CN202902797U - Combined heat and power hot air drying system - Google Patents
Combined heat and power hot air drying system Download PDFInfo
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- CN202902797U CN202902797U CN 201220477140 CN201220477140U CN202902797U CN 202902797 U CN202902797 U CN 202902797U CN 201220477140 CN201220477140 CN 201220477140 CN 201220477140 U CN201220477140 U CN 201220477140U CN 202902797 U CN202902797 U CN 202902797U
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Abstract
The utility model discloses a combined heat and power hot air drying system which comprises a fuel supplying subsystem, a prime motor electricity generating subsystem, a hot air generation subsystem and a hot air drying subsystem. The fuel supplying subsystem is used for providing fuel for the prime motor electricity generating subsystem. The prime motor electricity generating subsystem comprises a prime motor and a generator. The prime motor directly outputs electric power or drives the motor to generate electricity, and tail gas / cooling water discharged by the prime motor flows into the hot air generation subsystem. The tail gas / cooling water discharged by the prime motor is acted on air to generate hot air to flow into the hot air drying subsystem. Hot air produced by the hot air generation subsystem is utilized by the hot air drying subsystem to dry or dry off materials. According to the combined heat and power hot air drying system, the electric power and the hot air can be provided at the same time, the hot air is used for drying and baking the materials to achieve gradient utilization of energy, and useful energy loss of the fuel is reduced.
Description
Technical field
The utility model relates to a kind of high efficiency of energy and utilizes system, more specifically, relates to the integrated system of a kind of cogeneration and hot air drying system, i.e. hot blast, the air-dry drying system of Electricity Federation heat production.
Background technology
Hot-blast stove is widely applied in industries such as pottery, chemical industry, building materials, feed, papermaking, leather, households as the visual plant of modern industry heat drying or baking material.Hot-blast stove mainly comprises direct-type hot-blast stove and indirect hot air stove.In the direct-type hot-blast stove, the high-temperature combustion gas that fuel obtains after combustion reaction further contacts with outside air, directly enters hothouse or bakery after being mixed into a certain temperature, and material contacts with being dried, heating, transpiring moisture, thus dry products obtained.In indirect hot air stove, the fuel combustion liberated heat at first is used for heating steam, heat conduction wet goods heating agent, then utilizes heating agent to add hot-air by heat exchanger and produces hot blast.
The temperature of fuel combustion is higher, even more than 1000 ℃, the temperature that produces hot blast is then lower, generally below 300 ℃.Therefore in the process that hot blast produces, the grade of energy reduces greatly, and exergy loss is very large.Yet about the patented technology of high-efficient hot air furnace, mostly be conceived to the raising of Thermal Efficiency of Hot Blast Stoves at present, seldom have from the angle that improves exergy efficiency to come hot-blast stove is improved.Chinese invention patent CN1710350A comes the externally acting of expanding of the cold wind of heating high-pressure, the cold wind after then will heating by the body of heater chuck in turbine, the hot-air after the expansion can be used as hot blast output, also further heat exchange, hot water preparing.The power hot-blast stove of this invention can externally provide hot blast, hot water and electric power, has improved the utilization rate of energy, has reduced exergy loss.But this hot-blast stove adopts the chuck heating, and heat exchange efficiency is lower, and the pressure of high-pressure hot wind also should not be too high, and overall generating efficiency is lower.
Based on above-mentioned description, need the rational system of a cover badly, adopt this system can further put forward high-octane utilization rate, reduce exergy loss.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of hot blast, the air-dry drying system of Electricity Federation heat production, carry out electricity generation system and hot-air system integrated, the high temperature that utilizes fuel combustion to produce generates electricity, and utilize the waste heat of prime mover discharge as the thermal source of hot blast maker, and the hot blast that the hot blast maker produces is used for drying, baking material, thus the cascade utilization of realization energy, significantly improve the exergy efficiency of hot air drying system, reduce the exergy loss of fuel.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
The hot air drying system that produce a kind of hot blast, Electricity Federation is characterized in that, comprises that fuel supply subsystem, prime mover power generation sub-system, hot blast generate subsystem, heated-air drying subsystem;
Fuel supply subsystem is connected with prime mover power generation sub-system, is used for providing fuel to prime mover power generation sub-system;
Prime mover power generation sub-system comprises prime mover, the direct output power of prime mover or drive generator (1) generating, and the tail gas that prime mover is discharged/cooling water flows into hot blast and generates subsystem;
The other end that hot blast generates subsystem links to each other with the heated-air drying subsystem, and hot blast generates subsystem the tail gas/cooling water of prime mover discharge is acted on air generation hot blast and flows into the heated-air drying subsystem;
Heated-air drying or material drying that the utilization of heated-air drying subsystem produces.
As preferably, described hot blast generates subsystem and comprises the hot blast maker, and the hot blast maker utilizes the tail gas that prime mover discharges/cooling water and air or heated-air drying subsystem circulation wind facies effect generation to satisfy the required hot blast of drying process.
As preferably, the inner air inclusion mixing chamber of described hot blast maker is directly sneaked into the circulated air of heated air or heated-air drying subsystem in the tail gas that described prime mover discharges by gas mixer chamber, forms hot blast.
As preferably, described hot blast maker inside comprises heat exchanger, with the heat transferred heated air of tail gas or the circulated air of heated-air drying subsystem, forms hot blast by heat exchanger.
As preferably, the inner air inclusion mixing chamber of described hot blast maker and heat exchanger, utilize the cooling water preheated air of prime mover discharge or the circulated air of heated-air drying subsystem by heat exchanger first, and then sneak in the tail gas by the circulated air that gas mixer chamber will be preheated air or heated-air drying subsystem, form hot blast.
As preferably, described prime mover is internal combustion engine, gas turbine or fuel cell.
As preferably, described fuel is liquid fuel or fuel gas.
As preferably, described liquid fuel is fuel oil, fuel alcohol, fuel methanol or dimethyl ether.
As preferably, described fuel gas is natural gas, liquefied petroleum gas, artificial coal gas, coal bed gas, hydrogen or biogas.
The beneficial effects of the utility model are, because the utility model carries out electricity generation system and hot-air system integrated, the high temperature driven prime mover that utilizes fuel combustion to produce drives the generator generating, utilize the tail gas/cooling water of prime mover discharge as the thermal source of hot blast maker, electric power and hot blast can be provided simultaneously, thereby realize the cascade utilization of energy, reduced the exergy loss of fuel.Include gas mixer chamber and heat exchanger in the hot blast maker, so can by heat exchanger prime mover be discharged the heat transferred air of cooling water or the circulated air of heated-air drying subsystem first, carry out preheating, and then sneak in the high-temperature flue gas by the circulated air that gas mixer chamber will be preheated air or heated-air drying subsystem, form hot blast.Perhaps by heat exchanger with the heat transferred heated air of tail gas or the circulated air of heated-air drying subsystem, form hot blast, select different schemes according to different demands and different prime mover type, have flexibility.Again because prime mover can be selected gas turbine, internal combustion engine, fuel cell; Fuel can be liquid fuel, includes but not limited to fuel oil, fuel alcohol, fuel methanol, dimethyl ether etc., also can be fuel gas, includes but not limited to natural gas, liquefied petroleum gas, artificial coal gas, coal bed gas, hydrogen, biogas etc.So this system has the characteristics such as the convenience of realization, strong adaptability, available fuel type is very many, and fuel cost is also very low, and waste heat has been played the effect of recycling, and has reduced air pollution.
Description of drawings
Fig. 1 is the composition structural representation of hot blast described in the utility model, the air-dry drying system of Electricity Federation heat production;
Fig. 2 is the composition structural representation of the first embodiment of the hot blast that provides of the utility model, the air-dry drying system of Electricity Federation heat production;
Fig. 3 is the composition structural representation of the second embodiment of the hot blast that provides of the utility model, the air-dry drying system of Electricity Federation heat production;
Fig. 4 is the composition structural representation of the third embodiment of the hot blast that provides of the utility model, the air-dry drying system of Electricity Federation heat production.
Among the figure:
1, generator; 2, gas turbine; 3, hot blast maker; 4, by material drying; 5, gas mixer chamber; 6, heat exchanger; 7, internal combustion engine; 8, fuel cell.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
Fig. 1 is the hot blast that provides of the utility model, the composition structural representation of the air-dry drying system of Electricity Federation heat production.As shown in Figure 1, fuel supply subsystem links to each other by the fuel inlet of pipeline with prime mover power generation sub-system, is used for passing into fuel to prime mover power generation sub-system.Prime mover power generation sub-system comprises prime mover, generates subsystem by pipeline and hot blast and is connected.The Conversion of Energy that prime mover is emitted fuel combustion is 1 generating of power drawing generator, perhaps directly pass through the electrochemical reaction output power in prime mover, and discharge tail gas/cooling water flows to hot blast generation subsystem.When using gas turbine 2 or thing fuel cell 8 as prime mover, discharge be tail gas, tail gas directly flows to hot blast and generates subsystem.When using internal combustion engine 7 as prime mover, the tail gas of discharging from internal combustion engine 7 and jacket-cooling water directly flow to hot blast and generate subsystem.The other end that hot blast generates subsystem links to each other with the heated-air drying subsystem by pipeline, tail gas/cooling water that prime mover is discharged generates with air or the effect of heated-air drying subsystem circulation wind facies and satisfies the required hot blast of drying process, and hot blast is by pipeline inflow heated-air drying subsystem.The heated-air drying subsystem utilizes hot blast to generate the heated-air drying of subsystem generation or dries by material drying 4.The high temperature that native system utilizes fuel combustion to produce generates electricity, and utilizes the tail gas/cooling water of prime mover discharge as the thermal source of hot blast generation subsystem, electric power and hot blast can be provided simultaneously, thereby realize the cascade utilization of energy, has reduced the exergy loss of fuel.
Fig. 2 is the composition structural representation of the first embodiment of the hot blast that provides of the utility model, the air-dry drying system of Electricity Federation heat production.In present embodiment, as shown in Figure 2, act as a fuel with natural gas, the natural gas Lower heat value is got 36MJ/Nm
3Choose gas turbine 2 as prime mover, fuel burns in gas turbine 2, drives gas turbine 2 outputting powers, and gas turbine 2 drives generator 1 output power.The high-temperature tail gas that gas turbine 2 is discharged enters hot blast maker 3.Under 15 ℃ of air inlets, standard atmosphere condition, the generating thermal efficiency is 24.3%, and the exhaust temperature of gas turbine 2 dischargings is 505 ℃.In hot blast maker 3, be provided with gas mixer chamber 5, be used for gas is mixed.In this embodiment, directly air is sneaked in the high-temperature tail gas by gas mixer chamber 5, form hot blast, the temperature by the blending amount of regulating air is regulated hot blast forms 120 ℃ of hot blasts that meet technological requirement.The hot blast that meets technological requirement is transfused in the heated-air drying subsystem, is used for drying or baking by material drying 4 in the heated-air drying subsystem.But the energy consumption efficiency of this hot blast, the air-dry drying system of Electricity Federation heat production is 34.0%.
Fig. 3 is the composition structural representation of the second embodiment of the hot blast that provides of the utility model, the air-dry drying system of Electricity Federation heat production.In present embodiment, as shown in Figure 3, act as a fuel with natural gas, the natural gas Lower heat value is got 36MJ/Nm
3Choose internal combustion engine 7 and be prime mover, fuel burns in internal combustion engine 7, drives internal combustion engine 7 outputting powers, and internal combustion engine 7 drives generator 1 output power.High-temperature tail gas and cooling water that internal combustion engine 7 is discharged enter hot blast maker 3.Under 15 ℃ of air inlets, standard atmosphere condition, the generating thermal efficiency is 35.6%, and the high-temperature tail gas temperature of arranging is 431 ℃, and the temperature of cooling water is 90 ℃.In hot blast maker 3, be provided with heat exchanger 6, be used for gas is carried out preheating.In the present embodiment, the heat transferred of cooling water is preheated the circulated air of air or heated-air drying subsystem by heat exchanger 6, and then the circulated air that will be preheated air or heated-air drying subsystem is sneaked in the high temperature exhaust gases of internal combustion engines, temperature by the blending amount of regulating air is regulated hot blast forms 120 ℃ of hot blasts that meet technological requirement.The hot blast that meets technological requirement is used to drying or baking by material drying 4.But the energy consumption efficiency of this hot blast, the air-dry drying system of Electricity Federation heat production is 43.3%.
Fig. 4 is the composition structural representation of the third embodiment of the hot blast that provides of the utility model, the air-dry drying system of Electricity Federation heat production.In present embodiment, as shown in Figure 4, act as a fuel with natural gas, the natural gas Lower heat value is got 36MJ/Nm
3Take high temperature solid oxide fuel cell 8 as prime mover, electrochemical reaction occurs in fuel and air in fuel cell 8, externally output power.The high-temperature tail gas that fuel cell 8 is discharged enters hot blast maker 3.Under 15 ℃ of air inlets, standard atmosphere condition, the generating thermal efficiency is 45%, and the smoke discharging temperature is 500 ℃.In hot blast maker 3, be provided with gas mixer chamber 5, be used for the circulated air of high-temperature tail gas with air or heated-air drying subsystem mixed, the temperature by the blending amount of regulating air is regulated hot blast forms 120 ℃ of hot blasts that meet technological requirement.But the energy consumption efficiency of this hot blast, the air-dry drying system of Electricity Federation heat production is 53.0%.
The related fuel of the utility model can be liquid fuel, include but not limited to fuel oil, fuel alcohol, fuel methanol, dimethyl ether etc., can be gaseous fuel also, include but not limited to natural gas, liquefied petroleum gas, artificial coal gas, coal bed gas, hydrogen, biogas etc.Related prime mover includes but not limited to internal combustion engine 7, gas turbine 2, fuel cell 8 etc.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described just in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, and these modes all will fall within the protection domain of the present utility model.
Claims (9)
1. the hot air drying system that produce hot blast, Electricity Federation is characterized in that, comprises that fuel supply subsystem, prime mover power generation sub-system, hot blast generate subsystem, heated-air drying subsystem;
Fuel supply subsystem is connected with prime mover power generation sub-system, is used for providing fuel to prime mover power generation sub-system;
Prime mover power generation sub-system comprises prime mover, the direct output power of prime mover or drive generator (1) generating, and the tail gas that prime mover is discharged/cooling water flows into hot blast and generates subsystem;
The other end that hot blast generates subsystem links to each other with the heated-air drying subsystem, and hot blast generates subsystem the tail gas/cooling water of prime mover discharge is acted on air generation hot blast and flows into the heated-air drying subsystem;
Heated-air drying or material drying that the utilization of heated-air drying subsystem produces.
2. hot blast according to claim 1, the air-dry drying system of Electricity Federation heat production, it is characterized in that: described hot blast generates subsystem and comprises hot blast maker (3), and hot blast maker (3) utilizes the tail gas that prime mover discharges/cooling water and air or heated-air drying subsystem circulation wind facies effect generation to satisfy the required hot blast of drying process.
3. the hot air drying system that produces of hot blast according to claim 2, Electricity Federation, it is characterized in that: the inner air inclusion mixing chamber of described hot blast maker (3) (5), directly the circulated air of heated air or heated-air drying subsystem is sneaked in the tail gas of described prime mover discharge by gas mixer chamber (5), form hot blast.
4. the hot air drying system that produces of hot blast according to claim 2, Electricity Federation, it is characterized in that: described hot blast maker (3) inside comprises heat exchanger (6), with the heat transferred heated air of tail gas or the circulated air of heated-air drying subsystem, form hot blast by heat exchanger (6).
5. the hot air drying system that produces of hot blast according to claim 2, Electricity Federation, it is characterized in that: the inner air inclusion mixing chamber of described hot blast maker (3) (5) and heat exchanger (6), utilize the cooling water preheated air of prime mover discharge or the circulated air of heated-air drying subsystem by heat exchanger (6) first, and then by gas mixer chamber (5) air that is preheated or the circulated air of heated-air drying subsystem are sneaked in the tail gas, form hot blast.
6. the hot air drying system that produces of hot blast according to claim 1, Electricity Federation, it is characterized in that: described prime mover is internal combustion engine (7) or gas turbine (2) or fuel cell (8).
7. the hot air drying system that produces of hot blast according to claim 1, Electricity Federation, it is characterized in that: described fuel is liquid fuel or fuel gas.
8. the hot air drying system that produces of hot blast according to claim 7, Electricity Federation, it is characterized in that: described liquid fuel is fuel oil, fuel alcohol, fuel methanol or dimethyl ether.
9. the hot air drying system that produces of hot blast according to claim 7, Electricity Federation, it is characterized in that: described fuel gas is natural gas, liquefied petroleum gas, artificial coal gas, coal bed gas, hydrogen or biogas.
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CN 201220477140 CN202902797U (en) | 2012-09-17 | 2012-09-17 | Combined heat and power hot air drying system |
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CN 201220477140 CN202902797U (en) | 2012-09-17 | 2012-09-17 | Combined heat and power hot air drying system |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107721144A (en) * | 2017-10-31 | 2018-02-23 | 佛山市派能机电有限公司 | Glass factory's integrated energy system |
CN108679932A (en) * | 2018-07-19 | 2018-10-19 | 上海力顺燃机科技有限公司 | Using the jet drying system and jet drying method of combustion gas tail gas |
CN108854123A (en) * | 2018-07-19 | 2018-11-23 | 上海力顺燃机科技有限公司 | Combustion gas tail gas and high-temperature flue gas mixing jetting drying system and jet drying method |
CN110918610A (en) * | 2019-12-09 | 2020-03-27 | 中城绿建科技有限公司 | Method for biological drying aeration by recycling power generation waste heat of pyrolysis combustible gas |
CN111595143A (en) * | 2020-04-27 | 2020-08-28 | 大连欧谱纳透平动力科技有限公司 | Gas turbine combined heat and power system and method for drying titanium dioxide |
CN112944860A (en) * | 2021-02-09 | 2021-06-11 | 嘉兴知途信息咨询有限公司 | Fabric drying method |
-
2012
- 2012-09-17 CN CN 201220477140 patent/CN202902797U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107721144A (en) * | 2017-10-31 | 2018-02-23 | 佛山市派能机电有限公司 | Glass factory's integrated energy system |
CN108679932A (en) * | 2018-07-19 | 2018-10-19 | 上海力顺燃机科技有限公司 | Using the jet drying system and jet drying method of combustion gas tail gas |
CN108854123A (en) * | 2018-07-19 | 2018-11-23 | 上海力顺燃机科技有限公司 | Combustion gas tail gas and high-temperature flue gas mixing jetting drying system and jet drying method |
CN110918610A (en) * | 2019-12-09 | 2020-03-27 | 中城绿建科技有限公司 | Method for biological drying aeration by recycling power generation waste heat of pyrolysis combustible gas |
CN111595143A (en) * | 2020-04-27 | 2020-08-28 | 大连欧谱纳透平动力科技有限公司 | Gas turbine combined heat and power system and method for drying titanium dioxide |
CN112944860A (en) * | 2021-02-09 | 2021-06-11 | 嘉兴知途信息咨询有限公司 | Fabric drying method |
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Granted publication date: 20130424 Termination date: 20200917 |