CN215524140U - Energy-saving and environment-friendly heating device based on natural gas catalytic combustion in tunnel furnace - Google Patents

Energy-saving and environment-friendly heating device based on natural gas catalytic combustion in tunnel furnace Download PDF

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CN215524140U
CN215524140U CN202122116048.7U CN202122116048U CN215524140U CN 215524140 U CN215524140 U CN 215524140U CN 202122116048 U CN202122116048 U CN 202122116048U CN 215524140 U CN215524140 U CN 215524140U
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pipe
heating
chamber
tunnel furnace
natural gas
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陈尧春
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Shaoxing Tianzhe Energy Co ltd
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Shaoxing Tianzhe Energy Co ltd
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    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • 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
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking

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Abstract

An energy-saving and environment-friendly heating device based on natural gas catalytic combustion in a tunnel furnace comprises the tunnel furnace, wherein a high-temperature area is arranged at the front part of the tunnel furnace, a low-temperature area is arranged at the rear part of the tunnel furnace, a gas catalytic heating mechanism is arranged in the high-temperature area, a heat dissipation mechanism is inserted in the low-temperature area, the gas catalytic heating mechanism comprises an air inlet chamber and an air outlet chamber which are distributed at the front end and the rear end of the high-temperature area, a plurality of heating pipes are arranged between the air inlet chamber and the air outlet chamber, two ends of the heating pipes are respectively inserted and fixed on the air inlet chamber and the air outlet chamber, a combustion catalyst coating is coated and fixed on the inner walls of the heating pipes, and an electronic igniter is inserted and arranged in pipe orifices of the heating pipes positioned at one end of the air inlet chamber; the heat dissipation mechanism comprises a gas guide chamber and an exhaust chamber, a plurality of heat dissipation pipes are arranged between the gas guide chamber and the exhaust chamber, and two ends of each heat dissipation pipe are respectively inserted and fixed on the gas guide chamber and the exhaust chamber. The natural gas catalytic heating device meets the temperature of two heating areas of the tunnel furnace by heating in a natural gas catalytic mode, and is safe, efficient, energy-saving and environment-friendly to use.

Description

Energy-saving and environment-friendly heating device based on natural gas catalytic combustion in tunnel furnace
The technical field is as follows:
the utility model relates to the technical field of tunnel furnaces, in particular to an energy-saving and environment-friendly heating device based on natural gas catalytic combustion in a tunnel furnace.
Background art:
the tunnel furnace is a tunnel type mechanical device for baking food through heat conduction, convection and radiation. The existing tunnel furnace is generally provided with two heating zones, one is a high-temperature zone, and the temperature is between 1600 ℃ and 1800 ℃; the other is a low-temperature region, the temperature is between 280 ℃ and 300 ℃, the low-temperature region is positioned at the rear side of the high-temperature region, and both the high-temperature region and the low-temperature region are heated and insulated by an electric heating mode, but the electric heating mode has higher energy consumption and high production cost, so that the natural gas combustion heating mode is adopted to replace electric energy heating, the cost can be greatly saved, but the natural gas combustion has higher potential safety hazard, and the exhausted gas after combustion easily causes environmental pollution, so a safe, efficient, energy-saving and environment-friendly natural gas heating device is needed.
The utility model has the following contents:
the utility model aims to overcome the defects of the prior art, and provides an energy-saving and environment-friendly heating device based on natural gas catalytic combustion in a tunnel furnace, which utilizes a natural gas catalytic mode to heat to meet the temperature of two heating areas of the tunnel furnace, and is safe, efficient, energy-saving and environment-friendly to use.
The utility model provides an energy-concerving and environment-protective heating device based on natural gas catalytic combustion in tunnel furnace, includes tunnel furnace, and tunnel furnace's front portion is equipped with high-temperature region, and tunnel furnace's rear portion is equipped with low-temperature region, its characterized in that: a gas catalytic heating mechanism is arranged in the high-temperature area, a heat dissipation mechanism is inserted in the low-temperature area, the gas catalytic heating mechanism comprises an air inlet chamber and an air outlet chamber which are distributed at the front end and the rear end of the high-temperature area, a plurality of heating pipes are arranged between the air inlet chamber and the air outlet chamber, the two ends of each heating pipe are respectively inserted and fixed on the air inlet chamber and the air outlet chamber, a combustion catalyst coating is coated and fixed on the inner wall of each heating pipe, and an electronic igniter is inserted and arranged in the pipe orifice of one end, located at the air inlet chamber, of each heating pipe; the heat dissipation mechanism comprises a gas guide chamber and an exhaust chamber, a plurality of heat dissipation pipes are arranged between the gas guide chamber and the exhaust chamber, and two ends of each heat dissipation pipe are respectively inserted and fixed on the gas guide chamber and the exhaust chamber;
an air duct is arranged between the gas catalytic heating mechanism and the heat dissipation mechanism, a three-way regulating valve is fixedly connected on the air duct, and an air return pipe is fixedly connected on the other pipe orifice of the three-way regulating valve; a preheating zone is arranged on the front side of the high-temperature zone in the tunnel furnace, a heat exchanger is arranged in the preheating zone, and the tail end of the air return pipe is fixedly connected to the heat exchanger; the gas catalytic heating mechanism is characterized in that an oxygen inlet pipe and a natural gas conveying pipe are fixedly connected to an air inlet chamber of the gas catalytic heating mechanism, and a flow regulating valve is fixedly connected to the natural gas conveying pipe.
Preferably, a plurality of shunt tubes are formed on the natural gas conveying pipe, and the shunt tubes are inserted and fixed on the air inlet chamber and are opposite to the pipe orifices of the heating pipes; the oxygen inlet pipe is fixedly connected with a high-pressure air inlet fan.
Preferably, the heating pipe in the gas catalytic heating mechanism is in a straight pipe shape, and the radiating pipe in the radiating mechanism is in a continuous S shape.
Preferably, the front end and the rear end of the air duct are respectively provided with a plurality of air outlet pipes and air inlet pipes, and the air outlet pipes are respectively inserted and fixed in the air outlet chamber and are respectively opposite to the pipe orifices of the heating pipe and the radiating pipe.
Preferably, the number of the air guide pipes is equal to the number of the heating pipes, and the number of the cooling pipes is equal to the number of the air guide pipes.
Preferably, the gas catalytic heating mechanism and the heat dissipation mechanism are both positioned at the upper part of the tunnel furnace, and the natural gas conveying pipe is positioned at the outer side of the tunnel furnace and is distributed above the preheating zone c.
The utility model has the beneficial effects that:
the temperature of a high-temperature area is ensured by utilizing natural gas catalytic heating, and the heat in tail gas discharged after the natural gas catalysis is utilized to solve the problem of a low-temperature area, so that the device is safe to use, high-efficiency, energy-saving and environment-friendly; and the redundant heat in the tail gas can be transferred to the high-temperature area and can be used for preheating, so that the energy consumption of the high-temperature area can be further saved.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
In the figure: 1. a tunnel furnace; 2. a gas catalytic heating mechanism; 21. an air intake chamber; 22. an air outlet chamber; 23. heating a tube; 24. a combustion catalyst coating; 25. an electronic igniter; 3. a heat dissipation mechanism; 31. a gas conducting chamber; 32. an exhaust chamber; 33. a heat dissipation mechanism; 4. a natural gas delivery pipe; 41. a shunt tube; 5. an air duct; 51. an air outlet pipe; 52. an air guide inlet pipe; 6. a three-way regulating valve; 7. a flow regulating valve; 8. an air return pipe; 9. a heat exchanger.
The specific implementation mode is as follows:
example (b): as shown in fig. 1 and 2, an energy-saving and environment-friendly heating device based on natural gas catalytic combustion in a tunnel furnace comprises a tunnel furnace 1, wherein a high-temperature area a is arranged at the front part of the tunnel furnace 1, a low-temperature area b is arranged at the rear part of the tunnel furnace 1, a gas catalytic heating mechanism 2 is arranged in the high-temperature area a, a heat dissipation mechanism 3 is inserted in the low-temperature area b, the gas catalytic heating mechanism 2 comprises an air inlet chamber 21 and an air outlet chamber 22 which are distributed at the front end and the rear end of the high-temperature area a, a plurality of heating pipes 23 are arranged between the air inlet chamber 21 and the air outlet chamber 22, two ends of each heating pipe 23 are respectively inserted and fixed on the air inlet chamber 21 and the air outlet chamber 22, a combustion catalyst coating 24 is coated and fixed on the inner wall of each heating pipe 23, and an electronic igniter 25 is inserted and arranged in a pipe orifice of one end of each heating pipe 23, which is located at the air inlet chamber 21; the heat dissipation mechanism 3 comprises an air guide chamber 31 and an exhaust chamber 32, a plurality of heat dissipation pipes 33 are arranged between the air guide chamber 31 and the exhaust chamber 32, and two ends of each heat dissipation pipe 33 are respectively inserted and fixed on the air guide chamber 31 and the exhaust chamber 32;
an air duct 5 is arranged between the gas catalytic heating mechanism 2 and the heat dissipation mechanism 3, a three-way regulating valve 6 is fixedly connected on the air duct 5, and an air return pipe 8 is fixedly connected on the other pipe orifice of the three-way regulating valve 6; a preheating zone c is arranged on the front side of the high-temperature zone a in the tunnel furnace 1, a heat exchanger 9 is arranged in the preheating zone c, and the tail end of the air return pipe 8 is fixedly connected to the heat exchanger 9; an oxygen inlet pipe and a natural gas conveying pipe 4 are fixedly connected to an air inlet chamber 21 of the gas catalytic heating mechanism 2, and a flow regulating valve 7 is fixedly connected to the natural gas conveying pipe 4.
Preferably, a plurality of shunt tubes 41 are formed on the natural gas conveying pipe 4, and the shunt tubes 41 are inserted and fixed on the air inlet chamber 21 and are opposite to the pipe orifices of the heating pipes 23; the oxygen inlet pipe is fixedly connected with a high-pressure air inlet fan.
Preferably, the heating pipe 23 in the gas catalytic heating mechanism 2 is a straight pipe type, and the heat dissipation pipe 33 in the heat dissipation mechanism 3 is a continuous S-type.
Preferably, a plurality of air guide pipes 51 and air guide inlet pipes 52 are respectively formed at the front end and the rear end of the air duct 5, and the air guide pipes 51 are respectively inserted and fixed in the air outlet chamber 22 and the air guide chamber 31 and are respectively opposite to the pipe orifices of the heating pipe 23 and the radiating pipe 33.
Preferably, the number of the air guide tubes 51 is equal to the number of the heating tubes 23, and the number of the radiating tubes 33 is equal to the number of the air guide tubes 52.
Preferably, the gas catalytic heating mechanism 2 and the heat radiating mechanism 3 are both positioned at the upper part of the tunnel furnace 1, and the natural gas conveying pipe 4 is positioned at the outer side of the tunnel furnace 1 and is distributed above the preheating zone c.
Preferably, a carbon fiber heating device for auxiliary heating is installed in the low-temperature region b of the tunnel furnace 1.
The working principle is as follows: the utility model relates to an energy-saving and environment-friendly heating device based on natural gas catalytic combustion in a tunnel furnace, which mainly utilizes a heating structure of natural gas catalytic combustion to realize heating in two temperature areas in the tunnel furnace, utilizes natural gas to catalyze and combust in a heating pipe 23 in a high-temperature area a of the tunnel furnace, and regulates the flow of a natural gas device through a flow regulating valve 7 to ensure the heating temperature in the high-temperature area a; after the natural gas is catalytically combusted, the discharged tail gas has a better temperature which is usually higher than 300 ℃, so the tail gas can be conveyed into the radiating pipe 33 of the low-temperature zone, and the temperature of the low-temperature zone is heated by the heat of the tail gas;
because the temperature of the tail gas is usually higher than that of the low-temperature zone, the excess heat of the tail gas can be utilized as long as the heating temperature of the low-temperature zone is ensured; therefore, the tail gas channel after the catalysis of the natural gas is provided with the three-way regulating valve 6, and partial tail gas is conveyed to the preheating zone c at the front side of the high temperature zone a through the three-way regulating valve 6 and the gas return pipe 8, so that the tail gas can be used for preheating.
The examples are intended to illustrate the utility model, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the utility model as set forth in the appended claims.

Claims (6)

1. The utility model provides an energy-concerving and environment-protective heating device based on natural gas catalytic combustion in tunnel furnace, includes tunnel furnace (1), and the front portion of tunnel furnace (1) is equipped with high-temperature region (a), and the rear portion of tunnel furnace (1) is equipped with low-temperature region (b), its characterized in that: a gas catalytic heating mechanism (2) is arranged in the high-temperature area (a), a heat dissipation mechanism (3) is inserted in the low-temperature area (b), the gas catalytic heating mechanism (2) comprises an air inlet chamber (21) and an air outlet chamber (22) which are distributed at the front end and the rear end of the high-temperature area (a), a plurality of heating pipes (23) are arranged between the air inlet chamber (21) and the air outlet chamber (22), two ends of each heating pipe (23) are respectively inserted and fixed on the air inlet chamber (21) and the air outlet chamber (22), a combustion catalyst coating (24) is coated and fixed on the inner wall of each heating pipe (23), and an electronic igniter (25) is inserted in a pipe orifice of one end, located at the air inlet chamber (21), of each heating pipe (23); the heat dissipation mechanism (3) comprises a gas guide chamber (31) and an exhaust chamber (32), a plurality of heat dissipation pipes (33) are arranged between the gas guide chamber (31) and the exhaust chamber (32), and two ends of each heat dissipation pipe (33) are respectively inserted and fixed on the gas guide chamber (31) and the exhaust chamber (32);
an air duct (5) is arranged between the gas catalytic heating mechanism (2) and the heat dissipation mechanism (3), a three-way regulating valve (6) is fixedly connected on the air duct (5), and an air return pipe (8) is fixedly connected on the other pipe orifice of the three-way regulating valve (6); a preheating zone (c) is arranged on the front side of a high-temperature zone (a) in the tunnel furnace (1), a heat exchanger (9) is arranged in the preheating zone (c), and the tail end of an air return pipe (8) is fixedly connected to the heat exchanger (9); an oxygen inlet pipe and a natural gas conveying pipe (4) are fixedly connected to an air inlet chamber (21) of the gas catalytic heating mechanism (2), and a flow regulating valve (7) is fixedly connected to the natural gas conveying pipe (4).
2. The energy-saving and environment-friendly heating device based on natural gas catalytic combustion in the tunnel furnace as claimed in claim 1, is characterized in that: a plurality of shunt tubes (41) are formed on the natural gas conveying pipe (4), and the shunt tubes (41) are inserted and fixed on the air inlet chamber (21) and are opposite to the pipe openings of the heating pipes (23); the oxygen inlet pipe is fixedly connected with a high-pressure air inlet fan.
3. The energy-saving and environment-friendly heating device based on natural gas catalytic combustion in the tunnel furnace as claimed in claim 1, is characterized in that: the heating pipe (23) in the gas catalytic heating mechanism (2) is in a straight pipe type, and the radiating pipe (33) in the radiating mechanism (3) is in a continuous S type.
4. The energy-saving and environment-friendly heating device based on natural gas catalytic combustion in the tunnel furnace as claimed in claim 1, is characterized in that: the front end and the rear end of the air duct (5) are respectively provided with a plurality of air guide pipes (51) and air guide inlet pipes (52), and the air guide pipes (51) are respectively inserted and fixed in the air outlet chamber (22) and the air guide chamber (31) and are respectively opposite to the pipe orifice of the heating pipe (23) and the pipe orifice of the radiating pipe (33).
5. The energy-saving and environment-friendly heating device based on natural gas catalytic combustion in the tunnel furnace as claimed in claim 4, is characterized in that: the number of the air guide outlet pipes (51) is equal to that of the heating pipes (23), and the number of the radiating pipes (33) is equal to that of the air guide inlet pipes (52).
6. The energy-saving and environment-friendly heating device based on natural gas catalytic combustion in the tunnel furnace as claimed in claim 1, is characterized in that: the gas catalytic heating mechanism (2) and the heat dissipation mechanism (3) are both positioned at the upper part of the tunnel furnace (1), and the natural gas conveying pipe (4) is positioned at the outer side of the tunnel furnace (1) and is distributed above the preheating zone (c).
CN202122116048.7U 2021-09-03 2021-09-03 Energy-saving and environment-friendly heating device based on natural gas catalytic combustion in tunnel furnace Active CN215524140U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122116048.7U CN215524140U (en) 2021-09-03 2021-09-03 Energy-saving and environment-friendly heating device based on natural gas catalytic combustion in tunnel furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122116048.7U CN215524140U (en) 2021-09-03 2021-09-03 Energy-saving and environment-friendly heating device based on natural gas catalytic combustion in tunnel furnace

Publications (1)

Publication Number Publication Date
CN215524140U true CN215524140U (en) 2022-01-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122116048.7U Active CN215524140U (en) 2021-09-03 2021-09-03 Energy-saving and environment-friendly heating device based on natural gas catalytic combustion in tunnel furnace

Country Status (1)

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CN (1) CN215524140U (en)

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