CN201203297Y - Solar auxiliary direct combustion type cold and hot water machine unit - Google Patents

Solar auxiliary direct combustion type cold and hot water machine unit Download PDF

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Publication number
CN201203297Y
CN201203297Y CNU2008200579993U CN200820057999U CN201203297Y CN 201203297 Y CN201203297 Y CN 201203297Y CN U2008200579993 U CNU2008200579993 U CN U2008200579993U CN 200820057999 U CN200820057999 U CN 200820057999U CN 201203297 Y CN201203297 Y CN 201203297Y
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China
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heat exchanger
water
heat
circulation
generator
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Expired - Fee Related
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CNU2008200579993U
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Chinese (zh)
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刘成
曹家枞
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Donghua University
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Donghua University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The utility model relates to a solar-energy auxiliary direct-combustion type water refrigerating and heating unit, which comprises a high pressure generator 1, a steam-water heat exchanger 2, a residue heat generator 3, a smoke gas tube 4, a solar heat collector 5, a low pressure generator 6, a condenser 7, an absorber 8, an evaporator 9, a cooling tower 10, a cooling(heating) coil tube 11, a low temperature solution heat exchanger 12, a high temperature solution heat exchanger 13, a valve and a pump. based on the prior double-effect direct-combustion type water refrigerating and heating unit, the utility model introduces a single-effect circulation that is composed of the solar heat collector, the steam-water heat exchanger and the residue heat generator, so as to form a new circulation. The solar heat collector 5 is utilized to heat circulation water so that the temperature of the water is primarily raised, and the circulation water is guided to the steam-gas heat exchanger 2 so the temperature of water is raised further, the high-temperature hot water flown out from the steam-gas heat exchanger 2 enters the residue heat generator, and can be used as the auxiliary heat source heating solution to provide cold quantity and heat quantity respectively when making cold water and making hot water, simultaneously fuel consumption is reduced. The utility model sufficiently utilizes low-grade solar heat source and high temperature smoke gas generated in the high pressure generator of direct-combustion machine to optimize circulation system, so as to improve energy utilization efficiency compared with the double-effect direct-combustion type water refrigerating and heating unit, wherein one-time energy efficiency can be enhanced by 9 percent.

Description

Solar energy is assisted direct-fired hot and cold water unit
Technical field
This practicality relates to a kind of direct-fired hot and cold water unit, relates in particular to the auxiliary direct-fired hot and cold water unit of a kind of idle call solar energy.
Background technology
The estimation that the IIR of International Institute or Refrigeration (The International Institute of Refrigeration) makes shows: 15% power consumption in the world is in various refrigeration and air conditioner industry, and the energy consumption of air-conditioning accounts for 45% of household and commercial building.The ratio of the whole terminal use's total energy consumptions of China's building energy consumption account will reach 35% in recent years.The ratio that studies show that aspect building energy consumption, air conditioning energy consumption account for the office buildings total energy consumption reaches as high as 60%, makes the building air conditioning energy consumption constantly rise in China along with the improvement of economic condition, brings very big pressure for thus the energy, electric power and environment.Therefore energy-conservation is the major issue that is related to national economy.And two energy-conservation main paties are exactly: improve utilization efficiency of energy, use regenerative resource.
The direct-fired absorption handpiece Water Chilling Units is to be the air conditioner cold-heat source device of drive energy with fuel such as natural gases, with its working medium ozone layer is not had destruction, effectively reduces because electric air conditioner causes the peak-valley difference of supply of electric power, be beneficial to the utilization rate that the gas consumption of summer in balance winter improves natural-gas transfer pipeline, characteristics such as reduction natural gas transport cost obtain promoting day by day.For alleviating energy demand, environmental protection, all contradiction of balancing the load, in the area of natural air-air source abundance, directly use natural-gas-powered direct-fired Absorption Refrigerator to obtain to use, can replace the electric refrigerator of central air-conditioning.But theory analysis and actual motion show that all Absorption Refrigerator is all poor than the electrodynamic type handpiece Water Chilling Units in aspect indexs such as energy resource consumption, economy, maintenance management and service lives.How to allow the direct combustion machine can better bring into play its advantage, a large amount of in the industry research with WKG working, as: the circulating research of direct combustion machine, as the research of triple effect machine, the circulation of quadruple effect machine; Absorption heat pump research; Surfactant heat and mass transfer enhancement research in absorber and the generator; Corrosion inhibiter research; Efficiency of combustion research etc.Wherein the temperature of solution has had raising by a relatively large margin than single-effect machine, economic benefits and social benefits machine in the circulation of triple effect lithium bromide absorbing type refrigeration.But corrosion inhibiter commonly used can not meet the demands in the double-effect lithium bromide unit at present, the physical property of high-temperature region lithium-bromide solution lacks the data of standard in addition, carry out experimental study and have many difficulties, present research mainly is theory analysis, domestic mature technique without comparison still, abroad some research institutions and company are in the experimental study stage.Occurrence temperature in the economic benefits and social benefits direct combustion machine high pressure generator of using always on the market reaches about 160 ℃, and during actual motion, generally more than 190~200 ℃, so high exhaust gas temperature not only wastes energy smog discharge temperature, and environment is also caused thermal pollution.Domestic existing people did research, and proposed the direct-fired water chiller/heater of flue gas waste heat recovery.But, its economy can not be demonstrated fully because the yield of flue gas is limited.And on the other hand, solar energy is a kind of radiant energy, is not with any chemical substance, is the cleanest, the most reliable huge energy treasure-house.The solar energy thermal technology has obtained significant progress in recent years, solar absorption air-conditioning on this basis once had been subjected to attention in the industry, emerge many solar airconditionings both at home and abroad in succession, but because solar energy density is lower, the thermal source grade that most of solar energy thermal technologies obtain is lower.Simultaneously because thereby the unstability of solar energy has limited the popularization of simple solar airconditioning.
Summary of the invention
This practical technical problem to be solved provides the auxiliary direct-fired hot and cold water unit of a kind of solar energy, to alleviate the low and high defective of fuel consumption of efficiency of energy utilization in the existing direct-fired hot and cold water technology.
Technical scheme
This practicality provides a kind of solar energy to assist direct-fired hot and cold water unit, comprises high pressure generator, air-water heat exchanger, waste heat generator, fume pipe, solar thermal collector, low pressure generator, condenser, absorber, evaporimeter, cooling tower, cooling (heating) coil pipe, cryogenic fluid heat exchanger, high-temperature solution heat exchanger and valve and pump.This unit has increased a waste heat loop of being made up of waste heat generator, vapor-water heat exchanger and solar thermal collector on the basis of traditional double effect absorption circulation, whole circulation is equivalent to an economic benefits and social benefits circulation and adds a single-action circulation by the waste heat drive circuit.Utilize solar thermal collector heat cycles water and make that temperature is preliminary to feed air-water heat exchanger again after raising its temperature is further raise, the high-temperature-hot-water that is flowed out by air-water heat exchanger enters the waste heat generator and produces refrigerant vapour and enter condenser.
The auxiliary direct-fired hot and cold water unit of described solar energy is characterized in that: the weak solution of coming out from absorber is divided into after through the cryogenic fluid heat exchanger three the tunnel, the one tunnel through high-temperature solution heat exchanger whereabouts high pressure generator, two-way enters low pressure generator and waste heat generator respectively in addition.At last, three tunnel solution after concentrating converge before the cryogenic fluid heat exchanger after heat exchanger enters absorber, begin the circulation of a new round after diluted.
Beneficial effect
The auxiliary direct-fired hot and cold water unit of this practical solar energy can make full use of low-grade solar energy on the one hand low-temperature heat source is applied in the absorption type air-conditioner hot and cold water unit owing to used the more optimal circulatory system; Use waste heat generator and solar thermal collector the time on the other hand and can when reducing fuel consumption, improve efficiency of energy utilization.Both reduced the exhaust gas temperature of the direct-fired circulation of conventional economic benefits and social benefits, the unstability that makes the absorption type air-conditioner that uses solar thermal collector merely be subject to weather effect is overcome again.Improve primary energy efficient PER, thereby reduced operating cost, applied widely.
Description of drawings
Fig. 1 solar energy is assisted direct-fired hot and cold water unit schematic diagram.
The specific embodiment
Below in conjunction with specific embodiment, further set forth this practicality.Should be understood that these embodiment only to be used to this practicality is described and be not used in this practical scope that limits.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read this practicality instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
As shown in Figure 1, the auxiliary direct-fired hot and cold water unit of solar energy mainly by: high pressure generator 1, air-water heat exchanger 2, waste heat generator 3, fume pipe 4, solar thermal collector 5, low pressure generator 6, condenser 7, absorber 8, evaporimeter 9, cooling tower 10, cooling (heating) coil pipe 11, cryogenic fluid heat exchanger 12, high-temperature solution heat exchanger 13 and valve and pump are formed.
Utilize solar thermal collector 5 preliminary heat cycles solar energy waters, solar water after heating up is passed in the air-water heat exchanger 2, make and be passed in the waste heat generator 3 after the abundant heat exchange of solar water and flue gas, hot water in the waste heat loop after the cooling is back to the solar thermal collector repetitive cycling again, and waste gas is discharged by fume pipe 4.The weak solution of coming out from absorber 8 is divided into after through cryogenic fluid heat exchanger 12 three the tunnel, the one tunnel through high-temperature solution heat exchanger 13 whereabouts high pressure generators 1, two-way enters low pressure generator 6 and waste heat generator 3 respectively in addition.Solution is heated concentrated in high pressure generator 1, the steam that high pressure generator 1 produces enters low pressure generator 6 as low-temperature heat source, enter condenser 7 condensations behind the heating solution wherein, the steam that low pressure generator 6 produces directly enters condenser 7 condensations, Third Road solution enters waste heat generator 3 and further utilizes heat in flue gas and the solar energy, and the steam of generation also enters condenser 7.At last, three tunnel solution after concentrating converge before cryogenic fluid heat exchanger 12 after the heat exchanger heat exchange: during refrigeration, valve 14 is closed, 15 open, the concentrated solution that flows out from cryogenic fluid heat exchanger 12 enters the refrigerant vapour that absorber 8 absorbs flash-pot 9, begin the circulation of a new round after diluted, simultaneously by cooling tower 10, the chilled(cooling) water return (CWR) that condenser 7 and absorber 8 formed will be discharged the compensate for heat energy of air-conditioning thermic load and Absorption Cooling System to atmospheric environment, and the chilled water circuit of being made up of evaporimeter 9 and cooling coil is finished to cooling off (heating) coil pipe 11 cold is provided.When heating, valve 14 unlatchings, 15 are closed, directly diluted from the concentrated solution that cryogenic fluid heat exchanger 12 flows out by water as refrigerant from condenser 7, condenser 7, absorber 8 thrown off with cooling tower 10 and heat(ing) coil connects and composes hot-water return, is about to the chilled(cooling) water return (CWR) and switches to hot-water return and finish to cooling (heating) coil pipe 11 heat is provided.
The auxiliary direct-fired hot and cold water unit of solar energy is because the single-action circulation of having used the economic benefits and social benefits circulation to add the waste heat drive circuit has improved efficiency of energy utilization, simultaneously because the use of clean energy resource solar energy makes energy resource consumption further reduce, calculated data shows, this circulatory system can more conventional economic benefits and social benefits direct combustion machine primary energy efficient PER improve 9%, simultaneously can be so that smog discharge temperature is reduced to 120 ℃, energy-saving effect is obvious.

Claims (3)

1. the auxiliary direct-fired hot and cold water unit of solar energy is by high pressure generator (1), air-water heat exchanger (2), waste heat generator (3), fume pipe (4), solar thermal collector (5), low pressure generator (6), condenser (7), absorber (8), evaporimeter (9), cooling tower (10), cooling (heating) coil pipe (11), cryogenic fluid heat exchanger (12), high-temperature solution heat exchanger (13) and valve and pump are formed, it is characterized in that: absorbing on the basis of circulating in traditional economic benefits and social benefits has increased by one by waste heat generator (3), the waste heat loop that vapor-water heat exchanger (2) and solar thermal collector (5) are formed, whole circulation are equivalent to an economic benefits and social benefits circulation and add a single-action circulation by the waste heat drive circuit.
2. solar energy as claimed in claim 1 is assisted direct-fired hot and cold water unit, it is characterized in that: the weak solution of coming out from absorber (8) is divided into after through cryogenic fluid heat exchanger (12) the three tunnel, the one tunnel through high-temperature solution heat exchanger (13) whereabouts high pressure generator (1), two-way enters low pressure generator (6) and waste heat generator (3) respectively in addition.At last, three tunnel solution after concentrating converge after heat exchanger enters absorber (8) in that cryogenic fluid heat exchanger (12) is preceding, begin the circulation of a new round after diluted.
3. as claim 1, the auxiliary direct-fired hot and cold water unit of 2 described solar energy, it is characterized in that: described air-water heat exchanger (2) can be dividing wall type heat exchanger, direct-contact heat exchanger, heat regenerator or heat-pipe heat exchanger.
CNU2008200579993U 2008-05-04 2008-05-04 Solar auxiliary direct combustion type cold and hot water machine unit Expired - Fee Related CN201203297Y (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080898A (en) * 2011-02-22 2011-06-01 王红斌 Lithium bromide absorbing evaporative condensing water chilling unit
CN105571204A (en) * 2016-03-01 2016-05-11 中节能先导城市节能有限公司 Direct-fired machine and solar energy coupled full-automatic cooling, heating and hot water supplying system
CN107631517A (en) * 2017-09-06 2018-01-26 同方节能装备有限公司 A kind of flue gas flashes back formula direct combustion type heat pump
CN109631393A (en) * 2018-11-28 2019-04-16 山西大学 The double-effect lithium bromide absorption type refrigerating plant of fume afterheat and solar energy coupling driving
CN113503657A (en) * 2021-06-17 2021-10-15 燕山大学 Solar auxiliary heat pump system integrating waste heat recovery and self-cleaning functions
CN113739248A (en) * 2021-07-26 2021-12-03 浙江大学 Solar heat collection system for recycling waste heat of small and miniature data center

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080898A (en) * 2011-02-22 2011-06-01 王红斌 Lithium bromide absorbing evaporative condensing water chilling unit
CN105571204A (en) * 2016-03-01 2016-05-11 中节能先导城市节能有限公司 Direct-fired machine and solar energy coupled full-automatic cooling, heating and hot water supplying system
CN107631517A (en) * 2017-09-06 2018-01-26 同方节能装备有限公司 A kind of flue gas flashes back formula direct combustion type heat pump
CN109631393A (en) * 2018-11-28 2019-04-16 山西大学 The double-effect lithium bromide absorption type refrigerating plant of fume afterheat and solar energy coupling driving
CN113503657A (en) * 2021-06-17 2021-10-15 燕山大学 Solar auxiliary heat pump system integrating waste heat recovery and self-cleaning functions
CN113503657B (en) * 2021-06-17 2022-03-22 燕山大学 Solar auxiliary heat pump system integrating waste heat recovery and self-cleaning functions
CN113739248A (en) * 2021-07-26 2021-12-03 浙江大学 Solar heat collection system for recycling waste heat of small and miniature data center

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Granted publication date: 20090304

Termination date: 20120504