CN108592050B - Thermal oxidation device - Google Patents

Thermal oxidation device Download PDF

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Publication number
CN108592050B
CN108592050B CN201810478638.4A CN201810478638A CN108592050B CN 108592050 B CN108592050 B CN 108592050B CN 201810478638 A CN201810478638 A CN 201810478638A CN 108592050 B CN108592050 B CN 108592050B
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chamber
gas
air
heat exchange
oxidation
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CN108592050A (en
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简甦
严翔
张桂超
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Verboca Energy Saving Technologies Co ltd
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Verboca Energy Saving Technologies Co ltd
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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
    • F23G7/063—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating electric heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00—Supplementary heating arrangements
    • F23G2204/20—Supplementary heating arrangements using electric energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2900/00—Special features of, or arrangements for incinerators
    • F23G2900/50213—Preheating processes other than drying or pyrolysis
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)

Abstract

The invention provides a thermal oxidation device, and belongs to the field of gas treatment. The thermal oxidation apparatus includes: the air inlet chamber, the heat exchange chamber, the oxidation chamber and the blocking chamber are arranged between the air inlet chamber and the heat exchange chamber, and an air pressure supply device is arranged on the blocking chamber and used for providing positive pressure or negative pressure for the blocking chamber; the blocking compartment is arranged between the air inlet chamber and the heat exchange chamber; a plurality of air guide pipes. The thermal oxidation device can not only enable the gas to be oxidized to be fully oxidized, but also prevent the gas to be oxidized from escaping into the external environment.

Description

Thermal oxidation device
Technical Field
The invention relates to the field of gas treatment, in particular to a thermal oxidation device.
Background
The existing organic waste gas thermal oxidation treatment device mainly comprises a direct-fired thermal oxidation furnace and a regenerative oxidation furnace. The thermal oxidation treatment device oxidizes organic matters (VOCs) in the exhaust gas into corresponding carbon dioxide and water at high temperature, so as to purify the exhaust gas and recover heat released during the decomposition of the exhaust gas.
The direct combustion type thermal oxidation furnace is divided into a heat recovery type and a non-heat recovery type. The heat recovery type direct combustion type thermal oxidation furnace directly sends the organic mixed waste gas into the waste gas incinerator through the action of an induced draft fan, the organic mixed waste gas firstly enters a heat exchanger for preheating, so that the organic mixed waste gas exchanges heat with high-temperature flue gas after combustion, then enters a hearth, and the mixed gas is decomposed into carbon dioxide and water under the high-temperature effect of flame of a combustor. If the temperature of the entered mixed waste gas reaches the reaction temperature, the burner can be closed; if the reaction temperature is not reached, the compensation heating is realized through the flame of the burner, so that the burner is completely combusted. Because the heat recovery type heat exchanger material is limited by temperature resistance, the heat recovery type direct-fired thermal oxidation furnace is mostly used for treating low-concentration gas, so that the direct-fired thermal oxidation furnace without heat recovery is the simplest thermal oxidation furnace, the temperature of organic mixed gas is increased to the reaction temperature by utilizing the heat generated by the combustion flame of auxiliary fuel, oxidative decomposition occurs, and the treated high-temperature flue gas is directly discharged through a chimney.
The main body structure of the regenerative oxidation furnace consists of a combustion chamber, a regenerative chamber, a switching valve and the like. The heat accumulating type oxidation furnace adopts a ceramic heat accumulating material to absorb and release heat, the heat of high-temperature flue gas discharged from a combustion chamber is accumulated, and organic mixed waste gas entering a heat accumulating bed is preheated, and the organic mixed waste gas preheated to a certain temperature is subjected to oxidation reaction in the combustion chamber to generate carbon dioxide and water, so that the carbon dioxide and water are purified.
When the heat accumulating type oxidation furnace is used for treating waste gas, the valve needs to be switched frequently, the performance and sealing requirements on the valve are high, organic gas leakage, gas leakage and the like are easy to cause, and the treatment efficiency is reduced.
Disclosure of Invention
The present invention provides a thermal oxidation apparatus, which aims to solve the above problems of the thermal oxidation apparatus in the prior art.
The invention is realized in the following way:
a thermal oxidation apparatus comprising:
the air inlet chamber is provided with a first air inlet;
the heat exchange chamber is provided with a first air outlet, and the first air outlet is arranged at one end, close to the air inlet chamber, of the heat exchange chamber;
the oxidation chamber is communicated with one end, far away from the air inlet chamber, of the heat exchange chamber, and a heating piece for heating gas in the oxidation chamber is arranged in the oxidation chamber;
the separation chamber is arranged between the air inlet chamber and the heat exchange chamber, and is provided with an air pressure supply device which is used for providing positive pressure or negative pressure for the separation chamber;
the air guide pipelines penetrate through the separation chamber and the heat exchange chamber, one ends of the air guide pipelines are located in the air inlet chamber, and the other ends of the air guide pipelines are located in the oxidation chamber;
the air inlet chamber is divided into a first isolation plate and a second isolation plate, and the first isolation plate and the second isolation plate are respectively provided with a through hole for the air duct to penetrate.
In a preferred embodiment of the invention, a flow guide is arranged inside the heat exchange chamber, and the flow guide is used for controlling the flow path of the gas from the oxidation chamber to the first gas outlet so as to increase the flow path of the gas in the heat exchange chamber.
In a preferred embodiment of the present invention, the plurality of flow guiding members are arranged in a plate shape, the plurality of flow guiding members are arranged at intervals along the axial direction of the air guiding pipeline, air holes for passing air are formed between the plurality of flow guiding members and the heat exchange chamber, and adjacent air holes are respectively arranged at two sides of the axial direction of the air guiding pipeline.
In a preferred embodiment of the present invention, the heat exchange chamber is provided with a waste heat bypass port, the waste heat bypass port is disposed between the oxidation chamber and the first air outlet, and the heat exchange chamber is connected with a second control valve, and the second control valve is used for controlling the flow of the gas flowing out from the heat exchange chamber through the waste heat bypass port.
In a preferred embodiment of the present invention, a flow dividing plate is disposed inside the oxidation chamber, and the flow dividing plate is used for dividing the gas flowing out of the plurality of gas guide pipelines towards different directions so as to strengthen turbulence of the gas flowing out of the plurality of gas guide pipelines inside the oxidation chamber.
In a preferred embodiment of the present invention, an end of the air guide pipe, which is close to the flow dividing plate, is provided with an arc shape, and an extension direction of the arc-shaped end is the same as a flow dividing direction of the flow dividing plate, and the air guide pipe and the flow dividing plate are both made of silicon carbide materials.
In a preferred embodiment of the present invention, the heating element is made of silicon carbide material, the heating elements are arranged in a plurality of spaced-apart manner, the plurality of heating elements penetrate the oxidation chamber, and the extending directions of the plurality of heating elements are perpendicular to the flowing direction of the gas in the oxidation chamber.
In a preferred embodiment of the present invention, the heat exchange chamber includes a first housing and a first heat insulating member, the first housing wraps the first heat insulating member, the first heat insulating member is made of a heat insulating material, and the first housing is made of a metal material.
In a preferred embodiment of the present invention, the oxidation chamber includes a second housing and a second insulating member, the second housing wraps the second insulating member, the second insulating member is made of a heat insulating material, and the second housing is made of a metal material.
In a preferred embodiment of the present invention, the apparatus further comprises a second gas supply device, wherein the second gas supply device is connected with the first gas inlet, and the second gas supply device is used for pumping the gas to be oxidized into the gas inlet chamber.
The beneficial effects of the invention are as follows:
according to the thermal oxidation device designed and obtained in the invention, when the thermal oxidation device is used, the gas to be oxidized enters the air inlet chamber through the first air inlet, then enters the air guide pipeline, firstly passes through the baffle chamber in the air guide pipeline, then passes through the heat exchange chamber, and then enters the oxidation chamber for oxidation, the heating element heats the gas in the oxidation chamber, the temperature of the gas to be oxidized is higher than the temperature required by the oxidation of the gas to be oxidized, at the moment, the gas to be oxidized performs oxidation reaction, heat and tail gas are released, the tail gas passes through the heat exchange chamber and the air guide pipeline for heat exchange, so that the gas to be oxidized in the air guide pipeline can be heated, the gas to be oxidized in the air guide pipeline can be partially oxidized in the air guide pipeline, when the gas in the air guide pipeline flows out from the air guide pipeline, the gas in the air guide pipeline can flow out along with high pressure, the inside the oxidation chamber is fully mixed, the oxidation chamber is favorable for improving the oxidation degree, and when the baffle chamber is positive pressure and is larger than the air chamber, the air pressure in the air exchange chamber is favorable for heat exchange chamber, the air expansion chamber is favorable for reducing the temperature of the air exchange chamber, the air to be prevented from escaping from the heat exchange chamber is favorable for the air inlet chamber and the heat exchange chamber, and the air pressure of the air exchange chamber is not influenced by the heat exchange chamber, and the air exchange chamber is reduced, and the temperature of the air exchange chamber is favorable for the air exchange chamber is easy to be cooled down, and the air chamber is cooled down, the gas escaping into the blocking chamber in the air inlet chamber or the heat exchange chamber is connected with the second gas supply device through the pipeline by the traction device, so that leakage gas reenters the air inlet chamber, and untreated gas is effectively prevented from leaking outwards. In summary, the thermal oxidation device not only can fully oxidize the gas to be oxidized, but also can prevent the gas to be oxidized from escaping into the external environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a thermal oxidizer according to an embodiment of the present invention;
FIG. 2 is a schematic view of a thermal oxidizer having a second gas supply device according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first separator in a thermal oxidizer according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a flow guide in a thermal oxidation apparatus according to an embodiment of the present invention.
Icon: 100-a thermal oxidation unit; a 110-oxidation chamber; 111-a second housing; 112-a second insulating member; 120-heating element; 130-a diverter plate; 140-a flow guide; 141-a vent hole; 150-an air guide pipeline; 160-a heat exchange chamber; 161-a first housing; 162-a first thermal insulation member; 164-waste heat bypass port; 165-a second control valve; 166-first air outlet; 170-a barrier compartment; 171-pneumatic pressure supply means; 175-a first separator; 176-a second separator; 180-an intake chamber; 181-a first air inlet; 182-a second gas supply means.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Example 1
The present embodiment provides a thermal oxidation apparatus 100, please refer to fig. 1, 2, 3 and 4, wherein the line in fig. 1 and 2 indicates the flow direction of the gas in the oxidation chamber 110.
Such a thermal oxidation apparatus 100 includes:
an intake chamber 180, the intake chamber 180 being provided with a first intake port 181;
the heat exchange chamber 160 is provided with a first air outlet 166, and the first air outlet 166 is arranged at one end of the heat exchange chamber 160, which is close to the air inlet chamber 180;
the oxidation chamber 110, the oxidation chamber 110 and one end of the heat exchange chamber 160 far away from the air inlet chamber 180 are communicated, and a heating element 120 for heating the gas in the oxidation chamber 110 is arranged in the oxidation chamber 110;
a blocking chamber 170, wherein the blocking chamber 170 is arranged between the air inlet chamber 180 and the heat exchange chamber 160, and an air pressure supply device 171 is arranged on the blocking chamber 170, and the air pressure supply device 171 is used for providing positive pressure or negative pressure for the blocking chamber 170;
the plurality of air guide pipelines 150, the plurality of air guide pipelines 150 penetrate through the baffle compartment 170 and the heat exchange chamber 160, one ends of the plurality of air guide pipelines 150 are positioned in the air inlet chamber 180, and the other ends of the plurality of air guide pipelines 150 are positioned in the oxidation chamber 110;
the baffle chamber 170 and the air inlet chamber 180 are separated by a first separation plate 175, the baffle chamber 170 and the heat exchange chamber 160 are separated by a second separation plate 176, and through holes for the air guide pipeline 150 to penetrate are formed in the first separation plate 175 and the second separation plate 176.
The gas to be oxidized, which needs to be oxidized, firstly enters the air inlet chamber 180 through the first air inlet 181, then enters the air guide pipeline 150, passes through the baffle compartment 170 in the air guide pipeline 150, then passes through the heat transfer chamber 160, then enters the oxidation chamber 110 for oxidation, the temperature of the gas in the oxidation chamber 110 is higher than the temperature required by the gas oxidation to be oxidized, at this time, the gas to be oxidized carries out oxidation reaction, heat and tail gas are released, the tail gas passes through the heat transfer chamber 160 and the air guide pipeline 150 for heat exchange of the gas to be oxidized, thereby heating the gas to be oxidized in the air guide pipeline 150, the gas to be oxidized in the air guide pipeline 150 can be preheated, the gas to be oxidized in the air guide pipeline 150 can be partially oxidized in the air guide pipeline 150, and thus the gas in the air guide pipeline 150 flows out of the air guide pipeline 150 along with high pressure and rapidly, the inside of the oxidation chamber 110 is fully mixed, the oxidation degree is improved, the gas in the baffle chamber 170 is positive air pressure and is greatly higher than the temperature of the heat transfer chamber 160, the gas to be oxidized is not influenced by the heat transfer chamber 180, the air can be effectively prevented from escaping from the heat transfer chamber 180, the heat transfer chamber is not influenced by the heat transfer chamber 180, the heat transfer chamber is reduced, the temperature of the air is not influenced by the heat transfer chamber 180 is reduced, and the heat transfer chamber is not influenced by the heat transfer chamber 170, and the heat transfer chamber is reduced in the heat transfer chamber is greatly is easy, and the temperature is reduced, and the temperature is easy to be reduced, and the heat is easy to be easily and is easy to be cooled.
Since the higher the concentration of the organic matter in the gas to be oxidized, the more heat it releases during the oxidation, the more fully the gas to be oxidized is oxidized in the gas guide pipe 150, and the oxidation of the gas to be oxidized in the oxidation chamber 110 can reach a very high level in the case of being applied to the higher concentration of the organic matter in the gas to be oxidized.
In this embodiment, when the blocking chamber 170 is at positive pressure, the air pressure supply device 171 is a fan, and air in the external environment is sent into the blocking chamber 170 by the fan, so as to provide a high-pressure environment for the interior of the blocking chamber 170, to prevent gas in the air inlet chamber 180 or the heat exchange chamber 160 from escaping, and when the blocking chamber 170 is at negative pressure, the negative pressure supply device 171 is a fan, and draws gas in the blocking chamber 170 by using the air inlet of the fan to form negative pressure, so that the air in the air inlet chamber 180 or the heat exchange chamber 160 escapes into the blocking chamber 170, and is connected with the second gas supply device 182 through a pipeline, so that untreated gas reenters the air inlet chamber 180, thereby effectively preventing untreated gas from leaking.
Optionally, in the present embodiment, a flow guiding member 140 is provided inside the heat exchange chamber 160, and the flow guiding member 140 is used to control the flow path of the gas from the oxidation chamber 110 to the first gas outlet 166, so as to increase the flow path of the gas in the heat exchange chamber 160.
The flow guide 140 may extend the flow path of the gas from the oxidation chamber 110 to the first gas outlet 166, so that the residence time of the gas in the heat exchange chamber 160 may be extended, so that the heat exchange effect of the gas flowing into the heat exchange chamber 160 from the oxidation chamber 110 on the gas in the gas guide pipe 150 may be improved, and the temperature of the gas in the gas guide pipe 150 may be increased.
Optionally, in this embodiment, the flow guiding elements 140 are configured in a plate shape, the flow guiding elements 140 are configured in a plurality, the plurality of flow guiding elements 140 are configured along the axial direction of the air guiding pipeline 150 at intervals, the plurality of flow guiding elements 140 and the heat exchange chamber 160 form ventilation holes 141 through which air passes, and adjacent ventilation holes 141 are respectively configured at two sides of the axial direction of the air guiding pipeline 150.
The flow guide 140 changes the flow path of the gas in the heat exchange chamber 160 into an S shape, and thus the heat exchange effect of the gas flowing into the heat exchange chamber 160 from the oxidation chamber 110 on the gas in the gas guide pipe 150 can be effectively improved.
Since the flow guide member 140 is configured in a plate shape, the heat exchange chamber 160 can be divided into a plurality of connected parts, the temperature of each part is inconsistent, the temperature of the part close to the oxidation chamber 110 is higher than the temperature of the part far away from the oxidation chamber 110, and the waste heat bypass ports 164 can be arranged at different positions according to the different temperatures of the different parts, so that the waste heat utilization requirements of gases with different temperatures are met, and meanwhile, the heat generated by waste gas is used for preheating the gas to be treated as much as possible.
Optionally, in this embodiment, the heat exchange chamber 160 is provided with a waste heat bypass port 164, the waste heat bypass port 164 is disposed between the oxidation chamber 110 and the first air outlet 166, the heat exchange chamber 160 is connected with a second control valve 165, and the second control valve 165 is used for controlling the flow rate of the gas in the heat exchange chamber 160 flowing out through the waste heat bypass port 164.
The second control valve 165 controls the amount of gas flowing out of the waste heat bypass port 164 by controlling the flow rate of gas through the waste heat bypass port 164, so that different amounts of gas can be controlled to flow out through the waste heat bypass port 164 according to the need for heat.
In this embodiment, the position of the waste heat bypass port 164 may be set according to actual requirements, and the position of the waste heat bypass port 164 is determined by the temperature on the heat exchange chamber 160 due to the different temperatures of the different positions on the heat exchange chamber 160.
Alternatively, in the present embodiment, the second control valve 165 is a flow control valve.
The flow control valve is well known to those skilled in the art, and the specific structure and use thereof are well known in the art and will not be described in detail herein.
Optionally, in the present embodiment, a flow dividing plate 130 is disposed inside the oxidation chamber 110, and the flow dividing plate 130 is used to divide the gas flowing out of the plurality of gas guide pipelines 150 toward different directions so as to promote turbulence of the gas flowing out of the plurality of gas guide pipelines 150 inside the oxidation chamber 110.
The flow dividing plate 130 divides the gas in the oxidation chamber 110, and the gas moving in different directions needs to flow into the heat exchange chamber 160, and collide and form turbulence on the way of flowing into the heat exchange chamber 160, so that the sufficient mixing of the gas can be facilitated, and the oxidation effect of the gas can be improved.
Optionally, in this embodiment, an end of the air guide pipe 150 near the splitter plate 130 is configured as an arc, and an extension direction of the arc end is the same as a splitting direction of the splitter plate 130, and both the air guide pipe 150 and the splitter plate 130 are made of silicon carbide materials.
Silicon carbide has the advantages of high strength, high hardness, high temperature resistance, corrosion resistance, good heat shock resistance, large heat conductivity coefficient, good oxidation resistance and the like, and can still keep good strength and hardness at the high temperature of about 1400 ℃.
The gas to be oxidized flows out through different gas guide pipelines 150 in the gas guide pipelines 150, and flows towards different directions when flowing out, so that the gas splitting effect can be improved, the turbulence forming effect is improved, and the mixing degree of the gas is improved.
Alternatively, in the present embodiment, the heating elements 120 are made of silicon carbide, the heating elements 120 are disposed in a plurality of spaced-apart manner, the plurality of heating elements 120 penetrate the oxidation chamber 110, and the extending directions of the plurality of heating elements 120 are perpendicular to the flowing direction of the gas in the oxidation chamber 110.
The heating element 120 made of silicon carbide material can be turned off after the oxidation reaction, so that the silicon carbide can be kept at a higher temperature due to the heat released by the oxidation reaction, and the gas can be fully oxidized when passing through the silicon carbide.
Optionally, in this embodiment, the heat exchange chamber 160 includes a first housing 161 and a first insulating member 162, where the first housing 161 wraps the first insulating member 162, the first insulating member 162 is made of insulating cotton, and the first housing 161 is made of a metal material.
The first insulating member 162 may provide an insulating effect to the heat exchange chamber 160, and the first housing 161 made of a metal material may have high strength and long service life.
Alternatively, in the present embodiment, the oxidation chamber 110 includes a second housing 111 and a second insulating member 112, the second housing 111 wraps the second insulating member 112, the second insulating member 112 is made of insulating cotton, and the second housing 111 is made of a metal material.
The second insulating member 112 may provide an insulating effect to the oxidation chamber 110, and the second housing 111 made of a metal material may have high strength and long service life.
Optionally, in this embodiment, a second gas supply device 182 is further included, where the second gas supply device 182 is connected to the first gas inlet 181, and the second gas supply device 182 is used to pump the gas to be oxidized into the intake chamber 180.
The second gas supply device 182 pumps the gas to be oxidized into the air inlet chamber 180, and can provide a certain positive pressure for the air inlet chamber 180 to promote the flow of the gas to be oxidized into the oxidation chamber 110.
Optionally, in this embodiment, the second gas supply device 182 is a blower.
The fan is a prior art well known to those skilled in the art, and the specific structure and use manner thereof are all the prior art and are not described herein.
The working principle of the thermal oxidation device 100 provided in this embodiment is that, when working, the gas to be oxidized enters into the intake chamber 180 through the first air inlet 181, then enters into the air duct 150, first passes through the blocking chamber 170 in the air duct 150, then passes through the heat exchange chamber 160, then enters into the oxidation chamber 110 for oxidation, the heating element 120 heats, the temperature of the gas in the oxidation chamber 110 is greater than the temperature required by the gas oxidation to be oxidized, at this time, the gas to be oxidized performs oxidation reaction, heat and tail gas are released, the tail gas exchanges heat through the heat exchange chamber 160 and the gas to be oxidized in the air duct 150, thereby heating the gas to be oxidized in the air duct 150, so that the gas to be oxidized in the air duct 150 is preheated, the gas to be oxidized in the air duct 150 can be partially oxidized in the air duct 150, and then flows out of the air duct 150, the gas in the air duct 150 can be rapidly flowed out along with high pressure, the inside the oxidation chamber 110 is fully mixed, the temperature is favorable for increasing the gas to be oxidized, the air chamber 170 can be easily and the air pressure of the air chamber 170 can be reduced, the air pressure of the air chamber 170 can be easily and the air chamber 170 can be reduced, and the air pressure of the air chamber can be easily released from the heat exchange chamber 170 is reduced, and the air chamber 170 can be easily cooled down, and the temperature is reduced, compared with the heat exchange chamber 170 is greatly reduced, and the temperature is easy to be more difficult to be reduced, and the air is easy to be more difficult to be exhausted, and the heat chamber 170 and has the air and has been reduced, and has the temperature and has low temperature and 170 is easy to be reduced. In summary, the thermal oxidation apparatus 100 not only can fully oxidize the gas to be oxidized, but also can prevent the gas to be oxidized from escaping into the external environment.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A thermal oxidizer, comprising:
the air inlet chamber is provided with a first air inlet;
the heat exchange chamber is provided with a first air outlet, and the first air outlet is arranged at one end, close to the air inlet chamber, of the heat exchange chamber;
the oxidation chamber is communicated with one end, far away from the air inlet chamber, of the heat exchange chamber, and a heating piece for heating gas in the oxidation chamber is arranged in the oxidation chamber;
the waste heat bypass port is arranged between the oxidation chamber and the first air outlet, the heat exchange chamber is connected with a second control valve, and the second control valve is used for controlling the flow of the gas in the heat exchange chamber flowing out through the waste heat bypass port;
the separation chamber is arranged between the air inlet chamber and the heat exchange chamber, and is provided with an air pressure supply device which is used for providing positive pressure or negative pressure for the separation chamber;
the air guide pipelines penetrate through the separation chamber and the heat exchange chamber, one ends of the air guide pipelines are located in the air inlet chamber, and the other ends of the air guide pipelines are located in the oxidation chamber;
the inside of the oxidation chamber is provided with a flow dividing plate which is used for dividing the gas flowing out of the plurality of gas guide pipelines towards different directions so as to strengthen the turbulent flow of the gas flowing out of the plurality of gas guide pipelines in the inside of the oxidation chamber; one end of the air guide pipeline, which is close to the flow dividing plate, is arranged in an arc shape, and the extending direction of one end of the arc shape is the same as the flow dividing direction of the flow dividing plate;
the air inlet chamber is divided into a first isolation plate and a second isolation plate, and the first isolation plate and the second isolation plate are respectively provided with a through hole for the air duct to penetrate.
2. A thermal oxidizer as set forth in claim 1 wherein a deflector is disposed within the heat exchange chamber for controlling the flow path of gas from the oxidizer chamber to the first gas outlet to increase the flow path of gas within the heat exchange chamber.
3. The thermal oxidation apparatus according to claim 2, wherein the flow guide member is provided in a plate shape, the flow guide member is provided in a plurality, the flow guide members are provided at intervals along the axial direction of the air guide pipe, vent holes through which the air passes are formed between the flow guide members and the heat exchange chamber, and adjacent vent holes are provided on both sides of the axial direction of the air guide pipe, respectively.
4. A thermal oxidation apparatus according to claim 1, wherein the gas conduit and the diverter plate are each formed from a silicon carbide material.
5. A thermal oxidation apparatus according to claim 1, wherein the heating elements are made of silicon carbide material, the heating elements are arranged in a plurality of spaced-apart manner, a plurality of the heating elements penetrate the oxidation chamber, and the extending directions of the heating elements are perpendicular to the flowing direction of the gas in the oxidation chamber.
6. The thermal oxidation apparatus of claim 1, wherein the heat exchange chamber comprises a first housing and a first insulating member, the first housing is wrapped around the first insulating member, the first insulating member is made of a heat insulating material, and the first housing is made of a metal material.
7. A thermal oxidation apparatus according to claim 1 wherein the oxidation chamber comprises a second housing and a second insulating member, the second housing surrounding the second insulating member, the second insulating member being formed of a heat insulating material and the second housing being formed of a metallic material.
8. A thermal oxidation apparatus according to claim 1, further comprising a second gas supply means connected to the first gas inlet, the second gas supply means being adapted to pump gas to be oxidized into the gas inlet.
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Publication number Priority date Publication date Assignee Title
CN109264718A (en) * 2018-12-10 2019-01-25 上海活性炭厂有限公司 A kind of active carbon carbonizing apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190100075A (en) * 1901-01-01 1901-02-09 Francis Joseph Doyle Improvements relating to Heating Apparatus.
GB469799A (en) * 1934-11-01 1937-08-03 Fritz Eske A method and device for improving combustion of coal of low calorific value
GB543374A (en) * 1940-08-27 1942-02-23 Herbert Metcalfe Improvements in or relating to means for supplying heated air to furnace and the like fires
GB715836A (en) * 1950-12-13 1954-09-22 Smidth & Co As F L Improvements relating to heat-exchange processes for heating or cooling powdered material
BE766618A (en) * 1970-05-04 1971-11-03 Ppg Industries Inc PROCESS FOR PREPARATION OF METAL OXIDES USING ARC HEATING DEVICES IN A GASEOUS ATMOSPHERE
DE3126419A1 (en) * 1981-07-04 1983-01-13 Gebrüder Welger GmbH & Co KG, 3340 Wolfenbüttel Furnace installation for straw or similar material
WO1998030842A1 (en) * 1997-01-06 1998-07-16 Nippon Furnace Kogyo Kaisha, Ltd. Supply air heating device and supply air heating method
CN103851634A (en) * 2012-11-29 2014-06-11 C-Nox有限责任两合公司 Method and Device for Thermal Post-Combustion of Hydrocarbon-Containing Gases

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6576198B2 (en) * 2001-08-14 2003-06-10 Megtec Systems, Inc. Modular VOC entrapment chamber for a two-chamber regenerative oxidizer
CN208186388U (en) * 2018-05-17 2018-12-04 广东环葆嘉节能科技有限公司 Heating power oxidation unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190100075A (en) * 1901-01-01 1901-02-09 Francis Joseph Doyle Improvements relating to Heating Apparatus.
GB469799A (en) * 1934-11-01 1937-08-03 Fritz Eske A method and device for improving combustion of coal of low calorific value
GB543374A (en) * 1940-08-27 1942-02-23 Herbert Metcalfe Improvements in or relating to means for supplying heated air to furnace and the like fires
GB715836A (en) * 1950-12-13 1954-09-22 Smidth & Co As F L Improvements relating to heat-exchange processes for heating or cooling powdered material
BE766618A (en) * 1970-05-04 1971-11-03 Ppg Industries Inc PROCESS FOR PREPARATION OF METAL OXIDES USING ARC HEATING DEVICES IN A GASEOUS ATMOSPHERE
DE3126419A1 (en) * 1981-07-04 1983-01-13 Gebrüder Welger GmbH & Co KG, 3340 Wolfenbüttel Furnace installation for straw or similar material
WO1998030842A1 (en) * 1997-01-06 1998-07-16 Nippon Furnace Kogyo Kaisha, Ltd. Supply air heating device and supply air heating method
CN103851634A (en) * 2012-11-29 2014-06-11 C-Nox有限责任两合公司 Method and Device for Thermal Post-Combustion of Hydrocarbon-Containing Gases

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"ESO+"整体解决方案 推动软包装行业VOCs的有效治理;简甦等;《印刷技术》;全文 *

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