CN107605558A - The co-generation unit and its heat supply method of hot-water boiler - Google Patents
The co-generation unit and its heat supply method of hot-water boiler Download PDFInfo
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- CN107605558A CN107605558A CN201711088766.XA CN201711088766A CN107605558A CN 107605558 A CN107605558 A CN 107605558A CN 201711088766 A CN201711088766 A CN 201711088766A CN 107605558 A CN107605558 A CN 107605558A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 165
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 87
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005619 thermoelectricity Effects 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Classifications
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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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Abstract
The invention discloses a kind of co-generation unit of hot-water boiler, including boiler, electricity generation system and heat network system, described boiler is connected by supply channel with electricity generation system, and boiler provides delivery to electricity generation system, hot water to heat energy to electricity generation system；Described electricity generation system connects heat network system by supply channel, and electricity generation system exports cooling hot water to heat network system and provides heat energy；Described heat network system connects electricity generation system by water return pipeline, and cold water is delivered to electricity generation system by heat network system, and cold water absorbs the heat energy of electricity generation system release；Described electricity generation system connects boiler by water return pipeline, and electricity generation system exports preheating hot water to boiler.The present invention thermal output of increase boiler, raising efficiency, solves the problems, such as that hot-water boiler can not oepration at full load on the premise of heat supply network balance is not changed.Preliminary heat utilization generating is carried out using this heat supply method, can relax to a certain extent boiler room from electricity consumption, improve boiler operating efficiency, reduce energy consumption.
Description
Technical field
The invention belongs to the technical field of cogeneration of heat and power, a kind of co-generation unit more particularly, to hot-water boiler and its
Heat supply method.
Background technology
Existing Industrial Boiler cogeneration of heat and power technology, generally referred to as steam are entered back pressure turbine acting and generated electricity, and finish work(
Steam meet heat demand again；Or steam-extracting type unit is used, a part of steam is generated electricity, and a part of steam carries out heat supply.
Due to the limitation of electric turbine, such a cogeneration of heat and power is only suitable for centralized a wide range of heat demand user, and quantity of steam compares
Big occasion.
But some production heating boilers are using water heater, but the hot water parameter used in production and living is compared with the specified ginseng of boiler
Number is low, and boiler is often in banking fire running status, and operating efficiency is relatively low, and energy utilization rate is not high.If make boiler in rated condition
During work, existing heat supply network balance can be destroyed again.
The content of the invention
The present invention in order to solve the problems, such as hot-water boiler to fail to operate at full capacity and caused by efficiency is low, energy consumption is higher,
And provide the co-generation unit and its heat supply method of a kind of hot-water boiler.
The technical solution used in the present invention is：
The co-generation unit of the hot-water boiler of the present invention, including boiler, electricity generation system and heat network system, described boiler pass through
Supply channel is connected with electricity generation system, and boiler provides delivery to electricity generation system, hot water to heat energy to electricity generation system；Described
Electricity generation system connects heat network system by supply channel, and electricity generation system exports cooling hot water to heat network system and provides heat energy；Institute
The heat network system stated connects electricity generation system by water return pipeline, and cold water is delivered to electricity generation system by heat network system, and cold water absorbs hair
The heat energy of electric system release；Described electricity generation system connects boiler by water return pipeline, and electricity generation system is exported to boiler and preheated
Hot water.
Described electricity generation system includes evaporator, expanding machine, generator, condenser, oil-liquid separator and organic working medium pump,
Described evaporator, expanding machine, condenser, oil-liquid separator and organic working medium pump, which is sequentially connected and formed by pipeline, to be recycled back to
Road, expanding machine are also associated with generator.
The outlet of described boiler is connected with supply channel, evaporator of the supply channel Jing Guo electricity generation system, then with heat supply network
The feed water inlet connection that system is once netted.
The outlet of described boiler is also connected with the feed water inlet that heat network system is once netted by direct supply channel.
The water return outlet that described heat network system is once netted is connected with water return pipeline, condensation of the water return pipeline Jing Guo electricity generation system
Device, then be connected with the entrance of boiler.
The condenser of described electricity generation system also connects economizer entrance, the outlet of economizer and boiler by water return pipeline
Entrance be connected.
Supply channel between described boiler export and electricity generation system evaporator is provided with the first valve, electricity generation system evaporation
The supply channel that device and heat network system are once netted between feed water inlet is provided with the second valve, and once net supplies boiler export with heat network system
Direct supply channel between the mouth of a river is provided with the 3rd valve, and the water return pipeline between electricity generation system condenser and boiler inlet is provided with
4th valve, the 4th valve are in parallel with economizer loop.
The thermoelectricity co-generating heat supplying method of the hot-water boiler of the present invention, comprises the following steps：
Step 1, the hot water that boiler exports in the operating condition, pass through evaporator of the supply channel Jing Guo electricity generation system, evaporator
The partial heat energy of hot water release is absorbed, hot water temperature's reduction reaches heat network system and once nets required temperature, forms cooling hot water；
Step 2, cooling hot water are delivered to the feed water inlet that heat network system once nets by supply channel, and cooling hot water is in once net
Interior circulation, and provide heat energy by heat exchanger for secondary network, cooling hot water cool the water return outlet that the cold water to be formed flow direction is once netted；
Step 3, organic working medium absorb heat energy in the presence of organic working medium pump, into evaporator, enter back into expanding machine acting simultaneously
Exported to generator, generator output electric energy, enter condenser after organic working medium expansion output work, the condensation in condenser discharges
Heat, then organic working medium through oil-liquid separator handle return to organic working medium pump, circulated again；
Step 4, cold water condense the heat of release by condenser of the water return pipeline Jing Guo electricity generation system in cold water absorptive condenser
Amount, cold water temperature raise to form preheating hot water；
Step 5, preheating hot water are delivered to the entrance of boiler by water return pipeline, and boiler heats shape again to preheating hot water
Into hot water, recycled.
The hot water that boiler exports in the operating condition in described step one, heat supply network system is delivered to by direct supply channel
The feed water inlet of unified net.
Hot water is preheated in described step five economizer entrance is also delivered to by water return pipeline, it is pre- again through economizer
To the entrance of boiler, boiler carries out being thermally formed hot water heated conveying to the preheating hot water after preheating, recycles.
The present invention has the advantages and positive effects of：
The present invention thermal output of increase boiler, raising efficiency, solves hot water at this stage on the premise of existing heat supply network balance is not changed
Boiler can not oepration at full load the problem of.Preliminary heat utilization generating is carried out using this heat supply method, pot can be relaxed to a certain extent
Stove room from electricity consumption, while improve boiler operating efficiency, reduce energy consumption.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein：
1：Boiler 2：Electricity generation system
3：Heat network system 4：Supply channel
5：Water return pipeline 6：Evaporator
7：Expanding machine 8：Generator
9：Condenser 10：Oil-liquid separator
11：Organic working medium pump 12：Direct supply channel
13：Economizer 14：First valve
15：Second valve 16：3rd valve
17：4th valve 18：Once net
19：Secondary network.
Embodiment
Referring to the drawings and embodiment the present invention will be described in detail.
As shown in figure 1, the co-generation unit of the hot-water boiler of the present invention, including boiler 1, electricity generation system 2 and heat supply network system
System 3, described boiler is connected by supply channel 4 with electricity generation system, and boiler is by delivery to electricity generation system, and hot water is to generating
System provides heat energy；Described electricity generation system connects heat network system by supply channel, and electricity generation system exports to heat network system to drop
Warm water simultaneously provides heat energy；Described heat network system connects electricity generation system by water return pipeline 5, and cold water is delivered to by heat network system
Electricity generation system, cold water absorb the heat energy of electricity generation system release；Described electricity generation system connects boiler by water return pipeline, and generate electricity system
Unite and export preheating hot water to boiler.
Described electricity generation system 2 include evaporator 6, expanding machine 7, generator 8, condenser 9, oil-liquid separator 10 with it is organic
Working medium pump 11, described evaporator, expanding machine, condenser, oil-liquid separator and organic working medium pump are sequentially connected simultaneously by pipeline
Circulation loop is formed, expanding machine is also associated with generator.
The outlet of described boiler is connected with supply channel, evaporator of the supply channel Jing Guo electricity generation system, then with heat supply network
The feed water inlet connection that system is once netted.
The outlet of described boiler is also connected with the feed water inlet that heat network system is once netted by direct supply channel 12.
The water return outlet that described heat network system is once netted is connected with water return pipeline, condensation of the water return pipeline Jing Guo electricity generation system
Device, then be connected with the entrance of boiler.
The condenser of described electricity generation system also connects the entrance of economizer 13, the outlet of economizer and pot by water return pipeline
The entrance of stove is connected.
Supply channel between described boiler export and electricity generation system evaporator is provided with the first valve 14, and electricity generation system is steamed
The supply channel that hair device and heat network system are once netted between feed water inlet is provided with the second valve 15, and boiler export and heat network system are once
Direct supply channel between net feed water inlet is provided with the 3rd valve 16, the water return pipeline between electricity generation system condenser and boiler inlet
The 4th valve 17 is provided with, the 4th valve is in parallel with economizer loop.
The thermoelectricity co-generating heat supplying method of the hot-water boiler of the present invention, comprises the following steps：
Step 1, the hot water that boiler exports in the operating condition, pass through evaporator of the supply channel Jing Guo electricity generation system, evaporator
The partial heat energy of hot water release is absorbed, hot water temperature's reduction reaches heat network system and once nets required temperature, forms cooling hot water；
Step 2, cooling hot water are delivered to the feed water inlet that heat network system once nets by supply channel, and cooling hot water is in once net
Interior circulation, and provide heat energy by heat exchanger for secondary network, cooling hot water cool the water return outlet that the cold water to be formed flow direction is once netted；
Step 3, organic working medium absorb heat energy in the presence of organic working medium pump, into evaporator, enter back into expanding machine acting simultaneously
Exported to generator, generator output electric energy, enter condenser after organic working medium expansion output work, the condensation in condenser discharges
Heat, then organic working medium through oil-liquid separator handle return to organic working medium pump, circulated again；
Step 4, cold water condense the heat of release by condenser of the water return pipeline Jing Guo electricity generation system in cold water absorptive condenser
Amount, cold water temperature raise to form preheating hot water；
Step 5, preheating hot water are delivered to the entrance of boiler by water return pipeline, and boiler heats shape again to preheating hot water
Into hot water, recycled.
The hot water that boiler exports in the operating condition in described step one, heat supply network system is delivered to by direct supply channel
The feed water inlet of unified net.
Hot water is preheated in described step five economizer entrance is also delivered to by water return pipeline, it is pre- again through economizer
To the entrance of boiler, boiler carries out being thermally formed hot water heated conveying to the preheating hot water after preheating, recycles.
In the operating condition, the hot water temperature of output is higher than the temperature required by heat network system to boiler.Hot water is by generating electricity
The evaporator of system, the part energy of evaporator recovery hot water is allowed to be used for generating electricity.Under the cooling of electricity generation system, hot water reaches
After temperature needed for heat network system, leave electricity generation system and enter heat network system.In heat network system, cooling hot water follows in once net
Ring, heat is taken away by the recirculated water of secondary network by heat exchanger, temperature further reduces and forms cold water, then returns supply boiler and enters
Row reheating.During confession is returned, cold water carries out first time preheating via the condenser of electricity generation system, takes away in electricity generation system
Organic working medium expansion output work after condensation heat release, hot water disengaging once net before, afterwards respectively as electricity generation system
Thermal source and low-temperature receiver.
Electricity generation system is connected in parallel on the direct supply channel of boiler, original boiler operation situation is had no effect on, according to heat
Temperature required by net system, the 3rd valve closure state between adjusting boiler and once netting, control boiler provide to once net
Heat energy.And electricity generation system carries robot control system(RCS), first can be passed through according to the inlet and outlet hot water temperature of evaporator and condenser
The closure state of valve and the second valve is inputted to adjust the heat of electricity generation system, and electricity is exported on the premise of boiler heat supplying is met
Energy.And the 4th valve between electricity generation system condenser and boiler inlet, it is controllable directly conveyed from condenser to boiler it is pre-
Heat hot water flow, avoid the energy consumption of boiler.
The present invention thermal output of increase boiler, raising efficiency, solves at this stage on the premise of existing heat supply network balance is not changed
Hot-water boiler can not oepration at full load the problem of.Preliminary heat utilization generating is carried out using this heat supply method, can be delayed to a certain extent
With boiler room from electricity consumption, while improve the operating efficiency of boiler, reduce energy consumption.
Claims (10)
1. a kind of co-generation unit of hot-water boiler, including boiler, electricity generation system and heat network system, it is characterised in that：It is described
Boiler be connected by supply channel with electricity generation system, by delivery to electricity generation system, hot water provides boiler to electricity generation system
Heat energy；Described electricity generation system connects heat network system by supply channel, and electricity generation system exports cooling hot water simultaneously to heat network system
Heat energy is provided；Described heat network system connects electricity generation system by water return pipeline, and cold water is delivered to electricity generation system by heat network system,
Cold water absorbs the heat energy of electricity generation system release；Described electricity generation system connects boiler by water return pipeline, and electricity generation system is to boiler
Output preheating hot water.
2. the co-generation unit of hot-water boiler according to claim 1, it is characterised in that：Described electricity generation system includes
Evaporator, expanding machine, generator, condenser, oil-liquid separator and organic working medium pump, described evaporator, expanding machine, condensation
Device, oil-liquid separator and organic working medium pump are sequentially connected by pipeline and form circulation loop, and expanding machine is also associated with generator.
3. the co-generation unit of hot-water boiler according to claim 2, it is characterised in that：The outlet of described boiler connects
Supply channel, evaporator of the supply channel Jing Guo electricity generation system are connected to, then is connected with the feed water inlet that heat network system is once netted.
4. the co-generation unit of hot-water boiler according to claim 3, it is characterised in that：The outlet of described boiler with
The feed water inlet that heat network system is once netted also is connected by direct supply channel.
5. the co-generation unit of hot-water boiler according to claim 2, it is characterised in that：Described heat network system is once
The water return outlet of net is connected with water return pipeline, condenser of the water return pipeline Jing Guo electricity generation system, then is connected with the entrance of boiler.
6. the co-generation unit of hot-water boiler according to claim 5, it is characterised in that：Described electricity generation system it is cold
Condenser also connects economizer entrance by water return pipeline, and the outlet of economizer is connected with the entrance of boiler.
7. according to the co-generation unit of any described hot-water boilers of claim 3-6, it is characterised in that：Described boiler goes out
Mouth is provided with the first valve the supply channel between electricity generation system evaporator, and once net supplies electricity generation system evaporator with heat network system
Supply channel between the mouth of a river is provided with the second valve, and boiler export and heat network system once net the direct supply channel between feed water inlet
Be provided with the 3rd valve, the water return pipeline between electricity generation system condenser and boiler inlet is provided with the 4th valve, the 4th valve with
Economizer loop is in parallel.
8. a kind of thermoelectricity co-generating heat supplying method of hot-water boiler, comprises the following steps：
Step 1, the hot water that boiler exports in the operating condition, pass through evaporator of the supply channel Jing Guo electricity generation system, evaporator
The partial heat energy of hot water release is absorbed, hot water temperature's reduction reaches heat network system and once nets required temperature, forms cooling hot water；
Step 2, cooling hot water are delivered to the feed water inlet that heat network system once nets by supply channel, and cooling hot water is in once net
Interior circulation, and provide heat energy by heat exchanger for secondary network, cooling hot water cool the water return outlet that the cold water to be formed flow direction is once netted；
Step 3, organic working medium absorb heat energy in the presence of organic working medium pump, into evaporator, enter back into expanding machine acting simultaneously
Exported to generator, generator output electric energy, enter condenser after organic working medium expansion output work, the condensation in condenser discharges
Heat, then organic working medium through oil-liquid separator handle return to organic working medium pump, circulated again；
Step 4, cold water condense the heat of release by condenser of the water return pipeline Jing Guo electricity generation system in cold water absorptive condenser
Amount, cold water temperature raise to form preheating hot water；
Step 5, preheating hot water are delivered to the entrance of boiler by water return pipeline, and boiler heats shape again to preheating hot water
Into hot water, recycled.
9. the thermoelectricity co-generating heat supplying method of hot-water boiler according to claim 8, it is characterised in that：In described step one
The hot water that boiler exports in the operating condition, the feed water inlet that heat network system once nets is delivered to by direct supply channel.
10. the thermoelectricity co-generating heat supplying method of hot-water boiler according to claim 8, it is characterised in that：Described step five
Middle preheating hot water is also delivered to economizer entrance by water return pipeline, preheats the entrance for being delivered to boiler again through economizer,
Boiler carries out being thermally formed hot water to the preheating hot water after preheating, recycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088766.XA CN107605558A (en) | 2017-11-08 | 2017-11-08 | The co-generation unit and its heat supply method of hot-water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088766.XA CN107605558A (en) | 2017-11-08 | 2017-11-08 | The co-generation unit and its heat supply method of hot-water boiler |
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| CN107605558A true CN107605558A (en) | 2018-01-19 |
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ID=61085930
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| CN201711088766.XA Pending CN107605558A (en) | 2017-11-08 | 2017-11-08 | The co-generation unit and its heat supply method of hot-water boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715444A (en) * | 2019-10-29 | 2020-01-21 | 辽宁绿源能源环保科技集团有限责任公司 | Graded water return grate firing boiler system |
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|---|---|---|---|---|
| JPH1037717A (en) * | 1996-07-22 | 1998-02-10 | Toshiba Corp | Complex power generating facility |
| CN103032912A (en) * | 2013-01-21 | 2013-04-10 | 中国科学院广州能源研究所 | Solar integrated Rankine-Rankine system floor heating device |
| KR20140029253A (en) * | 2012-08-29 | 2014-03-10 | 가부시키가이샤 고베 세이코쇼 | Power generation and heating apparatus |
| CN103758594A (en) * | 2013-11-06 | 2014-04-30 | 北京中科华誉能源技术发展有限责任公司 | System for generating electricity by hot water generated by hot-water boiler and through expander |
| CN104676971A (en) * | 2014-12-23 | 2015-06-03 | 西安交通大学 | Brown coal pre-drying power-heat generation water recycling system of integrated absorption type heat pump |
| CN207673391U (en) * | 2017-11-08 | 2018-07-31 | 微特博（天津）新能源科技有限公司 | The co-generation unit of hot-water boiler |
-
2017
- 2017-11-08 CN CN201711088766.XA patent/CN107605558A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1037717A (en) * | 1996-07-22 | 1998-02-10 | Toshiba Corp | Complex power generating facility |
| KR20140029253A (en) * | 2012-08-29 | 2014-03-10 | 가부시키가이샤 고베 세이코쇼 | Power generation and heating apparatus |
| CN103032912A (en) * | 2013-01-21 | 2013-04-10 | 中国科学院广州能源研究所 | Solar integrated Rankine-Rankine system floor heating device |
| CN103758594A (en) * | 2013-11-06 | 2014-04-30 | 北京中科华誉能源技术发展有限责任公司 | System for generating electricity by hot water generated by hot-water boiler and through expander |
| CN104676971A (en) * | 2014-12-23 | 2015-06-03 | 西安交通大学 | Brown coal pre-drying power-heat generation water recycling system of integrated absorption type heat pump |
| CN207673391U (en) * | 2017-11-08 | 2018-07-31 | 微特博（天津）新能源科技有限公司 | The co-generation unit of hot-water boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715444A (en) * | 2019-10-29 | 2020-01-21 | 辽宁绿源能源环保科技集团有限责任公司 | Graded water return grate firing boiler system |
| CN110715444B (en) * | 2019-10-29 | 2021-08-10 | 辽宁绿源能源环保科技集团有限责任公司 | Graded water return grate firing boiler system |
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