CN214426460U - High-temperature heat exchange desorption device suitable for thermal oxidation furnace-zeolite runner system - Google Patents
High-temperature heat exchange desorption device suitable for thermal oxidation furnace-zeolite runner system Download PDFInfo
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- CN214426460U CN214426460U CN202120627868.XU CN202120627868U CN214426460U CN 214426460 U CN214426460 U CN 214426460U CN 202120627868 U CN202120627868 U CN 202120627868U CN 214426460 U CN214426460 U CN 214426460U
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Abstract
The utility model provides a high-temperature heat exchange desorption device suitable for a thermal oxidation furnace-zeolite runner system, which comprises a heat exchange body and a connecting part communicated with and arranged on a furnace body of the oxidation furnace and between the heat exchange bodies, wherein a flue gas inlet is arranged at one end of the connecting part connected with the furnace body of the oxidation furnace, a first heat insulation part is arranged at the flue gas inlet, a second heat insulation part is arranged at the front end of the heat exchange body connected with the connecting part, and a flue gas outlet is arranged at the rear end of the heat exchange body; through adopting the two-stage mode of insulating heat with the furnace body and keeping apart with the heat exchanger at high temperature flue gas entrance, avoid furnace high temperature radiation, make heat exchanger front end pressure and temperature fluctuation mild simultaneously to with the adjusting valve setting in the lower rear end of heat exchanger temperature, the maintenance cost is low, solved the heat exchanger high temperature that exists among the prior art and easily damaged, the big scheduling technical problem of equipment maintenance cost.
Description
Technical Field
The utility model relates to an exhaust-gas treatment technical field especially relates to a high temperature heat transfer desorption device suitable for heating power oxidation furnace-zeolite runner system.
Background
At present, in the process of treating organic waste gas with large air quantity, the form of concentrating organic waste gas by a rotating wheel and treating the waste gas by high-temperature oxidation of an incinerator is often adopted, and a zeolite rotating wheel concentrating device concentrates the organic waste gas with large air quantity and low concentration into waste gas with high concentration and small air quantity, so that the investment and the operation cost of post-treatment equipment are reduced, and the high-efficiency and low-energy-consumption treatment technology of the organic waste gas is achieved. The heating of the desorbed gas of the runner mostly adopts indirect heat exchange, the heat (about 800 ℃ flue gas) is taken from a hearth, and the heat is mixed with the purified gas with lower temperature and then enters heat exchange equipment for heat exchange.
Chinese utility model patent CN 202010135208.X discloses a waste gas treatment system with zeolite wheel and three-chamber RTO, wherein the heat exchanger includes a first gas inlet, a first gas outlet, a second gas inlet and a second gas outlet; the first air inlet is connected with the first air outlet; the second air inlet is connected with the second air outlet; the first air inlet and the first air outlet are respectively connected with the zeolite rotating wheel; the second gas inlet is connected with the RTO furnace; and the second air outlet is connected with a desorption fan.
However, in the prior art, the heat exchanger cannot avoid the radiation of high-temperature gas, and the heating surface of the heat exchanger is often subjected to high-temperature radiation, high-temperature oxidation and the like, so that the phenomena of thinning, deformation, damage and the like of the wall thickness of the heating surface of the heat exchanger are caused, and the heat exchanger is difficult to maintain a long service life; in addition, a high-temperature valve is needed to adjust the air quantity, the failure rate is high due to frequent action of the high-temperature valve, and the later maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's weak point, provide the high temperature heat transfer desorption device who is applicable to heating power oxidation furnace-zeolite runner system, keep apart furnace body and heat-transfer body through adopting the two-stage thermal-insulated mode in high temperature flue gas entrance, avoid furnace high temperature radiation, make heat-transfer body front end pressure and temperature fluctuation mild simultaneously, and with the adjusting valve setting in the lower rear end of heat-transfer body temperature, the maintenance cost is low, the heat exchanger high temperature who exists among the prior art is easy to damage, the technical problem such as equipment maintenance cost is big has been solved.
In order to achieve the above object, the utility model provides a following technical scheme:
the high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system comprises a heat exchange body and a connecting part which is communicated with and arranged between an oxidation furnace body and the heat exchange body, wherein a flue gas inlet is formed in one end, connected with the oxidation furnace body, of the connecting part, a first heat insulation part is arranged at the flue gas inlet, a second heat insulation part is arranged at the front end, connected with the connecting part, of the heat exchange body, and a flue gas outlet is formed in the rear end of the heat exchange body.
Preferably, the first heat insulating part is provided as a honeycomb heat storage ceramic; the second heat insulation part is made of heat insulation materials.
Preferably, an electric regulating valve is arranged at the rear end of the heat exchange body.
Preferably, the connecting portion comprises a connecting shell and a flue gas pipeline arranged in the connecting shell, and two ends of the flue gas pipeline are connected with the first heat insulation portion and the second heat insulation portion respectively.
Preferably, the heat exchanger body includes heat exchange shell and equipartition set up in heat exchange tube in the heat exchange shell still include with desorption gas entry and desorption gas export that the inside intercommunication of heat exchange shell set up.
Preferably, the desorption gas inlet is arranged at the rear end of the heat exchange body, and the desorption gas outlet is arranged at the front end of the heat exchange body.
Preferably, the inner wall of the heat exchange shell is provided with partition plates in a vertically staggered manner along the length direction of the heat exchange tubes, and the desorbed gas flows in an S shape in the heat exchange shell under the guiding action of the partition plates.
Preferably, the front end of the heat exchange tube is provided with a front expansion joint, and the rear end of the heat exchange tube is provided with a rear expansion joint.
Preferably, the heat exchange shell comprises an outer shell and an inner shell, and an inner shell expansion joint is arranged outside the inner shell; an inner shell supporting part is arranged between the outer shell and the inner shell, and an elastic supporting part is arranged at the bottom of the inner shell.
Preferably, a manhole is further provided on the connection portion.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses a set up the two-stage thermal-insulated structure that comprises first heat-proof portion and second heat-proof portion at high temperature flue gas entrance, keep apart furnace body and heat exchanger, avoid furnace high temperature radiation to lead to the heat exchanger to damage, make the heat exchanger front end pressure and temperature fluctuation mild simultaneously; the regulating valve is arranged at the rear end of the heat exchange body with lower temperature, and because the temperature of the rear end is lower (usually about 250 ℃), the common valve can meet the requirement, and the maintenance cost is low;
(2) the heat exchange device adopts high-temperature resistant materials, and the expansion joints are arranged at the front end and the rear end of the heat exchange tube and on the inner shell, so that the heat exchange device has better thermal fatigue resistance, is favorable for free expansion of the heat exchange tube, and avoids the situations of cracking and damage of the tube and the tube plate in long-term use and the like;
(3) the utility model is designed into a multi-return-stroke countercurrent design, high-temperature flue gas flows in the pipe, desorption gas is in S-shaped countercurrent outside the pipe, and aluminum silicate fiber heat-insulating material (the volume weight is more than or equal to 160Kg/m3) is filled between the pipe shell and the outer wall of the heat exchange device, and the heat exchange efficiency is up to more than 75%;
(4) because when organic waste gas concentration 2000mg/Nm3 was more than, the operation of furnace body was maintained to basic accessible self oxidative decomposition release heat, the utility model discloses can borrow the heat of partial organic waste gas release to come the heat transfer when using under the high concentration condition, fuel consumption is minimum to reach energy-conserving effect.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
fig. 3 is a schematic side view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Examples
As shown in fig. 1-3, the high-temperature heat exchange desorption device suitable for a thermal oxidation furnace-zeolite runner system comprises a heat exchanger 1, and further comprises a connecting part 2 which is communicated with and arranged between an oxidation furnace body and the heat exchanger 1, wherein a flue gas inlet 31 is arranged at one end of the connecting part 2 connected with the oxidation furnace body, a first heat insulation part 4 is arranged at the flue gas inlet 31, a second heat insulation part 5 is arranged at the front end of the heat exchanger 1 connected with the connecting part 2, and a flue gas outlet 32 is arranged at the rear end of the heat exchanger 1.
In this embodiment, the first heat insulation part 4 is arranged at the high-temperature flue gas inlet 31, and the second heat insulation part 5 is further arranged at the front end in the heat exchange body 1, so that the furnace body is isolated from the heat exchange body, and the damage of the heat exchange body caused by high-temperature radiation in the hearth is avoided.
Further, providing the first thermal insulation portion 4 as the honeycomb heat storage ceramic 40 also makes it possible to smooth fluctuations in pressure and temperature at the front end of the heat exchange body.
Preferably, the first heat insulating portion 4 is provided as a honeycomb heat storage ceramic 40; the second insulating portion 5 is made of an insulating material.
Preferably, an electric regulating valve is arranged at the rear end of the heat exchange body 1.
In this embodiment, the regulating valve is disposed at the rear end of the heat exchanger with a low temperature, and since the temperature of the rear end is low (usually about 250 ℃), the general valve can meet the requirement, and further, the maintenance cost is low.
Preferably, the connection part 2 includes a connection housing 21 and a flue gas duct 22 disposed in the connection housing 21, and both ends of the flue gas duct 22 are connected to the first heat insulating part 4 and the second heat insulating part 5, respectively.
Preferably, the heat exchanger 1 includes a heat exchange housing 11, heat exchange tubes 12 uniformly arranged in the heat exchange housing 11, and a desorption gas inlet 33 and a desorption gas outlet 34 communicated with the inside of the heat exchange housing 11.
In this embodiment, a 310S seamless steel tube is selected as the heat exchange tube, two ends of the heat exchange tube are mounted on the tube plate, and the material of the tube plate is 310S; the pipe shell is made of 304S material, the outer wall is made of Q235 steel plate, and reinforcing ribs are arranged; the heat exchange device in the embodiment has high temperature resistance, wherein the common temperature is 750 ℃ and 850 ℃, and the highest temperature can resist 1000 ℃; the equipment resistance is small, the high temperature side is about 200-400Pa, and the low temperature side is about 400-800 Pa.
Preferably, the desorption gas inlet 33 is disposed at a rear end of the heat exchanger body 1, and the desorption gas outlet 34 is disposed at a front end of the heat exchanger body 1.
Preferably, the inner wall of the heat exchange shell 11 is provided with partition plates 13 staggered up and down along the length direction of the heat exchange tubes 12, and the desorption gas flows in an S shape in the heat exchange shell 11 under the guiding action of the partition plates 13.
In the embodiment, the design is a multi-return-stroke countercurrent design, specifically, high-temperature flue gas flows away from the heat exchange tube 12, desorption gas is in an S-shaped countercurrent outside the heat exchange tube 12, and aluminum silicate fiber heat-insulating materials 10 (the volume weight is more than or equal to 160Kg/m3) are filled on the outer walls of the connecting shell 21 and the heat exchange shell 11, so that the heat exchange efficiency is up to more than 75%.
Preferably, the heat exchange tube 12 is provided with a front expansion joint 61 at the front end and a rear expansion joint 62 at the rear end.
Preferably, the heat exchange shell 11 comprises an outer shell 111 and an inner shell 112, and an inner shell expansion joint 63 is arranged outside the inner shell 112; an inner shell supporting part 7 is arranged between the outer shell 111 and the inner shell 112, and an elastic supporting part 8 is arranged at the bottom of the inner shell 112.
In the embodiment, the heat exchange device is made of a material resistant to high temperature of 310s, and the expansion joints are arranged at the front end and the rear end of the heat exchange tube 12 and on the inner shell, so that the heat exchange tube has better thermal fatigue resistance, is favorable for free expansion of the heat exchange tube, and avoids the situations of cracking and damage of the tube and the tube plate in long-term use and the like.
Preferably, a manhole 9 is further provided on the connection part 2.
In this embodiment, the heat exchanger both ends can be equipped with manhole 9, conveniently gets into, easy maintenance, and the maintenance cost is low.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. High temperature heat transfer desorption device suitable for heating power oxidation furnace-zeolite runner system, including heat exchanger (1), its characterized in that still including the intercommunication set up in the oxidation furnace body with connecting portion (2) between heat exchanger (1), on connecting portion (2) with the one end that the oxidation furnace body links to each other is provided with flue gas entry (31), flue gas entry (31) department is provided with first heat-insulating portion (4), heat exchanger (1) with the front end that connecting portion (2) link to each other is provided with second heat-insulating portion (5), the rear end of heat exchanger (1) is provided with exhanst gas outlet (32).
2. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system according to claim 1, wherein the first heat insulation part (4) is provided as a honeycomb heat storage ceramic (40); the second heat insulation part (5) is made of heat insulation materials.
3. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system according to claim 1, wherein the rear end of the heat exchange body (1) is provided with an electric regulating valve.
4. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system according to claim 1, wherein the connecting portion (2) comprises a connecting housing (21) and a flue gas pipeline (22) arranged in the connecting housing (21), and two ends of the flue gas pipeline (22) are respectively connected with the first heat insulation portion (4) and the second heat insulation portion (5).
5. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system according to claim 1, wherein the heat exchange body (1) comprises a heat exchange shell (11) and heat exchange tubes (12) uniformly distributed in the heat exchange shell (11), and further comprises a desorption gas inlet (33) and a desorption gas outlet (34) which are communicated with the inside of the heat exchange shell (11).
6. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system according to claim 5, wherein the desorption gas inlet (33) is arranged at the rear end of the heat-exchange body (1), and the desorption gas outlet (34) is arranged at the front end of the heat-exchange body (1).
7. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system as claimed in claim 5, wherein the inner wall of the heat exchange shell (11) is provided with baffle plates (13) staggered up and down along the length direction of the heat exchange tubes (12), and the desorption gas flows in an S shape in the heat exchange shell (11) under the guiding action of the baffle plates (13).
8. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system as claimed in claim 5, wherein the heat exchange tube (12) is provided with a front expansion joint (61) at the front end and a rear expansion joint (62) at the rear end.
9. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system according to claim 5, wherein the heat exchange shell (11) comprises an outer shell (111) and an inner shell (112), and an inner shell expansion joint (63) is arranged outside the inner shell (112); an inner shell supporting part (7) is arranged between the outer shell (111) and the inner shell (112), and an elastic supporting part (8) is arranged at the bottom of the inner shell (112).
10. The high-temperature heat exchange desorption device suitable for the thermal oxidation furnace-zeolite runner system according to claim 1, wherein a manhole (9) is further arranged on the connecting part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627868.XU CN214426460U (en) | 2021-03-26 | 2021-03-26 | High-temperature heat exchange desorption device suitable for thermal oxidation furnace-zeolite runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627868.XU CN214426460U (en) | 2021-03-26 | 2021-03-26 | High-temperature heat exchange desorption device suitable for thermal oxidation furnace-zeolite runner system |
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| Publication Number | Publication Date |
|---|---|
| CN214426460U true CN214426460U (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120627868.XU Active CN214426460U (en) | 2021-03-26 | 2021-03-26 | High-temperature heat exchange desorption device suitable for thermal oxidation furnace-zeolite runner system |
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| CN (1) | CN214426460U (en) |
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2021
- 2021-03-26 CN CN202120627868.XU patent/CN214426460U/en active Active
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