CN112577330A - High-efficient heat recovery system of radiation source based on binary absorption working medium - Google Patents
High-efficient heat recovery system of radiation source based on binary absorption working medium Download PDFInfo
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- CN112577330A CN112577330A CN202011446366.3A CN202011446366A CN112577330A CN 112577330 A CN112577330 A CN 112577330A CN 202011446366 A CN202011446366 A CN 202011446366A CN 112577330 A CN112577330 A CN 112577330A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention discloses a radiation source high-efficiency heat recovery system based on a binary absorption working medium, which comprises an absorption module, a generation module, an evaporation module, a condensation module and a heat exchange module, wherein the five modules are spliced into an inner dome and outer dome symmetrical structure, the inner dome is composed of the generation module, the heat exchange module and the evaporation module, the inner dome is responsible for recovering low-grade radiation heat energy on the surface of a rotary kiln, the outer dome is composed of the absorption module and the condensation module, and the outer dome is used for utilizing the recovered heat energy to prepare pressurized high-temperature hot water. Meanwhile, the invention also provides a flash tank matched with the heat recovery system, and high-temperature hot water is converted into high-quality steam by the flash tank, so that the high-efficiency conversion of low-grade radiation heat energy is realized. Meanwhile, the invention also discloses a steam dragging system. The invention provides a recovery scheme with higher economical efficiency for low-grade radiation heat energy recovery, and has good decision significance.
Description
Technical Field
The invention relates to the field of heat recovery systems of industrial rotary kilns, in particular to a radiation source high-efficiency heat recovery system based on a binary absorption working medium.
Background
The industrial rotary kiln is core equipment widely applied to industries such as mineral roasting in cement and lime production, energy conservation and emission reduction in the current national advocates the industrial field, and under the large environment of industrial upgrading, various technical means are adopted in various fields to improve production efficiency and reduce product energy consumption, the rotary kiln has high firing temperature, surface heat dissipation is always a main component of firing heat consumption, and the surface radiation heat dissipation recycling of the part has high difficulty. Some producers and research institutions have also designed some means of recovery at present, and the technology is to utilize a steel pipe heat exchanger, directly prepare hot water based on the principle of radiation heat exchange and natural convection heat exchange of air, and the restriction of the technology is as follows: 1. the heat recovery efficiency is low, and only hot water with the temperature below 90 ℃ can be prepared; 2. the hot water has low application value, is usually applied to bathing and heating in plant areas at present, has low economic benefit, and is difficult to popularize.
The invention provides an effective solution for the problem, meets the economic consideration of enterprise technical innovation, and has high market value and application prospect for energy conservation and emission reduction and production cost reduction of the whole industry due to popularization.
Disclosure of Invention
The invention aims to provide a radiation source high-efficiency heat recovery system based on a binary absorption working medium, and aims to solve the problem of low-grade radiation waste heat recovery efficiency in the field of industrial rotary kilns in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a high-efficient heat recovery system of radiation source based on binary absorption working medium which characterized in that: including the inside lining in the dome structure of rotary kiln top, the dome structure upwards divide into two sections of symmetry at the arc, every section all is by the inner and outer bilayer structure that takes place the module, heat exchange module, evaporation module, absorption module, condensation module constitute, wherein constitute the inlayer that corresponds the section by taking place the module, heat exchange module, evaporation module concatenation, constitute the skin that corresponds the section by absorption module, condensation module concatenation to the condensation module in every section hugs closely the generation module, evaporation module is hugged closely to absorption module in every section, wherein:
the generating module comprises a shell pass and a lithium bromide aqueous solution spraying tube pass arranged in the shell pass, wherein a lithium bromide aqueous solution is arranged in the lithium bromide aqueous solution spraying tube pass and is sprayed into the shell pass of the generating module by the lithium bromide aqueous solution spraying tube pass, and the bottom surface of the shell pass of the generating module faces the rotary kiln and absorbs heat radiated by the rotary kiln, so that the lithium bromide aqueous solution sprayed into the shell pass of the generating module is decomposed into water vapor and a lithium bromide solution in a heat absorption manner;
the heat exchange module comprises a shell pass and a lithium bromide aqueous solution tube pass arranged in the shell pass, wherein a lithium bromide aqueous solution is arranged in the lithium bromide aqueous solution tube pass of the heat exchange module, one end of the lithium bromide aqueous solution tube pass of the heat exchange module is communicated with a lithium bromide aqueous solution spraying tube pass in the generation module, and the lithium bromide aqueous solution is additionally introduced into the lithium bromide aqueous solution spraying tube pass in the generation module through the lithium bromide aqueous solution tube pass of the heat exchange module; the shell pass of the generating module is communicated with the shell pass of the heat exchange module through a working medium pump, a lithium bromide solution obtained after decomposition in the generating module is conveyed to the shell pass of the heat exchange module through the working medium pump, and heat exchange is carried out between the lithium bromide solution tube pass of the heat exchange module and the shell pass of the heat exchange module so as to absorb the heat of the lithium bromide solution in the lithium bromide solution tube pass of the heat exchange module;
the condensation module comprises a shell pass and a cooling water pipe pass arranged in the shell pass, the bottom surface of the shell pass of the condensation module is tightly attached to the top surface of the shell pass of the generation module, a through hole is formed in the joint of the shell pass of the condensation module and the generation module, a baffle plate which can allow gas to pass through but block liquid from passing through is arranged in the through hole in a sealing mode, two ends of the cooling water pipe pass of the condensation module are respectively communicated with an external cooling water source to form cooling water circulation, and cooling water is introduced into the cooling water pipe pass of the condensation module from the external cooling water source; the water vapor obtained after decomposition in the shell pass of the generation module enters the shell pass of the condensation module through a baffle between the generation module and the shell pass of the condensation module, and forms condensed water in the shell pass of the condensation module after heat exchange with the cooling water tube pass in the condensation module;
the evaporation module comprises a shell pass and a condensed water spray tube pass arranged in the shell pass, the bottom surface of the shell pass of the evaporation module faces the rotary kiln and absorbs the heat radiated by the rotary kiln, the shell pass of the condensation module is communicated with the shell pass of the evaporation module through a working medium pump, and the shell pass of the evaporation module is communicated with the condensed water spray tube pass of the evaporation module through another working medium pump; condensed water in the shell pass of the condensation module is pumped into the shell pass of the evaporation module through a corresponding working medium pump, then is pumped into the condensed water spray tube pass through another working medium pump between the shell pass of the evaporation module and the condensed water spray tube pass, and is sprayed into the shell pass of the evaporation module through the condensed water spray tube pass to form atomized water drops, so that self-spray circulation is realized, and the atomized water drops absorb heat in the shell pass of the evaporation module to form water vapor;
the absorption module comprises a shell pass, a heat recovery water tube pass and a lithium bromide solution spray tube pass, the heat recovery water tube pass and the lithium bromide solution spray tube pass are arranged in the shell pass, the bottom surface of the shell pass of the absorption module is tightly attached to the top surface of the shell pass of the evaporation module, a through hole is formed in the joint of the shell pass of the absorption module and the shell pass of the evaporation module, a baffle plate which can allow gas to pass through but block liquid to pass through is arranged in the through hole in a blocking mode, the shell pass of the heat exchange module is communicated with the lithium bromide solution spray tube pass in the absorption module, the shell pass of the absorption module is communicated with the other end of the lithium bromide solution tube pass of the heat exchange module, one end of the heat recovery water tube pass of the absorption module is communicated with an external water source; the water vapor formed in the shell pass of the evaporation module enters the shell pass of the absorption module through the evaporation module and the baffle between the shell passes of the absorption module, the lithium bromide solution which absorbs heat in the shell pass of the heat exchange module is introduced into the lithium bromide solution spraying tube pass of the absorption module and is sprayed into the shell pass of the absorption module by the lithium bromide solution spraying tube pass, the lithium bromide solution which is sprayed in the shell pass of the absorption module absorbs the water vapor from the shell pass of the evaporation module to form a lithium bromide aqueous solution, the heat is released in the absorption process, the released heat is absorbed by the heat recovery water introduced in the heat recovery water tube pass of the absorption module to form hot water, the formed hot water is output outwards by the heat recovery water tube pass, and meanwhile the lithium bromide aqueous solution formed in the shell pass of the absorption module is supplemented to be introduced into the lithium bromide aqueous solution tube pass of the heat exchange module.
The high-efficiency heat recovery system of the radiation source based on the binary absorption working medium is characterized in that: in the generation module, the heat exchange module, the evaporation module, the absorption module and the condensation module, the shell pass and the tube pass of each module are made of corrosion-resistant metal materials.
The high-efficiency heat recovery system of the radiation source based on the binary absorption working medium is characterized in that: the temperature of hot water flowing out of a heat recovery water pipe pass of the absorption module is higher than the temperature of heat radiated in the rotary kiln.
The high-efficiency heat recovery system of the radiation source based on the binary absorption working medium is characterized in that: the absorption module and the evaporation module are respectively provided with a vacuum pump, and the vacuum pump enables the absorption module and the evaporation module to keep a vacuum state in respective shell passes.
The utility model provides an utilize flash tank of high-efficient heat recovery system of radiation source based on binary absorption working medium which characterized in that: the steam-water separation device comprises a tank body, wherein a water return interface is arranged at the bottom of the tank body, a steam interface is arranged at the top of the tank body, a circulating jet flow spraying main pipe is arranged in the tank body, the pipe wall of the circulating jet flow spraying main pipe is connected with a plurality of atomizing nozzles, a steam-water separation grid is arranged in the tank body and positioned between the circulating jet flow spraying main pipe and the steam interface, the input end of the circulating jet flow spraying main pipe in a flash tank is connected with one end of a heat recovery water pipe pass in an absorption module so as to introduce hot water output by the heat recovery water pipe pass, the hot water is sprayed into the flash tank in a circulating spraying mode through the circulating jet flow spraying main pipe and the atomizing nozzles, the hot water is subjected to gas-liquid separation after being flashed in the flash tank, separated.
The utility model provides an utilize steam drive system of high-efficient heat recovery system of radiation source and flash tank based on binary absorption working medium which characterized in that: including soft water tank, waste heat water heater, drag steam turbine, condenser, circulating pump, the delivery port of soft water tank passes through the pipeline and is connected with waste heat water heater's water inlet, waste heat water heater's delivery port pass through the pipeline with heat recovery water tube side one end is connected in the absorption module, and water in the soft water tank is sent into the heat recovery water tube side of absorption module as heat recovery water after waste heat water heater heats to low temperature, the heat recovery water tube side other end and the flash tank well circulation efflux spray header's of absorption module input are connected, the steam interface of flash tank passes through the pipeline and is connected with the steam inlet of dragging the steam turbine, by the output shaft of dragging the steam turbine to outside output power, the steam outlet of dragging the steam turbine passes through the pipeline and is connected with the air inlet of condenser, the return water interface of flash tank passes through the pipeline and is connected with the water inlet of condenser, and, the water outlet of the circulating pump is connected with the water inlet of the soft water tank through a pipeline, so that a circulating loop is formed.
Compared with the prior art, the invention has the advantages that:
compared with the prior art, the invention has the following beneficial effects and advantages:
the invention is arranged on the top of the inner wall of the rotary kiln in a modularized way, the generation module and the evaporation module on the inner layer recover the radiation energy on the surface of the rotary kiln, the absorbed radiation energy is transmitted to a user side in each module on the outer layer to prepare high-quality hot water and steam, the high-efficiency recovery and quality conversion of the radiation heat energy are realized by utilizing the internal circulation of the working medium among the modules, and a steam product with higher quality than the prior art is provided, thereby realizing the high-value recovery application of the low-grade radiation heat energy.
The invention can prepare high-quality steam products, is used for application places with higher popularization value such as motor steam dragging, steam supplementing power generation and the like, widens the application approaches of radiation waste heat recovery, improves the heat recovery efficiency of the device by applying the circulating working medium, and the economic value of the high-quality steam products is the core competitiveness of the patent in the popularization of the rotary kiln industrial field.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic diagram of the structure of the generating module of the present invention.
Fig. 3 is a schematic view of the structure of the heat exchange module of the present invention.
FIG. 4 is a schematic diagram of a condensing module according to the present invention.
Fig. 5 is a schematic view of the structure of the evaporation module of the present invention.
Figure 6 is a schematic view of an absorbent module according to the present invention.
Fig. 7 is a schematic structural view of a flash tank of the present invention.
FIG. 8 is a schematic diagram of a steam drag system according to the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, a high-efficient heat recovery system of radiation source based on binary absorption working medium, including the dome structure of inside lining in the rotary kiln top, the dome structure divide into two sections of symmetry in the arc, every section all is the inside and outside bilayer structure that comprises generation module 1, heat exchange module 2, evaporation module 3, absorption module 4, condensation module 5, wherein by generation module 1, heat exchange module 2, the inlayer that corresponds the section is formed in the concatenation of evaporation module 3, by absorption module 4, the skin that corresponds the section is formed in the concatenation of condensation module 5, and generation module 1 is hugged closely to condensation module 5 in every section, evaporation module 3 is hugged closely to absorption module 4 in every section, wherein:
as shown in fig. 2, the generation module 1 includes a shell side 1.1 and a lithium bromide aqueous solution spray tube side 1.2 arranged in the shell side 1.1, a lithium bromide aqueous solution is arranged in the lithium bromide aqueous solution spray tube side 1.2, the lithium bromide aqueous solution is sprayed into the shell side 1.1 of the generation module 1 from the lithium bromide aqueous solution spray tube side 1.2, the bottom surface of the shell side 1.1 of the generation module 1 faces the rotary kiln and absorbs heat radiated by the rotary kiln, so that the lithium bromide aqueous solution sprayed into the shell side 1.1 of the generation module 1 is decomposed into steam and a lithium bromide solution by heat absorption;
as shown in fig. 3, the heat exchange module 2 includes a shell side 2.1 and a lithium bromide aqueous solution tube side 2.2 arranged in the shell side 2.1, a lithium bromide aqueous solution is arranged in the lithium bromide aqueous solution tube side 2.2 of the heat exchange module 2, one end of the lithium bromide aqueous solution tube side 2.2 of the heat exchange module 2 is communicated with the lithium bromide aqueous solution spray tube side 1.2 in the generation module 1, and the lithium bromide aqueous solution is additionally introduced into the lithium bromide aqueous solution spray tube side 1.2 in the generation module 1 from the lithium bromide aqueous solution tube side 2.2 of the heat exchange module 2; the shell side 1.1 of the generating module 1 is communicated with the shell side 2.1 of the heat exchange module 2 through a working medium pump, a lithium bromide solution obtained after decomposition in the generating module 1 is conveyed to the shell side 2.1 of the heat exchange module 2 through the working medium pump, and exchanges heat with the lithium bromide aqueous solution tube side 2.2 of the heat exchange module 2 in the shell side 2.1 of the heat exchange module 2 so as to absorb the heat of the lithium bromide aqueous solution in the lithium bromide aqueous solution tube side 2.2 of the heat exchange module 2;
as shown in fig. 4, the condensation module 5 includes a shell pass 5.1 and a cooling water tube pass 5.2 arranged in the shell pass 5.1, the bottom surface of the shell pass 5.1 of the condensation module 5 is tightly attached to the top surface of the shell pass 1.1 of the generation module 1, a through hole is arranged at the joint of the condensation module 5 and the shell pass of the generation module 1, a baffle plate which can allow gas to pass but block liquid from passing is arranged in the through hole in a blocking manner, two ends of the cooling water tube pass 5.2 of the condensation module 5 are respectively communicated with an external cooling water source to form cooling water circulation, and cooling water is introduced into the cooling water tube pass 5.2 of the condensation module 5 from the external cooling water source; the water vapor obtained after decomposition in the shell pass 1.1 of the generation module 1 enters the shell pass 5.1 of the condensation module 5 through a baffle between the shell passes 1.1 and 5.1 of the generation module 1 and the shell pass of the condensation module 2, and forms condensed water in the shell pass 5.1 of the condensation module 5 after heat exchange with the cooling water tube pass 5.2 in the condensation module 5;
as shown in fig. 5, the evaporation module 3 comprises a shell pass 3.1 and a condensed water spray tube pass 3.2 arranged in the shell pass 3.1, the bottom surface of the shell pass 3.1 of the evaporation module 3 faces the rotary kiln and absorbs the heat radiated by the rotary kiln, the shell pass 5.1 of the condensation module 5 is communicated with the shell pass 3.1 of the evaporation module 3 through a working medium pump, and the shell pass 3.1 of the evaporation module 3 is communicated with the condensed water spray tube pass 3.2 of the evaporation module 3 through another working medium pump; condensed water in a shell pass 5.1 of the condensation module 5 is pumped into a shell pass 3.1 of the evaporation module 3 through a corresponding working medium pump, then is pumped into a condensed water spray tube pass 3.2 through another working medium pump between the shell pass 3.1 of the evaporation module 3 and the condensed water spray tube pass 3.2, and is sprayed into the shell pass 3.1 of the evaporation module 3 through the condensed water spray tube pass 3.2 to form atomized water drops, so that self-spraying circulation is realized, and the atomized water drops absorb heat in the shell pass 3.1 of the evaporation module 3 to form water vapor;
as shown in fig. 6, the absorption module 4 includes a shell pass 4.1 and a heat recovery water tube pass 4.2 and a lithium bromide solution spray tube pass 4.3 arranged in the shell pass 4.1, the bottom surface of the shell pass 4.1 of the absorption module 4 is tightly attached to the top surface of the shell pass 3.1 of the evaporation module 3, a through hole is arranged at the joint of the shell passes 4.1 and the shell pass 3.1 of the absorption module 4 and the evaporation module 3, a baffle plate capable of allowing gas to pass but blocking liquid from passing is arranged in the through hole in a sealing manner, the shell pass 2.1 of the heat exchange module 2 is communicated with the lithium bromide solution spray tube pass 4.3 in the absorption module 4, the shell pass 4.1 of the absorption module 4 is communicated with the other end of the lithium bromide solution tube pass 2.2 of the heat exchange module 2, one end of the heat recovery water tube pass 4.2 of the absorption module 4 is communicated with an external water source to input heat recovery water, and the other end of the heat recovery water tube pass; the water vapor formed in the shell pass 3.1 of the evaporation module 3 enters the shell pass 4.1 of the absorption module 4 through the baffle between the evaporation module 3 and the shell passes 3.1 and 4.1 of the absorption module 4, the lithium bromide solution absorbing heat in the shell pass 2.1 of the heat exchange module 2 is introduced into the lithium bromide solution spray tube pass 4.3 of the absorption module 4, and sprayed into the shell side 4.1 of the absorption module 4 by a lithium bromide solution spraying tube side 4.3, the lithium bromide solution sprayed in the shell pass 4.1 of the absorption module 4 absorbs the water vapor from the shell pass 3.1 of the evaporation module 3 to form a lithium bromide aqueous solution, the heat is released in the absorption process, the released heat is absorbed by the heat recovery water introduced into the heat recovery water tube pass 4.2 in the absorption module 4 to form hot water, and the formed hot water is output outwards by the heat recovery water tube pass 4.2, at the same time, the lithium bromide aqueous solution formed in the shell side 4.1 of the absorption module 4 is additionally introduced into the lithium bromide aqueous solution tube side 2.2 of the heat exchange module 2.
In the invention, the shell side and the tube side of each module in the generating module 1, the heat exchange module 2, the evaporation module 3, the absorption module 4 and the condensation module 5 are made of corrosion-resistant metal materials.
In the invention, the temperature of the hot water flowing out of the heat recovery water tube pass 4.2 of the absorption module 4 is higher than the temperature of the heat radiated in the rotary kiln.
In the invention, the absorption module 4 and the evaporation module 3 are respectively provided with a vacuum pump, and the vacuum pump is used for keeping the shell passes of the absorption module 4 and the evaporation module 3 in a vacuum state.
As shown in fig. 7, a flash tank 6 of a radiation source high-efficiency heat recovery system based on a binary absorption working medium comprises a tank body 6.1, a water return port 6.2 is arranged at the bottom of the tank body 6.1, a steam port 6.3 is arranged at the top of the tank body 6.1, a circulating jet flow spraying main pipe 6.4 is arranged in the tank body 6.1, the pipe wall of the circulating jet flow spraying main pipe 6.4 is connected with a plurality of atomizing nozzles, a steam-water separation grid 6.5 is arranged between the circulating jet flow spraying main pipe 6.4 and the steam port 6.3 in the tank body 6.1, the input end of the circulating jet flow spraying main pipe 6.4 in the flash tank 6 is connected with one end of a heat recovery water pipe pass 4.2 in an absorption module 4 so as to introduce hot water output by the heat recovery water pipe pass 4.2, the hot water is sprayed into the flash tank 6 in a circulating spraying mode through the circulating jet flow spraying main pipe 6.4 and the atomizing nozzles, the hot water is separated after being flashed in the flash tank 6, the separated water is output outwards through a water return interface 6.2 of the flash tank 6.
As shown in fig. 8, a binary absorption working medium-based radiation source high-efficiency heat recovery system and a steam dragging system of a flash tank comprise a soft water tank 7, a waste heat water heater 8, a dragging steam turbine 9, a condenser 10 and a circulating pump 11, wherein a water outlet of the soft water tank 7 is connected with a water inlet of the waste heat water heater 8 through a pipeline, a water outlet of the waste heat water heater 8 is connected with one end of a heat recovery water tube pass 4.2 in an absorption module 4 through a pipeline, water in the soft water tank 7 is heated to a low temperature by the waste heat water heater 8 and then is sent into the heat recovery water tube pass 4.2 of the absorption module 4 to be used as heat recovery water, the other end of the heat recovery water tube pass 4.2 of the absorption module 4 is connected with an input end of a circulating jet flow spray main tube 6.4 in the flash tank 6, a steam interface 6.3 of the flash tank 6 is connected with a steam inlet of the dragging, the steam outlet of the dragging turbine 9 is connected with the air inlet of the condenser 10 through a pipeline, the water return interface 6.2 of the flash tank 6 is connected with the water inlet of the condenser 10 through a pipeline, the water outlet of the condenser 10 is connected with the water inlet of the circulating pump 11 through a pipeline, and the water outlet of the circulating pump 11 is connected with the water inlet of the soft water tank 7 through a pipeline. The steam product output by the steam interface 6.3 of the flash tank 6 is sent to a dragging turbine 9 to drag load or directly generate power, then enters a condenser 10 to be cooled into condensate water, the condensate water and the return water of the flash tank 6 are sent back to the soft water tank 7 through a circulating pump 11, the whole steam system is in closed-loop circulation, and softened water is saved.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (6)
1. The utility model provides a high-efficient heat recovery system of radiation source based on binary absorption working medium which characterized in that: including the inside lining in the dome structure of rotary kiln top, the dome structure upwards divide into two sections of symmetry at the arc, every section all is by the inner and outer bilayer structure that takes place the module, heat exchange module, evaporation module, absorption module, condensation module constitute, wherein constitute the inlayer that corresponds the section by taking place the module, heat exchange module, evaporation module concatenation, constitute the skin that corresponds the section by absorption module, condensation module concatenation to the condensation module in every section hugs closely the generation module, evaporation module is hugged closely to absorption module in every section, wherein:
the generating module comprises a shell pass and a lithium bromide aqueous solution spraying tube pass arranged in the shell pass, wherein a lithium bromide aqueous solution is arranged in the lithium bromide aqueous solution spraying tube pass and is sprayed into the shell pass of the generating module by the lithium bromide aqueous solution spraying tube pass, and the bottom surface of the shell pass of the generating module faces the rotary kiln and absorbs heat radiated by the rotary kiln, so that the lithium bromide aqueous solution sprayed into the shell pass of the generating module is decomposed into water vapor and a lithium bromide solution in a heat absorption manner;
the heat exchange module comprises a shell pass and a lithium bromide aqueous solution tube pass arranged in the shell pass, wherein a lithium bromide aqueous solution is arranged in the lithium bromide aqueous solution tube pass of the heat exchange module, one end of the lithium bromide aqueous solution tube pass of the heat exchange module is communicated with a lithium bromide aqueous solution spraying tube pass in the generation module, and the lithium bromide aqueous solution is additionally introduced into the lithium bromide aqueous solution spraying tube pass in the generation module through the lithium bromide aqueous solution tube pass of the heat exchange module; the shell pass of the generating module is communicated with the shell pass of the heat exchange module through a working medium pump, a lithium bromide solution obtained after decomposition in the generating module is conveyed to the shell pass of the heat exchange module through the working medium pump, and heat exchange is carried out between the lithium bromide solution tube pass of the heat exchange module and the shell pass of the heat exchange module so as to absorb the heat of the lithium bromide solution in the lithium bromide solution tube pass of the heat exchange module;
the condensation module comprises a shell pass and a cooling water pipe pass arranged in the shell pass, the bottom surface of the shell pass of the condensation module is tightly attached to the top surface of the shell pass of the generation module, a through hole is formed in the joint of the shell pass of the condensation module and the generation module, a baffle plate which can allow gas to pass through but block liquid from passing through is arranged in the through hole in a sealing mode, two ends of the cooling water pipe pass of the condensation module are respectively communicated with an external cooling water source to form cooling water circulation, and cooling water is introduced into the cooling water pipe pass of the condensation module from the external cooling water source; the water vapor obtained after decomposition in the shell pass of the generation module enters the shell pass of the condensation module through a baffle between the generation module and the shell pass of the condensation module, and forms condensed water in the shell pass of the condensation module after heat exchange with the cooling water tube pass in the condensation module;
the evaporation module comprises a shell pass and a condensed water spray tube pass arranged in the shell pass, the bottom surface of the shell pass of the evaporation module faces the rotary kiln and absorbs the heat radiated by the rotary kiln, the shell pass of the condensation module is communicated with the shell pass of the evaporation module through a working medium pump, and the shell pass of the evaporation module is communicated with the condensed water spray tube pass of the evaporation module through another working medium pump; condensed water in the shell pass of the condensation module is pumped into the shell pass of the evaporation module through a corresponding working medium pump, then is pumped into the condensed water spray tube pass through another working medium pump between the shell pass of the evaporation module and the condensed water spray tube pass, and is sprayed into the shell pass of the evaporation module through the condensed water spray tube pass to form atomized water drops, so that self-spray circulation is realized, and the atomized water drops absorb heat in the shell pass of the evaporation module to form water vapor;
the absorption module comprises a shell pass, a heat recovery water tube pass and a lithium bromide solution spray tube pass, the heat recovery water tube pass and the lithium bromide solution spray tube pass are arranged in the shell pass, the bottom surface of the shell pass of the absorption module is tightly attached to the top surface of the shell pass of the evaporation module, a through hole is formed in the joint of the shell pass of the absorption module and the shell pass of the evaporation module, a baffle plate which can allow gas to pass through but block liquid to pass through is arranged in the through hole in a blocking mode, the shell pass of the heat exchange module is communicated with the lithium bromide solution spray tube pass in the absorption module, the shell pass of the absorption module is communicated with the other end of the lithium bromide solution tube pass of the heat exchange module, one end of the heat recovery water tube pass of the absorption module is communicated with an external water source; the water vapor formed in the shell pass of the evaporation module enters the shell pass of the absorption module through the evaporation module and the baffle between the shell passes of the absorption module, the lithium bromide solution which absorbs heat in the shell pass of the heat exchange module is introduced into the lithium bromide solution spraying tube pass of the absorption module and is sprayed into the shell pass of the absorption module by the lithium bromide solution spraying tube pass, the lithium bromide solution which is sprayed in the shell pass of the absorption module absorbs the water vapor from the shell pass of the evaporation module to form a lithium bromide aqueous solution, the heat is released in the absorption process, the released heat is absorbed by the heat recovery water introduced in the heat recovery water tube pass of the absorption module to form hot water, the formed hot water is output outwards by the heat recovery water tube pass, and meanwhile the lithium bromide aqueous solution formed in the shell pass of the absorption module is supplemented to be introduced into the lithium bromide aqueous solution tube pass of the heat exchange module.
2. The efficient heat recovery system of the radiation source based on the binary absorption working medium as claimed in claim 1, wherein: in the generation module, the heat exchange module, the evaporation module, the absorption module and the condensation module, the shell pass and the tube pass of each module are made of corrosion-resistant metal materials.
3. The efficient heat recovery system of the radiation source based on the binary absorption working medium as claimed in claim 1, wherein: the temperature of hot water flowing out of a heat recovery water pipe pass of the absorption module is higher than the temperature of heat radiated in the rotary kiln.
4. The efficient heat recovery system of the radiation source based on the binary absorption working medium as claimed in claim 1, wherein: the absorption module and the evaporation module are respectively provided with a vacuum pump, and the vacuum pump enables the absorption module and the evaporation module to keep a vacuum state in respective shell passes.
5. A flash tank for a radiation source high efficiency heat recovery system based on binary absorption working medium, which utilizes the binary absorption working medium as the claim 1, is characterized in that: the steam-water separation device comprises a tank body, wherein a water return interface is arranged at the bottom of the tank body, a steam interface is arranged at the top of the tank body, a circulating jet flow spraying main pipe is arranged in the tank body, the pipe wall of the circulating jet flow spraying main pipe is connected with a plurality of atomizing nozzles, a steam-water separation grid is arranged in the tank body and positioned between the circulating jet flow spraying main pipe and the steam interface, the input end of the circulating jet flow spraying main pipe in a flash tank is connected with one end of a heat recovery water pipe pass in an absorption module so as to introduce hot water output by the heat recovery water pipe pass, the hot water is sprayed into the flash tank in a circulating spraying mode through the circulating jet flow spraying main pipe and the atomizing nozzles, the hot water is subjected to gas-liquid separation after being flashed in the flash tank, separated.
6. A steam-driven system utilizing the binary absorbing working medium-based radiation source high-efficiency heat recovery system of claim 1 and the flash tank of claim 5, characterized in that: including soft water tank, waste heat water heater, drag steam turbine, condenser, circulating pump, the delivery port of soft water tank passes through the pipeline and is connected with waste heat water heater's water inlet, waste heat water heater's delivery port pass through the pipeline with heat recovery water tube side one end is connected in the absorption module, and water in the soft water tank is sent into the heat recovery water tube side of absorption module as heat recovery water after waste heat water heater heats to low temperature, the heat recovery water tube side other end and the flash tank well circulation efflux spray header's of absorption module input are connected, the steam interface of flash tank passes through the pipeline and is connected with the steam inlet of dragging the steam turbine, by the output shaft of dragging the steam turbine to outside output power, the steam outlet of dragging the steam turbine passes through the pipeline and is connected with the air inlet of condenser, the return water interface of flash tank passes through the pipeline and is connected with the water inlet of condenser, and, the water outlet of the circulating pump is connected with the water inlet of the soft water tank through a pipeline, so that a circulating loop is formed.
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| US3893506A (en) * | 1971-09-17 | 1975-07-08 | Nikolaus Laing | Device for the absorption and emission of heat |
| KR20140081943A (en) * | 2012-12-20 | 2014-07-02 | 한국지역난방공사 | District heating system including absorption heat pump for increasing production amount of electricity and heat |
| CN104482772A (en) * | 2014-12-09 | 2015-04-01 | 浙江大学 | Vertical sintering waste heat drive cooling heating and power generation system and method thereof |
| CN207515549U (en) * | 2017-11-15 | 2018-06-19 | 四川川润股份有限公司 | A kind of rotary kiln radiates residual neat recovering system |
| CN110425869A (en) * | 2019-08-14 | 2019-11-08 | 山东方亚地源热泵空调技术有限公司 | Ring applies the heat recovery system and selecting method in rotary kiln wall surface |
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2020
- 2020-12-09 CN CN202011446366.3A patent/CN112577330A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893506A (en) * | 1971-09-17 | 1975-07-08 | Nikolaus Laing | Device for the absorption and emission of heat |
| KR20140081943A (en) * | 2012-12-20 | 2014-07-02 | 한국지역난방공사 | District heating system including absorption heat pump for increasing production amount of electricity and heat |
| CN104482772A (en) * | 2014-12-09 | 2015-04-01 | 浙江大学 | Vertical sintering waste heat drive cooling heating and power generation system and method thereof |
| CN207515549U (en) * | 2017-11-15 | 2018-06-19 | 四川川润股份有限公司 | A kind of rotary kiln radiates residual neat recovering system |
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