861results about "Combined combustion mitigation" patented technology

The utility model relates to the technical field of incinerator processing, in particular to a uniform anti-coking coating smearing device for a combustion chamber of a garbage incinerator, which comprises a bearing rack, a first lead screw is rotatably connected to one end in the bearing rack, and a push frame is slidably connected to one end of the top of the bearing rack; and the other end of the top of the bearing rack is fixedly connected with a fixed base, the bottom of the push frame is connected to the outer wall of the first lead screw in a sleeving and threaded mode, and an outer push rod is welded to the top of the push frame. According to the improved smearing device, the push frame achieves horizontal transmission through the lead screw, it is ensured that the spraying assembly moves along a set linear track, deviation is avoided, the coating uniformity is improved, the annularly-distributed high-pressure spray heads are combined with the rotatable workpiece, all parts of the workpiece receive paint spraying from different directions, and the spraying efficiency is improved. In addition, the extension rod can adjust the contact distance between the high-pressure nozzle and the inner wall of the workpiece, the uniform adhesiveness of the coating on the surface of the workpiece is guaranteed in all directions, and the situation that spraying parts are frequently replaced due to specification problems is avoided.

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 belongs to the technical field of heat supply systems, and discloses a regional heat supply system optimization control method for multi-heat-source networking operation. The method comprises the steps that S1, physical entity data, hydraulic working condition data and temperature data in a regional heat supply pipe network are collected in real time, an adjacent matrix is constructed according to the actual connection relation of the physical entity data, and a digital network architecture is formed; s2, dividing the digital network architecture into a plurality of sub-architectures based on an improved GN algorithm, and establishing a state space model for each sub-architecture; and S3, constructing a rapid simulation model based on the state space model, and continuously fusing each physical entity data and a preset deviation range through a physical information neural network. According to the method, the thermal state change caused by hydraulic adjustment and the reaction of the thermal change on the hydraulic resistance characteristic can be captured in real time, meanwhile, all physical entity data and hydraulic working conditions are processed in a unified mode, and deviation caused by decoupling simplification in a traditional method is reduced.

The invention provides a combined heat and power system and a control method thereof, and relates to the technical field of combined heat and power. The system comprises a fuel gas heat and power cogeneration subsystem, a heat supply subsystem and a fused salt heat storage subsystem, the fuel gas heat and power cogeneration subsystem is used for fuel gas power supply, the fused salt heat storage subsystem can convert solar energy and / or flue gas generated by power supply into heat energy of high-temperature fused salt to be stored, and the heat supply subsystem conducts primary heating on heat supply return water through geothermal energy; and flue gas and / or high-temperature fused salt generated by power supply are / is used for conducting secondary heating on heat supply return water. Geothermal energy, solar energy and fused salt heat storage are coupled, and renewable energy sources are fully utilized for heat and power cogeneration, so that the power supply requirement and the heat supply requirement of a user are met. In the ground source heat pump unit, primary heating is conducted through geothermal energy, heat supply return water is heated into warm water, then the warm water is secondarily heated into hot water through smoke in the gas heat and power cogeneration system, the compression ratio of a compressor in a ground source heat pump can be reduced, and power consumption of the compressor is reduced.

The embodiment of the invention discloses a peak regulation method, device and equipment for a cogeneration unit and a storage medium, and relates to the technical field of electric power, and the method comprises the steps: determining the heat user demand heat of a preset region in a current unit time length based on the heat supply scene information of heat users in the preset region and a predicted outdoor temperature sequence of the preset region in the current unit time length, based on heat supply network heat supply steam information extracted from the combined heat and power generation unit by a heat supply network heat supply system in the preset area in the current unit time, heat source heat supply heat of the preset area in the current unit time is determined; the supply and demand deviation is determined according to the heat user demand heat and the heat source heat supply heat, and when the supply and demand deviation is larger than a set deviation threshold value, a heat storage adjusting valve is opened to start a heat storage mode of the heat supply network heat supply system, and when the heat user demand heat is larger than the heat source heat supply heat, heat stored by the heat supply network heat supply system in the heat storage mode is used for heat supply. And the peak regulation flexibility of the cogeneration unit is improved in a peak load shifting manner.

The embodiment of the invention provides a multi-steam-source cooperative frequency modulation combined heat and power generation system and a control method. The system comprises a boiler, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a power generator, a multi-stage regenerative heater, a heating system and a heating steam supply pipeline. A main steam outlet of the boiler is connected to the high-pressure cylinder through a main steam pipeline, a steam exhaust port of the high-pressure cylinder is connected to the intermediate-pressure cylinder through a pipeline, a steam exhaust port of the intermediate-pressure cylinder is connected to the low-pressure cylinder through a pipeline, and a steam exhaust port of the low-pressure cylinder is connected to the generator through a pipeline. A condensate water outlet of the medium-pressure cylinder is communicated to a condensate water inlet of the boiler through a first condensate water pipeline; the heating system is communicated with a steam exhaust port of the medium-pressure cylinder through a heating steam supply pipeline; the multi-stage regenerative heater is arranged on the first condensate water pipeline and connected with the high-pressure cylinder and / or the intermediate-pressure cylinder through steam extraction pipelines, and steam extraction adjusting valves are correspondingly arranged on the steam extraction pipeline between the high-pressure cylinder and the multi-stage regenerative heater and / or the steam extraction pipeline between the intermediate-pressure cylinder and the multi-stage regenerative heater.

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 system for producing CO and CO2 to achieve an efficient oil recovery operation that minimizes undesirable gaseous emissions is provided. The system includes a portable CO-producing device, a portable CO2-producing device located proximate to the reservoir, and a gas collecting device configured to receive CO and CO2 and selectively distribute a desired ratio of CO and CO2 dynamically based on current reservoir conditions. Producing CO2 proximate to the reservoir comprises reforming carbon-based fuel within oxygen. Electrical energy generated is used to selectively distribute the desired ratio of CO / CO2 to the reservoir with de minimis greenhouse gases produced transmitted into the atmosphere. The system is an energy-efficient arrangement that recycles and reuses by-products and unused products from the process. Greenhouse gas emissions are significantly reduced compared to conventional processes by-products are fully utilized. Hydrogen produced can be used to generate electricity, as can heat generated from other sources within the process.

MEANS FOR SOLVING THE PROBLEM: To provide an inlet duct system for a heat recovery steam generator.SOLUTION: A system (10) includes an exhaust diffuser system (22) for a heat recovery steam generator (HRSG) (16). The system (10) includes an inlet portion (23), a diffuser portion (24) axially extending from the inlet portion (23), and an outlet portion (26) fluidly coupled to an axial distal end of the diffuser portion (24), where an outlet extent (252) of the outlet portion (26) is greater than an inlet extent (254) of the inlet portion (23). The diffuser portion (24) includes multiple wall portions (272), and the multiple wall portions (272) are incrementally angled relative to an axial extent (258) extending from the inlet portion (23) to the outlet portion (26). The system (10) may further include a gas turbine engine (12) coupled to the inlet portion (23), and the HRSG (16) coupled to the outlet portion (26).SELECTED DRAWING: Figure 2

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.

A gas turbine combustion system includes a combustor that has at least two injection stages each configured to inject fuel into a combustion chamber of the combustor. A fuel supply circuit is in fluid communication with the at least two injection stages for providing the fuel from a fuel supply to the injection stages. The fuel supply circuit includes at least two branches, each branch being fluidly coupled to a respective injection stage. The gas turbine combustion system further includes at least two heat exchangers fluidly coupled to a thermal fluid supply. Each heat exchanger is disposed in thermal communication on a respective branch of the at least two branches for modifying a temperature of fuel within the respective branch.

A process for process for generating power in an ammonia-fueled gas turbine power plant includes flowing an ammonia feed stream to an ammonia cracker reactor in geographical proximity to an ammonia-fueled gas turbine power plant to crack ammonia feed stream under cracking conditions, thereby producing a product effluent comprising ammonia and hydrogen, flowing the product effluent comprising ammonia and hydrogen to an ammonia-fueled gas turbine of an ammonia-fueled gas turbine power plant, and combusting the product effluent comprising ammonia and hydrogen to drive the ammonia-fueled gas turbine. An exhaust gas stream generated from the ammonia-fueled gas turbine is recycled back to supply heat to the ammonia cracker reactor.

A method and an apparatus for treating comminuted waste material the method comprising: •a) providing a heating chamber (28) and one or more combustion heating means (40a-f) for heating the contents of the heating chamber (28), the heating chamber (28) having an inlet (21) and an outlet (22), •b) feeding comminuted waste material through the inlet (21) and into the heating chamber (28); •c) heating the comminuted waste material in the heating chamber (28), using the combustion heating means (40a-f), to generate a combustible gas; and •d) supplying at least a portion of the generated combustible gas to the one or more combustion heating means (40a-f) for heating the heating chamber (28).

A system includes a heat exchanger having a plurality of tubes arranged in a tube bundle having opposite first and second sides, opposite third and fourth sides extending from the first side to the second side, and opposite fifth and sixth sides extending from the first side to the second side, wherein the fifth and sixth sides extend between the third and fourth sides. The heat exchanger further includes a plurality of external flow lanes extending across the tube bundle and between the fifth and sixth sides outside of the plurality of tubes. Each tube of the plurality of tubes comprises a plurality of tubing portions extending in opposite first and second directions between the first and second sides in a sequence, and each successive tubing portion in the sequence switches lanes between the plurality of external flow lanes relative to a preceding tubing portion.

The invention discloses steam turbine high-low pressure bypass heat supply equipment, which relates to the technical field of heat energy engineering and power machinery, and comprises a signal acquisition module, an offset early warning module, a correction control module and a stable operation module, and constructing a time anchor point set, and generating a phase residual frequency spectrum for identifying a steam flow fluctuation source. According to the method, signals are collected through a unified time base line, a steam fluctuation source is identified in combination with a phase residual frequency spectrum, an impact track is reconstructed through phase conjugate inversion, and an overtemperature risk window is identified. Feedforward correction control is generated through track playback and predictive mapping, real-time rearrangement of valve behaviors is achieved, and the operation stability and the overtemperature resistance of the steam turbine under the deep peak regulation and disturbance conditions are improved.

The utility model provides a heat transfer strengthening structure, a heat transfer strengthening pipe and a preheating device. The heat transfer strengthening structure comprises a coal water slurry pipe and at least one protrusion distributed on the inner wall of the coal water slurry pipe. The ratio of the height of the protrusions to the inner diameter of the coal water slurry pipe is (1-8): 50. The heat transfer strengthening pipe comprises the heat transfer strengthening pipe structure. The preheating device comprises a shell and the heat transfer strengthening pipe located in the shell. According to the heat transfer strengthening structure, the protrusions are arranged on the inner wall of the coal water slurry pipe and serve as inner wall face modification, blocking during flowing of coal water slurry is prevented, and heat transfer strengthening is facilitated.

A method including: operating a pumped-heat energy storage (“PHES”) system in a generation mode to generate electricity; and responsive, at least in part, to a determination that a power generation plant will reduce supply of electricity to an electrical grid by a reduction amount of electricity, changing modes of the PHES system from the generation mode to operate in a charge mode. Operating in the charge mode can include receiving a charge amount of electricity, at least equal to the reduction amount of electricity, into the PHES system from the power generation plant and converting at least a portion of the charge amount of electricity to stored thermal energy.

An integrated gasification and power generation system includes a gasifier configured to receive biomass and generate syngas, wherein the gasifier is configured to operate at a pressure of approximately 100 bar to approximately 400 bar. The system further includes a recuperated Brayton thermodynamic power generation loop configured to receive the generated syngas and convert the generated syngas into a CO2 working fluid, wherein at least a portion of the CO2 working fluid from the power generation loop is reintroduced from the power generation loop to the gasifier.

The invention provides a method, device and equipment for controlling the steam drum water level of a gas-steam combined cycle unit. The method comprises the steps that the opening degree of an inlet guide vane of a gas compressor, the turbine exhaust temperature, the feed water flow, the steam flow, a steam drum water level set value and the steam drum water level are obtained in real time; according to the opening degree of an inlet guide vane of a gas compressor and the exhaust temperature of a turbine, the gas turbine side feed-forward control quantity is determined; according to the steam drum water level set value and the steam drum water level, a first PID controller is adopted to determine an original feed water flow set value; according to the feed water flow, the steam flow, the original feed water flow set value and the gas turbine side feed-forward control quantity, a second PID controller is adopted to determine a first feed water adjusting valve opening instruction; and adjusting the opening degree of the feed water adjusting valve according to the first feed water adjusting valve opening degree instruction, and controlling the steam drum water level of the gas-steam combined cycle unit. According to the invention, reliable guarantee is provided for safe and efficient operation of the unit through a cooperative regulation mechanism of the gas turbine side feed-forward control quantity and three-impulse control.

The present invention relates to a heat exchange substation (50) of an energy distribution system comprising: a heat exchanger (51) with thermal inertia comprising a primary side (37a) connected to a primary supply line (36) and to a primary return line (37) and a secondary side (37b), opposite the first primary side (37a), the secondary side (37b) being connected to a secondary supply line (56) and to a secondary return line (57) of a secondary heating circuit (68), the secondary supply and return lines (56, 57) being in communication with one or more heating units (18), wherein the heat exchanger (51) comprises a tank (67) within which a first shell- and-tube circuit (81) is arranged connected at the inlet to the primary supply line (36) and at the outlet to the primary return line (37) and a second shell-and-tube circuit (82) connected at the inlet to the secondary return line (57) and at the outlet to the secondary supply line (56), and the tank (67) contains a phase change material (71), the first shell-and-tube circuit (81) and the second shell-and- tube circuit (82) being in contact with the phase change material (71).

The present invention discloses a slag remover capable of automatically replenishing water, comprising a slag receiving portion, a water trough, a slag pushing assembly, and a water replenishing device. The slag pushing assembly comprises a slag pushing arm and a driving mechanism. The driving mechanism drives the slag pushing arm to push the garbage and waste slag from the rear trough section to the front trough section of the water trough. The slag pushing arm is in a first position in the front trough section of the water trough and in a second position in the rear trough section of the water trough. The water replenishing device comprises a water tank, a water replenishing pipe, and a solenoid valve. The solenoid valve is electrically coupled to the driving mechanism to receive a swing position signal of the slag pushing arm. When the slag pushing arm swings from the first position to the second position, the solenoid valve opens the water replenishing pipe to replenish water to the water trough. When the slag pushing arm swings from the second position to the first position, the solenoid valve closes the water replenishing pipe. In this way, the water replenishing device can replenish water to the water trough at a predetermined time, avoiding the problem of uncontrollable water level in the water trough. At the same time, the amount of water in the water trough does not increase during the slag pushing process, avoiding the problem of rising water level in the water trough, causing overflow or excessive water in the garbage and waste slag.

The present application relates to the technical field of cooling water system control, especially to a self-shutdown control method for a closed cycle cooling water system of a gas turbine combined cycle unit. The closed cycle cooling water system comprises multiple closed water pumps and multiple closed coolers. The present application realizes full automatic control of three closed water pumps, optimizes the standby logic of the closed water pumps, sets up a primary standby function and a secondary standby function, and integrates all the three closed water pumps into the shutdown control process. Through the closed cooler shutdown process and the closed water pump shutdown process, the most suitable closed cooler and closed water pump are automatically selected for shutdown, and the shutdown of the closed cycle water system is realized in an orderly and efficient manner according to the established rules. Without the need for human judgment and operation by the operation personnel, the full automatic shutdown of the closed cycle cooling water system is realized without disturbing the stable operation state of the unit, and the labor intensity of the operation personnel is reduced, and the safety and the automation level of the unit are improved.

The invention relates to a method for optimizing a district heating network (1) comprising outgoing supply pipes and incoming return pipes, wherein a heat carrying fluid is circulated to be utilized for residential and commercial heating requirements. For storing excess thermal energy available at the district heating network, the method involves the steps of implementing more than one ground-based borehole thermal energy storage (4) as distributed heat storages at different locations of or along the district heating network (1). Each heat storage (4) is adapted to receive thermal energy from various forms of heat sources, which heat sources may be found at different locations of or along the district heating network (1) such, that the heat sources and the heat storages forming nodes in the district heating network (1). Excess thermal energy available to one node of the district heating network (1) is used to charge a borehole thermal energy storage (4) at one or several nodes, and thermal energy available from the borehole thermal energy storages (4) is at disposal to be used to heat the heat carrying fluid circulated in the supply pipes of the district heating network.

A method of inputting thermal energy into a fluid medium in a high temperature material production process by at least one rotating device is provided, the rotating device comprising a casing with at least one inlet and at least one outlet, a rotor including at least one rotor blade row arranged around a rotor hub mounted on a rotor shaft, and a stator formed as a fixed vane assembly arranged at least upstream of the at least one rotor blade row, wherein an amount of thermal energy is imparted to a fluid medium flow guided along a flow path formed inside the casing between the inlet and the outlet by a series of energy transformations occurring as the fluid medium flow passes through the fixed vanes and the at least one rotor blade row, respectively. The method further comprises incorporating the at least one rotating device into a high temperature material production facility configured to perform high temperature material production, such as production of glass, glass wool, carbon fiber, carbon nanotubes, and clay-based materials, at a temperature essentially equal to or greater than about 500°C, and directing an amount of input energy into the at least one rotating device incorporated into a heat consuming process facility, the input energy comprising electrical energy. A rotating device and related uses are further provided.

The present application relates to a gas turbine control device for controlling a gas turbine including a combustor capable of co-combusting a first fuel with a second fuel having a lower amount of heat per unit volume. This device controls the gas turbine based on a control parameter obtained by correcting a reference value corresponding to mono-combustion of the first fuel using a correction value. The correction value is calculated such that, as the second fuel co-combustion ratio increases, the control parameter becomes smaller or larger than the reference value, and the amount of deviation from the reference value increases.

To provide a heat exchanger system.SOLUTION: In one aspect, the disclosed embodiments relate to a system. The system may include a turbine and a regenerative heat exchanger system. The regenerative heat exchanger system is configured to receive the exhaust gas from the turbine. The regenerative heat exchanger system may include a pre-cooling section for cooling the exhaust gas, a primary heating section for receiving the cooled exhaust gas, and a secondary heating section for receiving the cooled exhaust gas.SELECTED DRAWING: None

The application relates to a combined heat and power system, which comprises a boiler, a generator unit, a molten salt heat storage subsystem and a steam heat storage subsystem; the generator unit comprises a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder; the molten salt heat storage subsystem comprises a cold salt tank, a hot salt tank, a heat storage heat exchanger and a heat supply heat exchanger, the heat storage heat exchanger is provided with a first low-temperature medium flow channel and a first high-temperature medium flow channel, the heat supply heat exchanger is provided with a second low-temperature medium flow channel and a second high-temperature medium flow channel; the first high-temperature medium flow channel is connected with a steam extraction end of the medium-pressure cylinder; one end of the second low-temperature medium flow channel is connected with a water supply end, and the other end is connected with a heat user; the steam heat storage subsystem comprises a steam heat storage tank, an input end of the steam heat storage tank is connected with the steam extraction end of the medium-pressure cylinder, an output end is connected with a steam inlet end of the low-pressure cylinder, and the steam heat storage tank has the advantages of being able to meet different scheduling requirements and increasing the flexibility of scheduling.

The utility model discloses a power plant thermotechnical instrument convenient for ash removal, which comprises an instrument body, an air inlet and an air outlet are respectively arranged on two sides of the instrument body, a dustproof component capable of being rotatably opened is arranged in the air inlet, and a fixing component used for fixing the dustproof component is arranged on the upper surface of the instrument body and close to one side of the air inlet. According to the utility model, the instrument body, the dustproof assembly, the heat dissipation assembly, the fixing assembly and the cooling fins are arranged, the dustproof assembly is installed at the air inlet of the instrument body, the dustproof assembly comprises the frame plate and the first dustproof net located in the frame plate, the heat dissipation assembly comprises the annular plate and the side cover, and the frame plate is rotatably connected with the air inlet through the hinge; the top of the frame plate is clamped and fixed through the fixing assembly, when dust on the first dustproof net needs to be cleaned every time, the frame plate can be rotationally opened by removing extrusion and fixation of the fixing assembly on the frame plate, and therefore the first dustproof net in the middle of the frame plate can be conveniently cleaned.

To provide a fuel supply system for driving a gas turbine cogeneration system using off-gas generated in a process in which bio liquid fuel is generated from biomass as fuel, and a fuel supply method for the gas turbine cogeneration system.SOLUTION: A fuel supply system includes: a fuel gas supply line for supplying fuel gas to a combustor of a gas turbine; a first off-gas supply device for supplying first off-gas generated in a fuel refining plant to the combustor; a second off-gas supply device for supplying second off-gas that is generated in a bio liquid fuel generation plant and has a heating value per unit mass smaller than that of the fuel gas to the combustor; a gas mixing device for mixing the fuel gas supplied by the fuel gas supply line, the first off-gas supplied by the first off-gas supply device and the second off-gas supplied by the second off-gas supply device; and a mixed gas fuel supply line for supplying the mixed gas fuel generated in the gas mixing device to the combustor.SELECTED DRAWING: Figure 4

The present application relates to the technical field of energy utilization, and particularly to a combined heat and power generation system capable of efficiently and flexibly heating by means of dual-unit combined supply, comprising a high backpressure unit and a conventional unit, and further comprising a first-stage heating unit, a second-stage heating unit, a third-stage heating unit, and a fourth-stage heating unit. In the present application, four stages of different heating units are provided and are simultaneously communicated with a conventional backpressure unit and the high backpressure unit, and a low-pressure cylinder crossover pipe heating mode and a low-pressure cylinder zero-output heating mode are flexibly selected on the basis of the total steam consumption demand of the third-stage and fourth-stage heater in combination with the real-time electric load condition of the conventional backpressure unit, so that the heating load of the units can be adjusted more flexibly; and when an electric load is determined, the external heating loads of the conventional and high backpressure units can fluctuate between -50% and +50%, and a high thermal-electric decoupling capability is realized.