CN209213910U - A kind of light coal complementary system realizing solar energy cascade and utilizing - Google Patents
A kind of light coal complementary system realizing solar energy cascade and utilizing Download PDFInfo
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- CN209213910U CN209213910U CN201821811193.9U CN201821811193U CN209213910U CN 209213910 U CN209213910 U CN 209213910U CN 201821811193 U CN201821811193 U CN 201821811193U CN 209213910 U CN209213910 U CN 209213910U
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- Prior art keywords
- heat exchanger
- air
- oil
- conduction oil
- air heat
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of light coal complementary system realizing solar energy cascade and utilizing, pass through the sequentially connected high temperature heat conductive oil-air heat exchanger of air pipeline including being located in boiler back end ductwork, air preheater and low temperature conduction oil-air heat exchanger, it further include solar thermal collector, solar thermal collector is connect by heat conducting oil pipe with high temperature heat conductive oil-air heat exchanger and low temperature conduction oil-air heat exchanger, wherein the oil outlet of solar thermal collector is connected with high temperature heat conductive oil-air heat exchanger oiler, the oiler of solar thermal collector is connected with low temperature conduction oil-air heat exchanger oil outlet, high temperature heat conductive oil-air heat exchanger oil outlet is connected with low temperature conduction oil-air heat exchanger oiler.The utility model heats conduction oil using solar energy as heat source；Combustion air is heated by three-level, is reached 350-400 DEG C or so, is significantly higher than original machine group, energy-saving effect is substantially improved.
Description
Technical field
The utility model belongs to coal-fired power generator set field, in particular to a kind of light coal for realizing that solar energy cascade utilizes is mutual
Complement system.
Background technique
The energy-saving and emission-reduction of Large-scale fire-electricity unit are the important energy source strategies of China.For adapt to electricity market fast development and
The immense pressure of energy-saving and emission-reduction improves the operational efficiency of heat power equipment, development of latent energy-saving potential has become each power plant's pay attention to day by day
Project.
In recent years in order to improve efficiency of plant, coal consumption is reduced, China greatly develops solar energy assisted coal fired electricity generation system, adds
Its fast engineering mimoir and commercial introduction.However, the scientific research and technology development for solar energy assisted coal fired power generation collects mostly
In in the integrated of solar energy and heat regenerative system, integration mode is relatively simple, warm area narrow distribution, it is difficult to realize the abundant of solar energy
Cascade utilization.
Summary of the invention
In order to solve the deficiencies in the prior art, clean energy resource is made full use of, especially solar energy is in coal-fired power generation field
Using the utility model provides a kind of light coal complementary system realizing solar energy cascade and utilizing.
Specifically provide the following technical solutions: a kind of light coal complementary system realizing solar energy cascade and utilizing, including it is located at pot
It is thermally conductive by the sequentially connected high temperature heat conductive oil-air heat exchanger of air pipeline, air preheater and low temperature in furnace back-end ductwork
Oil-air heat exchanger further includes solar thermal collector, and the solar thermal collector passes through heat conducting oil pipe and the high-temperature heat-conductive
Oil-air heat exchanger is connected with the low temperature conduction oil-air heat exchanger, wherein the oil outlet of solar thermal collector and the height
The oiler of warm conduction oil-air heat exchanger is connected, the oiler of the solar thermal collector and the low temperature conduction oil-air
The oil outlet of heat exchanger is connected, the oil outlet of the high temperature heat conductive oil-air heat exchanger and the low temperature conduction oil-air heat-exchange
The oiler of device is connected.
Further, air preheat process is divided into three-level, and low temperature conduction oil-air heat exchanger gas outlet passes through sky
Feed channel is connected with the air inlet of air preheater, the gas outlet of air preheater and high temperature heat conductive oil-air heat exchanger into
Port is connected.
Further, this system further includes cooling device, is located at the oil outlet of the high temperature heat conductive oil-air heat exchanger
Between the oiler of the low temperature conduction oil-air heat exchanger.
Preferably, the cooling device is conduction oil-condensation water- to-water heat exchanger, inside there is condensing water conduit.
Further, the solar thermal collector is trough type solar heat-collector, and internal working medium is conduction oil.
The utility model has the following beneficial effects:
1. solar energy, which successively heats high temperature, enters stove air, condensed water, low temperature cold air, within the scope of big warm area, multiple working medium
Solar energy and coal unit are integrated, the abundant cascade utilization of solar energy is realized.
2. boiler auxiliary combustion air first passes through low temperature conduction oil-air heat exchanger preheating, then enter air preheater substantially
Flue gas heat is absorbed, is heated later by high temperature heat conductive oil, final temperature is significantly higher than original machine group up to 350-400 DEG C or so, section
Energy effect is substantially improved.
3. the system flexibly opens, according to the difference of unit parameter and load, extraction different location condensed water, which enters, is led
Hot oil-condensation water- to-water heat exchanger, realizes being flexibly matched with for energy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for one embodiment of light coal complementary system that the utility model realizes that solar energy cascade utilizes；
Fig. 2 is the structural schematic diagram of another embodiment of the utility model；
Description of symbols:
1-high temperature heat conductive oil-air heat exchanger, 2-air preheaters, 3-low temperature conduction oils-air heat exchanger, 4-are too
Positive energy heat collector, 5-conduction oils-condensation water- to-water heat exchanger.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, being equipped with air preheater 2 in coal-burning boiler back-end ductwork, have with it by what air pipeline was connected
High temperature heat conductive oil-air heat exchanger 1 and low temperature conduction oil-air heat exchanger 3, set up separately in 2 two sides of air preheater, combustion air
It is first tentatively heated in low temperature conduction oil-air heat exchanger 3 using low temperature conduction oil, is absorbed subsequently into air preheater 2
Gas energy is finally heated to 350-400 DEG C by high temperature heat conductive oil in high temperature heat conductive oil-air heat exchanger, into burner hearth.
Solar thermal collector 4 is equipped in thermally conductive oil return line, oil outlet enters with high temperature heat conductive oil-air heat exchanger 1
Hydraulic fluid port is connected, and oiler is connected with low temperature conduction oil-air heat exchanger 3 oil outlet, high temperature heat conductive oil-air heat exchanger 1
Oil outlet be then connected with low temperature conduction oil-air heat exchanger 3 oiler.Conduction oil is heated through solar thermal collector 4, is entered
High temperature heat conductive oil-air heat exchanger 1 heats high temperature air, and conduction oil temperature declines after heat exchange, changes into low temperature conduction oil-air
Hot 3 warm-up combustion-supporting air of device, the conduction oil after then temperature reduces enter back into the heating of solar thermal collector 4.So circulation.
The structure of the present embodiment heats conduction oil using solar energy as heat source；Combustion air is heated by three-level, is reached
350-400 DEG C or so, it is significantly higher than original machine group, energy-saving effect is substantially improved.
Embodiment 2
Difference from example 1 is that cooling device is increased in thermally conductive oil return line, cooling dress in the present embodiment
It is set to conduction oil-condensation water- to-water heat exchanger 5, positioned at oil outlet and low temperature conduction oil-air of high temperature heat conductive oil-air heat exchanger 1
Between the oiler of heat exchanger 3.Conduction oil-condensation water- to-water heat exchanger 5 effect herein is the heat for making full use of conduction oil, heating
Condensed water in coal unit.
In terms of air preheat process, the present embodiment includes low temperature conduction oil-air heat exchanger 3, air preheater 2, high temperature
Conduction oil-air heat exchanger 1, combustion air successively pass through above-mentioned 3 equipment, pass through low temperature conduction oil, high-temperature flue gas, height respectively
The heating of warm conduction oil reaches 350-400 DEG C or so, enters burner hearth afterwards.
In terms of conduction oil circulation process, the present embodiment further includes solar thermal collector 4 and conduction oil-condensation water- to-water heat exchanger 5,
Wherein the oil outlet of solar thermal collector 4 is connected with the oiler of high temperature heat conductive oil-air heat exchanger 1, oiler and low temperature
The oil outlet of conduction oil-air heat exchanger 3 is connected, conduction oil-condensation water- to-water heat exchanger 5 oiler and high temperature heat conductive oil-air
The oil outlet of heat exchanger 1 is connected, and conduction oil-condensation water- to-water heat exchanger 5 oil outlet enters with low temperature conduction oil-air heat exchanger 3
Hydraulic fluid port is connected.
Conduction oil is heated through solar thermal collector 4, heats high temperature air, heat exchange into high temperature heat conductive oil-air heat exchanger 1
Conduction oil afterwards through conduction oil-condensation water- to-water heat exchanger 5, heats the condensed water in unit, condensed water returns to heat regenerative system, thermally conductive again
It is oily then enter low temperature conduction oil-air heat exchanger 3, using residual temperature heat combustion air, temperature reduce after conduction oil return again
It is heated again to solar thermal collector 5.So circulation.
In general, solar thermal collector 4 uses common trough type solar heat-collector, internal working medium is conduction oil.
The present embodiment successively heats high temperature air, condensed water and Cryogenic air using solar energy, while playing and being lifted into furnace
Wind-warm syndrome, the effect saved extracted steam from turbine, preheat cold air, by solar energy and coal unit within the scope of big warm area, multiple working medium
It is integrated, realizes the abundant cascade utilization of solar energy.
Technological means disclosed in the utility model is not limited only to technological means disclosed in above embodiment, also
Including technical solution consisting of any combination of the above technical features.
Claims (5)
1. a kind of light coal complementary system realizing solar energy cascade and utilizing, including be located in boiler back end ductwork and pass through air pipeline
Sequentially connected high temperature heat conductive oil-air heat exchanger, air preheater and low temperature conduction oil-air heat exchanger, it is characterised in that:
It further include solar thermal collector, the solar thermal collector passes through heat conducting oil pipe and the high temperature heat conductive oil-air heat exchanger
It is connected with the low temperature conduction oil-air heat exchanger, wherein the oil outlet of solar thermal collector and the high temperature heat conductive oil-air
The oiler of heat exchanger is connected, and the oiler of the solar thermal collector is fuel-displaced with the low temperature conduction oil-air heat exchanger
Mouth is connected, the oiler phase of the oil outlet of the high temperature heat conductive oil-air heat exchanger and the low temperature conduction oil-air heat exchanger
Even.
2. the light coal complementary system according to claim 1 realizing solar energy cascade and utilizing, it is characterised in that: the low temperature
Conduction oil-air heat exchanger gas outlet is connected by air pipeline with the air inlet of the air preheater, and the air is pre-
The gas outlet of hot device is connected by air pipeline with the air inlet of the high temperature heat conductive oil-air heat exchanger.
3. the light coal complementary system according to claim 1 realizing solar energy cascade and utilizing, it is characterised in that: further include cold
But device, the oil outlet and low temperature conduction oil-air heat exchanger for being located at the high temperature heat conductive oil-air heat exchanger enter
Between hydraulic fluid port.
4. the light coal complementary system according to claim 3 realizing solar energy cascade and utilizing, it is characterised in that: the cooling
Device is conduction oil-condensation water- to-water heat exchanger, inside there is condensing water conduit.
5. described in any item light coal complementary systems realizing solar energy cascade and utilizing according to claim 1 ~ 4, it is characterised in that:
The solar thermal collector is trough type solar heat-collector, and internal working medium is conduction oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811193.9U CN209213910U (en) | 2018-11-05 | 2018-11-05 | A kind of light coal complementary system realizing solar energy cascade and utilizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821811193.9U CN209213910U (en) | 2018-11-05 | 2018-11-05 | A kind of light coal complementary system realizing solar energy cascade and utilizing |
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| Publication Number | Publication Date |
|---|---|
| CN209213910U true CN209213910U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821811193.9U Expired - Fee Related CN209213910U (en) | 2018-11-05 | 2018-11-05 | A kind of light coal complementary system realizing solar energy cascade and utilizing |
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| CN (1) | CN209213910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725988A (en) * | 2021-09-06 | 2021-11-30 | 西安石油大学 | Photovoltaic and photo-thermal integrated heating system and operation method thereof |
-
2018
- 2018-11-05 CN CN201821811193.9U patent/CN209213910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725988A (en) * | 2021-09-06 | 2021-11-30 | 西安石油大学 | Photovoltaic and photo-thermal integrated heating system and operation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20201105 |