63results about "Forced-flow steam boiler" patented technology

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, there are thermal energy storage units that provide existing power plants with greater system efficiency, safety, and reduced fuel consumption.

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, the energy storage system provides higher-temperature heat to a conventional lower-temperature heat source to boost the temperature of a thermal power cycle working fluid to a turbine, thereby increasing efficiency of the power cycle.

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, the energy storage system provides higher-temperature heat to a conventional lower-temperature heat source to boost the temperature of a thermal power cycle working fluid to a turbine, thereby increasing efficiency of the power cycle.

A method of integrating steam systems of first and second chemical plants, which includes transferring steam from at least one lower pressure steam header of a first steam production and transport system in the first plant to at least one lower pressure steam header of a second steam production and transport system in the second plant, such that steam produced by the first steam production and transport system is transferred to the second steam production and transport system in the second plant, which can reduce the GHG emissions of the combined first and second plants.

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, the energy storage system provides higher-temperature heat to a steam cracking furnace system for converting a hydrocarbon feedstock into cracked gas, thereby increasing the efficiency of the temperature control.

The invention relates to the system for storing thermal energy from electrical energy for process steam generation, which comprises a tank (1) containing a volume of molten salts (2), an upper closure (21) of the tank (1) with openings (22) with flanged connections (5), and a plurality of functional elements (6) selected from at least one heat-dissipating element (7) and / or at least one steam generator (8) and which comprise a salt-circulating system for promoting heat transfer that includes a housing (30), a pumping element (12) designed to suction the molten salts (2) from inside the tank (1) and pump them to an inlet section (31) of the housing (30), and a set of partitions (33), arranged alternately inside the housing (30) perpendicular to the longitudinal direction of the housing (30).

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, the TES provides higher-temperature heat through non-combustible fluid to an alumina calcination system used to remove impurities or volatile substances and / or to incur thermal decomposition to a desired product.

A thermal energy storage system with fluid flow insulation, the system including heated thermal storage blocks positioned within a housing, and a method for operating the thermal energy storage system, including providing a flow of fluid into the housing, the fluid convectively extracting heat from a top region, a side region and a bottom region of the thermal energy storage system, to generate heated fluid that insulates the thermal storage blocks from the housing and a foundation of the thermal energy storage system.

The invention discloses a 660MW ultra-supercritical primary reheating semi-tower boiler, and relates to the technical field of boilers. The invention aims to solve the problems of energy conservation, emission reduction, cost reduction and efficiency improvement of the existing ultra-supercritical unit boiler. A water cooling wall is arranged on the outer side of a boiler body, a tail separation flue is arranged on the rear portion of the upper end of the boiler body, a flue gas adjusting baffle is arranged below the tail separation flue, and an economizer outlet flue, a denitration device outlet flue and a preheater outlet flue are sequentially connected to the rear portion of the flue gas adjusting baffle from front to back. A denitration device is arranged in the denitration device outlet flue, an air preheater is arranged in the preheater outlet flue, cold primary air is heated by the air preheater and then enters a primary air pipeline, a cold secondary air duct is connected to the air preheater, and an induced draft fan is connected to the cold secondary air duct. The air preheater heats cold secondary air and then the cold secondary air enters the secondary air bellow, the over fire air bellow and the combustor secondary air nozzle through the hot secondary air duct. The invention is used for the ultra-supercritical unit.

An energy storage system (TES) 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. In one application, thermal energy storage systems are used to improve efficiency and reduce carbon emissions associated with processing materials or other industrial applications.

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, the energy storage system provides higher-temperature heat to a steam cracking furnace system for converting a hydrocarbon feedstock into cracked gas, thereby increasing the efficiency of the temperature control.

A pump uses the steam hammer effect to pump water from a reservoir into a control volume. Steam is injected into a water conduit extending between a liquid water reservoir and the control volume forms a liquid steam interface. Steam within the conduit condenses on the interface creating a region of partial vacuum. Water accelerates into the region of partial vacuum and is vented into the control volume, flow being controlled by a valve.

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.

To provide a superheated steam generation device using a three-phase AC power supply that effectively uses radiation of heat from a superheated conductor tube to improve thermal efficiency and reduces the influence that the superheated conductor tube is cooled by water or steam introduced from an introduction port.SOLUTION: A pre-heating conductor tube 3 has a first pre-heating conductor tube 31 and a second pre-heating conductor tube 32 that are arranged concentrically around a closed magnetic circuit iron core 2. The conductor tubes 31, 32, 4 are arranged in the order of the second pre-heating conductor tube 32, a superheated conductor tube 4, and the first pre-heating conductor tube 31 from the inside in a radial direction, and are connected in series in the order of the first pre-heating conductor tube 31, the second pre-heating conductor tube 32, and the superheated conductor tube 4. The second pre-heating conductor tube 32 has a spiral short circuit part 32X short-circuited in an axial direction. A superheated steam generation device introduces water or steam from an introduction port P1 provided in the first pre-heating conductor tube 31, and derives superheated steam from a derivation port P2 provided in the superheated conductor tube 4 through the second pre-heating conductor tube 32.SELECTED DRAWING: Figure 1

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, the TES provides higher-temperature heat through non-combustible fluid to an alumina calcination system used to remove impurities or volatile substances and / or to incur thermal decomposition to a desired product.

The invention provides a compact once-through steam generator, belongs to the technical field of heat energy recycling equipment, and aims to solve the problem that an existing heat exchanger is prone to cracking in an intermittent heat supply scene. The compact once-through steam generator comprises an outer shell (1), a heat release working medium spiral coil (2) and a heat absorption working medium input pipe (3); the outer shell (1) comprises a shell wall (11) and an inner cavity (12), the heat release working medium spiral coil pipe (2) and the heat absorption working medium input pipe (3) are both located in the inner cavity (12), a nozzle (34) is arranged at the outlet end of the heat absorption working medium input pipe (3), and a heat absorption working medium ejected by the nozzle (34) can accelerate the flowing speed of the heat absorption working medium on the outer surface of the heat release working medium spiral coil pipe (2). The compact once-through steam generator comprises the heat release working medium spiral coil, can bear stress fatigue under high frequency and large temperature difference, and can ensure safe and reliable operation.

The present invention is directed to a system and method for rapidly heating high volumes of fluids in a flow through process.

A boiler including a pressure vessel defining a volume therein, an outlet in fluid communication with the volume, and an aperture open to the volume. A fuel is introduced into the volume and combusted to produce heat and a first gas therein. The aperture is configured to introduce steam into the volume. Both the first gas and the steam are exhausted through the outlet.

An energy storage system (TES) 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. In one application, thermal energy storage systems are used to improve efficiency and reduce carbon emissions associated with processing materials or other industrial applications.

To effectively use radiation of heat from a superheated conductor tube to improve thermal efficiency and reduce the influence that the superheated conductor tube is cooled by water or steam introduced from an introduction port.SOLUTION: A pre-heating conductor tube 3 has a first pre-heating conductor tube 31 and a second pre-heating conductor tube 32 that are arranged concentrically around a closed magnetic circuit iron core 2. The conductor tubes 31, 32, 4 are arranged in the order of the second pre-heating conductor tube 32, a superheated conductor tube 4, and the first pre-heating conductor tube 31 from the inside in a radial direction, and are connected in series in the order of the first pre-heating conductor tube 31, the second pre-heating conductor tube 32, and the superheated conductor tube 4. The second pre-heating conductor tube 32 has a spiral short circuit part 32X short-circuited in an axial direction. A superheated steam generation device introduces water or steam from an introduction port P1 provided in the first pre-heating conductor tube 31, and derives superheated steam from a derivation port P2 provided in the superheated conductor tube 4 through the second pre-heating conductor tube 32.SELECTED DRAWING: Figure 1

A control system for a forced circulation water pipe steam generator wherein the system comprises: a heat exchanger having an inlet and an outlet and arranged, in use, to be exposed to a heat source such that steam can be generated from water passing through the heat exchanger; a steam separator having a steam outlet and a water outlet, and an inlet connected to the outlet of the heat exchanger; a positive displacement pump connected to the water outlet of the steam separator and arranged to supply water and / or a water / steam emulsion to the inlet of the heat exchanger; a feed water injector connected between the outlet of the heat exchanger and the positive displacement pump; and the flow meter is connected between the water outlet of the steam separator and the inlet of the heat exchanger.

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° 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. In one application, the energy storage system provides higher-temperature heat to a solid oxide electrolysis system to maintain in an electrolysis operating temperature range during operation and nonoperation, thereby increasing the efficiency of the temperature control.

A boiler including a pressure vessel defining a volume therein, an outlet in fluid communication with the volume, and an aperture open to the volume. A fuel is introduced into the volume and combusted to produce heat and a first gas therein. The aperture is configured to introduce steam into the volume. Both the first gas and the steam are exhausted through the outlet.

A control system for a forced circulation water pipe steam generator, the control system including: a heat exchanger having an inlet and an outlet, the heat exchanger being positioned to be exposed to a heat source in use, the heat exchanger being capable of generating steam from water passing through the heat exchanger; a steam separator having a steam outlet, a water outlet, and an inlet connected to the outlet of the heat exchanger; a positive displacement pump connected to the water outlet of the steam separator and arranged to supply water and / or a mixture of water and steam to the inlet of the heat exchanger; a feedwater injector connected between the outlet of the heat exchanger and the positive displacement pump; and a flow meter connected between the water outlet of the steam separator and the inlet of the heat exchanger.

A vapor engine a top manifold having a top chamber and comprising one or more heaters arranged to heat the top chamber; a bottom manifold sealable to the top manifold, the bottom manifold comprising a one or more fluid receiving chambers and one or more heaters arranged to heat fluid present in the one or more fluid receiving chambers; a screen disposed between the top and bottom manifolds and having an opening arrangement such that as vapor flows from the bottom manifold through the screen a laminar flow of vapor is generated; at least one vapor-generating fluid pipe extending through the bottom manifold in fluid communication with at least a portion of the one or more fluid receiving chambers; the at least one fluid pipe comprising a plurality of apertures for releasing fluid into the one or more chambers; and a vapor outlet in fluid communication with the top manifold.

A steam generating device is disclosed. The steam generating device includes a container having an internal space; a space partition member including a first partition portion connected to a side wall of the container and having an opening formed in a central portion and a second partition portion extending downward from the opening, and configured to partition the internal space into a steam discharge space and a heating space; a preheating member arranged in the heating space of the container and configured to receive water from an external water supply device and preheat the water; a vaporization tube arranged in a coil shape surrounding the second partition portion in the heating space and having a first end portion connected to the preheating member and a second end portion in the steam discharge space; and a heating device configured to supply thermal energy to the heating space.

A pump uses the steam hammer effect to pump water from a reservoir into a control volume. Steam is injected into a water conduit extending between the liquid water reservoir and the control volume, forming a liquid-steam interface. Steam in the conduit condenses on the interface, creating a region of partial vacuum. Water accelerates into the region of partial vacuum and is discharged into the control volume, with the flow rate controlled by a valve.

A vapor engine a top manifold having a top chamber and comprising one or more heaters arranged to heat the top chamber; a bottom manifold sealable to the top manifold, the bottom manifold comprising a one or more fluid receiving chambers and one or more heaters arranged to heat fluid present in the one or more fluid receiving chambers; a screen disposed between the top and bottom manifolds and having an opening arrangement such that as vapor flows from the bottom manifold through the screen a laminar flow of vapor is generated; at least one vapor-generating fluid pipe extending through the bottom manifold in fluid communication with at least a portion of the one or more fluid receiving chambers; the at least one fluid pipe comprising a plurality of apertures for releasing fluid into the one or more chambers; and a vapor outlet in fluid communication with the top manifold.