CN222688239U - Deep utilization system for flue gas waste heat of gas power station - Google Patents
Deep utilization system for flue gas waste heat of gas power station Download PDFInfo
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- CN222688239U CN222688239U CN202421472005.XU CN202421472005U CN222688239U CN 222688239 U CN222688239 U CN 222688239U CN 202421472005 U CN202421472005 U CN 202421472005U CN 222688239 U CN222688239 U CN 222688239U
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- flue gas
- heat exchange
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The invention discloses a flue gas waste heat deep utilization system of a gas power station, which comprises a gas boiler with an inlet pipe and an outlet pipe, wherein a heating pipeline is arranged in the gas boiler, two ends of the heating pipeline are respectively connected with the inlet pipe and the outlet pipe, the inlet pipe and the outlet pipe are respectively connected with a first pipeline and a second pipeline, a flue gas outlet of the gas boiler is connected with an energy saver, the energy saver is connected with a chimney, a third pipeline is arranged on the first pipeline, a fourth pipeline is arranged on the second pipeline, and the third pipeline and the fourth pipeline are respectively connected with the lower end and the top end.
Description
Technical Field
The invention relates to a waste heat deep utilization system, in particular to a flue gas waste heat deep utilization system of a gas power station, and belongs to the field of power plants.
Background
The waste heat is energy which is not utilized in the energy utilization equipment and can be called as redundant and abandoned energy, and comprises seven types of waste steam and waste water waste heat, combustible waste gas and waste liquid, waste heat, high-temperature products and slag waste heat, chemical reaction waste heat, high-temperature waste gas waste heat, cooling medium waste heat and high-pressure fluid waste pressure. At present, the total waste heat resources of all industries account for about 17% -67% of the total fuel consumption, and the recyclable waste heat resources account for about 60% of the total waste heat resources, so that great energy waste can be caused if the waste heat resources are directly discharged.
The boiler used in the gas power station has high exhaust temperature and large sensible heat loss, and the reduction of fuel consumption is the best way for reducing the cost, so that a system which has low cost and strong practicability and can efficiently utilize the exhaust heat of the gas power station has a certain trend.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a flue gas waste heat deep utilization system of a gas power station, which has the technical characteristics of simple structure, good economic benefit, easy disassembly and the like.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
The utility model provides a gas power station flue gas waste heat degree of depth utilizes system, includes the gas boiler that has inlet tube, outlet pipe, be equipped with the heating pipeline in the gas boiler, the both ends of heating pipeline are connected with inlet tube, outlet pipe respectively, inlet tube, outlet pipe are connected with pipeline No. one, no. two pipelines respectively, the flue gas outlet of gas boiler is connected with the economizer, the economizer is connected with the chimney, divide to be equipped with No. three pipelines on the pipeline No. one, divide to be equipped with No. four pipelines on the pipeline No. two, no. three pipelines, no. four pipelines are connected respectively at lower extreme and top.
Preferably, the energy-saving device comprises a pipeline body, two ends of the pipeline body are provided with a smoke inlet pipe and a smoke outlet pipe, the smoke inlet pipe and the smoke outlet pipe are respectively connected with a smoke outlet and a chimney inlet, a plurality of heat exchange pipelines are vertically and alternately connected in the pipeline body, a plurality of heat exchange fins are connected on the heat exchange pipelines, the upper ends of the heat exchange pipelines are connected with a water outlet tank body after being collected, the lower ends of the heat exchange pipelines are connected with a water inlet tank body after being collected, and the water inlet tank body and the water outlet tank body are respectively connected with a water inlet check valve and a water outlet check valve which are respectively connected with a third pipeline and a fourth pipeline.
Preferably, the heat exchange fin is connected to the heat exchange pipeline through a bolt, a window is formed in the pipeline body, and a door plate is detachably covered on the window.
Preferably, the energy economizer is connected with a support, and the support is fixed on the ground.
Preferably, the gas boiler is provided with a blower.
The energy recovery device has the beneficial effects that the energy in the high-temperature flue gas can be recovered, the fuel consumption is reduced, the economic benefit is very obvious, the heat exchange fins can be disassembled to remove material particles on the heat exchange fins, the influence on the heat exchange efficiency caused by long-term use is avoided, and the energy recovery device is simple in structure and high in practicability.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the economizer of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following examples.
The specific embodiment of the flue gas waste heat deep utilization system of the gas power station is shown in fig. 1-2, the flue gas waste heat deep utilization system of the gas power station comprises a gas boiler 1 with an inlet pipe 3 and an outlet pipe 4, heating pipelines are arranged in the gas boiler 1, two ends of the heating pipelines are respectively connected with the inlet pipe 3 and the outlet pipe 4, the inlet pipe 3 and the outlet pipe 4 are respectively connected with a first pipeline 5 and a second pipeline 6, a flue gas outlet of the gas boiler 1 is connected with an economizer 2, the economizer 2 is connected with a chimney, a third pipeline 7 is arranged on the first pipeline 5, a fourth pipeline 8 is arranged on the second pipeline 6, the third pipeline 7 and the fourth pipeline 8 are respectively connected to the lower end and the top end, the economizer 2 comprises a pipeline body 9, two ends of the pipeline body 9 are respectively connected with a smoke inlet pipe and a smoke outlet pipe, the smoke inlet pipe is respectively connected to the flue gas outlet and the chimney inlet, a plurality of heat exchange pipelines 10 are vertically and at intervals in the pipeline body 9, a plurality of heat exchange fins 11 are connected to the heat exchange pipelines 10, a plurality of water inlet and outlet pipelines 12 are respectively connected to the water inlet and the water tank 10, a water tank 12 is connected to the water tank 13, and the water tank 13 is connected to the water tank is connected to the water inlet and the water tank 13 through a one-way valve respectively.
The use mode is that heat exchange backwater supplied by a circulating water pump is conveyed in a first pipeline 5 and enters a heating pipeline, water in the heating pipeline is directly heated by a gas boiler 1, then hot water in the heating pipeline is conveyed to heat exchange equipment through a second pipeline 6, heat exchange is carried out, the hot water returns to the first pipeline 5, high-temperature flue gas generated by burning materials in the gas boiler 1 firstly enters an economizer 2, and as a plurality of heat exchange pipelines 10 with heat exchange fins 11 are arranged in the economizer 2, the temperature of the heat exchange backwater in a third pipeline 7 can be raised again, the heated hot water is conveyed into heat exchange equipment through a fourth pipeline 8, the temperature of a common flue gas inlet is 138-148 ℃, the temperature of the water inlet is 20 ℃, the temperature of the flue gas is reduced to 65-75 ℃ after passing through the economizer 2, the water temperature is raised by 35-45 ℃, and the economic benefit is obvious.
The principle is that when the temperature of the flue gas is higher than a certain water inlet temperature, the heat exchange fins 11 absorb heat, the temperature of the high-temperature flue gas is reduced after flowing through the heat exchange fins 11, the heat exchange fins 11 and the heat exchange pipelines 10 absorb and conduct hot water in the heat exchange pipelines 10, the heat in the flue gas is absorbed and conducted at a high speed by the heat exchange pipelines 10 with the heat exchange fins 11, the temperature of the flue gas is reduced to be close to the dew point, the heat emission loss is reduced, the heated water is supplemented into the gas boiler 1 for recycling, the heat efficiency of the gas boiler 1 is improved, the fuel consumption is reduced, and the emission is reduced. The heat exchange pipes 10 are arranged at intervals, and small-volume heat fins 11 are adopted, so that the normal circulation of smoke is not affected. The arrangement of the water inlet check valve and the water outlet check valve can not cause backflow, and the design of the water outlet tank body 12 and the water inlet tank body 13 is convenient for realizing the flow balance in the heat exchange pipeline 10.
In a preferred embodiment, the heat exchange fins 11 are connected to the heat exchange tube 10 by bolts, the tube body 9 is provided with windows, the windows are detachably covered with door plates 14,
After the system runs for a long time, a layer of material particles can be accumulated on the heat exchange fins 11, the door plate 14 is opened, the heat exchange fins 11 are detached to remove the material particles, the influence on heat absorption is avoided, or the heat exchange fins 11 can be directly not detached, the material particles are directly removed, but the removal dryness is not better than the removal clarity.
In a preferred embodiment, the economizer 2 is connected with a support, and the support is fixed on the ground, so that the influence of the weight of the economizer 2 on a chimney is reduced.
In a preferred embodiment, the gas boiler 1 is provided with a blower 15, so that air can be supplied, and the efficiency of burning materials is improved.
Finally, it should be noted that the invention is not limited to the above embodiments, but that many variants are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (5)
1. The flue gas waste heat deep utilization system of the gas power station is characterized by comprising a gas boiler (1) with an inlet pipe (3) and an outlet pipe (4), wherein a heating pipeline is arranged in the gas boiler (1), two ends of the heating pipeline are respectively connected with the inlet pipe (3) and the outlet pipe (4), the inlet pipe (3) and the outlet pipe (4) are respectively connected with a first pipeline (5) and a second pipeline (6), a flue gas outlet of the gas boiler (1) is connected with an energy saver (2), the energy saver (2) is connected with a chimney, a third pipeline (7) is arranged on the first pipeline (5), a fourth pipeline (8) is arranged on the second pipeline (6), and the third pipeline (7) and the fourth pipeline (8) are respectively connected to the lower end and the top end.
2. The flue gas waste heat deep utilization system of the gas power station is characterized in that the energy economizer (2) comprises a pipeline body (9), a flue gas inlet pipe and a flue gas outlet pipe are arranged at two ends of the pipeline body (9), the flue gas inlet pipe and the flue gas outlet pipe are respectively connected with a flue gas outlet and a chimney inlet, a plurality of heat exchange pipelines (10) are vertically and alternately connected in the pipeline body (9), a plurality of heat exchange fins (11) are connected to the heat exchange pipelines (10), a water outlet tank body (12) is connected after the upper ends of the heat exchange pipelines (10) are gathered, a water inlet tank body (13) is connected after the lower ends of the heat exchange pipelines (10) are gathered, and a water inlet one-way valve and a water outlet one-way valve are respectively connected to the water inlet tank body (13) and the water outlet tank body (12), and are respectively connected with a third pipeline (7) and a fourth pipeline (8).
3. The flue gas waste heat deep utilization system of the gas power station according to claim 2, wherein the heat exchange fins (11) are connected to the heat exchange pipeline (10) through bolts, a window is formed in the pipeline body (9), and a door plate (14) is detachably covered on the window.
4. The flue gas waste heat deep utilization system of the gas power station according to claim 1, wherein the energy economizer (2) is connected with a support, and the support is fixed on the ground.
5. The flue gas waste heat deep utilization system of a gas power station according to claim 1, wherein the gas boiler (1) is provided with a blower (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421472005.XU CN222688239U (en) | 2024-06-26 | 2024-06-26 | Deep utilization system for flue gas waste heat of gas power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421472005.XU CN222688239U (en) | 2024-06-26 | 2024-06-26 | Deep utilization system for flue gas waste heat of gas power station |
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| Publication Number | Publication Date |
|---|---|
| CN222688239U true CN222688239U (en) | 2025-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202421472005.XU Active CN222688239U (en) | 2024-06-26 | 2024-06-26 | Deep utilization system for flue gas waste heat of gas power station |
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| CN (1) | CN222688239U (en) |
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2024
- 2024-06-26 CN CN202421472005.XU patent/CN222688239U/en active Active
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