused by the combustion exhaust gas colliding with the turbine blades of the gas turbine 1 can be suppressed as much as possible.

<Hot water generator 700>
The hot water generator 700 that absorbs solar heat absorbs the heat from the sun into the first working fluid w1 that flows in the heat collecting pipe (not shown), and increases the temperature of the first working fluid w1 by the solar heat collecting device 701. It has.
In the hot water generator 700, the heat medium oil of the first working fluid w1 and the second working fluid w2 whose temperature is increased by solar heat (hereinafter, the second working fluid w2 will be described as the heat medium oil w2) and First heat exchanger 702 that performs heat exchange in the first, second and second heat storage tanks 703 and 704 that store the heat transfer medium oil w2 that has reached a high temperature, a water supply tank 706 that stores the water w3, and a heat transfer medium A second heat exchanger 705 is provided that performs heat exchange between the oil w2 and the water w3 from the water supply tank 706 to obtain hot water w4 for spraying.

Furthermore, the hot water generator 700 is provided with adjusting valves 711 to 718 for opening and closing the flow path of the hot water generator 700 and pumps 721 to 725 for sending the working fluid (w1, w2, w3, w4). The regulating valves 711 to 718 and the pumps 721 to 725 operate by receiving a control signal 130 from a control device 200 (see FIG. 2) described later.

The operation of the hot water generator 700 will be described.
The working fluid w1 delivered by the pump 721 flows through a heat collecting tube (not shown) by the solar heat collector 701 and is heated by solar heat. Here, heat transfer oil is used as the working fluid w1.
The first working fluid w1 and the second working fluid w2 exemplify the case where oil (heat medium oil) is used, but the first and second working fluids w1 and w2 are heat medium oil. Alternatively, water may be used. However, the first and second working fluids w1 and w2 are preferably oils whose pressure increase is slower than water even at high temperatures. The first and second working fluids w1 and w2 may use a heat medium other than the heat medium oil. However, a heat medium is selected that has a gradual rise in pressure even at high temperatures and low viscosity at low temperatures. Keep in mind that

Next, the heat medium oil w2 circulated by the pumps 722 and 723 rises in temperature by exchanging heat with the working fluid w1 heated by solar heat in the first heat exchanger 702. When the heat transfer oil w2 is heated by the heat exchanger 702, it always passes through the first heat storage tank 703. Thereby, the heat medium oil w2 of a predetermined temperature can always heat the water w3 sent from the water supply tank 706 by the second heat exchanger 705 with an amount within the capacity of the heat storage tank 703.

The feed water (water w3) fed from the feed water tank 706 to the second heat exchanger 705 by the pump 724 is heated by heat exchange with the heat transfer oil w2 in the second heat exchanger 705 and heated at a predetermined temperature. Heated to w4. The hot water w4 having a predetermined temperature is pressurized by the booster pump 725 and sprayed from the spray nozzle 6 into the intake cooling chamber 5.
The regulating valves 711, 714, 717 are operated when controlling the state of the operating fluid (w1, w2, w3, w4) during operation or in an emergency.

For example, the regulating valve 711 is used when the temperature of the working fluid w1 heated by the solar heat collecting apparatus 701 does not reach a predetermined temperature used in the first heat exchanger 702 or when the heat in the first heat exchanger 702 is reached. When the exchange is not performed, the flow path from the solar heat collecting apparatus 701 is set to the bypass line b1 side instead of the first heat exchanger 702 side. On the other hand, when the temperature of the working fluid w1 heated by the solar heat collector 701 reaches a predetermined temperature used in the first heat exchanger 702 and heat exchange is performed in the first heat exchanger 702. The flow path from the solar heat collecting apparatus 701 is not the bypass line b1 side but the first heat exchanger 702 side.

When the temperature of the heat transfer oil w2 has not reached the temperature used for the second heat exchanger 705 or when the second heat exchanger 705 is not used, the regulating valve 714 Not on the 705 side but on the bypass line b2 side. On the other hand, when the temperature of the heat transfer oil w2 reaches the temperature used for the second heat exchanger 705 and the second heat exchanger 705 is used, the second heat exchanger 705 is not the side of the bypass line b2 but the second heat exchanger 705. Let it be the heat exchanger 705 side.

When the water w3 heated on the second heat exchanger 705 side does not reach a predetermined temperature or when the warm water w4 is not sprayed from the spray nozzle 6, the regulating valve 717 is not on the spray nozzle 6 side but on the water supply tank 706 side. Open the flow path. On the other hand, when the water w3 heated on the second heat exchanger 705 side becomes hot water w4 having a predetermined temperature and the spray of the hot water w4 from the spray nozzle 6 is performed, the regulating valve 717 is not on the water supply tank 706 side. A flow path is opened on the spray nozzle 6 side.
The regulating valves 712, 713, 715, 716 are operated when accumulating or releasing the amount of heat obtained by the solar heat collecting apparatus 700.

For example, when accumulating the amount of heat obtained by the solar heat collector 700, the flow paths of the regulating valves 712, 713, 715, 716 are opened, and the first heat exchange tanks 703, 704 perform the first heat exchange. The high-temperature heat transfer oil w2 heated by the vessel 702 is stored. On the other hand, when the amount of heat obtained by the solar heat collecting apparatus 700 is released, the high-temperature heat transfer oil w2 stored in the first and second heat storage tanks 703 and 704 is adjusted to the regulating valves 712, 713, 715, and 716. Is opened, discharged to the second heat exchanger 705, and the water w3 is heated.

The operation methods of these regulating valves 711 to 718 and pumps 721 to 725 will be described in detail later.
In this embodiment, although the example of an apparatus provided with two heat exchangers (702, 705) and two heat storage tanks (703, 704) was shown, it is not limited to this. That is, the number of heat exchangers and the number of heat storage tanks can be arbitrarily selected, and the arrangement thereof can be arbitrarily selected.
For example, one heat exchanger 705 or one heat storage tank 703 may be used. Or you may employ | adopt the form which connected the 1st heat storage tank 703 and the 2nd heat storage tank 704 in series.

<Operation Method of Gas Turbine Generator S>
Next, an operation method of the gas turbine power generation device S including main equipment will be described.
FIG. 2 is a diagram showing a gas turbine power generation apparatus including main components of the embodiment and an operation method thereof.
The hot water generating device 700 of the gas turbine power generation device S and the gas turbine power generation facility 100 are operated (controlled) by the control device 200.

An operation command to the hot water generation device 700 and the gas turbine power generation facility 100 and an operation state display of the hot water generation device 700 and the gas turbine power generation facility 100 are performed using the support tool 910.
The gas turbine power generation facility 100 receives the control signal 150 from the control device 200 and is controlled to a desired state. The state quantity of each part of the gas turbine power generation facility 100 is captured (transmitted) into the control device 200 as a measurement signal 140.

The control device 200 performs control by operating various operation ends so as to be in an appropriate operation state with respect to the power generation request based on the measurement signal 140 from the gas turbine power generation facility 100. Since this control method is based on a known technique, the relationship with the hot water generator 700 of the gas turbine power generation facility 100 will be described here.

Based on the measurement signal 120 from the hot water generator 700, the adjustment valves 711 to 718 are adjusted so that the gas turbine power generation facility 100 is in an appropriate operating state, and the working fluid w1 and the heat medium are heated by the solar heat of the solar heat collector 701. A control signal 130 is output so as to supply the intake water cooling chamber 5 with an appropriate amount of hot water w4 having a predetermined temperature heated via the oil w2. The predetermined temperature is, for example, about 150 ° C., but is not limited to about 150 ° C.

The related information database 300 stores information for use in determining the operating conditions of the gas turbine power generation facility 100 and the hot water generator 700.
The operation information database 600 stores measurement signals 140 and 120 obtained from the gas turbine power generation facility 100 and the hot water generator 700, respectively.

In the operating condition determination unit 400, the hot water generator 700 and the gas turbine are based on information obtained from the measurement signals 120 and 140 and data necessary for determining the operating conditions of the gas turbine power generation facility 100 and the hot water generator 700. The operation state of the power generation facility 100 is determined (calculated). Here, the data necessary for determining the operating condition includes, for example, information on sunshine data when the outside air temperature or solar heat is used. Details of these data will be described later.

The control unit 500 receives the determination result of the operating condition determination unit 400 (input information of the determination result) and outputs an appropriate control signal 130 according to the determination result to the hot water generator 700.
Based on the control signal 130, the regulating valves 711 to 718 and the pumps 721 to 725 in the hot water generator 700 are controlled. The signals (130, 150) and information generated in the control device 200 are also output to the support tool 910 as necessary. The determination result by the operating condition determination unit 400 and the algorithm for obtaining the control signals 130 and 150 will be described in detail later.

A user related to the gas turbine power generation facility 100 can visually check various information regarding the gas turbine power generation facility 100 and the hot water generator 700 on the image display device 950 by using the support tool 910.
The support tool 910 includes an external input / output interface 920, a data transmission / reception processing unit 930, and an external output interface 940.

The support tool 910 is connected to an input device 900 that includes a keyboard 901, a mouse 902, a touch panel, and the like, and an image display device 950 that is an output device.
Further, the user can access information in the control device 200 by using the support tool 910 using the input device 900.

The input signal 800 generated by the input device 900 is received by the support tool 910 via the external input / output interface 920. Similarly, information (signal) 210 from the control device 200 to the support tool 910 is also taken in (received) by the external input / output interface 920. On the other hand, information (signal) 210 from the support tool 910 to the control device 200 is also taken into (received) by the control device 200 via the external input / output interface 920.

The data transmission / reception processing unit 930 processes the input signal 801 according to the information of the input signal 800 generated by the input device 900 from the user, and transmits it to the external output interface 940 as the output signal 802. An output signal 803 from the external output interface 940 based on the output signal 802 is displayed on the image display device 950. The output signal 803 may be output to an output file, printed on a form by a printer (not shown), or output to another system and processed by another system.

Hereinafter, the driving condition determination data and the measurement signals 120 and 140 stored in the related information database 300 and the driving information database 600 will be described.
First, information required when the driving condition determination unit 400 determines the driving condition will be described.

FIG. 3A is a diagram showing an actual measurement data table 300J.
The measured value data table 300J in FIG. 3A is data stored in the related information database, and records information on measured values of the climatic state.
FIG. 3B is a diagram showing a predicted value data table 300Y.
The predicted value data table 300Y of FIG. 3B is data stored in the related information database, and information on predicted values of the climatic state is recorded.

As shown in FIGS. 3A and 3B, the measured value and the predicted value are both the time (time), weather, temperature (° C.), wind direction (degree), wind speed (m / s), humidity ( %), The amount of solar radiation (kW / m ² ) and the like are stored.
Further, the predicted value data table 300Y stores the predicted temperature of the hot water w4 described later.

The period of time (time) to be measured is arbitrarily determined by the measurable time width. The weather is expressed using 15 types sent to the general public by the Japan Meteorological Agency. In Japan, the wind direction (degree) is generally 16 azimuths, but the international style uses 360 azimuths expressed by dividing 360 degrees in the clockwise direction with true north as a reference. In FIG. 3A and FIG. 3B, 360 azimuths are represented. However, in the case of 16 azimuths, if a ratio of 22.5 degrees is given to each azimuth, it can be numerically expressed in 360 azimuth degrees.

Actual measured values are stored in the actual measurement data table 300J shown in FIG. 3A.
Each numerical value is stored in the predicted value data table 300Y shown in FIG. 3B based on, for example, a calculation result in the prediction model and distribution data. Depending on the location, each numerical value may be currently distributed every hour, but in other cases, a model for calculating a predicted value based on past data is required. This prediction model includes, for example, a meso-meteorological model (Weather Research and Forecasting model: WRF model) which is a model for predicting an atmospheric state based on a physical formula. In this model, since it is necessary to make a setting for forecasting a desired area, there is also a simple method of obtaining using a regression equation or the like based on past data. Here, any method may be used.

<Measurement signals 140 and 120>
Next, information on the measurement signals 140 and 120 obtained from the gas turbine power generation facility 100 and the hot water generator 700 will be described.
FIG. 4 is a diagram showing information (data) stored in the driving information database 600.

As shown in FIG. 4, information (information on measurement signals 140 and 120) measured by using a measuring instrument (not shown) in the gas turbine power generation facility 100 and the hot water generator 700 together with each measurement time for each measuring instrument. Saved. The PID number in the first line is a unique number assigned to each measurement value so that data stored in the operation information database 600 can be easily used. The alphabet below the PID number is a symbol indicating the measurement target.
For example, the flow rate value F of the working fluid w1 heated by the solar heat collecting device 701, the temperature value T of the working fluid w1, the pressure value P of the working fluid w1, the power generation output value E of the generator 3, and the combustor 4 The concentration value D of NOx contained in the combustion exhaust gas, the temperature of the hot water w4, and so on. In FIG. 4, data is stored at a cycle of 1 second, but the sampling cycle of data collection differs depending on the target gas turbine power generation facility 100.

FIG. 5 shows the fluid discharged from the solar heat collector 701 (first) using the data stored in the predicted value data table 300Y (see FIG. 3B) stored in the related information database 300 shown in FIG. It is a figure which shows the model which estimates the temperature of the working fluid w1).
Here, the operating condition determination unit 400 estimates the temperature of the fluid (first working fluid w1) discharged from the solar heat collecting apparatus 701 from the heat of the fluid (first working fluid w1). This is to obtain control information for setting the temperature of the hot water w4 used for spraying obtained to a predetermined value.

This model has an input layer, an intermediate layer, and an output layer, and each layer has multiple nodes. These nodes are linked from the input layer to the output layer, and a weighting coefficient (for example, ω1 to ωn: n is the number of connections) indicating the strength of the link is set. That is, there are as many weighting coefficients as the number of connections between nodes.

This model is called a neural network, and simulates a human cranial nerve network. By giving an input value to this model and adjusting the weighting coefficient so that a desired output value for the input value is output, the correlation of the input value can be expressed as a model. This is called learning.

When learning is completed, an input value can be input to the model, and an output value can be estimated based on the correlation obtained by the input value at that time. The function set for each node generally uses an exponential function called a sigmoid function, but is not limited thereto. In addition, many algorithms have been devised that appropriately adjust the weighting factors (the above-mentioned ω1 to ωn) during learning. In general, the back propagation method is used. The back-propagation method is referred to as a back-propagation method because it is a method in which a virtual output value is assigned and a weighting factor representing a weight affecting the virtual output value is obtained retrospectively from the virtual output value.
These detailed calculation algorithms are detailed in "Basics and Practices Neural Network, Shiro Usui et al., Corona".

The method for estimating the temperature of the fluid (working fluid w1) discharged from the solar heat collecting apparatus 701 may be another method such as a least square method other than the illustrated back-propagation method, and the fluid (working fluid w1). Of course, the method is not limited as long as the temperature can be estimated.
Similarly, the operating condition determination unit 400 predicts the temperature of the hot water w4 using data stored in the predicted value data table 300Y (see FIG. 3B). The measured value data table 300J (see FIG. 3A), information on the measurement signals 120 and 140, information on the driving information database 600, and the like are used as necessary.

The predicted temperature of the hot water w4 is recorded by the operating condition determination unit 400 in the predicted value data table 300Y or the storage unit of the work area.
Then, the controller 500 uses the predicted temperature of the hot water w4 to store a necessary amount of heat in the first and second heat storage tanks 703 and 704. For example, when the temperature is predicted to be low or the amount of solar radiation is predicted to be small, the heat amount of the heat transfer oil w2 is accumulated in the first and second heat storage tanks 703 and 704. On the other hand, when the temperature is predicted to be high or the amount of solar radiation is predicted to be large, the amount of heat of the heat transfer oil w2 is accumulated in the first and second heat storage tanks 703 and 704 to a small extent.

Next, the operation of the calculation function in the operation condition determination unit 400 and the control unit 500 in the control device 200 of FIG. 2 will be described.
<Calculation function in operation condition determination unit 400>
FIG. 6 is a flowchart showing the processing operation in the operating condition determination unit 400.
The processing operation in the operation condition determination unit 400 shown in FIG. 2 is any one of a prediction mode for predicting the operation of the gas turbine power generation facility 100 and the hot water generator 700, an actual operation start mode, an operation mode, and a stop mode. This is a process of distributing the above. The prediction mode, the start mode, the operation mode, and the stop mode (operation conditions) are input from the support tool 910 by the user.

First, in step S401 of FIG. 6, it is determined whether or not the operation condition prediction mode of the gas turbine power generation equipment 100 and the hot water generator 700 is set. If it is the prediction mode (Yes in Step S401), the process proceeds to Step S402, while if it is not the prediction mode (No in Step S401), the process proceeds to Step S406.

In step S402, the temperature of the working fluid w1 due to solar heat is estimated from the current temperature and the amount of solar radiation by the prediction method shown in FIG. It is determined whether or not the estimated value is equal to or higher than a preset temperature. If the temperature is equal to or higher than the set temperature (Yes in step S402), the process proceeds to step S403. If the temperature is lower than the set temperature (No in step S402), the working fluid w1 is lower than the set temperature and heat storage is impossible. Therefore, the process ends as “heat storage is possible = 0” (heat storage is not possible) (step S405).

In step S403, it is determined whether or not the temperature in the heat storage tanks 703 and 704 is lower than the temperature of the working fluid w1. If the temperature in the heat storage tanks 703 and 704 is lower than the temperature of the working fluid w1 (Yes in step S403), since heat storage is possible, “heat storage is possible = 1” (heat storage is possible) (step S404) and the process is terminated. When the temperature of the heat transfer oil w2 in the heat storage tanks 703 and 704 is equal to or higher than the temperature of the working fluid w1 (No in step S403), heat cannot be stored in the heat transfer oil w2 in the heat storage tanks 703 and 704. Therefore, “heat storage is possible = 0” (heat storage is not possible) is set (step S405), and the process is terminated.

In step S406 of FIG. 6, it is determined based on the measurement signals 120 and 140 whether or not the gas turbine power generation facility 100 and the hot water generator 700 are in a start-up mode for actual operation. If it is the start mode (Yes in step S406), it is determined as “start mode = 1” (representing the start mode flag “1”) (step S408), and the process ends.

If it is not the start mode (No in step S406), it is determined based on the measurement signals 120 and 140 whether or not it is the stop mode (step S407). If it is not the stop mode (No in step S407), the operation is terminated as “operation mode = 1” (representing the operation mode flag “1”) (step S409). If it is the stop mode (Yes in step S407), it is determined as “stop mode = 1” (representing the stop mode flag “1”) (step S410), and the process ends.
The setting information of heat storage enablement, start mode, operation mode, and stop mode obtained in the flow of FIG. 6 is input to the control unit 500 in the control device 200 of FIG.

<Calculation function in control unit 500>
The control unit 500 in FIG. 2 controls the regulating valves 711 to 718 and the pumps 721 to 725 in the hot water generator 700 based on information from the operation condition determination unit 400 and the operation information database 600. Hereinafter, an operation method according to each mode of the start mode, the operation mode, and the stop mode will be described.

When the start mode is set to “1” (start mode is ON), the bypass line b1 side of the regulating valve 711 shown in FIG. 2 is opened first, and the solar heat collector 701 does not pass through the heat exchanger 702. A circulation loop passes through the bypass line b1. The working fluid w1 is circulated by the pump 721, and the temperature is raised until the temperature of the working fluid w1 flowing into the first heat exchanger inlet 702i reaches a preset temperature. An unillustrated temperature sensor for measuring the temperature of the working fluid w1 is disposed upstream of the regulating valve 711.

When the heating of the working fluid w1 is completed, the bypass line b2 is opened by operating the adjustment valve 714. At this time, the regulating valves 712, 713, and 715 are opened so that the heat transfer oil w2 can flow into the first heat exchanger 702. Whether or not the heat transfer oil w2 is allowed to flow through the second heat storage tank 704 depends on the control state of the hot water generator 700. When flowing the heat transfer oil w2 to the second heat storage tank 704, the adjustment valve 715 is opened to the second heat storage tank 704 side, and the adjustment valve 716 is also opened.

Then, the pumps 722 and 723 are operated, and the heat transfer oil w2 flows into the first heat exchanger 702. At the same time, the bypass line b1 is closed by the operation of the regulating valve 711, and the working fluid w1 flows through the first heat exchanger 702.
As a result, the first heat exchanger 702 starts heat exchange between the working fluid w1 heated to the set temperature by solar heat and the heat transfer oil w2. The current state is maintained until the temperature of the heat transfer oil w2 flowing into the second heat exchanger inlet 705i reaches a preset temperature. A temperature sensor (not shown) that measures the temperature of the heat transfer oil w2 is disposed upstream of the regulating valve 714.

When the temperature increase of the heat transfer oil w2 is completed, the bypass line b3 through which the water w3 flows is opened by operating the adjustment valve 717, and the pumps 724 and 725 are operated. At this time, the adjustment valve 718 is also opened, and the water w3 supplied from the water supply tank 706 flows into the second heat exchanger 705 and the bypass line b3. Then, the bypass line b <b> 2 is closed by the operation of the regulating valve 714, and the working fluid heat transfer oil w <b> 2 flows into the second heat exchanger 705.

Thereby, the temperature of the water w3 supplied from the water supply tank 706 is raised by heat exchange with the heat transfer oil w2 in the second heat exchanger 705. Spraying is possible when the temperature and pressure of the water w3 on the outlet side 725o of the pump 725 reach a preset temperature and pressure. In addition, downstream of the outlet side 725o of the pump 725, a temperature sensor and a pressure sensor (not shown) for measuring the temperature and pressure of the water w3 are disposed.

When the temperature and pressure of the water w3 on the outlet side 725o of the pump 725 reach a preset temperature and pressure, that is, when the water w3 becomes the warm water w4 having a predetermined temperature and pressure, the warm water w4 is sprayed. Therefore, the adjustment valve 717 is operated to close the bypass line b3 and shift to the operating state. Then, a signal indicating the operation mode is sent to the support tool 910.

Next, when the operation mode is set to “1” (operation mode is ON), the operation is performed so that the state of the hot water 4 immediately before the spray nozzle 6 becomes a desired pressure and temperature. Depending on the state of the piping, a pressure sensor and a temperature sensor (not shown) for measuring the pressure and temperature of the hot water w4 are disposed immediately before the spray nozzle 6, respectively. When the distance between the outlet side 725o of the pump 725 and the spray nozzle 6 is short, a pressure sensor (not shown) and a temperature sensor for measuring the pressure and temperature of the hot water w4 are not provided immediately before the spray nozzle 6, respectively. A temperature sensor and a pressure sensor (not shown) downstream of the outlet side 725o of the pump 725 measure the temperature and pressure of the hot water w4, respectively.

Based on the temperature of the hot water w4 immediately before the spray nozzle 6, taking into account heat loss in the piping and equipment, the working fluid w1 at the inlets 702i and 705i of the first and second heat exchangers 702 and 705, The set value of each temperature of the heat transfer oil w2 is determined.
The temperature of the heat transfer oil w2 at the inlet (705i) on the high temperature side of the second heat exchanger 705 is a set value, and the temperature of the heat transfer oil w2 at the outlet (705o) is a temperature considering the heat loss after heat exchange. Thus, the control valves 712 and 713 and the pump 723 of the first heat storage tank 703 of the high-temperature tank are controlled. The temperature of the working fluid w1 at the inlet (702i) of the first heat exchanger 702 and the temperature of the working fluid w1 at the outlet (702o) are controlled in the same way.

When the stop mode is set to “1” (stop mode is ON), all the control valves 711, 714, 717 are operated to open all the bypass lines b1, b2, b3, and then all the pumps 721 to 725 is stopped.
In order to positively store heat in the first heat storage tank 703 when the prediction mode is selected and the heat storage capability is set to “1” (when the first heat storage tank 703 can store heat) during the operation mode. Then, the opening degree of each of the regulating valves 712 and 713 is operated to store an excessive amount of heat for stable operation of the gas turbine power generation facility 100.

By opening the regulating valve 713, the heat transfer oil w2 of the working fluid in the first heat storage tank 703 flows into the second heat exchanger 705, but the working fluid at the inlet 702i of the first heat exchanger 702 The control valves 712 and 713 are controlled so that the temperature of the heat transfer oil w2 flowing into the inlet (705i) of the second heat exchanger 705 becomes a predetermined set temperature (constant) based on the same concept as the constant temperature control of w1. Operate each opening. Similarly, the second heat storage tank 704 operates the opening degree of each of the adjustment valves 715 and 716.

Here, when it is determined that the temperature of the heat medium oil w2 flowing to the inlet (705i) of the second heat exchanger 705 does not reach the set temperature, the adjustment valve 714 causes the heat medium oil w2 to be The heat medium oil w2 is flowed to the bypass line b2 without flowing to the heat exchanger 705, and the temperature of the heat transfer oil w2 is transferred to the inlet (705i) of the second heat exchanger 705 by heat exchange in the first heat exchanger 702. Heat to set temperature. Thereafter, when it is determined that the temperature of the heat transfer oil w2 has reached the set temperature of the inlet (705i) of the second heat exchanger 705, the adjustment valve 714 closes the bypass line b2 to change the heat transfer oil w2 Flow to the second heat exchanger 705. Even when it is determined that the temperature of the heat transfer oil w2 flowing to the inlet (705i) of the second heat exchanger 705 does not reach the set temperature, the inlet (705i) of the second heat exchanger 705 You may comprise so that it may flow.

<Display by support tool 910>
Next, the user uses the support tool 910 (see FIG. 2) to display the measurement signal 120 acquired by the hot water generating device 700 on the image display device 950, the control signal 130 transmitted from the control device 200 to the hot water generating device 700, A method for displaying the determination result of the operating condition determination unit 400 and the information of the related information database 300 will be described.

7 to 10 show examples of screens G1, G2, G3, and G4 displayed on the image display device 950 of FIG.
The user uses the keyboard 901 and the mouse 902 shown in FIG. 2 to perform operations such as selecting a button on the screens G1 to G4 by pressing a button or inputting a parameter value in a blank area. Various information of the gas turbine power generator S is displayed.

FIG. 7 shows a data processing device GUI screen G1 of the initial screen displayed on the image display device 950.
The user displays the data processing device GUI screen G1 on the image display device 950, moves the cursor 953 using the mouse 902 (see FIG. 2), and is necessary from the operation state display button 951 or the trend display button 952 ( A desired button is selected by clicking with the mouse 902. Thereby, a desired operation state display screen (operation state display screen G2 in FIG. 8) or a trend display screen (trend display setting screen G3 in FIG. 9) can be displayed.

FIG. 8 shows an operation state display screen G2 which is an operation state display screen.
When the operation state display button 951 is clicked on the data processing device GUI screen G1 (see FIG. 7), the operation state display screen G2 of FIG. 8 is displayed.
In the system information display field 961 of the operation state display screen G2, the user inputs the time desired to be displayed in the time input field 962. By clicking (pressing) the display button 963, various states at the input time are displayed in the system information display field 961.

Specifically, state quantities such as temperature and pressure measured by the gas turbine power generation device S at present or in the past, and states of devices such as the regulating valves 711 to 718 and the pumps 721 to 725 are displayed. FIG. 8 shows a case where the opening degree of the regulating valve 711 and the temperature of the heat transfer oil w2 at the inlet (705i) of the second heat exchanger 705 are displayed.
In addition, it is good also as a structure by which the user clicks on any part of the configuration displayed in the system information display field 961 and wants to see the status display, and the status of that part is displayed.

In the operation state display 964, the user selects one of a start mode, an operation mode, a stop mode, and a prediction mode. Then, the selected mode is highlighted. FIG. 8 shows a case where the operation mode is highlighted.

When the user selects the start mode, the stop mode, or the prediction mode on the driving state display 964, the selection signal is transmitted to the driving condition determination unit 400 (see FIG. 2) via the support tool 910. When the gas turbine power generation device S shifts to the operation mode after the start mode is completed, the support tool 910 receives the operation mode signal (information 210) from the operation condition determination unit 400 of the control device 200 that has received the measurement signals 120 and 140. The operation mode column in this screen G2 is highlighted (lighted).

Further, when the value of heat storage possibility becomes “1” (the first and second heat storage tanks 703 and 704 can store heat), the heat storage possibility 965 is highlighted (lighted).
When the prediction mode is selected on the operation state display 964, the estimated temperature of the first working fluid w1 is displayed as the estimated temperature in the 966 column.
The temperature in the heat storage tank 1 in the column 966 indicates the temperature of the heat transfer oil w2 in the first heat storage tank 703, and the temperature in the heat storage tank 2 indicates the temperature of the heat transfer oil w2 in the second heat storage tank 704.

Each item of the state of the outside air in each mode is displayed in the related information display column 967.
By clicking (depressing) the return button 968 on the operation state display screen G2, it is possible to return to the data processing device GUI screen G1 of FIG.

FIG. 9 is a trend display setting screen G3 that is a setting screen for displaying trends such as measured values and various specifications over time on the image display device 950.
When the trend display button 952 is clicked (pressed) on the data processing device GUI screen G1 in FIG. 7, the trend display setting screen G3 in FIG. 9 is displayed.

In the measurement signal display field 981 of the trend display setting screen G3, the user inputs the measurement signal 120, 140 or the operation signals 130, 150 to be displayed on the image display device 950 together with the range (upper / lower) in the input field. To do. FIG. 9 shows a case where the name of the measurement signal display field 981 is selected and displayed using a pull-down menu. In the time input field 982, the time zone in which the signal input in the measurement signal display field 981 is to be displayed is input.

When a display button 983 is clicked (pressed), a trend display screen G4 (see FIG. 10) showing a trend graph of data input in the measurement signal display field 981 and the time input field 982 is displayed on the image display device 950. Is displayed.
The user who views the desired trend graph can return to the screen of FIG. 9 by clicking (pressing) the return button 991 on the trend display screen G4 (see FIG. 10).

On the other hand, in the related information display field 984 of the trend display setting screen G3 (see FIG. 9), any of the weather, temperature, wind direction, wind speed, humidity, and solar radiation in the state of the outside air is selected. FIG. 9 shows a case where temperature and wind speed are selected. Further, a time zone in which the item selected in the related information display field 984 is to be displayed is input to the time input field 985. When the display button 986 is clicked, the selected information is retrieved from the related information database 300 (see FIG. 2) via the support tool 910, and the trend graph on the trend display screen G4 (see FIG. 10) is displayed as an image. It is displayed on the display device 950.

Note that the weather in the related information display column 984 is expressed using 15 types transmitted (announced) to the general public by the Japan Meteorological Agency as described above.
That is, a number is assigned according to each type of weather, and this is displayed as a trend. That is, numbers are sequentially assigned up to 14, such as 0 for clear weather, 1 for clear weather, and 2 for light cloudiness. Note that symbols such as ◎ (cloudy), ● (rainy), and pictograms may be displayed.

In the hot water temperature comparison display on the trend display setting screen G3 (see FIG. 9), the predicted hot water temperature and the actual hot water temperature are compared and displayed. When the user inputs a time zone to be compared in the time input field 987 and clicks (presses) the display button 988, a trend for comparing and displaying the predicted hot water temperature and the actual hot water temperature on the trend display screen G4 in FIG. The graph is displayed on the image display device 950.
When ending, the user can return to the data processing device GUI screen G1 of FIG. 7 by clicking (pressing) the return button 989 on the trend display setting screen G3 of FIG.

According to the said structure, since the warm water w4 heated using the solar heat is sprayed on the air which the compressor 2 suck | inhales, a rated output can be maintained with the gas turbine power generation equipment 100 also in the period when external temperature is high. Moreover, when using the hot water w4 by solar heat, the combination with the heat storage in the heat storage tanks 703 and 704 can eliminate the instability of hot water supply due to fluctuations in the amount of solar radiation, and can contribute to the stabilization of power and the extension of the operation period. .
Therefore, it is possible to realize the gas turbine power generation device S and its operation method capable of improving the output and spraying the hot water obtained by the thermal energy of solar heat and capable of stable operation.

<Other embodiments>
In the above-described embodiment, a database is exemplified as the storage unit. However, a temporary file or a work area may be used as long as the storage unit can store various data, and the mode is not limited as long as data can be stored.
In addition, the various storage units described in the embodiment may be divided and configured, and the operating condition determination unit 400 and the control unit 500 may be configured separately or may be integrated into one unit. May be.

1 Gas turbine 1j Gas turbine shaft (shaft)
2 Compressor 3 Generator (equipment)
4 Combustors (equipment)
5 Intake Cooling Chamber 6 Spray Nozzle 100 Gas Turbine Power Generation Equipment 120, 140 Measurement Signal 300 Related Information Database (Related Information Storage Unit)
400 Operating condition determination unit (temperature prediction unit)
500 control unit (first control unit, second control unit, third control unit)
600 Driving information database (driving information storage unit)
701 Solar collector (equipment)
703 First heat storage tank (heat storage tank)
704 Second heat storage tank (heat storage tank)
705 Second heat exchanger (heat exchanger)
712 Regulating valve (second regulating valve)
717 Regulating valve (first regulating valve)
910 Support tool (1st display part, 2nd display part)
950 Image display device (display device)
b2 2nd bypass line b3 1st bypass line S Gas turbine power generator w1 1st working fluid (2nd heat medium)
w2 Second working fluid (heat medium)
w4 warm water

Claims (14)

1. A compressor for compressing air;
   A combustor for combusting compressed air and fuel from the compressor;
   A gas turbine driven by the combustion gas of the combustor;
   A generator connected to the gas turbine via a shaft and driven by rotation of the gas turbine;
   A heat exchanger for exchanging heat with a heat medium heated using solar heat;
   A heat storage tank for storing the heat medium;
   A first bypass line that bypasses the heated side circulation path formed by the heat exchanger;
   A first regulating valve that regulates a flow rate to the first bypass line;
   A gas turbine power generator comprising: an intake air cooling chamber for spraying hot water heated by the heat exchanger onto the air of the compressor with a spray nozzle.
2. In the gas turbine power generator according to claim 1,
   An operation information storage unit for storing a measurement signal in the gas turbine power generation device;
   The measurement signal is input, and an operation condition determination unit that determines operation conditions;
   A related information storage unit for storing the operating conditions and the state of the outside air;
   A first control unit for determining a method for operating the gas turbine power generator based on the operating conditions;
   A gas turbine power generation device comprising: a second control unit that operates the gas turbine power generation device according to the hot water condition obtained from the measurement signal, the state of equipment to be provided, and the operation condition.
3. In the gas turbine power generator according to claim 1,
   An operation information storage unit for storing a measurement signal in the gas turbine power generation device;
   The measurement signal is input, and an operation condition determination unit that determines operation conditions;
   A related information storage unit for storing the operating conditions and the state of the outside air;
   A first control unit for determining a method for operating the gas turbine power generator based on the operating conditions;
   A gas turbine power generator comprising: a temperature prediction unit that predicts a temperature of a heat medium heated by a solar heat collector from the state of the outside air.
4. In the gas turbine power generator according to claim 3,
   Third control for operating the gas turbine power generator according to the result of predicting the temperature of the heat medium from the state of the outside air, the condition of the hot water obtained from the measurement signal, the state of the equipment to be provided, and the operating condition A gas turbine power generator characterized by comprising a section.
5. In the gas turbine power generator according to any one of claims 1 to 4,
   The first regulating valve controls a flow rate of the hot water according to an operating state. The gas turbine power generator.
6. In the gas turbine power generator according to claim 3 or 4,
   A second regulating valve that is attached to the heat storage tank and controls the flow rate of the heat medium based on the result of predicting the temperature of the heat medium from the state of the outside air, the state of the equipment provided, and the condition of the obtained hot water A gas turbine power generator comprising:
7. In the gas turbine power generator according to any one of claims 1 to 4,
   When stopping the gas turbine, the first bypass line is opened. A gas turbine power generator.
8. In the gas turbine power generator according to any one of claims 1 to 4,
   A second bypass line for bypassing the heating side circulation path of the heat exchanger;
   When starting the gas turbine,
   Until the temperature of the heat medium flowing into the inlet side of the heat exchanger reaches a set temperature, the temperature of the heat medium is increased by passing the heat medium through the second bypass line. After the temperature reaches the set temperature, the second bypass line is closed, and the heat medium is passed through the heat exchanger.
9. In the gas turbine power generator according to any one of claims 2 to 4,
   A gas turbine power generator comprising: a first display unit for displaying the operating condition on a display device at an arbitrary time width.
10. In the gas turbine power generator according to claim 3,
    The temperature prediction unit predicts the temperature of the hot water,
    A gas turbine power generation comprising: a second display unit for comparing and displaying the result of the hot water temperature predicted by the temperature prediction unit and the result of the actually obtained hot water temperature on a display device at an arbitrary time width. apparatus.
11. A compressor for compressing air;
    A combustor for combusting compressed air and fuel from the compressor;
    A gas turbine driven by the combustion gas of the combustor;
    A generator connected to the gas turbine via a shaft and driven by rotation of the gas turbine;
    A heat exchanger,
    A heat storage tank for storing a heat medium;
    A first bypass line that bypasses the heated side circulation path formed by the heat exchanger;
    A first regulating valve that regulates a flow rate to the first bypass line;
    A spray nozzle for spraying warm water on the air;
    An operation method of a gas turbine power generator comprising an intake air cooling chamber for sending the air to the compressor,
    Until the heat medium heated using solar heat reaches a predetermined temperature, the first adjustment valve bypasses the circulation path formed by the heat exchanger using the first bypass line,
    The heat storage tank stores the heat medium that has reached the predetermined temperature,
    Producing the hot water by heat exchange with the heat medium by the heat exchanger;
    In the air intake cooling chamber, the hot water heated by the heat exchanger by the spray nozzle is sprayed onto the air.
12. In the operation method of the gas turbine power generator according to claim 11,
    The gas turbine power generation device includes an operation information storage unit, an operation condition determination unit, a related information storage unit, a first control unit, and a second control unit. The operation information storage unit includes the gas turbine power generation device. Save the measurement signal at
    The operating condition determining unit determines the operating condition when the measurement signal is input,
    The related information storage unit stores the operating conditions and the state of the outside air,
    The first control unit determines a method for operating the gas turbine power generation device based on the operating conditions,
    The second control unit operates the gas turbine power generator according to the condition of the hot water obtained from the measurement signal, the state of the equipment to be provided, and the operating condition. Method.
13. In the operation method of the gas turbine power generator according to claim 11,
    The gas turbine power generator includes an operation information storage unit, an operation condition determination unit, a related information storage unit, a first control unit, and a temperature prediction unit,
    The operation information storage unit stores a measurement signal from the gas turbine power generator,
    The operating condition determining unit determines the operating condition when the measurement signal is input,
    The related information storage unit stores the operating conditions and the state of the outside air,
    The first control unit determines a method for operating the gas turbine power generation device based on the operating conditions,
    The temperature prediction unit predicts the temperature of a heat medium heated by a solar heat collecting device from the state of the outside air.
14. In the operation method of the gas turbine power generator according to claim 13,
    The gas turbine power generator includes a third control unit,
    The third control unit generates the gas turbine power generation according to the result of predicting the temperature of the heat medium from the state of the outside air, the condition of the hot water obtained from the measurement signal, the state of the equipment to be provided, and the operation condition. An operation method of a gas turbine power generator characterized by operating an apparatus.

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