CN218379382U - Low energy consumption combustion furnace - Google Patents

Abstract

The application discloses fire burning furnace with low power consumption, its stove inner chamber outer wall is equipped with water conservancy diversion chamber and backheat chamber, and the water conservancy diversion chamber sets up between backheat chamber and stove inner chamber, is equipped with backheating gas pocket on the stove inner chamber, backheat gas pocket with backheat the chamber intercommunication, the combustion chamber is connected at the furnace lower extreme, the water conservancy diversion chamber passes through the outlet duct do the combustion chamber air feed, the water conservancy diversion chamber still is connected with the air supply pipe through the water conservancy diversion ring, the water conservancy diversion ring with form the water conservancy diversion passageway between the air supply pipe, the backheat chamber passes through the water conservancy diversion passageway with water conservancy diversion chamber intercommunication adopts the mode of steam backward flow to reduce the heat and scatters and disappears, and the steam that flows back to the backheat chamber has great heat, with the heat cooperation of stove inner chamber, can be heated for the air that enters into the water conservancy diversion intracavity warms up fast, and the air after preheating enters into the combustion chamber and mixes with gaseous fuel, and heaies up fast, and the required time of burning is short, can solve the inhomogeneous, unstable problem that low temperature arouses, is favorable to reducing the loss of the energy.

Description

Low energy consumption combustion furnace

Technical Field

The utility model belongs to the technical field of the burning kitchen range, concretely relates to low power consumption fires burning furnace.

Background

The combustion furnace is a device for direct-fired heating by using gas fuel such as liquefied petroleum gas (liquid), artificial gas, natural gas and the like. The traditional combustion furnace generally adopts diffusion mixed combustion, namely gas and air are directly input into a combustion chamber of the combustion chamber to be mixed and combusted, the flame generated during combustion is longer, the combustion is unstable, the flame temperature is relatively lower, the diffusion flame does not move, the mixing of gas fuel and air is carried out at a gas fuel nozzle, and the phenomenon of backfire does not occur in the combustion process. However, the disadvantage of this combustion method is that the air and the gas fuel are mixed unevenly, so that the gas fuel cannot be completely combusted, and the combustion furnace easily discharges various pollutants such as gas fuel and intermediate products (such as CO) when in use. Moreover, the ignition temperature of the diffusion hybrid combustion is the lowest temperature of spontaneous combustion at which the mixture of the gaseous fuel and the air starts to undergo a combustion reaction, and when the temperature of the air introduced into the combustion chamber is too low, the mixture of the gaseous fuel and the air is likely to have a low temperature, the temperature rise is slow, the time required for combustion is long, and the combustion is not uniform and stable, so that the energy consumption of the combustion furnace is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the problem that above-mentioned prior art exists, provide low power consumption and fired burning furnace.

In order to achieve the purpose, the utility model adopts the following technical measures:

the low-energy-consumption combustion furnace comprises a furnace chamber and a combustion chamber, wherein the furnace chamber comprises a furnace inner chamber and a furnace chamber shell, a guide chamber and a heat regeneration chamber are arranged on the outer wall of the furnace inner chamber, the guide chamber is arranged between the heat regeneration chamber and the furnace inner chamber, a heat regeneration air hole is formed in the furnace inner chamber and communicated with the heat regeneration chamber, the combustion chamber is connected to the lower end of the furnace chamber, the guide chamber supplies air to the combustion chamber through an air outlet pipe, the guide chamber is further connected with an air supply pipe through a guide ring, a guide channel is formed between the guide ring and the air supply pipe, and the heat regeneration chamber is communicated with the guide chamber through the guide channel.

Preferably, a return pipe is arranged on the return air hole, and the return pipe penetrates through the diversion cavity and extends into the heat regeneration cavity.

Preferably, a heat collecting reflection sheet is provided on the periphery of the return air hole.

Preferably, the combustion chamber comprises a combustion inner chamber and an air supply outer chamber, the side wall of the combustion inner chamber is provided with vent holes, the air supply outer chamber is communicated with the combustion inner chamber through the vent holes, and the air outlet pipe is communicated with the air supply outer chamber.

Preferably, the aperture of the guide ring is larger than the pipe diameter of the air supply pipe, at least two locking screws are mounted on the side wall of the guide ring, and the air supply pipe penetrates through the guide ring and is fixed through the locking screws.

Preferably, a partition plate is arranged in the diversion cavity and blocks the shortest path between the air outlet pipe and the air supply pipe.

Preferably, the diversion cavity and the regenerative cavity are separated by a separating disc, the separating disc is connected to the lower part of the furnace inner chamber, a through hole is formed in the separating disc, the return pipe penetrates through the through hole, and the through hole is in sealing connection with the return pipe.

Preferably, the outer walls of the hearth shell and the combustion chamber of the air outlet pipe are covered with heat insulation layers.

Preferably, n guide plates are arranged in the guide cavity, and the guide plates divide the guide cavity into n +1 communicated circulation spaces.

Preferably, the top of the combustion inner chamber is provided with a flame homogenizing plate, and flame homogenizing strips of the flame homogenizing plate are divergently arranged from the center to the periphery.

The beneficial effects of the utility model reside in that:

1. the utility model provides a fire burning furnace adopts the mode of steam backward flow to reduce the heat and scatters and disappears, the steam that flows back to the backheat chamber has great heat, with the heat cooperation of stove inner chamber, can be so that water conservancy diversion chamber both sides are heated, make the air that enters into the water conservancy diversion intracavity heat up fast, the air after preheating enters into combustion chamber and gas fuel mixture, it is fast to heat up, the required time of burning is short, can solve the inhomogeneous, the unstable problem of burning that the low temperature arouses, be favorable to reducing the loss of the energy.

2. The hot gas that this application was fired burning furnace and was produced can flow back to backheat the chamber, reduces the emission of multiple pollutants such as gaseous fuel and intermediate product (like CO), and the hot gas that backheat the intracavity can flow into water conservancy diversion chamber through the water conservancy diversion passageway and air intensive mixing, and the reburning flows to the combustion chamber again, promotes the combustion effect of fuel, further reaches emission reduction energy-saving effect.

3. The utility model provides a water conservancy diversion passageway pass through the water conservancy diversion ring with the air supply pipe cooperation forms, and the air supply pipe is concentrated gas transmission to the water conservancy diversion chamber for the intra-annular air velocity of water conservancy diversion accelerates, then the atmospheric pressure of water conservancy diversion ring week side reduces fast, makes the heat of backheating intracavity gather to the water conservancy diversion ring fast, thereby flows into water conservancy diversion chamber and air mixing fast along with the air current.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a low energy consumption combustion furnace according to the present invention;

FIG. 2 is an exploded view of a first embodiment of the low energy consumption combustion furnace of the present invention;

fig. 3 is an exploded view of a furnace chamber of a first embodiment of the low energy consumption combustion furnace of the present invention;

FIG. 4 is a schematic view of the connection between the furnace chamber and the partition plate of the first embodiment of the low energy consumption combustion furnace of the present invention;

FIG. 5 is a structural diagram of a flame homogenizing plate of a first embodiment of the low energy consumption combustion furnace of the present invention;

fig. 6 is a schematic view illustrating the connection between the baffle ring and the air supply pipe according to the first embodiment of the low energy consumption combustion furnace of the present invention;

FIG. 7 is a schematic view of the partition plate of the first embodiment of the low energy consumption combustion furnace of the present invention

FIG. 8 is a schematic structural diagram of a second embodiment of the low energy consumption combustion furnace of the present invention;

fig. 9 is an exploded view of the furnace chamber of the second embodiment of the low energy consumption combustion furnace of the present invention;

fig. 10 is a schematic structural view of a baffle chamber in some embodiments of a second embodiment of the low energy consumption combustion furnace of the present invention;

fig. 11 is a schematic structural view of a flow guide cavity of a third embodiment of the low energy consumption combustion furnace of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection, electrical connection and communication connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1 to 6, a low energy consumption combustion furnace includes a furnace chamber 1 and a combustion chamber 2, the furnace chamber 1 includes a furnace chamber 11 and a furnace chamber housing 12, the furnace chamber 11 is installed at an opening at a top of the furnace chamber housing 12, a combustion channel at a bottom of the furnace chamber 11 extends to an opening at a bottom of the furnace chamber housing 12, the combustion chamber 2 is connected to a bottom of the furnace chamber housing 12, an inner cavity of the combustion chamber 2 faces the combustion channel, a diversion chamber 13 and a regenerative chamber 14 are surrounded by an outer wall of the furnace chamber 11, the diversion chamber 13 and a backflow chamber 14 are disposed in the furnace chamber housing 12, the diversion chamber 13 is disposed between the regenerative chamber 14 and the furnace chamber 11, a regenerative air vent 15 is disposed on the furnace chamber 11, the diversion chamber 15 is communicated with the regenerative chamber 14, hot air in the furnace chamber 11 can flow back to the regenerative chamber 14 through the air vent 15, so that a heat preservation effect of the furnace chamber can be improved, the diversion chamber 13 is the combustion chamber 2 through an air supply pipe 3, the diversion chamber 13 is further connected with the diversion ring 5, a fan is connected with the air supply pipe 4, the air supply pipe 4 connects the air supply pipe and the diversion chamber 13 with the regenerative chamber 11, so that the air can not extend the temperature of the furnace chamber 11 to the furnace chamber 11, and the temperature of the furnace can be increased so that the temperature of the furnace can be increased.

When the gas supply pipe 4 supplies gas to the flow guide cavity 13 under the action of a fan, the gas flow speed at the pipe orifice of the gas supply pipe 4 is high, so that the pressure in the flow guide ring 5 is reduced, the pressure in the heat return cavity 14 is higher than the pressure in the flow guide ring 5, the hot gas flows into the flow guide cavity 13 from a flow guide channel between the flow guide ring 5 and the gas supply pipe 4, the low-temperature air input by the gas supply pipe 4 is fully mixed with the hot gas and absorbs the heat in the flow guide cavity 13, the temperature is increased, and the hot gas is taken as the combustion chamber 2 through the gas outlet pipe 3; when the air supply pipe 4 does not supply air, the pressure in the guide cavity 13 is smaller than the pressure in the regenerative cavity 14, and hot air flows into the guide cavity 13 from the guide channel, so that the heat utilization rate is greatly improved, and the purpose of energy conservation is achieved.

It is worth to be noted that the incompletely combusted gas fuel and the intermediate products (such as CO) contained in the hot gas can be uniformly mixed with the air in the backflow process and then input into the combustion chamber 2 for combustion, and the mixed gas input into the combustion chamber 2 is higher in temperature and mixed with the gas fuel in the combustion chamber 2, so that the temperature can be rapidly increased to a fire point under the clamping of the ignition needle 7 or the ignition seeds 8, the combustion stability is better, the energy loss can be reduced, and the gas pollution can be reduced.

In detail, in this embodiment, a plurality of backflow air holes 15 are formed in the furnace chamber 11, the plurality of backflow air holes 15 are annularly arranged, a backflow pipe 16 is arranged on the backflow air hole 15, and the backflow pipe 16 penetrates through the diversion cavity 13 and extends into the heat recovery cavity 14. The return pipe 16 may be tightly connected to the return air hole 15 or may be integrally formed with the return air hole 15, and the return air hole 15 is provided in a wall of the furnace bore 11.

The diversion cavity 13 and the regenerative cavity 14 are separated by a separating disc 17, the separating disc 17 is connected to the lower part of the furnace inner chamber 11, a through hole is formed in the separating disc 17, the return pipe 16 penetrates through the through hole, and the through hole is hermetically connected with the return pipe 16, and the through hole can be welded or in interference fit. And a backflow limiting disc 18 is covered on the outer side of the separating disc 17, so that the regenerative cavity 14 is formed on the outer side of the separating disc 17, and the diversion cavity 13 and the regenerative cavity 14 are annular spaces. In order to prevent the pressure of the regenerative cavity 14 from being too high, the regenerative cavity 14 may further be connected to a pressure relief channel, the pressure relief channel is provided with a pressure relief valve, and the pressure relief channel is disposed on the backflow limiting disc 18.

In order to extend the flowing path of the hot gas and the air, improve the heat exchange degree, and ensure that the mixed gas flowing out of the diversion cavity 13 has higher heat, a partition plate 131 is arranged in the diversion cavity 13, and the partition plate 131 blocks the shortest path between the air outlet pipe 3 and the air supply pipe 4, so that the air entering the diversion cavity 13 passes through the diversion cavity 13 and then is output from the air outlet pipe 3.

In order to further ensure the heat utilization effect, the heat collecting and reflecting sheet 6 is provided on the circumferential side of each of the return air holes 15. The heat-gathering reflective sheet 6 is a metal sheet with the thickness of 5-8mm, the metal sheet can be a stainless steel sheet, a red copper sheet, an iron alloy steel plate and the like, the heat-gathering reflective sheet 6 is at least arranged on one side of the backflow air holes 15, and the inclination angle of the heat-gathering reflective sheet 6 is 35-60 degrees. Specifically, in this embodiment, gather heat reflector plate 6 and set up in the upper and lower both sides of backheating gas pocket 15, the light of a fire of burning in stove inner chamber 11 is through the reflection of light of gathering heat reflector plate 6 of slope, upwards reflects heat energy, focuses on the pan, can reduce like this the temperature of stove inner chamber 11 makes the energy maximize that the pan obtained to improve heat utilization efficiency, reduce the loss of the energy.

The combustion chamber 2 is including burning inner chamber 21 and air feed outer chamber 22, air vent 23 has been laid to burning inner chamber 21 lateral wall, burning inner chamber 21 passes through the detachable installation of screw at air feed outer chamber 22 port, air feed outer chamber 22 passes through air vent 23 intercommunication burning inner chamber 21, 3 intercommunications of outlet duct air feed outer chamber 22. An ignition needle 7, an ignition seed 8 and a fuel gas supply pipeline 9 are arranged in the combustion inner chamber 21. The mixed gas flows into the gas supply outer chamber 22 through the gas outlet pipe 3 and then uniformly permeates into the combustion inner chamber 21 through the vent holes 23 on the peripheral side of the combustion inner chamber 21, so that the uniform mixing of gas fuel and the mixed gas is facilitated, and the optimal combustion effect is ensured.

Further explanation, in this embodiment, be equipped with inlet line connector and the pipeline connector of giving vent to anger on the partition plate 17, install on the pipeline connector of giving vent to anger outlet duct 3, 5 fixed mounting of water conservancy diversion ring are in the inlet line connector can adopt welding or screw fixed connection, the aperture of water conservancy diversion ring 5 is greater than the pipe diameter of air supply pipe 4, two piece at least locking screws 51 are installed to the lateral wall of water conservancy diversion ring 5, air supply pipe 4 passes water conservancy diversion ring 5 is fixed through locking screws 51, the water conservancy diversion passageway form in between water conservancy diversion ring 5 inner wall and the air supply pipe 4 outer wall.

In order to further reduce energy consumption, the outer walls of the hearth shell 12 and the gas outlet pipe 3 of the combustion chamber 2 are covered with heat preservation layers (not shown), the heat preservation layers are made of heat preservation mud, heat loss of the hearth 1, the gas outlet pipe 3 and the combustion chamber 2 can be reduced, and a good heat preservation effect is achieved.

The top of the combustion inner chamber 21 is provided with a flame homogenizing plate 7, flame homogenizing strips of the flame homogenizing plate 7 are arranged from the center to the periphery in a dispersing mode, and flames generated in the combustion inner chamber 21 can be uniformly dispersed by the flame homogenizing plate 7 to enter a combustion cavity of the furnace inner chamber 11, so that the best energy-saving combustion effect is achieved.

The second embodiment:

referring to fig. 8 to 10, the low power consumption combustion furnace disclosed in this embodiment is different from the first embodiment in that: the guide cavity 13 and the regenerative cavity 14 are arranged on the outer wall of the bottom of the furnace inner chamber 11, the regenerative cavity 14 is arranged below the return air hole 15 and communicated with the return air hole 15, the guide cavity 13 surrounds a combustion channel at the bottom of the furnace inner chamber 11, and the regenerative cavity 14 is annularly arranged on the periphery of the heat conduction cavity 13.

In this embodiment, the diversion cavity 13 and the regenerative cavity 14 are separated by a separating disc 17, the separating disc 17 is connected to the lower portion of the furnace chamber 11, the separating disc 17 is a cylindrical structure and is arranged in a backflow limiting disc 18, so that the regenerative cavity 14 is formed outside the separating disc 17, a communication hole opposite to the combustion channel is formed in the backflow limiting disc 18, the combustion channel at the bottom of the furnace chamber 11 is connected with the backflow limiting disc 18, and the diversion cavity 13 is formed in the outer wall of the combustion channel and the separating disc 17.

The difference between this embodiment and the above embodiments is that the separating plate 17 is not provided with a through hole, the hot air can directly flow into the return cavity 14 through the hot air return hole 15, and the hot air return hole 15 may or may not be connected with a return pipe.

In addition, in some embodiments, an air pump may be connected to the air outlet pipe 3, and the air pump accelerates the circulation of the air.

In some embodiments, in order to better enable the air entering the diversion cavity 13 to be more fully mixed and improve the temperature of the air flowing through the diversion cavity 13, n diversion plates 132 are further arranged in the diversion cavity 13, because the partition plates 131 are arranged in the diversion cavity 13, and the n diversion plates 132 are arranged in a vertically staggered manner, the diversion cavity 13 is divided into n +1 communicated circulation spaces, the inner sides of the partition plates 131 and the diversion plates 132 can be abutted against the outer wall of the combustion channel at the bottom of the furnace chamber 11, the air supply pipe 4 and the air outlet pipe 3 are respectively connected in the circulation spaces at the two sides of the partition plates 131, the air and the hot air entering the diversion cavity 13 need to flow through the n diversion plates 132 and then are discharged from the air outlet pipe 3, the flow path of the air flow can be prolonged, the heat exchange effect is improved, and the temperature of the furnace chamber 11 can be reduced.

The deflector 132 may be disposed vertically or obliquely, and the flow path of the airflow in the deflector cavity 13 is curved and undulated.

It should be noted that, except for the above-mentioned technical features, other technical features of the low-power-consumption combustion furnace of the present embodiment may be the same as or substantially the same as those of the above-mentioned embodiment, and therefore, further description is not provided.

Example three:

referring to fig. 11, the low power consumption combustion furnace disclosed in this embodiment is different from the second embodiment in that: the baffle is not arranged in the diversion cavity 13, the baffle 131 is of a spiral structure, the baffle 131 rises to the top of the diversion cavity 13 from the bottom of the diversion cavity 13 in a spiral mode, the inner side of the baffle 131 can be abutted against the outer wall of a combustion channel at the bottom of the furnace hearth 11, the air inlet pipeline connecting port and the air outlet pipeline connecting port are respectively arranged at the top and the bottom of the partition plate 17, the air inlet pipeline connecting port and the air outlet pipeline connecting port are separated through the baffle 131, air entering from the air inlet pipeline connecting port forms a rotational flow after being guided by the baffle 131, hot air and air can be fully mixed, and the flowing path of the air is prolonged.

The low energy consumption combustion furnace of the present embodiment may have the same or substantially the same technical features as those of the above embodiment except for the above-mentioned difference technical features, and therefore, further description thereof will not be provided.

To sum up, the utility model discloses a mode that fires burning furnace adoption steam backward flow of the application reduces the heat and scatters and disappears, the steam that flows back to the backheating chamber has great heat, with the heat cooperation of stove thorax, can make water conservancy diversion chamber both sides be heated, make the air that enters into the water conservancy diversion intracavity heat up fast, air after preheating enters into the combustion chamber and mixes with gas fuel, heat up soon, the required time of burning is short, can solve the burning that the low temperature arouses inhomogeneous, unstable problem, can also reduce the emission of multiple pollutants such as gas fuel and intermediate product (like CO), the steam in the backheating chamber can flow in water conservancy diversion chamber and air intensive mixing through the water conservancy diversion passageway, flow to the combustion chamber and burn once more again, promote the combustion effect of fuel, further reach emission reduction energy saving effect, be favorable to reducing the loss of the energy.

The above is a further detailed description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. To those skilled in the art to which the utility model belongs, a plurality of simple deductions or replacements can be made without departing from the concept of the utility model, and all the deductions or replacements should be regarded as belonging to the protection scope of the utility model.

Claims (10)

1. The low-energy-consumption combustion furnace comprises a furnace chamber (1) and a combustion chamber (2), and is characterized in that the furnace chamber (1) comprises a furnace inner chamber (11) and a furnace chamber shell (12), a flow guide cavity (13) and a backheating cavity (14) are arranged on the outer wall of the furnace inner chamber (11), the flow guide cavity (13) is arranged between the backheating cavity (14) and the furnace inner chamber (11), a backheating air hole (15) is arranged on the furnace inner chamber (11), the backheating air hole (15) is communicated with the backheating cavity (14), the combustion chamber (2) is connected to the lower end of the furnace chamber (1), the flow guide cavity (13) supplies air to the combustion chamber (2) through an air outlet pipe (3), the flow guide cavity (13) is further connected with an air supply pipe (4) through a flow guide ring (5), a flow guide channel is formed between the flow guide ring (5) and the air supply pipe (4), and the backheating cavity (14) is communicated with the flow guide cavity (13) through the flow guide channel.

2. The furnace according to claim 1, characterized in that the return air hole (15) is provided with a return pipe (16), and the return pipe (16) extends into the return chamber (14) through the baffle chamber (13).

3. The low energy consumption combustion furnace as set forth in claim 1, wherein a heat collecting reflection sheet (6) is provided around the circumference of the regenerative air hole (15).

4. The low-energy-consumption combustion furnace as claimed in claim 1, wherein the combustion chamber (2) comprises a combustion inner chamber (21) and an air supply outer chamber (22), the side wall of the combustion inner chamber (21) is provided with a vent hole (23), the air supply outer chamber (22) is communicated with the combustion inner chamber (21) through the vent hole (23), and the air outlet pipe (3) is communicated with the air supply outer chamber (22).

5. The low energy consumption burner as claimed in claim 1, wherein the aperture of the deflector ring (5) is larger than the diameter of the air supply pipe (4), at least two locking screws (51) are mounted on the sidewall of the deflector ring (5), and the air supply pipe (4) passes through the deflector ring (5) and is fixed by the locking screws (51).

6. The low energy consumption burner according to claim 1, characterized in that a partition (131) is provided in the baffle chamber (13), and the partition (131) blocks the shortest path between the outlet duct (3) and the supply duct (4).

7. The furnace with low energy consumption as in claim 2, characterized in that the baffle chamber (13) is separated from the regenerative chamber (14) by a separating disc (17), the separating disc (17) is connected to the lower part of the furnace inner chamber (11), the separating disc (17) is provided with a through hole, the return pipe (16) passes through the through hole, and the through hole is hermetically connected with the return pipe (16).

8. The furnace with low energy consumption as in claim 1, characterized in that the outer walls of the furnace casing (12) and the outlet pipe (3) and the combustion chamber (2) are covered with insulating layers.

9. The low energy consumption combustion furnace as claimed in claim 1, wherein n diversion plates (132) are arranged in the diversion cavity (13), and the diversion plates (132) divide the diversion cavity (13) into n +1 communicated circulation spaces.

10. The low energy consumption burner as recited in claim 4, characterized in that a flame homogenizing plate (7) is arranged on the top of the inner combustion chamber (21), and flame homogenizing strips of the flame homogenizing plate (7) are arranged in a manner of diverging from the center to the periphery.

Images