CN210463577U - High-temperature hot blast stove with heat exchange body for direct heat exchange - Google Patents
High-temperature hot blast stove with heat exchange body for direct heat exchange Download PDFInfo
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- CN210463577U CN210463577U CN201921025958.0U CN201921025958U CN210463577U CN 210463577 U CN210463577 U CN 210463577U CN 201921025958 U CN201921025958 U CN 201921025958U CN 210463577 U CN210463577 U CN 210463577U
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Abstract
The utility model relates to a high temperature hot blast stove with heat exchange body direct heat exchange, which effectively solves the problems of reducing cost, prolonging service life and improving air temperature and thermal efficiency, an air nozzle and a gas nozzle are arranged on the inner wall of a ceramic burner, the air nozzle and the gas nozzle are connected with an air inlet pipe and a gas inlet pipe through an air loop and a gas loop in the ceramic burner, an arch crown which are connected into a whole is arranged at the upper opening part of the ceramic burner, a high temperature hot air outlet pipe is arranged on the upper part of the stove body close to the side wall of a combustion chamber body, a cold air inlet pipe is arranged at the lower part of the stove body, a waste gas outlet pipe is arranged on the side wall of a base, a heat storage chamber body is sleeved at the center in the stove body, heat exchange bodies which are arranged alternately are evenly distributed in the heat storage chamber body, the upper end of the cold air channel, the vertical flue gas through hole is sealed and isolated from the cold air through hole, the upper end of the vertical flue gas channel is communicated with the combustion chamber, and the lower end of the vertical flue gas channel is communicated with the flue gas chamber.
Description
Technical Field
The utility model relates to a hot blast stove, in particular to a high-temperature hot blast stove with a heat exchange body for direct heat exchange.
Background
The hot blast stove is a common device in the fields of heat energy, chemical engineering and metallurgical engineering, mainly comprises a stove body, a burner and a vault, and is an indispensable important thermotechnical device for obtaining high temperature by adopting gas combustion. In the application with low temperature requirement, the dividing wall type heat exchange hot blast stove made of metal is the mainstream, and the dividing wall type hot blast stove which is made of metal cannot be directly used for obtaining hot blast of high-temperature gas, but a heat accumulating type ceramic heat exchange intermittent working hot blast stove is adopted. However, due to the structural problems, the lack of high-temperature resistant metal materials or the poor high-temperature performance of the metal materials, even if the heat accumulating type hot blast stove is far higher than a dividing wall type hot blast stove from the investment cost to the operating cost, because a plurality of hot blast stoves are required to operate alternately, the continuous supply of high-temperature process gas can be realized, three hot blast stoves or four hot blast stoves are required to be burnt for one time or two times, the investment cost is high, and the service life is not fully satisfactory. The air temperature and the heat efficiency are also required to be further improved, so the improvement and innovation of the hot blast stove are imperative.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a high-temperature hot-blast stove with direct heat exchange of a heat exchange body, which can effectively solve the problems of reducing investment cost, prolonging service life and further improving air temperature and thermal efficiency.
The technical scheme of the utility model is that, a high temperature hot blast stove with direct heat transfer of heat exchanger, which comprises a base, a furnace body, ceramic burner and vault, the furnace body is installed on the base, ceramic burner is installed at the upper opening of furnace body through the connector through the combustion chamber body that the sub-unit links together, open air nozzle and the coal gas spout that staggers and arrange on same ring line on ceramic burner's the inner wall, air nozzle is linked together with ceramic burner's air inlet pipe through the air ring way in ceramic burner, the coal gas spout is linked together with ceramic burner's coal gas inlet pipe through the coal gas ring way in ceramic burner, ceramic burner's upper opening is equipped with the vault as an organic whole, furnace body upper portion is close to and is equipped with high temperature hot blast outlet pipe on the combustion chamber lateral wall, be the combustion chamber in the combustion chamber body, the furnace body lower part is close to and is equipped with cold wind inlet pipe on the, a grate is arranged between the upper part of the base and the lower part of the furnace body, a heat accumulation chamber body is sleeved in the center of the furnace body, the lower part of the heat accumulation chamber body is arranged on the grate, heat exchange bodies (heat accumulation bodies) which are alternately opened are uniformly distributed in the heat accumulation chamber body from top to bottom, sealing walls which are staggered and uniformly distributed are arranged between the outer wall between every two adjacent heat exchange bodies and the inner wall of the furnace body, transverse cold air through holes (not marked in the figure) are uniformly distributed on the vertical wall body of the heat accumulation chamber body, two ends of each cold air through hole are respectively communicated with a gap between the furnace body and the heat accumulation chamber body and the transverse cold air through holes on the heat exchange bodies to form a snake-shaped cold air channel (or a hot air channel after heat exchange), the upper end of the cold air channel is communicated with a high-temperature hot; each heat exchange body is provided with an upper vertical flue gas through hole and a lower vertical flue gas through hole, each vertical flue gas through hole is sealed and isolated from the corresponding transverse cold air through hole, the vertical flue gas through holes in each heat exchange body are communicated to form a vertical flue gas channel, the upper end of the vertical flue gas channel is communicated with the combustion chamber, the lower end of the vertical flue gas channel is communicated with a flue gas chamber in the base through a grate, and the flue gas chamber is communicated with a waste gas outlet pipe in the side wall of the base to form a waste gas discharge structure.
The utility model discloses novel structure is unique, builds convenient to use, and is with low costs, efficient, long service life, and energy-concerving and environment-protective is the innovation on the hot-blast furnace, has huge economy and social.
Drawings
Fig. 1 is a front view of the structural section of the present invention (in fig. 1, vertical arrows indicate the flow direction of high temperature flue gas, and horizontal arrows indicate the flow direction of cold air).
Fig. 2 is a plan view of the furnace body of the present invention.
Fig. 3 is a front view of the thermal storage chamber body of the present invention in partial section.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in figures 1-3, the utility model relates to a high temperature hot blast stove with heat exchanger for direct heat exchange, which comprises a base, a stove body, a ceramic burner and a vault, wherein the stove body 1 is arranged on the base 2, the ceramic burner 4 is arranged on the upper opening of the stove body 1 through a connecting body 6 via a combustion chamber body 3 with the lower part connected together, the inner wall of the ceramic burner 4 is provided with air nozzles 4-3 and gas nozzles 4-4 which are staggered and arranged on the same ring line, the air nozzles 4-3 are communicated with an air inlet pipe 4-1 of the ceramic burner through an air ring channel in the ceramic burner 4, the gas nozzles 4-4 are communicated with a gas inlet pipe 4-2 of the ceramic burner through a gas ring channel in the ceramic burner 4, the upper opening of the ceramic burner is provided with the vault 5 which is connected into a whole, the side wall of the stove body 1 close to the combustion chamber body 3 is provided with a high temperature hot blast outlet, a combustion chamber 7 is arranged in the combustion chamber body 3, a cold air inlet pipe 1-2 is arranged on the side wall of the lower part of the furnace body close to the base, a waste gas outlet pipe 2-1 is arranged on the side wall of the base, a grate is arranged between the upper part of the base and the lower part of the furnace body, a heat storage chamber body is sleeved in the center of the furnace body, the lower part of the heat storage chamber body is arranged on the grate, heat exchange bodies (heat storage bodies) 1-4 which are alternately arranged are uniformly distributed in the heat storage chamber body, sealing walls 1-3 which are alternately and uniformly distributed are arranged between the outer wall between every two adjacent heat exchange bodies 1-4 and the inner wall of the furnace body, transverse cold air through holes (not marked in the figure) are uniformly distributed on the vertical wall body of the heat storage chamber body, the two ends of each cold air through hole are respectively communicated with a gap 1-7 between the furnace body and the heat storage chamber body, the upper end of the cold air channel is communicated with the high-temperature hot air outlet pipe 1-1, and the lower end of the cold air channel is communicated with the inlet of the cold air inlet pipe 1-2, so that a high-temperature hot air discharge structure after cold air heat exchange is formed; each heat exchange body 1-4 is provided with an upper smoke vertical through hole 1-5 and a lower smoke vertical through hole 1-5, each smoke vertical through hole is sealed and isolated from the corresponding transverse cold air through hole 1-6, the smoke vertical through holes in each heat exchange body are communicated to form a smoke vertical channel, the upper end of the smoke vertical channel is communicated with a combustion chamber 7, the lower end of the smoke vertical channel is communicated with a smoke chamber 2-4 in the base through a grate, and the smoke chamber 2-4 is communicated with a waste gas outlet pipe 2-1 in the side wall of the base to form a waste gas discharge structure.
In order to ensure the use effect and convenient use, the cross section of the furnace body 1 is rectangular or circular, a reinforced steel rib plate is arranged outside the furnace body, and a high-temperature refractory material layer is built on the inner wall of the furnace body;
vertical parallel isolation bodies 2-2 are built in a flue gas chamber 2-4 in the base 2, transverse waste gas through holes 2-3 are formed in the isolation bodies 2-2, and the waste gas through holes 2-3 are communicated with a waste gas outlet pipe 2-1 to form a waste gas discharge structure;
the upper end of the high-temperature hot gas discharge structure is hermetically isolated from the combustion chamber 7, the lower end of the high-temperature hot gas discharge structure is hermetically isolated from the waste gas outlet pipe 2-1, and the sealing walls 1-3 are arranged at the gaps between the furnace body 1 and the heat storage chamber body on the upper side and the lower side of the heat exchange body 1-4 in a staggered manner to form the high-temperature hot gas serpentine discharge structure.
When the utility model is used, coal gas and air respectively pass through the coal gas loop, the air loop enters the combustion chamber from the coal gas nozzles 4-4 and the air nozzles 4-3 for combustion and directly exchanges heat through the heat exchange body, because the heat exchange body structure in the heat exchange chamber is a high-temperature hot gas discharge channel (structure) which is vertical and horizontal and is not communicated with each other and a snakelike cold air channel (structure), the high temperature generated by the combustion chamber is discharged from a high-temperature hot air outlet pipe through the high-temperature hot gas discharge channel from the upper part and the lower part, cold air enters spaced transverse cold air through holes through the cold air inlet pipe and then upwards enters the transverse cold air through holes on each heat exchange body, the cold air channel is turned back to enter the transverse cold air through holes of the heat exchange body on the upper layer, the cold air channel is a snakelike cold air channel (or called as a hot air channel after heat, and the heat storage time is greatly prolonged, the temperature is improved, the heat utilization rate is improved, the temperature of waste flue gas is effectively reduced, and energy conservation and emission reduction are realized. And field tests and tests show that the effect is very good, the smoke exhaust temperature of the flue is 350 ℃ higher and less than 450 ℃, the exhaust gas temperature of 350-, thereby increasing the combustion temperature, achieving the purposes of increasing the air temperature and saving energy, and after heat exchange, the temperature of the waste gas discharged into the atmosphere is less than 150 ℃, compared with the traditional configuration of three hot blast furnaces with two combustion and one delivery or two combustion and two delivery or four hot blast furnaces, only one hot blast furnace or one hot blast furnace is needed to be configured, so that the investment cost is greatly reduced, the service life is effectively prolonged, the investment can be saved by at least more than 45 percent, the temperature in the furnace body can reach 1300 and 1500 ℃, the temperature of the waste gas discharged after heat exchange is greatly reduced, the energy conservation and emission reduction and the environmental protection are really realized, and the huge economic and social benefits are realized.
Claims (4)
1. A high-temperature hot blast stove with a heat exchange body for direct heat exchange comprises a base, a stove body, a ceramic burner and a vault, and is characterized in that the stove body (1) is arranged on the base (2), the ceramic burner (4) is arranged at the upper opening of the stove body (1) through a connector (6) via a combustion chamber body (3) with the lower part connected together, air nozzles (4-3) and gas nozzles (4-4) which are staggered on the same ring line are arranged on the inner wall of the ceramic burner (4), the air nozzles (4-3) are communicated with an air inlet pipe (4-1) of the ceramic burner through an air ring channel in the ceramic burner (4), the gas nozzles (4-4) are communicated with a gas inlet pipe (4-2) of the ceramic burner through a gas ring channel in the ceramic burner (4), and the vault (5) connected into a whole is arranged at the upper opening of the ceramic burner, the high-temperature hot air outlet pipe (1-1) is arranged on the side wall of the upper part of the furnace body (1) close to the combustion chamber body (3), the combustion chamber (7) is arranged in the combustion chamber body (3), the cold air inlet pipe (1-2) is arranged on the side wall of the lower part of the furnace body close to the base, the waste air outlet pipe (2-1) is arranged on the side wall of the base, a grate is arranged between the upper part of the base and the lower part of the furnace body, a heat storage chamber body is sleeved in the center of the furnace body, the lower part of the heat storage chamber body is arranged on the grate, heat exchange bodies (1-4) are uniformly distributed at intervals up and down in the heat storage chamber body, sealing walls (1-3) are uniformly distributed in a staggered manner between the outer wall between every two adjacent heat exchange bodies (1-4) and the inner wall of the furnace body, transverse cold air through holes are uniformly distributed on the vertical wall body of the heat storage chamber body, and the two The upper end of the cold air channel is communicated with a high-temperature hot air outlet pipe (1-1), and the lower end of the cold air channel is communicated with an inlet of a cold air inlet pipe (1-2), so that a high-temperature hot air discharging structure after cold air heat exchange is formed; vertical through holes (1-5) of flue gas are arranged on each heat exchange body (1-4) from top to bottom, each vertical through hole of flue gas is sealed and isolated from the corresponding transverse cold air through hole (1-6), the vertical through holes of flue gas on each heat exchange body are communicated to form a vertical flue gas channel, the upper end of the vertical flue gas channel is communicated with a combustion chamber (7), the lower end of the vertical flue gas channel is communicated with a flue gas chamber (2-4) in the base through a grate, and the flue gas chamber (2-4) is communicated with a waste gas outlet pipe (2-1) on the side wall of the base to form a waste gas discharge structure.
2. The high-temperature hot blast stove with the heat exchange body for direct heat exchange according to claim 1, characterized in that the cross section of the stove body (1) is rectangular or circular, a reinforced steel rib plate is arranged outside the stove body, and a high-temperature refractory material layer is built on the inner wall.
3. The high-temperature hot blast stove with the direct heat exchange of the heat exchange body according to the claim 1 is characterized in that vertical parallel separators (2-2) are built in flue gas chambers (2-4) in the base (2), transverse waste gas through holes (2-3) are formed in the separators (2-2), and the waste gas through holes (2-3) are communicated with a waste gas outlet pipe (2-1) to form a waste gas discharge structure.
4. The hot blast stove with the heat exchange body for direct heat exchange of claim 1, wherein the upper end of the high-temperature hot gas exhaust structure is hermetically isolated from the combustion chamber (7), the lower end of the high-temperature hot gas exhaust structure is hermetically isolated from the exhaust gas outlet pipe (2-1), and the sealing walls (1-3) are arranged in a staggered manner at the gap between the furnace body (1) and the heat storage chamber body on the upper side and the lower side of the heat exchange body (1-4) to form the high-temperature hot gas serpentine exhaust structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025958.0U CN210463577U (en) | 2019-07-03 | 2019-07-03 | High-temperature hot blast stove with heat exchange body for direct heat exchange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025958.0U CN210463577U (en) | 2019-07-03 | 2019-07-03 | High-temperature hot blast stove with heat exchange body for direct heat exchange |
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| CN210463577U true CN210463577U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921025958.0U Active CN210463577U (en) | 2019-07-03 | 2019-07-03 | High-temperature hot blast stove with heat exchange body for direct heat exchange |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161505A (en) * | 2020-11-06 | 2021-01-01 | 西安西热锅炉环保工程有限公司 | High-temperature furnace smoke heat exchange device |
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2019
- 2019-07-03 CN CN201921025958.0U patent/CN210463577U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161505A (en) * | 2020-11-06 | 2021-01-01 | 西安西热锅炉环保工程有限公司 | High-temperature furnace smoke heat exchange device |
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