CN209991765U

CN209991765U - Industrial furnace capable of rapidly heating

Info

Publication number: CN209991765U
Application number: CN201920431798.3U
Authority: CN
Inventors: 张国龙
Original assignee: Jiangsu Jiuding Industrial Furnace Technology Co Ltd
Current assignee: Jiangsu Jiuding Industrial Furnace Technology Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-01-24
Anticipated expiration: 2029-04-02

Abstract

The utility model belongs to the technical field of industrial furnaces, and discloses an industrial furnace capable of rapidly heating, which comprises a furnace body, wherein a combustion chamber and a heating chamber are formed inside the furnace body, the heating chamber is positioned above the combustion chamber, a sealing plate is welded at the top end of the combustion chamber, an upper guide plate and a lower guide plate are respectively welded at the top end and the bottom end of the heating chamber, the lower guide plate is positioned between the upper guide plate and the sealing plate, a gas homogenizing chamber is formed between the lower guide plate and the sealing plate, a gas returning cover and a fourth gas pipe are arranged inside the gas homogenizing chamber, the gas returning cover is sleeved at the outlet end of the fourth gas pipe, the heating chamber is composed of an outer chamber and an inner chamber, the outer chamber is of an annular structure, and a plurality of gas holes are respectively arranged on the lower guide plate and the upper guide plate, the utility model discloses a gas homogenizing chamber is arranged, the dispersive circulation of high-temperature flue gas, thereby effectively improving the uniform effect when the flue gas is heated.

Description

Industrial furnace capable of rapidly heating

Technical Field

The utility model belongs to the technical field of the industrial furnace, concretely relates to but rapid heating up's industrial furnace.

Background

Industrial furnaces, which are a common industrial product, have been widely used in many fields, including electric furnaces, combustion heating furnaces, biomass carbonization furnaces, etc., taking the combustion heating furnace as an example: the inner space of the heating chamber comprises a combustion chamber 1 and a heating chamber 9, when the workpiece is heated, the workpiece is placed in the heating chamber 9, then the combustible fuel is filled into the combustion chamber 1, and after the fuel is combusted, a large amount of heat is generated to heat the heating chamber 9, thereby raising the temperature inside the heating chamber 9, thereby achieving the effect of heating the workpiece, however, in the actual construction of the industrial furnace, the combustion chamber 1 is mostly positioned below the heating chamber 9, so that the bottom of the heating chamber 9 is heated first during the heating process, so that the temperature distribution in the heating chamber 9 is not uniform during the initial heating, which affects the processing effect of the workpiece, in addition, the fuel is not sufficiently combusted in a certain degree during combustion, which affects the utilization rate of the fuel, and the temperature rise rate in the furnace due to insufficient combustion.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but rapid heating's industrial furnace to there is the uneven phenomenon of heating in the current industrial furnace when burning the initial stage to and the insufficient combustion of fuel has the problem that influences the interior programming rate of stove.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a but rapid heating's industrial furnace, includes the furnace body, the inside of furnace body is formed with combustion chamber and heating chamber, and the heating chamber is located the top of combustion chamber, the top welding of combustion chamber has the closing plate, the top and the bottom of heating chamber have welded baffle and lower baffle respectively, the lower baffle is located between baffle and the closing plate, and is formed with even air chamber between lower baffle and the closing plate, the internally mounted of even air chamber has gas return cover and fourth trachea, gas return cover locates the tracheal exit end of fourth, the heating chamber comprises exocoel and inner chamber jointly, and the exocoel is the loop configuration, all seted up a plurality of gas pocket on lower baffle and the upper baffle, and two sets of gas pockets all are connected with the exocoel.

Preferably, a porous plate is embedded in the fourth air pipe, and the porous plate is positioned at the outlet end of the fourth air pipe.

Preferably, the intermediate position department on furnace body top installs the fifth trachea, the fifth trachea runs through the upper guide plate, and the tracheal one end of fifth is located the inside of inner chamber, the combustion chamber comprises first burning chamber and second burning chamber jointly, and first burning chamber is located one side of second burning chamber, all install the combustor on the inner wall of one side of first burning chamber and second burning chamber, and the top and the fourth trachea in first burning chamber are connected, the both sides in second burning chamber are connected with first trachea and second trachea respectively, the tracheal expansion end of second is connected with the fifth trachea.

Preferably, a guide plate is welded inside the fifth air pipe, the section of the guide plate is in an L shape, and the port of the second air pipe is located on one side of the guide plate.

Preferably, the welding has the pre-heater on one side outer wall of furnace body, be connected with the third trachea between pre-heater and the furnace body, and the end of giving vent to anger of pre-heater is connected with first trachea, the internal weld of pre-heater has the baffle, and the both sides of baffle are formed with two preheating chambers respectively.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses set up even air chamber, utilized even air chamber can effectively realize the dispersion circulation of high temperature flue gas, avoided the phenomenon of some appearance excessive contact to even effect when effectively improving the flue gas heating, and even air chamber's even gas principle as follows: the blocking of the gas return cover is utilized to realize the collision and dispersion of the airflow, and the guide inclined plane in the gas return cover is matched to form a guide effect on the dispersed airflow, so that the airflow is uniformly dispersed into the air homogenizing chamber, and the air homogenizing effect is achieved.

(2) The utility model discloses dual combustion chamber has been set up for fuel can be fully combusted in this industrial furnace, effectively improves the utilization ratio of fuel on the one hand, and produced temperature all can act on the heating operation in the stove behind the dual combustion of on the other hand, thereby effectively improves the programming rate in the stove.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural view of a fifth air tube in the present invention;

fig. 4 is a top view of the upper guide plate of the present invention;

FIG. 5 is a top view of the lower guide plate of the present invention;

FIG. 6 is a schematic structural diagram of a preheater according to the present invention;

in the figure: 1-combustion chamber, 2-first air pipe, 3-first combustion chamber, 4-furnace body, 5-second combustion chamber, 6-air homogenizing chamber, 7-lower guide plate, 8-outer chamber, 9-heating chamber, 10-second air pipe, 11-third air pipe, 12-preheater, 13-combustor, 14-sealing plate, 15-gas return cover, 16-inner chamber, 17-upper guide plate, 18-fifth air pipe, 19-perforated plate, 20-fourth air pipe, 21-guide plate, 22-air hole and 23-partition plate.

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.

Referring to fig. 1-6, the present invention provides the following technical solutions: an industrial furnace capable of rapidly heating comprises a furnace body 4, a combustion chamber 1 and a heating chamber 9 are formed inside the furnace body 4, the heating chamber 9 is positioned above the combustion chamber 1, a sealing plate 14 is welded at the top end of the combustion chamber 1, an upper guide plate 17 and a lower guide plate 7 are respectively welded at the top end and the bottom end of the heating chamber 9, the lower guide plate 7 is positioned between the upper guide plate 17 and the sealing plate 14, an air homogenizing chamber 6 is formed between the lower guide plate 7 and the sealing plate 14, an air return cover 15 and a fourth air pipe 20 are installed inside the air homogenizing chamber 6, the air return cover 15 is sleeved at the outlet end of the fourth air pipe 20, an air guide inclined plane is arranged on the inner wall of the air return cover 15 so as to effectively realize the guiding function of air flow, the heating chamber 9 is jointly composed of an outer chamber 8 and an inner chamber 16, the outer chamber 8 is of an annular structure, a plurality of air holes 22 are respectively formed in the lower guide plate, the fuel produces the high temperature flue gas after burning in combustion chamber 1, and the high temperature flue gas passes through fourth trachea 20 and discharges to in even air chamber 6 to reach even gas effect in even air chamber 6, then get into in the exocoel 8 through gas pocket 22 on the lower guide plate 7, thereby form even heating around the inner chamber 16, thereby effectively improve the homogeneity of temperature in the heating chamber 9, and the even gas principle of even air chamber 6 of above-mentioned in-process is as follows: as shown in fig. 2, the high temperature flue gas is guided out from the top end of the fourth air pipe 20, the air flow rushes to the top end inside the gas return cover 15, and is blocked by the top end inside the gas return cover 15 to generate a backflow, the air flow direction of the gas is as shown by an arrow in fig. 2, and the whole air flow forms a dispersed air flow in the process of the above impact, so that the dispersed air flow is uniformly distributed into the gas homogenizing chamber 6, and meanwhile, the air holes 22 connected with the gas homogenizing chamber 6 are also uniformly distributed in a manner of an annular array, so that the high temperature flue gas can be effectively ensured to uniformly enter the outer chamber 8.

In this embodiment, preferably, a porous plate 19 is embedded inside the fourth air tube 20, the porous plate 19 is located at the position of the outlet end of the fourth air tube 20, and by means of the arrangement of the porous plate 19, the air flow forms preliminary homogenization when being led out of the fourth air tube 20, and the effect of reducing the impulse force of the air flow is achieved.

In this embodiment, preferably, a fifth air pipe 18 is installed at a middle position of a top end of the furnace body 4, the fifth air pipe 18 penetrates through the upper guide plate 17, one end of the fifth air pipe 18 is located inside the inner cavity 16, the combustion chamber 1 is composed of the first combustion chamber 3 and the second combustion chamber 5, the first combustion chamber 3 is located at one side of the second combustion chamber 5, the inner walls of one sides of the first combustion chamber 3 and the second combustion chamber 5 are both provided with the burner 13, the top end of the first combustion chamber 3 is connected with the fourth air pipe 20, two sides of the second combustion chamber 5 are respectively connected with the first air pipe 2 and the second air pipe 10, the movable end of the second air pipe 10 is connected with the fifth air pipe 18, the first combustion chamber 3 is used for realizing primary combustion of fuel, the heating chamber 9 is heated after the combustion, and the second combustion chamber 5 carries out secondary combustion on flue gas after the combustion, so that the fuel can be sufficiently combusted on the one hand, on the other hand, the heating chamber 9 can be heated secondarily by using the heat of the secondary combustion, so that the purpose of increasing the temperature rising speed of the heating chamber 9 is achieved, and the secondary combustion heating process is as follows: the flue gas after the primary combustion heats the heating chamber 9 and then flows back to the second combustion chamber 5 through the first air pipe 2, at the moment, combustion-supporting air is introduced into a combustor 13 in the second combustion chamber 5 and ignited, so that secondary combustion is formed, the secondary flue gas after the combustion is guided to a fifth air pipe 18 through a second air pipe 10, one end of the fifth air pipe 18 is positioned in an inner cavity 16, so that the temperature in the inner cavity 16 is further raised, and the effect of rapid temperature rise is effectively achieved by matching with the primary heating.

In this embodiment, preferably, a guide plate 21 is welded inside the fifth air pipe 18, the cross-sectional shape of the guide plate 21 is L-shaped, a port of the second air pipe 10 is located on one side of the guide plate 21, the secondary flue gas forms a blocking guide flow through the guide plate 21 when being introduced into the fifth air pipe 18, and the airflow direction of the secondary flue gas is as shown in fig. 3, enters from the second air pipe 10, flows downwards on one side of the guide plate 21, and then flows upwards through the bottom end of the guide plate 21, so that on one hand, both sides of the fifth air pipe 18 can form a heating effect, and on the other hand, the flue gas after secondary combustion can be discharged through the fifth air pipe.

In this embodiment, it is preferable, the welding has preheater 12 on the outer wall of one side of furnace body 4, be connected with third trachea 11 between preheater 12 and the furnace body 4, and the end of giving vent to anger of preheater 12 is connected with first trachea 2, the inside welding of preheater 12 has baffle 23, and the both sides of baffle 23 are formed with two preheating chambers respectively, the preheating of combustion air and gas is realized respectively in above-mentioned two preheating chambers, thereby effectively improve the leading-in temperature of combustion air and gas, in order to reach the effect of fast combustion, and one side in two preheating chambers all is connected with the intake pipe, be used for realizing the introduction of combustion air and gas respectively.

The utility model discloses a theory of operation and use flow: when the utility model is used, a workpiece to be heated is placed in the inner cavity 16 of the heating chamber 9, then the whole furnace body 4 is sealed, the intake pipe on one side of the preheater 12 is utilized to realize the introduction of combustion air and fuel gas, the gas enters the first combustion cavity 3 through the preheater 12 and forms combustion under the ignition action of the combustor 13, the high-temperature flue gas generated after the combustion is discharged into the gas homogenizing chamber 6 through the fourth air pipe 20, the porous plate 19 and the gas return cover 15 are utilized to realize the gas homogenizing operation of the high-temperature flue gas in the process, the air flow entering the gas homogenizing chamber 6 passes through the air holes 22 on the lower guide plate 7 to enter the outer cavity 8, and the heating operation on the inner cavity 16 is realized in the outer cavity 8, thereby the heating treatment of the workpiece in the inner cavity 16 is realized, along with the continuous entering of the air flow in the outer cavity 8, the flue gas at the top is discharged into the third air pipe 11 through the air holes 22 on the, therefore, the airflow circularly flows into the preheater 12, the heat exchange effect is generated between the continuously introduced combustion air and the gas and the circulated airflow, the preheating operation of the preheater 12 is realized, the time sealing of the two preheating cavities is ensured by using the partition plate 23, the circulated airflow flows into the second combustion cavity 5 through the first air pipe 2 after heat exchange, secondary combustion is formed in the second combustion cavity 5, the temperature of the gas is increased again after the secondary combustion, the gas is introduced into the fifth air pipe 18 through the second air pipe 10, the baffle plate 21 in the fifth air pipe 18 is used for forming the blocking and flow guiding effect, one side generates secondary heating on the inner cavity 16, and on the other side, the flue gas after the multiple combustion is discharged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a but rapid heating's industrial furnace, includes furnace body (4), the inside of furnace body (4) is formed with combustion chamber (1) and heating chamber (9), and heating chamber (9) are located the top of combustion chamber (1), its characterized in that: the top welding of combustion chamber (1) has closing plate (14), the top and the bottom of heating chamber (9) have welded upper guide plate (17) and lower baffle (7) respectively, lower baffle (7) are located between upper guide plate (17) and closing plate (14), and are formed with even air chamber (6) down between baffle (7) and closing plate (14), the internally mounted of even air chamber (6) has gas return cover (15) and fourth trachea (20), the exit end of fourth trachea (20) is located to gas return cover (15) cover, heating chamber (9) comprise outer chamber (8) and inner chamber (16) jointly, and outer chamber (8) are the loop configuration, all seted up a plurality of gas pocket (22) on lower baffle (7) and upper guide plate (17), and two sets of gas pocket (22) all are connected with outer chamber (8).

2. A rapid thermal increase industrial furnace according to claim 1, wherein: the inside embedding of fourth trachea (20) has perforated plate (19), perforated plate (19) are located the position department of fourth trachea (20) exit end.

3. A rapid thermal increase industrial furnace according to claim 1, wherein: the utility model discloses a fire-fighting stove, including furnace body (4), intermediate position department on top installs fifth trachea (18), fifth trachea (18) run through upper guide plate (17), and the one end of fifth trachea (18) is located the inside of inner chamber (16), combustion chamber (1) comprises first combustion chamber (3) and second combustion chamber (5) jointly, and just first combustion chamber (3) are located one side of second combustion chamber (5), all install combustor (13) on the inner wall of one side of first combustion chamber (3) and second combustion chamber (5), and the top and fourth trachea (20) of first combustion chamber (3) are connected, the both sides of second combustion chamber (5) are connected with first trachea (2) and second trachea (10) respectively, the expansion end and the fifth trachea (18) of second trachea (10) are connected.

4. A rapid thermal increase industrial furnace according to claim 3, wherein: a guide plate (21) is welded in the fifth air pipe (18), the section of the guide plate (21) is L-shaped, and the port of the second air pipe (10) is positioned on one side of the guide plate (21).

5. A rapid thermal increase industrial furnace according to claim 3, wherein: the utility model discloses a preheating furnace, including furnace body (4), preheater (12) has been welded on one side outer wall of furnace body (4), be connected with third trachea (11) between preheater (12) and furnace body (4), and the end of giving vent to anger of preheater (12) is connected with first trachea (2), the inside welding of preheater (12) has baffle (23), and the both sides of baffle (23) are formed with two preheating chambers respectively.