62results about "Boilers/analysers" patented technology

The invention discloses a cryogenic step-by-step preparation unit and process based on injection condensation and enhanced heat absorption in the technical field of absorption refrigeration. The cryogenic step-by-step preparation unit comprises a generation assembly, an evaporation absorption assembly, an injection assembly and a condenser. The evaporation and absorption assembly comprises a medium-pressure evaporator, a low-pressure evaporator, a medium-pressure absorber and a low-pressure absorber; the generating assembly utilizes a heat source to produce a cold source, the medium-pressure evaporator utilizes part of the cold source produced by the generating assembly to primarily cool a secondary refrigerant, and the low-pressure evaporator utilizes the remaining cold source discharged by the medium-pressure evaporator to cool the secondary refrigerant again. The condenser produces cold energy which is used as cold sources of the medium-pressure absorber and the low-pressure absorber respectively; the absorption type refrigerating unit is optimally designed, single-stage refrigeration is replaced by stage-by-stage refrigeration, the problem that the cost of single-stage refrigeration is too high due to the fact that equipment is too large is solved, and then application of the unit in the deep cooling scene is expanded.

The invention discloses an energy-saving efficient refrigerating unit and process for preventing cavitation of a steam condensate pump in the technical field of refrigeration. The energy-saving efficient refrigerating unit comprises a high-pressure generator, a medium-pressure generator, a high-pressure evaporator, the steam condensate pump, a composite power generation compressor and a refrigerating assembly. Heat of saturated steam condensate flowing out of the high-pressure generator is absorbed by the high-pressure liquid refrigerant through the high-pressure evaporator, and the saturated steam condensate is changed into supercooled steam condensate, so that cavitation cannot be generated when the supercooled steam condensate enters the steam condensate pump, an original mode of increasing the height difference between the generator and the steam condensate pump is replaced, and the production efficiency is improved. The cost of a unit pipeline is reduced, meanwhile, the cost of ultrahigh transportation is reduced, heat contained in saturated steam condensate is converted into pressure energy of a high-pressure gaseous refrigerant to be used for driving a composite power generation compressor to work, the pressure energy is converted into electric energy and pressure energy of a low-pressure gaseous refrigerant, and the electric energy is used for a solution pump. The deep utilization of the internal energy of the unit can be realized, and the COP of the unit is improved.

This invention relates to a low-grade waste heat-driven two-stage absorption refrigeration system and method, comprising: a low-pressure stage solution circulation loop, a high-pressure stage solution circulation loop, and a refrigerant circulation loop; saturated liquid output from the condenser in the refrigerant circulation loop mixes with condensed saturated liquid output from the high-pressure stage solution circulation loop, and then undergoes primary throttling and pressure reduction to an intermediate pressure via a first throttling valve before entering a gas-liquid separator for separation; the separated saturated vapor is absorbed by the high-pressure stage solution circulation loop; the separated saturated liquid mixes with condensed saturated liquid output from the low-pressure stage solution circulation loop, and then undergoes secondary throttling and pressure reduction to an evaporation pressure via a second throttling valve before entering an evaporator for evaporation and cooling to generate cooling capacity. This invention utilizes two-stage throttling of the refrigerant at the condenser outlet to reduce irreversible losses, and simultaneously utilizes superheated steam from the generator outlet to preheat the dilute solution, fully utilizing waste heat, which can significantly improve the performance of traditional two-stage absorption refrigeration systems.

The present invention discloses an energy storage system and method for integrated absorption refrigeration using R134a as a circulating medium. The system includes an energy storage power generation module, an absorption refrigeration module, a solar heating module, an oil tank module, and a thermochemical energy storage module. The R134a vapor outlet of the reaction absorber is connected to the R134a storage tank. The R134a vapor discharged from the R134a storage tank flows to the energy storage power generation module and the absorption refrigeration module to provide cooling and electricity. Heating and cooling in the reaction absorber are achieved through heat exchange with hot and cold oil, which is provided by the solar heating module, the oil tank module, and the thermochemical energy storage module. Using R134a refrigerant as the circulating medium for the energy storage power generation module and the absorption refrigeration module increases energy storage density. Combining the absorption refrigeration device with the compressor unit and gas storage unit of the compressed air energy storage device to form a reaction absorber allows for miniaturization of the device. The multiple energy supply meets the uninterrupted cooling and power supply needs of small residential and commercial buildings.

The utility model relates to a first-class lithium bromide absorption heat pump unit for preparing a high-temperature heat source. Comprising a generator A, a condenser A, a generator B, a condenser B, an evaporator A, an absorber A, an evaporator B, an absorber B, a heat exchanger A, a heat exchanger B, a solution pump A, a refrigerant pump A, a solution pump B, a refrigerant pump B, an internal circulation water pump, an internal circulation medium-temperature hot water system, pipelines, valves and the like, recycled low-temperature waste heat source heat is transferred to internal circulation medium-temperature hot water through the evaporator A and the absorber A. The internal circulation medium-temperature hot water enables the evaporation temperature of the evaporator B to be increased and the absorption pressure to be increased, so that the absorber B produces a high-temperature heat source. The generator and the condenser adopt independent cylinders, the pressure bearing capacity and the thermal displacement capacity of the unit are improved, the generating pressure and the condensing temperature are increased, and a high-temperature heat source can be produced. The unit expands the application field, realizes single-machine ultra-large type, reduces the total investment, and improves the comprehensive utilization rate of energy.

The invention provides a third-class jet-absorption heat pump, and belongs to the technical field of heat pumps. The low-temperature generator is communicated with the high-temperature generator through the solution pump, the solution heat exchanger and the second solution heat exchanger, the high-temperature generator is communicated with the absorber through the second solution heat exchanger, the absorber is communicated with the low-temperature generator through the solution heat exchanger, the low-temperature generator is communicated with the low-temperature condenser, and the low-temperature condenser is communicated with the evaporator through the low-pressure pump. The high-temperature generator is communicated with the high-temperature condenser, the high-temperature condenser is communicated with the evaporator through the throttling valve, the high-temperature condenser is communicated with the steam generator through the high-pressure pump, the steam generator is communicated with a high-pressure steam inlet of the ejector, the evaporator is communicated with a low-pressure steam inlet of the ejector, and the ejector is communicated with the absorber. The high-temperature generator and the steam generator are provided with high-temperature heat medium channels, the absorber and the high-temperature condenser are provided with heated medium channels, the low-temperature condenser is provided with a cooling medium channel, the low-temperature generator and the evaporator are provided with low-temperature heat medium pipelines to be communicated with the outside, and the third-class jet-absorption heat pump is formed.

The invention discloses a shutdown control method and control device for a large absorption heat pump, and the shutdown control method comprises the steps: respectively obtaining pressure data P1 in a generator and pressure data P2 in an absorber after the large absorption heat pump receives a shutdown instruction; calculating a difference value between the pressure data P1 and the pressure data P2 to obtain a pressure difference delta P between the generator and the absorber; adjusting the actual operation frequency of the solution pump based on the pressure difference delta P actual corresponding to the actual lift of the solution pump; when the pressure difference delta P is smaller than or equal to a preset shutdown deviation value, the solution pump is controlled to operate at a low maintenance frequency and used for providing micro-pressure guarantee for solution circulation; and after the solution pump continuously runs for a preset time at the lower maintaining frequency, the solution pump stops running. Smooth and controlled frequency reduction and shutdown of the solution pump in the shutdown process are achieved, and violent vibration and abnormal sound in the shutdown process of a large absorption heat pump are eliminated.

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 generator (120) includes a housing (200) and a housing receiving cavity (303) defined by the housing (200). The housing cavity (303) includes an upper cavity portion (304), a middle cavity portion (306), and a lower cavity portion (308), a first group of heat exchange tubes (382) disposed in the upper cavity portion (304) and immersed in the upper solution, a second group of heat exchange tubes (384) disposed in the lower cavity portion (308), and a dispenser (307) disposed in the middle cavity portion (306), which receives the upper solution from the upper cavity portion (304) and dispenses the upper solution ejected from the upper cavity portion (304) onto the second group of heat exchange tubes (384). By dividing the heat exchange tube bank into two heat exchange tube banks, the height of the upper flooded heat exchange tube bank (382) is reduced, thereby reducing the influence of hydrostatic pressure on the bottom pipe line, and the lower falling film heat exchange tube bank (384) is separated from the high temperature heat source inlet, which effectively prevents the solution from crystallizing at the falling film heat exchange tube bank due to the excessive temperature difference.

The application discloses an absorption refrigeration technology field and relates to a crystallization-preventing and step-by-step deep cooling unit and process, which comprises a generation-condensation assembly, an evaporation-absorption assembly and an ejector; the generation-condensation assembly comprises a high-pressure evaporator, a high-pressure generator, a sub-high-pressure generator and a condenser; the evaporation-absorption assembly comprises a medium-pressure absorber, a low-pressure absorber, a medium-pressure evaporator and a low-pressure evaporator; the absorption refrigeration unit is optimized and designed in the application, part of heat in a high-temperature heat source is converted into pressure energy of high-pressure gaseous refrigerant, and the pressure energy of the high-pressure gaseous refrigerant is converted into pressure energy of the absorber through injection, so that the heat source temperature can be reduced, crystallization can be prevented, the absorption efficiency of the absorber can be improved, and therefore the deep cooling efficiency can be improved.

The invention discloses a unit and process for preventing crystallization and preparing copious cooling step by step in the technical field of absorption refrigeration. The unit comprises a condensation generation assembly, an evaporation absorption assembly and an ejector. The condensation generation assembly comprises a high-pressure evaporator, a high-pressure generator, a sub-high-pressure generator and a condenser. The evaporation absorption assembly comprises a medium-pressure absorber, a low-pressure absorber, a medium-pressure evaporator and a low-pressure evaporator. The absorption type refrigerating unit is optimally designed, part of heat in a high-temperature heat source is converted into pressure energy of the high-pressure gaseous refrigerant, then the pressure energy is converted into pressure energy of the absorber through ejection of the high-pressure gaseous refrigerant, the temperature of the heat source can be reduced, crystallization can be prevented, the absorption efficiency of the absorber can be improved, and the energy consumption of the absorber is reduced. Therefore, the cryogenic preparation efficiency is improved.

The present invention discloses a solar-driven mixed refrigerant two-stage separation low-temperature refrigeration method and refrigeration system, wherein the superheated mixed refrigerant vapor discharged from the generator enters the ejector assembly as the working fluid, and the high-pressure superheated refrigerant vapor discharged from the ejector assembly is cooled and lowered in the first regenerator and then enters the condenser to realize partial condensation of the mixed refrigerant to form a gas-liquid two-phase mixture, and the gas-liquid two-phase mixture flows into the second regenerator and is further cooled so that the low-boiling-point component in the gas phase is partially condensed into liquid, and enters the two-stage gas-liquid separator unit for a flash separation step; this solution improves the purity of the low-boiling-point component through multi-stage condensation and graded condensation technology, thereby obtaining a lower refrigeration temperature, and improves the system energy efficiency ratio through the cascade utilization of cooling capacity.

The present invention provides a two-stage absorption-compression heat-coupled heat pump system and operating method, comprising a compression heat pump sub-circulation system comprising a compressor, a compression cycle condenser, and a compression cycle evaporator, the compressor, multiple compression cycle condensers, and compression cycle evaporators being sequentially connected by pipelines; and a two-stage absorption heat pump sub-circulation system comprising a high-pressure absorber, a low-pressure absorber, a generator, a solution heat recovery device, an absorption cycle condenser, and an absorption cycle low-pressure evaporator. By providing the compression heat pump sub-circulation system and the two-stage absorption heat pump sub-circulation system, the temperature rise capability of the compression heat pump and the efficiency of the two-stage absorption heat pump are improved. This system also provides an efficient circulation method for raising the temperature of low-grade heat sources and recovering waste heat, and helps improve the efficiency of waste heat recovery.

This invention discloses a refrigeration system employing dual ejectors, relating to the field of compression refrigeration technology. The system includes a condenser, a working fluid pump, a generator, a two-phase ejector, a steam ejector, a gas-liquid separator, a scroll compressor, and an evaporator. The condenser outlet is connected to the working fluid pump inlet, the working fluid pump outlet is connected to both the generator inlet and the primary flow inlet of the two-phase ejector, the generator outlet is connected to the primary flow inlet of the steam ejector, the two-phase ejector outlet is connected to the gas-liquid separator inlet, the gas outlet of the gas-liquid separator is connected to the scroll compressor inlet, the liquid outlet of the gas-liquid separator is connected to the evaporator inlet, the evaporator outlet is connected to the secondary flow inlet of the two-phase ejector, the scroll compressor outlet is connected to the secondary flow inlet of the steam ejector, and the steam ejector outlet is connected to the condenser inlet. This invention improves the efficiency and performance of the entire system, thereby achieving higher operational efficiency.

The invention discloses a combined cooling and heating system based on an absorption technology, which relates to the technical field of combined cooling and heating and comprises a high-temperature waste gas system, an absorption heat supply system and an absorption refrigeration system. The heat exchange intensity is improved by installing the absorption type large-temperature-difference heat generating unit, the recovery temperature of a heat supply pile is reduced, the energy transmission capacity of a pipe network is improved, and the overall heat supply performance can be improved. By installing the absorption type refrigerating system, when heat supply needs do not exist in summer or the heat supply load is low, generated hot water is used for driving the absorption type refrigerator to conduct refrigeration, centralized cooling is achieved, the use efficiency can be improved, and the economic benefits can be improved. Due to the fact that the overall heat supply and cold supply have large load fluctuation in different time periods, the heat storage body and the cold storage body are added, the system load can be well adjusted, the load adjusting pressure is relieved, meanwhile, the system is prevented from being overheated and overcooled, and the starting speed and the adjusting reaction capacity of the system are improved.

The invention relates to the technical field of high-temperature heat pumps, in particular to an absorption and compression medium-high temperature heat pump system which comprises a medium-temperature output subsystem and a high-temperature output subsystem. The medium-temperature output subsystem comprises a low-pressure absorber, a second liquid pump, a second solution throttle valve, a first heat exchanger, a medium-pressure generator and a condenser which are connected; an independent medium-temperature output loop is constructed by additionally arranging a low-pressure absorber, a medium-pressure generator, a first heat exchanger and other core components, and output of high-temperature steam of 150 DEG C or above and medium-temperature hot water of about 60 DEG C can be achieved at the same time; the high-temperature loop is responsible for outputting high-temperature steam, the medium-temperature loop is responsible for outputting medium-temperature hot water, the heat exchange temperature difference of cold and hot fluid is reduced through hierarchical design, and irreversible loss is reduced; through modular integration of the high-temperature output subsystem and the medium-temperature output subsystem, only a small number of components such as the low-pressure absorber, the medium-pressure generator and the first heat exchanger are additionally arranged, the double-temperature output requirement can be met at the same time, the number of heat exchange equipment, valves and pipelines is reduced, the structure is simplified, and the cost is reduced.

The application provides a kind of ejector-driven diffusion-absorption heat transformer based on gravity liquid supply, comprising jet generator, solution separator, refrigerant condenser, refrigerant separator, refrigerant reservoir, evaporator, absorber, solution heat exchanger, solution reservoir, diffusion condenser, first diffusion reservoir, second diffusion reservoir, third diffusion reservoir, diffusion evaporator; the application simplifies diffusion generator device, and diffusion evaporator is directly inputted with heat source to make it occur, and the system circulation structure is greatly simplified by using heat-driven jet generator to realize refrigerant and solution pumping and separation; at the same time, without using electrically-driven pump, the problem of high-temperature solution corrosion is avoided, and the stability and reliability of system operation are improved. The application can utilize industrial waste heat, solar energy and geothermal energy and other low-grade heat energy, and has important significance for improving energy utilization rate.

The invention discloses an energy self-circulation system and belongs to the technical field of refrigeration. The lithium bromide refrigeration module comprises a generator, a multifunctional condenser, a refrigerant water throttling component, an evaporator and an absorber, the multifunctional condenser comprises a condensation chamber and a dilute solution preheating pipeline, and the evaporator comprises an evaporation chamber and a refrigeration pipe; a lithium bromide solution sequentially and circularly flows through the generator, the absorber and the dilute solution preheating pipeline, and refrigerant water sequentially flows through the generator, the condensation chamber, the refrigerant water throttling component, the evaporation chamber and the absorber; the indoor refrigeration module comprises a first evaporation flow channel, a second evaporation flow channel, a compressor, a condensation pipe and a refrigerant throttling component. A refrigerant sequentially and circularly flows through the first evaporation flow channel, the second evaporation flow channel, the compressor, the condensation pipe and the refrigerant throttling component. The photovoltaic power generation module comprises a photovoltaic panel, a cooling back plate, an inverter and a storage battery; the condensation pipe is arranged in the generator, the second evaporation flow channel is arranged in the condensation chamber, and the refrigeration pipe is connected with the cooling back plate. According to the invention, resource waste can be effectively avoided.

A condensation device for a carbon dioxide compression refrigeration system, and a carbon dioxide compression refrigeration system comprising same. The condensation device comprises: a generator, which receives gaseous carbon dioxide at a first temperature, and cools the gaseous carbon dioxide at the first temperature to gaseous carbon dioxide at a second temperature; an intermediate heat exchanger, which receives the gaseous carbon dioxide at the second temperature, and converts the gaseous carbon dioxide at the second temperature into gaseous carbon dioxide at a critical temperature; an evaporator, which enables the gaseous carbon dioxide at the critical temperature to be cooled by a refrigerant liquid to achieve condensation phase change, so that the gaseous carbon dioxide is converted into liquid carbon dioxide for discharge; a condenser; and an absorber.

The utility model relates to an efficient coupling heat exchange heat pump device which comprises a generator connected with a first compressor. The first compressor is connected with the condenser; the condenser is connected with a first throttle valve; the first throttle valve is connected with the first evaporator; the first evaporator is respectively connected with the second compressor and the second throttle valve; the second compressor is connected with the first absorber; the first absorber is connected with the second absorber; the second throttle valve is connected with the second evaporator; the second evaporator is connected with the third compressor; the third compressor is connected with the second absorber; the second absorber is connected with a circulating pump; and the circulating pump is connected with the generator. Compared with a conventional heat pump, the mode that the two evaporators are connected in series is adopted, a waste heat source can be more fully utilized, the two absorbers are connected in series so that a cold source can further absorb more heat energy, and therefore the temperature can be increased step by step.

Described herein are devices, systems, and methods for the capturing, transferring, and managing of heat energy. Phase change materials are used for their high thermal inertia property and large energy per volume property when operated near their solid-liquid transition point. Additionally, the systems, devices, and methods utilize one or more thermoelectric modules thermally coupled to a first side of the phase change material and one or more thermoelectric modules thermally coupled to a second side of the phase change material, opposite the first side. The use of the thermoelectric modules allows heat energy to be stored in, transferred within, or harvested from, the phase change material the thermoelectric modules couple to.

This invention provides a heat pump energy storage system with waste heat utilization function. The heat pump energy storage system includes an energy storage compressor unit, an energy storage expander unit, and a regenerating heat exchanger assembly for forming an energy storage loop; an energy release compressor unit and an energy release expander unit for forming the energy storage loop with the regenerating heat exchanger assembly; a heat storage unit for storing released heat energy; a cold storage unit for storing released cold energy; a waste heat exchanger for extracting waste heat between the regenerating heat exchanger assembly and the cold storage unit; and an absorption refrigeration assembly. The absorption refrigeration assembly can utilize waste heat as a driving energy source to reduce the temperature of the medium flowing into the waste heat exchanger for waste heat extraction. The heat pump energy storage system of this invention exchanges waste heat to the absorption refrigeration assembly through the waste heat exchanger, and utilizes the waste heat as a driving energy source through the absorption refrigeration assembly to increase the temperature difference between thermal and cold energy in the system.

The utility model discloses a waste heat utilization system for intermediate liquid at the top of a desorption tower. The waste heat utilization system comprises the desorption tower, a waste heat recovery device, an intermediate tower tray and a reboiler, a first material pipeline is led out from the middle tray to enter a waste heat recovery device, and enters a reboiler after being heated, so that the middle tray of the desorption tower, the waste heat recovery device and the reboiler are sequentially communicated to form a waste heat recovery heating loop; the tower top of the desorption tower enters the waste heat recovery device through a third material pipeline, and enters the tower top condenser after being cooled by the waste heat recovery device, so that the desorption tower is sequentially communicated with the waste heat recovery device and the tower top condenser to form a waste heat recovery cooling loop. According to the waste heat utilization system, on one hand, waste heat of steam at the tower top is recycled, the waste heat discharge amount of the system is reduced, on the other hand, an intermediate liquid material is heated, low-grade waste heat is used for replacing a high-temperature heat source of the reboiler at the tower bottom through the waste heat recycling device, the process steam consumption of the reboiler at the tower bottom of the desorption tower is reduced, and a large amount of steam is saved.

The utility model relates to a compact first-class lithium bromide absorption heat pump unit for preparing a high-temperature heat source. Comprising a generator A, a condenser A, a generator B, a condenser B, an evaporator A, an absorber A, an evaporator B, an absorber B, a heat exchanger A, a heat exchanger B, a solution pump A, a refrigerant pump A, a solution pump B, a refrigerant pump B, an internal circulation water pump, an internal circulation medium-temperature hot water system, pipelines, valves and the like, two barrels are adopted to form four cavities, the structure is compact, the evaporator A and the absorber A transfer recycled low-temperature waste heat source heat to internal circulation medium-temperature hot water, the internal circulation medium-temperature hot water enables the evaporation temperature of the evaporator B to be increased and the absorption pressure to be increased, and the absorber B produces a high-temperature heat source; as a single machine is miniaturized, the length, width and height of the unit are small, the loading capacity of the generator and the condenser is improved, the thermal displacement is very small, the high-temperature and high-pressure design conditions can be met without increasing the material cost, the generating pressure and the condensing temperature are increased, and a high-temperature heat source can be produced. The unit improves the comprehensive utilization rate of energy, can produce a high-temperature heat source, expands the application field, and is suitable for occasions with miniaturized single machines.

An absorption chiller system includes a generator section, a condenser section, an evaporator section and an absorber section all in fluid communication with each other and which operate to circulate a refrigerant therethrough. The evaporator section includes a transport membrane heat exchanger. The transport membrane heat exchanger includes a first and a second flow path. The first flow path is operable to flow the refrigerant therethrough under a vacuum pressure that is low enough to vaporize the refrigerant within the first flow path. The second flow path is operable to pass a fluid having water therethrough. Both water and heat are transferred from the fluid in the second flow path to the refrigerant in the first flow path through a membrane-based material of the transport membrane heat exchanger, such that the fluid passing through the second flow path has at least a portion of its water removed and is cooled.

The utility model relates to the technical field of comprehensive utilization of solar energy, in particular to a solar photovoltaic photo-thermal system, which comprises a photovoltaic power generation subsystem and a photo-thermal refrigeration, heating and power generation subsystem, and the photo-thermal refrigeration, heating and power generation subsystem is composed of a solar trough type heat collector, a heat exchanger and a lithium bromide absorption type refrigerator. An oil discharge outlet of the solar trough type heat collector is communicated with a shell side inlet of the heat exchanger, a pipe side outlet of the heat exchanger is communicated with a heat source inlet of a generator in the lithium bromide absorption type refrigerator, and a refrigerant outlet of an evaporator in the lithium bromide absorption type refrigerator is communicated to a load side through a refrigerant conveying pipeline. According to the utility model, the photovoltaic power generation subsystem and the photo-thermal refrigeration heating power generation subsystem are integrated, so that the electric heating and refrigeration requirements in remote areas or severe environments can be effectively met, and the comprehensive utilization efficiency of solar energy is improved.

The invention relates to the technical field of metal hydride compressors, in particular to a cooling and heating method of a metal hydride compressor system. Comprising a generator, a condenser, an evaporator and an absorber, ionic compound solutions are arranged in the generator and the absorber, water heated by the generator and ionic compounds are separated to form an ionic compound concentrated solution, generated water vapor enters the condenser, the condenser exchanges heat with a heat exchanger A, and circulating water in the heat exchanger A is heated and then led to a heater. A hydrogen discharging bottle is arranged in the heater; liquid water generated after passing through the condenser enters an evaporator, the evaporator exchanges heat with a heat exchanger B, circulating water in the heat exchanger B is cooled and then led to a cooler, and a hydrogen absorption bottle is arranged in the cooler; moisture absorption and heat release reactions of ionic compounds are combined with a metal hydride compressor, a hydrogen release bottle releases hydrogen after being heated, a hydrogen absorption bottle absorbs hydrogen after being cooled, and the hydrogen release bottle can be connected with a fuel cell to provide hydrogen for the fuel cell for power generation.

The invention relates to the technical field of refrigeration, in particular to an intermediate-effect absorption type refrigeration cycle system which comprises a semi-effect cycle refrigeration pipeline and a single-effect cycle refrigeration pipeline. The pressure generator module of the half-effect circulation refrigeration pipeline is connected with the medium-pressure generator of the single-effect circulation refrigeration pipeline, the medium-pressure generator is connected with the condensation assembly of the single-effect circulation refrigeration pipeline, and the condensation assembly is connected with the pressure generator module; the pressure generator module is used for heating a refrigerant solution output by the condensation assembly under driving of a heat source to generate high-temperature refrigerant steam, transmitting the high-temperature refrigerant steam to the medium-pressure generator to drive the single-effect circulation refrigeration pipeline to conduct refrigeration, and transmitting medium-temperature refrigerant steam generated by the medium-pressure generator to the condensation assembly. The single-effect refrigeration cycle is driven by the high-temperature refrigerant steam generated in the half-effect refrigeration cycle process, so that the heat source utilization step of the basic cycle is increased while the half-effect cycle efficiency is improved, and full utilization of low-grade heat energy is achieved.

The present application belongs to the field of refrigeration technology, and particularly relates to a composite generator and an absorption refrigeration system thereof. The composite generator comprises a generator body, a gas pocket and a liquid pocket are respectively arranged at the upper end and the lower end of the generator body, the gas pocket is arranged on the gaseous refrigerant outlet of the generator body, and the liquid pocket is arranged on the rich liquid inlet of the generator body. The composite generator can remove the liquid foam entrained in the resolved gaseous refrigerant, recycle part of the heat contained in the gaseous refrigerant, improve the evaporation efficiency of the evaporator, reduce the cooling capacity required by the condenser, use the high-pressure energy of the high-temperature and high-pressure lean liquid generated by the generator to pressurize the heat source entering the generator, improve the energy utilization rate of the unit, introduce the waste heat from the generator into the generator again, and preheat the rich liquid entering the generator, so as to improve the performance of the unit.

The invention discloses a supercritical Brayton cycle cascade power generation system based on an absorption system, which belongs to the technical field of multi-energy complementation and energy storage and comprises a supercritical Brayton cycle unit and an AORC unit. The supercritical Brayton cycle unit generates power through expansion work of a first working medium; the ORC unit comprises an absorption type subsystem and an ORC unit; the absorption subsystem serves as a cooler in the supercritical Brayton cycle unit and is used for cooling a first working medium; and the ORC unit heats the working medium by taking the cooling heat absorbed by the absorption type subsystem when the first working medium is cooled as a heat source, and generates power through expansion acting of the working medium. According to the system, the cooling bottleneck of the supercritical Brayton cycle system at high temperature is overcome through the absorption subsystem to reach the critical temperature, and meanwhile, heat absorbed by the absorption subsystem is used as a heat source of the ORC subsystem, so that the overall energy utilization efficiency and the applicability of the system in a severe environment are remarkably improved.