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CN113483489B - A large flow indirect heat exchange type high temperature and high pressure hot blast stove - Google Patents

A large flow indirect heat exchange type high temperature and high pressure hot blast stove Download PDF

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Publication number
CN113483489B
CN113483489B CN202110658245.3A CN202110658245A CN113483489B CN 113483489 B CN113483489 B CN 113483489B CN 202110658245 A CN202110658245 A CN 202110658245A CN 113483489 B CN113483489 B CN 113483489B
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temperature
wall
furnace body
heat exchange
hot blast
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CN113483489A (en
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付衍琛
徐国强
刘银龙
闻洁
全永凯
董苯思
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Beihang University
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Beihang University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00Air heaters
    • F24H3/02Air heaters with forced circulation
    • F24H3/06Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00Casings; Linings; Walls
    • F23M5/02Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
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Abstract

一种大流量间接换热式高温高压热风炉,包括炉体、进气集管、出气集管、中间集管、燃烧器、烟囱、翅片管束和光管;炉体内设有内墙将炉体内部分为低温仓和高温仓,内墙与炉体的内壁之间留有通风开口;烟囱连接炉体并相互连通;高温仓在炉体上设有安装孔;燃烧器连接炉体,燃烧器的燃烧头穿过安装孔并伸入高温仓内;翅片管束连接低温仓的内壁,翅片管束的多个进气端均与进气集管连通,翅片管束的多个出气端均与中间集管连通;多个光管均连接高温仓的内壁,多个光管均与中间集管和出气集管连通。本发明提供的大流量间接换热式高温高压热风炉结构合理,热能利用率高,能高效快速的获得高温空气,安全环保。

Figure 202110658245

A large-flow indirect heat-exchange type high-temperature and high-pressure hot blast furnace includes a furnace body, an air inlet header, an air outlet header, an intermediate header, a burner, a chimney, a finned tube bundle and a light pipe; The part is a low temperature warehouse and a high temperature warehouse, and there are ventilation openings between the inner wall and the inner wall of the furnace body; the chimney is connected to the furnace body and communicated with each other; the high temperature warehouse is provided with mounting holes on the furnace body; the burner is connected to the furnace body, and the The combustion head passes through the installation hole and extends into the high temperature chamber; the finned tube bundle is connected to the inner wall of the low temperature chamber, the multiple inlet ends of the finned tube bundle are connected with the intake manifold, and the multiple outlet ends of the finned tube bundle are connected to the middle The headers are connected; the plurality of light pipes are all connected to the inner wall of the high temperature chamber, and the plurality of light pipes are all communicated with the intermediate header and the gas outlet header. The large-flow indirect heat-exchange high-temperature and high-pressure hot blast stove provided by the invention has reasonable structure, high thermal energy utilization rate, can obtain high-temperature air efficiently and quickly, and is safe and environmentally friendly.

Figure 202110658245

Description

High-flow indirect heat exchange type high-temperature high-pressure hot blast stove
Technical Field
The invention relates to the technical field of air heating, in particular to a large-flow indirect heat exchange type high-temperature high-pressure hot blast stove.
Background
At present, energy conservation and consumption reduction become important concerns of various industries, development of energy-saving heating equipment becomes important research points in various fields through technical innovation, compared with the traditional coal-fired hot blast stove, the gas-fired and oil-fired hot blast stove uses clean energy, reduces the use of high-pollution fuels such as coal and the like, and is widely used.
In industry, hot blast stoves are widely used as equipment for drying devices such as air drying and tower drying; hot blast stoves are also widely used in agricultural production, building materials, tobacco and other industries. Hot blast stoves are equipment for converting heat energy produced by burning fuel and are classified into direct hot blast stoves and indirect hot blast stoves according to the difference of output heat medium. The high-temperature medium output by the direct hot blast stove is flue gas generated by combustion, and is suitable for occasions with higher requirement on the temperature of inlet air but with relaxed requirement on the cleanliness of the inlet air; the indirect hot blast stove is suitable for occasions requiring clean air as the inlet air; the principle of the heating device in the hot blast stove is that fresh cold air and high-temperature flue gas generated by fuel combustion exchange heat through various heat exchange surfaces, and clean cold air absorbs heat and is heated to be clean high-temperature air.
Some high-temperature indirect hot blast stoves at present often can generate thermal stress and thermal expansion deformation soon after the hot blast stove operates because of too large temperature difference at the cold side and the hot side, so that metal materials are fatigued to generate cracks; therefore, the burned flue gas generally needs to pass through a radiation section or a wind mixing chamber to directly mix part of cold air so as to reduce the temperature of the flue gas and then enter a subsequent heat exchanger, so that a large amount of high-quality high-level heat energy is wasted, and the temperature rise amplitude of clean air is limited; in addition, the traditional indirect hot blast stove has too single heat exchange structure, poor heat transfer efficiency, large occupied area and poor economical efficiency of the whole equipment.
Disclosure of Invention
Objects of the invention
The large-flow indirect heat exchange type high-temperature and high-pressure hot blast stove provided by the invention has the advantages of reasonable structure, high heat energy utilization rate, capability of efficiently and quickly obtaining high-temperature air, safety, environmental friendliness, great reduction in use cost and improvement on the overall economy of equipment.
(II) technical scheme
The invention provides a high-flow indirect heat exchange type high-temperature and high-pressure hot blast stove which comprises a stove body, an air inlet collecting pipe, an air outlet collecting pipe, a middle collecting pipe, a burner, a chimney, a fin tube bundle and a light tube, wherein the middle collecting pipe is arranged in the stove body;
an inner wall is arranged in the furnace body; the inner wall is vertically distributed and used for dividing the interior of the furnace body into a low-temperature bin and a high-temperature bin, and a ventilation opening for allowing high-temperature flue gas in the high-temperature bin to flow into the low-temperature bin is reserved between the inner wall and the inner wall of the furnace body;
the chimney is connected with the furnace body, and the interior of the chimney is communicated with the interior of the low-temperature bin;
the high-temperature bin is provided with a mounting hole on the inner wall of the furnace body far away from the ventilation opening; the burner is connected with the furnace body, and a burner head of the burner passes through the mounting hole and extends into the high-temperature bin;
the finned tube bundle is connected with the inner wall of the low-temperature bin, a plurality of air inlet ends of the finned tube bundle are communicated with the air inlet collecting pipe, and a plurality of air outlet ends of the finned tube bundle are communicated with the middle collecting pipe;
the light pipes are evenly distributed side by side, the light pipes are all connected with the inner wall of the high-temperature bin, the air inlet ends of the light pipes are all communicated with the middle collecting pipe, and the air outlet ends of the light pipes are all communicated with the air outlet collecting pipe.
Preferably, the inner wall is built by refractory bricks.
Preferably, the furnace body comprises a base, four side walls and a top cover;
the lower end faces of the four side walls are respectively connected with the four right-angle sides of the base, the four side walls are sequentially connected, and the upper end faces of the four side walls are connected with the top cover.
Preferably, the base, the four side walls and the top cover are all built by refractory bricks.
Preferably, the outer sides of the base, the four side walls and the top cover are all provided with heat insulation layers; the outside of heat preservation all is equipped with the back up coat.
Preferably, the heat-insulating layer is formed by covering a ceramic fiber board heat-insulating material on the outer side of the base, the outer side of the side wall or the outer side of the top cover; the thickness covered by the ceramic fiber board heat-insulating material is 130-170 mm.
Preferably, the reinforcing layer is made of a printed decorative steel plate; the thickness of the printing decorative steel plate is 0.5 mm.
Preferably, the finned tube bundle comprises a plurality of finned tubes and helical band fins;
the projection shape of each finned tube is snakelike, a plurality of finned tubes are communicated with the air inlet header and the middle header respectively, the plurality of finned tubes are arranged side by side at equal intervals and are connected with helical band fins.
Preferably, the plurality of finned tubes and the helical fins are made of 304 stainless steel.
Preferably, the projection shape of each light pipe is a serpentine shape, and each light pipe is made of 310S stainless steel.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
the interior of the furnace body is divided into a high-temperature bin and a low-temperature bin, and high-temperature flue gas flowing towards the low-temperature bin along the high-temperature bin and cold air exchange heat in an integral countercurrent flow mode; the heat exchange is carried out in the high-temperature bin by adopting a 310S stainless steel light pipe bundle with good temperature resistance, and the heat exchange is carried out in the low-temperature bin by adopting a common 304 stainless steel fin pipe bundle, so that not only is the heat energy of high-temperature flue gas in the high-temperature bin fully utilized, but also the heat exchange area is increased by utilizing the spiral belt fins 12 arranged in the low-temperature bin, the utilization rate of the heat energy is improved, the high heat exchange quantity is achieved, and finally, large-flow high-temperature high-pressure clean air at the temperature of 600-700 ℃ is obtained in the air outlet collecting pipe;
the hot blast stove provided by the invention has a simple and novel structural form, can adapt to high-pressure media, can greatly improve the utilization rate of heat energy, can ensure that the heated air can reach 600-700 ℃, is safe and environment-friendly, greatly reduces the use cost, improves the overall economy of equipment, and is worthy of popularization.
Drawings
Fig. 1 is a structural schematic diagram of a high-flow indirect heat exchange type high-temperature high-pressure hot blast stove without a top cover, which is provided by the invention.
Fig. 2 is a schematic structural diagram of a fin tube bundle in a high-flow indirect heat exchange type high-temperature and high-pressure hot air furnace according to the invention.
Fig. 3 is a schematic structural diagram of a light pipe in a high-flow indirect heat exchange type high-temperature and high-pressure hot air furnace according to the present invention.
Reference numerals: 1. a base; 2. a side wall; 3. an inner wall; 4. an intake manifold; 5. an air outlet header; 6. an intermediate header; 7. a burner; 8. a chimney; 9. a finned tube bundle; 11. a finned tube; 12. helical band fins; 13. a light pipe; 14. a low-temperature bin; 15. and (4) a high-temperature bin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the high-flow indirect heat exchange type high-temperature high-pressure hot blast stove provided by the invention comprises a stove body, an air inlet manifold 4, an air outlet manifold 5, an intermediate manifold 6, a burner 7, a chimney 8, a finned tube bundle 9 and a light pipe 13;
an inner wall 3 is arranged in the furnace body; the inner wall 3 is vertically distributed and used for dividing the interior of the furnace body into a low-temperature bin 14 and a high-temperature bin 15, and a ventilation opening for allowing high-temperature flue gas in the high-temperature bin 15 to flow into the low-temperature bin 14 is reserved between the inner wall 3 and the inner wall of the furnace body;
it should be noted that the ventilation opening is reserved for forcing the hot flue gas flow in the high-temperature bin 15 to turn 180 degrees at the end of the inner wall 3 to form two return flows;
the chimney 8 is connected with the furnace body, and the interior of the chimney 8 is communicated with the interior of the low-temperature bin 14;
further, the chimney 8 is vertical to the upper end surface of the furnace body and is positioned on one side far away from the ventilation opening; the flue gas flowing into the chimney 8 can be directly discharged through the chimney 8, and can also flow into other smoke exhaust air channels through the chimney 8;
the high-temperature bin 15 is provided with a mounting hole on the inner wall of the furnace body far away from the ventilation opening;
furthermore, the inner diameter of the high-temperature bin 15 along the gas flowing direction is gradually increased to form an expanded horn-shaped structure, so that the high-temperature flue gas generated by the combustor 7 can be conveniently and preliminarily diffused;
the burner 7 is connected with the furnace body, and the burning head of the burner 7 passes through the mounting hole and extends into the high-temperature bin 15;
further, the combustor 7 is selected from but not limited to an oil-fired combustor or a gas-fired combustor, and the combustor 7 has a proportion adjusting function so as to conveniently adjust the heat supply amount according to the requirement;
the finned tube bundle 9 is connected with the inner wall of the low-temperature bin 14, a plurality of air inlet ends of the finned tube bundle 9 are communicated with the air inlet collecting pipe 4, and a plurality of air outlet ends of the finned tube bundle 9 are communicated with the middle collecting pipe 6;
the plurality of light pipes 13 are uniformly distributed in parallel, the plurality of light pipes 13 are connected with the inner wall of the high-temperature bin 15, the air inlet ends of the plurality of light pipes 13 are communicated with the middle header 6, and the air outlet ends of the plurality of light pipes 13 are communicated with the air outlet header 5;
furthermore, the air inlet manifold 4, the air outlet manifold 5 and the middle manifold 6 are all positioned at the outer side of the furnace body, and heat insulation layers are arranged at the outer sides of the air inlet manifold 4, the air outlet manifold 5 and the middle manifold 6.
In one embodiment of the invention, when in use, the combustor 7 combusts fuel to generate high-temperature flue gas in a high-temperature area, and the high-temperature flue gas flows along the directions of the high-temperature bin 15, the low-temperature bin 14 and the chimney 8; the external clean cold air enters the finned tube bundle 9 from the air inlet header 4, the finned tube bundle 9 is arranged in the low-temperature bin 14, and the low-temperature air flowing through the finned tube bundle 9 through heat exchange is heated by the low-temperature flue gas in the low-temperature bin 14; the heated air enters the middle header 6 and then enters the plurality of light tubes 13, the plurality of light tubes 13 are arranged in the high-temperature bin 15, the high-temperature flue gas in the high-temperature bin 15 heats the low-temperature air in the plurality of light tubes 13, and the heated high-temperature flue gas flows out of the air outlet header 5.
In an alternative embodiment, the inner wall 3 is made of refractory bricks; the interior wall 3 built by the refractory bricks has stable structure and good high temperature resistance.
In an optional embodiment, the furnace body comprises a base 1, four side walls and a top cover;
the lower end faces of the four side walls 2 are respectively connected with four right-angle sides of the base 1, the four side walls 2 are sequentially connected, and the upper end faces of the four side walls 2 are connected with the top cover.
In an alternative embodiment, the base 1, the four side walls and the top cover are all made of refractory bricks.
In an optional embodiment, the outer sides of the base 1, the four side walls and the top cover are all provided with heat-insulating layers so as to improve the heat-insulating property of the furnace body;
the outside of heat preservation all is equipped with the back up coat.
In an optional embodiment, the heat-insulating layer is formed by covering ceramic fiber board heat-insulating materials on the outer side of the base 1 or the outer side of the side wall or the outer side of the top cover; the thickness covered by the ceramic fiber board heat-insulating material is 130-170 mm.
In an alternative embodiment, the reinforcing layer is made of a printed decorative steel plate; the thickness of the printing decorative steel plate is 0.5 mm.
In an alternative embodiment, the finned tube bundle 9 comprises a plurality of finned tubes 11 and spiral-finned tubes 12;
the projection shape of each finned tube 11 is snake-shaped, each finned tube 11 is made by bending a tube through a tube bending machine, and each finned tube 11 is made into snake-shaped shape so as to improve the flowing time of air in each finned tube 11 and improve the effect of preheating the air;
the finned tubes 11 are respectively communicated with the air inlet manifold 4 and the middle manifold 6, the finned tubes 11 are arranged side by side at equal intervals, and the finned tubes 11 are connected with helical fins 12;
further, a plurality of finned tubes 11 are connected with helical fins 12 in a laser welding mode; the fin tubes 11 are connected by the helical band fins 12 to improve the efficiency of heat energy exchange in the low temperature bin 14.
In an alternative embodiment, the plurality of fin tubes 11 and the helical fins 12 are made of 304 stainless steel;
wherein the pipe diameter of each finned tube 11 is 40mm, the wall thickness is 4mm, the diameter of the elbow is 100mm, and 16 straight tube sections and 15 elbows are selected and selected but not limited;
the thickness of the spiral band fin 12 is 0.6mm, the height of the fin is 14mm, and the fin interval is 3.5 mm.
In an alternative embodiment, the projection shape of each light pipe 13 is a serpentine shape, each light pipe 13 is made of 310S stainless steel, and each light pipe 13 is made into a serpentine shape, so as to increase the time for air to flow through each light pipe 13, thereby increasing the heating effect on the air;
wherein, the pipe diameter of each light pipe 13 is 40mm, the wall thickness is 4mm, the elbow diameter is 100mm, the total 10 straight pipe sections, 9 elbows of chooseing but not limiting to select.
The application examples of the large-flow indirect heat exchange type high-temperature high-pressure hot blast stove for practical application provided by the invention are as follows:
the furnace body of the large-flow indirect heat exchange type high-temperature and high-pressure hot blast furnace has the length of 2.7m, the width of 1.75m and the height of 0.9 m;
the high-flow high-pressure clean air with the mass flow of 0.4kg/s, the pressure of 0.5MPa and the temperature of 20 ℃ indirectly exchanges heat with high-temperature flue gas with the temperature of about 1200 ℃ generated in the furnace body by an oil burner with the theoretical power upper limit of 450 kW;
the high-temperature flue gas with the temperature of 1200 ℃ is cooled to about 1000 ℃ after passing through a horn-shaped expansion section in a high-temperature bin 15, then is sequentially contacted with a plurality of light tubes 13 in the high-temperature bin 15 and a fin tube bundle 9 in a low-temperature bin 14 for heat exchange, and finally waste flue gas with the temperature of about 300 ℃ is discharged from a chimney 8;
after the total countercurrent heat exchange of the clean air and the hot flue gas at normal temperature, the temperature is raised to 650 ℃, the clean air flows to a subsequent test section through an air outlet header pipe 5, and the test shows that the total pressure loss of the air is not more than 10 kPa; in addition, after the base 1, the side wall 2 and the outer side of the top cover are covered with heat insulation materials with the thickness of 150mm, the temperature of the outer surface of the furnace body is not more than 70 ℃, and scalding to users can not be caused obviously.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (8)

1. A high-flow indirect heat exchange type high-temperature high-pressure hot blast stove is characterized by comprising a stove body, an air inlet collecting pipe (4), an air outlet collecting pipe (5), a middle collecting pipe (6), a burner (7), a chimney (8), a finned pipe bundle (9) and a light pipe (13);
an inner wall (3) is arranged in the furnace body; the inner wall (3) is vertically distributed and used for dividing the interior of the furnace body into a low-temperature bin (14) and a high-temperature bin (15), a ventilation opening for allowing high-temperature flue gas in the high-temperature bin (15) to flow into the low-temperature bin (14) is reserved between the inner wall (3) and the inner wall of the furnace body, and the ventilation opening is used for forcing hot flue gas in the high-temperature bin (15) to turn 180 degrees at the tail end of the inner wall (3) to form two-pass flow; the inner diameter of the interior of the high-temperature bin (15) along the gas flowing direction is gradually increased to form an expanded horn-shaped structure;
the chimney (8) is connected with the furnace body, and the interior of the chimney (8) is communicated with the interior of the low-temperature bin (14);
the high-temperature bin (15) is provided with a mounting hole on the inner wall of the furnace body far away from the ventilation opening; the burner (7) is connected with the furnace body, and a burning head of the burner (7) penetrates through the mounting hole and extends into the high-temperature bin (15);
the finned tube bundle (9) is connected with the inner wall of the low-temperature bin (14), a plurality of air inlet ends of the finned tube bundle (9) are communicated with the air inlet collecting tube (4), and a plurality of air outlet ends of the finned tube bundle (9) are communicated with the middle collecting tube (6); the finned tube bundle (9) comprises a plurality of finned tubes (11) and spiral band fins (12);
the projection shape of each finned tube (11) is snake-shaped, a plurality of finned tubes (11) are respectively communicated with the air inlet header (4) and the middle header (6), the plurality of finned tubes (11) are arranged side by side at equal intervals and are respectively connected with helical band fins (12);
the plurality of light pipes (13) are uniformly distributed in parallel, the plurality of light pipes (13) are all connected with the inner wall of the high-temperature bin (15), the air inlet ends of the plurality of light pipes (13) are all communicated with the middle header (6), the air outlet ends of the plurality of light pipes (13) are all communicated with the air outlet header (5), the projection shape of each light pipe (13) is snake-shaped, and each light pipe (13) is made of 310S stainless steel.
2. A high flow indirect heat exchange type high temperature and high pressure hot blast stove according to claim 1, characterized in that the inner wall (3) is built of refractory bricks.
3. The high-flow indirect heat exchange type high-temperature and high-pressure hot blast stove according to claim 1, wherein the stove body comprises a base (1), four side walls and a top cover;
the lower end faces of the four side walls (2) are respectively connected with four right-angle sides of the base (1), the four side walls (2) are sequentially connected, and the upper end faces of the four side walls (2) are connected with the top cover.
4. A high-flow indirect heat exchange type high-temperature high-pressure hot-blast stove according to claim 3, characterized in that the base (1), the four side walls and the top cover are built by refractory bricks.
5. The high-flow indirect heat exchange type high-temperature and high-pressure hot blast stove according to claim 3, characterized in that the outer sides of the base (1), the four side walls and the top cover are all provided with insulating layers; the outside of heat preservation all is equipped with the back up coat.
6. The high-flow indirect heat exchange type high-temperature and high-pressure hot blast stove according to claim 5, wherein the heat insulation layer is formed by covering ceramic fiber board heat insulation materials on the outer side of the base (1) or the outer side of the side wall or the outer side of the top cover; the thickness covered by the ceramic fiber board heat-insulating material is 130-170 mm.
7. The high-flow indirect heat exchange type high-temperature high-pressure hot-blast stove according to claim 5, wherein the reinforcing layer is made of a printed decorative steel plate; the thickness of the printing decorative steel plate is 0.5 mm.
8. The high-flow indirect heat exchange type high-temperature high-pressure hot blast stove according to claim 1, wherein the plurality of finned tubes (11) and the spiral-band fins (12) are made of 304 stainless steel.
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Families Citing this family (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2655113Y (en) * 2003-11-18 2004-11-10 汪萍 Indirect hot air stove
CN201527095U (en) * 2009-10-22 2010-07-14 王全红 High-efficient environment-friendly energy-saving hot air heating boiler
KR101393380B1 (en) * 2014-03-06 2014-05-09 김정섭 Warm air circulator using waste-heat of exhaust gas
CN104019541A (en) * 2014-05-19 2014-09-03 广东易微环保能源科技有限公司 Environment-friendly gasification counter-flow combustion hot-blast stove
CN104180524A (en) * 2014-08-26 2014-12-03 唐山金沙燃烧热能科技有限公司 High-temperature high-pressure indirect self-suspending hot-blast stove

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211424404U (en) * 2019-11-06 2020-09-04 长沙凯天工研院环保服务有限公司 Heavy metal super-enrichment plant incinerator and incineration flue gas treatment system thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2655113Y (en) * 2003-11-18 2004-11-10 汪萍 Indirect hot air stove
CN201527095U (en) * 2009-10-22 2010-07-14 王全红 High-efficient environment-friendly energy-saving hot air heating boiler
KR101393380B1 (en) * 2014-03-06 2014-05-09 김정섭 Warm air circulator using waste-heat of exhaust gas
CN104019541A (en) * 2014-05-19 2014-09-03 广东易微环保能源科技有限公司 Environment-friendly gasification counter-flow combustion hot-blast stove
CN104180524A (en) * 2014-08-26 2014-12-03 唐山金沙燃烧热能科技有限公司 High-temperature high-pressure indirect self-suspending hot-blast stove

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