CN214745791U - Heat accumulating type thermal plasma incineration device - Google Patents
Heat accumulating type thermal plasma incineration device Download PDFInfo
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- CN214745791U CN214745791U CN202120475308.7U CN202120475308U CN214745791U CN 214745791 U CN214745791 U CN 214745791U CN 202120475308 U CN202120475308 U CN 202120475308U CN 214745791 U CN214745791 U CN 214745791U
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Abstract
The utility model provides a pair of heat accumulation formula thermal plasma burns device, include: the bottom of the incinerator is communicated with a flue gas channel, and the top of the incinerator is provided with a plurality of thermal plasma torches; a plurality of heat storage heat exchangers which are connected in series are paved in the flue gas channel and the incinerator, organic waste gas enters from one end of the heat storage heat exchangers which are connected in series, is discharged from one end of the heat storage heat exchanger which is positioned in the incinerator through continuous heat storage, enters into the incinerator, and is discharged from the flue gas channel after being treated by the thermal plasma torch. The utility model discloses a device is burned to heat accumulation formula thermal plasma need not preheat when using, and organic waste gas gets into heat accumulation formula thermal plasma and burns the device and split in the twinkling of an eye under thermal plasma torch effect, and heat accumulation heat exchanger absorbs the heat that thermal plasma torch burns the production, heats organic waste gas, and the energy saving realizes simplifying equipment structure, the purpose of the energy saving, and need not natural gas or fuel, does not have exogenous additional carbon and discharges, accords with the low carbon development strategy demand that the country advocated.
Description
Technical Field
The utility model relates to an organic waste gas handles the field, especially relates to a heat accumulation formula thermal plasma burns device.
Background
The heat accumulating type thermal oxidation furnace (RTO) is characterized in that a ceramic heat accumulating bed is adopted as a heat exchanger, a large amount of heat carried by gas after oxidative decomposition is transferred and stored in the heat accumulating bed, and then the gas entering an oxidizer passes through the heat accumulating bed to exchange the heat. Conventional RTO uses fuel oil or gas burning as heat source, needs to consume a large amount of oxygen, and needs to be preheated for several hours to tens of hours before starting. The conventional RTO equipment is large in size, the ceramic heat accumulator is large in wind resistance, and the conventional RTO equipment is quick in cooling and heating in work, short in service life and high in maintenance cost.
Particulate matter in organic waste gases (VOCs) can cause plugging of the ceramic heat accumulator (heat storage bed) resulting in increased flow resistance. The ceramic heat accumulator (heat accumulation bed) is also easy to be scrapped due to coking caused by tar substances in the flue gas.
In addition, the conventional RTO should fully consider the possible adverse effects of the source, composition, concentration change, gas quantity, self actual working condition and the like of the waste gas during the design, and corresponding auxiliary facilities and safety facilities are additionally arranged as required.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
The problem that exists to prior art, the utility model provides a heat accumulation formula thermal plasma burns device, this heat accumulation formula thermal plasma burns device need not preheat when using, organic waste gas (VOCs) get into heat accumulation formula thermal plasma and burns device (TP-RTO) schizolysis in the twinkling of an eye under thermal plasma torch effect, heat accumulation heat exchanger absorbs thermal plasma torch RTO and burns the heat of production, heat organic waste gas (VOCs), the energy saving, realize the simplification equipment structure, the purpose of the energy saving, and need not natural gas or fuel, no exogenous additional carbon and emission, accord with the low carbon development strategy demand of advocating in the country.
In order to realize the above purpose of the utility model, the following technical scheme is adopted:
the utility model provides a heat accumulation formula thermal plasma burns device, include: the bottom of the incinerator is communicated with a flue gas channel, and the top of the incinerator is provided with a plurality of thermal plasma torches;
a plurality of heat storage heat exchangers which are connected in series are laid in the smoke channel and the incinerator, organic waste gas enters from one end of the heat storage heat exchangers which are connected in series, is discharged from one end of the heat storage heat exchanger which is positioned in the incinerator through continuous heat storage, enters into the incinerator, and is discharged from the smoke channel after being processed by the thermal plasma torch.
In the prior art, a Regenerative Thermal Oxidizer (RTO) is mainly used for treating organic waste gas, and a conventional RTO uses fuel oil or fuel gas incineration as a heat source, consumes a large amount of oxygen and needs to be preheated for several hours to more than ten hours before starting. And the conventional RTO equipment is large in size, the ceramic heat accumulator has large wind resistance, and is quenched and suddenly heated during working, short in service life and high in maintenance cost.
The utility model discloses an structurally improving at traditional heat accumulation formula Thermal oxidation stove (RTO), adopting hot Plasma torch as the heat source, substitute natural gas or fuel to reach energy-concerving and environment-protective purpose, hot Plasma (Thermal Plasma) high-efficient schizolysis technique is based on quasi-equilibrium Plasma (Te ≈ Ti ≈ Th) The high-temperature high-enthalpy high-energy-density plasma high-efficiency electric arc is formed by energy-gathering discharge of hundreds of thousands of volts of electromotive force in a specific space, the temperature reaches 5000-6000K, and under the dual action of high temperature and high electromotive force, chemical bonds in pollutant molecules are destroyed through series of complex reactions such as excitation, ionization, oxidation, cracking, homogeneous gasification and the like, so that organic pollutants (VOCs) are ionized and cracked instantly (within 1 thousandth of one second), and therefore complex macromolecular pollutants are decomposed and converted into micromolecular safe substances, water, carbon dioxide, monomer substances and the like are formed, and the purpose of pollutant treatment is achieved. The thermal plasma cracking technology has very good industrial application prospect in the field of organic waste gas treatment.
And the utility model discloses changed the mode of traditional heat accumulation simultaneously, adopted the heat storage heat exchanger of a plurality of series connections to replace traditional ceramic heat accumulator, avoided the jam, simplified the operation to improve the mobility of air in the furnace simultaneously, realize the better processing to organic waste gas.
Of course, the utility model discloses a heat accumulation heat exchanger part is installed in the incinerator, and the part is installed on flue gas passageway, burns the heat accumulation heat exchanger that sets up in the incinerator and can show improvement heat exchange efficiency, installs the heat accumulation heat exchanger on flue gas passageway can through with the flue gas heat transfer back of each other that comes out from flue gas passageway, reach the purpose of heat accumulation.
In a word, the utility model relates to a can continuously handle heat accumulation formula thermal plasma of organic waste gas (VOCs) and burn device (TP-RTO), need not preheat during the use, organic waste gas (VOCs) get into heat accumulation formula thermal plasma and burn device (TP-RTO) schizolysis in the twinkling of an eye under the effect of thermal plasma torch.
The heat storage heat exchanger absorbs heat generated by RTO incineration of the thermal plasma torch, heats organic waste gases (VOCs), and achieves the purposes of simplifying the equipment structure and saving energy.
Preferably, as a further implementable scheme, the number of the heat storage heat exchangers is 2-4, the number of the heat storage heat exchangers laid on the flue gas channel is 2-3, and the rest heat exchangers are arranged in the incinerator.
The heat storage heat exchanger is preferably of a tube type, the tube type heat storage heat exchanger is made of heat-resistant steel, the structure is simple, the service life is long, the tube type heat storage heat exchanger in the incinerator absorbs RTO incineration heat, the temperature of organic waste gas is close to the working temperature of an RTO incineration device when the organic waste gas passes through the tube type heat storage heat exchanger, and the heat exchange efficiency is superior to that of conventional technologies such as a ceramic heat accumulator.
Preferably, as a further implementable scheme, the furnace body of the incinerator is made of a ceramic fiber heat-insulating material, and the strength and the heat-insulating property of the ceramic fiber heat-insulating layer are superior to those of the conventional heat-insulating material.
Preferably, as a further implementable scheme, the number of the heat storage heat exchangers is 3, the number of the heat storage heat exchangers laid on the flue gas channel is 2, and the vertical distance from the heat storage heat exchangers arranged in the incinerator to the thermal plasma torch is 50-80 cm.
Three groups of tube type heat storage heat exchangers are connected in series in sequence, one group of tube type heat storage heat exchanger is arranged in the incinerator, and the other two groups of tube type heat storage heat exchangers are arranged outside the flue gas channel incinerator.
After the flue gas after burning is in proper order by three group's shell and tube heat accumulation heat exchanger flue gas passageways and shell and tube outer wall heat exchange, the temperature reduces by a wide margin, discharges out through the flue gas passageway.
Organic waste gas gets into in the incinerator by three tubular heat accumulation converter shell tubes in proper order, and the flue gas flow direction reciprocal after burning, shell tube inner wall and organic waste gas contact with heat transfer for organic waste gas, and organic waste gas promotes one by one, realizes that thermal plasma RTO burns the overall process of flue gas heat exchange.
Of course, the distance between the heat storage heat exchanger in the incinerator and the thermal plasma torch cannot be too close, preferably is kept at a distance of 50-80cm, the specific actual distance can be adjusted in real time according to the size of a hearth, the treatment effect is improved, the treatment effect can be influenced if the distance is too close, and the organic waste gas is not completely treated.
The utility model discloses a thermal plasma torch reaches 3000 ℃, flame temperature surpasses 1000 ℃ by several flame core temperatures, and the array is constituteed to the thermal plasma torch that life surpassed 5 thousand hours, burns the internal even thermal field that forms of burning furnace, treats that furnace temperature reaches plasma torch self-closing behind the preset temperature. Compared with the traditional mode, the thermal plasma torch for incinerating the organic waste gas is energy-saving and efficient, the thermal efficiency of the thermal plasma torch is up to more than 90%, oxygen is not consumed, the thermal efficiency is obviously higher than that of the conventional technologies such as gas incineration, and the like, and the thermal plasma torch does not need inflammable substances such as natural gas, fuel oil and the like and has no fire safety problem.
Preferably, as a further implementable solution, the number of thermal plasma torches installed at the top of the incinerator is 2 to 6.
Preferably, as a further practicable aspect, the thermal plasma torches located in the middle are arranged in a vertical direction, and the thermal plasma torches located at both ends are arranged in an inclined direction. The arrangement along the inclined direction can improve the air circulation in the hearth.
Preferably, as a further practicable aspect, the number of the thermal plasma torches is 3, each being arranged in a vertical direction. Generally, in the actual operation process, the number of the thermal plasma torches is not suitable to be too large in consideration of the economical efficiency, and the number is set according to the size of the furnace chamber and the concentration of the organic waste gas to be treated.
Preferably, as the scheme that further can carry out, the utility model discloses a heat accumulation formula thermal plasma burns device still includes temperature sensor and air supply device, temperature sensor and air supply device sets up burn on the lateral wall of burning furnace.
Preferably, as a further implementable solution, the apparatus further includes an organic matter concentration detection instrument provided at an inlet where the organic exhaust gas enters from one end of the heat storage heat exchangers connected in series with each other. According to the organic waste gas concentration detection data, the organic matter concentration detection instrument starts the air supplement device to supplement air to the RTO, so that the incineration effect is guaranteed, and the burning and explosion accidents caused by overhigh waste gas concentration are avoided.
Preferably, as a further implementable scheme, the system further comprises a PLC controller, and the PLC controller is used for controlling the work of the incinerator and the heat storage heat exchanger. The PLC adjusts the power of the thermal plasma torch according to the detection result of the temperature sensor, and the thermal plasma torch is closed when the organic waste gas is automatically combusted, so that the energy-saving and economic virtuous cycle is realized.
Preferably, the technical parameters are input by a touch screen, and the operation of each component of the RTO incineration device is controlled by a PLC (programmable logic controller).
Preferably, as a further implementable solution, a flue gas discharge valve is provided at the bottom of the flue gas channel for controlling the discharge of flue gas. The PLC controls the opening and closing rhythm of the smoke discharge valve and adjusts the organic waste gas incineration process.
Preferably, as the further scheme that can carry out, the utility model discloses a device is still including letting out the device of exploding, when RTO equipment takes place the deflagration, lets out the device of exploding and opens guarantee system safety.
Compared with the prior art, the utility model discloses a technological effect lies in:
the utility model discloses a heat accumulation formula thermal plasma burns device need not preheat when using, organic waste gas (VOCs) get into heat accumulation formula thermal plasma burns device (TP-RTO) schizolysis in the twinkling of an eye under thermal plasma torch effect, heat accumulation heat exchanger absorbs the heat that thermal plasma torch RTO burned the production, heat organic waste gas (VOCs), the energy saving realizes the simplification equipment structure, the purpose of the energy saving, and need not natural gas or fuel, no exogenous additional carbon and emission, accord with the low carbon development strategy demand that the country advocated.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a regenerative thermal plasma incineration apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a heat storage heat exchanger of the heat storage type thermal plasma incineration device according to the embodiment of the present invention.
Description of the drawings:
1-an incinerator; 2-thermal plasma torch;
3-ceramic fiber heat-insulating layer; 4-heat storage heat exchanger;
5-a flue gas channel; 6-smoke discharge valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
As shown in fig. 1-2, the heat accumulating type thermal plasma burning device of the present invention comprises: the incinerator 1 is communicated with a flue gas channel 5 at the bottom of the incinerator 1, a plurality of thermal plasma torches 2 are mounted at the top of the incinerator 1, the number of the thermal plasma torches 2 in the embodiment can be 2-6, preferably 3, the thermal plasma torches 2 in the middle are arranged in the vertical direction, the thermal plasma torches 2 at two ends are arranged in the oblique direction, or all the thermal plasma torches 2 are arranged in the vertical direction, and the arrangement in the oblique direction can improve the air circulation in a hearth.
A plurality of heat storage heat exchangers 4 which are connected in series are laid in the flue gas channel 5 and the incinerator 1, organic waste gas enters from one end of the heat storage heat exchangers 4 which are connected in series and then is discharged from one end of the heat storage heat exchanger 4 positioned in the incinerator 1 through continuous heat storage and enters into the incinerator 1, the organic waste gas is discharged from the flue gas channel 5 after being processed by the thermal plasma torch 2, and a flue gas discharge valve 6 is arranged at the bottom of the flue gas channel 5 and used for controlling the discharge of the flue gas.
The 4 types of heat storage heat exchanger of this embodiment are shell and tube heat storage heat exchanger 4, and the tube side is walked to organic waste gas, loops through shell and tube heat storage heat exchanger 4 of establishing ties and enters into to burn burning furnace 1 internally, and the shell and tube inner wall contacts with organic waste gas and gives organic waste gas with heat transfer, and organic waste gas promotes one by one, realizes that thermal plasma RTO burns the overall process of flue gas heat exchange. The number of the tube type heat storage heat exchangers is 4, the number of the heat storage heat exchangers laid on the flue gas channel is 2-3, the rest of the heat storage heat exchangers are arranged in the incinerator 1, preferably the number of the heat storage heat exchangers 4 is 3, the number of the heat storage heat exchangers laid on the flue gas channel is 2, the vertical distance between the heat storage heat exchangers 4 arranged in the incinerator 1 and the thermal plasma torch 2 is 50-80cm, and after the incinerated flue gas is subjected to heat exchange with organic waste gas in the tube array sequentially through the flue gas channels 5 in which the three groups of tube type heat storage heat exchangers 4 are arranged, the temperature is greatly reduced, and the organic waste gas is discharged through the flue gas channels 5.
The furnace body of the incinerator 1 is made of ceramic fiber heat-insulating material, and the strength and the heat-insulating property of the ceramic fiber heat-insulating layer 3 are superior to those of conventional heat-insulating material.
The heat accumulating type thermal plasma incineration device comprises a temperature sensor, an air supplement device, an organic matter concentration detection instrument, an explosion venting device and a PLC (programmable logic controller), wherein the temperature sensor and the air supplement device are arranged on the side wall of the incinerator 1, and the organic matter concentration detection instrument is arranged at an inlet where organic waste gas enters from one end of heat accumulating heat exchangers 4 which are mutually connected in series.
Organic matter concentration detection instrument detects data according to organic waste gas concentration, start air supplement device and supply the air in to the RTO, guarantee to burn the effect, avoid the too high emergence of waste gas concentration to burn and explode the accident, the PLC controller adjusts 2 powers of hot plasma torch according to temperature sensor testing result, hot plasma torch is closed when organic matter waste gas is burnt by oneself, realize energy-conservation, the virtuous circle of economy, PLC control flue gas discharge valve 6 is opened simultaneously, close the rhythm, the regulation organic waste gas burns the technology, when RTO equipment takes place the detonation, it still can realize opening guarantee system safety to let out and explode the device, whole device can realize more intelligent operation through the PLC controller.
The PLC is provided with a touch screen to more conveniently control the operation of each component of the RTO incineration device.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.
Claims (10)
1. A regenerative thermal plasma incineration device, comprising: the bottom of the incinerator is communicated with a flue gas channel, and the top of the incinerator is provided with a plurality of thermal plasma torches;
a plurality of heat storage heat exchangers which are connected in series are laid in the smoke channel and the incinerator, organic waste gas enters from one end of the heat storage heat exchangers which are connected in series, is discharged from one end of the heat storage heat exchanger which is positioned in the incinerator through continuous heat storage, enters into the incinerator, and is discharged from the smoke channel after being processed by the thermal plasma torch.
2. A regenerative thermal plasma incineration device according to claim 1, characterised in that said regenerative heat exchangers are 2-4, the number of regenerative heat exchangers laid on said flue gas channel is 2-3, and the rest are arranged inside said incinerator.
3. A regenerative thermal plasma incineration device according to claim 2, wherein the number of said regenerative heat exchangers is 3, the number of said regenerative heat exchangers laid on said flue gas channel is 2, and the vertical distance of said regenerative heat exchangers arranged inside said incinerator from said thermal plasma torch is 50-80 cm.
4. A regenerative thermal plasma incineration device according to claim 1, wherein the number of thermal plasma torches installed at the top of the incinerator is 2-6.
5. A regenerative thermal plasma incineration device according to claim 4, characterised in that the thermal plasma torches in the middle are arranged in a vertical direction and the thermal plasma torches at both ends are in an inclined direction.
6. A regenerative thermal plasma incineration device according to claim 4, wherein the number of the thermal plasma torches is 3, all arranged in a vertical direction.
7. A regenerative thermal plasma incineration device as claimed in any one of claims 1 to 6, further comprising a temperature sensor and an air supplementary device, said temperature sensor and said air supplementary device being provided on a side wall of said incinerator.
8. A regenerative thermal plasma incineration device as claimed in any one of claims 1 to 6, further comprising an organic matter concentration detecting instrument disposed at an inlet of the organic exhaust gas from one end of the regenerative heat exchangers connected in series with each other.
9. A regenerative thermal plasma incineration device as claimed in any one of claims 1 to 6, further comprising a PLC controller for controlling the operation of the incinerator and regenerative heat exchanger.
10. A regenerative thermal plasma incineration device according to any one of claims 1 to 6, wherein a flue gas discharge valve is provided at the bottom of the flue gas channel for controlling the discharge of flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475308.7U CN214745791U (en) | 2021-03-05 | 2021-03-05 | Heat accumulating type thermal plasma incineration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475308.7U CN214745791U (en) | 2021-03-05 | 2021-03-05 | Heat accumulating type thermal plasma incineration device |
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| Publication Number | Publication Date |
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| CN214745791U true CN214745791U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202120475308.7U Active CN214745791U (en) | 2021-03-05 | 2021-03-05 | Heat accumulating type thermal plasma incineration device |
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| CN (1) | CN214745791U (en) |
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2021
- 2021-03-05 CN CN202120475308.7U patent/CN214745791U/en active Active
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