JP4020601B2 - High humidity gas turbine system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a high-humidity gas turbine system that performs heat recovery of gas turbine exhaust gas using a mixture of air and steam.
[0002]
[Prior art]
For example, as described in Japanese Patent Publication No. 1-31012, the high-humidity gas turbine system (AHAT) brings heated liquid-phase water and air into contact with each other inside the humidification tower. A mixture of air and water vapor and cooled liquid phase water are obtained, and the former is used for heat recovery from the exhaust gas, and the latter is used for intermediate cooling and post-cooling of the compressor and heat recovery from the exhaust gas.
[0003]
However, the high humidity gas turbine system has the following problems when the system is started. That is, at the time of cold start, the compressor discharge air is cooled to pass through the low-temperature humidification tower and the regenerator, and the liquid phase water supplied to the humidification tower is low temperature. Humid air enters the combustor. In addition, the fuel / air ratio is small because the fuel flow rate is small at low loads after startup, so it is difficult to ignite the combustor, and even if ignited, there is a greater possibility of occurrence of combustion vibrations and misfires. It is difficult to obtain a combustion state.
[0004]
Further, when the high-humidity gas turbine system is stopped, the fuel flow rate is also reduced, so that it is difficult to obtain a stable combustion state as in the start-up. In addition, after the shutdown, as the temperature of the entire system decreases, moisture in the air condenses in equipment such as a regenerator, combustor, turbine, and feed water heater on the downstream side of the humidification tower, causing blockage of the flow path. May cause problems such as erosion. Therefore, when the system is stopped, it is considered necessary to gradually reduce the moisture in the air to dry the devices and the pipes connecting them to prepare for the next start-up.
[0005]
Therefore, when starting and stopping the high humidity gas turbine system, it is desired to arbitrarily control the amount of moisture contained in the air extracted from the humidification tower.
[0006]
Here, for example, as described in JP-A-2000-230432, two humidifying towers are provided, and when the plant load is increased, the second humidifying tower is used to supplementarily humidify the load. When making it small, it is known not to perform humidification by the second humidification tower.
[0007]
[Problems to be solved by the invention]
However, even if it describes in Unexamined-Japanese-Patent No. 2000-230432, since two humidification towers are arrange | positioned in series, there existed the following problems.
[0008]
First, since the humidifying tower is a pressure vessel, the installation area becomes large. When a plurality of humidifying towers are used, the installation area increases. There was a problem that the total weight of the was also increased.
[0009]
Secondly, when two humidifying towers are arranged in series, the flow rates of the humidified air flowing through the two humidifying towers are equal, so it is necessary to use humidifying towers of the same size, respectively. There was a problem that the degree of freedom of the installation location was further reduced.
[0010]
A first object of the present invention is to provide a high-humidity gas turbine system that has a large degree of freedom in installation location and can reduce the weight of a humidification tower.
[0011]
In addition, a second object of the present invention is to provide a high-humidity gas turbine system having a high degree of freedom in installation location.
[0012]
[Means for Solving the Problems]
(1) In order to achieve the first object, the present invention brings air or a gas mainly composed of air into contact with heated liquid phase water, and a mixture of high temperature air and liquid phase water vapor and a low temperature liquid. In a high-humidity gas turbine system having a humidification tower for producing phase water and performing heat recovery of gas turbine exhaust gas and cooling of compressor discharge air with the mixture of air and water vapor and low-temperature liquid phase water, dividing the internal humidifying tower in a plurality, and supplies line liquid phase water to each divided each part, a valve respectively provided conduit supplying the liquid-phase water outlet of the upper Symbol humidifying tower (5) Humidity monitoring means for monitoring the air moisture of the humidity sensor, wherein the moisture monitoring means is a humidity sensor for measuring the air moisture at the air outlet of the humidifying tower, or a liquid phase water inlet / outlet of the humidifying tower. a temperature measuring means for measuring the water temperature, air outlet of the humidifying tower (5) A humidity sensor for measuring air moisture, or a moisture measuring means for monitoring the air moisture at the outlet of the humidifying tower by means of temperature measuring means for measuring the water temperature at the liquid phase water inlet / outlet of the humidifying tower, The valve is a valve whose opening degree is adjusted according to the air moisture at the outlet of the humidification tower monitored by the moisture monitoring means.
With such a configuration, the degree of freedom of the installation location can be increased, and the weight of the humidification tower can be reduced.
[0013]
(2) In the above (1), preferably, a pipe for supplying air to each of the respective parts inside the plurality of humidification towers and a valve provided for each of the pipes for supplying the air are provided. It is a thing.
[0014]
(3) In the above (1), preferably, the inside of the humidification tower is divided into a plurality in the vertical direction.
[0015]
(4) In the above (1), preferably, the inside of the humidification tower is divided into a plurality in the circumferential direction.
[0016]
(5) In the above (1), preferably, the inside of the humidification tower is divided into a plurality in the radial direction.
[0017]
(6) Moreover, in order to achieve the said objective, this invention is made to contact air or the gas which has air as a main body with the heated liquid phase water, the mixture of high temperature air and liquid phase water vapor | steam, and a low temperature liquid phase. A high-humidity gas turbine system having a humidification tower for producing water, wherein heat recovery of gas turbine exhaust gas and cooling of compressor discharge air are performed by the mixture of air and steam and low-temperature liquid phase water. As the wet tower, a plurality of humidifier towers are provided, the multiple humidifier towers are arranged in parallel, and a pipe for supplying liquid phase water and air to each of the multiple humidifier towers, and the liquid phase and the valve respectively provided supply pipe of water, and a moisture monitoring means for monitoring the air humidity of the outlet of the upper Symbol humidifying tower (5), the moisture monitoring means, the air outlet of the humidifying tower (5) Humidity sensor that measures the air moisture of liquid or liquid phase water in and out of the above-mentioned humidification tower A temperature measuring means for measuring the water temperature, the humidity sensor for measuring the air humidity of the air outlet of the humidifying tower (5), or by the temperature measuring means for measuring the temperature of the liquid phase water inlet and outlet of the humidifying tower (5), the increase Moisture monitoring means for monitoring the air moisture at the outlet of the wet tower, and the valve is a valve whose opening degree is adjusted according to the air moisture at the outlet of the humidifying tower monitored by the moisture monitoring means. is there.
Such a configuration can further increase the degree of freedom of the installation location.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of the high-humidity gas turbine system according to the first embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a system diagram showing a configuration of a high-humidity gas turbine system according to a first embodiment of the present invention.
[0019]
In the gas turbine system of the present embodiment, the air 3 is compressed by the compressor 2 and then enters the humidification tower 5 via the post-cooler 4. The post-cooler 4 is supplied with liquid phase water 13 stored at the bottom of the humidification tower 5 by a pump 28, and auxiliary water stored in the auxiliary water tank 27 is supplied by a pump 30. .
[0020]
Inside the humidification tower 5, packed beds 6 and 7 formed by packing such as Raschig rings are arranged in two upper and lower stages. Inside the humidification tower 5, air is brought into contact with the water film formed by the high-temperature liquid phase water on the surfaces of the packed layers 6 and 7, and the air is heated and humidified to become high-humidity air. The high-humidity air is heated by the regenerator 8, then reacts with fuel in the combustor 9 to become high-temperature gas, drives the turbine 10, and is used by the load 1. The exhaust gas of the turbine 10 is normally at a high temperature of about 400 to 600 ° C., and heat recovery is performed through the regenerator 8 and the feed water heater 11. The exhaust gas after the heat recovery is discharged from the chimney 12 to the atmosphere. Is done.
[0021]
On the other hand, a part of the high-temperature liquid phase water supplied to the humidification tower 5 evaporates in the air in the humidification tower, thereby depriving latent heat of vaporization to become low-temperature liquid phase water 13. The low temperature liquid phase water 13 is taken out from the humidification tower 5 and sent to the post-cooler 4 and the feed water heater 11 by the pumps 28 and 29, used as a heat recovery medium, and again the high temperature liquid phase water. It is supplied to the humidification tower 5. When the temperature of the low-temperature liquid phase water 13 is too high to be used as a heat recovery medium, cooling is performed by flowing cooling water through the heat transfer tube 14 provided at the lower portion of the humidification tower 5.
[0022]
In the present embodiment, pipes 15, 16, 17, and 18 for supplying liquid phase water to each of the divided packed beds and valves 19, 20, 21, and 22 on the paths, and each of the divided packed beds. The pipes 23 and 24 for supplying air to the pipes and the valves 25 and 26 on the paths are characterized by operating these to start and stop the system. That is, the inside of the humidification tower 5 is divided into two by the packed layers 6 and 7, and liquid phase water and air can be independently supplied to each of the two divided areas. The liquid phase water supplied to the packed bed 6 can be controlled by valves 19 and 20, and the liquid phase water supplied to the packed bed 7 can be controlled by valves 21 and 22. The air supplied to the packed bed 6 can be controlled by the valve 25, and the air supplied to the packed bed 7 can be controlled by the valve 26.
[0023]
Next, the operation of opening / closing control of the valves 19,..., 22, 25, 26 when the system is started and stopped will be described.
[0024]
When the system is started, the valve 26 is fully opened and the valve 25 is fully closed, the gas turbine is started with external power such as a motor, and the combustor is subsequently ignited. At this time, since each part of the system is at a low temperature, the valves 19, 20, 21, and 22 are closed, and liquid phase water is not supplied to the humidification tower 5 so that the humidification operation is not performed.
[0025]
Next, the gas turbine is accelerated, and the fuel flow rate is increased after the self-sustained operation is started, and an initial load is added. And after warming-up of each part is complete | finished, load is raised and a humidification driving | operation is started.
[0026]
When the load is low, the fuel flow rate is small relative to the air flow rate, so that the amount of humidification is kept small for stable combustion in the combustor 9, and when the load is large, the amount of humidification increases as the fuel flow rate increases. Need to be more. Therefore, it operates as follows.
[0027]
First, the valves 21 and 22 on the liquid phase water lines 17 and 18 and the valve 26 on the air line 24 are opened little by little. Then, liquid phase water is supplied to the packed bed 6 and contact with the air that has passed through the air conduit 24 is performed, whereby high-humidity air is obtained. This high-humidity air is mixed with the air supplied from the air line 23 and passes through the packed bed 7 in a low moisture state. However, liquid-phase water is not supplied to the packed bed 7 and is dried. Therefore, the humidity of the air does not increase any more, and the air taken out from the humidification tower 5 is in a low moisture state.
[0028]
When increasing the amount of humidification, by closing the valve 25, the amount of air passing through the packed bed 6 is increased, and the proportion of dry air mixed with the high humidity air is decreased. In order to further increase the amount of humidification, the valve 25 is fully closed and the valves 19 and 20 on the liquid phase water lines 15 and 16 are opened to supply liquid phase water to the packed bed 7 as well. Then, a gas-liquid contact surface is formed in both the filling layer 6 and the filling layer 7, and the amount of moisture increase is maximized.
[0029]
The above operation is performed by measuring the water temperature at the liquid phase water inlet / outlet of the humidifying tower 5 by the humidity sensor A provided at the air outlet of the humidifying tower 5 or by temperature measuring means such as a thermocouple not shown in the figure. The air moisture at the outlet of the humidification tower 5 is monitored, and the valves 19,..., 22, 25, 26 are adjusted so as to have appropriate values.
[0030]
In the system stop operation, the procedure is the reverse of the above. That is, at the time of stoppage, the amount of fuel input is gradually reduced to lower the load. At this time, the combustor 9 approaches the misfire limit due to a decrease in the fuel-air ratio, so the valves 19 and 20 are closed to the packed bed 7. The amount of humidification is reduced by stopping the supply of liquid phase water and limiting the gas-liquid contact to the packed bed 6 only. Further, when the load decreases, the valve 25 is opened and the valve 26 is closed, and the moisture is lowered by mixing dry air into the high-humidity air. When the load drops to the same level as the initial load, the valves 21 and 22 are closed, the supply of liquid phase water to the humidification tower 5 is stopped, and the operation with dry air is performed to dry the gas passage of the entire system. The fuel injection is stopped after the load is disconnected, the combustor is extinguished, and the gas turbine is stopped.
[0031]
In the above example, the inside of the humidification tower is divided into two upper and lower stages, and the inflow pipes for liquid-phase water and air are provided for each. However, the number of divisions may be further increased. A gas mainly composed of air may be used instead of air.
[0032]
As described above, in the present embodiment, the inside of the humidification tower is divided into upper and lower parts, the liquid phase water and air supplied to each can be controlled, and the humidity is gradually increased when the high-humidity gas turbine system is started. As a result, a stable combustion state can be obtained, and when the system is stopped, by gradually reducing the amount of increase in humidity, a stable combustion state can be obtained and prepared for the next start-up.
[0033]
Also, by dividing the inside of the humidification tower into upper and lower parts, as compared with the conventional case where two independent humidification towers are arranged in series, only one humidification tower is required. It can be halved, the degree of freedom of installation location can be improved, and the total weight of the humidification tower can be reduced.
[0034]
Next, the structure of the humidification tower used for the high humidity gas turbine system by the 2nd Embodiment of this invention is demonstrated using FIG. 2 and FIG.
FIG. 2 is a perspective view showing a configuration of a humidification tower used in a high-humidity gas turbine system according to a second embodiment of the present invention, and FIG. 3 is a sectional view taken along line XX ′ of FIG.
[0035]
The present embodiment is characterized in that the inside of the humidification tower 5A is divided into a plurality of flow paths in the circumferential direction by partition walls, and the number of flow paths where the liquid phase water and air contact is adjusted according to the operating state. The system diagram of the high humidity gas turbine system according to this embodiment using the illustrated humidification tower 5A is the same as that shown in FIG.
[0036]
As shown in FIG. 2, the inside of the humidification tower 5 </ b> A has a packed bed 55 divided into four in the circumferential direction by a partition wall 56, and four flow paths in which liquid-phase water and air are in contact are formed. Yes. Each flow path is provided with pipes 57, 58, 59, 60 for supplying liquid phase water, and valves 61, 62, 63, 64 on the pipes. Air is supplied from an air pipe 65 connected to the lower portion of the filling tank 55. The humidified high-humidity air is heated by the regenerator 8 and sent to the combustor 9 as shown in FIG. Moreover, the low-temperature liquid phase water 13 collected in the lower part of the humidification tower 5A is sent to the post-cooler 4 and the feed water heater 11 as shown in FIG. Further, as shown in FIG. 3, the filling layer 55 is divided into four filling layers 55 a, 55 b, 55 c, and 56 d in the circumferential direction by a partition wall 56.
[0037]
When the amount of increase in humidity is reduced during low load operation such as starting and stopping, the valve 64 for supplying liquid phase water to a part of the packed bed divided into four, for example, the packed bed 55a, is opened, and the valves 61, 62, 63 are opened. Close. Contact between the air flowing in from the air pipe 65 and the liquid phase water is performed only at 55a, and dry air passes through 55b, 55c, and 55d. Then, at the outlet of the humidifying tower 5A, the high-humidity air taken out from the packed bed 55a and the dry air taken out from other flow paths can be mixed to produce air with low humidity.
[0038]
When increasing the amount of moisture increase, the valves 59, 61, 62 may be opened sequentially so as to supply liquid phase water to the other packed beds 55b, 55c, 55d.
[0039]
In the above description, the example in which the flow path is divided into four has been shown, but the number of divisions may be further increased or decreased.
[0040]
As described above, in the present embodiment, the inside of the humidification tower is divided in the circumferential direction, and the liquid phase water supplied to each can be controlled, so that the humidity is gradually increased when the high-humidity gas turbine system is started. As a result, a stable combustion state can be obtained, and when the system is stopped, by gradually reducing the amount of increase in humidity, a stable combustion state can be obtained and prepared for the next start-up.
[0041]
Also, by dividing the inside of the humidification tower in the circumferential direction, as compared with the conventional case where two independent humidification towers are arranged in series, only one humidification tower is required. The area can be halved, the degree of freedom of installation location can be improved, and the total weight of the humidification tower can be reduced.
[0042]
Furthermore, since there is only one air supply line, the humidification tower using the pressure vessel can be made compact. That is, since the air supply pipe has a large diameter of several tens of centimeters, it is necessary to provide a large flange for mounting on the humidification tower when attaching a plurality of air supply pipes to the humidification tower. However, since one air supply line can be provided, only one flange is required, and the humidification tower can be made compact.
[0043]
Next, the structure of the humidification tower used for the high humidity gas turbine system by the 3rd Embodiment of this invention is demonstrated using FIG. 4 and FIG.
FIG. 4 is a perspective view showing a configuration of a humidification tower used in a high-humidity gas turbine system according to a third embodiment of the present invention, and FIG. 5 is a YY ′ cross-sectional view of FIG.
[0044]
In the present embodiment, the inside of the humidification tower 5B is divided into a plurality of flow paths in the radial direction by the partition walls inside the humidification tower 5B, and the number of flow paths where the liquid phase water and the air come into contact depends on the operation state. There is a feature in adjusting. The system diagram of the high-humidity gas turbine system according to the present embodiment using the illustrated humidification tower 5B is the same as that shown in FIG.
[0045]
As shown in FIG. 4, the inside of the humidification tower 5 </ b> B has a packed bed 66 divided into two in the radial direction by partition walls 67, and two flow paths are formed in which liquid phase water and air contact. . Each flow path is provided with pipes 68, 69, 70 for supplying liquid phase water and valves 71, 72, 73 on the pipes. The humidified high-humidity air is heated by the regenerator 8 and sent to the combustor 9 as shown in FIG. Moreover, the low-temperature liquid phase water 13 collected in the lower part of the humidification tower 5B is sent to the post-cooler 4 and the feed water heater 11 as shown in FIG. Further, as shown in FIG. 5, the filling layer 66 is divided into two filling layers 66 a and 66 b in the radial direction by a partition wall 67 to form two flow paths.
[0046]
When the amount of increase in humidity is reduced during low load operation such as starting and stopping, the valve 73 for supplying liquid phase water to one of the two packed beds, for example, the packed bed 66a, is opened, and the valves 71 and 72 are closed. Then, the contact between the liquid phase water and the air is performed only in the packed bed 66a, and the dry air passes through the packed bed 66b. Therefore, the high humidity air taken out from 66a and the dry air taken out from 66b can be mixed at the outlet of the humidifying tower 5B to produce air with low humidity.
[0047]
When increasing the amount of moisture increase, the valves 71 and 72 may be opened so as to supply liquid phase water to the flow path 66b.
[0048]
In the above description, the example in which the flow path is divided into two has been shown, but the number of divisions may be further increased.
[0049]
As described above, in the present embodiment, the inside of the humidification tower is divided in the radial direction, the liquid phase water supplied to each can be controlled, and when the high-humidity gas turbine system is started, the humidity is gradually increased. Thus, a stable combustion state can be obtained, and when the system is stopped, the amount of increase in humidity can be gradually reduced to obtain a stable combustion state and to prepare for the next start-up.
[0050]
In addition, by dividing the inside of the humidification tower in the radial direction , as compared with the conventional case where two independent humidification towers are arranged in series, only one humidification tower is required. Can be halved, the degree of freedom of installation location can be improved, and the total weight of the humidification tower can be reduced.
[0051]
Furthermore, since there is only one air supply line, the humidification tower using the pressure vessel can be made compact. That is, since the air supply pipe has a large diameter of several tens of centimeters, it is necessary to provide a large flange for mounting on the humidification tower when attaching a plurality of air supply pipes to the humidification tower. However, since one air supply line can be provided, only one flange is required, and the humidification tower can be made compact.
[0052]
Next, the configuration of the high humidity gas turbine system according to the fourth embodiment of the present invention will be described with reference to FIG.
FIG. 6 is a system diagram showing a configuration of a high-humidity gas turbine system according to the fourth embodiment of the present invention. The same reference numerals as those in FIG. 1 indicate the same parts.
[0053]
In the present embodiment, two humidifying towers 5C and 5D are installed in parallel, and the number of humidifying towers that perform the humidifying operation is changed according to the operating state. The humidification towers 5C and 5D respectively include pipes 31, 32, 33, and 34 for supplying liquid phase water, valves 35, 36, 37, and 38 on the pipes, and pipes 39 and 40 for supplying air. And valves 41 and 42 on the pipe line.
[0054]
When reducing the amount of humidification during low load operation such as starting and stopping, the valves 36 and 37 for supplying liquid phase water are opened, the valves 35 and 38 are closed, and liquid phase water is supplied only to the humidification tower 5C. To do. That is, when it is desired to reduce the amount of humidification, the humidification operation is performed only by the humidification tower 5C, and the humidification tower 5D is in a state in which dry air passes, and the high-humidity air obtained from the humidification tower 5C and the humidification tower 5D. The dry air obtained from is mixed to produce low moisture air. If the distribution of the air flow supplied to the humidifying tower 5C and the humidifying tower 5D is changed by adjusting the opening degree of the valves 41 and 42 on the path for supplying air at this time, the minute control of moisture is further performed. Is also possible.
[0055]
When increasing the amount of humidification, the valves 35 and 38 are opened to supply the liquid phase water to the humidification tower 5D, and the humidification operation is performed in both the humidification towers 5C and 5D.
[0056]
In the above description, the configuration using two humidifying towers is shown, but the number of humidifying tower groups may be further increased.
[0057]
As described above, in the present embodiment, a plurality of humidification towers are used, each of them is arranged in parallel, and the liquid phase water supplied to each can be controlled, and at the time of starting the high-humidity gas turbine system, By gradually increasing the humidity, a stable combustion state can be obtained, and when the system is stopped, by gradually reducing the amount of increase in humidity, a stable combustion state can be obtained and prepared for the next start-up.
[0058]
In addition, by using a plurality of humidifying towers arranged in parallel, the cross-sectional area of one humidifying tower can be reduced compared to the case where two humidifying towers are arranged in series as in the prior art. The humidification tower can be reduced in size. That is, when two humidifying towers are arranged in series as in the prior art, the same amount of air needs to flow through each of the humidifying towers, whereas two are arranged in parallel. Are the same size, the amount of air flowing to one humidifying tower can be halved, so the cross-sectional area of one humidifying tower can be halved, The tower diameter can be 1 / √2. Therefore, since the container thickness is thin and light, and the tower body is small, transportation and installation are facilitated, and the degree of freedom of the installation location is improved.
[0059]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the freedom degree of the installation place of a high humidity gas turbine system can be enlarged, the weight of a humidification tower can be reduced , and the stable combustion is carried out at the time of starting and stopping of a high humidity gas turbine system. You can get the status and prepare for the next startup.
[0060]
Moreover, the degree of freedom of the installation location of the high humidity gas turbine system can be further increased.
[Brief description of the drawings]
FIG. 1 is a system diagram showing a configuration of a high-humidity gas turbine system according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing a configuration of a humidification tower used in a high humidity gas turbine system according to a second embodiment of the present invention.
3 is a cross-sectional view taken along the line XX ′ of FIG.
FIG. 4 is a perspective view showing a configuration of a humidification tower used in a high humidity gas turbine system according to a third embodiment of the present invention.
5 is a cross-sectional view taken along line YY ′ of FIG. 4. FIG.
FIG. 6 is a system diagram showing a configuration of a high humidity gas turbine system according to a fourth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Load 2 ... Compressor 3 ... Air 4 ... Post-cooler 5, 5A, 5B, 5C, 5D ... Humidification tower 6, 7, 55, 66 ... Packed bed 8 ... Regenerator 9 ... Combustor 10 ... Turbine DESCRIPTION OF SYMBOLS 11 ... Feed water heater 12 ... Chimney 13 ... Liquid phase water 14 ... Heat transfer tube 15, 16, 17, 18, 31, 32, 33, 34, 43, 44, 45, 46, 57, 58, 59, 60, 68 , 69, 70... Liquid phase water lines 19, 20, 21, 22, 25, 26, 35, 36, 37, 38, 41, 42, 47, 48, 49, 50, 53, 54, 61, 62, 63 , 64, 71, 72, 73 ... valves 23, 24, 39, 40, 51, 52, 65 ... air conduits 27 ... makeup water tanks 28, 29, 30 ... pumps 56, 67 ... partition walls

Claims (6)

A mixture of high-temperature air and liquid-phase water vapor, and a humidification tower for producing low-temperature liquid-phase water by contacting air or a gas mainly composed of air with heated liquid-phase water, and the mixture of air and water-vapor In a high-humidity gas turbine system that performs heat recovery of gas turbine exhaust gas and cooling of compressor discharge air with low-temperature liquid phase water,
A pipe that divides the inside of the humidification tower into a plurality of parts and supplies liquid phase water to each of the divided parts;
A valve provided in each of the pipes for supplying the liquid phase water;
And a moisture monitoring means for monitoring the air humidity of the outlet of the upper Symbol humidifying tower (5),
The moisture monitoring means is a humidity sensor that measures the air moisture at the air outlet of the humidifying tower, or a temperature measuring means that measures the water temperature at the liquid phase water inlet / outlet of the humidifying tower,
The high-humidity gas turbine system, wherein the valve is a valve whose opening degree is adjusted according to the air moisture at the outlet of the humidification tower monitored by the moisture monitoring means. The high humidity gas turbine system according to claim 1,
A pipe for supplying air to each part inside the humidification tower divided into a plurality of the above,
A high-humidity gas turbine system comprising a valve provided in each of the pipes for supplying the air. The gas turbine system according to claim 1.
The high-humidity gas turbine system, wherein the inside of the humidification tower is divided into a plurality of parts in the vertical direction. The gas turbine system according to claim 1.
The high-humidity gas turbine system, wherein the inside of the humidification tower is divided into a plurality of parts in the circumferential direction. The gas turbine system according to claim 1.
The high-humidity gas turbine system, wherein the inside of the humidification tower is divided into a plurality of portions in the radial direction. A mixture of high-temperature air and liquid-phase water vapor, and a humidification tower for producing low-temperature liquid-phase water by contacting air or a gas mainly composed of air with heated liquid-phase water, and the mixture of air and water-vapor In a high-humidity gas turbine system that performs heat recovery of gas turbine exhaust gas and cooling of compressor discharge air with low-temperature liquid phase water,
As the above-described humidifying tower, a plurality of humidifying towers are provided, and these plural humidifying towers are arranged in parallel,
A line for supplying liquid phase water and air to each of the plurality of humidification towers;
A valve provided in each of the pipes for supplying the liquid phase water;
And a moisture monitoring means for monitoring the air humidity of the outlet of the upper Symbol humidifying tower (5),
The moisture monitoring means is a humidity sensor that measures the air moisture at the air outlet of the humidifying tower, or a temperature measuring means that measures the water temperature at the liquid phase water inlet / outlet of the humidifying tower,
The high-humidity gas turbine system, wherein the valve is a valve whose opening degree is adjusted according to the air moisture at the outlet of the humidifying tower monitored by the moisture monitoring means.

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