A gas turbine spray humidification system based on natural gas waste cooling utilization

Abstract

The application discloses a gas turbine spray humidification system based on natural gas waste heat utilization, which comprises a waste heat water unit, a spray humidification unit and a control unit; the waste heat water unit comprises a natural gas waste heat exchanger, a differential pressure expansion generator and a refrigerant water control unit; the differential pressure expansion generator and the refrigerant water control unit are connected with a water inlet and an air inlet of the natural gas waste heat exchanger respectively, and a water outlet of the natural gas waste heat exchanger is connected with the spray humidification unit and at least one unit coil respectively; the spray humidification unit comprises a high-pressure atomizing pump and at least one spray module; the spray module is arranged at an air inlet of a gas turbine compressor, and sprays and cools air entering the gas turbine compressor inlet; the control unit comprises a spray host, and controls the spray humidification unit to work. The application can obtain natural gas meeting temperature requirements and cooling water with lower temperature, and sprays and humidifies the gas turbine compressor by using the cooling water, so that the air inlet temperature of the gas turbine compressor is reduced and the humidity is improved.

Description

Technical Field

[0001] This application relates to the field of generator set technology, and in particular to a gas turbine spray humidification system based on the utilization of natural gas waste cooling. Background Technology

[0002] Combined Cycle Gas Turbine (CCGT) generator sets, as a highly efficient and clean energy generation method, achieve high comprehensive energy utilization efficiency through the combination of a gas turbine, a heat recovery steam generator (HRSG), and a steam turbine. The output power of the gas turbine is directly proportional to its inlet air volumetric flow rate, while air density decreases non-linearly with increasing ambient temperature. During hot summer periods (especially in low-latitude or arid regions), ambient temperatures can approach or even exceed the design reference temperature, resulting in a significant reduction in the amount of air entering the compressor. This weakens the gas turbine's work capacity and directly affects the overall power generation efficiency of the unit. In winter, dry air and significantly reduced humidity directly lead to increased NOx emissions from the unit, placing greater pressure on environmental protection.

[0003] The inlet temperature and humidity of a gas turbine have a significant impact on its performance and emissions. However, existing gas-steam combined cycle generator sets lack effective adjustment methods to optimize inlet conditions when operating under varying ambient humidity and temperature. In high-temperature or low-humidity environments, increased inlet temperature leads to a decrease in the gas turbine's output power, while decreased inlet humidity leads to an increase in emissions, thus affecting the overall power generation efficiency and emissions of the generator set. Furthermore, current technologies lack sufficient research on optimizing the unit's operation under different environmental conditions, making it difficult to fully realize the unit's performance potential in various environments and limiting its widespread application in different regions.

[0004] Existing gas-steam combined cycle generator sets face multiple technical bottlenecks when dealing with high summer temperatures and low winter humidity, including decreased power generation efficiency, reduced flexibility, high cooling costs, and significant environmental pressure. The root cause of these problems lies in the failure to effectively coordinate the energy flow of the main process system with the cooling demands of auxiliary equipment, particularly the lack of a novel cooling / humidification technology that can efficiently utilize the unit's own waste heat while also being low-cost and water-saving. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this application is to provide a gas turbine spray humidification system based on the utilization of natural gas waste cooling, comprising: a waste cooling water unit, a spray humidification unit, and a control unit; wherein: the waste cooling water unit includes a natural gas waste cooling heat exchanger, a differential pressure expansion generator, and a chilled water control unit; the differential pressure expansion generator and the chilled water control unit are respectively connected to the water inlet and air inlet of the natural gas waste cooling heat exchanger, and the water outlet of the natural gas waste cooling heat exchanger is respectively connected to the spray humidification unit and at least one unit coil; the spray humidification unit includes a high-pressure atomizing pump and at least one spray module; the high-pressure atomizing pump is connected to the water outlet of the natural gas waste cooling heat exchanger, and the spray module is disposed at the air inlet of the gas turbine compressor to spray and cool the air entering the gas turbine compressor inlet; the control unit includes a spray host, which is connected to the spray humidification unit and controls the operation of the spray humidification unit.

[0006] In one embodiment of this application, the refrigerant water control unit includes a first refrigerant buffer tank and a refrigerant water pump; the first refrigerant buffer tank is connected to the demineralized water inlet pipe and the outlet of the unit coil, respectively.

[0007] In one embodiment of this application, the outlet of the natural gas waste cooling heat exchanger includes a first outlet, a second outlet, and a water outlet; the first outlet is connected to the gas turbine pipeline, and the second outlet is connected to the municipal pipeline network.

[0008] In one embodiment of this application, a second refrigerant buffer tank is installed between the high-pressure atomizing pump and the outlet of the natural gas waste cooling heat exchanger.

[0009] In one embodiment of this application, the spray module includes a first spray unit, a second spray unit, and a third spray unit; the first spray unit, the second spray unit, and the third spray unit are arranged sequentially around the air inlet of the gas turbine compressor and in different directions.

[0010] In one embodiment of this application, the first spray unit, the second spray unit, and the third spray unit each include multiple rows of atomizing nozzles.

[0011] In one embodiment of this application, the spray host is sequentially connected to the corresponding first spray unit, second spray unit, and third spray unit via a main spray pipeline and spray branch pipelines; wherein, each spray branch pipeline is provided with a branch controller for independently controlling the operation of the corresponding spray unit.

[0012] In one embodiment of this application, a temperature and humidity sensor is provided inside the air inlet of the gas turbine compressor.

[0013] In one embodiment of this application, a coarse filter and a fine filter are sequentially arranged inside the air inlet of the gas turbine compressor.

[0014] In one embodiment of this application, the unit coil employs a mechanical temperature switch that automatically controls the motor start and stop based on room temperature.

[0015] As described above, the gas turbine spray humidification system based on natural gas waste cooling utilization described in this application has the following beneficial effects:

[0016] The gas turbine spray humidification system based on natural gas waste cooling provided in this application can obtain natural gas that meets the temperature requirements and cooling water with a lower temperature by exchanging heat with the natural gas output from the differential pressure expansion generator. The cooling water is then used to spray humidify the gas turbine compressor, thereby reducing the intake temperature of the gas turbine compressor and cooling the unit coils. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic representation of the overall structure of the gas turbine spray humidification system based on natural gas waste cooling as described in the embodiments of this application.

[0018] Figure 2 The diagram shown is a schematic diagram of the branch spray control in the gas turbine spray humidification system based on natural gas waste cooling utilization, as described in the embodiments of this application.

[0019] Figure 3 The diagram shown is a schematic diagram of the spray control principle structure of the gas turbine spray humidification system based on natural gas waste cooling utilization as described in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures

[0021] 10 High-pressure atomizing pump

[0022] 11 First atomizing pipeline

[0023] 12 Second atomizing pipeline

[0024] 13 Third atomizing pipeline

[0025] 111 Control Valve

[0026] 14 Temperature and humidity sensors

[0027] 15. Coarse Filter

[0028] 16 Fine Filter

[0029] 21 Control Unit

[0030] 211 Sprayer Main Unit

[0031] 212 Spray Main Line

[0032] 213 Branch Controller

[0033] 22 First Refrigerant Buffer Tank

[0034] 23 First Refrigerant Water Pump

[0035] 24 Second refrigerant water pump

[0036] 25 Differential pressure expansion generator

[0037] 26 Waste Cooling Heat Exchanger

[0038] 27 Unit Coil

[0039] 28 Second refrigerant buffer tank

[0040] 29 First Supply Pipeline

[0041] 210 Second Supply Pipeline

[0042] 30 Gas turbine compressor

[0043] 31 Air Inlet

[0044] 40 Gas turbine

[0045] 50 generators

[0046] 60 steam turbine Detailed Implementation

[0047] The present application will be further described below with reference to the accompanying drawings, but the scope of protection of the present application is not limited to the following description.

[0048] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0049] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0050] In this embodiment, the natural gas input to the differential pressure expander generator is from the LNG (liquefied natural gas) pipeline. The pipeline gas has a high pressure, and the pressure is reduced by the differential pressure expander generator, resulting in a lower temperature after the gas enters the expander unit. This is not conducive to the subsequent temperature rise requirement. Furthermore, the natural gas is heated through heat exchange after passing through the differential pressure expander generator, leading to a significant waste of cold energy. Moreover, the natural gas output from the differential pressure expander generator is mainly heated through heat exchange with seawater, resulting in insufficient utilization of cold energy and further energy waste. The gas turbine spray humidification system based on natural gas waste cooling provided in this application embodiment can recover part of the cold energy from the natural gas output from the differential pressure expander generator. This waste cooling is used to reduce the gas turbine intake temperature and increase intake humidity, improving the overall efficiency of the generator unit under summer operating conditions and reducing unit emissions. The waste cooling is also used to cool the unit's coils, effectively utilizing energy, saving energy and reducing NOx emissions.

[0051] The following will combine Figures 1 to 3 This embodiment details a method for implementing a gas turbine spray humidification system based on the utilization of natural gas waste cooling.

[0052] like Figure 1 As shown, this application provides a gas turbine spray humidification system based on natural gas waste cooling utilization. This gas turbine spray humidification system is applied to a gas-steam combined cycle generator set, which includes a gas turbine compressor 30, a gas turbine 40, a generator 50, a steam turbine 60, and a waste heat boiler. The gas turbine spray humidification system based on natural gas waste cooling utilization in this embodiment includes: a waste cooling water unit, a spray humidification unit, and a control unit 21.

[0053] In this embodiment, the waste cooling water unit includes a natural gas waste cooling heat exchanger 26, a differential pressure expansion generator 25, and a chilled water control unit; the differential pressure expansion generator 25 and the chilled water control unit are respectively connected to the water inlet and the air inlet of the natural gas waste cooling heat exchanger 26, and the water outlet of the natural gas waste cooling heat exchanger 26 is respectively connected to the spray humidification unit and at least one unit coil 27.

[0054] Natural gas experiences a significant temperature drop after passing through the turbine expander. To meet the requirement of a natural gas pipeline inlet temperature greater than 2°C, the natural gas output from the differential expansion generator 25 needs to be heated, while the gas turbine compressor 30 also needs to be cooled. Therefore, in this embodiment, a natural gas waste cooling heat exchanger 26 is used to exchange heat between the natural gas output from the differential expansion generator 25 and the demineralized water after seawater treatment. This allows for both the acquisition of heated natural gas and cooled waste cooling water, thereby increasing the natural gas pipeline inlet temperature. Simultaneously, the waste cooling water can be used to spray-cool and humidify the air at the gas turbine compressor 30 inlet, reducing the gas turbine inlet air temperature and increasing the inlet air humidity.

[0055] In one embodiment of this application, the refrigerant water control unit includes a first refrigerant buffer tank 22 and a refrigerant water pump. The first refrigerant buffer tank 22 is connected to both a demineralized water inlet pipe and the outlet of the unit coil 27.

[0056] In this embodiment, the desalinated water (desalinated / demineralized water) has an extremely low ion content, obtained, for example, by pretreatment of seawater followed by SWRO (reverse osmosis) and electrodialysis (ED). The desalinated water enters the first refrigerant buffer tank 22 through the desalinated water inlet pipe. Furthermore, the cooling water generated during the operation of the unit coils 27 can also enter the first refrigerant buffer tank 22, achieving the recycling of water energy.

[0057] In this embodiment, the refrigerant water pump includes a first refrigerant water pump 23 and a second refrigerant water pump 24; wherein, the first refrigerant water pump 23 is a variable frequency pump, and the second refrigerant water pump 24 is a fixed frequency pump. Under low load conditions, variable frequency regulation is used, and under high load conditions, the fixed frequency pump and the variable frequency pump operate simultaneously, and the refrigerant water flow is precisely regulated by the variable frequency pump.

[0058] In one embodiment of this application, the flow rate of natural gas entering the chilled water heat exchanger is dynamically controlled by a natural gas temperature control valve, thereby achieving intelligent regulation of the temperature of natural gas and chilled water.

[0059] In one embodiment of this application, the gas outlet of the natural gas waste cooling heat exchanger 26 includes a first gas outlet, a second gas outlet, and a water outlet; wherein, the first gas outlet is connected to the gas turbine pipeline (first supply pipeline 29), and the second gas outlet is connected to the municipal pipeline network (second supply pipeline 210).

[0060] In this embodiment, the natural gas output by the differential pressure expansion generator 25 is heated to the required temperature after passing through the natural gas waste cooling heat exchanger 26, and is then supplied to the gas turbine pipeline and the municipal pipeline network through the first supply pipeline 29 and the second supply pipeline 210, respectively.

[0061] In this embodiment, the low-temperature characteristics of natural gas after exiting the differential pressure expansion generator 25 are utilized to perform a heat exchange with demineralized water to obtain natural gas with a higher temperature and chilled water with a lower temperature.

[0062] In this embodiment, the residual cooling water output from the outlet of the natural gas residual cooling heat exchanger 26 continues to cool the gas turbine compressor 30 and the unit coil 27. That is, in this embodiment, part of the cold energy of the natural gas output from the differential pressure expansion generator 25 is recovered, the residual cooling is used to reduce the gas turbine intake temperature, improve the overall efficiency of the generator set in summer operating conditions, and the residual cooling is used to cool the unit coil 27, thereby achieving full utilization of energy.

[0063] In this embodiment, the unit coil 27 is, for example, a vertical fan coil unit, and there can be multiple unit coils 27. The unit coil 27 is an air-cooled radiator. Preferably, the inlet water flow rate of each unit coil 27 is no more than 4t / H, and the inlet and outlet pipes use DN40 to meet practical requirements.

[0064] In this embodiment, the spray humidification unit includes a high-pressure atomizing pump 10 and at least one spray module; the high-pressure atomizing pump 10 is connected to the outlet of the natural gas waste cooling heat exchanger 26, and the spray module is located at the air inlet 31 of the gas turbine compressor 30 to spray and cool the air entering the gas turbine compressor 30.

[0065] In one embodiment of this application, a second refrigerant buffer tank 28 is installed between the high-pressure atomizing pump 10 and the outlet of the natural gas waste cooling heat exchanger 26. That is, the high-pressure atomizing pump 10 obtains water from the second refrigerant buffer tank 28.

[0066] In this embodiment, the waste cooling water output from the outlet of the natural gas waste cooling heat exchanger 26 is pressurized by the high-pressure atomizing pump 10 to form a high-pressure water source. The high-pressure water source is atomized by the spray module and enters the gas turbine compressor 30 along with the air to cool the gas turbine compressor 30.

[0067] In one embodiment of this application, the spray module includes a first spray unit, a second spray unit, and a third spray unit, forming a first atomizing pipeline 11, a second atomizing pipeline 12, and a third atomizing pipeline 13. The first spray unit, the second spray unit, and the third spray unit are arranged sequentially around the air inlet 31 of the gas turbine compressor 30 and in different directions. That is, the spray units are evenly distributed on the three windward surfaces of the gas turbine compressor 30.

[0068] In this embodiment, the control unit 21 includes a spray host 211, which is connected to the spray humidification unit and controls the operation of the spray humidification unit. The spray host 211 consists of a PLC controller, a touch screen display, a frequency converter, and other electrical components. All important parameters of the spray humidification unit, including the inlet and outlet humidity of the spray area, the pump station inlet pressure, the pump station outlet pressure, and water consumption, can be displayed on the touch screen display. Simultaneously, the settings of relevant parameters of the spray humidification unit can be changed via the touch screen display, such as changing the desired outlet humidity.

[0069] Specifically, such as Figure 2 As shown, the spray host 211 is connected to the corresponding first spray unit, second spray unit and third spray unit in sequence through the main spray pipeline 212 and the spray branch pipeline; wherein, the main spray pipeline 212 is provided with a control valve 111 to control the operation of all the spray humidification units, and each of the spray branch pipelines is provided with a branch controller 213 for independently controlling the operation of the corresponding spray unit.

[0070] Among them, such as Figure 2 As shown, in one embodiment of this application, the first spray unit, the second spray unit, and the third spray unit each include multiple rows of atomizing nozzles. The high-pressure water source output by the high-pressure atomizing pump 10 generates water vapor micro-mist with a particle diameter of 20-30 micrometers within each atomizing nozzle. The micro-mist is sprayed out from the nozzle outlet. These fine water mist particles rapidly evaporate in dry air with an RH of 30%-40% and enter the air inlet 31 of the gas turbine compressor 30 along with the air. That is, during the air spray humidification process, the evaporation of the water mist absorbs heat from the air, achieving an air cooling effect.

[0071] In addition, in this embodiment, air humidification combustion can also reduce NOx generation. Specifically, humidification combustion can lower the combustion temperature in the combustion chamber and reduce NOx generation. Increased air humidity may also affect the combustion chemical reaction mechanism, thereby reducing NOx generation during combustion.

[0072] Therefore, the spray module in this embodiment can not only reduce the inlet temperature of the gas turbine compressor 30, reduce NOx emission concentration, and reduce environmental tax costs, but also increase the maximum output of the gas turbine unit in summer to meet the market peak shaving demand, and reduce the total annual NOx emissions, thus reducing environmental pollution and achieving good social benefits.

[0073] Figure 3 The diagram shown is a schematic representation of the spray control principle structure in a gas turbine spray humidification system based on natural gas waste cooling, as described in an embodiment of this application. Figure 3As shown, in this embodiment, the second refrigerant buffer tank 28 is equipped with multiple liquid level sensors: a high liquid level sensor K11, a medium liquid level sensor K12, and a low liquid level sensor K13. Temperature and humidity sensors 14 (T11, T12, T13) can be installed on the spray branch lines respectively, and ball valves (V23 to V27) are installed on the pipelines of each row of atomizing nozzles. Several ball valves (V11, V12, V13, V14, V21, V22, V16), solenoid valves (B10 to B12), pressure gauges (PL1), pump group P11, pressure reducing valve (B14), pressure relief valve (PS11), check valve (R11), electromagnetic flow meter (B13), filter (F11), and pressure sensor (PT11) are installed on the main spray line 212 and / or the spray branch lines. The atomizing nozzles and spray flow rate are controlled through the coordinated action of these various valves.

[0074] In one embodiment of this application, a temperature and humidity sensor 14 is installed inside the air inlet 31 of the gas turbine compressor 30. Based on changes in data detected by the temperature and humidity sensor 14 or actual emission changes, the output of the variable frequency pump can be adjusted via the spray host 211 to change the total spray volume and improve emission parameters. Simultaneously, adjusting the total spray volume can appropriately reduce the gas turbine inlet temperature, improving the overall efficiency of the generator set under summer operating conditions.

[0075] The spray volume of the nozzles is automatically adjusted based on the change in humidity before and after humidification of the air intake of the gas turbine compressor 30, ensuring that the humidity of the air drawn into the gas turbine compressor 30 is maintained within an appropriate humidity range. Specifically, when the humidity of the humidified air reaches the set humidity, the spray volume is reduced through the group controller and the frequency converter of the spray host 211; when the humidity of the humidified air is lower than the set humidity, the spray volume is increased through the group controller and the frequency converter, thereby ensuring that the humidity of the humidified air is controlled within the set range.

[0076] In one embodiment of this application, a coarse filter 15 and a fine filter 16 are sequentially arranged inside the air inlet 31 of the gas turbine compressor 30. The coarse filter 15 serves as the first line of defense, primarily intercepting large particles such as sand, hair, and insect remains, preventing them from directly impacting the precision components downstream of the gas turbine compressor 30. The fine filter 16 performs deep filtration of fine particles such as PM2.5, salt spray, and oil mist, ensuring that the air entering the gas turbine compressor 30 meets the ISO 8573 standard, typically requiring ≤0.1μm. Although these particles are small, long-term accumulation can still lead to blade wear, reduced efficiency, and even malfunctions.

[0077] In this embodiment, the air quality is gradually improved through the coarse filter 15 and the fine filter 16 to meet the high requirements of the gas turbine compressor 30 for clean air.

[0078] In one embodiment of this application, the fan coil unit 27 employs a mechanical temperature switch that automatically controls the motor's start and stop based on room temperature. The fan coil unit motor uses a mechanical temperature switch to automatically control its start and stop based on room temperature, offering advantages such as simple and reliable control, no need for additional circuits, and a simple and low-cost system.

[0079] This embodiment combines the low-temperature cold energy from the outlet of the natural gas differential pressure expansion generator 25 with the high-efficiency cooling requirements of the gas turbine compressor 30 and the unit coil 27, fully demonstrating a new approach to cold energy recovery and utilization. By adopting a closed-loop chilled water system and dynamic temperature control technology, seamless integration of natural gas cold energy and the chilled water system is achieved, optimizing the overall energy efficiency of the system.

[0080] In summary, the gas turbine spray humidification system based on natural gas waste cooling provided in this application can obtain natural gas that meets the temperature requirements and cooling water with a lower temperature by exchanging heat between seawater and the air output from the differential pressure expansion generator 25. The cooling water is then used to spray humidify the gas turbine compressor 30, thereby reducing the intake temperature of the gas turbine compressor 30 and cooling the unit coil 27.

[0081] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A gas turbine spray humidification system based on natural gas waste cooling utilization, characterized in that, include: The unit includes a residual cooling water unit, a spray humidification unit, and a control unit; among which: The waste cooling water unit includes a natural gas waste cooling heat exchanger, a differential pressure expansion generator, and a chilled water control unit; the differential pressure expansion generator and the chilled water control unit are respectively connected to the air inlet and water inlet of the natural gas waste cooling heat exchanger, and the water outlet of the natural gas waste cooling heat exchanger is respectively connected to the spray humidification unit and at least one unit coil. The spray humidification unit includes a high-pressure atomizing pump and at least one spray module; the high-pressure atomizing pump is connected to the outlet of the natural gas waste heat exchanger, and the spray module is located at the air inlet of the gas turbine compressor to spray and cool and humidify the air entering the gas turbine compressor inlet; The control unit includes a spray host, which is connected to the spray humidification unit and controls the operation of the spray humidification unit.

2. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 1, characterized in that, The refrigerant water control unit includes a first refrigerant buffer tank and a refrigerant water pump; the first refrigerant buffer tank is connected to the demineralized water inlet pipe and the outlet of the unit coil, respectively.

3. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 1, characterized in that, The gas outlet of the natural gas waste heat exchanger includes a first gas outlet, a second gas outlet, and a water outlet; the first gas outlet is connected to the gas turbine pipeline, and the second gas outlet is connected to the municipal pipeline network.

4. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 1, characterized in that, A second refrigerant buffer tank is installed between the high-pressure atomizing pump and the outlet of the natural gas waste heat exchanger.

5. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 1, characterized in that, The spray module includes a first spray unit, a second spray unit, and a third spray unit; the first spray unit, the second spray unit, and the third spray unit are arranged sequentially around the air inlet of the gas turbine compressor and in different directions.

6. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 5, characterized in that, The first spray unit, the second spray unit, and the third spray unit each include multiple rows of atomizing nozzles.

7. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 5 or 6, characterized in that, The spray host is connected in sequence to the first spray unit, the second spray unit, and the third spray unit via the main spray pipeline and the branch spray pipelines; wherein, each of the branch spray pipelines is provided with a branch controller for independently controlling the operation of the corresponding spray unit.

8. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 1, characterized in that, A temperature and humidity sensor is installed inside the air inlet of the gas turbine compressor.

9. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 1 or 8, characterized in that, The gas turbine compressor has a coarse filter and a fine filter installed inside its air inlet.

10. The gas turbine spray humidification system based on natural gas waste cooling utilization according to claim 1, characterized in that, The unit's coil uses a mechanical temperature switch that automatically controls the motor's start and stop based on room temperature.

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