75results about "Sorption machines" patented technology

The utility model relates to a gas turbine intake air treatment technical field, concretely relates to a gas turbine intake air cold and hot double -effect integrated heat exchange device, the utility model discloses according to the special requirement of gas turbine to intake air, also can install the intake air cooling heat exchanger before the intake air filter element, heating and cooling share a finned tube heat exchanger, indispensable temperature control system is designed, and the reasonable control of intake air temperature / humidity is realized, in most areas, not only can effectively heat the intake air of gas turbine, prevent the wet block and ice block of filter element, but also can make the intake air temperature of gas turbine reduce 3~10 DEG C in high temperature season, improve the output of gas turbine 3~10%, reduce the fuel consumption of gas turbine 1.2~4%, reduce NO X Emission 30% or more, the engineering cost and energy consumption are lower.

The present application relates to nuclear power technology field, provide a kind of steam seal air extraction system, comprising: steam turbine unit, refrigeration subsystem and absorber, steam turbine unit has steam seal cavity in two ends;Absorber is connected with refrigeration subsystem to form circulation loop, absorber is connected with air extraction pipe and exhaust pipe, air extraction pipe is used to suck air and water vapor in steam seal cavity into absorber, lithium bromide solution is provided in absorber, and lithium bromide solution is used to absorb water vapor.The steam seal air extraction system described above can suck air and water vapor leaked in steam seal cavity of steam turbine unit into absorber, and water vapor is absorbed by absorber, realizes refrigeration and air extraction simultaneously, meets the air extraction demand of steam turbine unit, also takes into account refrigeration demand, eliminates the problem of system complex, numerous equipment, high auxiliary energy consumption and large volume, weight caused by air extractor and refrigeration unit independent operation, realizes the simplification of power conversion device overall composition and operation efficiency improvement.

This invention discloses a rapid response system and method for coal-fired power plants based on thermochemical energy storage, applicable to the field of grid energy storage, including coal-fired power generation, carbon capture, energy storage, and power generation units. The coal-fired power generation unit includes a boiler, turbine, generator, and regenerative system; the carbon capture unit includes an absorption tower, separation tower, and reboiler; the energy storage unit includes a dry air pump, an air heater, and a thermochemical energy storage reactor. Steam extraction from the intermediate-pressure cylinder is connected to the air heater, and steam extraction from the low-pressure cylinder is connected to the reactor inlet. The reactor outlet steam is supplied to the reboiler and the organic Rankine cycle power generation unit. Waste heat recovery from the carbon capture unit cooler is used for preheating the organic working fluid, achieving cascaded energy utilization and rapid peak shaving. This invention constructs a two-way "energy storage-energy release" operation mechanism through the thermochemical energy storage unit, solving the problems of reduced output and slow response during peak shaving in carbon capture power plants, enabling more steam to be used for power generation, broadening the peak shaving range, and improving the response rate.

The present application belongs to the technical field of energy saving and resource utilization in titanium dioxide production, and particularly relates to a method and system for heat energy utilization of a titanium dioxide gas-powder system. The method is aimed at the problems of waste of high-temperature tail gas heat energy of the gas-powder system and high energy consumption for cold preparation in the front production process, and adopts a two-stage cooling and heat energy recovery mode of "lithium bromide refrigerating unit + cooling device". The specific steps are as follows: introducing the clean high-temperature tail gas at 220-240 DEG C after dust removal into the lithium bromide refrigerating unit, driving the preparation of cold water or ice water by using the heat energy thereof, and directly supplying the front titanium liquid freezing crystallization process; then, the tail gas enters the secondary cooling device for deep cooling to below 70 DEG C for standard emission, while the circulating water is heated to hot water at 45-55 DEG C for reuse in the water washing process. The present application realizes "waste heat" preparation of "cold" and recovery of low-level heat energy through heat energy cascade utilization, the system heat recovery rate is greater than or equal to 92%, the power consumption of the lithium bromide unit is only 1 / 10 or less of the traditional refrigeration mode, and the production cost is significantly reduced.

The utility model relates to the technical field of steam waste heat recovery, specifically is a kind of industrial steam condensate waste heat cascade utilization system. Including: high-pressure condensate collection tank, the upper end of high-pressure condensate collection tank is connected to pipe network;The lower end of high-pressure condensate collection tank is connected to pipe network via first steam heat pump unit;Alternatively, the lower end of high-pressure condensate collection tank is sequentially connected to pipe network via medium-pressure condensate collection tank and first steam compressor.The upper end of medium-pressure condensate collection tank is connected to pipe network via first steam compressor;The lower end of medium-pressure condensate collection tank is connected to pipe network via second steam heat pump unit;Alternatively, the lower end of medium-pressure condensate collection tank is sequentially connected to pipe network via low-pressure condensate collection tank and second steam compressor.It uses more economical cascade utilization mode, and maximum degree utilizes condensate waste heat.

The utility model relates to metal hydride compressor technical field especially utilizes a kind of metal hydride compressor system of ion compound cooling and heating, including generator, ion compound concentrated solution is equipped in generator, the top outlet of generator is connected with the inlet of condenser by pipeline, the outlet of condenser is connected with the inlet of evaporator by pipeline through throttle valve A, the outlet of evaporator is connected with the inlet of absorber by pipeline, ion compound dilute solution is equipped in absorber, the outlet of absorber is connected with the inlet of generator by pipeline through solution pump, the bottom outlet of generator is connected with absorber through throttle valve B by pipeline;The hygroscopic exothermic reaction of ion compound is combined with metal hydride compressor, hydrogen is released after hydrogen release bottle heating, the compression release of hydrogen is realized;Hydrogen is absorbed after hydrogen absorption bottle cooling, the replenishment of hydrogen is realized, hydrogen release bottle can be connected fuel cell, hydrogen is provided to fuel cell and generates electricity.

The utility model discloses a flue gas waste heat recovery system which comprises a flue gas heat exchanger which comprises a shell, a heat exchange cavity is formed in the shell, a heat exchange plate is arranged in the heat exchange cavity, and first cooling liquid in the heat exchange plate can cool high-temperature flue gas; and the lithium bromide absorption type unit is connected with the flue gas heat exchanger, the lithium bromide absorption type unit can cool the first cooling liquid in the heat exchange plate, and meanwhile, the lithium bromide absorption type unit can cool the second cooling liquid used by a cooling liquid demand end. According to the technical scheme, the flue gas heat exchanger and the lithium bromide absorption type unit are combined for use, the flue gas is cooled through the flue gas heat exchanger so that the flue gas can reach the emission standard, and meanwhile, the lithium bromide absorption type unit and the second cooling liquid in the lithium bromide absorption type unit are cooled through the heat of the flue gas so that the cooling liquid demand end can use the cooling liquid. And full utilization of energy is realized, and great economic benefits are generated.

This invention discloses a distributed energy supply system integrating solar-assisted chemical loop reforming and a fuel cell, comprising a solar-assisted chemical loop reforming subsystem, a proton exchange membrane fuel cell subsystem, a chemical loop combustion subsystem, an absorption refrigeration subsystem, and a thermal energy storage subsystem. The system utilizes a concentrating photovoltaic (PV) thermal collector to capture solar energy, preheat the fuel, and generate electricity. The preheated fuel undergoes chemical loop reforming to produce hydrogen-rich reformed gas, which is then supplied to the fuel cell for efficient power generation. The fuel cell anode exhaust gas enters the fuel reactor of the chemical loop combustion subsystem, where lattice oxygen is provided by an oxygen carrier to achieve nitrogen-free dilution oxidation, generating product gas mainly composed of CO2 and H2O. The product gas is cooled, condensed, and dehydrated before being output with CO2 enrichment, and can optionally enter a buffer tank / compression unit. The system recovers waste heat from the fuel cell and the high-temperature flue gas from chemical loop combustion through a closed-loop heat transfer oil system, storing the waste heat in high- and low-temperature heat transfer oil tanks to provide a stable heat source for absorption refrigeration.

The utility model discloses an adsorption type heat pump system directly driven by steam. The adsorption type heat pump system comprises a first adsorption bed, a second adsorption bed, an evaporator, an ammonia circulation pipeline and a condenser, the first adsorption bed is communicated with the second adsorption bed through a throttling valve, and the other end of the first adsorption bed and the other end of the second adsorption bed are communicated with an ammonia circulation pipeline through a two-position four-way reversing valve to form an adsorption bed heat exchange fluid loop; the first adsorption bed is connected with the evaporator and the condenser through a vacuum valve; the second adsorption bed is connected with the evaporator and the condenser through a vacuum valve; the evaporator is connected with an external heat source, and the condenser is connected with the first cooling tower. According to the system, ammonia is used as a heat exchange medium of the adsorption bed, isothermal adsorption and desorption of the adsorption bed in the adsorption and desorption process are achieved through latent heat transfer of isothermal evaporation / condensation, the temperature gradient of the adsorbent in the working process is reduced, the heat transfer temperature difference is small, and the adsorption and desorption rate of the adsorbent and the operation stability of the system are effectively improved.

The application discloses a supplementary combustion type large-temperature-difference heat exchange unit and relates to the technical field of heat supply equipment. The supplementary combustion unit comprises a supplementary combustion generator, a first generator, a first condenser, a first low-pressure absorber, a first low-pressure evaporator, a first high-pressure absorber and a first high-pressure evaporator. A primary network water inlet is connected in communication with a primary network water outlet in sequence through the first generator, the large-temperature-difference heat exchange unit, the first high-pressure evaporator and the first low-pressure evaporator. Secondary network water branch pipes are connected in communication with a secondary network water outlet through the first condenser after passing through the first low-pressure absorber and the first high-pressure absorber. In the application, the supplementary combustion unit can still work together with the large-temperature-difference heat exchange unit to convert the temperature of the primary network water into the secondary network water even when the combustion part in the supplementary combustion generator is not used, the utilization rate of the equipment can be improved, and the heat exchange effect can be improved.

To provide an absorption chiller / heater that can continue operating even if a condition arises where an inert gas for purging the fuel piping cannot be supplied. [Solution] An absorption chiller / heater that transfers heat through a cycle between a refrigerant and an absorbent liquid includes a regenerator having a combustor 71 that burns a gaseous fuel F mainly composed of hydrogen to generate heat for heating the absorbent liquid, a fuel pipe 72 that leads the fuel F to the combustor 71, an inert gas pipe 76 that supplies inert gas N to the fuel pipe 72, an inert gas detector 78 that detects whether or not inert gas N can be supplied to the fuel pipe 72, and a control device 60 that controls the combustion operation in the combustor 71. When the inert gas detector 78 detects that inert gas N cannot be supplied to the fuel pipe 72 while the fuel F is burning in the combustor 71, the control device 60 controls the combustion operation in the combustor 71 so as to continue the combustion of fuel F in the combustor 71 until it receives a command to stop the absorption chiller / heater.

The application discloses a steam condensate waste heat utilization device and process based on energy saving and emission reduction, relates to the technical field of steam condensate heat recovery, and comprises a flash tank, a tubular heat exchanger, a pump and a condensate tank. A bubble elimination assembly is arranged on a hot water pipeline, and the bubble elimination assembly is used for shearing and crushing the bubbles generated by flashing through fluid impact and mechanical stirring action, so that large-volume steam clusters are eliminated, and the impact of fluid on downstream equipment is reduced. In the application, the bubble elimination bin and related components are arranged before entering the tubular heat exchanger, so that the forced high-pressure saturated condensate water completes the flashing process in the special bin body before entering the tubular heat exchanger. Through the structure of the multistage orifice plate and the movable ball, the excess energy of the fluid is consumed, and the violent flashing originally possibly occurring in the heat exchanger is resolved in advance. The cavitation damage problem is solved, and the service life of the tubular heat exchanger is significantly improved.

This application relates to an absorption refrigeration system for a low-temperature methanol washing device, comprising a liquid ammonia evaporation unit, an absorption pressurization unit, a heating and desorption unit, and a gaseous ammonia condensation unit arranged sequentially. The absorption pressurization unit is used to spray and absorb the gaseous ammonia after phase change from the liquid ammonia evaporation unit, and to pressurize the rich liquid after ammonia absorption. The heating and desorption unit is used to heat the pressurized rich liquid and desorb ammonia to release pressurized gaseous ammonia. The gaseous ammonia condensation unit is used to receive and condense the pressurized gaseous ammonia from the heating and desorption unit, and to recycle the condensed liquid ammonia back to the liquid ammonia evaporation unit. This invention can effectively reduce the energy consumption of the ice machine system and improve the steam thermal energy utilization rate. By combining the steam turbine of the ice machine system with the absorption refrigeration system, it can reduce the energy consumption of the ice machine or completely replace the gaseous ammonia compression and condensation performed in traditional ice machine systems.

To provide a combustion device, an absorption water cooling / heating machine, and a combustion amount control method, which simultaneously supply fuel of different types to a burner and ensure proper combustion thereof.SOLUTION: A combustion device 70 comprises: a storage unit 63 that stores a first relationship defining a flow rate-related value of air A corresponding to a flow rate-related value of first fuel F1 supplied to a burner 71, and a similar second relationship pertaining to a second fuel F2; and a control unit 61 that controls an air flow rate adjustment mechanism 77 so as to supply, to the burner 71, a supply air flow rate obtained on the basis of a value obtained by summing the flow rate-related values of the air A obtained from the first relationship and the second relationship, respectively. An absorption water cooling / heating machine comprises: the combustion device 70; a regenerator including at least the burner 71 of the combustion device 70; a condenser; and an evaporator. The control unit 61 operates the combustion device 70 with a smaller combustion amount between a combustion amount in the burner 71 for bringing a temperature of a cooling target medium to a target temperature and an upper limit combustion amount for maintaining proper operation of the absorption water cooling / heating machine.SELECTED DRAWING: Figure 1

Generally, the present disclosure provides a water collector for collecting water from a supply air. In particular, a water collector configured to remove heat obtained during adsorption of water by a water capture material contained in a water capture module of the water collector. Removing the enthalpy associated with adsorption of water by the water capture material can lower the equilibrium temperature of the water capture material and increase the driving force for adsorption of the water capture material, and correspondingly increase the absolute humidity difference between the supply air in the water capture module and the exhaust air passing out of the water capture module.

The invention belongs to the field of carbon dioxide energy storage of gas turbines, particularly discloses a carbon dioxide energy storage efficiency improving system coupled with a gas turbine and a working method of the carbon dioxide energy storage efficiency improving system, and aims at overcoming the defects that a conventional compressed carbon dioxide heat storage system is large in loss, and the electricity-electricity efficiency of the compressed carbon dioxide energy storage system is greatly reduced. In the energy storage process of the compressed carbon dioxide energy storage system, high-temperature flue gas of the gas turbine is used for refrigeration through the lithium bromide unit, cold energy is provided for carbon dioxide liquefaction in the energy storage process, an original electric refrigeration unit is replaced, and the economical efficiency of the system is improved; heat provided by a heat storage system in a conventional compressed carbon dioxide energy storage system is supplemented through heat of high-temperature flue gas of a gas turbine, the initial temperature of carbon dioxide gas entering the turbine is increased, the system circulation efficiency is improved, and therefore the electricity-electricity conversion efficiency of the compressed carbon dioxide energy storage system is improved.

The utility model relates to a waste heat recovery technical field, and disclose a kind of lithium bromide heating waste heat recovery device, including bottom plate, further include: fixed in the support rod of bottom plate top four corners, the top fixed connection of support rod has recovery tank, both sides of recovery tank top are rotatably connected with closure cover by hinge. Through the setting of filter assembly, first, the filter plate is inserted into the inner cavity of the sliding slot by the sliding block for fixation, then when the waste gas generated by gas stove needs to be filtered and recovered, the waste gas inside the gas stove is first transported by the conveying pipe, then the waste gas is discharged into the inner cavity of the recovery tank through the conveying pipe, and then the angle of waste gas discharge is guided and discharged by the internal flow guide plate while the waste gas is discharged into the recovery tank, and the waste gas is discharged onto the surface of the filter plate by the flow guide plate, and then the impurities in the waste gas are filtered and intercepted by the filter plate.

The application discloses a kind of mine goaf geothermal energy storage collaborative working face cooling system and control method, the system utilizes underground goaf to set goaf energy storage unit, the geothermal energy of geothermal exploitation well is used as the driving heat source of absorption refrigeration unit, coupling high-temperature heat pump unit waste heat recovery, goaf energy storage unit carries out energy storage, and multi-stage heat exchange unit carries out energy distribution, and geothermal energy is driven absorption refrigeration unit refrigeration by primary heat exchange module, working face is cooled by original mine air conditioning chilled water pipe network, geothermal tail water is heated by the waste heat of high-temperature heat pump unit by multi-stage heat exchange and completes heating, and is stored in heat storage goaf for system peak shaving, high-temperature heat pump unit recovers the gushing waste heat of working face gushing main pipe and stores in cold storage goaf to compensate cold, geothermal recharging well absorbs system waste heat, renewable energy is simultaneously absorbed, the cascade utilization of geothermal energy, gushing waste heat, goaf energy storage and working face cooling depth collaboration is realized.

The application discloses a coal mine dust in-situ combustion utilization and working face refrigeration system and method, a coal dust collection and classification subsystem for obtaining combustible coal dust with a predetermined particle size, a coal dust combustion and heat energy conversion subsystem for burning the combustible coal dust and preparing high-temperature hot water, an energy regulation unit for temporarily storing the high-temperature hot water and outputting high-temperature hot water with a stable temperature after regulation, a hot water absorption type refrigeration and working face cooling subsystem for cooling a coal mine working face by using the high-temperature hot water as a driving heat source, and an automatic control module for analyzing real-time temperature and coal dust concentration data of the working face to adjust the combustion power of the coal dust combustion and heat energy conversion subsystem and the refrigeration power of the hot water absorption type refrigeration and working face cooling subsystem, so that adaptive coal dust combustion and working face refrigeration are realized. The method realizes waste utilization and effectively reduces energy consumption by in-situ resource utilization of coal mine dust and cooling of the working face.

The embodiment of the application provides a kind of nonlinear energy-saving control method and system of absorption refrigeration system, the method comprises: obtaining the operating state information about absorption refrigeration system;Utilize the operating state information to train and learn state model, generate first control information;Through fractional order active disturbance rejection control, closed-loop control compensation is generated, to generate second control information.The technical scheme provided in the embodiment of the application is based on the operating state information, the deep reinforcement learning is fused with fractional order active disturbance rejection control, so that the system directly learns the optimal control strategy from the operating state information, overcomes the control deviation caused by model simplification or mismatch in traditional method, and automatically switches to fractional order active disturbance rejection control under severe disturbance to ensure system stability, so as to maintain high-precision refrigerant water outlet temperature control and high system energy efficiency ratio in complex operating environment.

This invention relates to the field of air-to-water extraction technology and discloses a solar-powered adsorption-type air-to-water extraction unit, comprising a left shell plate and a right shell plate. An adsorption bed plate one and an adsorption bed plate two are disposed inside the right shell plate. An adsorption bed assembly one is disposed on the top surface of the adsorption bed plate one, and an adsorption bed assembly two is disposed on the top surface of the adsorption bed plate two. An air inlet valve for adsorption bed one is disposed on the back of adsorption bed one, an air outlet valve for adsorption bed one is disposed on the front of adsorption bed one, and an air inlet valve for adsorption bed two is disposed on the back of adsorption bed two. This solar-powered adsorption-type air-to-water extraction unit fully utilizes solar energy and humid air during both adsorption and desorption processes, eliminating the need for electric heating and achieving a more energy-efficient operation. During desorption, the solar collector provides energy, effectively reducing energy consumption and controlling water production costs.

The invention relates to a renewable power and / or water generator with an absorption heat transformer (AHT) providing a heat pump, an Organic Rankine Cycle (ORC) for generating power, and a coupling between the AHT and the ORC to regenerate ORC rejection heat. The AHT consists of a low pressure evaporator and a vapour absorption binary (VAB) reactor that forms the coupling between the AHT and ORC. The VAB reactor includes an absorption section with an absorber heat exchanger and a distillation section provided by a rotating centrifugal unit that includes a flooded rotating packed bed.

An absorption type hot and cold water machine that moves heat by circulation of a refrigerant and an absorbent, comprising: a regenerator having a combustor that combusts a fuel of a gas mainly composed of hydrogen to generate heat for heating the absorbent; a fuel pipe that guides the fuel to the combustor; an inert gas pipe that supplies inert gas to the fuel pipe; an inert gas detector that detects whether or not the inert gas can be supplied to the fuel pipe; and a control device that controls combustion operation in the combustor. In the middle of combustion of the fuel in the combustor, in the case where the inert gas detector detects a state in which the inert gas cannot be supplied to the fuel pipe, the control device controls the combustion operation in the combustor in such a manner that the combustion of the fuel in the combustor is continued until an instruction to stop the absorption type hot and cold water machine is accepted.

The present application relates to a kind of compound lithium bromide absorption unit capable of refrigeration and heating, on the basis of the second lithium bromide absorption heat pump unit of steam single-effect cycle, it is also provided with refrigeration evaporator, refrigeration absorber and refrigeration solution heat exchanger, refrigeration evaporator and refrigeration absorber are arranged in the upper portion of the cylinder where generator and condenser are located, the lower portion of the cylinder where heating evaporator and heating absorber are located.Valve switching and adjustment control make refrigeration cycle and heating cycle can be safely and reliably operated on the same unit, and when refrigeration and heating are simultaneously operated, the refrigerating capacity and heating capacity of rated condition can be reached, when refrigeration load is reduced, heating load increases accordingly, when refrigeration stops, heating alone, and the heating capacity reaches the maximum, so, the unit of the present application can meet the needs of user refrigeration and steam production, reduce initial investment cost, very energy saving and environmental protection, with very good economic benefit and social benefit.

The application discloses a kind of test systems of multi-frequency ultrasonic coupling reinforced falling film generation process, the test system includes falling film generator body (3), ultrasonic atomization controller (23), ultrasonic atomization controller (24), concentrated solution configuration system, heating water system, working condition control system, ammonia recovery system, experimental support system, high-precision parameter measurement system;Ultrasonic atomization controller (23) and ultrasonic atomization controller (24) control the power, frequency and phase of annular ultrasonic atomizer (7) and annular ultrasonic oscillator (6) respectively;According to the control and record corresponding parameters of set parameter.This application quantitatively analyzes the synergistic promotion effect of multi-frequency ultrasonic oscillation atomization coupling on heat and mass transfer of generation process by testing the generation characteristics of different working parameters under the condition of ultrasonic strengthening or not, and the core purpose is to maximize the generation performance by analyzing the change of mass transfer driving potential of different falling film heights, and to actively control by using ultrasonic parameters. This method has important significance for promoting the heat and mass transfer of generator, and has universality for generator performance test.

To estimate a process state from measurement results of a variety of kinds of sensors in order to enhance the use efficiency of heat in a chemical heat pump, and to enhance the use efficiency of the heat by allowing a transition to a succeeding motion after a finish of a process.SOLUTION: A control device (C1) of a steam generation device (12) for generating steam by using a chemical heat pump (21) acquires an input parameter (C111) from a sensor arranged at a first point, and a sensor arranged at a second point, and estimates an output parameter (C113) related to a process state by inputting the input parameter into a learnt estimation model (C112). The first point and the second point are not limited in different points.SELECTED DRAWING: Figure 1