491results about "Sorption machines" patented technology

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.

A composite material for passive cooling includes a porous structure including an expanded graphite and a surfactant, the porous structure being provided with at least one crystalline deliquescent salt that is selected from the group consisting of chloride, bromide, sulphate, and nitrate. The uses of the composite material in passive cooling are also addressed.

The invention provides a self-adaptive variable multi-stage absorption refrigerating machine and a data center waste heat recovery cooling system. The refrigerator includes an evaporator; a condenser; the solution flow path switching module is used for adjusting the operation number of the absorption refrigeration subsystems; and at least two absorption refrigeration subsystems, in each of which the solution heat exchanger is simultaneously in fluid communication with the absorber and the generator. The mass coupling mechanism that refrigerant steam generated by a generator of the upper-stage absorption refrigeration subsystem directly enters an absorber of the lower-stage absorption refrigeration subsystem to be absorbed is utilized, a multi-stage absorption refrigeration cycle with the middle pressure gradient is constructed, and the temperature of an effective driving heat source is reduced to 45-50 DEG C. In addition, the solution flow path switching module is configured to dynamically reconstruct the solution flow path topology, and the unit can be adaptively and preferentially switched among multiple operation modes, so that efficient operation under the variable working conditions all the year round is kept.

A solar environmental control system includes a solar powered apparatus and a heat transfer apparatus. The solar collection apparatus includes a solar collector for absorbing solar energy, a heat storage medium, and a generator. A heat transfer fluid circulates between the solar collector, the heat storage medium, and the generator.

The invention discloses an evaporation pressure reference controller for a lithium bromide absorption refrigeration system. The evaporation pressure reference controller comprises a pressure detection unit, a reference unit, a comparison unit and an execution unit. The pressure detection unit detects absolute pressure in the evaporator in real time; the reference unit provides a reference signal of the target evaporation pressure; the comparison unit outputs a pressure deviation signal; and the execution unit adjusts the circulation volume of the lithium bromide solution so as to approach to the solution circulation volume under the full-load design working condition of the system, and the adjustment benchmark is the full-load design working condition of the system. The evaporation pressure serves as an absolute physical reference, the solution circulation amount is dynamically adjusted, the system is made to adapt to the heat source load, the concentration automatically avoids the crystallization line, and the functions of load monitoring, crystallization early warning, energy efficiency calculation and the like are provided. And the device is suitable for various low-grade heat source scenes such as hot water, steam and flue gas, can be used for new machine manufacturing and stock transformation, and reduces the equipment size and the manufacturing cost.

The invention relates to the technical field of gas-fired boilers, in particular to a distributed energy system based on a gas-fired boiler and an operation method. A three-layer convolutional neural network model is adopted by a load prediction module of the intelligent control platform, a cooling, heating and power load prediction value is output through convolutional layer feature extraction and a full connection layer, and an energy scheduling module is combined based on a model prediction control algorithm, and the lowest system operation cost is taken as a target. State variables such as steam pressure and the opening degree of a fuel regulating valve are optimized in a rolling mode, the load prediction accuracy and the multivariable collaborative optimization capacity are improved, and steam emptying is reduced. A steam exhaust port of a low-pressure steam turbine of a double-shaft back pressure type steam turbine set is divided into two paths which are connected with a steam-water heat exchanger and an absorption refrigerator respectively, steam exhaust flow distribution is adjusted through an electric adjusting valve, a water heat storage tank and a lithium battery energy storage system are combined, cooperative control is conducted through an energy management gateway, heat is stored and released during heat load fluctuation, and charging and discharging are conducted in the valley-peak section of a power grid. The heat-to-electricity ratio adjusting range is widened, and insufficient heat supply is reduced.

The application relates to the technical field of solar power generation, in particular to a combined cooling, heating and power (CCHP) system. A first heat storage circuit is used for collecting solar energy and storing the solar energy as low-temperature heat energy; a second heat storage circuit is coupled with the first heat storage circuit and is used for converting the low-temperature heat energy into high-temperature heat energy and storing the high-temperature heat energy; a user heat circuit is coupled with the first heat storage circuit and / or the second heat storage circuit and is used for transmitting a heat source to a user heat end; a user cold circuit is coupled with the first heat storage circuit and / or the second heat storage circuit and is used for generating a cold source and transmitting the cold source to a user cold end; and a power generation circuit is coupled with the second heat storage circuit and is used for converting the high-temperature heat energy into electric energy. Through the synergistic integration of multi-stage energy storage, hierarchical heat coupling and multi-end energy output, the application realizes efficient and full-grade cascade utilization of solar energy, significantly reduces heat loss, meets the multiple demands of users for power generation, heat supply and refrigeration, greatly improves the overall energy utilization efficiency of the system and avoids resource waste.

The invention discloses a waste heat boiler power generation optimization method for a gas-steam combined generator set, and the method comprises the steps: deeply cooling the exhaust gas temperature to below 75 DEG C through a multi-stage anti-corrosion heat exchange device, and carrying out the heat exchange through an intelligent control heat medium water circulation loop; the recycled heat is distributed to natural gas preheating, refrigeration, heat supply, air preheating and the like according to the priority in a cascade mode. According to the system, efficient deep recovery and comprehensive utilization of flue gas waste heat are achieved, the energy efficiency and economical efficiency of the unit are remarkably improved, and safe and reliable operation of the system is ensured through intelligent anti-corrosion control.

The invention discloses a condensation pressure reference control method and device for an ammonia absorption type refrigeration system. The method comprises the following steps: establishing an absolute physical reference, namely a target condensing pressure, determined by ammonia physical properties, wherein the value is uniquely determined at a given condensing temperature; the condensing pressure is detected in real time; and with approaching as a target, working condition parameters of the ammonia purification device are adjusted, so that the purity of ammonia vapor entering the evaporator is close to 100%. The device is an electronic control or self-operated machine. According to the method, the condensing pressure is increased to be an active physical reference based on the double-rigidity constraint of fixed ammonia charge and determined condensing pressure, so that the system automatically approaches to a theoretical optimal state in a wide temperature range, the rectification fault risks such as tower flooding and tower flushing are remarkably reduced, the energy efficiency is improved, and the method is suitable for industrial waste heat recovery, refrigeration houses and other scenes.

The invention provides a multi-mode combined cooling and power generation system based on efficient waste heat utilization and an operation method of the multi-mode combined cooling and power generation system. The multi-mode combined cooling and power generation system comprises an organic Rankine cycle and absorption type refrigeration cycle integrated low-grade cold energy production mode and an organic Rankine cycle and vapor compression type refrigeration cycle integrated medium-grade cold energy production mode. A high-grade cold energy production mode integrating organic Rankine cycle, absorption type refrigeration cycle and vapor compression type refrigeration cycle is adopted, in order to achieve gradient utilization of waste heat, the system considers the waste heat utilization sequence of thermodynamic cycle at the same time, and the waste heat is firstly utilized by the absorption type refrigeration cycle and then recovered by the organic Rankine cycle; waste heat is recycled through the organic Rankine cycle and then is utilized by the absorption type refrigeration cycle, and the waste heat is simultaneously recycled by the absorption type refrigeration cycle and the organic Rankine cycle after being shunted. Efficient cogeneration of cold electricity is achieved through gradient utilization of waste heat and heat-work coupling between circulation, multiple possibilities of a waste heat utilization path are considered, and the waste heat recovery rate is increased.

The invention relates to the technical field of carbon dioxide capture, and discloses a carbon dioxide capture system and a method for reducing energy consumption in the carbon dioxide capture process. The system comprises an absorption tower, a rich and lean liquid heat exchanger, a regeneration tower, a waste heat recovery refrigeration device, a regeneration gas cooler, a regeneration gas separator and a compressor which are sequentially arranged in the circulation direction of raw material flue gas containing CO2, wherein the absorption tower is used for enabling raw material flue gas containing CO2 to be in contact with an absorbent to obtain a rich solution; the lean and rich solution heat exchanger is used for carrying out heat exchange on the rich solution and a lean solution obtained at the bottom of a regeneration tower; and the waste heat recovery refrigerating device is used for carrying out waste heat recovery on regenerated gas at the top of the regeneration tower and uncondensed gas at the outlet of the compressor. According to the system, the waste heat recovery refrigerating device is adopted, so that power consumption and absorbent loss of the carbon dioxide system are reduced.

The invention discloses a gas turbine combined cycle cooling, heating, power and hydrogen combined supply system coupling high-temperature heat storage and phase change cold storage and an operation control method thereof, the system is composed of a power plant inner side subsystem and an outer side subsystem, the power plant inner side subsystem comprises a gas turbine combined cycle unit, a high-temperature heat storage unit and a steam collector, the split-flow heat storage of high-temperature exhaust smoke heat and the flexible allocation of high-temperature steam are realized; the system comprises a hydrogen production unit and a heat and cold supply pipe network, and is combined with a steam turbine, an absorption refrigeration device, a mechanical refrigeration device and a phase change cold storage device, so that efficient supply and gradient utilization in a multi-energy form are realized. The operation control method provided by the invention comprises the steps of parameter acquisition and demand prediction, steam distribution regulation and control, heat storage and heat release management, hydrogen production load regulation and waste heat coupling utilization, cold and heat energy regulation, cold storage balance and the like, and is assisted by layered optimization control of an energy management platform; and multi-energy cooperative supply and flexible peak regulation of electric power, heat energy, cold energy and hydrogen energy can be achieved.

The invention belongs to the technical field of building energy management and energy storage, and provides a building load transfer system and method based on graded phase change heat storage, in an energy storage stage, high-temperature hot water prepared by an electric heating device enters a graded phase change energy storage subsystem through a pipeline; in the heat supply stage, building return water is heated by the high-temperature energy storage unit and the low-temperature energy storage unit and then fed into the heat supply tail end; in the refrigeration stage, hot water output by the high-temperature energy storage unit drives the ammonia water absorption refrigerator to generate chilled water, then cooling is conducted through the heat supply tail end, and the high-temperature energy storage unit and the low-temperature energy storage unit are innovatively arranged in series; during energy storage, hot water sequentially releases heat according to the temperature from high to low, and return water sequentially absorbs heat according to the temperature from low to high during energy release and heat supply, so that temperature alignment and gradient utilization of heat energy are realized, loss in the heat transfer process is greatly reduced, and the overall energy utilization efficiency is remarkably higher than that of a traditional single-stage heat storage system; and the application of the phase change energy storage technology in building energy storage and energy utilization is promoted.

The invention discloses a novel compression-injection-absorption thermal coupling type refrigerating system and device, a solution loop between a generator and an absorber is driven by high-temperature waste heat of an outlet of a compressor, and a low-pressure-stage compression function is realized through a solution pump. A compressor is a key component in an electrically-driven compression refrigeration cycle, a two-stage compression refrigeration system is generally adopted in a refrigeration cycle with a lower evaporation temperature in order to reduce the evaporation pressure of a refrigerant and improve the cooling capacity grade, but in the refrigeration cycle, the negative pressure degree of a low-pressure stage is higher, so that the safe and economical operation of the two-stage compression refrigeration system is not facilitated. According to the system and the device, a compression type refrigeration cycle and an absorption type refrigeration cycle are coupled in a cascade serial connection mode through the ejector, and a novel compression-ejection-absorption thermal coupling type refrigeration cycle is constructed; and low-voltage-stage power consumption can be reduced, the operation reliability of low-voltage-stage equipment can be improved, and wide popularization and application prospects are achieved.

According to the marine adsorption type refrigerating device, a six-valve circulation technology is adopted, continuous cold supply to a cold using unit is achieved, high-temperature heat conduction oil for heat storage can be used as a heat source, the living quality on a ship can be flexibly and conveniently improved, and when a cold storage technology of a cold storage device is adopted, flexible adjustment can be conducted according to the low-load and large-load-change operation working conditions; the adsorption type refrigeration device is mostly in a running state close to full load in the working period, the service life of the device can be prolonged, and the expected social and environment-friendly benefits are obvious.

This invention relates to the field of liquid compressed carbon dioxide energy storage technology, specifically to a liquid compressed carbon dioxide energy storage system coupled with a high-temperature heat pump and a lithium bromide refrigeration unit. The system includes: a compressed carbon dioxide energy storage subsystem for storing and releasing electrical energy within the energy storage system; a high-temperature heat pump unit as an auxiliary energy storage device; a portion of the high-grade heat energy in a second heat storage tank being used by the lithium bromide refrigeration unit to generate cooling capacity during the energy release phase; another portion of the high-grade heat energy in the second heat storage tank being used by a hot water reheater to heat the stored hot water in the compressed carbon dioxide energy storage subsystem; and a lithium bromide refrigeration unit generating cooling capacity to liquefy low-pressure carbon dioxide in the compressed carbon dioxide energy storage subsystem and store the liquefied low-pressure carbon dioxide in a low-pressure carbon dioxide storage tank. By generating cooling energy through the aforementioned lithium bromide refrigeration unit, the liquefaction of low-pressure carbon dioxide in the compressed carbon dioxide energy storage subsystem is achieved, thereby solving the problem of large gas storage chamber volume in existing technologies.

The application provides a composite adsorption medium and an adsorption bed based on the composite adsorption medium, and a preparation method of the composite adsorption medium is as follows: S1, silica gel, metal organic framework material and a binder are uniformly mixed according to a mass ratio of 1:1:0.15 to obtain a mixed powder; S2, deionized water is heated to 60 DEG C, the mixed powder is added, and stirring is uniformly carried out, and then standing and cooling to room temperature are carried out to obtain a mixed solution; S3, a macroporous scale porous medium is prepared and pretreated to remove surface oxides; S4, the pretreated macroporous scale porous medium is immersed in the mixed solution, liquid accumulation in the pores is blown off, and the immersion is repeated for multiple times; and S5, drying treatment is carried out after the immersion. The application also provides the adsorption bed based on the composite adsorption medium, the adsorption bed has higher adsorption capacity, heat and mass transfer effects are better, and structural stability is good, and the adsorption bed can be applied to an adsorption refrigeration or dehumidification system, and system performance can be greatly improved.

To provide a condenser that exercises the effect of stabilizing the cooling of water, and a chemical heat storage system.SOLUTION: A condenser 41 comprises: a condensing part 44 for condensing steam WV2; a cooling part 45 located on the lower side of the condensing part 44, and for cooling water, and a housing part 46 for housing the water cooled by the cooling part 45. The condensing part 44 and the cooling part 45 comprise a first flow passage 42 for circulating a cooling medium CM. The cooling part 45 comprising a second flow passage 45a for circulating the water W2. The second flow passage 45a is arranged so as to be adjacent to the first flow passage 42. The housing part 46 comprises a bottom wall part 46a and a peripheral wall part 46b. The peripheral wall part 46b comprises the cooling part 45.SELECTED DRAWING: Figure 4

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 application belongs to the technical field of hydrogen energy comprehensive utilization, and particularly discloses an electricity, cold and heat multi-combined supply comprehensive utilization system and method based on hydrogen energy, which comprises a hydrogen fuel cell system, a heat exchanger, a hydrogen internal combustion engine, a flue gas hot water type lithium bromide unit and a ground source heat pump system. Cooling water of the hydrogen fuel cell system cooling pipe network exchanges heat with first circulating medium of the heat system in the heat exchanger, high-temperature flue gas of the hydrogen internal combustion engine flue gas pipe network and cylinder jacket water of the cylinder jacket water pipe network exchange heat with the first circulating medium in the flue gas hot water type lithium bromide unit, and the second circulating medium of the cold system is cooled in the flue gas hot water type lithium bromide unit. The ground source heat pump system comprises a ground source heat pump unit, and is used for exchanging heat between low-temperature circulating water of the ground source heat pump rock-soil side and the first circulating medium. The application fully utilizes hydrogen energy, uses waste heat generated by hydrogen fuel cell and hydrogen internal combustion engine to generate electricity, heating and cooling, and realizes hydrogen energy cascade utilization.

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.

Provided herein are systems and methods for recovering solvent from a contaminated effluent. In some embodiments, a system includes: a dilution entrochemical array (ECA) comprising at least one entrochemical amplifier (EA) unit configured to concentrate a first contaminated effluent and dilute a first draw solution; a distillation ECA fluidically coupled to the dilution ECA, the distillation ECA comprising at least two EA units configured to separate the first diluted draw solution into a distilled solvent and the first draw solution, concentrate a second contaminated effluent, and dilute a second draw solution; and a regeneration ECA fluidically coupled to the distillation ECA, the regeneration ECA comprising at least two EA units configured to concentrate a third contaminated effluent and the second diluted draw solution and dilute a third draw solution. The distilled solvent is recovered from the contaminated effluent.

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.

The utility model relates to the technical field of polycrystalline silicon, in particular to a polycrystalline silicon reduction furnace chassis cooling system, which comprises a refrigerator, a cooling device and a cooling device, one end of the circulating water tank is connected with the refrigerator, the other end of the circulating water tank is connected with the reduction furnace chassis water inlet header pipe, cooling water carrying waste heat in the reduction furnace chassis water return header pipe is divided into multiple branches, then the cooling water carrying waste heat on the branches is cooled through the refrigerator, and the cooling efficiency of the cooling water is improved.

The utility model relates to the technical field of melon seed processing equipment, and discloses a peeled melon seed cooling device which comprises a cooling frame, a cooling bin is arranged at the bottom of the cooling frame, a cooling fan is arranged on one side of the cooling bin, and a filter screen is arranged at the inlet end, located in the cooling bin, of the cooling fan. The cooling frame is communicated with the cooling bin through a supporting net plate arranged at the bottom of the cooling frame. A material turning plate is arranged in the cooling frame in a sliding manner; according to the melon seed cooling device, the situation that melon seeds and peeled peel scraps splash everywhere in the cooling process can be prevented, and meanwhile the cooling efficiency is improved.

The invention discloses a natural gas and hydrogen liquefaction method and system with ultralow energy consumption and carbon emission. An ammonia water absorption type refrigeration cycle and an automatic cascade absorption type refrigeration cycle are adopted to replace an electric drive compression type / expansion type pre-cooling cycle, and wide-temperature-zone and deep pre-cooling cold supply is provided for the liquefaction process in a cascade cooling mode. The ammonia water absorption refrigeration cycle provides pre-cooling cold energy for a high-temperature area, and the ACAR cycle provides pre-cooling cold energy for a low-temperature area; and the two can be driven by low-grade waste heat discharged by a liquefaction factory, so that the dependence of the liquefaction system on high-grade electric energy is obviously reduced. Based on the condensation heat temperature slippage effect of the non-azeotropic mixed working medium and the heat pump principle, the configuration of ACAR circulation and ammonia water circulation can be improved, so that the utilization efficiency of low-grade heat energy is improved, and the pump power consumption in the solution boosting process is reduced. As the number of high-speed moving parts in the system is reduced, the operation stability is improved, the service life is prolonged, and the maintenance cost is correspondingly reduced.

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 invention discloses a power generation system and a power generation method integrating a fourth-generation nuclear reactor and fused salt energy storage, and the power generation system integrating the fourth-generation nuclear reactor and the fused salt energy storage comprises a fused salt energy storage system which comprises a circulating heat storage working medium which is fluoride fused salt; the nuclear energy side power generation system comprises a fourth-generation nuclear reactor, a first power generation device and a second power generation device, supercritical carbon dioxide serves as a heat absorption medium of the fourth-generation nuclear reactor and flows out of a main flow path and a branch flow path, the main flow path supplies the supercritical carbon dioxide into the first power generation device, and the branch flow path supplies the supercritical carbon dioxide into the second power generation device. And supercritical carbon dioxide is introduced into the fused salt energy storage system for heat exchange through the branch flow path. Therefore, the temperature upper limit of a traditional circulating medium can be broken through, the energy conversion efficiency is improved, and meanwhile under the condition that the nuclear energy side power generation system stops running, high-temperature heat stored by the fused salt energy storage system can still maintain running.

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 application provides a heat management method and an absorption type combined cooling and heating system, and comprises the following steps: detecting the ambient temperature in a factory building; if the ambient temperature is less than a first temperature threshold, controlling a first three-way valve, a second three-way valve, a third three-way valve, a fourth three-way valve and a four-way valve to switch to a heating switch state respectively, so that the waste heat generated by auxiliary equipment and steam waste heat are used as a heating source for driving a heating cycle, and the heating cycle is completed through a circulating working medium; if the ambient temperature is greater than a second temperature threshold, controlling the first three-way valve, the second three-way valve, the third three-way valve, the fourth three-way valve and the four-way valve to switch to a cooling switch state respectively, so that the steam waste gas and heat absorbed from cooling water in a cooling cycle are used as a heating source for driving the cooling cycle, and the cooling cycle is completed through the circulating working medium. The steam waste gas, a hot water production and distribution system and a cooling water system are integrated as a whole, and the energy utilization rate is improved by switching the operation mode of the whole system.