CN112179192A - Multi-heat-source waste heat recovery system for thermoelectric production - Google Patents
Multi-heat-source waste heat recovery system for thermoelectric production Download PDFInfo
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- CN112179192A CN112179192A CN202010966912.XA CN202010966912A CN112179192A CN 112179192 A CN112179192 A CN 112179192A CN 202010966912 A CN202010966912 A CN 202010966912A CN 112179192 A CN112179192 A CN 112179192A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0026—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion engines, e.g. for gas turbines or for Stirling engines
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- Mechanical Engineering (AREA)
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a multi-heat-source waste heat recovery system for thermoelectric production, which relates to the field of waste heat utilization, and is characterized in that high-temperature hot water is provided by utilizing multiple heat sources and is heated in multiple stages to complete circulation of the hot water in a heat supply network; the heat exchanger of the flue gas waste heat recovery module is communicated with the flue, the heat exchanger is a tube type heat exchanger, an air outlet of the heat exchanger is connected with a hot air main pipe, the energy accumulator comprises a wind energy accumulator, the hot air main pipe is communicated with an air inlet of a wind energy heat accumulator, an air outlet of the wind energy heat accumulator is connected with an induced air main pipe, the induced air main pipe is connected with an air inlet of the heat exchanger, an air supplementing regulating valve and a waste heat induced draft fan are arranged on the induced air main pipe, and an air outlet induced. The flue gas waste heat recovery module preheats the air in the secondary heat exchanger to 250-300 ℃ by utilizing the waste heat of the waste gas with the temperature of more than 400 ℃ generated after thermoelectric generation, and heats the water in the water tank of the wind energy accumulator so as to utilize the waste heat.
Description
Technical Field
The invention belongs to the field of waste heat utilization, and particularly relates to a multi-heat-source waste heat recovery system for thermoelectric production.
Background
The thermal power plant is a high-energy-consumption enterprise, the circulation efficiency of the current turbo generator unit under the condensation working condition is generally 40-48%, and the heat energy utilization rate of the cogeneration unit is about 60% in the heat supply season. 30% of cold end waste heat is discharged to the atmosphere through circulating water during operation, so that the efficiency of the unit is reduced, the energy loss is great, the heat supply capacity of the unit is reduced, the heat supply cost is increased, and the pollution to the environment is caused.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a waste heat recovery system with multiple heat sources for thermoelectric production, so as to solve the above-mentioned technical problems.
The invention provides a multi-heat-source waste heat recovery system for thermoelectric production, which comprises a multi-heat-source waste heat utilization heat supply system, wherein the multi-heat-source waste heat utilization heat supply system comprises a plurality of heat sources, an energy accumulator, a single-pipe heat network and heat stations, the heat sources are respectively connected with the energy accumulator, a water tank is arranged in the energy accumulator, a water outlet of the water tank is connected with an inlet of the heat station through the single-pipe heat network, the energy accumulator and the heat station are alternately connected in series at intervals, a circulating water pump is arranged on an inlet pipeline of the heat station, the heat station is connected with an inlet of the next-stage heat station through the single-pipe heat network, an outlet of the most-end heat station is connected with an initial heat source and a water return port through the single-pipe heat network to form a circulating;
the heat source comprises a flue gas waste heat recovery module;
the flue gas waste heat recovery module comprises a heat exchanger, a dust and waste gas treatment device and a chimney, the heat exchanger is communicated with the flue, the heat exchanger is a tube type heat exchanger, an air outlet of the heat exchanger is connected with a hot air main pipe, the energy accumulator comprises a wind energy accumulator, the hot air main pipe is communicated with an air inlet of the wind energy heat accumulator, an air outlet of the wind energy heat accumulator is connected with an induced air main pipe, the induced air main pipe is connected with an air inlet of the heat exchanger, an air supplementing adjusting valve and a waste heat induced draft fan are arranged on the induced air main pipe, and an air outlet induced draft fan is arranged.
The wind energy heat accumulator comprises an air duct type electric heater.
Further, the flue gas waste heat recovery module comprises a hot air distribution main pipe, and the hot air main pipe is communicated with the hot air distribution main pipe; the hot air distribution main pipe is provided with a plurality of hot air distribution branch pipes at the positions matched with the wind energy heat accumulators, the hot air distribution branch pipes are respectively communicated with the matched wind energy heat accumulators, and hot air enters the corresponding wind energy heat accumulators through the hot air distribution branch pipes; the hot air distribution branch pipe is provided with a circulating fan and an air duct type electric heater, and the top of the wind energy accumulator is connected with the induced draft main pipe; the air inducing main pipe is communicated with an air inlet of the heat exchanger.
In order to ensure that the air preheating temperature of the curing oven can still be reached when the temperature of waste gas is insufficient at the beginning of blowing in the oven or due to the influence of other working sections, an air duct type electric heater is arranged in a pipeline for supplying air to the curing oven, and the required heat is automatically and electrically heated and supplemented to the air in the curing oven, so that the temperature control of the rock wool curing working section is realized.
Furthermore, a pressure reducing valve is arranged at the top of the wind energy accumulator.
Furthermore, the air supply regulating valve is an electromagnetic regulating valve.
Further, the wind energy accumulator includes a jar body, the equal fixedly connected with fixed block of the both sides inner wall of the jar body to fixedly connected with water tank between two relative one sides of fixed block, water tank bottom intercommunication has the outlet pipe, and the one end that the water tank was kept away from to the outlet pipe runs through the jar body and extends to the outside of the jar body, and the intercommunication of jar body bottom has the second drain pipe, and water tank top intercommunication has the inlet tube, and the one end that the water tank was kept away from to the inlet tube runs through the jar body and extends to the outside of.
Furthermore, a high-temperature-resistant heat-insulating material is arranged outside the wind energy accumulator.
The multi-heat-source waste heat recovery system for thermoelectric production has the advantages that the heat source provides high-temperature hot water, the hot water is conveyed to the heat station through the single-pipe heat supply network, after the heat station exchanges heat with the user side, the hot water returns to the single-pipe heat supply network again, enters the next-stage heat source to be heated, then enters the next-stage heat station to exchange heat with the next-stage user side and returns to the single-pipe heat supply network, and after passing through the multi-stage heat source and the heat station, the hot water finally enters the water return port of the initial heat source through the heat network main circulating pump and is conveyed to the initial heat source to be heated again, so that the circulation of the hot water in;
the flue gas waste heat recovery module preheats the air in the secondary heat exchanger to 250-300 ℃ by utilizing the waste heat of the waste gas with the temperature of more than 400 ℃ generated after thermoelectric generation, and heats the water in the water tank of the wind energy accumulator so as to utilize the waste heat.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flue gas waste heat recovery module of the present invention.
FIG. 2 is a schematic diagram of the wind energy accumulator according to the present invention.
In the figure, 1, a wind energy accumulator, 2, a heat exchanger, 3, a dust and waste gas treatment device, 3-1, a chimney, 4, a hot air main pipe, 5, a hot air distributor, 6, a hot air distribution main pipe, 7, a residual temperature detection device, 8, an air blower, 9, an air outlet induced draft fan, 10, an air induced main pipe, 10-1, an air supplementing regulating valve, 10-2, a residual heat induced draft fan, 11, an air duct type electric heater, 12, a circulating fan, 13, an air inlet air quantity regulating valve, 14, a tank body, 14-1, a fixed block, 14-2, a water tank, 14-3, a water outlet pipe, 14-4, a second water discharge pipe, 14-5 and a water inlet pipe are.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A multi-heat-source waste heat recovery system for thermoelectric production comprises a multi-heat-source waste heat utilization heat supply system, wherein the multi-heat-source waste heat utilization heat supply system comprises a plurality of heat sources, an energy accumulator, a single-pipe heat network and a heat station, the heat sources are respectively connected with the energy accumulator, a water tank 14-2 is arranged in the energy accumulator, a water outlet of the water tank 14-2 is connected with an inlet of the heat station through the single-pipe heat network, the energy accumulator and the heat station are alternately connected in series at intervals, a circulating water pump is arranged on an inlet pipeline of the heat station, the heat station is connected with an inlet of the next-stage heat station through the single-pipe heat network, an outlet of the most-end heat station is connected with the initial heat source and a water return port through the single-pipe heat network, a circulating loop of.
The heat source comprises a flue gas waste heat recovery module; the flue gas waste heat recovery module comprises a heat exchanger 2, a dust and waste gas treatment device 3 and a chimney 3-1, the heat exchanger 2 is communicated with a flue, the heat exchanger 2 is a tube type heat exchanger 2, an air outlet of the heat exchanger 2 is connected with a hot air main pipe 4, the energy accumulator comprises a wind energy accumulator 1, the hot air main pipe 4 is communicated with an air inlet of a wind energy heat accumulator, an air outlet of the wind energy heat accumulator is connected with an induced air main pipe 10, the induced air main pipe 10 is connected with an air inlet of the heat exchanger 2, an air supplementing regulating valve 10-1 and a waste heat induced draft fan 10-2 are arranged on the induced air main pipe 10, and an air outlet induced draft fan 9 is arranged on.
The wind energy heat accumulator comprises an air duct type electric heater 11.
Further, the flue gas waste heat recovery module comprises a hot air distribution header pipe 6, and the hot air header pipe 4 is communicated with the hot air distribution header pipe 6; the hot air distribution header pipe 6 is provided with a plurality of hot air distribution branch pipes at positions matched with the wind energy heat accumulators, the hot air distribution branch pipes are respectively communicated with the matched wind energy heat accumulators, and hot air enters the corresponding wind energy heat accumulators through the hot air distribution branch pipes; the hot air distribution branch pipe is provided with a circulating fan 12 and an air duct type electric heater 11, and the top of the wind energy accumulator 1 is connected with an induced draft main pipe 10; the air inducing main pipe 10 is communicated with an air inlet of the heat exchanger 2.
Normal temperature air is sent into the heat exchanger 2 by a waste heat induced draft fan 10-2 and is heated to more than 250 ℃, the air passes through a hot air main pipe 4, a hot air distribution main pipe 6 and an air inlet volume adjusting valve 13 to control the air inlet volume, the air pressure is controlled by a circulating fan 12, the temperature is controlled by an air duct type electric heater 11 and is respectively sent into the wind energy accumulator 1, the upper waste heat temperature in the wind energy accumulator 1 is detected by an upper waste heat detection device of the wind energy accumulator 1, the air volume and the air pressure of the waste heat induced draft fan 10-2 of the induced draft main pipe 10 are automatically adjusted, and the air inlet volume of the heat exchanger.
Preferably, the air inlet volume adjusting valve 13 is an electromagnetic valve, the circulating fan 12 is a variable frequency fan, the air duct type electric heater 11 is an air duct type automatic electric heater with temperature measurement, and the waste heat induced draft fan 10-2 is the variable frequency circulating fan 12. .
Meanwhile, the induced draft main pipe 10 is provided with a negative pressure measuring device and an air supplement regulating valve 10-1, and air quantity compensation is automatically controlled.
In order to ensure that the air preheating temperature of the curing oven can still be reached when the temperature of waste gas is insufficient at the beginning of blowing in the oven or due to the influence of other working sections, an air duct type electric heater 11 is arranged in a pipeline for supplying air to the curing oven, and the required heat is automatically and electrically heated and supplemented to the air in the curing oven, so that the temperature control of the rock wool curing working section is realized.
In order to prevent the integral hot air waste heat collecting chamber from automatically releasing pressure due to overlarge air pressure and overlarge moisture when the waste heat induced draft fan 10-2 fails, a pressure reducing valve is arranged at the top of the wind energy accumulator 1.
Further, the air supply adjusting valve 10-1 is an electromagnetic adjusting valve. The air inlet flow for compensating the waste heat utilization can be adjusted at any time according to the negative pressure of the fan.
Further, the wind energy accumulator 1 comprises a tank body 14, fixed blocks 14-1 are fixedly connected to inner walls of two sides of the tank body 14, a water tank 14-2 is fixedly connected between opposite sides of the two fixed blocks 14-1, the bottom of the water tank 14-2 is communicated with a water outlet pipe 14-3, one end, far away from the water tank 14-2, of the water outlet pipe 14-3 penetrates through the tank body 14 and extends to the outside of the tank body 14, a second water outlet pipe 14-4 is communicated with the bottom of the tank body 14, the top of the water tank 14-2 is communicated with a water inlet pipe 14-5, and one end, far away from the water tank 14-2, of the water inlet pipe 14-5 penetrates through the.
Furthermore, a high-temperature resistant heat-insulating material is arranged outside the wind energy accumulator 1.
The multi-heat-source waste heat recovery system for thermoelectric production has the advantages that the heat source provides high-temperature hot water, the hot water is conveyed to the heat station through the single-pipe heat supply network, after the heat station exchanges heat with the user side, the hot water returns to the single-pipe heat supply network again, enters the next-stage heat source to be heated, then enters the next-stage heat station to exchange heat with the next-stage user side and returns to the single-pipe heat supply network, and after passing through the multi-stage heat source and the heat station, the hot water finally enters the water return port of the initial heat source through the heat network main circulating pump and is conveyed to the initial heat source to be heated again, so that the circulation of the hot water in;
the flue gas waste heat recovery module preheats the air in the secondary heat exchanger 2 to 250-300 ℃ by utilizing the waste heat of the waste gas with the temperature of more than 400 ℃ generated after the thermoelectric generation, and heats the water in the water tank 14-2 in the wind energy accumulator 1 so as to utilize the waste heat.
The following explains key terms appearing in the present invention.
It will be understood that when an element or layer is referred to as being "on," connected to, "or" coupled to "another element or layer, it can be directly on, connected or coupled to the other element or layer, and intervening elements or layers may also be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Spatially relative terms such as "under …", "below", "lower", "above", "over", and the like, as may be used herein for ease of description, describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description in this document. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A multi-heat source waste heat recovery system for thermoelectric production is characterized in that: the multi-heat-source waste heat utilization heating system comprises a plurality of heat sources, an energy accumulator, a single-pipe heat supply network and a heating station, wherein the heat sources are respectively connected with the energy accumulator, a water tank (14-2) is arranged in the energy accumulator, a water outlet of the water tank (14-2) is connected with an inlet of the heating station through the single-pipe heat supply network, the energy accumulator and the heating station are alternately connected in series at intervals, a circulating water pump is arranged on an inlet pipeline of the heating station, the heating station is connected with an inlet of the next-stage heating station through the single-pipe heat supply network, an outlet of the most terminal heating station is connected with an initial heat source and a water return port through the single-pipe heat supply network to form a circulating loop of the single-pipe heat supply network, and a main circulating;
the heat source comprises a flue gas waste heat recovery module;
the flue gas waste heat recovery module comprises a heat exchanger (2), a dust and waste gas treatment device (3) and a chimney (3-1), the heat exchanger (2) is communicated with a flue, the heat exchanger (2) is a tube type heat exchanger (2), an air outlet of the heat exchanger (2) is connected with a hot air main pipe (4), the energy accumulator comprises a wind energy accumulator (1), the hot air main pipe (4) is communicated with an air inlet of a wind energy heat accumulator, an air outlet of the wind energy heat accumulator is connected with an induced air main pipe (10), the induced air main pipe (10) is connected with an air inlet of the heat exchanger (2), an air supplementing adjusting valve (10-1) and a waste heat induced draft fan (10-2) are arranged on the induced air main pipe (10), and an air outlet induced draft fan (9) is arranged on the hot air main.
2. The thermoelectric generation multi-heat source waste heat recovery system of claim 1, wherein: the wind energy heat accumulator comprises an air duct type electric heater (11).
3. The thermoelectric generation multi-heat source waste heat recovery system of claim 1, wherein: the flue gas waste heat recovery module comprises a hot air distribution header pipe (6), and the hot air header pipe (4) is communicated with the hot air distribution header pipe (6); the hot air distribution header pipe (6) is provided with a plurality of hot air distribution branch pipes at the positions matched with the wind energy heat accumulators, the hot air distribution branch pipes are respectively communicated with the matched wind energy heat accumulators, and hot air enters the corresponding wind energy heat accumulators through the hot air distribution branch pipes; the hot air distribution branch pipe is provided with a circulating fan (12) and a duct type electric heater (11), and the top of the wind energy accumulator (1) is connected with an induced draft main pipe (10); the air inducing main pipe (10) is communicated with an air inlet of the heat exchanger (2).
4. The thermoelectric generation multi-heat-source waste heat recovery system of claim 3, wherein: and a pressure reducing valve is arranged at the top of the wind energy accumulator (1).
5. The thermoelectric generation multi-heat source waste heat recovery system of claim 1, wherein: the air supply regulating valve (10-1) is an electromagnetic regulating valve.
6. The system for multi-heat source waste heat recovery for thermoelectric production as claimed in any one of claims 1 to 5, wherein: the wind energy accumulator (1) comprises a tank body (14), fixing blocks (14-1) are fixedly connected to the inner walls of the two sides of the tank body (14), a water tank (14-2) is fixedly connected between the two opposite sides of the two fixing blocks (14-1), the bottom of the water tank (14-2) is communicated with a water outlet pipe (14-3), one end, away from the water tank (14-2), of the water outlet pipe (14-3) penetrates through the tank body (14) and extends to the outside of the tank body (14), the bottom of the tank body (14) is communicated with a second water outlet pipe (14-4), the top of the water tank (14-2) is communicated with a water inlet pipe (14-5), and one end, away from the water tank (14-2), of the water inlet pipe (14-5 penetrates through the tank body.
7. The thermoelectric generation multi-heat-source waste heat recovery system of claim 6, wherein: and a high-temperature-resistant heat-insulating material is arranged outside the wind energy accumulator (1).
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| CN202010966912.XA CN112179192A (en) | 2020-09-15 | 2020-09-15 | Multi-heat-source waste heat recovery system for thermoelectric production |
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| CN202010966912.XA CN112179192A (en) | 2020-09-15 | 2020-09-15 | Multi-heat-source waste heat recovery system for thermoelectric production |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104456685A (en) * | 2014-05-26 | 2015-03-25 | 宋春节 | Multi-heat-source single-pipe waste heat utilization heat supply system |
| CN208108780U (en) * | 2018-04-18 | 2018-11-16 | 张勇 | A kind of device solidifying rock wool board using waste heat of cupola furnace second compensation |
| CN110631400A (en) * | 2019-10-22 | 2019-12-31 | 大唐呼图壁能源开发有限公司热电厂 | Energy storage method and device for waste heat recovery thermal power plant |
| CN209893460U (en) * | 2019-04-08 | 2020-01-03 | 王文强 | Energy-saving environment-friendly furnace |
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2020
- 2020-09-15 CN CN202010966912.XA patent/CN112179192A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456685A (en) * | 2014-05-26 | 2015-03-25 | 宋春节 | Multi-heat-source single-pipe waste heat utilization heat supply system |
| CN208108780U (en) * | 2018-04-18 | 2018-11-16 | 张勇 | A kind of device solidifying rock wool board using waste heat of cupola furnace second compensation |
| CN209893460U (en) * | 2019-04-08 | 2020-01-03 | 王文强 | Energy-saving environment-friendly furnace |
| CN110631400A (en) * | 2019-10-22 | 2019-12-31 | 大唐呼图壁能源开发有限公司热电厂 | Energy storage method and device for waste heat recovery thermal power plant |
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Application publication date: 20210105 |