CN104343478A - Dual working medium circulating power generation system of waste heat in recovered flue gas - Google Patents
Dual working medium circulating power generation system of waste heat in recovered flue gas Download PDFInfo
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- CN104343478A CN104343478A CN201410568471.2A CN201410568471A CN104343478A CN 104343478 A CN104343478 A CN 104343478A CN 201410568471 A CN201410568471 A CN 201410568471A CN 104343478 A CN104343478 A CN 104343478A
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- 239000003546 flue gas Substances 0.000 title claims abstract description 83
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000002918 waste heat Substances 0.000 title claims abstract description 44
- 238000010248 power generation Methods 0.000 title abstract description 5
- 230000009977 dual effect Effects 0.000 title abstract 2
- 238000011084 recovery Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 239000007921 spray Substances 0.000 claims description 42
- 238000005507 spraying Methods 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 17
- 239000003507 refrigerant Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 11
- 239000007789 gas Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 13
- 239000000498 cooling water Substances 0.000 description 4
- 239000003517 fume Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention provides a dual working medium circulating power generation system of waste heat in recovered flue gas. The system comprises a steam generator, an expansion machine, a power generator, a condenser, a working medium pump and a direct contact waste heat recovery device, wherein the steam generator is used for heating a working medium via the waste heat in the flue gas and converting the working medium into high-pressure steam to enter the expansion machine; the expansion machine is used for working under driving of the high-pressure steam; the power generator is coaxially connected with the expansion machine, and generates power under driving of the expansion machine; the condenser is used for cooling a low-pressure steam working medium exhausted by the expansion machine into a liquid working medium; the working medium pump is used for delivering the liquid working medium exhausted from the condenser to the steam generator; the direct contact waste heat recovery device is used for receiving the flus gas exhausted from the steam generator; and a heat medium in the direct contact waste heat recovery device is directly contacted with the flue gas to recover heat in the flue gas. The heat in the flus gas exhausted by the steam generator can be further recycled, and sensible heat and latent heat in the flue gas can be recovered.
Description
Technical field
The present invention relates to and utilize waste-heat power generation technical field, particularly the double-work medium cycle generating system of used heat in a kind of recovered flue gas.
Background technique
At present, the double-work medium cycle generating system being carried out utilizing by the used heat in factory is more common, such as, utilizes the used heat, underground heat etc. of the used heat of fume emission, hot water emission, lower boiling working medium is evaporated, to drive decompressor and electrical power generators.
See Fig. 1, this figure is double-work medium cycle generating system schematic diagram of the prior art.
The meaning of the label representative in Fig. 1 is as follows:
1, steam generator; 2, decompressor; 3, generator; 4, condenser; 5, cooling tower; 6, cooling waterpump; 7, working medium pump.
Used heat w1 enters steam generator 1, and used heat w1 heats working medium.The steam of High Temperature High Pressure is become by the working medium after heating.The steam of High Temperature High Pressure arrives decompressor 2, is worked by pressure differential decompressor 2, drives simultaneously and generates electricity with the coaxial generator 3 be connected of decompressor 2.
Enter condenser 4 from the working medium of decompressor 2 low pressure steam out, the cooling medium w2 in cooling tower 5 is transported to condenser 4 by cooling waterpump 6.As can be seen from Figure 1, need between cooling tower 5 with condenser 4 to be connected by cooling water pipe.
Working medium cooled medium w2 cooling in condenser 4 of low pressure steam becomes liquid refrigerant.Be sent to steam generator 1 from condenser 4 liquid refrigerant out by working medium pump 7, a so far circulation terminates.
In prior art, after utilizing used heat w1 heating working medium, the low-temperature waste heat of discharging from steam generator 1 is not generally used effectively, and has directly discharged.
Therefore, those skilled in the art need the double-work medium cycle generating system providing used heat in a kind of recovered flue gas, the fume waste heat that can effectively utilize steam generator to discharge, thus improve the working efficiency of whole power generation system.
Summary of the invention
The technical problem to be solved in the present invention is to provide the double-work medium cycle generating system of used heat in a kind of recovered flue gas, the fume waste heat that can effectively utilize steam generator to discharge, thus improves the working efficiency of whole power generation system.
The invention provides the double-work medium cycle generating system of used heat in a kind of recovered flue gas, comprising: steam generator, decompressor, generator, condenser, working medium pump and direct contact type waste heat recovery plant;
Described steam generator, for being heated working medium by the used heat in flue gas, being become high pressure steam by described working medium and entering described decompressor;
Described decompressor, for working under the driving of described high pressure steam;
Described generator, is coaxially connected with described decompressor, generates electricity under the driving of described decompressor;
Described condenser, is cooled to liquid refrigerant for the low pressure steam working medium of being discharged by described decompressor;
Described working medium pump, for being delivered to described steam generator by the liquid refrigerant of discharging from described condenser;
Described direct contact type waste heat recovery plant, for receiving the flue gas of discharging from described steam generator, the thermal medium in described direct contact type waste heat recovery plant and described flue gas directly contact the heat in recovered flue gas.
Preferably, described direct contact type waste heat recovery plant comprises: flue gas channel, trickle equipment;
Described thermal medium is water;
The flue gas that described steam generator is discharged is passed in described flue gas channel;
Described trickle equipment, for carrying out trickle to the described flue gas flowed through in described flue gas channel.
Preferably, described trickle equipment comprises multiple nozzle;
Or,
Described trickle equipment is water spraying tray, and described water spraying tray comprises base plate and side plate, and the surrounding of described base plate is surrounded by described side plate; Described base plate comprises multiple trickle hole.
Preferably, also comprise: be arranged on the preheating heat exchanger between described working medium pump and described steam generator;
Between described preheating heat exchanger and described direct contact type waste heat recovery plant, heat eliminating medium loop is set;
The described liquid refrigerant flowing through described preheating heat exchanger is heated by the heat that described direct contact type waste heat recovery plant reclaims by described heat eliminating medium loop; Described steam generator is supplied to by the liquid refrigerant after heating.
Preferably, described heat eliminating medium loop arranges side loop; Described heat eliminating medium loop is provided with first group of valve, described side loop is arranged second group of valve;
Described first group of valve open, when described second group of valve turns off, described preheating heat exchanger and described direct contact type waste heat recovery plant carry out heat exchange by described heat eliminating medium loop;
Or described first group of valve turns off, and during described second group of valve open, described direct contact type waste heat recovery plant carries out heat exchange by described side loop and heating load;
Or described first group of valve open, when described second group of valve is also opened, described direct contact type waste heat recovery plant carries out heat exchange with described preheating heat exchanger and heating load simultaneously.
Preferably, described heat eliminating medium loop arranges water quality survey device;
Described water quality survey device, for adjusting the Among Corrosive Factors of the heat eliminating medium in described heat eliminating medium loop.
Preferably, described heat eliminating medium loop arranges water quality survey device;
Described water quality survey device, for adjusting the Among Corrosive Factors of the heat eliminating medium in described heat eliminating medium loop.
Preferably, described condenser is evaporative condenser;
Described evaporative condenser comprises: the first spray device, heat transfer nest of tubes, spray pump and blower fan;
Described heat transfer nest of tubes, the low pressure steam working medium of discharging for making described decompressor is circulation in pipe;
Described first spray device, sprays on the surface of described heat transfer nest of tubes for the spraying water sent by described spray pump;
Described blower fan, for drying to described heat transfer nest of tubes surface.
Preferably, described condenser is evaporative condenser;
Described evaporative condenser comprises: the first spray device, heat transfer nest of tubes, spray pump and blower fan;
Described heat transfer nest of tubes, the low pressure steam working medium of discharging for making described decompressor is circulation in pipe;
Described first spray device, sprays on the surface of described heat transfer nest of tubes for the spraying water sent by described spray pump;
Described blower fan, for drying to described heat transfer nest of tubes surface.
Preferably, described condenser is evaporative condenser;
Described evaporative condenser comprises: the first spray device, heat transfer nest of tubes, spray pump and blower fan;
Described heat transfer nest of tubes, the low pressure steam working medium of discharging for making described decompressor is circulation in pipe;
Described first spray device, sprays on the surface of described heat transfer nest of tubes for the spraying water sent by described spray pump;
Described blower fan, for drying to described heat transfer nest of tubes surface.
Compared with prior art, the present invention has the following advantages:
Direct contact type waste heat recovery plant receives the flue gas of discharging from described steam generator, and the thermal medium in direct contact type waste heat recovery plant directly contacts the heat in recovered flue gas with described flue gas.Heat in flue gas steam generator can discharged is recycled further.Therefore, the system utilizing the present embodiment to provide not only can utilize the sensible heat in steam generator recovered flue gas, and can utilize direct contact type waste heat recovery plant can latent heat in recovered flue gas.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is double-work medium cycle generating system schematic diagram of the prior art;
Fig. 2 is double-work medium cycle generating system embodiment one schematic diagram of used heat in recovered flue gas provided by the invention;
Fig. 3 a is a kind of schematic diagram of trickle equipment provided by the invention;
Fig. 3 b is the another kind of schematic diagram of trickle equipment provided by the invention;
Fig. 4 is double-work medium cycle generating system embodiment three schematic diagram of used heat in recovered flue gas provided by the invention;
Fig. 5 is double-work medium cycle generating system embodiment four schematic diagram of used heat in recovered flue gas provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment one:
See Fig. 2, this figure is double-work medium cycle generating system embodiment one schematic diagram of used heat in recovered flue gas provided by the invention.
The double-work medium cycle generating system of used heat in the recovered flue gas that the present embodiment provides, comprising: steam generator 1, decompressor 2, generator 3, condenser 4, working medium pump 7 and direct contact type waste heat recovery plant 8;
Described steam generator 1, for being heated working medium by the used heat w1 in flue gas, being become high pressure steam and entering described decompressor 2 by described working medium;
Described decompressor 2, for working under the driving of described high pressure steam;
Described generator 3, is coaxially connected with described decompressor 2, generates electricity under the driving of described decompressor 2;
Described condenser 4, is cooled to liquid refrigerant for the low pressure steam working medium of being discharged by described decompressor 2;
Low pressure steam working medium in condenser 4 be cooled water pump 6 from cooling tower 5 be pumped through come cooling medium w2 cooling liquid.
Described working medium pump 7, for being delivered to described steam generator 1 by the liquid refrigerant of discharging from described condenser;
Described direct contact type waste heat recovery plant 8, for receiving the flue gas of discharging from described steam generator 1, the thermal medium in described direct contact type waste heat recovery plant 8 and described flue gas directly contact the heat in recovered flue gas.
The advantage of the system that the present embodiment provides is described below in conjunction with an instantiation.
Such as, the flue gas being gas turbine or gas internal-combustion engine for the flue gas entering steam generator 1, the flue gas of about 450 DEG C enters steam generator 1, from steam generator 1 out time be about 200 DEG C.
Conveniently understand, assuming that this flue gas of 200 DEG C is from boiler flue gas out.
Generally, when efficiency of boiler take low heat valve as benchmark, be about 90%, when taking high calorific power as benchmark, be about 81%.
When the flue gas of discharging boiler does not carry out heat recovery completely, the heat that these flue gases are discharged into the atmosphere is benchmark with low heat valve, is about 10%; Be benchmark with high calorific power, be about 19%.
Take rock gas as the flue gas of the boiler emission of fuel be example, suppose that excess air ratio is 1.3, then flue gas dew point temperature is about 53 DEG C.If spray also wants the water of low temperature than 53 DEG C, then can reclaim latent heat from flue gas.
In addition, the cooling water condition of compression-type refrigerating machine with 30 of GB standard DEG C-35 DEG C for standard conditions.By this condition, condensing temperature is about 37 DEG C, also has allowance for 53 DEG C relative to dew point temperature.
Therefore, in double-work medium cycle generating system, if also considered by identical condition, even then for the thermal medium that pre-hot working fluid uses, be also enough from off-gas recovery latent heat.During by the flue gas cool-down of 200 DEG C to 40 DEG C, take high calorific power as the used heat of benchmark about recyclable 12.5%.That is, if be benchmark with high calorific power, then the percentage of heat of discharging into the atmosphere is:
100-(81+12.5)＝6.5；
This with do not carry out heat recovery completely, 19% discharges into the atmosphere compares, and the amplitude of heat recovery is very large.According to the system provided in the present embodiment, the latent heat in flue gas accounts for the ratio reclaiming heat and is about 60%.Therefore, the system utilizing the present embodiment to provide not only can utilize the sensible heat in steam generator recovered flue gas, and can utilize direct contact type waste heat recovery plant can latent heat in recovered flue gas.
Embodiment two:
Continue see Fig. 2, described direct contact type waste heat recovery plant comprises: flue gas channel 8b, trickle equipment 8a;
Described thermal medium is water;
The flue gas that described steam generator 1 is discharged is passed in described flue gas channel 8b;
Described trickle equipment 8a, for carrying out trickle to the described flue gas flowed through in described flue gas channel 8b.
See Fig. 3 a, this figure is a kind of schematic diagram of trickle equipment.
Described trickle equipment comprises multiple nozzle 100; It should be noted that, Fig. 3 a is only the schematic diagram of a nozzle 100, is understandable that, is provided with multiple such nozzle 100 in flue gas channel 8b.
Nozzle 100 directly carries out trickle to flue gas.
Use such nozzle 100 can realize even trickle, but such nozzle 100 carrys out action by the pressure of thermal medium, therefore, the pressure that nozzle 100 consumes will be added on thermal medium pump head, so just needs thermal medium pump head larger.
See Fig. 3 b, this figure is the another kind of schematic diagram of trickle equipment.
Described trickle equipment is water spraying tray, and described woods water pond comprises base plate 71 and side plate 72, and the surrounding of described base plate 71 is surrounded by described side plate 72; Described base plate 71 comprises multiple trickle hole.
The water of water spraying tray inside, via the trickle hole on base plate 71, falls naturally by gravity, to the flue gas trickle flowing through flue gas channel.By water spraying tray trickle, although be difficult to realize even trickle, the advantage existed is: cost is cheap, can not increase thermal medium pump head.
Embodiment three:
See Fig. 4, this figure is double-work medium cycle generating system embodiment three schematic diagram of used heat in recovered flue gas provided by the invention.
The double-work medium cycle generating system that the present embodiment provides, also comprises: be arranged on the preheating heat exchanger 9 between described working medium pump 7 and described steam generator 1;
Heat eliminating medium loop (L1 and L2 as shown in Figure 4) is set between described preheating heat exchanger 9 and described direct contact type waste heat recovery plant 8;
The described liquid refrigerant flowing through described preheating heat exchanger 9 is heated by the heat that described direct contact type waste heat recovery plant 8 reclaims by described heat eliminating medium loop; Described steam generator 1 is supplied to by the liquid refrigerant after heating.
Enter direct contact type waste heat recovery plant 8 from steam generator 1 flue gas w1 out, be discharged in air through flue gas channel 8b.Now, carry out trickle by the liquid distribution 8a arranged in direct contact type waste heat recovery plant 8, to reduce flue-gas temperature, reject heat in spraying water.Spraying water is heated by the heat from off-gas recovery, and temperature rises.The spraying water that temperature rises, through thermal medium pump 11, via heat eliminating medium loop L1 and first group of valve V1, V2, is supplied to preheating heat exchanger 9, with heating working medium liquid.Or via second group of valve V3, V4, be sent to heating load 10, to heat heated medium.
After preheating heat exchanger 9 or heating load 10 release heat, the spraying water that temperature have dropped returns the spray equipment 8a of direct contact type waste heat recovery plant 8 via heat eliminating medium loop L2.
In the present embodiment, the heat reclaimed from flue gas, as thermal medium w3, is supplied to preheating heat exchanger 9 and/or heating load 10 by spraying water.
The state introduced below by controlling first group of valve and second group of valve controls heat supply.
Described heat eliminating medium loop arranges side loop; Described heat eliminating medium loop is provided with first group of valve V1 and V2, described side loop is arranged second group of valve V3 and V4;
Described first group of valve V1 and V2 opens, and when described second group of valve V3 and V4 turns off, described preheating heat exchanger 9 carries out heat exchange with described direct contact type waste heat recovery plant 8 by described heat eliminating medium loop;
Or described first group of valve V1 and V2 turns off, when described second group of valve V3 and V4 opens, described direct contact type waste heat recovery plant 8 carries out heat exchange by described side loop and heating load 10;
Or described first group of valve V1 and V2 opens, when described second group of valve V3 and V4 also opens, described direct contact type waste heat recovery plant 8 carries out heat exchange with described preheating heat exchanger 9 and heating load 10 simultaneously.
Described heat eliminating medium loop arranges water quality survey device 12;
Described water quality survey device 12, for adjusting the pH value of the heat eliminating medium in described heat eliminating medium loop, or adds anti-corrosion additive.
Because the thermal medium of spray is direct and smoke contacts, along with the passing of working time, thermal medium will become acidity (namely pH value declines), will cause the danger of corroding like this, therefore, water quality survey device 12 is provided with in order to prevent the generation of this problem.
Embodiment four:
See Fig. 5, this figure is double-work medium cycle generating system embodiment four schematic diagram of used heat in recovered flue gas provided by the invention.
The double-work medium cycle generating system that the present embodiment provides, described condenser 4 is evaporative condenser;
Described evaporative condenser comprises: the first spray device 4c, heat transfer nest of tubes 4a, spray pump 4b and blower fan 4d;
Described heat transfer nest of tubes 4a, the low pressure steam working medium of discharging for making described decompressor 2 is circulation in pipe;
Described first spray device 4c, sprays on the surface of described heat transfer nest of tubes 4a for the spraying water sent by described spray pump 4b;
Described blower fan 4d, for drying to described heat transfer nest of tubes 4a surface.
Water bottom evaporative condenser is sent to the first spray device 4c by spray pump 4b, and the water sprayed from the first spray device 4c falls below successively along the outside of heat transfer nest of tubes 4a.The spraying water fallen carries out heat exchange with the low pressure steam of heat transfer nest of tubes 4a internal flow, a part of spraying water evaporation.The spraying water of evaporation is taken out by blower fan 4d and is drawn, and discharges into the atmosphere together with air.
Condenser in the past, cooling waterpump, cooling water pipe, cooling tower can replace with 1 evaporative condenser of the compact structure with identical function.
Power required for spray pump 4b is much less than the power of cooling waterpump 6 (in Fig. 1), therefore significantly can reduce power consumption.Further, do not need cooling water pipe equipment, this part installation cost also can significantly reduce.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (10)
1. the double-work medium cycle generating system of used heat in recovered flue gas, is characterized in that, comprising: steam generator, decompressor, generator, condenser, working medium pump and direct contact type waste heat recovery plant;
Described steam generator, for being heated working medium by the used heat in flue gas, being become high pressure steam by described working medium and entering described decompressor;
Described decompressor, for working under the driving of described high pressure steam;
Described generator, is coaxially connected with described decompressor, generates electricity under the driving of described decompressor;
Described condenser, is cooled to liquid refrigerant for the low pressure steam working medium of being discharged by described decompressor;
Described working medium pump, for being delivered to described steam generator by the liquid refrigerant of discharging from described condenser;
Described direct contact type waste heat recovery plant, for receiving the flue gas of discharging from described steam generator, the thermal medium in described direct contact type waste heat recovery plant and described flue gas directly contact the heat in recovered flue gas.
2. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 1, it is characterized in that, described direct contact type waste heat recovery plant comprises: flue gas channel, trickle equipment;
Described thermal medium is water;
The flue gas that described steam generator is discharged is passed in described flue gas channel;
Described trickle equipment, for carrying out trickle to the described flue gas flowed through in described flue gas channel.
3. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 2, it is characterized in that, described trickle equipment comprises multiple nozzle;
Or,
Described trickle equipment is water spraying tray, and described water spraying tray comprises base plate and side plate, and the surrounding of described base plate is surrounded by described side plate; Described base plate comprises multiple trickle hole.
4. the double-work medium cycle generating system of used heat in the recovered flue gas according to Claims 2 or 3, is characterized in that, also comprise: be arranged on the preheating heat exchanger between described working medium pump and described steam generator;
Between described preheating heat exchanger and described direct contact type waste heat recovery plant, heat eliminating medium loop is set;
The described liquid refrigerant flowing through described preheating heat exchanger is heated by the heat that described direct contact type waste heat recovery plant reclaims by described heat eliminating medium loop; Described steam generator is supplied to by the liquid refrigerant after heating.
5. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 4, is characterized in that, described heat eliminating medium loop arranges side loop; Described heat eliminating medium loop is provided with first group of valve, described side loop is arranged second group of valve;
Described first group of valve open, when described second group of valve turns off, described preheating heat exchanger and described direct contact type waste heat recovery plant carry out heat exchange by described heat eliminating medium loop;
Or described first group of valve turns off, and during described second group of valve open, described direct contact type waste heat recovery plant carries out heat exchange by described side loop and heating load;
Or described first group of valve open, when described second group of valve is also opened, described direct contact type waste heat recovery plant carries out heat exchange with described preheating heat exchanger and heating load simultaneously.
6. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 4, is characterized in that, described heat eliminating medium loop arranges water quality survey device;
Described water quality survey device, for adjusting the Among Corrosive Factors of the heat eliminating medium in described heat eliminating medium loop.
7. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 5, is characterized in that, described heat eliminating medium loop arranges water quality survey device;
Described water quality survey device, for adjusting the Among Corrosive Factors of the heat eliminating medium in described heat eliminating medium loop.
8. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 1, it is characterized in that, described condenser is evaporative condenser;
Described evaporative condenser comprises: the first spray device, heat transfer nest of tubes, spray pump and blower fan;
Described heat transfer nest of tubes, the low pressure steam working medium of discharging for making described decompressor is circulation in pipe;
Described first spray device, sprays on the surface of described heat transfer nest of tubes for the spraying water sent by described spray pump;
Described blower fan, for drying to described heat transfer nest of tubes surface.
9. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 4, it is characterized in that, described condenser is evaporative condenser;
Described evaporative condenser comprises: the first spray device, heat transfer nest of tubes, spray pump and blower fan;
Described heat transfer nest of tubes, the low pressure steam working medium of discharging for making described decompressor is circulation in pipe;
Described first spray device, sprays on the surface of described heat transfer nest of tubes for the spraying water sent by described spray pump;
Described blower fan, for drying to described heat transfer nest of tubes surface.
10. the double-work medium cycle generating system of used heat in recovered flue gas according to claim 5, it is characterized in that, described condenser is evaporative condenser;
Described evaporative condenser comprises: the first spray device, heat transfer nest of tubes, spray pump and blower fan;
Described heat transfer nest of tubes, the low pressure steam working medium of discharging for making described decompressor is circulation in pipe;
Described first spray device, sprays on the surface of described heat transfer nest of tubes for the spraying water sent by described spray pump;
Described blower fan, for drying to described heat transfer nest of tubes surface.
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| CN201410568471.2A CN104343478B (en) | 2014-10-22 | 2014-10-22 | The double-work medium cycle generating system of used heat in a kind of recovered flue gas |
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| CN201410568471.2A CN104343478B (en) | 2014-10-22 | 2014-10-22 | The double-work medium cycle generating system of used heat in a kind of recovered flue gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515969A (en) * | 2017-07-31 | 2017-12-26 | 北京空间飞行器总体设计部 | The space consuming type heat radiation working medium recovery method of material can be recycled based on flexibility |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107515969A (en) * | 2017-07-31 | 2017-12-26 | 北京空间飞行器总体设计部 | The space consuming type heat radiation working medium recovery method of material can be recycled based on flexibility |
| CN107515969B (en) * | 2017-07-31 | 2021-08-06 | 北京空间飞行器总体设计部 | Space consumption type heat dissipation working medium recovery method based on flexible recyclable material |
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| CN104343478B (en) | 2016-05-04 |
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