741results about "Feed water supply" patented technology

The invention provides a power plant deep peak regulation and power generation optimization method and system based on steam extraction energy storage, and relates to the technical field of power grids, the method comprises the steps that high-temperature and high-pressure steam is generated through a steam turbine, the steam enters a steam extraction system, and the steam extraction system is used for extracting part of steam exhausted by the steam turbine when the load of the power grid is low; the extracted steam is conveyed into the energy storage device to be stored; based on historical power grid load data and real-time load prediction data, dynamic optimization adjustment of generated power is carried out by combining characteristics of a generator set of a power plant, and deep peak regulation operation of the generator set in a low-load operation state is realized by controlling a power generation dispatching control module of the power plant. The output power of each unit is adjusted through an optimization algorithm; when the load of the power grid is low, part of steam of the steam turbine is stored in the energy storage device through the steam extraction system, and when the load of the power grid is peak, the stored steam flows back to the steam turbine again to be reused.

The embodiment of the invention provides an energy storage peak regulation system and method coupling waste heat recovery and water body heat storage. The system comprises a thermal power generation subsystem, a circulating water waste heat utilization subsystem, a water body heat storage subsystem and a heating subsystem. By recycling waste heat of circulating water, the heat efficiency of the unit can be improved under the same combined heat and power generation capacity, the coal consumption rate is reduced, and energy-saving and carbon-reducing transformation is assisted to be achieved. After the water body heat storage technology is coupled, the system can participate in peak regulation and peak service all the year round, and flexible transformation is assisted to be achieved; the diversified heat supply modes of steam extraction heat supply, circulating water waste heat recovery heat supply and heat storage water body heat supply assist in achieving heat supply transformation. The circulating water waste heat utilization technology and the water heat storage technology are deeply coupled with an existing combined heat and power generation unit, and energy-saving and carbon-reducing transformation, flexible transformation and heat supply transformation of the combined heat and power generation unit can be achieved at the same time.

The invention discloses a fused salt heat storage and Carnot cell combined coal-fired unit peak-load regulation operation method, device and equipment, a medium and a product, and relates to the field of unit peak-load regulation operation. Acquiring information data; based on a power regulation demand prediction model, performing peak regulation demand prediction according to the information data to obtain a prediction result; the power regulation demand prediction model is obtained by adopting a multi-objective optimization model and performing time sequence analysis on a long-short-term memory network model; determining an energy scheduling strategy based on the prediction result; the energy scheduling strategy comprises a heat storage power coordination instruction and a heat release power coordination instruction; and according to the energy scheduling strategy, operation adjustment is conducted on the coal-fired unit, the fused salt heat storage subsystem and the Carnot battery subsystem based on the control system. The invention aims to improve the peak regulation performance of the coal-fired unit.

The invention belongs to the technical field of coal-fired power generation, and particularly relates to a Carnot battery system based on a coal-fired power generation unit and an operation method of the Carnot battery system. The Carnot cell system comprises a heat pump system taking supercritical carbon dioxide as a working medium, a heat storage system and a coal-fired power generation system; the heat pump system comprises a first compressor, a second compressor, a first heat regenerator, a second heat regenerator, a third heat regenerator, a first turbine and a second turbine; the heat storage system comprises a hot tank and a cold tank; the coal-fired power generation system comprises a coal-fired boiler, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a power generator, a condenser, an eighth low-pressure heater, a seventh low-pressure heater, a sixth low-pressure heater, a fifth low-pressure heater, a deaerator, a first high-pressure heater, a second high-pressure heater and a third high-pressure heater. The split-flow compression process and the split-flow expansion process are matched with the multi-stage heat regenerator and the multi-stage fused salt heater, the energy efficiency coefficient of the Carnot battery in the electricity-to-heat conversion process is improved, and therefore the round-trip efficiency of the Carnot battery is improved.

The invention belongs to the technical field of thermal power generation, and relates to a thermal power plant steam turbine dead steam heat exchange device which comprises a boiler, and a dead steam treatment mechanism is mounted on one side of the boiler. The boiler generates high-temperature and high-pressure steam to drive the steam turbine to rotate, heat energy is converted into mechanical energy, the mechanical energy is transmitted to the generator through a coupler, a generator rotor rotates in a magnetic field, electric energy is generated through electromagnetic induction, dead steam generated by the steam turbine is distributed to the heat exchange assembly through a gas conveying pipe, and heat energy is recycled through primary and deep heat exchange and then cooled. And during the period, the water pump is used for assisting water drainage, the smooth proceeding of the water drainage process is ensured, and the condensed water can enter the boiler again to be recycled after being treated, or other treatments are carried out according to actual needs.

The invention belongs to the technical field of coking high-temperature condensed water recycling, and discloses a high-temperature condensed water recycling device which comprises an expansion tank with a condensed water ingress pipe welded to the inner wall of one side of the bottom, and a first liquid discharge pipe welded to the bottom of the inner wall of one side of the expansion tank. A negative pressure exhaust pipe is welded to the position, over the first liquid drainage pipe, of the expansion tank, a blow-off pipe is welded to the axis of the bottom of the expansion tank, and a blow-off assembly is arranged on the inner wall of the bottom of the expansion tank. The flowing low-temperature gaseous working medium and the high-temperature condensed water are used for heat exchange treatment, the temperature of the high-temperature condensed water can be effectively reduced, the cooled high-temperature condensed water is sent to downstream users to achieve heat recycling, and the heated gaseous working medium can drive the generator to rotate to achieve power generation treatment; and in addition, the high-temperature liquid working medium recycled in the middle process can be used for heat exchange, so that the heat of the high-temperature condensed water can be fully recycled.

The invention relates to the technical field of flue gas waste heat recovery, and discloses an online regulation and control system and method for regulating the flue gas waste heat recovery amount of a wide-channel plate type low-temperature economizer. The system comprises a flue gas treatment main process assembly, a low-temperature economizer water circulation assembly and an intelligent regulation and control assembly. Sensors are arranged at all key parts, an intelligent control unit is used for regulating and controlling a circulating water pump, a valve and other assemblies on the basis of a control model and real-time data, and the flue gas waste heat recovery amount is precisely regulated and controlled. Meanwhile, the system has the functions of data storage and analysis, fault diagnosis and interaction with external meteorological equipment, can optimize a control strategy, guarantees the system stability, and improves the adaptability. According to the system and method, the energy utilization efficiency is effectively improved, it is ensured that the system stably operates under complex working conditions, and the system and method have wide application prospects in the fields of thermal power generation and the like.

The utility model relates to the technical field of steam turbines, and discloses a thermodynamic system of a coupling back pressure turbine for wide-load peak regulation, which is provided with a boiler, a back pressure turbine, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a generator and a recovery mechanism, the boiler is respectively connected with the back pressure machine, the high-pressure cylinder and the intermediate-pressure cylinder; the back pressure machine is connected with the high-pressure cylinder; the medium-pressure cylinder is connected with the low-pressure cylinder; the low-pressure cylinder is connected with the generator; the recycling mechanism is connected with the low-pressure cylinder and the boiler and used for condensing steam discharged by the low-pressure cylinder and recycling and conveying the steam to the boiler. In a high-load operation state, the thermodynamic system, the back pressure turbine and the high-pressure cylinder operate in parallel, and the boiler conveys steam to the back pressure turbine and the high-pressure cylinder. In the thermodynamic system in a low-load operation state, the back pressure machine and the high-pressure cylinder are connected in series for operation, the boiler conveys steam to the back pressure machine, and the back pressure machine conveys steam to the high-pressure cylinder. According to the utility model, the pressure of steam entering the steam turbine during low-load operation can be improved, and the feed water temperature and the operation economy can be improved.

The utility model discloses a feed pump core cladding protection system which comprises a circulating fluidized bed boiler, an outlet of the circulating fluidized bed boiler is communicated with an inlet of a steam turbine, an outlet of the steam turbine is communicated with an inlet of a condensate pump, and an outlet of the condensate pump is respectively communicated with an inlet of a slag cooler and an inlet of a booster pump. An outlet of the slag cooler is communicated with an inlet of the water feeding pump through a low-pressure heater and a deaerator in sequence; the booster pump outlet is communicated with the feed pump inlet; the outlet of the high-pressure heater is communicated with the inlet of the circulating fluidized bed boiler. According to the system, a bypass is additionally arranged beside a pipeline, leading to sealing water of a feed pump, of a condensate pump, a booster pump is additionally arranged on the bypass, and the pressure of condensate entering the feed pump seal is adjusted. The lowest pressure of the outlet of the condensate pump is set, once the pressure is smaller than the minimum pressure required by a sealing system, the booster pump is started immediately, stable condensate pressure is guaranteed, a water pump core bag is prevented from being damaged, and safe operation of a unit is guaranteed.

Provided in the present invention are an adjustment system of a water supply thermal storage type thermoelectric generating set, and a design method and operation method therefor. The adjustment system comprises a high-pressure regenerative system, which is provided with a water supply outlet and a water drain outlet, wherein the water supply outlet is connected to a boiler by means of a water supply pipe; and a working medium heat storage system, which is connected to the water supply outlet or the water drain outlet by means of a water intake pipe, and is connected to the water supply pipe by means of a water output pipe. High-temperature supplied water or high-temperature drained water outputted from the high-pressure regenerative system is subjected to heat storage by means of the working medium heat storage system, and the working medium heat storage system can be decoupled or adjustably coupled between the high-pressure regenerative system and the boiler. When a load needs to be rapidly adjusted, the high-pressure regenerative system is decoupled from the boiler, the working medium heat storage system is used to supply water to the boiler so as to increase the feedwater flow and thermal load, and the feedwater flow of the working medium heat storage system is adjusted in combination with the maximum load lifting rate and the maximum load rate adjusting range of the thermoelectric generating set.

The invention discloses a circulating fluidized bed boiler water supply optimization method and system, and belongs to the technical field of boiler energy conservation. The system mainly comprises a condensate water tank, a demineralized water tank, a slag cooler, a deoxygenization water tank, a condensate water pump, a demineralized water pump, a plate heat exchanger, a reverse osmosis membrane group, a demineralized water buffer tank and the like. The principle of'condensate water priority 'is adopted, the supply amount of condensate water is preferentially adjusted according to the liquid level of the deoxygenated water tank through the intelligent control unit, and the insufficient part is supplemented by demineralized water; the demineralized water subjected to heat exchange by the slag cooler is intelligently distributed to a demineralized water tank, a condensation water tank or a deoxygenization water tank according to the water outlet temperature; the plate heat exchanger can preheat reverse osmosis inlet water by adopting a desalting water mode or a steam mode; the demineralized water buffer tank effectively inhibits water impact. Dynamic balance and heat energy gradient utilization of steam condensate water and demineralized water are achieved, the problems of water tank overflow and energy waste are effectively solved, and the economical efficiency and stability of boiler operation are remarkably improved.

The invention discloses a double-turbine power generation device suitable for a thermal power generating unit, relates to the technical field of thermal power generation, and mainly aims to improve the power generation efficiency of the thermal power generating unit. According to the main technical scheme, a boiler system is connected with steam inlet valves of a first steam turbine power generation sub-set and a second steam turbine power generation sub-set through pipelines, and corresponding steam is conveyed to the two sub-sets by adjusting the opening degree of a valve to be matched with a load distribution target. After the two subsets do work, part of steam is fed into a steam extraction heat regeneration system to recover heat and is used for heating boiler feed water; and the residual exhaust steam enters the condenser system to be condensed into water, and the condensed water is conveyed to the steam extraction heat regeneration system to be heated to become boiler feed water, so that circulating power generation is realized.

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 biomass power plant dead steam and flue gas waste heat integrated recovery heat supply device which comprises the following components: a biomass boiler used for combusting biomass fuel and generating high-temperature steam, and a flue gas outlet of the biomass boiler is connected to a flue gas emission reduction and waste heat recovery integrated unit; a steam inlet of the steam turbine is connected with a high-temperature steam outlet of the biomass boiler, and a steam outlet of the steam turbine is connected to a high-temperature side inlet of the steam exhaust heat exchanger and a high-temperature side inlet of the condenser through valves; the steam exhaust heat exchanger is connected with the condenser. When the device is implemented, waste steam latent heat and flue gas sensible heat / latent heat are recovered in a stepped manner, so that the comprehensive heat efficiency is remarkably improved; seasonal mode switching is achieved through an arranged intelligent control system, namely flue gas waste heat is recycled preferentially in summer, and steam exhaust heat supply is combined in winter; fuel cost is counteracted through waste heat sales income, and the income during implementation of the device is increased.

The invention relates to the technical field of high-efficiency recovery of low-temperature exhaust gas, in particular to a high-temperature cooking waste heat recovery system for white spirit brewing. The white spirit brewing high-temperature cooking waste heat recovery system comprises a cooking barrel, a compressor, an embedded plate heat exchanger, a condensate water tank and a circulating pump, a liquid inlet of the cooking barrel is communicated with one end of a water supplementing pipe, an air inlet of the compressor is communicated with a waste gas outlet of the cooking barrel, and the compressor is used for compressing steam to obtain high-temperature and high-pressure steam. A steam inlet of the embedded plate heat exchanger is communicated with an air outlet of the compressor, and a steam outlet of the embedded plate heat exchanger is communicated with a steam inlet of the cooking barrel through a steam conveying pipe. By adopting the arrangement mode, waste heat steam is utilized twice to recover heat, high-efficiency energy utilization can be realized, energy consumption and carbon emission are reduced, and meanwhile, the cooking efficiency and the grain quality are improved.

The boiler softened water tank comprises a softened water tank body and a support, the bottom of the softened water tank body is fixedly connected with the support, the left side of the softened water tank body is fixedly connected with a liquid level sight glass, the surface of an emptying pipe is fixedly connected with an emptying valve, the bottom of the right side of the softened water tank body is communicated with a boiler pipe, and the bottom of the boiler pipe is communicated with a vacuum suppressor. The utility model relates to the technical field of boiler softened water tanks, a small liquid level control tank is installed outside the tank, a vacuum suppressor is installed at the top of the liquid level control tank and used for exhausting air when water enters, a floating ball valve is installed in the tank and connected with the softened water tank through a U-shaped bend, and the soft water tank is connected with the vacuum suppressor. The normal temperature is kept, the service life of the sealing piece is prolonged, the sealing piece can be maintained in time without shutdown when damaged and is not influenced by use and hot water in the tank, and the problem that the sealing piece of the floating ball valve is used at high temperature for a long time and is easy to age to cause water leakage is solved.

The invention provides a black water waste heat recovery method and application, and belongs to the technical field of chemical engineering, the method is as follows: a black water pipeline from a gasification furnace is sequentially flashed through a high-pressure flash tank, a low-pressure flash tank and a vacuum flash tank and finally reaches a precipitation tank; a process pipeline is additionally arranged on the upstream of a black water pipeline adjusting valve at the bottom of a high-pressure flash tank, the process pipeline is connected to a shell pass of a high-pressure carbon dioxide heat exchanger in parallel and exchanges heat with a tube pass of the high-pressure carbon dioxide heat exchanger, the temperature is increased after heat exchange, and the process pipeline is sent to all users for use; after black water discharged from the high-pressure flash tank is subjected to heat exchange through the high-pressure CO2 heat exchanger, the temperature is reduced, the flow to the low-pressure flash tank is controlled by adjusting a downstream black water flow adjusting valve, the thermal load of the low-pressure flash tank is indirectly reduced, the flow to the vacuum flash tank is controlled by the low-pressure flash tank through a downstream black water adjusting valve, and the thermal load of the vacuum flash tank is reduced. And the vacuum pump of the vacuum flash is reduced or stopped according to the vacuum flash pressure condition, so that energy is saved. High-flash black water waste heat replaces low-pressure steam, and the true flash load is indirectly reduced.

The invention provides an ultra-supercritical boiler full-working-condition composite dry-wet state conversion system and method, and belongs to the technical field of coal power unit flexible transformation. The method comprises the steps that in the initial stage of starting of a coal power unit, a coal-fired boiler is in a wet state, and the coal-fired boiler is in a wet state; the wet water separated by the separator is recycled based on a boiler water recycling module and a drainage capacity expansion module; when the operation load of the coal-fired boiler ranges from the first preset load to the second preset load, the water level of a water storage tank of the boiler is controlled based on the boiler water recycling module, and a pipeline of the drainage expansion module is heated through wet water; when the second preset load reaches the third preset load, the boiler water recirculation module is closed, the drain capacity expansion module and the heat exchange deoxidization module are started, and the water level of the water storage tank is finely adjusted; and when the load is larger than the third preset load, the coal-fired boiler is switched into dry-state operation, and the drainage capacity expansion module and the heat exchange deoxidization module are closed. The working medium and heat of circulating water in the coal-fired boiler starting stage and the deep peak load regulation load can be recycled.

The invention provides a heat pump coupling fused salt energy storage system and method suitable for peak regulation of a thermal power generating unit, a thermal power generating unit comprises a boiler and a multi-stage steam turbine assembly, the output end of the boiler is communicated with the multi-stage steam turbine assembly, and a heat storage subsystem comprises a high / low-temperature fused salt storage tank and a first / second heat exchanger assembly. The output end of the boiler further communicates with a steam-water channel inlet of the second heat exchanger assembly, an outlet of the multi-stage steam turbine assembly communicates with a water supply pipeline, and the water supply pipeline communicates with the input end of the boiler and a steam-water channel inlet of the first heat exchanger assembly. In the heat storage period, part of high-temperature steam output by the boiler is conveyed to the multi-stage steam turbine assembly, and the remaining high-temperature steam is distributed to the second heat exchanger assembly to be used for heating the low-temperature fused salt. In the heat release period, steam output by the multi-stage steam turbine assembly is condensed to form feed water, the feed water is transmitted to the first heat exchanger assembly, high-temperature steam is formed and flows back to the multi-stage steam turbine assembly, and the multi-stage steam turbine assembly is driven to do work to generate power.

The invention discloses a thermal power generating unit peak regulation system coupled with fused salt heat storage, which comprises a thermal power generating unit and a fused salt heat storage and release system, the fused salt heat storage and release system comprises a low-temperature fused salt tank, a low-temperature fused salt pump, a high-temperature fused salt tank, a high-temperature fused salt pump, a first heat storage section heat exchanger, a second heat storage section heat exchanger, a heat storage pipeline, a heat release section heat exchanger and a heat release pipeline, the heat storage pipeline and the heat release pipeline are both connected between the low-temperature molten salt tank and the high-temperature molten salt tank, the first heat storage section heat exchanger, the second heat storage section heat exchanger and the low-temperature molten salt pump are all arranged on the heat storage pipeline, and the heat release section heat exchanger and the high-temperature molten salt pump are both arranged on the heat release pipeline. A steam inlet of the first heat storage section heat exchanger is connected with an outlet of a main steam section of the thermal power generating unit, a steam inlet of the second heat storage section heat exchanger is connected with an outlet of a primary reheating section of the thermal power generating unit, and the heat release section heat exchanger is connected with the thermal power generating unit. According to the thermal power generating unit peak regulation system, the peak regulation capacity and the operation efficiency of the system can be improved.

The invention belongs to the field of coal-fired power generation, and particularly relates to a heat supply and power generation system for improving the flexibility of a thermoelectric load by coupling molten salt heat storage and an operation method, the system is additionally provided with a heat supply network heating system on the basis of a conventional coal-fired power generation system, and is coupled with an innovative heat storage system adopting a collaborative heat storage and collaborative heat release structure. When the power supply load of the coupling heat supply power generation system is reduced, reheated steam and redundant electric power which is not connected to the network are used for heating molten salt for collaborative heat storage, meanwhile, reheated cold section extraction steam is used for supplying heat to a heat supply network, the load reduction rate is increased, the downward peak regulation depth of the coupling heat supply power generation system can be effectively reduced, and the power supply efficiency is improved. And zero power output of the power generation system can be realized under the condition that the boiler maintains the lowest operation load. The thermoelectric load characteristic interval range of the coupling heat supply power generation system is remarkably expanded, the variable load rate of the coupling heat supply power generation system is improved, and the heat supply and power supply flexibility of the coupling heat supply power generation system is improved.

The invention discloses a novel gasification furnace black water high-grade heat energy recovery process containing liquid-solid separation and scale inhibition treatment. Aiming at the defects of heat energy grade reduction, equipment abrasion and low-temperature heat discharge caused by a traditional flash evaporation process, black water is pretreated through a liquid-solid separator (S-1800) and a scale inhibitor (T-1800), a multi-stage countercurrent heat exchange technology is combined, a flash evaporation step is omitted, and high-grade heat energy of the black water is used for heating process water and process condensate. The temperature of process condensate is increased to 190 DEG C or above from about 170 DEG C in the traditional process, the temperature of process water (grey water) is increased to 190 DEG C or above from about 140 DEG C in the traditional process, the temperature of coal gas discharged from a washing tower is increased to about 206 DEG C from about 192 DEG C, the water-gas molar ratio in the coal gas is increased to about 0.94 from about 0.58, and the amount of water vapor in saturated coal gas discharged from the tower is increased by 63% or above. According to the process, high-pressure steam does not need to be supplemented in a conversion working section, for example, a synthetic ammonia device with annual output of 180000 tons, 4.2 MPaA and 400 DEG C high-pressure superheated steam is saved and increased by 20.870 thousand tons per year, the energy-saving benefit reaches 31300000 yuan per year, and the energy-saving benefit is in direct proportion to the production scale of the device.

The utility model discloses a flue gas waste heat utilization system of a desulfurizing tower, which comprises an induced draft fan and the desulfurizing tower which are sequentially connected with a boiler discharge flue, a flue gas outlet of the desulfurizing tower is connected with a chimney through a pipeline, and a flue gas heat exchanger is arranged on the pipeline between the induced draft fan and the desulfurizing tower; an oxidation air inlet pipe is arranged on the desulfurizing tower, a high-temperature oxidation air pipe is arranged on an output port of the oxidation fan, an outlet of the high-temperature oxidation air pipe is connected with an air heat exchanger, an oxidation air outlet of the air heat exchanger is connected with the pipe end of the oxidation air inlet pipe, and a low-temperature condensed water inlet pipe and a medium-temperature condensed water outlet pipe are arranged on the air heat exchanger. The medium-temperature condensed water outlet pipe is connected with a heat exchange pipe inlet of the flue gas heat exchanger, and a high-temperature condensed water output pipe is arranged at a heat exchange pipe outlet of the flue gas heat exchanger.

The invention discloses an integrated hydraulic turbine furnace water circulating pump and a starting and stopping method. The furnace water circulating pump is sequentially divided into a hydraulic turbine unit, a first water chamber unit, a furnace water pump unit, a second water chamber unit and an axial force balancing unit according to functions. By designing a unique main and auxiliary channel water inlet structure, the problem of water sealing of a high-temperature and high-pressure furnace in a conventional shaft seal pump is solved, the working environment of each sealing element is greatly improved, the service life is prolonged, and meanwhile, the inner core can be integrally pulled out for replacement and is convenient to overhaul. On the basis, a step-by-step pre-heating and rapid shutdown method is further designed, the reliability under frequent start and shutdown is improved, the service life is prolonged, the start and shutdown process is further deeply fused into the deep peak regulation process of the supercritical boiler, the feed water flow of the supercritical boiler can be rapidly recovered after a hydraulic turbine boiler water circulating pump exits due to an accident, and the service life of the supercritical boiler is prolonged. And the fault of water cut-off and shutdown is avoided. Meanwhile, the recycling function of a steam feed pump set can be replaced, and the reliability of a water supply system is improved.

The invention discloses a stepped low-temperature steam multi-layer cyclic utilization process and system, and relates to the technical field of steam utilization, steam generated by boiler heat passes through a pipeline I, when a temperature value detected by a thermometer II is greater than a set value, the steam enters a steam generator through the pipeline I and a flow valve I, and the steam generator generates power. When the temperature measured by a second thermometer is lower than a set value, water vapor enters a heat exchange chamber in a first heat storage box through a first pipeline, a fifth flow valve, a sixth pipeline and a first quick insertion pipe, and heat is transferred to the first heat storage box, the second heat storage box and a third heat storage box to be stored in sequence; therefore, high-temperature steam can be reasonably heated and then fed into the steam generator again for power generation, heat of low-temperature steam is stored, the utilization efficiency of the heat of the steam is improved, a mixture of water and alcohol is arranged in the shell to absorb the heat of the steam in the heat exchange chamber, then evaporation heat transfer is conducted, and the heat exchange efficiency is improved.

The present disclosure relates to and envisages a condensate recovery skid system comprising a receiver with a common condensate inlet (105) and outlet (110) for handling high loads of condensate at elevated temperatures from process equipment. The system further comprises a plurality of steam-operated condensate pumps that fluidly connect with the receiver to receive, pump, and discharge the condensate. A motive steam inlet header (135) supplies steam to power the pumps. Additionally, a set of redundant pumps ensures uninterrupted operation by activating in case of any pump malfunction. All components — the receiver, condensate pumps, motive steam inlet header, and redundant pumps — are configured within a skid, enhancing installation flexibility in various industrial settings.

The utility model relates to the technical field of heat recovery, and discloses a dead steam recovery device which comprises a bottom plate, one side of the top end of the bottom plate is fixedly connected with a deaerator through a vertical plate, the other side of the top end of the bottom plate is provided with a collecting mechanism, the collecting mechanism is provided with a heat exchange mechanism, and the heat exchange mechanism is provided with a rotating mechanism. The heat exchange mechanism comprises a heat exchange box, a water inlet pipe and a water outlet pipe are symmetrically and fixedly connected to the outer wall of the heat exchange box, a heat exchange pipe is rotationally connected to the heat exchange box and is spirally arranged, and the two ends of the heat exchange pipe are fixedly connected with a first connecting box and a second connecting box respectively; through all structures in the heat exchange mechanism, the effects that steam is fully cooled and condensed into water, and the cooling efficiency is improved are achieved, and the problems that a cooling path in a traditional dead steam recovery device is short, so that the steam cannot be fully cooled, and the cooling efficiency is low are solved.

The application provides a steam condensate waste heat recycling device, and relates to the field of heat energy recovery.The steam condensate waste heat recycling device comprises a base, a heat preservation cylinder arranged on the base, and a synchronous adjusting mechanism arranged on the heat preservation cylinder.The steam condensate waste heat recycling device can conveniently collect condensate water into a required device, and the high-temperature condensate water can not lose a large amount of heat through a pipeline and a surface of equipment during a transmission process, so that heat energy is not wasted.The synchronous adjusting mechanism drives a conveying pump to quickly transfer the condensate water in the heat preservation cylinder to a required place, so that the condensate water recovery efficiency is improved.The synchronous adjusting mechanism solves the problem of waste of condensate water waste heat in the prior art.The synchronous adjusting mechanism solves the problem of equipment damage caused by heat shock in the prior art.The synchronous adjusting mechanism solves the problem of increased thermal resistance caused by scale accumulation in the prior art.

The invention discloses a rapid peak and frequency regulation system and method for a coal-fired unit with a regenerative system coupled with high-temperature working medium for heat storage, and relates to the technical field of conventional heating power and electricity technologies and energy storage, and the rapid peak and frequency regulation system comprises a coal-fired unit thermodynamic cycle system and a high-temperature working medium heat storage system, the high-temperature working medium heat storage system is deeply coupled with a thermodynamic cycle heat regeneration system of the coal-fired unit, and rapid combined peak regulation and frequency modulation of the unit are achieved by reducing the steam extraction amount of each stage of a steam turbine and cooperating with energy supply of the high-temperature working medium heat storage system. Firstly, when the unit needs to rapidly increase the load, rapid increase of the power generation output of the unit is achieved by reducing the steam extraction amount of each stage of a steam turbine, and meanwhile, high-temperature and high-pressure saturated water stored in a high-temperature working medium heat storage tank generates a certain amount of saturated steam through pressure reduction to replace steam extraction of each stage of the steam turbine to heat boiler feed water in a regenerative system; therefore, the water supply temperature of the boiler is kept unchanged or increased, and the variable load response capability of the coal-fired unit is quickly improved.

The invention discloses a steam pipeline condensate water recovery method and system.The steam pipeline condensate water recovery system is communicated with a drainage pipe on a steam pipeline and comprises a leading-in mechanism, a collecting mechanism, a heating mechanism and a steam exhaust mechanism, and the leading-in mechanism is used for leading in condensate water in the drainage pipe; the collecting mechanism is used for collecting the condensate water introduced by the introducing mechanism; the heating mechanism is used for heating the condensed water collected by the collecting mechanism into steam; and the steam exhaust mechanism is used for returning steam heated by the heating mechanism to the steam pipeline. The operation cost basically abuts against the saved steam cost, and the cost is extremely low; and the influence of the discharge of the condensed water on the safety and environmental protection of a production site is solved, and the device has a great practical value in actual production activities.