CN219624065U - Waste gas incineration device with heat energy recovery function - Google Patents
Waste gas incineration device with heat energy recovery function Download PDFInfo
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- CN219624065U CN219624065U CN202320543182.1U CN202320543182U CN219624065U CN 219624065 U CN219624065 U CN 219624065U CN 202320543182 U CN202320543182 U CN 202320543182U CN 219624065 U CN219624065 U CN 219624065U
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Abstract
The waste gas incineration device with the heat energy recovery function is characterized by comprising a main fan, a heat accumulating type oxidation furnace, a chimney and a steam drum device; the main fan is connected with the heat accumulating type oxidation furnace through a main air inlet pipe, and the heat accumulating type oxidation furnace is connected with the chimney through a main air outlet pipe; the heat accumulating type oxidation furnace is connected with the steam drum device through a heat recovery pipe, and the heat recovery pipe brings heat of the heat accumulating type oxidation furnace to the steam drum device through water circulation in the pipe to control the incineration temperature in the heat accumulating type oxidation furnace; the regenerative oxidation furnace comprises a regenerative chamber, an oxidation chamber and a burner, wherein gas passes through the regenerative chamber to reach the oxidation chamber, the burner is arranged in the oxidation chamber, the burner provides ignition and a stable heat source, and VOCs waste gas is subjected to high-temperature oxidative decomposition. According to the utility model, through the heat recovery technology of the heat recovery pipe, the regenerative oxidation furnace does not need to perform thermal bypass to normally operate when treating the high-concentration VOCs waste gas, so that the utilization rate of energy sources is improved, and the energy waste is avoided.
Description
Technical Field
The utility model belongs to the field of oil gas waste gas treatment, and particularly relates to a waste gas incineration device with a heat energy recovery function.
Background
The principle of the regenerative oxidation furnace is that organic waste gas is heated to 760 ℃ or higher, so that VOC in the waste gas is oxidized and decomposed into carbon dioxide and water. The high-temperature gas generated by oxidation flows through a special ceramic heat accumulator to heat the ceramic body to store heat, and the heat is used for preheating organic waste gas which enters subsequently. Thereby saving fuel consumption for exhaust gas warming. The ceramic heat accumulator is divided into two (more than two) areas or chambers, and each heat accumulator is subjected to heat accumulation, heat release, cleaning and other procedures in sequence, and the ceramic heat accumulator works continuously. After the heat release of the heat storage chamber, part of clean exhaust gas which is qualified after being treated is introduced immediately to clean the heat storage chamber (so as to ensure that the VOC removal rate is more than 95 percent), and the heat storage process can be carried out only after the cleaning is finished.
The concentration of the waste gas incineration of the regenerative oxidation furnace is 2.5g/m 3 When the concentration of VOCs in the waste gas is higher, the incineration temperature can continuously rise, equipment is easy to damage, and potential safety hazards exist.
Meanwhile, the fuel required by high-temperature incineration can rise sharply, so that the production cost is increased.
Further, the generated excessive heat is required to be discharged through a thermal bypass, so that the heat cannot be reasonably utilized, and the waste of resources is caused.
Disclosure of Invention
The utility model aims to provide an exhaust gas incineration device with a heat energy recovery function, which aims to solve the technical problems of heat dissipation and temperature reduction and heat energy recovery and utilization when a regenerative oxidation furnace burns high-concentration VOCs exhaust gas.
In order to achieve the above object, the specific technical scheme of the exhaust gas incineration device with the heat energy recovery function of the utility model is as follows:
an exhaust gas incineration device with a heat energy recovery function comprises a main fan, a heat accumulating type oxidation furnace, a chimney and a steam drum device;
the main fan is connected with the heat accumulating type oxidation furnace through a main air inlet pipe, and the heat accumulating type oxidation furnace is connected with the chimney through a main air outlet pipe;
the heat accumulating type oxidation furnace is connected with the steam drum device through a heat recovery pipe, the heat accumulating type oxidation furnace is connected with the steam drum device through the heat recovery pipe, the heat recovery pipe brings heat of the heat accumulating type oxidation furnace to the steam drum device through water circulation in the pipe, and the incineration temperature in the heat accumulating type oxidation furnace is controlled;
the regenerative oxidation furnace comprises a regenerative chamber, an oxidation chamber and a burner, wherein gas passes through the regenerative chamber to reach the oxidation chamber, the burner is arranged in the oxidation chamber, the burner provides ignition and a stable heat source, and VOCs waste gas is subjected to high-temperature oxidative decomposition.
In order to realize purging after high-temperature incineration, the system of the utility model further comprises a sweeping fan, and the sweeping fan is connected with the heat accumulating type oxidation furnace through a sweeping main pipe.
In order to realize pyrolysis of VOCs waste gas and improve energy use efficiency, a ceramic body is arranged in the heat storage chamber, and the ceramic body is used as a heat storage medium to preheat air intake for the next time, so that the energy use efficiency in the incineration process is improved.
In order to ensure the stable operation of the burner, the oxidation chamber is provided with the burner, and the burner is provided with an oil supply and air supply two-way system which is used in a switching way.
In order to ensure automatic and safe use, the system of the utility model adopts PLC control, and the temperature and pressure meters adopt a mode of taking two from three.
In order to realize that the heat recovered by the heat recovery pipe can be effectively used, and realize the cooling and the supplementation of hot water in the heat recovery pipe, steam and water in the steam drum device are two-phase, and the produced steam is conveyed to a factory heat supply network system, and the hot water returns to the heat recovery pipe for recycling after realizing the cooling through real-time water supplementation.
To ensure stable operation of the system, the system of the present utility model is provided with an LEL meter, a purge system, a compressed air system and an intake bypass.
In order to better realize heat dissipation, the heat recovery tube is of a fin type structure.
In order to control the temperature of the regenerator below 650 ℃, the heat recovery tubes are arranged in the regenerator.
The beneficial effects are that:
through setting up the heat recovery pipe, take away the heat that produces when burning high concentration VOCs waste gas, realize that high concentration VOCs waste gas burns and need not the heat bypass and also can normal operating, reduced the use of burning resource when having reduced the temperature of high concentration VOCs waste gas burning, saved the cost, avoided production potential safety hazard.
Drawings
FIG. 1 is a schematic diagram of an exhaust gas incineration device with heat energy recovery function according to the present utility model;
the figure indicates: 10. a main fan; 20. a regenerative oxidation furnace; 30. a drum device; 40. a chimney; 50. cleaning a fan; 11. an intake manifold; 21. a regenerator; 22. an oxidation chamber; 23. a burner; 31. a heat recovery tube; 41. a gas outlet main pipe; 51. and cleaning the main pipe.
Detailed Description
The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.
Implementation example:
as shown in fig. 1, the utility model discloses an exhaust gas incineration device with a heat energy recovery function, which is combined with a heat recovery pipe technology to recover part of flue gas heat, so that high-concentration and high-calorific-value oil gas exhaust gas can be safely treated after entering a regenerative oxidation furnace.
The main fan 10 blows waste gas into a regenerator 21 of the regenerative oxidation furnace 20 through an air inlet main pipe 11; the regenerative chamber 21 is filled with a regenerative ceramic body, so that the heat energy of the flue gas is stored in the flue gas switching process, and the waste gas is preheated in the next period; then the waste gas enters an oxidation chamber 22, the oxidation chamber 22 is a place where VOCs waste gas is decomposed, and VOCs organic matters are oxidized and decomposed at 850 ℃; the burner 23 is arranged in the oxidation chamber 22 to provide a heat source for ignition and stable operation of RTO incineration, the burner 23 is provided with an oil supply and air supply two-way system, and the two-way system can be switched according to production conditions to ensure stable operation of the burner 23; the flue gas generated after incineration enters the chimney 40 through the gas outlet header 41 and is discharged.
The heat recovery pipe 31 uses 304 normal temperature heat recovery pipes, the working medium adopts water, and the working medium adopts fin type and is layered on the shell ring. The heat recovery tube 31 absorbs heat from the hot side, the heat is transferred to the cold side through the working medium in the heat recovery tube 31, the cold side releases heat (the outer wall surface is supercooled and boiled), natural water circulation power is adopted, the heat exchange requirement of reducing the temperature of flue gas from 850 ℃ to 450 ℃ is met, the heat efficiency is high, the heat recovery efficiency of the heat recovery tube 31 is above 85%, and the economic value is obvious. When the concentration of VOCs waste gas is higher than 2.5g/m < 3 >, the heat recovery pipe 31 runs in the heat storage chamber 21 to start absorbing heat, the temperature of the heat storage chamber 21 is controlled to be not higher than 650 ℃, the incineration temperature in the oxidation chamber 22 is ensured not to be higher than 850 ℃, the heat recovery pipe 31 transmits the collected heat to the steam drum device 30, steam and water phases in the steam drum device 30 are separated at the top and then enter an external steam drum, and the water phase enters the heat recovery pipe 31 at the bottom to exchange heat. The steam is collected to a factory heating network system, factory production requirements are met, waste of heat energy is avoided, periodic boiler water replenishing meets heat exchange requirements of a steam drum device, and the steam drum device is controlled by a PLC to replenish water in real time.
The incineration device disclosed by the utility model uses the heat recovery pipe 31 to take away the redundant heat of the regenerative oxidation furnace 20 when the high-heat-value oil gas is treated, and no heat bypass is needed for emission, so that the temperatures of the oxidation chamber 22 and the regenerative chamber 21 of the regenerative oxidation furnace 20 are reduced, the stable running of the regenerative oxidation furnace 20 is ensured, and the safe use of the regenerative oxidation furnace 20 in the field of high-concentration and high-heat-value oil gas waste gas treatment is ensured. Meanwhile, the heat recovery pipe 31 brings energy to the steam drum device 30, and the steam drum device 30 conveys generated steam to a heat supply network system of a factory, so that the production requirement of the factory is met, the utilization of heat energy is realized to the maximum extent, and the energy waste is avoided.
The incinerator of the utility model adopts PLC control, and important temperature and pressure meters adopt a mode of taking three or two.
The incinerator is provided with safety devices such as a safety valve, a rupture disk, a pressure gauge and the like, so that the safe operation of the system is ensured.
The incineration device is provided with safety measures such as an LEL instrument, a purging system, a compressed air system, an air inlet bypass and the like, so that stable operation of the system is ensured.
When the incinerator is used, the main fan 10 conveys waste gas to the regenerative oxidation furnace 20 through the air inlet main pipe 11; the waste gas is preheated by the regenerator 21 and then is conveyed to the oxidation chamber 22, VOCs waste gas is oxidized and decomposed at high temperature in the oxidation chamber 23 to form flue gas, and the flue gas is conveyed to the chimney 40 through the gas outlet header 41 and then is discharged; when the concentration of the waste gas is more than 2.5g/m < 3 >, the heat recovery pipe 31 starts to operate, heat is brought to the steam drum device 30 through water circulation in the pipe, the temperature in the heat accumulating type oxidation furnace 20 is ensured to be less than 850 ℃, the heat collected by the heat recovery pipe 31 generates steam in the steam drum device 30, the steam enters a factory heat network system, the temperature of the hot water is reduced through real-time water supplementing, and the hot water returns to the heat recovery pipe for recycling; after the incineration is completed, the purge fan 50 discharges air into the regenerative oxidation furnace through the purge header pipe 51, and purging after high-temperature incineration is realized.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. The waste gas incineration device with the heat energy recovery function is characterized by comprising a main fan, a heat accumulating type oxidation furnace, a chimney and a steam drum device;
the main fan is connected with the heat accumulating type oxidation furnace through a main air inlet pipe, and the heat accumulating type oxidation furnace is connected with the chimney through a main air outlet pipe;
the heat accumulating type oxidation furnace is connected with the steam drum device through a heat recovery pipe, and the heat recovery pipe brings heat of the heat accumulating type oxidation furnace to the steam drum device through water circulation in the pipe to control the incineration temperature in the heat accumulating type oxidation furnace;
the regenerative oxidation furnace comprises a regenerative chamber, an oxidation chamber and a burner, wherein gas passes through the regenerative chamber to reach the oxidation chamber, the burner is arranged in the oxidation chamber, the burner provides ignition and a stable heat source, and VOCs waste gas is subjected to high-temperature oxidative decomposition.
2. The exhaust gas incineration device with the heat energy recovery function according to claim 1, further comprising a sweeping fan, wherein the sweeping fan is connected with the regenerative oxidation furnace through a sweeping main pipe, and purging after high-temperature incineration is achieved.
3. The waste gas incineration device with the heat energy recovery function according to claim 1, wherein a ceramic body is arranged in the heat storage chamber, and the ceramic body serves as a heat storage medium to preheat air intake of the next time, so that energy utilization efficiency of the incineration process is improved.
4. The exhaust gas incineration device with the heat energy recovery function according to claim 1, wherein the oxidation chamber is provided with a burner, and the burner is provided with an oil supply and gas supply two-way system, and the two-way system is switched for use, so that stable operation of the burner is ensured.
5. The exhaust gas incineration device with the heat energy recovery function according to claim 1, wherein the PLC control is adopted, and the temperature and pressure meters adopt a mode of three to two.
6. The waste gas incineration device with the heat energy recovery function according to claim 1, wherein steam and water phases in the steam drum device are two, generated steam is conveyed to a factory heat supply network system, and hot water is cooled by real-time water supplement and then returns to a heat recovery pipe for recycling.
7. The exhaust gas incineration device with the heat energy recovery function according to claim 1, wherein an LEL meter, a purge system, a compressed air system and an intake bypass are provided to ensure stable operation of the system.
8. The exhaust gas incineration device with the heat energy recovery function according to claim 1, wherein the heat recovery pipe is of a fin type structure.
9. The exhaust gas incineration device with the heat energy recovery function according to claim 1, wherein the heat recovery pipe is provided in the heat storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320543182.1U CN219624065U (en) | 2023-03-15 | 2023-03-15 | Waste gas incineration device with heat energy recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320543182.1U CN219624065U (en) | 2023-03-15 | 2023-03-15 | Waste gas incineration device with heat energy recovery function |
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| Publication Number | Publication Date |
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| CN219624065U true CN219624065U (en) | 2023-09-01 |
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| CN202320543182.1U Active CN219624065U (en) | 2023-03-15 | 2023-03-15 | Waste gas incineration device with heat energy recovery function |
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2023
- 2023-03-15 CN CN202320543182.1U patent/CN219624065U/en active Active
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