CN217163773U - Waste gas pyrolysis furnace structure - Google Patents
Waste gas pyrolysis furnace structure Download PDFInfo
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- CN217163773U CN217163773U CN202220624359.6U CN202220624359U CN217163773U CN 217163773 U CN217163773 U CN 217163773U CN 202220624359 U CN202220624359 U CN 202220624359U CN 217163773 U CN217163773 U CN 217163773U
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Abstract
The utility model relates to a waste gas pyrolysis oven structure, include: the device comprises a shell, a gas heat exchanger, a hearth and a heater; gas heat exchanger and furnace all install in the casing, are equipped with shell side waste gas air inlet, shell side waste gas outlet, tube side air inlet and tube side flue gas outlet on gas heat exchanger, tube side flue gas outlet and shell side waste gas air inlet all communicate with the casing is outside, furnace includes that furnace is last to be divided and furnace is divided down, the interval is located gas heat exchanger bottom water flat line top on the furnace, furnace is divided down to be located gas heat exchanger bottom water flat line below, and furnace is divided down to communicate on the interval and the furnace, and furnace is last to divide and shell side waste gas outlet and tube side air inlet intercommunication, the heater is installed at furnace lower interval. The method has the advantages of effectively avoiding the problem that the furnace body structure is damaged due to overhigh local temperature of the furnace chamber, realizing more uniform temperature of the furnace chamber, improving the pyrolysis effect of the organic waste gas, reducing energy consumption and the like.
Description
Technical Field
The utility model relates to a waste gas pyrolysis furnace structure, concretely relates to be applied to furnace body structure of organic waste gas pyrolysis belongs to environmental protection technology and energy-conserving technical field.
Background
At present, the harmless treatment to organic waste gas such as VOCs gas, high temperature pyrolysis is a very effective and thorough treatment method, in the prior art, the heat of high temperature flue gas discharged after the organic waste gas pyrolysis is absorbed and utilized by a gas heat exchanger, which can reduce the supplementary heat energy required for the waste gas pyrolysis, however, when the proportion of combustible components in the waste gas is insufficient, the supplementary heat energy is necessary to maintain sufficient pyrolysis temperature, which also includes the preheating of a cooling furnace, so the waste gas pyrolysis furnace chamber of the waste gas pyrolysis equipment must be provided with a burner or an electric heating tube, and the sufficient pyrolysis temperature of the furnace chamber is maintained by supplementing heat.
The combustor can be started when the temperature of the hearth is insufficient, the gas heat exchanger nearby is easily damaged due to overhigh temperature of the tail flame area of the combustor in the traditional technology, and the temperature of the area below the flame in the hearth is low due to the physical factors of the driving of combustion-supporting air and the rising of hot gas in the hearth, so that when the temperature of the hearth area corresponding to the gas heat exchanger is uneven, the sufficient pyrolysis of waste gas and great negative influence on energy consumption are generated.
Disclosure of Invention
The utility model aims at overcoming prior art not enough and providing a waste gas pyrolysis furnace structure, effectively avoid furnace local high temperature and injure furnace body structure's problem to it is more even to realize furnace temperature, improves organic waste gas's pyrolysis effect and reduces the energy consumption.
In order to achieve the above object, the technical solution of the present invention is realized as follows, which is an exhaust gas pyrolysis furnace structure, and the exhaust gas pyrolysis furnace structure comprises:
the device comprises a shell, a gas heat exchanger, a hearth and a heater; gas heat exchanger and furnace all install in the casing, are equipped with shell side waste gas air inlet, shell side waste gas outlet, tube side air inlet and tube side flue gas outlet on gas heat exchanger, tube side flue gas outlet and shell side waste gas air inlet all communicate with the casing is outside, furnace includes that furnace is last to be divided and furnace is divided down, the interval is located gas heat exchanger bottom water flat line top on the furnace, furnace is divided down to be located gas heat exchanger bottom water flat line below, and furnace is divided down to communicate on the interval and the furnace, and furnace is last to divide and shell side waste gas outlet and tube side air inlet intercommunication, the heater is installed at furnace lower interval.
In the technical scheme, the shell is formed by combining a rectangular steel pipe and a steel plate.
In the technical scheme, a fire-resistant heat-insulating layer is arranged on the inner wall of the shell.
In the technical scheme, the gas heat exchanger is a tube type heat exchanger.
In the technical scheme, the tube type heat exchanger is composed of a ceramic tube or a quartz glass tube.
In the present solution, the heater is a burner.
In the technical scheme, the electric heating type air heater further comprises an air heater, wherein the heater is an electric heating pipe, and the electric heating pipe transmits heat through the air heater.
In the technical scheme, a flow guide inclined plane plate made of high-temperature-resistant ceramic materials is arranged in the lower interval of the hearth.
In the technical scheme, a shielding space is arranged below the shell, and the control device of the burner and the waste gas inlet are positioned in the shielding space.
In the technical scheme, a shielding space is arranged below the shell, and the hot air blower and the waste gas inlet are positioned in the shielding space.
Compared with the prior art, the utility model the advantage do: effectively avoid the local high temperature of furnace and harm the problem of furnace body structure to realize that the furnace temperature is more even, improve the pyrolysis effect of organic waste gas and reduce the energy consumption.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, the terms "upper" and "lower" indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
Example one
As shown in fig. 1, it is an exhaust gas pyrolysis furnace structure comprising: the device comprises a shell 1, a gas heat exchanger 3, a hearth 4 and a heater 6; the gas heat exchanger 3 and the hearth 4 are both installed in the shell 1, the gas heat exchanger 3 is provided with a shell pass waste gas inlet 31, a shell pass waste gas outlet 32, a tube pass gas inlet 33 and a tube pass flue gas outlet 34, the tube pass flue gas outlet 34 and the shell pass waste gas inlet 31 are both communicated with the outside of the shell 1, the hearth 4 comprises an upper hearth region 41 and a lower hearth region 42, the upper hearth region 41 is located above a bottom horizontal line of the gas heat exchanger 3, the lower hearth region 42 is located below the bottom horizontal line of the gas heat exchanger 3, the upper hearth region 41 is communicated with the lower hearth region 42, the upper hearth region 41 is communicated with the shell pass waste gas outlet 32 and the tube pass gas inlet 33, and the heater 6 is installed in the lower hearth region 42.
In the present embodiment, the housing 1 is formed by combining a rectangular steel pipe and a steel plate.
In this embodiment, a refractory and heat-insulating layer 2 is mounted on the inner wall of the casing 1.
In the present embodiment, the gas heat exchanger 3 is a tube heat exchanger formed of ceramic tubes.
In the present embodiment, the heater 6 is a burner.
In the present embodiment, a flow guiding inclined plate 43 made of a high temperature resistant ceramic material is disposed in the lower furnace space 42.
During the use, start the combustor and preheat furnace 4, maintain sufficient temperature in order to ensure to get into the abundant pyrolysis of organic waste gas of interval 41 on the furnace from gas heat exchanger 3, if the combustor sets up interval 41 on the furnace that gas heat exchanger corresponds, its high temperature flame damages gas heat exchanger 3 very easily, the high temperature air current that has the flame production mostly rises again, it is relatively lower to form the regional temperature below the flame, and the furnace is high low from top to bottom unfavorable to organic waste gas pyrolysis, if will consider that the regional sufficient temperature also has in flame below, the regional temperature in flame top just exceedes technical range very easily, cause the energy consumption to increase even ultra-high temperature damage furnace body structure.
The hearth 4 is divided into an upper interval and a lower interval, flame from horizontal jet of a burner is arranged in the lower interval 42 of the hearth, the flame is changed into upward hot air flow to reach the upper interval 41 of the hearth through the flow guide inclined plane plate 43, the gas heat exchanger 3 avoids the direct contact of the high-temperature flame to avoid damage, moreover, the hot air generated by the flame comes from the area below the horizontal plane of the bottom end of the gas heat exchanger 3, the rising high-temperature gas completely passes through the whole upper interval 41 of the hearth from bottom to top, and the gas heat exchanger is guaranteed to intensively flow out of the waste gas in the upper interval 41 of the hearth to obtain sufficient pyrolysis.
Organic waste gas enters an upper hearth zone 41 from a shell side waste gas inlet 31 of the gas heat exchanger 3, the waste gas is pyrolyzed by heat supplemented by rising from a lower hearth zone 42, and the standard flue gas is discharged after heat exchange is finished through a tube side flow channel of the tube heat exchanger 3.
Example two
As shown in fig. 2, it is an exhaust gas pyrolysis furnace structure comprising: the device comprises a shell 1, a gas heat exchanger 3, a hearth 4 and a heater 6; the gas heat exchanger 3 and the hearth 4 are both installed in the shell 1, the gas heat exchanger 3 is provided with a shell pass waste gas inlet 31, a shell pass waste gas outlet 32, a tube pass gas inlet 33 and a tube pass flue gas outlet 34, the tube pass flue gas outlet 34 and the shell pass waste gas inlet 31 are both communicated with the outside of the shell 1, the hearth 4 comprises an upper hearth region 41 and a lower hearth region 42, the upper hearth region 41 is located above a bottom horizontal line of the gas heat exchanger 3, the lower hearth region 42 is located below the bottom horizontal line of the gas heat exchanger 3, the upper hearth region 41 is communicated with the lower hearth region 42, the upper hearth region 41 is communicated with the shell pass waste gas outlet 32 and the tube pass gas inlet 33, and the heater 6 is installed in the lower hearth region 42.
In the present embodiment, the housing 1 is formed by combining a rectangular steel pipe and a steel plate.
In this embodiment, a refractory and heat-insulating layer 2 is mounted on the inner wall of the casing 1.
In the present embodiment, the gas heat exchanger 3 is a tube heat exchanger formed of a quartz glass tube.
In the present embodiment, the heater 6 is a burner.
In the present embodiment, a flow guiding inclined plate 43 made of a high temperature resistant ceramic material is disposed in the lower furnace space 42.
In the present embodiment, a flow guiding inclined plate 43 made of a high temperature resistant ceramic material is disposed in the lower furnace space 42.
In this embodiment, a housing space 9 is provided below the casing 1, and the control device 61 of the burner and the exhaust gas inlet 7 are located in the housing space 9.
Unlike the first embodiment, the control device 61 and the exhaust gas inlet 7 of the burner of the second embodiment are disposed in the enclosure space 9 below the furnace body. Thus, devices related to the control of the burner, such as a combustion fan, various valves and the like, and devices related to the waste gas inlet, such as a fan, an air valve and the like, can be arranged in the enclosed space 9, so that the furnace body has a more compact and more attractive integrated structure.
EXAMPLE III
As shown in fig. 3, it is an exhaust gas pyrolysis furnace structure comprising: the device comprises a shell 1, a gas heat exchanger 3, a hearth 4 and a heater 6; the gas heat exchanger 3 and the hearth 4 are both installed in the shell 1, the gas heat exchanger 3 is provided with a shell pass waste gas inlet 31, a shell pass waste gas outlet 32, a tube pass gas inlet 33 and a tube pass flue gas outlet 34, the tube pass flue gas outlet 34 and the shell pass waste gas inlet 31 are both communicated with the outside of the shell 1, the hearth 4 comprises an upper hearth region 41 and a lower hearth region 42, the upper hearth region 41 is located above a bottom horizontal line of the gas heat exchanger 3, the lower hearth region 42 is located below the bottom horizontal line of the gas heat exchanger 3, the upper hearth region 41 is communicated with the lower hearth region 42, the upper hearth region 41 is communicated with the shell pass waste gas outlet 32 and the tube pass gas inlet 33, and the heater 6 is installed in the lower hearth region 42.
In the present embodiment, the housing 1 is formed by combining a rectangular steel pipe and a steel plate.
In this embodiment, a refractory and heat-insulating layer 2 is mounted on the inner wall of the casing 1.
In the present embodiment, the gas heat exchanger 3 is a tube heat exchanger formed of a quartz glass tube.
In this embodiment, a heat blower 62 is further included, and the heater 6 is an electric heating tube which transfers heat through the heat blower 62.
In the present embodiment, a flow guiding inclined plate 43 made of a high temperature resistant ceramic material is disposed in the lower furnace space 42.
In this embodiment, a shielding space 9 is provided below the casing 1, and the hot air blower 62 and the exhaust gas inlet 7 are provided in the shielding space 9 below the furnace body.
Unlike the first embodiment, the heater 6 and the exhaust gas inlet 7 of the third embodiment are located in the enclosed space 9, so that the furnace body has a more compact and beautiful integrated structure.
The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention.
Claims (9)
1. An exhaust gas pyrolysis furnace structure characterized by comprising:
the device comprises a shell (1), a gas heat exchanger (3), a hearth (4) and a heater (6); the gas heat exchanger (3) and the hearth (4) are both arranged in the shell (1), a shell pass waste gas inlet (31), a shell pass waste gas outlet (32), a tube pass gas inlet (33) and a tube pass flue gas outlet (34) are arranged on the gas heat exchanger (3), the tube side flue gas outlet (34) and the shell side waste gas inlet (31) are both communicated with the outside of the shell (1), the hearth (4) comprises a hearth upper area (41) and a hearth lower area (42), the upper hearth region (41) is positioned above the horizontal line at the bottom end of the gas heat exchanger (3), the hearth lower section (42) is positioned below the horizontal line at the bottom end of the gas heat exchanger (3), and the hearth upper section (41) is communicated with the hearth lower section (42), the hearth upper section (41) is communicated with the shell pass waste gas outlet (32) and the tube pass gas inlet (33), and the heater (6) is arranged in the hearth lower section (42).
2. An exhaust gas pyrolysis furnace structure according to claim 1, characterized in that the housing (1) is formed by combining a rectangular steel pipe and a steel plate.
3. An exhaust gas pyrolysis furnace construction according to claim 1 characterized in that a refractory insulating layer (2) is mounted on the inner wall of the housing (1).
4. An exhaust gas pyrolysis furnace construction according to claim 1 characterized in that the gas heat exchanger (3) is a tube type heat exchanger constructed of a ceramic tube or a quartz glass tube.
5. An off-gas pyrolysis furnace construction according to claim 1, characterized in that the heater (6) is a burner.
6. The exhaust gas pyrolysis furnace structure of claim 1, further comprising a heat blower (62), wherein the heater (6) is an electric heating tube, and the electric heating tube transmits heat through the heat blower (62).
7. An exhaust gas pyrolysis furnace construction according to claim 1 characterized in that a flow guiding inclined panel (43) of high temperature resistant ceramic material is provided in the lower hearth zone (42).
8. An exhaust gas pyrolysis furnace construction according to claim 5 characterized in that a containment space (9) is provided below the housing (1), and the burner control means (61) and the exhaust gas inlet (7) are located in the containment space (9).
9. An exhaust gas pyrolysis furnace construction according to claim 6 characterized in that a containment space (9) is provided below the housing (1), the hot air blower (62) and the exhaust gas inlet (7) being located in the containment space (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220624359.6U CN217163773U (en) | 2022-03-22 | 2022-03-22 | Waste gas pyrolysis furnace structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220624359.6U CN217163773U (en) | 2022-03-22 | 2022-03-22 | Waste gas pyrolysis furnace structure |
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| Publication Number | Publication Date |
|---|---|
| CN217163773U true CN217163773U (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220624359.6U Active CN217163773U (en) | 2022-03-22 | 2022-03-22 | Waste gas pyrolysis furnace structure |
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| CN (1) | CN217163773U (en) |
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- 2022-03-22 CN CN202220624359.6U patent/CN217163773U/en active Active
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