CN101285627A - Composite energy supply system and its hidden heat utilization method - Google Patents
Composite energy supply system and its hidden heat utilization method Download PDFInfo
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- CN101285627A CN101285627A CNA2007100653309A CN200710065330A CN101285627A CN 101285627 A CN101285627 A CN 101285627A CN A2007100653309 A CNA2007100653309 A CN A2007100653309A CN 200710065330 A CN200710065330 A CN 200710065330A CN 101285627 A CN101285627 A CN 101285627A
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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]
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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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention provides a composite energy supply system taking natural gas or oil as fuel, consisting of an air humidifying circulating system and a water source heat pump system which are integrated. The method is as follows: when the flue gas is slightly higher or lower than the required temperature of the heat supply of a heat supply network, the heat quantity of the low-temperature flue gas is adopted to heat the water at the low temperature towards the water source heat pump from the water source by a heat exchanger in order to improve the performance coefficient of the heat pump. The smoke evacuation of a gas turbine gets the heat supply by the heat exchanger or inlets the absorbing type heat pump to realize the heat supply or refrigeration. The system can realize the combined heat and power in the winter, realizes the combined coldness and power in the summer and realizes the water recovery at the same time. According to needs, the system can also provide the domestic hot water. The composite energy supply system has large range of heat and power ratio and good flexibility of the vapor load, and overcomes the shortcomings that of the prior combined heat and power system that the utilization rate in the summer is low, the electricity is determined according to the heat, and the heating load is less than the inputted fuel quantity thermal value, etc.
Description
Technical field
The invention belongs to distributed energy thermoelectricity cold jointly-supplying technology field, relate to a kind of composite energy supply system particularly.
The invention still further relates to the high humility low-temperature flue gas latent heat utilization technology and the system that are used to improve above-mentioned energy supplying system performance.
The invention still further relates to a kind of humid air turbine (HAT) circulation smoke evacuation water reclamation technology and system.
Background technology
Urban House and building heating cooling will consume a large amount of fossil energies every year, but the most energy utilization rate of existing heating and cooling apparatus is lower, and waste is serious, has increased the weight of atmosphere pollution simultaneously.Be subjected to today of global common concern in the energy and environmental problem, above-mentioned energy supplying system obviously can't meet the demands.And make up cleaning, efficient, science with can composite energy supply system be to improve energy utilization rate, save the energy, reduce the effective way of pollution.
Thermoelectricity (cold) alliance, the heat pump that with the gas engine are core are considered to current more reasonably heating (cold) mode.
Thermoelectric (cold) alliance unit meets the principle of cascaded utilization of energy, and the energy utilization rate of system is higher.But the high-quality electric energy of its production is the equal of the byproduct of heat (cold) energy.Because unit capacity is little, parameter is low,, cause energy utilization rate to descend so generating efficiency is starkly lower than the large-scale power station generating efficiency.Because a part of fuel value is transformed into electric energy, so heating load is inevitable less than the heat output of fuel that consumes, this does not wish like this being the unit of purpose with heat supply (cold).In addition, the flexibility of thermoelectric load is not enough, and electric load determines by thermic load, when heat (cold) load one of needs regularly, corresponding electric load just determined, can't be outwards heating or cooling under zero the situation at electric load.Therefore, realize heat supply (cold), the operation that must be connected to the grid of this class unit owing to policy and technical reason, is subject to many limitations.Present considerable unit only is a cogeneration units, and also there is another problem in they is that the summer fever load is extremely low, and annual availability descends.And freeze summer, and again electric air-conditionings that adopt have increased the weight of system peak load more.
Heat pump, especially earth source heat pump,, clean environment firendly efficient and utilize the characteristics of regenerative resource to be developed rapidly in recent years with it.The advantage of itself is very outstanding.General input 1kW electric energy can obtain 3～5kW heat (cold) amount.Present heat pump adopts electricity to drive more, and its actual Energy Efficiency Ratio descends to some extent.Mainly be because the general less than 35% of mains supply efficient that is to say, every consumption 1kW fuel heat is finally measured only at 1.0～1.8kW by the heat (cold) that heat pump converts to.The high-performance of heat pump has been offset by the low energy utilization rate in centralized power plant.In addition, the disadvantage that electricity drives heat pump is to have increased the weight of summer system peak load, increases the electric power netting safe running burden.
Very naturally,, make up a kind of novel composite energy supply system, make full use of the advantage of thermoelectricity (cold) coproduction and heat pump, the deficiency that can remedy them again effectively is very necessary.By as can be known aforementioned, thermoelectric (cold) co-feeding system energy science, energy utilization rate height.The electric energy that just sends can not be directly used in heat supply (cold), and a electric energy of the fuel quantity one every pilosity of timing, and is corresponding just few for portion heat (cold).If this a electric energy of pilosity is directly used in the driving heat pump, the heat (cold) that then can become 3～5 parts can, total heat supply (cold) amount of system has increased by 2～4 parts, both solved simultaneously the problem of thermoelectric (cold) co-feeding system generating online, also solved heat pump from the electrical network power taking, increase the weight of the problem of system peak load.And the electrical efficiency of combined cooling, heat and power System is high more, and the consumption available heat of equal fuel amount (cold) amount is just many more, and the primary energy ratio of fuel is just high more.
At present, air saturation EGR (HAT) has the potentiality of high generating efficiency, and itself and water resource heat pump is integrated, can improve the primary energy ratio (can reach more than 2.0) of system greatly.To heat (cold) electricity that improves system than scope, the flexibility of heat (cold) electric load, the trouble of the online of avoiding generating electricity and summer increase peakload, alleviate problem such as environmental pollution positive meaning is all arranged to electrical network.In addition, also reduce the gas peak-valley difference, improved gas ductwork utilization rate in summer.And by the flue gas waste heat recovery utilization, air saturation circulation high-humidity flue gas water reclaims and low temperature latent heat utilization problem also can be resolved to a certain extent.
Summary of the invention
The object of the present invention is to provide the method for utilizing of a kind of composite energy supply system and latent heat thereof, composite energy supply system by air saturation EGR and heat pump heating integrated, that can be used for dwelling house, building etc., cooling, power supply, and recovery of low temperature and high humidity flue gas water and latent heat utilization method, this composite energy supply system has the primary energy ratio height, thermoelectricity is bigger than scope, heat supply (cold) ability big, can alleviate electrical network and pipeline network of fuel gas in city seaonal load peak-valley difference.Characteristics such as independence is strong between each several part, flexibility good, and high-humidity flue gas water recovering effect is good.
In order to realize described purpose, a first aspect of the present invention, composite energy supply system is provided, integrated by air saturation EGR and water source heat pump system, the part or all of electric energy that the generator of air saturation EGR sends is supplied with the water resource heat pump with higher thermal pump performance coefficient, is used for extracting from the water source heat or the cold or the electrical load requirement supply user of arbitrary proportion.
Particularly, composite energy supply system comprises that also fume afterheat utilizes equipment, heat exchanger and water treatment system, the smoke evacuation of air saturation EGR high humility utilizes the outside heat supply of equipment or cold through fume afterheat, flue gas enters the further condensation of heat exchanger again, discharge after discharging latent heat wherein and reclaiming moisture, the water of recovery returns the air saturation EGR and reuses after water treatment system is handled.
In order to realize described purpose, a second aspect of the present invention, the air saturation circulation low-temperature flue gas latent heat utilization method that improves the composite energy supply system performance is provided, its step is as follows: when flue-gas temperature a little more than or when being lower than heat supply network heat supply requirement temperature, go to the temperature lower water of water resource heat pump with the heating of the heat of low-temperature flue gas by the water source by heat exchanger, to improve the coefficient of performance of heat pump.
Particularly, described employing running water absorbs the latent heat that the flue gas in the heat exchanger discharges, and is used to provide the domestic hot-water.
Particularly, during described summer, come water to introduce heat exchanger underground water source and reclaim to realize water.
Particularly, described water at low temperature with the water resource heat pump outlet is introduced heat exchanger, in order to improve the water recovering effect.
The present invention compares with existing heat (cold) chp system has following advantage and beneficial effect.
(1) primary energy ratio height can reach more than 2.0.Compare with the circulation of tradition combustion machine, the air saturation circulation has higher electrical efficiency, and when fuel quantity was identical, generated energy will be higher than the tradition circulation.And every increase 1kW electric energy just can be transformed into the heat (cold) of 3.5～5.5kW behind the heat pump in input.The primary energy ratio of heat supply (cold) raises naturally.
(2) thermoelectricity compares expanded range; The flexibility of thermoelectric load obviously improves.Its thermoelectric load performance curve as shown in Figure 3.System can generate electricity merely; Also can provide maximum heat (cold) load under the situation of output 0kW electric energy, thermoelectric ratio is in 0～∞ range; System also can move under heat (cold) electric load arbitrarily.State in realization under the prerequisite of function, composite energy supply system can guarantee to move good economy performance under greater efficiency and even design efficiency.
(3) under the identical situation of unit capacity, heat supply (cold) can obviously increase by the existing co-feeding system of force rate, even can have more several times.If keep heat supply (cold) load constant, unit capacity can obviously reduce.
(4) opposite with existing system, the air saturation cyclic part generating efficiency of composite energy supply system of the present invention high more (corresponding exhaust gas temperature is just low more), the heat supply of hybrid system (cold) ability is strong more, and energy utilization rate is just high more.This more meets heat (cold) user's requirement.
(5) under " electricity determining by heat " principle, when thermic load was identical, composite energy supply system air saturation periodic duty point of the present invention had higher efficient, the primary energy ratio height more near the design conditions point.
(6) composite energy supply system of the present invention, realize refrigeration by natural gas fuel summer, also reduces pipeline network of fuel gas in city winter and summer load peak-valley difference when alleviating system peak load.
(7) composite energy supply system of the present invention, independence is strong between each several part, and flexibility is good.Can't normally provide under the situation of electric energy in the air saturation circulation, still can drive heat pump realization heat supply (cold) by purchase electricity from electrical network.When only needing electric load, can generate electricity separately, and the characteristics of humidifying circulation have determined generating efficiency than higher.
(8) high-humidity flue gas water recovering effect is good.
Description of drawings
Fig. 1～2nd, system schematic of the present invention.
Fig. 3 is the thermoelectric load performance curve synoptic diagram of composite energy supply system of the present invention.
Fig. 4 and Fig. 5 are air saturation circulation schematic diagrames.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail, be to be noted that described embodiment only is intended to be convenient to the understanding of the present invention, and it is not played any qualification effect.
In system of the present invention, utilize in the gas turbine cycle smoke evacuation waste heat water and with its humidification compressed air, form air saturation and circulate.Because smoke discharging residual heat is fully utilized, so the inner generating efficiency that circulates is higher.The part or all of electric energy that the generator of air saturation EGR 1 sends offers and has the superior performance coefficient and (is called for short COP: the abbreviation of English Coefficient ofPerformance, water resource heat pump 2 down together) extracts heat (cold) amount and supplies with the user from the water source.
The electricity that the generator of air saturation EGR 1 sends except that supplying with heat pump, can also be supplied with other consumer on the spot and use, and needn't surf the Net.If cold (heat) that needs load is bigger, generator load can not be satisfied the demand, can also be from the electric energy of electrical network purchase than small part.Avoid online and increased the problem of system peak load summer.
After the part or all of electric energy that generator is sent is supplied with water resource heat pump 2, can guarantee under the hybrid system primary energy ratio condition with higher, be implemented in electric load maximum cold (heat) load be provided for zero the time, the thermoelectricity of system than scope increase, the flexibility of thermoelectric load strengthens.
Described flue gas water recovery method also comprises by productive life hot water and absorbs flue gas latent heat, realizes that water reclaims.For realizing that air saturation circulation high-humidity flue gas water reclaims, can realize that water reclaims with entering water elder generation condensation flue gas in heat exchanger 4 of water resource heat pump 2 during winter.This method also is a flue gas latent heat utilization method from another side; Described latent heat utilization method as previously mentioned, except that the domestic hot-water is provided, can also enter water resource heat pump 2 with flue gas latent heat heating water resource heat pump 2 import water winter after water is heated, can improve the coefficient of performance of water resource heat pump, and the energy utilization rate of system improves.
, mainly comprise for shown in the composite energy supply system circulation schematic diagram of the present invention as Fig. 1:
Air saturation EGR 1, water resource heat pump 2, fume afterheat utilize equipment 3, heat exchanger 4, controller switching equipment 5, water treatment system 6 and relevant first valve 7, second valve 8, the 3rd valve 9, the 4th valve 10, the 5th valve 11 and pipeline to be formed by combining, and the concrete form that they adopt is:
Air saturation EGR 1: the TG80 miniature combustion engine of producing with Bowman company is a core, pressure ratio 4.3,900 ℃ of initial temperature, rated power 80kW.
Water resource heat pump 2 also can be other heat pump, and as air source heat pump etc., water resource heat pump 2 can adopt electricity to drive or directly be driven by the combustion machine.This example adopts CIAT LWP series water resource heat pump.
Fume afterheat utilizes equipment 3, can adopt surface-type heat exchanger, also can adopt flue gas type refrigeration machine etc.
Described heat exchanger 4 can adopt surface-type or direct-contact heat exchanger, and fume side pressure is normal pressure, and the water lateral pressure is no more than 0.7MPa.
Controller switching equipment 5: the air switch of selecting rated voltage 380V, rated current 250A for use.
Water treatment system 6: can select 300 kilograms/hour of single-stage reverse osmosis water treating apparatus, water yields for use.
First valve 7, second valve 8, the 3rd valve 9, the 4th valve 10, the 5th valve 11 all adopt common stop valve, nominal pressure: 1.0MPa, nominal diameter 100.
Combustion gas or fuel oil are to produce electric energy in the fuel 12 input air humidifying EGRs 1, partly or entirely are used to drive water resource heat pump 2 outside first heat supplies or cold 14.Also have residue if the electric energy that the air saturation circulation produces is used to drive water resource heat pump 2, then can send into electrical network 13 by controller switching equipment 5, should guarantee that unit moves this moment under optimum efficiency as far as possible, and the electric energy that has more is sent into electrical network 13.Otherwise,, then can purchase from electrical network 13 by controller switching equipment 5 if the electric energy that the air saturation circulation produces is not enough to drive water resource heat pump 2.When producing electric energy, the smoke evacuation of air saturation EGR 1 high humility at first utilizes equipment 3 outside second heat supplies or cold 14 through fume afterheat; Flue gas enters heat exchanger 4 further condensations more then, discharges after discharging latent heat wherein and reclaiming moisture.The water that heat exchanger 4 reclaims returns air saturation EGR 1 and reuses after water treatment system 6 is handled.Being used for the water of condensation flue gas in the heat exchanger 4 can be running water 17, and domestic water 15 is provided after the heat absorption.At this moment, second valve 8 and the 4th valve 10 are closed, and water enters heat exchanger 4 through first valve 7, and condensation flue gas (self being heated simultaneously) is after the 5th valve 11 is supplied with the user; The water source of water resource heat pump 2 comes three valve 9 of water 18 through opening to enter backwater source 19 behind the water resource heat pump 2.During winter, the water source of water resource heat pump 2 can also be come water 18 earlier through heat exchanger 4 condensation flue gases, and then enter water resource heat pump 2, to improve heat pump performance.At this moment, the water source comes water 18, enters heat exchanger 4 condensation flue gases (self being heated simultaneously) after the 4th valve 10 enters backwater source, water resource heat pump 2 back 19 through second valve 8.First valve 7, the 3rd valve 9 and the 5th valve 11 are all closed.But can't provide the domestic hot-water this moment, and heat exchanger 4 outlet flue gas 16 enters atmosphere through chimney.
In order to realize that water reclaims, also can adopt system shown in Figure 2: the 6th valve 38, the 7th valve 39, the 8th valve 40, the 9th valve 41 all adopt common stop valve, nominal pressure: 1.0MPa, nominal diameter 100.
The water source comes water 18 after the 3rd valve 9 enters water resource heat pump 2, enters heat exchanger 4 cooled flue gas through the 9th valve 41 again, realizes returning water source 19, the six valves 38 through the 7th valve 39 again after water reclaims and the 8th valve 40 is closed.When this method water resource heat pump in winter 2 was used to heat, the water recovering effect was good.Consider that its outlet water temperature may influence the water recovering effect than higher when summer, water resource heat pump 2 was used for cooling.Can close the 9th valve 41 this moment, and the part water source comes water 18 to enter heat exchanger 4 cooled flue gas through the 6th valve 38, realizes that water reclaims after the 7th valve 39 returns water source 19.The water source comes water 18 and backwater source 19 behind the 8th valve 40 and the water of water resource heat pump 2 still comes from.Because summer, the underground water temperature was starkly lower than the surface water temperature, so the water recovering effect will be got well.That reclaims from heat exchanger 4 is same through returning air saturation circulation 1 repeated use after water treatment system 6 purified treatment.Heat exchanger 4 outlet flue gas 16 enters atmosphere through chimney.Remainder and Fig. 1 are identical.
Described flue gas water recovery method also is included in the water that will come out from water resource heat pump 2 and introduces heat exchanger condensation flue gas (accompanying drawing 2).This water temperature is lower during winter, and water recovery ratio increases.During summer, the water temperature height, recovering effect descends.
The electric energy that air saturation EGR 1 sends is supplied with water resource heat pump 2 more as required through controller switching equipment 5, drives water resource heat pump 2 outside heat supplies (cold) 14.If electric energy is not enough, can purchase from electrical network 13; If the electric energy that sends can be gone up electrical network 13, can guarantee as far as possible that so unit moves under optimum efficiency, the electric energy that has more is sent into electrical network 13.
Fig. 3 is the thermoelectric load performance curve map of composite energy supply system of the present invention.In actual motion, the heat of energy supplying system (cold) electric load is determined by extraneous demand, be there is no positive connection between the two.But, exist the specific Q that concerns between heat (cold) electric load of air saturation circulation itself
B=f (P
B).Provided under particular thermal (cold) electric load (corresponding A point) definite method of air saturation periodic duty point in the hybrid system among the figure:
Q
A＝Q
B+(P
B-P
A)×COP (1)
Q
A---the thermic load of extraneous demand.
Q
B---the thermic load that fume afterheat utilizes equipment directly to provide.
P
A---the electric load of extraneous demand.
P
B---the electric load of air saturation EGR generator output.
The coefficient of performance of COP---heat pump.
The Q that calculates by following formula
BAnd P
BCan determine the operating point B of humidifying circulation.That is, as long as the humidifying periodic duty at the B point, is then sent it (P in electric energy
B-P
A) partly supply with water resource heat pump 2, just can satisfy the specific heat of user (cold) electric load (A point) requirement simultaneously.If generating can be gone up electrical network 13, then can remain air saturation EGR 1 moves under its peak efficiency operating mode, the electric energy that sends is divided into three parts: a part satisfies the electric load requirement, and a part drives water resource heat pump 2 and satisfies the thermic load requirement, and a remaining part is supplied with electrical network 13.
From Fig. 3 as seen, the thermoelectric load variations direction of system of the present invention is opposite, i.e. electric load increase then thermic load reduces, and vice versa.Thermoelectric load is very flexible, as long as adjust the electric energy that air saturation EGR 1 is supplied with water resource heat pump 2, just can satisfy heat (cold), the electrical load requirement of arbitrary proportion.These are obviously different with traditional cogeneration system.The electric load that requires when the external world reduces, when thermic load increases (such as electric load by P
BDrop to P
A, thermic load is by Q
BBe increased to Q
A), the traditional hot chp system can't meet the demands at all.And in system of the present invention, as long as the electric load of the output of the generator in the air saturation EGR 1 is used to drive water resource heat pump 2 more, when reducing external output electric load, increased thermic load again, till finally satisfying extraneous thermoelectric burden requirement simultaneously.Obviously, thermoelectric load is more flexible.Under extreme case, the electric load that needs when the external world is 0 and thermic load maximum (Q
Max) time, all electric loads all are used to drive water resource heat pump 2 can meet the demands.The thermoelectricity of this moment is than being infinity, and the thermoelectricity of system has bigger expansion than the more traditional co-feeding system of scope.Though at this moment system appears to and is equivalent to heating boiler, the difference of essence is arranged.At first be that system can realize cooling in summer.Secondly, no matter be simple heat supply or simple cooling, the primary energy ratio of system is all greater than 100%.These 2 all is that plain cylindrical furnace can't be accomplished at all.The humidifying circulation (generating efficiency 35%) that becomes with Bowman company's T G80 combustion mechanism and COP are that the composite energy supply system that 4.5 water resource heat pump 2 (CIAT LWP series heat pump) constitutes is an example, and conservative supposition fume afterheat utilizes the available heat of equipment only to account for 40% of input primary energy.The then simple heat supply of system, when input 100kW primary energy, the heat that can provide is: 100 * 35% * 4.5+100 * 40%=197.5kW.The heat that has more is extracted in the middle of environment by water resource heat pump 2, does not consume primary energy, so corresponding primary energy ratio is: 197.5/100=1.975.
In specific implementation process, limited by objective condition, the water of water resource heat pump 2 be not necessarily be derived from underground, also can be, or industrial wastewater, GEOTHERMAL WATER etc. from rivers,lakes and seas and reservoir.Also can adopt closed circle water system, utilize smoke discharging residual heat heat cycles water during heat supply; During refrigeration, by external heat dissipation equipment cooling circulating water.
In the humidifying circulation of Fig. 4 air, the humidifying of air is to carry out in humidification machine 25 (direct-contact heat exchanger).Air 35 boosts through compressor 20, become compressed air and in heat exchanger 24 (also claiming aftercooler), be cooled after enter humidification machine 25 and directly contact with the hot water that from heat exchanger 24 and heat exchanger 31, comes, by water heating, humidification, enter absorption combustion machine 22 smoke exhaust heats in the heat exchanger 30 (also claiming regenerator) then, enter combustion chamber 21 after being heated and burn jointly with fuel 12.The high-temperature flue gas that forms enters 22 actings of combustion machine, drives generator 23 and sends electric energy.The water of humidification machine 25 outlets continues to enter respectively heat exchanger 24 and 31 and reuses after water pump 26 boosts.Heat exchanger 32 (surface-type or direct contact type) reclaims the part or all of moisture that adds with the flue gas cooling from flue gas, and is sent to circulation inside by water pump 27 (can add moisturizing 28 in case of necessity), guarantees system water mass balancing.The humidification machine 25 import water yields and inlet air amount ratio are generally about 1: 1; Humidification machine 25 goes out the distribution of saliva in heat exchanger 24 and heat exchanger 31 does not also have strict proportion requirement, but will guarantee that heat exchanger 24 and heat exchanger 31 go out saliva and can not vaporize.Water pump 26 is a centrifugal water pump, inlet pressure 0.5MPa, 50 meters of lifts, 4 tons/hour of flows, 90 ℃ of inlet temperatures; Water pump 27 is common centrifugal water pump, 100 meters of lifts, and 400 kilograms/hour of flows, entering the mouth is normal pressure and temperature.Combustion machine 22 outlet flue gases enter fume afterheat shown in Figure 1 and utilize equipment 3 forming high-humidity flue gas 29 through heat exchanger 30, heat exchanger 31 backs successively.
Solid line is represented air/flue gas shown in Fig. 4 and Fig. 5, and dotted line is represented water.
In Fig. 5 water filling/vapor recycle schematic diagram, the humidifying of air be directly to compressor 20 inlet water sprays or in combustion chamber 21 water filling or steam realize.After water pump 42 boosts, enter surface-type heat exchanger 37 (also claiming to economize matchmaker's device) preheating by the water 32 of water treatment system shown in Figure 16 (if yield less than the water yield that adds, needs quantitative moisturizing 28), reclaim flue gas heat simultaneously and improve cycle efficieny.Enter waste heat boiler 36 then and produce steam, enter combustion chamber 21 at last, and enter 22 actings of combustion machine after high-temperature flue gas that fuel 12 burnings generate mixes, drive generator 23 and generate electricity.Water treatment system 6 come water 32 after pump 42 boosts, also part water can be sprayed in the compressor intake air 35, realize certain air saturation.Combustion machine 22 outlet flue gases through the high-humidity flue gas 29 of waste heat boiler 36 and economizer 37 back formation, enter fume afterheat shown in Figure 1 and utilize equipment 3 successively.Waste heat boiler 36 outlet nominal steam pressures all can in 0.45 ton of/hour scope at 0.8MPa, 450 ℃ of temperature, quantity of steam.0.5 ton/hour of water pump 42 metered flow, 200 meters of lifts.In addition, after water 32 can being boosted by pump 42 again, directly spray into compressor 20 inlet or heat exchanger 37 is gone out saliva through the tenth valve 33 and directly spray into combustion chamber 21, also can realize the humidifying effect, form aforesaid humidifying circulation through the 11 valve 34.The tenth valve 33 and the 11 valve 34 adopt common stop valve, nominal pressure 3.0MPa.Certainly, above-mentioned humidifying method can also can be used in combination separately.
The above, it only is the preferred embodiment that proposes according to technical solution of the present invention, be not that the present invention is done any pro forma restriction, water resource heat pump can change other forms of heat pump into, the working medium of transmitting heat (cold) in the heat supply network is not limited only to water, every technical solution of the present invention content that do not break away from, all still belongs in the claim scope of the present invention simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (6)
1. composite energy supply system, it is characterized in that: by the air saturation EGR (1) and water resource heat pump (2) system integration, the part or all of electric energy that the generator of air saturation EGR (1) sends is supplied with the water resource heat pump (2) with higher thermal pump performance coefficient, is used for extracting from the water source heat or the cold or the electrical load requirement supply user of arbitrary proportion.
2. composite energy supply system as claimed in claim 1, it is characterized in that: comprise that also fume afterheat utilizes equipment (3), heat exchanger (4) and water treatment system (6), the smoke evacuation of air saturation EGR (1) high humility utilizes outwards heat supply or cold of equipment (3) through fume afterheat, flue gas enters further condensation of heat exchanger (4) again, discharge after discharging latent heat wherein and reclaiming moisture, the water of recovery returns air saturation EGR (1) and reuses after water treatment system (6) is handled.
3. air saturation circulation low-temperature flue gas latent heat utilization method that improves the composite energy supply system performance, it is characterized in that: when flue-gas temperature a little more than or when being lower than heat supply network heat supply requirement temperature, go to the temperature lower water of water resource heat pump with the heating of the heat of low-temperature flue gas by the water source by heat exchanger, to improve the coefficient of performance of heat pump.
4. as latent heat utilization method as described in the claim 3, it is characterized in that: adopt running water to absorb the latent heat that the flue gas in the heat exchanger discharges, be used to provide the domestic hot-water.
5. as latent heat utilization method as described in the claim 3, it is characterized in that: during summer, come water to introduce heat exchanger underground water source and reclaim to realize water.
6. as latent heat utilization method as described in the claim 3, it is characterized in that: the water at low temperature of water resource heat pump outlet is introduced heat exchanger, to improve the water recovering effect.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100653309A CN101285627A (en) | 2007-04-11 | 2007-04-11 | Composite energy supply system and its hidden heat utilization method |
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|---|---|---|---|
| CNA2007100653309A CN101285627A (en) | 2007-04-11 | 2007-04-11 | Composite energy supply system and its hidden heat utilization method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997316A (en) * | 2012-11-22 | 2013-03-27 | 大连葆光节能空调设备厂 | Waste heat recovery type distributed energy and seawater source heat pump coupling system |
| CN102997490A (en) * | 2012-11-22 | 2013-03-27 | 大连葆光节能空调设备厂 | Waste heat recovery type distributed energy and sewage source heat pump coupling system |
| CN102997501A (en) * | 2012-11-22 | 2013-03-27 | 大连葆光节能空调设备厂 | Waste heat recovery type distributed energy and urban trunk canal sewage source heat pump coupling system |
| CN103277853A (en) * | 2013-05-23 | 2013-09-04 | 杭州江鸣机械技术有限公司 | Outer circulation gas energy heating air conditioner |
| CN107166808A (en) * | 2017-05-12 | 2017-09-15 | 中南大学 | A kind of founding factory cooling water heat recovery method and its device |
| CN108506955A (en) * | 2017-02-24 | 2018-09-07 | 爱质环保科技（上海）有限公司 | A kind of heating system using City Life Trash Power Plant fume afterheat |
| CN113531575A (en) * | 2021-06-16 | 2021-10-22 | 淮阴工学院 | Novel combined cooling heating and power system and waste heat recovery output optimization method thereof |
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2007
- 2007-04-11 CN CNA2007100653309A patent/CN101285627A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997316A (en) * | 2012-11-22 | 2013-03-27 | 大连葆光节能空调设备厂 | Waste heat recovery type distributed energy and seawater source heat pump coupling system |
| CN102997490A (en) * | 2012-11-22 | 2013-03-27 | 大连葆光节能空调设备厂 | Waste heat recovery type distributed energy and sewage source heat pump coupling system |
| CN102997501A (en) * | 2012-11-22 | 2013-03-27 | 大连葆光节能空调设备厂 | Waste heat recovery type distributed energy and urban trunk canal sewage source heat pump coupling system |
| CN103277853A (en) * | 2013-05-23 | 2013-09-04 | 杭州江鸣机械技术有限公司 | Outer circulation gas energy heating air conditioner |
| CN103277853B (en) * | 2013-05-23 | 2017-07-28 | 赵亮 | A kind of outer circulation combustion gas energy heating air conditioner |
| CN108506955A (en) * | 2017-02-24 | 2018-09-07 | 爱质环保科技（上海）有限公司 | A kind of heating system using City Life Trash Power Plant fume afterheat |
| CN107166808A (en) * | 2017-05-12 | 2017-09-15 | 中南大学 | A kind of founding factory cooling water heat recovery method and its device |
| CN113531575A (en) * | 2021-06-16 | 2021-10-22 | 淮阴工学院 | Novel combined cooling heating and power system and waste heat recovery output optimization method thereof |
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