CN103266926A - Device and method for achieving cold and hot electricity multi-generation by utilizing middle-and-low-temperature exhaust heat - Google Patents
Device and method for achieving cold and hot electricity multi-generation by utilizing middle-and-low-temperature exhaust heat Download PDFInfo
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- CN103266926A CN103266926A CN2013101900135A CN201310190013A CN103266926A CN 103266926 A CN103266926 A CN 103266926A CN 2013101900135 A CN2013101900135 A CN 2013101900135A CN 201310190013 A CN201310190013 A CN 201310190013A CN 103266926 A CN103266926 A CN 103266926A
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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
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Abstract
The invention discloses a device for achieving cold and hot electricity multi-generation by utilizing middle-and-low-temperature exhaust heat. The device is characterized by comprising a vapor generator (1), a turbine or an expansion machine (2), a generator (3), a hot water heat exchanger (4), a solution heater (5), a condenser (6), a liquid storage tank (7), a working medium pump (8), a solution reheater (9), and a solution dehumidification air-conditioner unit (10). The system comprises three loops, respectively, a heat flow loop, a power circulation loop and a solution loop. Heat flow in the heat flow loop flows into the vapor generator (1) and then enters the solution reheater (9). The device achieves efficient recovery and gradient utilization on the middle-and-low-temperature exhaust heat, and comprehensive utilization efficiency is high.
Description
Technical field
The invention belongs to energy recovery efficient technique of rainwater utilization scope, is the multi-joint supplier's method of cool and thermal power and device that a kind of middle-low temperature heat used heat etc. reclaims comprehensive cascade utilization, is specifically related to the system of middle-low temperature heat used heat comprehensive utilization.
Background technique
At present in the AND ENERGY RESOURCES CONSUMPTION IN CHINA structure, the industrial energy consumption accounting reaches about 70%, and this 50-65% wherein all is converted into carrier difference, waste heat used heat that temperature is different etc.Wherein the quantity of middle-low temperature heat is huge, in industry production processes such as iron and steel, cement, truth, glass, pottery sugaring, produced a large amount of low temperature exhaust heats, comprise hot water, low-grade flue gas and steam etc., these amount of heat are big, grade is low, substantially can not be by the production process recycling.And needing the process gas of certain quality in some industry production process, it is produced needs drying apparatus etc. in the process.And the organic Rankine circulating technology is the power cycle technology of low-temperature heat source in a kind of can effectively the utilization, utilizes decompressor or steam turbine that the heat of drawing from thermal source is converted into power, drives generator for electricity generation.Working medium after overexpansion directly enters condenser usually and carries out condensation, becomes liquid then, and the medium that directly is condensed of condenser heat is wherein taken away and discharged, and this mode means waste to a certain extent for the energy.And the liquid desiccant air conditioning technology will realize continuous operation, need regenerate to solution, and need the thermal source of uniform temperature to drive in the regenerative process.The wider characteristics of solution regeneration temperature scope in view of this kind air-conditioning technical, the heat of the working medium after expanding is used for the regeneration of solution, realize the running of liquid desiccant air conditioning unit, the output of dehumidifying with refrigeration is provided, can be used for the refrigeration of plant area and the functions such as drying of process gas.This kind technology can realize the high efficiente callback of middle-low temperature heat used heat and cascade utilization, promotes the effect of energy-saving and emission-reduction.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide the device of a kind of refrigeration of efficiently utilizing middle-low temperature heat used heat, generating, dehumidifying, heat supply, can reclaim total low temperature exhaust heat used heat efficiently, and be used for generating and realize the output of cold and hot amount, realize cold-hot electirc linking.
Technological scheme: for solving the problems of the technologies described above, the invention provides a kind of device that utilizes middle-low temperature heat used heat to realize the multi-joint confession of cool and thermal power, this device comprises steam generator, steam turbine or decompressor, generator, hot water heat exchanger, solution heater, condenser, liquid container, working medium pump, solution reheater, liquid desiccant air conditioning unit;
This system comprises three loops, hot-fluid loop, power cycle loop and solution loop;
Wherein, hot-fluid is introduced in the steam generator in the hot-fluid loop, enters afterwards in the solution reheater again;
In the power cycle working medium loop, the working medium side outlet end of steam generator links to each other with the entrance point of steam turbine or decompressor, the axle head of steam turbine or decompressor links to each other with the axle head of generator, the outlet end of steam turbine or decompressor links to each other with the entrance point of hot water heat exchanger and the entrance point of solution heater respectively, the sender property outlet end of hot water heat exchanger and solution heater links to each other with the entrance point of condenser respectively, the outlet end of condenser links to each other with the entrance point of liquid container, the outlet end of liquid container links to each other with the entrance point of working medium pump, and the outlet end of working medium pump links to each other with the working medium side entrance point of steam generator;
In the solution loop, the solution inlet port end of solution heater links to each other with the taphole end of liquid desiccant air conditioning unit, the taphole end of solution heater links to each other respectively with the entrance point of liquid desiccant air conditioning unit with the solution reheater, and the taphole end of solution reheater links to each other with the solution inlet port end of liquid desiccant air conditioning unit.
The present invention also provides a kind of method of utilizing middle-low temperature heat used heat to realize the multi-joint confession of cool and thermal power, this method comprises the steps: that the heat in middle-low temperature heat or the used heat passes to power cycle working medium in steam generator, makes it the temperature rising and becomes steam; The working substance steam that produces enters steam turbine or decompressor, makes it externally acting drive generator for electricity generation, the output electric energy; By switch valve, make the exhaust of steam turbine or decompressor enter hot water heat exchanger, realize producing of hot water, be used for domestic hot-water or heating output; Perhaps make the exhaust of steam turbine or decompressor enter solution heater, enter again and make the solution temperature rising in the solution reheater, enter the output of drive train realization cold in the liquid desiccant air conditioning unit afterwards.
Beneficial effect:
1. this device carries out high efficiente callback and cascade utilization to middle-low temperature heat used heat, the comprehensive utilization ratio height;
2. the binding soln dehumidifier/air-conditioning system reclaims reasonable utilization to the high temperature section heat of condensation that should emit, and realizes the output of system dehumidification and cold;
3. the waste heat used heat after can effectively utilizing heat of condensation and flowing through steam generator is realized heat supply water and winter heating.
Description of drawings
Fig. 1 is device and the structural representation of the embodiment of the invention.
Wherein have: steam generator 1, steam turbine or decompressor 2, generator 3, hot water heat exchanger 4, solution heater 5, condenser 6, liquid container 7, working medium pump 8, solution reheater 9, liquid desiccant air conditioning unit 10.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
The present invention utilizes steam generator and solution reheater or hot water reheater to realize recovery to middle-low temperature heat used heat.In the organic Rankine power cycle, acting working medium becomes gas absorb heat in steam generator after, and pushing turbine or decompressor acting drive generator output electric energy.Working medium after the expansion is earlier through solution heater or hot water heat exchanger, and the condenser of flowing through the then liquefy after the medium condensation that is condensed flows to liquid container afterwards and is pressed and delivered to steam generator by working medium pump, forms complete power cycle.In the liquid desiccant air conditioning unit, utilize the organic Rankine cycle fluid after expansion with heat come heat dilute solution, and the solution reheater of flowing through further promotes the dilute solution temperature.Heated dilute solution enters and realizes regeneration and dehumidifying in the liquid desiccant air conditioning unit, realizes the output of refrigerating capacity and dehumidification function; Also can utilize the organic Rankine cycle fluid after expansion with heat obtain the hot water of uniform temperature, and further carry out heat exchange with waste heat used heat etc., be used to provide domestic hot-water and heat supply heating.This system is by effectively reclaiming and cascade utilization middle-low temperature heat used heat etc., high temperature section is used for the organic Rankine circulating generation, working medium after expanding still has a certain amount of low-temperature heat quantity, this part heat energy of recycling is being used for the solution regeneration of solution dehumidifying air-conditioning system, and perhaps direct heat transfer produces certain hot water for realizing domestic hot-water or heat supply heating function.
Cooling medium in the described condenser can be air or water, the thermal source of condensed water as low-temperature water heating can be used when adopting water.
This device adopts the low boiling organic working medium to absorb the heat of middle-low temperature heat used heat resource and becomes the working substance steam driving steam turbine or decompressor drive generator for electricity generation, the output electric energy.And the working medium heat after utilization is expanded and used heat etc. heat realization regeneration to solution simultaneously, and the driving solution dehumidifying air-conditioning system obtains certain cold and dehumidification function; Also can directly utilize hot water heat exchanger to produce hot water, provide heat energy output to be used for hot water supply and Winter heat supply heating.
A kind of device that utilizes middle-low temperature heat used heat to realize the multi-joint confession of cool and thermal power provided by the invention, this device comprises steam generator 1, steam turbine or decompressor 2, generator 3, hot water heat exchanger 4, solution heater 5, condenser 6, liquid container 7, working medium pump 8, solution reheater 9, liquid desiccant air conditioning unit 10;
This system comprises three loops, hot-fluid loop, power cycle loop and solution loop;
Wherein, hot-fluid is introduced in the steam generator 1 in the hot-fluid loop, enters afterwards in the solution reheater 9 again;
In the power cycle working medium loop, the working medium side outlet end of steam generator 1 links to each other with the entrance point of steam turbine or decompressor 2, the axle head of steam turbine or decompressor 2 links to each other with the axle head of generator 3, the outlet end of steam turbine or decompressor 2 links to each other with the entrance point of hot water heat exchanger 4 and the entrance point of solution heater 5 respectively, the sender property outlet end of hot water heat exchanger 4 and solution heater 5 links to each other with the entrance point of condenser 6 respectively, the outlet end of condenser 6 links to each other with the entrance point of liquid container 7, the outlet end of liquid container 7 links to each other with the entrance point of working medium pump 8, and the outlet end of working medium pump 8 links to each other with the working medium side entrance point of steam generator 1;
In the solution loop, the solution inlet port end of solution heater 5 links to each other with the taphole end of liquid desiccant air conditioning unit 10, the taphole end of solution heater 5 links to each other respectively with the entrance point of liquid desiccant air conditioning unit 10 with solution reheater 9, and the taphole end of solution reheater 9 links to each other with the solution inlet port end of liquid desiccant air conditioning unit 10.
The present invention also provides a kind of method of utilizing middle-low temperature heat used heat to realize the multi-joint confession of cool and thermal power, this method comprises the steps: that the heat in middle-low temperature heat or the used heat passes to power cycle working medium in steam generator 1, makes it the temperature rising and becomes steam; The working substance steam that produces enters steam turbine or decompressor 2, makes it externally acting and drives generator 3 generatings, output electric energy; By switch valve, make the exhaust of steam turbine or decompressor 2 enter hot water heat exchanger 4, realize producing of hot water, be used for domestic hot-water or heating output; Perhaps make the exhaust of steam turbine or decompressor 2 enter solution heater 5, enter again and make the solution temperature rising in the solution reheater 9, enter the output of drive train realization cold in the liquid desiccant air conditioning unit 10 afterwards.
Embodiment 1: as shown in Figure 1, a kind of method and device that utilizes middle-low temperature heat used heat to realize the multi-joint confession of cool and thermal power, mainly by steam generator 1, steam turbine or decompressor 2, generator 3, hot water heat exchanger 4, solution heater 5, condenser 6, liquid container 7, working medium pump 8, solution reheater 9, liquid desiccant air conditioning unit 10 is formed.The working medium side outlet of described steam generator 1 is connected with described steam turbine or decompressor 2, described steam turbine or decompressor 2 are connected with described generator 3, the sender property outlet of described steam turbine or decompressor 2 is connected with described hot water heat exchanger 4 or solution heater 5, the working medium side outlet of described hot water heat exchanger 4 or solution heater 5 is connected successively with condenser 6, liquid container 7, working medium pump 8, the outlet of last described working medium pump 8 is connected with the import of described steam generator 1, constitutes an organic Rankine power cycle.The outlet of the solution side of described solution heater 5 is connected with solution reheater 9 and is connected to the liquid desiccant air conditioning unit afterwards and puts 10 or be directly connected to liquid desiccant air conditioning unit 10.The water side outlet of described hot water heat exchanger 4 directly is connected with domestic hot-water's device or heat supply heating end equipment, perhaps carry out again being connected to corresponding device after the heat exchange by pipeline and the waste heat waste heat flux that flows through after the steam generator 1, import then is connected with domestic water supply channel or heating water return pipeline.
In the power cycle, working medium in steam generator 1 through the heating after, form high temperature and high pressure gas, enter into the acting of expanding of steam turbine or decompressor 2, drive generator 3, flow through successively then solution heater 5 or hot water heat exchanger 4, the condenser 6 of flowing through then is cooled into liquid state, be connected to liquid container 7 and working medium pump 8 afterwards, after pressurizeing, get back to steam generator 1, thereby form whole power cycle.When condenser 6, can be used the thermal source of heat of condensation as low-temperature water heating during as cooling medium with water.The solution dehumidification device part, dilute solution comes out to flow through solution heater 5 through heating from device, when the dehumidifying duty ratio can also flow through bigger the time solution reheater 9 further heated by waste heat used heat etc. give birth to after, turn back to again in the liquid desiccant air conditioning unit, realize dehumidifying and the output of freezing.
As mentioned above, although represented and explained the present invention that with reference to specific preferred embodiment it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the claims definition, can make a variety of changes in the form and details it.
Claims (2)
1. device that utilizes middle-low temperature heat used heat to realize the multi-joint confession of cool and thermal power, it is characterized in that: this device comprises steam generator (1), steam turbine or decompressor (2), generator (3), hot water heat exchanger (4), solution heater (5), condenser (6), liquid container (7), working medium pump (8), solution reheater (9), liquid desiccant air conditioning unit (10);
This system comprises three loops, hot-fluid loop, power cycle loop and solution loop;
Wherein, hot-fluid is introduced in the steam generator (1) in the hot-fluid loop, enters afterwards in the solution reheater (9) again;
In the power cycle working medium loop, the working medium side outlet end of steam generator (1) links to each other with the entrance point of steam turbine or decompressor (2), the axle head of steam turbine or decompressor (2) links to each other with the axle head of generator (3), the outlet end of steam turbine or decompressor (2) links to each other with the entrance point of hot water heat exchanger (4) and the entrance point of solution heater (5) respectively, the sender property outlet end of hot water heat exchanger (4) and solution heater (5) links to each other with the entrance point of condenser (6) respectively, the outlet end of condenser (6) links to each other with the entrance point of liquid container (7), the outlet end of liquid container (7) links to each other with the entrance point of working medium pump (8), and the outlet end of working medium pump (8) links to each other with the working medium side entrance point of steam generator (1);
In the solution loop, the solution inlet port end of solution heater (5) links to each other with the taphole end of liquid desiccant air conditioning unit (10), the taphole end of solution heater (5) links to each other respectively with the entrance point of liquid desiccant air conditioning unit (10) with solution reheater (9), and the taphole end of solution reheater (9) links to each other with the solution inlet port end of liquid desiccant air conditioning unit (10).
2. multi-joint supplier's method of cool and thermal power of utilizing middle-low temperature heat used heat to realize the multi-joint supplying apparatus of cool and thermal power as claimed in claim 1, it is characterized in that, this method comprises the steps: that the heat in middle-low temperature heat or the used heat passes to power cycle working medium in steam generator (1), makes it the temperature rising and becomes steam; The working substance steam that produces enters steam turbine or decompressor (2), makes it externally acting and drives generator (3) generating, the output electric energy; By switch valve, make the exhaust of steam turbine or decompressor (2) enter hot water heat exchanger (4), realize producing of hot water, be used for domestic hot-water or heating output; Perhaps make the exhaust of steam turbine or decompressor (2) enter solution heater (5), enter again and make the solution temperature rising in the solution reheater (9), enter the output of drive train realization cold in the liquid desiccant air conditioning unit (10) afterwards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310190013.5A CN103266926B (en) | 2013-05-20 | 2013-05-20 | A kind of device and method utilizing middle-low temperature heat used heat to realize cool and thermal power multiple-supplying |
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| CN201310190013.5A CN103266926B (en) | 2013-05-20 | 2013-05-20 | A kind of device and method utilizing middle-low temperature heat used heat to realize cool and thermal power multiple-supplying |
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| CN103266926A true CN103266926A (en) | 2013-08-28 |
| CN103266926B CN103266926B (en) | 2015-09-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362578A (en) * | 2013-08-05 | 2013-10-23 | 江苏万奇电器集团有限公司 | Method for comprehensively utilizing heat of low-heat waste water |
| CN103670970A (en) * | 2013-12-05 | 2014-03-26 | 东南大学 | Combined cooling, heating and power device and method for gradient utilization of solar energy |
| CN105352079A (en) * | 2015-11-24 | 2016-02-24 | 东南大学 | Independent temperature and humidity processing air conditioner system driven by low-level thermal energy |
| CN108036383A (en) * | 2018-01-12 | 2018-05-15 | 思安新能源股份有限公司 | Waste heat heat accumulation recovery system |
| CN108731296A (en) * | 2018-06-14 | 2018-11-02 | 南京林业大学 | A kind of solar power plant system coupled with air conditioning system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362578A (en) * | 2013-08-05 | 2013-10-23 | 江苏万奇电器集团有限公司 | Method for comprehensively utilizing heat of low-heat waste water |
| CN103670970A (en) * | 2013-12-05 | 2014-03-26 | 东南大学 | Combined cooling, heating and power device and method for gradient utilization of solar energy |
| CN105352079A (en) * | 2015-11-24 | 2016-02-24 | 东南大学 | Independent temperature and humidity processing air conditioner system driven by low-level thermal energy |
| CN105352079B (en) * | 2015-11-24 | 2018-02-06 | 东南大学 | A kind of humiture independent treating air-conditioning system of Lowlevel thermal energy driving |
| CN108036383A (en) * | 2018-01-12 | 2018-05-15 | 思安新能源股份有限公司 | Waste heat heat accumulation recovery system |
| CN108731296A (en) * | 2018-06-14 | 2018-11-02 | 南京林业大学 | A kind of solar power plant system coupled with air conditioning system |
| CN108731296B (en) * | 2018-06-14 | 2023-11-10 | 南京林业大学 | Solar power device system coupled with building air conditioning system |
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| CN103266926B (en) | 2015-09-09 |
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