CN218914963U - Organic Rankine cycle system for waste gas incineration - Google Patents
Organic Rankine cycle system for waste gas incineration Download PDFInfo
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- CN218914963U CN218914963U CN202221970675.5U CN202221970675U CN218914963U CN 218914963 U CN218914963 U CN 218914963U CN 202221970675 U CN202221970675 U CN 202221970675U CN 218914963 U CN218914963 U CN 218914963U
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- recovery unit
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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
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The utility model discloses an organic Rankine cycle system for waste gas incineration, including waste gas combustion furnace, first order energy recovery unit and second order energy recovery unit, waste gas combustion furnace passes through first order waste gas output tube and connects first order energy recovery unit, and first order energy recovery unit utilizes waste gas combustion furnace output high temperature waste gas to expand the acting and produce the electric energy; the second-order energy recovery unit comprises a second heat exchanger, and the energy in the exhaust steam after the first-order energy recovery unit works and the energy in the low-temperature flue gas after the first-order energy recovery unit exchanges heat is recovered by the second heat exchanger, so that the energy generated by burning the waste gas is recovered in a multi-level manner.
Description
Technical Field
The utility model belongs to organic Rankine cycle system, especially an organic Rankine cycle system that waste gas burns.
Background
The waste gas incinerator used in the insulating material industry at present mainly has direct-fired waste gas incinerator and heat accumulating type waste gas combustion furnace, and the heat accumulating material in the heat accumulating type waste gas combustion furnace can store the heat generated by combustion, when the temperature of the heat accumulating material exceeds the ignition point of organic waste gas, the burner can not be started, the temperature of the heat accumulating material in the heat accumulating chamber is utilized to ignite the organic waste gas, so that the energy consumption is reduced, but the high-temperature tail gas processed by the heat accumulating type waste gas incinerator at present is directly discharged, a large amount of heat energy exists in high-temperature flue gas and is not utilized, and the energy waste is caused.
Disclosure of Invention
In order to solve the defects in the prior art, the energy in the high-temperature tail gas generated by the waste gas incinerator is fully utilized, so an organic Rankine cycle system for waste gas incineration is provided.
The technical scheme adopted by the utility model is as follows:
the organic Rankine cycle system for waste gas incineration comprises a waste gas combustion furnace, a first-stage energy recovery unit and a second-stage energy recovery unit, wherein the waste gas combustion furnace is connected with the first-stage energy recovery unit through a first-stage waste gas output pipe, and the first-stage energy recovery unit utilizes high-temperature waste gas output by the waste gas combustion furnace to perform expansion work to generate electric energy; the second-order energy recovery unit comprises a second heat exchanger, and the energy in the exhaust steam after the first-order energy recovery unit works and the energy in the low-temperature flue gas after the first-order energy recovery unit exchanges heat is recovered by the second heat exchanger, so that the energy generated by burning the waste gas is recovered in a multi-level manner.
Further, the first-stage energy recovery unit comprises a first heat exchanger, an expander and a generator, wherein a flue inlet of the first heat exchanger is connected with an output end of a first-stage waste gas output pipe, and a flue outlet of the first heat exchanger is connected with a mixer through a second-stage waste gas output pipe; the steam outlet of the first heat exchanger is sequentially connected with an expander and a generator, and the exhaust steam outlet of the expander is connected with the mixer.
Further, a flue inlet of the second heat exchanger is connected with an outlet of the mixer, and a flue outlet of the second heat exchanger is connected with a flue gas dust remover; the cold medium inlet of the second heat exchanger is connected with the low-temperature water pipe, and the cold medium outlet of the second heat exchanger is connected with the indoor water pipe.
Further, the waste gas combustion furnace adopts a heat accumulation integrated waste gas combustion furnace, the heat accumulation integrated waste gas combustion furnace is from down to up in sequence and is provided with a waste gas chamber, a heat accumulation chamber and a combustion chamber which are mutually communicated, the waste gas chamber is connected with a waste gas input pipe and a first-stage waste gas output pipe, organic waste gas input by the waste gas input pipe sequentially enters the combustion chamber through the waste gas chamber and the heat accumulation chamber to be ignited and combusted, and meanwhile, heat accumulation is carried out after heat accumulation is carried out by heat accumulation materials in the heat accumulation chamber absorbing heat of the organic waste gas, and finally high-temperature waste gas is output from the first-stage waste gas output pipe.
The beneficial effects of the utility model are that:
the utility model discloses a set up the heat in the high temperature flue gas of first heat exchanger make full use of waste gas combustion furnace output of first order energy recovery unit utilization, because the temperature is high so can drive expander and generator acting conversion to the electric energy and store this moment. The energy in the exhaust steam after the expansion work of the first-order energy recovery unit and the low-temperature flue gas after the heat exchange of the first-order energy recovery unit is recovered by the second heat exchanger 12, and the temperature of the waste gas after the first-order energy recovery unit is reduced, so that the hot water used in the room is provided only through the heat exchange in the second stage. The utility model discloses a system can carry out the multi-level recovery to the energy of tail gas after the waste gas burns, improves energy utilization.
Drawings
FIG. 1 is a schematic diagram of an organic Rankine cycle system based on thermal storage integrated exhaust incineration;
in the figure, 1, an exhaust chamber, 2, a regenerator, 3, a combustion chamber, 4, an exhaust gas input pipe, 5, a first-stage exhaust gas output pipe, 6, a first steam output pipe, 7, an expander, 8, a generator, 9, an exhaust gas output pipe, 10, a second working medium pump, 11, a flue gas dust remover, 12, a second heat exchanger, 14, a second steam output pipe, 15, a mixed gas output pipe, 16, a mixer, 17, a waste steam output pipe, 18, a first working medium pump, 19, a working medium pump input pipe, 20, a second-stage exhaust gas output pipe, 21 and a first heat exchanger.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the utility model.
The organic Rankine cycle system based on heat accumulation integrated exhaust gas incineration as shown in FIG. 1 comprises an exhaust gas combustion furnace, a first-stage energy recovery unit and a second-stage energy recovery unit. The waste gas combustion furnace adopts a heat accumulation integrated waste gas combustion furnace, the heat accumulation integrated waste gas combustion furnace is sequentially provided with a waste gas chamber 1, a heat accumulation chamber 2 and a combustion chamber 3 which are mutually communicated from bottom to top, the waste gas chamber 1 is connected with a waste gas input pipe 4 and a first-stage waste gas output pipe 5, organic waste gas input by the waste gas input pipe 4 sequentially passes through the waste gas chamber 1 and the heat accumulation chamber 2 to enter the combustion chamber 3 to be ignited and combusted, meanwhile, heat accumulation is carried out by heat accumulation materials in the heat accumulation chamber 2 after the organic waste gas is combusted, and finally high-temperature waste gas is output from the first-stage waste gas output pipe 5; the heat storage material in the heat storage integrated waste gas combustion furnace can store heat generated by combustion, when the temperature of the heat storage material exceeds the ignition point of organic waste gas, a burner can not be started, and the organic waste gas is ignited by utilizing the temperature of the heat storage material in the heat storage chamber, so that the energy consumption is reduced.
The first-stage energy recovery unit comprises a first heat exchanger 21, an expander 7 and a generator 8, wherein the flue inlet of the first heat exchanger 21 is connected with the output end of the first-stage waste gas output pipe 5, and the flue outlet of the first heat exchanger 21 is connected with the mixer 16 through the second-stage waste gas output pipe 20; the steam inlet of the first heat exchanger 21 is connected with the first working medium pump 18 through the working medium pump input pipe 19, working medium is pumped into the first heat exchanger 21 through the first working medium pump 18, and the working medium is changed into high-temperature steam after exchanging heat with the input high-temperature waste gas in the first heat exchanger 21; the high-temperature steam is sequentially connected with the inside of the expander 7 from the steam outlet of the first heat exchanger 21 to do expansion work, and the expander 7 drives the generator 8 to generate power; the exhaust steam outlet of the expander 7 is connected with the mixer 16 through an exhaust steam output pipe 17.
The flue inlet of the second heat exchanger 12 is connected with the outlet of the mixer 16, and the flue outlet of the second heat exchanger 12 is connected with the flue gas dust remover 11; the cold medium inlet of the second heat exchanger 12 is connected with a low-temperature water pipe, a low-temperature medium is pumped into the second heat exchanger 12 through the second working medium pump 10, the cold medium outlet of the second heat exchanger 12 is connected with an indoor water pipe, and the exhaust steam after the first-order energy recovery unit works and the energy in the low-temperature flue gas after the first-order energy recovery unit exchanges heat are recovered by the second heat exchanger 12.
The above embodiments are merely for illustrating the design concept and features of the present utility model, and the purpose of the present utility model is to enable those skilled in the art to understand the present utility model and implement the same, and the protection scope of the present utility model is not limited to the above embodiments. Therefore, all equivalent changes or modifications made according to the principles and design ideas disclosed in this application are within the scope of this application.
Claims (4)
1. The organic Rankine cycle system for waste gas incineration is characterized by comprising a waste gas combustion furnace, a first-stage energy recovery unit and a second-stage energy recovery unit, wherein the waste gas combustion furnace is connected with the first-stage energy recovery unit through a first-stage waste gas output pipe (5), and the first-stage energy recovery unit utilizes high-temperature waste gas output by the waste gas combustion furnace to perform expansion work to generate electric energy; the second-order energy recovery unit comprises a second heat exchanger (12), and the energy in the exhaust steam after the first-order energy recovery unit works and the energy in the low-temperature flue gas after the first-order energy recovery unit exchanges heat is recovered by using the second heat exchanger (12), so that the energy generated by burning the waste gas is recovered in a multi-level manner.
2. An organic rankine cycle system for incineration of exhaust gas according to claim 1, characterised in that the first-stage energy recovery unit comprises a first heat exchanger (21), an expander (7) and a generator (8), the flue inlet of the first heat exchanger (21) being connected to the output of the first-stage exhaust gas output pipe (5), the flue outlet of the first heat exchanger (21) being connected to the mixer (16) by means of the second-stage exhaust gas output pipe (20); the steam outlet of the first heat exchanger (21) is sequentially connected with the expander (7) and the generator (8), and the exhaust steam outlet of the expander (7) is connected with the mixer (16).
3. An organic rankine cycle system for incineration of exhaust gas according to claim 1, characterised in that the flue inlet of the second heat exchanger (12) is connected to the outlet of the mixer (16), and the flue outlet of the second heat exchanger (12) is connected to the flue gas dust collector (11); the cold medium inlet of the second heat exchanger (12) is connected with a low-temperature water pipe, and the cold medium outlet of the second heat exchanger (12) is connected with an indoor water pipe.
4. The organic Rankine cycle system for waste gas incineration according to claim 1, wherein the waste gas combustion furnace adopts a heat storage integrated waste gas combustion furnace, the heat storage integrated waste gas combustion furnace is a waste gas chamber (1), a heat storage chamber (2) and a combustion chamber (3) which are mutually communicated from bottom to top in sequence, the waste gas chamber (1) is connected with a waste gas input pipe (4) and a first-stage waste gas output pipe (5), organic waste gas input by the waste gas input pipe (4) sequentially passes through the waste gas chamber (1) and the heat storage chamber (2) to enter the combustion chamber (3) to be ignited and combusted, and heat storage materials in the heat storage chamber (2) absorb heat generated by the combustion of the organic waste gas to store heat, and finally high-temperature waste gas is output from the first-stage waste gas output pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221970675.5U CN218914963U (en) | 2022-07-28 | 2022-07-28 | Organic Rankine cycle system for waste gas incineration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221970675.5U CN218914963U (en) | 2022-07-28 | 2022-07-28 | Organic Rankine cycle system for waste gas incineration |
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| Publication Number | Publication Date |
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| CN218914963U true CN218914963U (en) | 2023-04-25 |
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| CN202221970675.5U Active CN218914963U (en) | 2022-07-28 | 2022-07-28 | Organic Rankine cycle system for waste gas incineration |
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2022
- 2022-07-28 CN CN202221970675.5U patent/CN218914963U/en active Active
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