CN112097277A - Heat storage combustion system and method for organic waste gas - Google Patents
Heat storage combustion system and method for organic waste gas Download PDFInfo
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- CN112097277A CN112097277A CN202010965480.0A CN202010965480A CN112097277A CN 112097277 A CN112097277 A CN 112097277A CN 202010965480 A CN202010965480 A CN 202010965480A CN 112097277 A CN112097277 A CN 112097277A
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- 239000007789 gas Substances 0.000 title claims abstract description 102
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 83
- 238000005338 heat storage Methods 0.000 title claims abstract description 64
- 239000010815 organic waste Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001172 regenerating effect Effects 0.000 claims abstract description 32
- 238000007664 blowing Methods 0.000 claims abstract description 17
- 239000002912 waste gas Substances 0.000 claims abstract description 16
- 238000011010 flushing procedure Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 3
- 239000000919 ceramic Substances 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 15
- 238000007254 oxidation reaction Methods 0.000 claims description 15
- 238000010248 power generation Methods 0.000 claims description 9
- 238000009841 combustion method Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
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- 239000003546 flue gas Substances 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
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- 229920000742 Cotton Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
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- 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
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
- F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
- F23G7/068—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator using regenerative heat recovery means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
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- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a heat storage combustion system and method of organic waste gas, comprising at least three heat storage chambers, wherein each heat storage chamber is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively and correspondingly provided with an air inlet valve and an exhaust valve; a combustion chamber, each of said regenerators being in communication with said combustion chamber; each regenerative chamber is provided with a back-blowing port, each back-blowing port is provided with a back-blowing valve, and the back-blowing port of each regenerative chamber is connected with the back-blowing system through a pipeline; in the process of carrying out waste gas combustion treatment, at least keeping an air inlet valve of any one of the heat storage chambers and an exhaust valve of any one of the heat storage chambers open, wherein the heat storage chambers opening the air inlet valve and the exhaust valve are not the same heat storage chamber; and the back flushing valve of the heat storage chamber without opening the air inlet valve or the air outlet valve is opened, and other valves are in a closed state. The invention can reduce fuel oil quantity, improve waste gas purification rate and realize the purposes of energy saving and environmental protection.
Description
Technical Field
The invention relates to the technical field of organic waste gas combustion treatment, in particular to a heat storage combustion system and method for organic waste gas.
Background
On the premise of continuous development of the current social economy, the quality and the level of daily life of people are continuously improved, and the overall requirement on the environment is higher and higher. Particularly, in the development process of some industrial and chemical industries, a large amount of waste gas and pollutants are generated, and the waste gas not only poses a serious threat to the daily life health of people, but also has a very bad influence on the surrounding environment.
The existing direct-fired waste gas incinerator is used for burning organic waste gas, so that the organic waste gas is prevented from being directly discharged into the atmosphere. However, the existing direct-fired waste gas incinerator generally has the following disadvantages:
(1) the combustion temperature of the furnace is difficult to reach 800-900 ℃, so that the temperature of a hearth is relatively low, the oxidation and decomposition of organic matters are easy to be incomplete, a thick layer of sediment is deposited on the pipe wall of a heat exchanger of the incinerator, and when the thick layer of sediment is serious, a smoke exhaust chimney always has flaky black glue residues; it is even possible to smell certain organic odors in the surrounding area. Therefore, although the direct-fired waste gas incinerator has the function of oxidizing and decomposing the organic solvent, the exhaust emission of the incinerator can exceed the standard if the temperature of a hearth is lower.
(2) If the temperature in the hearth needs to be increased, the temperature in the incinerator can be increased only by a large amount of fuel oil, so that the fuel oil consumption is obviously increased, and the aims of energy conservation and environmental protection cannot be fulfilled.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a heat storage combustion system for organic waste gas, which can reduce the fuel oil quantity, improve the waste gas purification rate and realize the purposes of energy conservation and environmental protection.
The invention also aims to provide a heat accumulation combustion method of the organic waste gas.
One of the purposes of the invention is realized by adopting the following technical scheme:
each heat storage chamber is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively and correspondingly provided with an air inlet valve and an air outlet valve;
a combustion chamber, each of said regenerators being in communication with said combustion chamber;
each regenerative chamber is provided with a back-blowing port, each back-blowing port is provided with a back-blowing valve, and the back-blowing port of each regenerative chamber is connected with the back-blowing system through a pipeline;
in the process of carrying out waste gas combustion treatment, at least keeping an air inlet valve of any one of the heat storage chambers and an exhaust valve of any one of the heat storage chambers open, wherein the heat storage chambers opening the air inlet valve and the exhaust valve are not the same heat storage chamber; the back flushing valve of the heat storage chamber without opening the air inlet valve or the air outlet valve is opened, and other valves are in a closed state;
the exhaust port of each heat storage chamber is connected with a chimney through a pipeline, and an exhaust induced draft fan is arranged on the pipeline connected with the chimney to exhaust gas exhausted from any one heat storage chamber through the chimney; and a wind power generation device is arranged on the exhaust chimney and is connected with each valve and an exhaust draught fan through wires.
Furthermore, each heat storage chamber is internally provided with a ceramic medium layer for storing heat generated in the last oxidation period.
Further, every the air inlet of regenerator all passes through the pipe connection filter, just the filter with pipe connection between the air inlet of regenerator has the draught fan that admits air.
Further, an air inlet regulating valve is arranged at the air inlet end of the filter.
Further, the chimney is of a conical structure; and the wind wheel of the wind power generation device is connected to the top of the chimney, so that the gas exhausted from the chimney drives the wind wheel to rotate to generate electric energy.
Furthermore, an exhaust control valve is arranged on an exhaust port of the heat storage chamber.
Furthermore, an air inlet valve, an exhaust valve and a blowback valve of each heat storage chamber are electrically connected with a central control system.
Furthermore, each regenerative chamber and each combustion chamber are internally provided with a sensor, the sensors are temperature sensors and/or pressure sensors, and the sensors are connected with the central control system.
The second purpose of the invention is realized by adopting the following technical scheme:
the heat accumulation combustion method of the organic waste gas is applied to the heat accumulation combustion system of the organic waste gas, and comprises the following steps:
step S1: opening at least an air inlet valve of any one of the regenerators and an air outlet valve of any one of the regenerators, wherein the regenerators which open the air inlet valve and open the air outlet valve are not the same regenerator, and simultaneously ensuring that other valves are in a closed state;
step S2: introducing organic waste gas into the heat storage chamber with the opened air inlet valve for preheating, introducing the preheated organic waste gas into the combustion chamber through the heat storage chamber for combustion, and sending gas into the heat storage chamber with the opened exhaust valve after the combustion is finished so as to enable the heat storage chamber to absorb the temperature of the gas;
step S3: and opening the air inlet valve of the regenerator which absorbs the gas temperature, opening at least any regenerator which is not filled with the organic waste gas, and returning to the step S2 to continue circulating the steps S2 and S3 until the gas combustion treatment process is finished.
Further, the regenerator in step S2 in which the preheating of the organic waste gas is completed becomes a regenerator to be cleaned, and after the gas enters the combustion chamber from the regenerator to be cleaned, a blowback valve of the regenerator to be cleaned is opened, and the residue in the regenerator to be cleaned is purged by the blowback system and sent to the combustion chamber for secondary combustion treatment.
Compared with the prior art, the invention has the beneficial effects that:
the heat storage chamber is used for absorbing heat generated in the last oxidation period, and organic waste gas in the next oxidation period can absorb heat to preheat after entering the heat storage chamber, so that the gas temperature is increased, and the quantity of fuel oil required in the combustion chamber is reduced; and meanwhile, a back flushing system is utilized to clean the deposits deposited in the heat storage chamber and send the deposits into the combustion chamber for secondary combustion, so that oxidative decomposition is more thorough, the burnt high-temperature gas is sent into the heat storage chamber after the heat storage chamber is cleaned, and the gas temperature is stored in the heat storage chamber to provide preheating temperature for organic waste gas in the next oxidation period.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
In the figure: 1. a filter; 2. an air inlet draught fan; 3. a first regenerator; 4. a second regenerator; 5. a third regenerator; 6. a combustion chamber; 7. a blowback system; 8. exhausting and draught fan; 9. a chimney; 100. an air inlet regulating valve; 200. an intake valve; 300. an exhaust valve; 400. a blowback valve; 500. an exhaust control valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example one
Referring to fig. 1, the embodiment provides a regenerative combustion system for organic waste gas, which specifically includes at least three regenerators, a combustion chamber 6 and a blowback system 7; each heat storage chamber is internally provided with a ceramic medium layer, and when high-temperature gas with the temperature higher than the current temperature of the ceramic medium layer is introduced into the heat storage chamber, the ceramic medium layer can absorb the temperature of the gas, so that the temperature of the gas is reduced; when gas with the temperature lower than the current temperature of the ceramic medium layer is introduced into the heat storage chamber, the ceramic medium layer can release the temperature, and the effect of preheating the gas is achieved. The embodiment uses the ceramic medium layer to strengthen the heat transfer in the furnace, and the heat exchange effect is better, so the furnace chamber volume of the device with the same treatment capacity can be reduced, and compared with an oxidation furnace adopting an indirect heat exchange principle, the occupied area and the equipment investment of equipment are greatly reduced.
The ceramic medium layer in the heat storage chamber has strong adsorbability and can adsorb organic substances, so that the organic substances are retained in the high-temperature area for decomposition, the removal rate is improved, and the removal efficiency of the whole system on the organic substances is improved. The ceramic medium layer is in a honeycomb structure form, the micropore range of the ceramic medium layer is 0.5-1.4 mm, the specific surface area is large, the ceramic medium layer has large adsorption capacity and high adsorption rate, and the adsorption capacity of the ceramic medium layer is 1-10 times higher than that of common activated carbon.
Each regenerator is provided with an air inlet, an air outlet and a combustion port, the air inlet and the air outlet are respectively provided with an air inlet valve 200 and an air outlet valve 300 correspondingly, and the air inlet valve 200 and the air outlet valve 300 are used for the air inlet and the air outlet states of the regenerator so as to change the flowing direction of gas; and the combustion port of each heat storage chamber is communicated with the combustion chamber 6 through a pipeline, so that the organic waste gas in each heat storage chamber can be fed into the combustion chamber 6 for combustion, and the combusted gas can enter the heat storage chambers through pipelines to realize gas circulation.
Each regenerator is also provided with a back flushing port, each back flushing port is provided with a back flushing valve 400, each regenerator is connected with a back flushing system 7 through the back flushing port, the back flushing system 7 can blow air to the regenerator to purge residual sediments on the inner wall of the regenerator, and the sediments in the regenerator are blown into the combustion chamber 6 through air flow to carry out secondary combustion so as to completely oxidize and decompose organic matters.
The temperature in the combustion chamber 6 is uniform, the temperature of the hearth can reach 850 ℃, the high-temperature retention time of the flue gas in the furnace is long, the retention time t is more than or equal to 1.3S, the organic matter combustion destruction rate is high, the harmful odor can be fully decomposed, the odor can be fully decomposed and eliminated in the combustion chamber, and the environmental protection effect is more remarkable.
The air inlet of each heat storage chamber is connected with a filter 1 through a pipeline, and the filter 1 can filter the introduced gas and then introduce the gas into the heat storage chambers so as to remove substances such as dust in the gas and ensure that the gas entering the heat storage chambers is clean; the filter 1 can select proper filter cotton according to actual conditions so as to improve the filtering effect; meanwhile, a differential pressure gauge can be arranged on the filter 1, and the filter cotton can be replaced according to the differential pressure value.
In addition, the inlet end of filter 1 is equipped with air inlet regulating valve 100, the air input of steerable organic waste gas, and filter 1 with pipe connection between the air inlet of regenerator has an induced draft fan 2 that admits air, accelerates gas flow rate through induced draft fan 2 that admits air. An air supplementing opening can be arranged between the air inlets and used for supplementing fresh components.
The exhaust port of each regenerator is connected with an exhaust chimney 9 through a pipeline, the combusted gas can be exhausted into the atmosphere through the exhaust chimney 9, and an exhaust control valve 500 is further arranged on the exhaust port of each regenerator and can control the exhaust amount of the combusted gas; an exhaust draught fan 8 is arranged on a pipeline connected with the exhaust chimney 9, the exhaust draught fan 8 can accelerate the gas flowing speed, and the valve is matched to control the flowing direction of the main gas.
The air inlet valve 200, the air outlet valve 300, the blowback valve 400 and the valves of each regenerator are electrically connected with a central control system, and a user can control the on-off state of each valve through the central control system and can also control the on-off state of the valves through a preset program to realize the mutual matching of the devices. The heat accumulating combustion system has alternately heat accumulating and heat releasing, and the change time is selected based on the furnace temperature and the heat permeating thickness of the ceramic medium layer. When the reversing time is longer, the ceramic medium layer with small heat transmission thickness can quickly reach thermal saturation in the ceramic medium layer, so that the temperature of the flue gas leaving the regenerator is increased, the heat recovery rate is reduced, but the air preheating temperature fluctuation is small, and the furnace temperature is favorably stabilized; for the ceramic medium layer with large heat transmission thickness, the ceramic medium layer is not easy to reach thermal saturation, so the temperature of the flue gas leaving the regenerator is lower, the heat recovery rate is improved, but the air preheating temperature has large fluctuation, and is unfavorable for stabilizing the furnace temperature.
In the embodiment, the optimal reversing time is to reverse the ceramic dielectric layer when the ceramic dielectric layer is about to reach saturation, so that the preheating temperature fluctuation is small, and high heat recovery rate can be obtained. The switching time of the lift valve is 160 s-180 s. The system adopts PLC automatic combustion control, and has the advantages of strong feasibility, high automation degree, stable operation and high safety and reliability.
And sensors are arranged in each heat storage chamber and each combustion chamber 6, the sensors can be temperature sensors or pressure sensors and are respectively used for detecting the temperature and the pressure in each heat storage chamber or each combustion chamber 6, the sensors are connected with the central control system, and data detected by the sensors are uploaded to the central control system for display and abnormal data are reminded.
In the process of carrying out the waste gas combustion treatment, at least keeping an air inlet valve 200 of any regenerator and an exhaust valve 300 of any regenerator open, wherein the regenerators which open the air inlet valve 200 and open the exhaust valve 300 are not the same regenerator, a blowback valve 400 of the regenerator which does not open the air inlet valve 200 or the exhaust valve 300 is opened, and other valves are all in a closed state.
In the embodiment, three regenerators are provided, namely a first regenerator 3, a second regenerator 4 and a third regenerator 5, the waste gas passes through the first regenerator 3 to be heated and then enters a combustion chamber 6 to be burnt, and then leaves the combustion chamber 6 after becoming purified high-temperature gas and enters the second regenerator 4 (the regenerators are cooled in the previous cycle), the heat energy in the waste gas is intercepted by the ceramic medium layer of the second regenerator 4, and the temperature of the waste gas is obviously reduced and can be discharged out of the atmosphere from a smoke exhaust chimney 9 through a pipeline; at the moment, the third heat accumulating type is in a purging and purifying state; and second regenerator 4 absorbs a large amount of heat and then warms up (for heating the exhaust gas in the next cycle).
After the cycle is completed, the intake valve 200 and the exhaust valve 300 are switched once, the next cycle is entered, the exhaust gas enters the second regenerator 4, and the exhaust gas is discharged from the third regenerator 5. Before switching, the cleaned gas is purged through the blowback system 7 to the first regenerator 3, purging the residual organic matter in the pipeline and chamber. Thus, the purification rate of the waste gas is higher and can reach more than 98 percent.
Meanwhile, in order to further improve the energy utilization rate of the combustion system, a wind power generation device is further arranged on the chimney 9, wherein the chimney 9 is in a conical structure, so that combusted gases can be collected together and discharged at the top of the chimney 9; and the wind wheel of the wind power generation device is arranged at the top of the chimney 9, so that the gas exhausted from the chimney 9 drives the wind wheel to rotate so as to convert the wind energy into electric energy. The electric energy generated by the wind power generation device can be supplied to electric equipment such as valves, draught fans and sensors connected with the wind power generation device, and the electric energy can be supplied to the electric equipment.
In addition, an electric heating device is arranged in the back blowing system 7, the wind power generation device is also connected with the electric heating device to provide electric energy for the electric heating device to generate heat, so that the air blown out to the heat accumulation chamber by the back blowing system 7 has a certain temperature, the sediment remained in the heat accumulation chamber can be preheated, the sediment can be fully combusted after entering the combustion chamber 6, and the cleaning quality is improved.
In the embodiment, a three-tower heat accumulating type heat exchange device is adopted, so that a heat accumulating carrier directly exchanges heat with gas (flue gas and waste gas), the radiation temperature and pressure of a hearth are high, and the heating speed is high; the low-temperature heat exchange effect is obvious, so the heat exchange efficiency is particularly high, and the heat utilization rate is more than or equal to 96 percent; the sensible heat in the combustion products is recovered to the maximum extent, the heat efficiency is high, the exhaust gas temperature is low (120 ℃), and the energy-saving effect is obvious. Reducing fuel consumption also means reducing greenhouse gas emissions.
In the embodiment, in order to prevent the dissipation of system heat energy due to heat radiation and consider the safety of operators, pipelines, equipment and a chamber body with the surface temperature higher than 50 ℃ are insulated and kept warm; all VOC internal treatment air pipes are insulated by rock wool with the density of 100kg/m3 and the thickness of 100-150 mm, so that the temperature of the outer surface of the insulation material is always lower than the maximum value of 50 ℃, and the safety of operators is ensured.
Example two
A regenerative combustion method of organic waste gas, which is applied to the regenerative combustion system of organic waste gas in the first embodiment, comprising:
step S1: opening at least the intake valve 200 of any one of the regenerators and the exhaust valve 300 of any one of the regenerators, the regenerators that open the intake valve 200 and open the exhaust valve 300 not being the same regenerator, while ensuring that the other valves are in a closed state;
step S2: introducing organic waste gas into the heat storage chamber with the opened intake valve 200 for preheating, introducing the preheated organic waste gas into the combustion chamber 6 for combustion through the heat storage chamber, and after the combustion is finished, delivering gas into the heat storage chamber with the opened exhaust valve 300 to enable the heat storage chamber to absorb the temperature of the gas;
step S3: the gas inlet valve 200 of the regenerator that has absorbed the gas temperature is opened, at least any regenerator that is not fed with the organic waste gas is opened, and then the process returns to step S2 to continue the loop of steps S2 and S3 until the gas combustion process is finished.
And the regenerator in step S2, in which the preheating of the organic waste gas is completed, becomes the regenerator to be cleaned, and after the gas enters the combustion chamber 6 from the regenerator to be cleaned, the blowback valve 400 of the regenerator to be cleaned is opened, and the residue in the regenerator to be cleaned is purged by the blowback system 7 and sent to the combustion chamber 6 for secondary combustion treatment.
In this embodiment, three regenerators are provided, which are a first regenerator 3, a second regenerator 4 and a third regenerator 5, respectively, wherein the first regenerator 3 retains heat of the previous oxidation cycle, before starting the exhaust gas treatment, an air inlet valve 200 of the first regenerator 3 needs to be opened, an air outlet valve 300 of the second regenerator 4 is opened, all other valves are in a closed state, at this time, organic exhaust gas is introduced into the first regenerator 3, and the gas enters the first regenerator 3 and then absorbs the heat therein to preheat, so as to raise the gas temperature and ensure that the exhaust gas can reach the set oxidation temperature; the organic waste gas enters the combustion chamber 6 for combustion, and after the combustion is finished, high-temperature gas enters the second regenerative chamber 4, so that the temperature of the gas can be kept in the second regenerative chamber 4; further, since the preheating temperature in the first regenerator 3 is relatively low, a certain amount of deposits remain in the first regenerator 3, and the first regenerator 3 needs to be cleaned before being put to use in the next oxidation cycle. In the next oxidation period, the valve opened in the previous oxidation period is closed, the air inlet valve 200 of the second regenerative chamber 4 is opened, the exhaust valve 300 of the third regenerative chamber 5 is opened, the organic waste gas enters the second regenerative chamber 4 for preheating and then enters the combustion chamber 6 for combustion, and the high-temperature gas enters the third regenerative chamber 5 to keep the gas temperature in the third regenerative chamber 5 so as to carry out the next oxidation period; in the oxidation period process, the back flushing valve 400 of the first heat storage chamber 3 is opened, the back flushing system 7 purges the interior of the first heat storage chamber 3, and blows deposits into the combustion chamber 6 for secondary combustion, so that the organic gas can be combusted more thoroughly, and the purged first heat storage chamber 3 is in a clean state, so that the next oxidation period can be used.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A regenerative combustion system for organic waste gases, comprising:
each heat storage chamber is provided with an air inlet and an air outlet, and the air inlet and the air outlet are respectively and correspondingly provided with an air inlet valve and an air outlet valve;
a combustion chamber, each of said regenerators being in communication with said combustion chamber;
each regenerative chamber is provided with a back-blowing port, each back-blowing port is provided with a back-blowing valve, and the back-blowing port of each regenerative chamber is connected with the back-blowing system through a pipeline;
in the process of carrying out waste gas combustion treatment, at least keeping an air inlet valve of any one of the heat storage chambers and an exhaust valve of any one of the heat storage chambers open, wherein the heat storage chambers opening the air inlet valve and the exhaust valve are not the same heat storage chamber; the back flushing valve of the heat storage chamber without opening the air inlet valve or the air outlet valve is opened, and other valves are in a closed state;
the exhaust port of each heat storage chamber is connected with a chimney through a pipeline, and an exhaust induced draft fan is arranged on the pipeline connected with the chimney to exhaust gas exhausted from any one heat storage chamber through the chimney; and a wind power generation device is arranged on the exhaust chimney and is connected with each valve and an exhaust draught fan through wires.
2. The regenerative combustion system for organic waste gas according to claim 1, wherein each of said regenerative chambers has a ceramic medium layer for storing heat generated from a previous oxidation cycle.
3. The regenerative combustion system for organic waste gas according to claim 2, wherein an air inlet of each of the regenerators is connected to a filter through a pipe, and an air inlet induced draft fan is connected to a pipe between the filter and the air inlet of the regenerator.
4. The regenerative combustion system for organic waste gas according to claim 3, wherein an intake regulating valve is provided at an intake end of the filter.
5. The regenerative combustion system of organic waste gas according to claim 1, wherein said chimney is a conical structure; and the wind wheel of the wind power generation device is connected to the top of the chimney, so that the gas exhausted from the chimney drives the wind wheel to rotate to generate electric energy.
6. The regenerative combustion system for organic waste gas according to claim 5, wherein an exhaust control valve is further provided at an exhaust port of the regenerative chamber.
7. The regenerative combustion system for organic waste gas according to claim 1, wherein the inlet valve, the outlet valve and the blowback valve of each regenerative chamber are electrically connected to a central control system.
8. The regenerative combustion system for organic waste gas according to claim 7, wherein each of the regenerative chambers and the combustion chamber is provided with a sensor, and the sensor is a temperature sensor and/or a pressure sensor, and the sensors are connected to the central control system.
9. A regenerative combustion method of an organic waste gas, which is applied to the regenerative combustion system of an organic waste gas according to any one of claims 1 to 8, comprising:
step S1: opening at least an air inlet valve of any one of the regenerators and an air outlet valve of any one of the regenerators, wherein the regenerators which open the air inlet valve and open the air outlet valve are not the same regenerator, and simultaneously ensuring that other valves are in a closed state;
step S2: introducing organic waste gas into the heat storage chamber with the opened air inlet valve for preheating, introducing the preheated organic waste gas into the combustion chamber through the heat storage chamber for combustion, and sending gas into the heat storage chamber with the opened exhaust valve after the combustion is finished so as to enable the heat storage chamber to absorb the temperature of the gas;
step S3: and opening the air inlet valve of the regenerator which absorbs the gas temperature, opening at least any regenerator which is not filled with the organic waste gas, and returning to the step S2 to continue circulating the steps S2 and S3 until the gas combustion treatment process is finished.
10. The regenerative combustion method of organic waste gas as claimed in claim 9, wherein the regenerator in step S2 in which the preheating of organic waste gas is completed becomes the regenerator to be cleaned, and after the gas enters the combustion chamber from the regenerator to be cleaned, the back-flushing valve of the regenerator to be cleaned is opened, and the residue in the regenerator to be cleaned is purged by the back-flushing system and sent to the combustion chamber for secondary combustion treatment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965480.0A CN112097277A (en) | 2020-09-15 | 2020-09-15 | Heat storage combustion system and method for organic waste gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965480.0A CN112097277A (en) | 2020-09-15 | 2020-09-15 | Heat storage combustion system and method for organic waste gas |
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| CN112097277A true CN112097277A (en) | 2020-12-18 |
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| CN202010965480.0A Pending CN112097277A (en) | 2020-09-15 | 2020-09-15 | Heat storage combustion system and method for organic waste gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117959892A (en) * | 2024-03-28 | 2024-05-03 | 安徽迈恩能源科技有限公司 | Process for collecting and treating VOCs-containing waste gas in multiple working sections of coking plant |
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| CN117959892A (en) * | 2024-03-28 | 2024-05-03 | 安徽迈恩能源科技有限公司 | Process for collecting and treating VOCs-containing waste gas in multiple working sections of coking plant |
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