753 results about "Combined cycle" patented technology

The invention provides a one-key start-stop operation monitoring method and system for a gas-steam combined cycle unit, and relates to the technical field of equipment state monitoring, and the method comprises the steps: obtaining operation data, carrying out the data cleaning, noise reduction and standardization, and extracting the performance characteristics of the unit; constructing a component correlation model based on the spatial-temporal characteristics, and optimizing operation efficiency parameters; and performing fault diagnosis by using a multi-modal feature enhancement network, constructing a layered optimization control system, and performing control strategy optimization to obtain an optimal control strategy. According to the invention, intelligent monitoring, fault diagnosis and optimal control of the gas-steam combined cycle unit can be realized, the operation efficiency and reliability of the unit are improved, the fault risk is reduced, and the service life of equipment is prolonged.

The invention relates to the technical field of energy, in particular to a dynamic self-adaptive control method and system for a gas-steam combined cycle unit, and the method comprises the steps: constructing a multi-modal model library comprising a plurality of operation modes; operating parameters and environment parameters of the unit are collected in real time, and multi-source data fusion and system state evaluation are carried out; carrying out multi-time scale prediction on the load demand, fuel characteristics and environmental parameters of the unit based on a deep learning model; dynamically selecting model precision according to a prediction result, and implementing a multi-mode collaborative optimization decision to generate a control instruction; and executing the control instruction and monitoring an execution effect, and carrying out adaptive adjustment on model parameters and strategies according to feedback. According to the method, the unit can maintain efficient and stable operation under the scenes of power grid peak regulation, rapid load fluctuation, complex environment change and the like, meanwhile, pollutant emission is reduced, and the service life of key equipment is prolonged.

The invention discloses a gas-steam combined cycle unit power plant load prediction and optimal scheduling method and system based on artificial intelligence, and relates to the technical field of artificial intelligence. Load data and unit output of a gas-steam combined cycle unit power plant are recorded in real time; load fluctuation characteristics are extracted based on the load data, prediction error feedback is obtained, an adaptive time window mechanism is introduced, and the time window length of next prediction is adjusted according to the current load fluctuation characteristics and the prediction error feedback; extracting a multi-time scale fusion feature of the load data of each time step in the time window according to the updated time window length; constructing a load prediction model, and predicting future load data based on the multi-time scale fusion features of each time step; based on the current unit output, the future load data and the self-adaptive time window mechanism, constructing a reinforcement learning model to optimize the unit output adjustment value of the gas-steam combined cycle unit power plant; and the self-adaptability of load prediction and optimal scheduling is realized.

The invention discloses a distributed energy system based on a gas turbine and a compressed air energy storage technology, and belongs to the technical field of distributed energy systems, the distributed energy system comprises a gas turbine unit, a filter, a combustion part arranged at the downstream of the filter, and a heat exchange part arranged at the downstream of the combustion part; the compression energy storage unit comprises a compression part arranged at the downstream of the filter and a first heat exchanger connected between the gas turbine unit and the compression energy storage unit; the system further comprises two heat sources, three cold sources and two power sources. According to the distributed energy system based on the gas-air combined cycle, the gas turbine system and the energy storage system can operate independently, and can operate in a coupling mode at the peak of electricity utilization. The whole system has the combined cooling heating and power supply function and the electric energy storage function, the problem of flexible regulation and control of the cooling heating and power proportion in a conventional CCHP system can be solved, and the efficiency of a conventional compressed air energy storage system can be improved.

According to the thermal power generating unit emission prediction method based on machine learning, a thermal power generating unit comprises a gas turbine combined cycle power generation system, and the thermal power generating unit emission prediction method is characterized by comprising the following steps that time sequence data of each time step t of the thermal power generating unit are collected in real time, and the time sequence data comprise combustion parameters and mechanical state parameters of a gas turbine; obtaining input data of an input layer according to the combustion parameters and the mechanical state parameters; the transient condition of each time step t of the thermal power generating unit is obtained; generating an event marking sequence mt according to the transient working condition; and inputting the input data into an input layer of the LSTM model, and inputting the event marking sequence mt into an attention layer of the LSTM model to obtain an output predicted emission amount. According to the method, the transient working condition is directly input into the attention layer of the LSTM model as independent input, different transient working conditions can be accurately adapted, and the emission prediction capacity under complex scenes such as variable loads and start and stop is remarkably improved.

The invention discloses a double-medium heat storage type gas-steam combined cycle combined heat and power generation unit which comprises a gas turbine power generation system, a waste heat boiler system, a steam turbine power generation system, a flue gas bypass baffle, a fused salt heat storage system, a water heat storage system, a heat storage water feeding pump and the like. In the off-peak period of power utilization of a power grid, the double-medium energy storage system firstly stores exhaust heat of a gas turbine, the effect that a steam turbine is reduced to the minimum load and even stops running is achieved, then residual on-grid electric quantity heat of a unit is stored, and the double-medium energy storage system releases heat and generates steam to supply industrial steam extraction of the unit while storing heat; in the peak period of power utilization of the power grid, the double-medium energy storage system releases heat and generates steam to supply industrial steam extraction of the unit and extrudes steam extraction of the original unit, and the original steam turbine generates power at the peak. A flexible and efficient combined heat and power generation mode is provided, the problems that a gas-steam combined cycle combined heat and power generation unit is low in heat supply energy efficiency and serious in loss in the power utilization trough period of a power grid are solved, and the operation flexibility of the unit is improved.

The invention discloses a gas-steam combined cycle unit denitration system control method and system, and relates to the technical field of gas turbine control, and the method comprises the steps: obtaining the operation parameters of the gas-steam combined cycle unit denitration system control process, and correcting the gas turbine load through the air temperature of the inlet of a gas compressor, calculating a load feed-forward control quantity and an exhaust flow feed-forward control quantity through a feed-forward function based on the corrected gas turbine load and gas turbine exhaust flow; calculating feedback control quantity through a PID (Proportion Integration Differentiation) controller on the basis of the nitrogen oxide concentration set value at the outlet of the waste heat boiler and the actual nitrogen oxide concentration; summing the feedforward control quantity and the PID feedback control quantity to obtain a feedforward-feedback control quantity, and correcting the feedforward-feedback control quantity through an SCR spray gun input rate correction function to obtain a final urea solution flow regulating valve instruction. The method disclosed by the invention has better effects in the aspects of rapidity, reliability and stability of the denitration control system.

The invention discloses a steam reinjection type gas-steam combined cycle system for waste heat recovery. The system comprises a gas turbine FGH / TCA system, a combustion chamber steam reinjection device and a waste heat boiler combined heat exchange module. The gas turbine FGH / TCA system is provided with an FGH heat exchanger and a TCA heat exchanger; a cold side inlet of the FGH heat exchanger is connected with a cold natural gas pipeline, and an outlet is connected with the combustion chamber; the hot side is communicated with a waste heat boiler water pumping and guiding pipeline. The hot side of the TCA heat exchanger is connected with a gas compressor pumping pipeline, and the cold side is communicated with a hot side outlet of the FGH heat exchanger. Part of outlet water from a high-pressure coal economizer and a medium-pressure coal economizer of the waste heat boiler heats cold natural gas to a set temperature in the FGH, then the cold natural gas is fed into the cold side of the TCA heat exchanger to absorb air exhaust heat of an air compressor to become superheated steam, and the superheated steam is injected into a combustion chamber and a cold reconnection box. The problem of unbalanced heat of the FGH / TCA system is solved, the combustion chamber is subjected to steam injection transformation, and the output power and efficiency of the system are improved.

A thermal energy storage (TES) system converts variable renewable electricity (VRE) to continuous heat at over 900° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. The delivered heat which may be used for processes including power generation and cogeneration. Configurations of simple cycle systems and combined cycle power plants using thermal energy storage units can provide even greater efficiency and responsiveness.

The invention discloses a gas-steam combined cycle unit cold-state quick starting system which comprises a preheating air source, a generator, a gas turbine and a steam turbine, the steam turbine comprises a high-pressure cylinder, an intermediate-pressure cylinder and a low-pressure cylinder, and the preheating air source is connected with a preheating steam conveying pipeline leading to the high-pressure cylinder and the low-pressure cylinder; a steam inlet of the high-pressure cylinder is connected with a high-pressure main steam pipeline, a first electric isolating valve is arranged on the high-pressure main steam pipeline, and the high-pressure main steam pipeline is connected with a pre-heating steam conveying pipeline through a high-pressure conveying pipeline and a drain expansion pipeline; a steam exhaust port of the high-pressure cylinder communicates with an inlet of the reheater through a low-pressure reheat steam pipeline, and an outlet of the reheater communicates with a steam inlet of the medium-pressure cylinder through a high-temperature reheat steam pipeline. According to the system, the steam pre-warming of the steam cylinder is realized by utilizing the valve and the structure which are arranged in the steam turbine set, meanwhile, the water vapor loss is not caused, a new valve does not need to be arranged, the cost is saved, and the pre-warming efficiency is improved.

A propulsion system for an air vehicle includes a fan system that includes a fan that is coupled to a fan drive electric motor for generating a fan discharge airflow, an augmentor where fuel is mixed with a portion of the fan discharge airflow to generate a propulsive flow in a first operating configuration, a bypass duct for directing the fan discharge airflow into the augmentor, a duct blocker for selectively closing the bypass duct to the fan discharge airflow, a liquid oxygen system that is configured to inject liquid oxygen into the augmentor to mix with the fuel when the fan discharge airflow is closed by the duct blocker, the mixture of fuel flow and liquid oxygen generates the propulsive flow in a second operating configuration, and an electric power generation system is coupled to drive the fan drive electric motor.

The invention discloses a gas turbine air inlet temperature coordinated regulation and control system based on waste heat multi-stage utilization and an operation method, and relates to the technical field of combined cycle unit energy conservation, the system comprises a waste heat recovery module, an air inlet temperature regulation and control module, an energy conversion module and a control module; high-temperature exhaust smoke of the waste heat boiler is used as a heat source to heat a flue gas heat exchanger at the tail of the waste heat boiler of the combined cycle unit to generate hot water, and the hot water is used for directly heating inlet air of a gas turbine, driving an absorption heat pump to generate cold water to cool the inlet air of the gas turbine or driving an organic Rankine cycle module to generate power to be connected into auxiliary power, so that multipurpose utilization of waste heat of the unit is realized; in addition, the invention provides an operation method for synergistically improving the efficiency of the system and the combined cycle unit, the wide-load operation capacity and the partial-load energy utilization capacity of the unit can be effectively improved, meanwhile, the waste heat recovery capacity under the high-temperature condition is guaranteed, and the energy consumption efficiency of the unit is comprehensively improved.

A combined cycle power generation and storage system is shown. A liquid air energy storage system uses excess power to liquefy air and stores it in a liquid state. A combustion engine produces power by combustion of a carbon-based fuel along with an exhaust stream containing carbon dioxide. A heat recovery system exchanges heat from the exhaust stream to air from the liquid air storage system, and thereby produce a cooled exhaust stream and heated air. An air expansion machine recovers power by expansion of heated air from the heat recovery system. A separation system separates carbon dioxide from ambient air prior to liquefaction during operation of the liquid air energy storage system, and separates carbon dioxide from the cooled exhaust stream during operation of the combustion engine prior to emission of the cooled exhaust stream to atmosphere.

The invention belongs to the field of acoustic speed measurement, and particularly relates to a combined cycle waste heat boiler inlet flue gas flow velocity acoustic monitoring system and method, and the system comprises a pneumatic sound source device which is used for generating a pneumatic sound wave signal and transmitting the pneumatic sound wave signal into a flue gas pipeline; the sensor system is used for collecting pneumatic sound wave signals sent by the pneumatic sound source device and obtaining downwind propagation sound wave signals and upwind propagation sound wave signals through the pneumatic sound wave signals; the pneumatic sound wave signal processing system is electrically connected with the sensor system and is used for calculating the gas flow rate on a corresponding path according to the downwind propagation sound wave signal and the upwind propagation sound wave signal collected by the sensor system and displaying a measurement result; the sensor system is provided with one transmitter and two receivers, the propagation velocities of sound in downstream and countercurrent can be obtained at the same time, the influence of sound velocity change on a time difference method is avoided by using the principle that the sound velocity is different in downstream and countercurrent conditions, and the requirement for measuring the outlet flow velocity of the gas turbine is met.

The invention discloses a digital control integrated system for an auxiliary workshop of a power plant, and relates to the field of digital control, which comprises the steps of configuring sensor layout and measuring points, acquiring operating parameters based on sensors, acquiring processing parameters based on sensors, acquiring noise data based on sensors, and acquiring parameters of a heat supply system based on sensors. A multi-level sensor arrangement and operation parameter acquisition module, an industrial Ethernet control and multi-protocol interconnection communication module, a dynamic threshold comparison and combined cycle working condition analysis module and a cooperative control and multi-system synchronous scheduling module are configured in a power plant auxiliary workshop. The closed-loop monitoring and secondary correction control module and the historical database archiving and optimization learning module realize unified acquisition, centralized control and intelligent optimization of a gas turbine control system, a steam turbine control system, a waste heat boiler control system, a chemical water treatment control module, an environmental protection monitoring system and a heat supply system adjusting device.

The invention discloses a gas turbine exhaust temperature control method and system, and relates to the technical field of gas turbines.The method comprises the steps that operation data of a gas turbine unit are collected, and the generating efficiency of the unit is calculated in real time; according to the starting condition of IGV temperature control reference correction, whether the unit load triggers IGV temperature control reference correction logic or not is judged; and based on IGV temperature control reference correction logic, the IGV temperature control reference is dynamically adjusted, and the turbine exhaust temperature is controlled. According to the method, the generating efficiency of the unit is calculated in real time and compared with a historical efficiency value, the IGV temperature control reference correction is dynamically adjusted, so that the turbine exhaust temperature is always close to the optimal value within a safe range, the output matching degree of a gas turbine and a steam turbine is improved, and therefore the overall efficiency of the combined cycle unit is improved; and by setting a manual switching mechanism, an operator can disable a correction function at any time, a traditional control mode is recovered, and safe operation of the unit is prevented from being influenced when algorithm abnormity or extreme working conditions occur.

The invention relates to a coal-electricity coupling hydrogen production system and method in an electric power spot market environment, and the system is used for determining load output data of a coal-fired generator set according to a market price signal and a scheduling instruction through a coal machine power generation module. And the water electrolysis hydrogen production module is used for receiving the load output provided by the coal machine power generation module and supplying power to the alkaline electrolytic bath and the proton exchange membrane electrolytic bath through power conversion equipment to prepare hydrogen. And the hydrogen storage module is used for receiving the hydrogen of the water electrolysis hydrogen production module, purifying the hydrogen and storing the hydrogen in a hydrogen storage tank area. And the gas turbine hydrogen doping module is used for conveying hydrogen to the gas mixing station and the combustion-steam combined cycle unit through a pipeline according to the hydrogen storage amount of the hydrogen storage module and the load requirement of the gas turbine. The energy utilization efficiency of the coal-electricity coupling hydrogen production system is improved, and the problem that the coal-electricity coupling hydrogen production system is low in resource utilization rate and further low in economic benefit when power is supplied beyond the selling negative electricity price in the related technology is solved.

The invention discloses a supercharged SOFC / GT combined cycle system and a starting method, and relates to an SOFC / GT combined cycle system and a starting method. The invention aims to solve the problem that the requirements of short starting time and high energy utilization rate cannot be met in the prior art. The system comprises a gas compressor, the gas compressor is coaxially connected with a turbine and a permanent magnet synchronous motor, an outlet of the gas compressor is connected with an inlet of a first flow divider, one outlet of the first flow divider is connected with a first battery assembly, and the other outlet of the first flow divider is connected with an inlet of a second flow divider; one outlet of the second shunt is connected with a heat exchanger assembly, the other outlet of the second shunt is connected with a combustion chamber, an outlet of the combustion chamber is connected with a turbine, an outlet of the turbine is connected with a heat exchange assembly, the heat exchange assembly is connected with the combustion chamber, the permanent magnet synchronous motor is connected with a power grid bus, and the power grid bus is connected with a second battery assembly. The first battery assembly is connected with the power grid bus. The invention belongs to the technical field of energy power equipment.

The invention relates to the technical field of artificial intelligence and thermal power plant automation, in particular to a self-adaptive analysis method and related equipment for performance degradation of a combined cycle unit, and the method comprises the steps: obtaining historical and real-time operation data of the combined cycle unit, and determining related parameters of target parameters based on the historical data. And inputting the correlation parameters into corresponding prediction models, predicting to obtain an optimal value, and obtaining a target parameter prediction value according to the optimal value. Then, according to the predicted value and the real-time data, the degradation amount is calculated, the degradation amount reflects the abrupt change condition of the target parameter under the unit operation working condition, and if the degradation amount exceeds a preset threshold value, contribution degree analysis is conducted on relevant parameters of target parameter degradation of the abnormal time node; and finally, in combination with an analysis result and the fault knowledge graph, determining a fault reason, and giving a recommended maintenance scheme.

The invention relates to the technical field of gas turbine combined cycle systems, in particular to a load prediction method and system for a gas turbine combined cycle system based on a nonlinear regression model.The method comprises the steps that historical data of the cycle system are obtained, and the historical data comprise operation parameters, heat efficiency and system loads; based on the thermodynamic equation and the operation parameters, calculating to obtain the theoretical efficiency of the circulating system; using the operation parameters, the thermal efficiency and the theoretical efficiency to form a historical feature set; and predicting the load of the gas turbine combined cycle system. According to the method, a feature set containing real-time state monitoring, actual performance evaluation and physical limit constraint is constructed, irreversible loss in system operation is quantified, physical constraint conditions are provided for prediction, overfitting or working condition extrapolation failure caused by lack of physical significance of a pure data driving model is avoided, and prediction accuracy is improved.

The invention relates to the technical field of gas-steam combined cycle power generation, and particularly discloses a combined cycle unit operation and maintenance system and method based on a large language model, and the system comprises a screening module which is used for obtaining the overall operation parameters of a combined cycle unit, screening out key operation parameters of the unit according to the overall operation parameters of the combined cycle unit; the early warning module is used for predicting the change trend of the key operation parameters, determining a key operation parameter prediction value according to the change trend of the key operation parameters, and determining an early warning level according to the key operation parameter prediction value; the operation and maintenance module is used for determining a corresponding fault operation and maintenance strategy according to the key operation parameters when the early warning level exceeds a preset safety level; and the updating module is used for performing fault operation and maintenance on the combined cycle unit according to the fault operation and maintenance strategy, obtaining the operation and maintenance effect of the unit after the fault operation and maintenance, and updating the fault operation and maintenance strategy according to the operation and maintenance effect. Operation and maintenance of the unit are carried out based on the large language model, and accuracy and efficiency are improved.

The invention relates to the technical field of energy consumption optimization, and provides a heater energy consumption optimization method and system based on gas-steam combined cycle. The method comprises the steps that gas turbine exhaust, waste heat boiler steam and heater operation parameters are collected in real time, and a dynamic energy consumption data set is constructed; training a load prediction model based on the historical load curve and the meteorological data, and outputting future load distribution; performing multi-working-condition energy consumption simulation according to the data set and the predicted load, and generating an energy consumption characteristic topological graph and a thermal efficiency fluctuation graph; and based on the atlas, optimizing heater control parameters by taking energy consumption minimization as a target, generating an optimal control set, and regulating and controlling the running state of the heater. The technical problems that in an existing gas-steam combined cycle system, heater energy consumption control is not accurate, and efficiency fluctuation is large are solved, and the technical effects that through combination of real-time data collection and a prediction model, heater energy efficiency optimization and control parameter dynamic adjustment are achieved, and therefore energy consumption is reduced to the maximum extent, and heat efficiency is improved are achieved.

The invention provides a method for optimizing an integrated coal gasification combined cycle process by utilizing solar energy. The method comprises the following steps: generating hydrogen and oxygen through photovoltaic electrolysis of water; the dead steam / oxygen mixed gas is heated through fused salt generated through photo-thermal; the coal gasifier is heated through fused salt generated through photo-thermal; carrying out pre-combustion carbon capture on the cooled synthesis gas through an MOF material with a photoinduced structural transformation property; the synthesis gas subjected to carbon capture in the combustion chamber and the other part of oxygen are subjected to pure oxygen combustion; and cooling the flue gas for carbon capture after combustion. According to the method, the operation load fluctuation, the energy consumption and the carbon capture cost of the coal gasification combined cycle process are reduced, and the overall economy is improved.

The invention relates to a zero-emission technology for producing power in a thermal plant using natural gas (NG) or liquefied natural gas (LNG), followed by capturing carbon dioxide (CO2) and converting it into green Dimethyl Ether (DME). The process integrates a gas-based combined cycle power plant with CO2 capture through Pressure Swing Adsorption (PSA) (106) and Monoethanolamine (MEA) purification. Captured CO2 undergoes a Reverse Water Gas Shift (RWGS) (306) reaction at temperatures above 900°C to form CO, which, along with syngas from steam methane reforming (308a, 308) at 525°C to 900°C and 25 ATA pressure, is converted into DME using a Cu / ZnO / Al2O3 catalyst at 250-300°C and 25-40 ATA. The process achieves an energy efficiency factor of 93.04%, producing 92 kg of DME per 48 kg of LNG, with a 94% greenhouse gas abatement, contributing to net-zero emissions (NZE) while generating bulk thermal power.

The invention discloses an integrated heat storage gas-steam combined cycle power generation system and an operation method thereof. The integrated heat storage gas-steam combined cycle power generation system comprises a gas turbine power generation unit, a fused salt heat storage unit and a waste heat boiler steam power generation unit. When sunlight is sufficient, the gas turbine power generation unit is switched to a low-load operation mode, the fused salt heat storage unit heats to generate reheated steam, inlet feed water of the waste heat boiler is preheated, and the peak regulation depth of gas-steam combined cycle is increased; and when sunlight is insufficient, the fused salt heat storage unit continuously releases heat storage capacity to maintain the stability of main steam parameters and quits operation until the heat storage capacity reaches a critical threshold value, at the moment, the gas turbine power generation unit is improved to the reference load to operate, and stable power supply of a power grid is ensured. The novel hybrid power generation system is constructed by fully utilizing the heat storage characteristic of the fused salt and combining the flexible scheduling capability of the gas turbine unit, so that the operation flexibility is improved, the fuel consumption is reduced, and the energy utilization efficiency is improved.

The invention discloses a fuel gas and steam combined cycle power generation system coupling fused salt heat storage and biomass energy storage, which comprises a fuel gas and steam combined cycle power generation subsystem, a fused salt heat storage and release subsystem and a biomass energy storage system, an outlet of the gas-steam combined cycle power generation subsystem is connected with the fused salt heat storage and release subsystem and the biomass energy storage system, and a smoke outlet of the biomass energy storage system is connected with the gas-steam combined cycle power generation subsystem. And the utilization efficiency of energy and the economical efficiency of the system are improved.

A power plant is configured to output power to a grid power system and comprises a hydrogen generation system configured to produce hydrogen, a gas turbine combined cycle power plant comprising a gas turbine engine configured to combust hydrogen from the hydrogen generation system to generate a gas stream that can be used to rotate a turbine shaft and a heat recovery steam generator (HRSG) configured to generate steam with the gas stream of the gas turbine engine to rotate a steam turbine, a storage system configured to store hydrogen produced by the hydrogen generation system, and a controller configured to operate the hydrogen generation system with electricity from the grid power system when the grid power system has excess energy and balance active and reactive loads on the grid power system using at least one of the hydrogen generation system and the gas turbine combined cycle power plant.

An air breathing engine system has an engine inlet configured to receive a flow of air. A combustor is in fluid communication with the engine inlet. A rocket ejector is positioned between the engine inlet and combustor. The rocket ejector is connected to the combustor with a mixing tube. The rocket ejector adjustably outputs high-temperature gas into air in the mixing tube. The high-temperature gas changes a pressure and thermal energy of the air within the mixing tube, which can be used to optimize combustor operation, such as based on a trajectory, flight condition, or speed of an aircraft propelled by the air breathing engine system.

The invention discloses a hydrogen energy and natural gas differential pressure power generation combined cycle energy utilization system, and relates to the technical field of natural gas excess pressure recycling and hydrogen energy. The hydrogen energy and natural gas differential pressure power generation combined cycle energy utilization system comprises a natural gas differential pressure power generation unit, high-pressure natural gas is converted into low-temperature and low-pressure natural gas after being subjected to power generation through the natural gas differential pressure power generation unit, and electric energy generated by the natural gas differential pressure power generation unit supplies power to a hydrogen production unit; a circulating medium is arranged in an equipment pipeline of the intermediate circulating unit, and cold energy of the low-temperature and low-pressure natural gas is used for providing cold energy for hydrogen storage through the intermediate circulating unit. The natural gas differential pressure power generation technology and the hydrogen energy industry chain are fully combined, and the advantage of achieving gradient utilization of energy is achieved.

An adjusting device for a water system of a combined cycle unit comprises a controller, the combined cycle unit, a cooling water tank, a sedimentation filter tank, a medicament reaction tank, a scale inhibitor water tank, a corrosion inhibitor water tank, a sterilization algicide water tank, a diverter pump, a cooling tower, a standby water storage tower, a confluence water pump and a temperature measurement and control device. According to the device, all the parts are connected through the water conveying pipeline, cyclic utilization and dosing treatment of cooling water are achieved, water scale is reduced, the metal corrosion speed is slowed down, and microorganism growth is inhibited. When the temperature of the combined cycle unit exceeds a set threshold value, the temperature measurement and control device can send an electric signal to the controller, the controller controls the standby cooling tower to be started and pumps cooling water into the standby water storage tower to be cooled, and the cooling water is pumped into the combined cycle unit to be cooled after being cooled. And finally, cooling water is pumped back to the cooling water pool through a water pump, and a circulation period is completed.