CN220061704U - Flue gas grading utilization flexible-adjustment double-medium heat supply power generation system - Google Patents
Flue gas grading utilization flexible-adjustment double-medium heat supply power generation system Download PDFInfo
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- CN220061704U CN220061704U CN202320932845.9U CN202320932845U CN220061704U CN 220061704 U CN220061704 U CN 220061704U CN 202320932845 U CN202320932845 U CN 202320932845U CN 220061704 U CN220061704 U CN 220061704U
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- 239000003546 flue gas Substances 0.000 title claims abstract description 79
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 238000010248 power generation Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 149
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 58
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 241000208125 Nicotiana Species 0.000 claims abstract description 17
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 11
- 230000001502 supplementing effect Effects 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000002918 waste heat Substances 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a flue gas grading utilization flexible-adjustment double-medium heat supply power generation system, which comprises a heat conduction oil circulation heat supply distribution system, a water supply system, a saturated steam generation system, a steam superheating system and a superheated steam heat supply power generation distribution system; the heat conduction oil circulation heat supply distribution system comprises a tobacco tar heat exchanger, a heat conduction oil flow distribution valve and a heat conduction oil circulation pump; the water supply system is used for supplying water to the saturated steam generating system. The technical scheme provided by the utility model has the beneficial effects that: when the flue gas cooling device is used, flue gas enters the flue gas heat exchanger to cool down at a first stage, saturated steam is produced by the first steam generator in the second stage of flue gas, heat conducting oil is heated by the flue gas and then is distributed in flow through the heat conducting oil flow distribution valve, a part of heat conducting oil is supplied to the outside through the heat conducting oil output pipeline, a part of the heat conducting oil is rich in producing saturated steam and superheating the saturated steam, a part of the superheated steam is supplied with heat, and the rich superheated steam is used for waste heat power generation, so that the heat energy utilization efficiency of the flue gas is improved.
Description
Technical Field
The utility model relates to the technical field of comprehensive utilization of flue gas waste heat of a glass kiln and a steel lime kiln, in particular to a flexible-adjustment dual-medium heat supply power generation system for flue gas grading utilization.
Background
The conventional flue gas waste heat utilization of a glass kiln and a steel lime kiln has the following problems:
1. the temperature of the flue gas is not utilized in a grading manner, and the heat energy of the flue gas is not utilized effectively.
2. In the way of generating electricity by waste heat of a direct waste heat boiler, a steam turbine, a screw machine or ORC (such as the Chinese patent of the application number of CN 202122430111.4), the waste steam heat energy after the work is done is taken away by circulating cooling water due to the loss of a cold source, and the effective utilization rate of the heat energy is less than 20%. Taking the flue gas at 450 ℃ to 150 ℃ as an example, if the flue gas heat energy is utilized to directly generate the steam waste heat for power generation, the waste steam heat energy after work is taken away by circulating cooling water, and the effective utilization of the heat energy is only about 18.7 percent.
Disclosure of Invention
In view of the above, it is necessary to provide a dual-medium heat supply power generation system capable of flexibly adjusting the flue gas classification utilization, which is used for solving the technical problem that the conventional flue gas waste heat utilization efficiency of the existing glass kiln and steel lime kiln is low.
In order to achieve the above purpose, the utility model provides a dual-medium heat supply power generation system with flexibly adjustable flue gas grading utilization, which comprises a heat conduction oil circulation heat supply distribution system, a water supply system, a saturated steam generation system, a steam superheating system and a superheated steam heat supply power generation distribution system;
the heat conduction oil circulation heat supply distribution system comprises a tobacco tar heat exchanger, a heat conduction oil flow distribution valve and a heat conduction oil circulation pump, wherein a first medium input port of the tobacco tar heat exchanger is connected with a smoke input pipeline; the first medium outlet of the tobacco tar heat exchanger is connected with a first-stage smoke cooling pipeline, and the second medium outlet of the tobacco tar heat exchanger is communicated with the medium inlet of the heat conduction oil flow distribution valve; the first medium output port of the heat conducting oil flow distribution valve is connected with a heat conducting oil output pipeline, the second medium output port of the heat conducting oil flow distribution valve is connected with a heat conducting oil supply pipeline, the input port of the heat conducting oil circulating pump is communicated with the heat conducting oil input pipeline and the heat conducting oil return pipeline, and the output port of the heat conducting oil circulating pump is connected with the second medium input port of the tobacco smoke oil heat exchanger;
the water supply system is used for supplying water to the saturated steam generation system;
the saturated steam generation system comprises a first steam generator and a second steam generator, wherein the first steam generator is used for heating a first path of feed water provided by the water supply system through flue gas of a flue gas primary cooling pipeline to generate steam; the second steam generator is used for heating a second path of water supplied by the water supply system through heat conduction oil of the primary cooling pipeline of the steam superheater to generate steam;
the steam superheating system is used for superheating steam generated by the first steam generator and the second steam generator through conduction oil output by the second medium output port of the tobacco tar heat exchanger;
the superheated steam heat supply power generation distribution system is used for distributing and generating power by generating superheated steam through the steam superheating system.
In some embodiments, the water supply system comprises a water supply tank, a water supplementing pipeline, a condensed water pressurizing pipeline, a first water supply pump, a first water supply pipeline, a first water supply pressurizing pipeline, a second water supply pump, a second water supply pipeline and a second water supply pressurizing pipeline, wherein a first medium input port of the water supply tank is connected with the water supplementing pipeline, and a second medium input port of the water supply tank is connected with the condensed water pressurizing pipeline; the input port of the first water supply pump is communicated with a first medium output port of the water supply tank through a first water supply pipeline, and the output port of the first water supply pump is connected with a first water supply pressurizing pipeline; the input port of the second water feed pump is communicated with a second medium output port of the water feed tank, and the output port of the second water feed pump is connected with a second water feed pressurizing pipeline.
In some embodiments, a water make-up valve is provided on the water make-up line.
In some embodiments, the input of the second feed pump communicates with the second medium output of the feed tank via a second feed line.
In some embodiments, a first medium input port of the first steam generator is connected with the flue gas primary cooling pipeline, a second medium input port of the first steam generator is connected with the first water supply pressurizing pipeline, a first water supply valve is arranged on the first water supply pressurizing pipeline, a first medium output port of the first steam generator is connected with the flue gas output pipeline, and a second medium output port of the first steam generator is connected with the first saturated steam pipeline.
In some embodiments, the first medium input port of the second steam generator is connected to the conduction oil primary cooling pipeline, the second medium input port of the second steam generator is connected to the second water supply pressurizing pipeline, the second water supply pressurizing pipeline is provided with a second water supply valve, the first medium output port of the second steam generator is connected to the conduction oil return pipeline, and the second medium output port of the second steam generator is connected to the second saturated steam pipeline.
In some embodiments, the steam superheating system comprises a steam superheater, a saturated steam main pipe and a superheated steam main pipe, wherein a first medium input port of the steam superheater is connected with a heat conduction oil supply pipeline, a second medium input port of the steam superheater is connected with the saturated steam main pipe, a first branch of the saturated steam main pipe is connected with the first saturated steam pipeline, and a second branch of the saturated steam main pipe is connected with the second saturated steam pipeline; the first medium output port of the steam superheater is connected with the heat conduction oil primary cooling pipeline, and the second medium output port of the steam superheater is connected with the superheated steam main pipe.
In some embodiments, the superheated steam heat supply power generation distribution system comprises a steam flow distribution valve, a superheated steam output pipeline, a steam expander, a steam generator, a dead steam condenser, a vacuum pump and a condensate pump, wherein a first medium output port of the steam flow distribution valve is connected with the superheated steam output pipeline, and a second medium output port of the steam flow distribution valve is communicated with an input port of the steam expander; the first medium output port of the steam expander is connected with the steam generator, and the second medium output port of the steam expander is communicated with the exhaust steam input port of the exhaust steam condenser; the first medium output port of the exhaust steam condenser is communicated with the inlet of the vacuum pump, and the second medium output port of the exhaust steam condenser is communicated with the input port of the condensate pump; and an output port of the condensate pump is connected with the condensate pressurizing pipeline.
In some embodiments, the second medium outlet of the vapor flow distribution valve is in communication with the inlet of the vapor expander via a superheated vapor supply line.
In some embodiments, the second medium output of the steam expander is in communication with the exhaust input of the exhaust condenser via an exhaust conduit.
Compared with the prior art, the technical scheme provided by the utility model has the beneficial effects that: when the flue gas cooling device is used, flue gas enters the flue gas heat exchanger to cool down at a first stage, saturated steam is produced by the first steam generator in the second stage of flue gas, heat conducting oil is heated by the flue gas and then is distributed in flow through the heat conducting oil flow distribution valve, a part of heat conducting oil is supplied to the outside through the heat conducting oil output pipeline, a part of the heat conducting oil is rich in producing saturated steam and superheating the saturated steam, a part of the superheated steam is supplied with heat, and the rich superheated steam is used for waste heat power generation, so that the heat energy utilization efficiency of the flue gas is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a dual medium heating power generation system with flexible regulation for staged utilization of flue gas provided by the present utility model;
in the figure: 1-heat conduction oil circulation heat supply distribution system, 11-tobacco tar heat exchanger, 12-flue gas input pipeline, 13-heat conduction oil pressurization pipeline, 14-flue gas first-stage cooling pipeline, 15-heat conduction oil flow distribution valve, 16-heat conduction oil supply main pipe, 17-heat conduction oil output pipeline, 18-heat conduction oil supply pipeline, 19-heat conduction oil return main pipe, 110-heat conduction oil input pipeline, 111-heat conduction oil circulation pump, 112-heat conduction oil return pipeline, 113-expansion constant pressure device, 114-expansion constant pressure pipeline, 2-water supply system, 21-water supply tank, 22-water supply pipeline, 23-water supply valve, 24-condensed water pressurization pipeline, 25-first water supply pump, 26-first water supply pipeline, 27-first water supply pressurization pipeline 271-first feed water valve, 28-second feed water pump, 29-second feed water pipeline, 210-second feed water pressurization pipeline, 211-second feed water valve, 3-saturated steam generation system, 31-first steam generator, 32-flue gas output pipeline, 33-first saturated steam pipeline, 34-second steam generator, 35-heat conduction oil primary cooling pipeline, 36-second saturated steam pipeline, 4-steam superheating system, 41-steam superheater, 42-saturated steam header pipe, 44-superheated steam header pipe, 5-superheated steam heat supply power generation distribution system, 51-steam flow distribution valve, 52-superheated steam output pipeline, 53-steam expansion machine, 54-superheated steam supply pipeline, 55-steam generator, 56-exhaust steam condenser, 57-exhaust steam pipeline, 58-vacuum pump and 59-condensate pump.
Detailed Description
The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.
Referring to fig. 1, the utility model provides a dual-medium heat supply power generation system capable of flexibly adjusting flue gas grading utilization, which comprises a heat conduction oil circulation heat supply distribution system 1, a water supply system 2, a saturated steam generation system 3, a steam superheating system 4 and a superheated steam heat supply power generation distribution system 5.
The heat conducting oil circulation heat supply distribution system 1 is used for heating heat conducting oil through primary cooling of flue gas, and comprises a flue gas heat exchanger 11, a flue gas input pipeline 12, a heat conducting oil pressurizing pipeline 13, a flue gas primary cooling pipeline 14, a heat conducting oil flow distribution valve 15, a heat conducting oil supply main pipe 16, a heat conducting oil output pipeline 17, a heat conducting oil supply pipeline 18, a heat conducting oil return main pipe 19, a heat conducting oil input pipeline 110 and a heat conducting oil circulation pump 111, wherein a first medium input port of the flue gas heat exchanger 11 is connected with the flue gas input pipeline 12, and a second medium input port of the flue gas heat exchanger 11 is connected with the heat conducting oil pressurizing pipeline 13; the first medium output port of the tobacco tar heat exchanger 11 is connected with a first-stage smoke cooling pipeline 14, and the second medium output port of the tobacco tar heat exchanger 11 is communicated with the medium input port of the heat conduction oil flow distribution valve 15 through a heat conduction oil supply header pipe 16; the first medium output port of the heat conduction oil flow distribution valve 15 is connected with a heat conduction oil output pipeline 17, the second medium output port of the heat conduction oil flow distribution valve 15 is connected with a heat conduction oil supply pipeline 18, and the heat conduction oil can be flexibly distributed by adopting the heat conduction oil flow distribution valve 15; the first branch of the heat conduction oil return main pipe 19 is connected with a heat conduction oil input pipeline 110, the second branch of the heat conduction oil return main pipe 19 is connected with a heat conduction oil return pipeline 112, and the third branch of the heat conduction oil return main pipe 19 is communicated with an expansion constant pressure device 113 through an expansion constant pressure pipeline 114; an input port of the conduction oil circulation pump 111 is connected with the conduction oil return header pipe 19, and an output port of the conduction oil circulation pump 111 is connected with the conduction oil pressurizing pipeline 13. The working process of the heat conduction oil circulation heat supply distribution system 1 is that the heat conduction oil input by the heat conduction oil return header pipe 19 is heated by the high-temperature flue gas input by the flue gas input pipeline 12. When the device is used, smoke enters the smoke-oil heat exchanger 11 to perform primary cooling, heat conduction oil is heated by the smoke and then is distributed in flow through the heat conduction oil flow distribution valve 15, a part of heat conduction oil is supplied to the outside through the heat conduction oil output pipeline 17, and the rich part of heat conduction oil is heated to the saturated steam of the aquatic product through the heat conduction oil supply pipeline 18.
The water supply system 2 is used for supplying water to the saturated steam generating system 3, and comprises a water supply tank 21, a water supplementing pipeline 22, a condensed water pressurizing pipeline 24, a first water supply pump 25, a first water supply pipeline 26, a first water supply pressurizing pipeline 27, a second water supply pump 28, a second water supply pipeline 29 and a second water supply pressurizing pipeline 210, wherein a first medium input port of the water supply tank 21 is connected with the water supplementing pipeline 22, a water supplementing valve 23 is arranged on the water supplementing pipeline 22, and a second medium input port of the water supply tank 21 is connected with the condensed water pressurizing pipeline 24; the input port of the first water feed pump 25 is communicated with a first medium output port of the water feed tank 21 through a first water feed pipeline 26, and the output port of the first water feed pump 25 is connected with a first water feed pressurizing pipeline 27; the input of the second feed pump 28 is connected to the second medium output of the feed tank 21 via a second feed line 29, the output of the second feed pump 28 being connected to a second feed-water pressure increasing line 210. In use, make-up water enters the feed tank 21 through the make-up valve 23 together with the condensed water, and the feed water is pressurized by the first feed pump 25 and the feed pump 28, respectively, and then enters the subsequent steam generation system 3.
The saturated steam generating system 3 comprises a first steam generator 31 and a second steam generator 34.
The first steam generator 31 is configured to heat water provided by the water supply system 2 through the flue gas of the flue gas primary cooling pipeline 14 to generate steam, specifically, a first medium input port of the first steam generator 31 is connected to the flue gas primary cooling pipeline 14, a second medium input port of the first steam generator 31 is connected to the first water supply pressurizing pipeline 27, a first water supply valve 271 is disposed on the first water supply pressurizing pipeline 27, a first medium output port of the first steam generator 31 is connected to the flue gas output pipeline 32, and a second medium output port of the first steam generator 31 is connected to the first saturated steam pipeline 33;
the second steam generator 34 is configured to heat water provided by the water supply system 2 by using excess superheated steam of the steam superheating system 4 to generate steam, specifically, a first medium input port of the second steam generator 34 is connected to the conduction oil primary cooling pipeline 35, a second medium input port of the second steam generator 34 is connected to the second water supply pressurization pipeline 210, a second water supply valve 211 is disposed on the second water supply pressurization pipeline 210, a first medium output port of the second steam generator 34 is connected to the conduction oil return pipeline 112, and a second medium output port of the second steam generator 34 is connected to the second saturated steam pipeline 36. When in use, the water discharged by the first water supply pump 25 enters the first steam generator 31, and saturated steam is produced through secondary cooling of the flue gas; the water from the second water feed pump 28 enters the second steam generator 34 and is cooled by the heat conducting oil to produce saturated steam.
The steam superheating system 4 is configured to superheat steam generated by the first steam generator 31 and the second steam generator 34 by using heat transfer oil output from the second medium output port of the tobacco tar heat exchanger 11, and includes a steam superheater 41, a saturated steam main pipe 42, and a superheated steam main pipe 44, where the first medium input port of the steam superheater 41 is connected to the heat transfer oil supply pipeline 18, the second medium input port of the steam superheater 41 is connected to the saturated steam main pipe 42, a first branch of the saturated steam main pipe 42 is connected to the first saturated steam pipeline 33, and a second branch of the saturated steam main pipe 42 is connected to the second saturated steam pipeline 36; the first medium output port of the steam superheater 41 is connected with the heat conduction oil primary cooling pipeline 35, and the second medium output port of the steam superheater 41 is connected with the superheated steam main pipe 44. In use, saturated steam enters the steam superheater 41 through the saturated steam header 42, thereby superheating the steam through primary cooling of the heat transfer oil.
The superheated steam heat supply power generation distribution system 5 is used for generating superheated steam through the steam superheating system 4 to distribute and generate power, and comprises a steam flow distribution valve 51, a superheated steam output pipeline 52, a steam expander 53, a steam generator 55, a dead steam condenser 56, a vacuum pump 58 and a condensate pump 59, wherein a first medium output port of the steam flow distribution valve 51 is connected with the superheated steam output pipeline 52, and a second medium output port of the steam flow distribution valve 51 is communicated with an input port of the steam expander 53 through the superheated steam supply pipeline 54; the first medium output port of the steam expander 53 is connected with the steam generator 55, and the second medium output port of the steam expander 53 is communicated with the exhaust steam input port of the exhaust steam condenser 56 through the exhaust steam pipeline 57; the first medium output port of the exhaust steam condenser 56 is communicated with the inlet of the vacuum pump 58, and the second medium output port of the exhaust steam condenser 56 is communicated with the input port of the condensate pump 59; the output of the condensate pump 59 is connected to the condensate pressurizing line 24. In use, after the steam is overheated, the flow distribution is carried out through the steam flow distribution valve 51, a part of the overheated steam is supplied to the outside through the overheated steam output pipeline 52, the surplus part of the steam expander 53 is expanded through the steam generator 55 to generate electricity, and after the steam is condensed, condensed water is returned to the water supply tank 21 through the condensate pump 59 to realize circulation.
For a better understanding of the present utility model, the following describes in detail the operation of the flue gas staged utilization flexible adjustable dual medium heating power generation system provided by the present utility model with reference to fig. 1: when the device is used, smoke enters the smoke-oil heat exchanger 11 to carry out primary cooling, heat conduction oil is heated by the smoke and then is distributed in flow through the heat conduction oil flow distribution valve 15, one part of the heat conduction oil is supplied to the outside through the heat conduction oil output pipeline 17, and the rich part of the heat conduction oil is heated to the saturated steam of the aquatic product through the heat conduction oil supply pipeline 18; meanwhile, the water is fed into the water supply tank 21 together with the condensed water through the water supplementing valve 23, and the water is fed into the subsequent steam generation system 3 after being pressurized through the first water supply pump 25 and the water supply pump 28 respectively; the water discharged by the first water supply pump 25 enters the first steam generator 31, and saturated steam is produced through secondary cooling of the flue gas; the water discharged by the second water supply pump 28 enters the second steam generator 34 and is subjected to secondary cooling through heat conducting oil to generate saturated steam; saturated steam enters the steam superheater 41 through the saturated steam header pipe 42, so that the steam is superheated through primary cooling of heat conducting oil; after the steam is overheated, the flow distribution is carried out through the steam flow distribution valve 51, a part of the overheated steam is supplied to the outside through the overheated steam output pipeline 52, the surplus part of the steam expander 53 is expanded through the steam generator 55 to generate electricity, and after the steam is condensed, condensed water returns to the water supply tank 21 through the condensate pump 59 to realize circulation.
In summary, the flue gas grading utilization and flexible adjustment dual-medium heat supply power generation system provided by the utility model realizes grading utilization of flue gas through a two-stage steam generation technology, a heat conduction oil steam superheating technology and the like, performs heat conduction oil and superheated steam dual-medium heat supply and power generation, improves the utilization efficiency of flue gas heat energy and simultaneously flexibly adjusts heat supply quantity. Specifically, the first-stage utilization of the flue gas adopts a heat conduction oil circulation heat supply distribution system 1 to heat and distribute the heat conduction oil; the secondary flue gas utilizes the saturated steam produced by the first steam generator 31, the abundant heat conduction oil after external heat supply produces saturated steam by the second steam generator 34 and simultaneously superheats the saturated steam, and the abundant superheated steam after external heat supply carries out waste heat power generation, so that the utilization efficiency of flue gas heat energy is improved.
The utility model carries out graded utilization on the temperature of the flue gas, directly supplies heat by double media, and improves the utilization efficiency of heat energy. Taking the flue gas with the temperature of 450 ℃ reduced to 150 ℃ as an example, if the flue gas heat energy is utilized to directly generate the steam waste heat for generating electricity, the waste steam heat energy after doing work is taken away by circulating cooling water, and the heat energy is effectively utilized by about 18.7 percent; if the grading utilization scheme is adopted, the flue gas at 300-150 ℃ is used for generating steam and generating electricity by direct waste heat after the heat conducting oil is overheated, and the flue gas at 450-300 ℃ is used for heating the heat conducting oil, wherein part of the heat conducting oil directly supplies heat to the outside, and the rest is used for overheating the steam, at the moment, the effective utilization rate of heat energy can reach 60 percent, and if part of overheated steam is used for supplying heat, the double-medium heat supply is adopted, the effective utilization rate of heat energy is higher.
It should be appreciated that in the above embodiments, the input heat source may be either flue gas or other gaseous medium; the temperature of the flue gas is not limited, and can be higher than 400 ℃ or lower than 400 ℃; the grading utilization of the flue gas can be two-stage or three-stage or multi-stage, and medium-pressure steam can be generated by the one-stage utilization of the high-temperature flue gas; the tobacco tar heat exchanger 11 can be a flue type heat exchange device or a heating surface of a waste heat boiler; the final stage utilization mode can provide steam and hot water; the expansion power generation mode can be a steam turbine, a screw machine, an ORC unit or any combination of two.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. The dual-medium heat supply power generation system capable of flexibly adjusting the flue gas grading utilization is characterized by comprising a heat conduction oil circulation heat supply distribution system, a water supply system, a saturated steam generation system, a steam superheating system and a superheated steam heat supply power generation distribution system;
the heat conduction oil circulation heat supply distribution system comprises a tobacco tar heat exchanger, a heat conduction oil flow distribution valve and a heat conduction oil circulation pump, wherein a first medium input port of the tobacco tar heat exchanger is connected with a smoke input pipeline; the first medium outlet of the tobacco tar heat exchanger is connected with a first-stage smoke cooling pipeline, and the second medium outlet of the tobacco tar heat exchanger is communicated with the medium inlet of the heat conduction oil flow distribution valve; the first medium output port of the heat conducting oil flow distribution valve is connected with a heat conducting oil output pipeline, the second medium output port of the heat conducting oil flow distribution valve is connected with a heat conducting oil supply pipeline, the input port of the heat conducting oil circulating pump is communicated with the heat conducting oil input pipeline and the heat conducting oil return pipeline, and the output port of the heat conducting oil circulating pump is connected with the second medium input port of the tobacco smoke oil heat exchanger;
the water supply system is used for supplying water to the saturated steam generation system;
the saturated steam generation system comprises a first steam generator and a second steam generator, wherein the first steam generator is used for heating a first path of feed water provided by the water supply system through flue gas of a flue gas primary cooling pipeline to generate steam; the second steam generator is used for heating a second path of water supplied by the water supply system through heat conduction oil of the primary cooling pipeline of the steam superheater to generate steam;
the steam superheating system is used for superheating steam generated by the first steam generator and the second steam generator through conduction oil output by the second medium output port of the tobacco tar heat exchanger;
the superheated steam heat supply power generation distribution system is used for distributing and generating power by generating superheated steam through the steam superheating system.
2. The flexible-adjustment dual-medium heat supply power generation system for classified utilization of flue gas according to claim 1, wherein the water supply system comprises a water supply tank, a water supplementing pipeline, a condensed water pressurizing pipeline, a first water supply pump, a first water supply pipeline, a first water supply pressurizing pipeline, a second water supply pump, a second water supply pipeline and a second water supply pressurizing pipeline, a first medium input port of the water supply tank is connected with the water supplementing pipeline, and a second medium input port of the water supply tank is connected with the condensed water pressurizing pipeline; the input port of the first water supply pump is communicated with a first medium output port of the water supply tank through a first water supply pipeline, and the output port of the first water supply pump is connected with a first water supply pressurizing pipeline; the input port of the second water feed pump is communicated with a second medium output port of the water feed tank, and the output port of the second water feed pump is connected with a second water feed pressurizing pipeline.
3. The flue gas staged utilization flexible adjustable dual medium heating power generation system according to claim 2, wherein a water replenishing valve is arranged on the water replenishing pipeline.
4. The dual medium heating power generation system with flexible adjustment for flue gas staged utilization according to claim 2, wherein the input of the second feed pump is in communication with the second medium output of the feed tank via a second feed line.
5. The flexible-regulation dual-medium heat supply power generation system for classified utilization of flue gas according to claim 2, wherein a first medium input port of a first steam generator is connected with the flue gas primary cooling pipeline, a second medium input port of the first steam generator is connected with the first water supply pressurizing pipeline, a first water supply valve is arranged on the first water supply pressurizing pipeline, a first medium output port of the first steam generator is connected with the flue gas output pipeline, and a second medium output port of the first steam generator is connected with the first saturated steam pipeline.
6. The flexible-adjustment dual-medium heat supply power generation system for classified utilization of flue gas according to claim 5, wherein the first medium input port of the second steam generator is connected with a first-stage heat conduction oil cooling pipeline, the second medium input port of the second steam generator is connected with a second water supply pressurizing pipeline, the second water supply pressurizing pipeline is provided with a second water supply valve, the first medium output port of the second steam generator is connected with a heat conduction oil return pipeline, and the second medium output port of the second steam generator is connected with a second saturated steam pipeline.
7. The flue gas staged utilization flexible adjustable dual-medium heat supply power generation system according to claim 6, wherein the steam superheating system comprises a steam superheater, a saturated steam main pipe and a superheated steam main pipe, a first medium input port of the steam superheater is connected with a heat conduction oil supply pipeline, a second medium input port of the steam superheater is connected with the saturated steam main pipe, a first branch of the saturated steam main pipe is connected with the first saturated steam pipeline, and a second branch of the saturated steam main pipe is connected with the second saturated steam pipeline; the first medium output port of the steam superheater is connected with the heat conduction oil primary cooling pipeline, and the second medium output port of the steam superheater is connected with the superheated steam main pipe.
8. The flexible-adjustment double-medium heat supply power generation system for classified utilization of flue gas according to claim 7, wherein the superheated steam heat supply power generation distribution system comprises a steam flow distribution valve, a superheated steam output pipeline, a steam expander, a steam generator, a dead steam condenser, a vacuum pump and a condensate pump, a first medium output port of the steam flow distribution valve is connected with the superheated steam output pipeline, and a second medium output port of the steam flow distribution valve is communicated with an input port of the steam expander; the first medium output port of the steam expander is connected with the steam generator, and the second medium output port of the steam expander is communicated with the exhaust steam input port of the exhaust steam condenser; the first medium output port of the exhaust steam condenser is communicated with the inlet of the vacuum pump, and the second medium output port of the exhaust steam condenser is communicated with the input port of the condensate pump; and an output port of the condensate pump is connected with the condensate pressurizing pipeline.
9. The dual medium heating power generation system with flexible adjustment for flue gas staged utilization according to claim 8, wherein the second medium outlet of the steam flow distributing valve is in communication with the inlet of the steam expander via a superheated steam supply line.
10. The dual medium heating power generation system with flexible adjustment for flue gas staged utilization according to claim 8, wherein the second medium output port of the steam expander is in communication with the exhaust steam input port of the exhaust steam condenser via an exhaust steam pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320932845.9U CN220061704U (en) | 2023-04-23 | 2023-04-23 | Flue gas grading utilization flexible-adjustment double-medium heat supply power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320932845.9U CN220061704U (en) | 2023-04-23 | 2023-04-23 | Flue gas grading utilization flexible-adjustment double-medium heat supply power generation system |
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