CN219389776U - Split catalytic combustion furnace - Google Patents

Abstract

The application discloses a split catalytic combustion furnace, which comprises a heat preservation furnace body; the heat preservation furnace is characterized in that an exhaust gas inlet is fixed on the upper portion of one side of the heat preservation furnace body, an exhaust gas outlet is fixed in the middle of one side, close to the exhaust gas inlet, of the top end of the heat preservation furnace body, a heat exchanger is arranged in the heat preservation furnace body at the center straight line junction of the exhaust gas inlet and the exhaust gas outlet, a partition plate is fixed in the heat preservation furnace body at the bottom end of the heat exchanger, and a combustion flue is formed between the partition plate and the inside of the heat preservation furnace body. The split type catalytic combustion furnace is adopted, the split type structure of the combustion chamber and the catalytic layer is realized under the conditions of keeping the original treatment efficiency, the heat exchange efficiency and the reaction principle, the service life of the catalyst is prolonged, the combustion chamber and the catalytic layer are ensured to keep a proper distance through the adjustment of the internal structure, the original treatment efficiency and the heat recovery efficiency are kept, the structural optimization design is carried out, and the problem that the catalyst is easy to deteriorate due to the fact that the distance between a heater and the catalyst of the catalytic layer in the existing catalytic combustion furnace is relatively short is solved.

Description

Split catalytic combustion furnace

Technical Field

The application relates to a combustion furnace, in particular to a split catalytic combustion furnace.

Background

Patent number 201821759888.7 discloses a catalytic combustion furnace with efficient heat exchange. The heat exchanger of the catalytic combustion furnace comprises a heat exchange component, wherein the heat exchange component comprises an exhaust gas chamber, a hot gas chamber and a panel, the exhaust gas chamber and the hot gas chamber comprise a bottom plate, a partition plate and a side wall, the partition plate and the side wall are same in width and are positioned on the same side of the bottom plate, one end of the partition plate is connected with the side wall, the other end of the partition plate is kept at a certain distance from the side wall, the catalytic combustion furnace can achieve the treatment efficiency of VOCs (volatile organic compounds) reaching more than 95% at a lower temperature (300-500 ℃) under the action of a catalyst, and the catalytic combustion furnace is completely reacted to generate carbon dioxide and water, so that the catalytic combustion furnace is one of high-efficiency energy-saving waste gas treatment technologies.

At present, a heater of a combustion chamber of a conventional catalytic combustion furnace and a catalyst of a catalytic layer are integrated in the vertical direction, the contact distance is too short, and the heat effect during heating can increase crystal grains of active components in the catalyst, so that the specific surface area is reduced, or the catalyst is deteriorated, the reaction process is too short, carbon deposition is generated on the surface of the catalyst or generated by dust reaction, the surface of the catalyst is covered, and the service life of the catalyst is influenced. Therefore, a split catalytic combustion furnace is proposed for the above-mentioned problems.

Disclosure of Invention

In this embodiment, a split catalytic combustion furnace is provided to solve the problem that in the catalytic combustion furnace in the prior art, the catalyst of the heater and the catalytic layer is relatively close to cause deterioration of the catalyst.

According to one aspect of the present application, there is provided a split catalytic combustion furnace comprising a heat-retaining furnace body; the heat preservation furnace is characterized in that an exhaust gas inlet is fixed on the upper portion of one side of the heat preservation furnace body, an exhaust gas outlet is fixed in the middle of one side, close to the exhaust gas inlet, of the top end of the heat preservation furnace body, a heat exchanger is arranged in the heat preservation furnace body at the center of the straight line junction of the exhaust gas inlet and the center of the exhaust gas outlet, a partition plate is fixed in the heat preservation furnace body at the bottom end of the heat exchanger, a combustion flue is formed in the partition plate and the heat preservation furnace body, a heater is fixed between the outer side of the partition plate and the heat preservation furnace body, a catalytic layer is arranged in the heat preservation furnace body at the inner side of the partition plate, an upper interface and a lower interface are respectively fixed at the upper end and the lower end of the heat exchanger, and the heat preservation furnace body at the bottom end of the exhaust gas outlet are fixed in the upper interface.

Further, a plurality of separation guide plates are fixed in the heat exchanger at equal intervals, a plurality of cold flues are arranged in the separation guide plates, a plurality of hot flues are formed in the outer sides of the separation guide plates and the waste gas outlet, and the cold flues are all in through connection with the waste gas inlet.

Further, the partition plate is arranged in an inverted L shape, the width of the partition plate is equal to the width of the inside of the heat preservation furnace body, and the bottom end of the partition plate is arranged in an arc shape.

Further, the heater and the catalytic layer are arranged on two sides of the lower part of the partition plate, the partition plate and the inside of the heat preservation furnace body form a G-shaped combustion flue, and the height of the partition plate is larger than that of the heater and the catalytic layer.

Further, the upper interface is in through connection with the inside of the waste gas outlet, the bottom end of the lower interface is fixed at the top end of the partition plate, and the lower interface is in through connection with the inside of the combustion flue above the catalytic layer.

Further, each separation guide plate is rectangular, openings matched with the cold flue are formed in the left side and the right side of the heat exchanger, one side of the opening is connected with the waste gas inlet, and the other side of the opening is connected with the inside of the combustion flue.

Through the above-mentioned embodiment of this application, adopted split type catalytic combustion stove, under the circumstances of keeping former treatment effeciency, heat exchange efficiency and reaction principle, realize that combustion chamber and catalysis layer carry out split type structure, increase catalyst life, through the internal structure adjustment, ensure that combustion chamber and catalysis layer keep suitable distance, remain former treatment effeciency and heat recovery efficiency, carry out the structural optimization design, the catalyst distance that has solved in the current catalytic combustion stove heater and catalysis layer is nearer and is aroused the problem that the catalyst is rotten easily.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional elevation view of a structure of an embodiment of the present application;

FIG. 3 is a schematic side view in cross-section of a partial structure of an embodiment of the present application.

In the figure: 1. a heat-preserving furnace body; 2. an exhaust gas inlet; 3. an exhaust gas outlet; 4. a heat exchanger; 5. a partition plate; 6. a combustion flue; 7. a heater; 8. a catalytic layer; 9. an upper interface; 10. a lower interface; 11. a partition guide plate; 12. a hot flue; 13. and (5) a cold flue.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1-3, a split catalytic combustion furnace comprises a heat preservation furnace body 1, so that the heat dissipation coefficient of the inner wall surface of the catalytic combustion furnace is ensured to be low, and the overall energy consumption loss is reduced; an exhaust gas inlet 2 is fixed at the upper part of one side of the heat preservation furnace body 1, an exhaust gas outlet 3 is fixed at the middle part of one side, close to the exhaust gas inlet 2, of the top end of the heat preservation furnace body 1, a heat exchanger 4 is arranged in the heat preservation furnace body 1 at the center linear junction of the exhaust gas inlet 2 and the exhaust gas outlet 3 and used for recycling waste heat of the exhaust gas outlet, high-temperature gas in a combustion chamber is prevented from being directly discharged, heat loss is avoided, a partition plate 5 is fixed in the heat preservation furnace body 1 at the bottom end of the heat exchanger 4, a combustion flue 6 is formed in the partition plate 5 and the heat preservation furnace body 1, a heater 7 is fixed between the outer side of the partition plate 5 and the heat preservation furnace body 1, a catalytic layer 8 is arranged in the heat preservation furnace body 1 at the inner side of the partition plate 5, an upper interface 9 and a lower interface 10 are respectively fixed at the upper end and the lower end of the heat exchanger 4, and the heat preservation furnace body 1 at the bottom end of the exhaust gas outlet 3 are fixed in the upper interface 9

A plurality of separation guide plates 11 are fixed in the heat exchanger 4 at equal intervals, a plurality of cold flues 13 are arranged in the separation guide plates 11, a plurality of hot flues 12 are formed in the outer sides of the separation guide plates 11 and the waste gas outlet 3, and the cold flues 13 are communicated with the waste gas inlet 2, so that heat exchange is facilitated; the spacing plate 5 is arranged in an inverted L shape, the width of the spacing plate 5 is equal to the width of the inside of the heat preservation furnace body 1, and the bottom end of the spacing plate 5 is arranged in an arc shape, so that waste gas can flow conveniently; the heater 7 and the catalytic layer 8 are positioned at two sides of the lower part of the partition plate 5, the heater 7 is used for heating in the catalytic combustion furnace to ensure that the waste gas reaches the reaction temperature, the partition plate 5 and the inside of the heat preservation furnace body 1 form a G-shaped combustion flue 6 for heating the gas transfer flue, the direct contact of the heater 7 and the catalytic layer 8 is avoided, the service life of the catalyst is prolonged, the height of the partition plate 5 is greater than the heights of the heater 7 and the catalytic layer 8, the catalytic layer 8 is filled with the catalyst, the catalyst is used for reducing the gas reaction activation energy, the reaction is ensured to be complete at the lower temperature of 300-500 ℃, and the water and the carbon dioxide are produced; the upper interface 9 is in through connection with the interior of the waste gas outlet 3, the bottom end of the lower interface 10 is fixed at the top end of the partition plate 5, and the lower interface 10 is in through connection with the interior of the combustion flue 6 above the catalytic layer 8, so that waste gas can flow conveniently; each partition guide plate 11 is rectangular, openings matched with the cold flue 13 are formed in the left side and the right side of the heat exchanger 4, one side of the opening is connected with the waste gas inlet 2, and the other side of the opening is connected with the inside of the combustion flue 6.

When the catalytic combustion furnace is used, waste gas enters the heat preservation furnace body 1 through the waste gas inlet 2, heat exchange is carried out on the waste gas high-temperature gas under the action of the heat exchanger 4, waste heat is recovered, preliminary preheating is carried out, then the waste gas enters the heating zone under the guiding of the combustion flue 6, the temperature is increased to the reaction temperature (300-500 ℃) under the action of the heater 7, the waste gas is transmitted in the combustion flue 6, the catalytic layer 8 is reached, the activation energy of the reaction gas is reduced under the action of the catalyst, the reaction temperature (300-500 ℃) is ensured to be completely reacted, the gas after reaching the treatment standard enters the heat exchanger 4 through the lower interface 10 and contacts with the waste gas flowing through the cold flue 13, waste heat is transmitted to the waste gas just entering under the action of the separation guide plate 11, heat exchange is carried out, then the gas is discharged, and all electrical components appearing in the application are externally connected with a power supply and a control switch.

The related circuits, electronic components and modules are all in the prior art, and can be completely implemented by those skilled in the art, and needless to say, the protection of the present application does not relate to improvements of software and methods.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (6)

1. A split catalytic combustion furnace is characterized in that: comprises a heat-preserving furnace body (1); the utility model discloses a heat preservation furnace, including heat preservation furnace body (1), heat preservation furnace body (1) one side upper portion is fixed with waste gas import (2), heat preservation furnace body (1) inside be provided with heat exchanger (4) in waste gas import (2) and waste gas export (3) center straight line juncture, heat preservation furnace body (1) inside be fixed with division board (5) in heat exchanger (4) bottom, and division board (5) and heat preservation furnace body (1) inside form combustion flue (6), be fixed with heater (7) between division board (5) outside and heat preservation furnace body (1), heat preservation furnace body (1) inside of division board (5) is provided with catalytic layer (8), heat exchanger (4) upper and lower extreme are fixed with interface (9) and lower interface (10) respectively, upper interface (9) bottom and heat preservation furnace body (1) inside of waste gas export (3) bottom are fixed.

2. The split catalytic burner of claim 1, wherein: a plurality of separation guide plates (11) are fixed in the heat exchanger (4) at equal intervals, a plurality of cold flues (13) are formed in the separation guide plates (11), a plurality of hot flues (12) are formed in the outer sides of the separation guide plates (11) and the waste gas outlet (3), and the cold flues (13) are all in through connection with the waste gas inlet (2).

3. The split catalytic burner of claim 1, wherein: the space board (5) is arranged in an inverted L shape, the width of the space board (5) is equal to the width of the inside of the heat preservation furnace body (1), and the bottom end of the space board (5) is arranged in an arc shape.

4. The split catalytic burner of claim 1, wherein: the heater (7) and the catalytic layer (8) are positioned on two sides of the lower part of the partition plate (5), the partition plate (5) and the heat preservation furnace body (1) form a G-shaped combustion flue (6), and the height of the partition plate (5) is greater than that of the heater (7) and the catalytic layer (8).

5. The split catalytic burner of claim 1, wherein: the upper interface (9) is in internal through connection with the waste gas outlet (3), the bottom end of the lower interface (10) is fixed at the top end of the partition plate (5), and the lower interface (10) is in internal through connection with the combustion flue (6) above the catalytic layer (8).

6. The split catalytic burner of claim 2, wherein: each separation guide plate (11) is rectangular, openings matched with the cold flue (13) are formed in the left side and the right side of the heat exchanger (4), one side of the opening is connected with the waste gas inlet (2), and the other side of the opening is connected with the inside of the combustion flue (6).