CN115183246A - Waste incineration system based on heat exchange type turbine and working method thereof - Google Patents
Waste incineration system based on heat exchange type turbine and working method thereof Download PDFInfo
- Publication number
- CN115183246A CN115183246A CN202210942993.9A CN202210942993A CN115183246A CN 115183246 A CN115183246 A CN 115183246A CN 202210942993 A CN202210942993 A CN 202210942993A CN 115183246 A CN115183246 A CN 115183246A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- turbine
- air
- flue gas
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a waste incineration system based on a heat exchange type turbine and a working method thereof. The high-temperature flue gas of the incinerator is subjected to heat exchange for the air of the heat exchange type turbine through the heat exchanger under the high-temperature condition, so that damage to the heat recovery device caused by sulfide dew point corrosion, halogenated hydrocarbon and other corrosive substances is avoided, and meanwhile, the high-temperature air is provided for the heat exchange type turbine to generate electricity, so that the incinerator not only can be self-sufficient, but also can output electric power to the outside, and the electric power consumption of the incinerator is saved.
Description
Technical Field
The invention relates to the field of waste incineration systems, in particular to a waste incineration system based on heat exchange type turbine power generation.
Background
The incinerator is used as an environment-friendly device for burning waste gas, waste liquid, solid waste object fuel, medical waste, household waste, animal carcasses and the like at high temperature to reduce or reduce the quantitative number, and the incinerator is widely applied, wherein the high-temperature tail gas generated by the conventional incinerator contains corrosive substances, so that dew point corrosion is easy to occur during heat exchange, and the heat recovery device is damaged, so that the heat is difficult to recycle, and most heat sources are taken away by the high-temperature tail gas to cause waste of heat sources; and the operation of the traditional incineration system needs to consume a large amount of power resources, the power cost is high, and the incinerator causes great burden to enterprises.
Disclosure of Invention
The invention aims to provide a waste incineration system based on a heat exchange type turbine and a working method thereof, which are used for solving the problems of waste of a tail gas heat source of a traditional incinerator and high power consumption in the prior art.
The invention provides a waste incineration system based on a heat exchange type turbine, which comprises an incinerator, the heat exchange type turbine and a heat exchanger, wherein two independent channels, namely an air channel and a high-temperature flue gas channel, are arranged in the heat exchanger; the air after heat exchange and temperature rise flows back into the heat exchange type turbine to generate electricity, the heat exchange type turbine supplies power to the incinerator after electricity generation and can also output electric power outwards, the outlet of the high-temperature flue gas channel is communicated to the air inlet of the quenching alkali washing equipment through a pipeline, the air outlet of the quenching alkali washing equipment is communicated to a chimney through a pipeline, and the flue gas after heat exchange and temperature reduction in the heat exchanger enters the quenching alkali washing equipment to be quenched, alkali washed and changed into low-temperature clean gas and is discharged through the chimney.
Further, set up compressor, turbine and generator in the heat exchange type turbine, the heat exchange type turbine sets up air inlet, air inlet communicates to the air inlet of compressor through the pipeline, the gas outlet of compressor communicates to the air passage entry of heat exchanger through the pipeline, the air passage export communicates to the air inlet of turbine through the pipeline, fresh air gets into the air passage that becomes high-pressure air entering heat exchanger behind the compression in the compressor and carries out the heat transfer and heat up, and the high temperature high-pressure air after the intensification gets into in the turbine and promotes the electricity generation, turns into mechanical energy with internal energy, and mechanical energy turns into the electric energy, and the turbine electricity generation principle is prior art, and the no detail is given here.
Furthermore, the air outlet of the turbine is communicated to the combustion-supporting gas inlet of the incinerator through a pipeline, tail gas of the heat exchange type turbine is used as combustion-supporting air of the incinerator, energy consumption of temperature rise of the combustion-supporting air of the incinerator is saved, meanwhile, a low-grade heat source is converted into a high-grade heat source, and air quantity of a chimney is reduced.
Furthermore, a filter is arranged at an air inlet of the heat exchange type turbine to filter impurities in the air, so that the influence on a subsequent device is avoided.
The invention also provides a working method of the waste incineration system based on the heat exchange type turbine, which comprises the following steps:
(1) High-temperature flue gas discharged from a flue gas outlet of the incinerator is conveyed to a high-temperature flue gas channel of the heat exchanger through a pipeline;
(2) The high-temperature flue gas in the high-temperature flue gas channel exchanges heat with the air input into the air channel of the heat exchange type turbine;
(3) After heat exchange and temperature reduction of the high-temperature flue gas in the heat exchanger, the high-temperature flue gas enters quenching alkali washing equipment for quenching and alkali washing;
(4) And discharging the low-temperature clean gas after quenching and alkali washing into a chimney through a channel.
Further, the method also comprises the following steps: fresh air enters the compressor through an air inlet of the heat exchange type turbine to be compressed, compressed high-pressure air enters an air channel of the heat exchanger to exchange heat and raise temperature, then enters the turbine to push power generation, and the generator outputs electric energy.
The technical scheme of the invention has the beneficial effects that:
the high-temperature flue gas of the incinerator is subjected to heat exchange for the air of the heat exchange type turbine through the heat exchanger under the high-temperature condition, so that the damage of sulfide dew point corrosion, halohydrocarbon and other corrosive substances to the heat recovery device is avoided, and meanwhile, the high-temperature air is provided for the heat exchange type turbine to generate electricity, so that the incinerator not only can be self-sufficient, but also can output electric power to the outside, and the electric power consumption of the incinerator is saved; the tail gas of the heat exchange type turbine is used as combustion-supporting air of the incinerator, so that the fuel consumption of the incinerator is reduced, a low-grade heat source is directly converted into a high-grade heat source, and the air quantity discharged by a chimney is reduced.
Drawings
FIG. 1 is a schematic view of a waste incineration system based on a heat exchange turbine according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-incinerator, 2-heat exchange type turbine, 21-compressor, 22-turbine, 23-generator, 3-heat exchanger, 4-quenching alkali washing equipment, 5-chimney and 6-filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the waste incineration system based on the heat exchange type turbine in the embodiment includes an incinerator 1, a heat exchange type turbine 2 and a heat exchanger 3, two independent passages, namely an air passage and a high temperature flue gas passage, are arranged in the heat exchanger 3, the air passage and the heat exchange type turbine 2 form a loop, air of the heat exchange type turbine 2 flows through the air passage of the heat exchanger 3 to exchange heat and raise temperature, a flue gas outlet of the incinerator 1 is communicated to an inlet of the high temperature flue gas passage of the heat exchanger 3 through a pipeline, high temperature flue gas of the incinerator 1 enters the high temperature flue gas passage of the heat exchanger 3 to exchange heat for air of the air passage, the high temperature flue gas exchanges heat in the heat exchanger 3 under a high temperature environment, a high temperature flue gas heat source is fully utilized, and meanwhile, dew point corrosion is prevented from corroding the heat exchanger 3; the conventional heat exchange has the risk of dew point corrosion because the heat exchange temperature is low, the flue gas dew point corrosion is that SO2 and SO3 are generated when sulfur element in fuel is combusted, when the temperature of a heat exchange surface is lower than the flue gas dew point temperature, sulfuric acid fog dew is formed on the heat exchange surface to cause corrosion of the heat exchange surface, the heat exchanger 3 exchanges heat with air at high temperature, the temperature is higher than the dew point temperature of corrosive gas such as sulfur dioxide, the corrosive gas cannot form fog beads, and therefore equipment cannot be corroded; besides the corrosion of sulfide, the corrosion of other halogenated hydrocarbon and the like can be avoided; the air after heat exchange and temperature rise flows back into the heat exchange type turbine 2 to generate power, the heat exchange type turbine 2 supplies power to the incinerator 1 after power generation, self-sufficiency of the incinerator 1 is achieved, electric power can be output outwards, the outlet of the high-temperature flue gas channel is communicated to the air inlet of the quenching alkali washing equipment 4 through a pipeline, the air outlet of the quenching alkali washing equipment 4 is communicated to the chimney 5 through a pipeline, and the flue gas after heat exchange and temperature reduction in the heat exchanger 3 enters the quenching alkali washing equipment 4 to be quenched alkali washed, changed into low-temperature clean gas and discharged through the chimney 5.
Further, a compressor 21, a turbine 22 and a generator 23 are arranged in the heat exchange type turbine 2, the heat exchange type turbine 2 is provided with an air inlet, the air inlet is communicated with an air inlet of the compressor 21 through a pipeline, an air outlet of the compressor 21 is communicated with an air channel inlet of the heat exchanger 3 through a pipeline, an air channel outlet is communicated with an air inlet of the turbine 22 through a pipeline, fresh air enters the compressor 21 to be compressed and then becomes high-pressure air, enters an air channel of the heat exchanger 3 to be subjected to heat exchange and temperature rise, the high-temperature high-pressure air after temperature rise enters the turbine 22 to push power generation, internal energy is converted into mechanical energy, the mechanical energy is converted into electric energy, the turbine power generation principle is the prior art, and details are not described here.
Furthermore, the air outlet of the turbine 22 is communicated to the combustion-supporting gas inlet of the incinerator 1 through a pipeline, and the tail gas of the heat exchange type turbine 2 is used as the combustion-supporting air of the incinerator 1, so that the energy consumption of the temperature rise of the combustion-supporting air of the incinerator 1 is saved, meanwhile, a low-grade heat source is converted into a high-grade heat source, and the air volume of the chimney 5 is reduced.
Further, a filter 6 is installed at an air inlet of the heat exchange type turbine 2 to filter impurities in the air, so that influence on subsequent devices is avoided.
The working method of the waste incineration system based on the heat exchange type turbine comprises the following steps:
(1) High-temperature flue gas discharged from a flue gas outlet of the incinerator 1 is conveyed to a high-temperature flue gas channel of the heat exchanger 3 through a pipeline;
(2) The high-temperature flue gas in the high-temperature flue gas channel exchanges heat with the air input into the air channel of the heat exchange type turbine 2;
(3) The high-temperature flue gas enters a quenching alkali washing device 4 for quenching and alkali washing after heat exchange and temperature reduction in a heat exchanger 3;
(4) The low temperature clean gas after quenching and alkali washing is discharged into a chimney 5 through a channel.
Further comprising: fresh air enters the compressor 21 through an air inlet of the heat exchange type turbine 2 to be compressed, compressed high-pressure air enters an air channel of the heat exchanger 3 to exchange heat and raise temperature, then enters the turbine 22 to drive power generation, and the generator 23 outputs electric energy.
In conclusion, the high-temperature flue gas of the incinerator exchanges heat for the air of the heat exchange type turbine through the heat exchanger under the high-temperature condition, so that the damage to a heat recovery device caused by dew point corrosion is avoided, and meanwhile, the high-temperature air is provided for the heat exchange type turbine to generate electricity, so that the self-sufficiency is realized, the electric power can be output outwards, and the electric power consumption of the incinerator is saved; the tail gas of the heat exchange type turbine is used as combustion-supporting air of the incinerator, so that the fuel consumption of the incinerator is reduced, a low-grade heat source is directly converted into a high-grade heat source, and the air quantity discharged by a chimney is reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The waste incineration system based on the heat exchange type turbine is characterized by comprising an incinerator, the heat exchange type turbine and a heat exchanger, wherein two independent channels, namely an air channel and a high-temperature flue gas channel, are arranged in the heat exchanger, the air channel and the heat exchange type turbine form a loop, a flue gas outlet of the incinerator is communicated to an inlet of the high-temperature flue gas channel of the heat exchanger through a pipeline, an outlet of the high-temperature flue gas channel is communicated to an air inlet of a quenching alkali washing device through a pipeline, and an air outlet of the quenching alkali washing device is communicated to a chimney through a pipeline.
2. A heat exchange turbine based waste incineration system according to claim 1, wherein a compressor, a turbine and a generator are provided within the heat exchange turbine, the heat exchange turbine is provided with an air inlet connected to an air inlet of the compressor by a pipe, an air outlet of the compressor is connected to an air channel inlet of the heat exchanger by a pipe, and an air channel outlet is connected to an air inlet of the turbine by a pipe.
3. A heat exchange turbine based waste incineration system according to claim 2, characterised in that the turbine outlet is connected by a conduit to a combustion gas inlet of an incinerator.
4. A heat exchange turbine based waste incineration system according to claim 1, wherein a filter is mounted at the air inlet of the heat exchange turbine.
5. A method of operating a waste incineration system based on a heat exchange turbine, comprising the steps of:
(1) High-temperature flue gas discharged from a flue gas outlet of the incinerator is conveyed to a high-temperature flue gas channel of the heat exchanger through a pipeline;
(2) The high-temperature flue gas in the high-temperature flue gas channel exchanges heat with the air input into the air channel of the heat exchange type turbine;
(3) After heat exchange and temperature reduction of the high-temperature flue gas in the heat exchanger, the high-temperature flue gas enters quenching alkali washing equipment for quenching and alkali washing;
(4) And discharging the low-temperature clean gas subjected to quenching and alkali washing into a chimney through a channel.
6. The method of operating a heat exchange turbine based waste incineration system as set forth in claim 5, further comprising: fresh air enters the compressor through an air inlet of the heat exchange type turbine to be compressed, compressed high-pressure air enters an air channel of the heat exchanger to exchange heat and raise temperature, then enters the turbine to push power generation, and the generator outputs electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210942993.9A CN115183246A (en) | 2022-08-08 | 2022-08-08 | Waste incineration system based on heat exchange type turbine and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210942993.9A CN115183246A (en) | 2022-08-08 | 2022-08-08 | Waste incineration system based on heat exchange type turbine and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115183246A true CN115183246A (en) | 2022-10-14 |
Family
ID=83523225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210942993.9A Pending CN115183246A (en) | 2022-08-08 | 2022-08-08 | Waste incineration system based on heat exchange type turbine and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115183246A (en) |
-
2022
- 2022-08-08 CN CN202210942993.9A patent/CN115183246A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204593353U (en) | A kind of integrated system of deep exploitation residual heat from boiler fume | |
| CN205717147U (en) | A kind of full load denitration utilizes and air preheater corrosion-and blocking-prevention coupled system with fume afterheat | |
| CN111023076A (en) | Full-open type absorption heat pump for flue gas waste heat full-heat gradient depth recovery | |
| CN114777503A (en) | Flue gas technology based on heat recovery coke oven | |
| CN105371669A (en) | Power generating system and method by jointly recycling waste heat of glass melting kiln flue gas and annealing kiln waste gas | |
| CN115183246A (en) | Waste incineration system based on heat exchange type turbine and working method thereof | |
| CN217978823U (en) | Waste incineration system based on heat exchange type turbine | |
| CN109854318B (en) | Biomass direct-fired cogeneration system and method | |
| CN201819192U (en) | Two-stage serial-parallel boiler tail heat exchanger | |
| CN113686190B (en) | System and method for comprehensively recycling and utilizing low-temperature waste heat | |
| CN202947489U (en) | Waste-heat cascaded utilization system at low-temperature sections of sintering circular cooling machine | |
| CN214247503U (en) | Heat conduction oil furnace and organic Rankine cycle coupled gas turbine waste heat recovery system | |
| CN202328161U (en) | Three-stage gas cooling device of gas turbine generator set | |
| CN205299567U (en) | Energy -conserving low dust discharges coal -fired thermal power system | |
| CN109140492B (en) | Boiler smoke-wind coupling waste heat recovery system | |
| CN210424996U (en) | Energy comprehensive utilization system of gas boiler | |
| CN104100957B (en) | A kind of boiler waste heat recovery system | |
| CN102588944A (en) | Low-temperature flue-gas heat recycling and utilization system | |
| CN112483250A (en) | Heat conduction oil furnace and organic Rankine cycle coupled gas turbine waste heat recovery system | |
| CN202328127U (en) | Smoke waste heat recycling device for coke oven | |
| CN104896492A (en) | Energy-saving and low-dust emission coal-fired power generation system | |
| CN210345485U (en) | Claus tail gas combustion waste heat application equipment | |
| CN218065983U (en) | Blast furnace slag flushing water and gas generator set flue gas waste heat comprehensive utilization system | |
| CN214403766U (en) | Flue gas recirculation system based on gas-steam combined cycle | |
| CN218760056U (en) | Waste heat utilization system of thermal power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |