CN217541526U - Hot blast stove structure with flashback chamber - Google Patents

Abstract

The utility model discloses a hot-blast furnace structure with flashback chamber, which comprises an outer shell, the combustor is installed to the one end of shell, the other end of shell is provided with the outlet flue, the inside of shell is close to combustor department and is provided with furnace, one side that furnace kept away from the combustor is provided with the ripple stove courage, one side that furnace was kept away from to the ripple stove courage is provided with the flashback chamber, the flashback chamber is connected with the smoke chamber through the second return stroke, the smoke chamber passes through the third return stroke and is connected with the outlet flue, in this hot-blast furnace structure with flashback chamber, through the design of flashback chamber, furnace's radiant heating area has been increased, reduce boiler NOx and discharge, and through the flashback chamber, the second return stroke, the structural design of third return stroke, guarantee that the flue gas is accessible baffling, guarantee that the flue gas carries out after fully absorbing heat, reduce the energy waste, and can reduce the boiler volume, guarantee expend with cold and contract with cold through adopting ripple stove courage effective absorption heat, the boiler uses safelyr.

Description

Hot blast stove structure with flashback chamber

Technical Field

The utility model relates to the technical field of boilers, specifically speaking relates to a hot-blast stove structure with flashback chamber.

Background

Because of the characteristics of the process, the working procedure or the articles, hot air drying or heating is needed, while the traditional electric heat source or steam heat power is usually provided with a plurality of sets of auxiliary equipment in the conveying process, and is directly or indirectly converted into hot air for drying or heating operation. The process obviously has the defects of large energy waste, excessive accessory equipment, complex process and the like. Through practice, in the hot blast stove, the heat utilization rate and the thermal working effect can be improved greatly by using hot blast as a medium and a carrier, the heat transfer efficiency is high, the energy-saving effect is remarkable, disposable energy can be saved, the process can be strengthened, and the production capacity is remarkably improved.

The patent publication No. CN203177453U discloses a vertical coal-fired hot-air furnace with wind induced draft, the outer side of the vertical furnace body is provided with a jacket, the outer wall of the furnace body is provided with fins, a heat exchange device in the furnace cavity is provided with a hollow plate transverse baffle plate above the furnace cavity and two hollow plate baffle vertical plates above the hollow baffle plate, the inner wall of each hollow plate is provided with fins, the inner cavity of each hollow plate is communicated with the jacket, a smoke exhaust port at the upper end of the furnace body is connected with a smoke exhaust pipe, the side surface of the smoke exhaust pipe is provided with an air inlet, the side wall in a fan smoke exhaust circular pipe is provided with an upward air outlet, the axis of the upward air outlet is parallel to the axis of the smoke exhaust pipe, the upper end of the furnace body is provided with a fan, and the outlet of the fan is connected with the air inlet at the side surface of the smoke exhaust pipe. The heat exchange device in the hearth of the vertical coal-fired hot-air furnace with the wind induced draft is characterized in that a hollow plate transverse baffle and a hollow plate baffle vertical plate are arranged above a grate and are easily welded in the hearth; the draught fan at the smoke outlet generates negative pressure induced air in the hearth by an air blowing method, high-temperature smoke cannot enter the draught fan, and the service life of the draught fan is not influenced.

Although the technical scheme adopts the blast method to generate negative pressure induced air in the hearth, high-temperature flue gas cannot enter the induced air machine, the service life of the induced air machine is not influenced, the flue gas of the hot blast stove is not fully combusted when being discharged, so that a lot of harmful gas is contained, energy waste is also caused, a pipeline in the hot blast stove is short, sufficient heat absorption cannot be ensured, a large amount of heat is contained when being discharged, and the energy waste is also easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hot-blast stove structure with flashback chamber to solve the problem that proposes among the above-mentioned background art.

In order to realize the above object, the utility model provides a hot-blast furnace structure with flashback chamber, which comprises an outer shell, the combustor is installed to the one end of shell, the other end of shell is provided with the outlet flue, the inside of shell is close to combustor department and is provided with furnace, one side that furnace kept away from the combustor is provided with the ripple stove courage, one side that furnace was kept away from to the ripple stove courage is provided with the flashback chamber, the flashback chamber is connected with the smoke chamber through the second return stroke, the smoke chamber passes through the third return stroke and is connected with the outlet flue.

Preferably, the outer wall of one end of the shell is provided with an air inlet, and the outer wall of the other end of the shell is provided with an air outlet.

Preferably, the outer end of the shell is provided with an explosion-proof door.

Preferably, the outer wall of the top of the shell is provided with a plurality of lifting lugs.

Preferably, the outer wall of the hearth is provided with a refractory layer.

Preferably, a base is mounted at the bottom of the housing.

Preferably, the inner wall of the shell is provided with an insulating layer.

Preferably, the second return stroke and the third return stroke are arranged in a ring shape at equal intervals, and the third return stroke is positioned at the outer side of the second return stroke.

Compared with the prior art, the beneficial effects of the utility model are that:

in this hot-blast stove structure with after-combustion chamber, through the design of after-combustion chamber, increased furnace's radiant heating area, reduce boiler NOx and discharge, and through the structural design of after-combustion chamber, second return stroke, third return stroke, guarantee that the flue gas is accessible baffling, guarantee that the flue gas carries out discharge after abundant heat absorption, it is extravagant to reduce the energy, and can reduce the boiler volume, guarantees expend with heat and contract with cold through adopting the effective heat absorption heat of ripple stove courage, and the boiler uses safelyr.

Drawings

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

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic top view of the present invention.

The various reference numbers in the figures mean:

1. a housing; 11. an air inlet; 12. an air outlet; 13. a smoke outlet; 14. lifting lugs; 15. a heat-insulating layer; 16. a base; 2. an explosion vent; 3. a burner; 4. a hearth; 41. a refractory layer; 5. a corrugated furnace pipe; 6. a flashback chamber; 7. a second backhaul; 8. a smoking room; 9. and a third backhaul.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the definitions of "first", "second" and "third" features may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

The utility model provides a hot-blast furnace structure with flashback chamber, as shown in fig. 1-fig. 3, wherein the arrow in fig. 1 is flue gas flow direction, the arrow in fig. 2 and fig. 3 is air flow direction, including shell 1, combustor 3 is installed to the one end of shell 1, be used for sending fuel to ignite the burning, the other end of shell 1 is provided with outlet flue 13, outlet flue 13 adopts the back row design, it directly exerts on shell 1 to have avoided chimney weight, be used for the flue gas to discharge, the inside of shell 1 is close to combustor 3 department and is provided with furnace 4, be used for burning fuel, one side that combustor 3 was kept away from to furnace 4 is provided with ripple stove courage 5, one side that furnace 4 was kept away from to ripple stove courage 5 is provided with flashback chamber 6, furnace, ripple stove courage 5 and flashback chamber 6 are first flashback chamber, guarantee that the flue gas fully burns, flashback chamber 6 is connected with smoke chamber 8 through second backhaul 7, be used for the flue gas to discharge, smoke chamber 8 is connected with outlet flue gas outlet 13 through third backhaul 9, second backhaul screw thread 7 and third return stroke tobacco pipe constitute.

In this embodiment, an air inlet 11 is provided on an outer wall of one end of the housing 1 for introducing hot air, and an air outlet 12 is provided on an outer wall of the other end of the housing 1 for discharging heated hot air to be used by external heat equipment.

Specifically, explosion vent 2 is installed to the outer end of shell 1, plays fine explosion-proof effect.

Furthermore, a plurality of lifting lugs 14 are installed on the outer wall of the top of the shell 1, and the lifting is convenient.

Furthermore, the outer wall of the hearth 4 is provided with a fireproof layer 41, so that a good fireproof effect is achieved.

Further, a base 16 is installed at the bottom of the housing 1 to ensure the stability of the bottom of the device.

It is noted that the burner 3 of the device can be controlled in a constant temperature mode through a temperature control instrument, when the temperature of hot air reaches a rated upper limit temperature, the burner 3 can be automatically stopped or automatically switched to small flame combustion, and when the temperature is reduced to the rated lower limit temperature, the burner 3 can be automatically ignited to run or be switched to big flame combustion.

Example 2

In order to further ensure the full utilization of heat, the inner wall of the shell 1 is provided with a heat-insulating layer 15, so that the heat cannot be dissipated, and the surface temperature of the boiler is low.

Furthermore, the second return stroke 7 and the third return stroke 9 are arranged in an annular equal-interval mode, the third return stroke 9 is located on the outer side of the second return stroke 7, it is guaranteed that the contact area between hot air and high-temperature flue gas in the second return stroke 7 and the third return stroke 9 is large, it is guaranteed that the hot air is heated up quickly, and the heat efficiency is high.

The utility model discloses a hot-blast furnace structure with flashback chamber is when using, at first adopts the natural gas to pass through 3 pressure-fired in furnace 4 burning of combustor, produces the high temperature flue gas, is the first return stroke by the whole inner space of the straight furnace courage combination in wave form stove courage 5 and the furnace 4, and the flue gas is through flashback chamber 6, baffling 180 degrees gets into the second return stroke 7 that comprises the screw thread tobacco pipe, turns 180 degrees again and gets into third return stroke 8, after the abundant heat absorption of screw thread tobacco pipe, gets into the chimney atmosphere by outlet 13; clean air enters the shell 1 from the air inlet 11, and is subjected to heat exchange with the second return 7, the first return and the wall of the hearth 4 in an enhanced manner, so that the heat of high-temperature flue gas is transferred to the heated air, and the heated air is subjected to heat absorption and temperature rise and then is sent to a heat utilization place by the induced draft fan; the flue gas and the air to be heated respectively pass through the channels, and the heating is absolutely pollution-free.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a hot-blast furnace structure with after combustion chamber, includes shell (1), its characterized in that: combustor (3) are installed to the one end of shell (1), the other end of shell (1) is provided with outlet flue (13), the inside of shell (1) is close to combustor (3) and locates to be provided with furnace (4), one side that combustor (3) were kept away from in furnace (4) is provided with ripple stove courage (5), one side that furnace (4) were kept away from in ripple stove courage (5) is provided with back combustion chamber (6), back combustion chamber (6) are connected with smoke chamber (8) through second return stroke (7), smoke chamber (8) are connected with outlet flue (13) through third return stroke (9).

2. The structure of the hot blast stove with the flashback chamber as set forth in claim 1, wherein: an air inlet (11) is formed in the outer wall of one end of the shell (1), and an air outlet (12) is formed in the outer wall of the other end of the shell (1).

3. The structure of the hot blast stove with the flashback chamber as set forth in claim 1, wherein: an explosion vent (2) is installed at the outer end of the shell (1).

4. The structure of the hot blast stove with the flashback chamber as set forth in claim 1, wherein: the outer wall of the top of the shell (1) is provided with a plurality of lifting lugs (14).

5. The structure of the hot blast stove with the flashback chamber as set forth in claim 1, wherein: and a refractory layer (41) is arranged on the outer wall of the hearth (4).

6. The structure of the hot blast stove with the flashback chamber as set forth in claim 1, wherein: the bottom of the shell (1) is provided with a base (16).

7. The structure of the hot blast stove with the flashback chamber as set forth in claim 1, wherein: and the inner wall of the shell (1) is provided with a heat-insulating layer (15).

8. The structure of the hot blast stove with the flashback chamber as set forth in claim 1, wherein: the second return stroke (7) and the third return stroke (9) are arranged in an annular and equidistant mode, and the third return stroke (9) is located on the outer side of the second return stroke (7).

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