CN212481280U - Combustion head for vertical heating furnace - Google Patents

Abstract

The utility model belongs to the technical field of the burning, specifically be a vertical heating furnace is with combustion head, including the combustion head body, the one end of combustion head body is the inlet end, and the other end is the burning end, and the end connection of burning end has mixed fan housing, and mixed fan housing is tubular structure, has round mouth end and flat mouthful end, and the end connection of round mouth end and burning end, flat mouthful end are kept away from the burning end and are set up, and flat mouth end and round mouth end rounding off form reducing section and hole enlargement section. The utility model discloses a vertical heating furnace is with combustion head carries out moulding to burning flame through increase the mixed fan housing on current combustion head, utilizes the flame export of prolate to flatten flame, reaches the purpose that shortens flame, sets up three supply-air outlet in this internal setting of combustion head in addition, makes gas and air intensive mixing for burn-out process further shortens flame.

Description

Combustion head for vertical heating furnace

Technical Field

The utility model belongs to the technical field of the burning, specifically be a vertical heating furnace is with burning head.

Background

At present, about 2327 vertical heating furnaces are shared in Changqing oil fields, and conventional burners such as main fire burners or simple burners mainly matched with the vertical heating furnaces are easy to cause safety risks due to incompleteness of a matched safety interlocking protection device in the early stage under the working condition that fuel gas carries liquid seriously, and meanwhile, combustion emission indexes are not up to standard, so that a lot of difficulties, problems and safety risks are brought to safe and clean production of oil gas.

Under the production condition in oil field, many well sites are narrow and small or the space arrangement has special requirements, and adopt the less vertical furnace of volume, and the furnace of vertical furnace is vertical to be arranged, and the diameter is not big, and combustor flame must adapt to narrow and small abnormal shape furnace, and flame can not erode the furnace courage wall, and this just requires to carry out moulding to the burning flame that gets into furnace, shortens flame, makes flame and furnace courage wall can not contact. In addition, the current environmental protection requirement is increasingly strict, and a large amount of NOX generated by combustion is one of the main reasons of haze weather and is a key treatment object. Therefore, the combustor must achieve low-nitrogen emission combustion, reducing pollutant emissions.

Therefore, it is necessary to develop a combustion head dedicated for a vertical heating furnace to overcome the problems of long flame and insufficient combustion of the existing combustion head, reduce the safety risk, and improve the safety and reliability.

SUMMERY OF THE UTILITY MODEL

For solving the problem among the above-mentioned background art, the utility model provides a vertical heating furnace is with combustion head through increasing the mixed fan housing on current combustion head, carries out moulding to burning flame, utilizes the flame export of prolate to flatten flame, reaches the purpose that shortens flame, in addition at this internal three supply-air outlet that sets up of combustion head, makes gas and air intensive mixing for burn off process further shortens flame.

The utility model adopts the following technical scheme: the utility model provides a vertical burner for heating furnace, includes the burner body, and the one end of burner body is the inlet end, and the other end is the burning end, and the rear connection of burning end has mixed fan housing, mixes the fan housing including the round mouth end and the flat mouth end that connect gradually, and the round mouth end is connected with the rear connection of burning end, and the burning end setting is kept away from to the flat mouth end, and the flat mouth end crosses with the rounding off of round mouth end rounding off and forms reducing section and hole enlargement section.

Preferably, the flat opening end of the wind mixing cover is one of a cross-shaped end, a rectangular end and an oval end.

Preferably, the air mixing cover is movably connected with the tail part of the combustion end.

In another preferred scheme, the wind mixing cover is fixedly connected with the tail part of the combustion end.

Furthermore, the combustion head body is internally provided with a first air supply outlet, a second air supply outlet and a third air supply outlet in sequence along the direction of the air mixing cover, a rotational flow plate is arranged in the first air supply outlet and plays a role in rotational flow, and the wind direction of the third air supply outlet is vertical to the round opening end of the air mixing cover.

Furthermore, the device also comprises a vertical heating furnace, and the combustion head is arranged on the side wall of the vertical heating furnace.

Furthermore, the outer wall of the combustion body is provided with a heat-insulating layer.

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

(1) the utility model discloses a vertical heating furnace is with combustion head is through increasing the mixed fan housing on current combustion head, mixes the fan housing and has round mouth end and flat mouthful end, and flat mouthful end forms reducing section and hole enlargement section with round mouth end rounding off, and the reducing section can make gaseous production up and down offset, further makes air and gas mix with higher speed, and the mixed fan housing of this special construction design can carry out moulding to burning flame, utilizes the flame export of flat length to flatten flame, reaches the purpose that shortens flame.

(2) The utility model discloses a vertical heating furnace is with combustion head at this internal three supply-air outlet that sets up of combustion head, makes gas and air intensive mixing for burn-off process further shortens flame.

Drawings

For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an overall structure diagram of a vertical heating furnace with a burner head according to the present invention;

FIG. 2 is an internal structure view of the burner head of the present invention applied to a vertical heating furnace;

FIG. 3 is a structural diagram of an embodiment of an air mixing hood in a burner head of the present invention;

FIG. 4 is a view showing the internal structure of the burner head body of the present invention;

the device comprises a combustion head body, an air inlet end, a combustion end, a first air supply outlet, a second air supply outlet, a third air supply outlet, a gas inlet, a 2-air mixing cover, a round opening end, a flat opening end and a 3-vertical heating furnace, wherein the combustion head body comprises 11 parts, the air inlet end, the combustion end comprises 12 parts, the first air supply outlet, the second air supply outlet, the third air supply outlet, the 16 parts, the gas inlet, the.

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 present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the utility model provides a vertical combustion head for heating furnace, including combustion head body 1, the one end of combustion head body 1 is inlet end 11, and the other end is combustion end 12, and the end connection of combustion end 12 has mixed fan housing 2, and mixed fan housing 2 is tubular structure, has round mouth end 21 and flat mouth end 22, and round mouth end 21 and the end connection of combustion end 12, flat mouth end 22 keep away from combustion end 12 and set up, and flat mouth end 22 and round mouth end 21 rounding off form reducing section and hole enlargement section.

In this embodiment, mix wind cover 2 and form elongated combustion space for tubular structure and 12 intercommunications of combustion end, make gas and air have more abundant burning time, combustion space and mixing space, and the setting of reducing section on mixing wind cover 2 enables the combustion gas that passes in burner body 1 to produce at reducing section department and dashes from top to bottom, the air current direction changes, make the further mixture of the gas that is not burnt at burner end 12 of burner body 1, mixing effect is better, this mixed wind cover 2 of special construction design can carry out moulding to burning flame, utilize flat long flame outlet to flatten flame, reach the purpose that flame shortens, can not assault the furnace courage wall when making burning flame enter from heating furnace lateral wall, avoided both contacts to produce chemical reaction, influence the life of heating furnace.

The utility model discloses do not specially limit to the shape of the flat mouthful end of muddy wind cover, the flat mouthful end 22 of preferred muddy wind cover 2 is one of cross end, rectangle end, oval end. Because the wind mixing cover 2 is cylindrical and has a certain length, the combustion space is increased, and the arrangement of the flat port end 22 in different shapes can reshape the combustion flame, so that the flame is changed into a flat short flame at the outlet.

Preferably, the wind mixing cover 2 of this embodiment is rotatably connected to the tail of the combustion end 12, and for better accelerating the combustion and mixing of air and gas, the wind mixing cover 2 rotates around the combustion head body 1 during operation, so that the unburnt gas and air in the combustion head body 1 are further accelerated to collide and mix, and are fully combusted in the wind mixing cover 2, thereby accelerating the burnout process and further shortening the flame.

In another preferred embodiment, the wind mixing cover 2 is fixedly connected to the tail of the combustion end 12, the effect of the fixed connection is inferior to the effect of the rotary connection, but the fixed connection makes the combustion head more stable, the use is more convenient, the damage of the combustion head caused by vibration and the like can not occur, and of course, the use effect of the utility model can be achieved by the fixed connection and the rotary connection, and the person skilled in the art can select by himself.

Specifically, the muddy wind cover 2 forms for fire-resistant, the preparation of heat accumulation material, and the mist of not fully burning can be in muddy wind cover 2 further accelerated combustion, the utility model discloses can use in the narrow and small burning environment in spaces such as vertical furnace, the gas can be stable and fully burn.

Specifically, as shown in fig. 2 and 4, a first air supply outlet 13, a second air supply outlet 14 and a third air supply outlet 15 are sequentially arranged in the combustion head body 1 along the direction of the air mixing cover 2, a rotational flow plate with a certain angle is arranged in the first air supply outlet 13 and plays a role of rotational flow, the wind direction of the third air supply outlet 15 is perpendicular to the round end 21 of the air mixing cover 2, and the fuel gas is distributed to the combustion area through an annular nozzle hole and is sequentially mixed and combusted with the air entering through the first air supply outlet 13, the second air supply outlet 14 and the third air supply outlet 15, as can be seen from fig. 2, the third air supply outlet 15 is an annular through hole and is located between the air mixing cover 2 and the combustion cylinder, it should be noted that the second air supply outlet 14 is located on the combustion cylinder, in this embodiment, the fuel gas entering through the fuel gas inlet 16 is fully mixed through triple air distribution, so as to ensure that the fuel gas is combusted more fully, and the wind direction of the third air supply outlet 15 is perpendicular to the round, the air entering from the third air supply hole 15 directly enters the air mixing cover 2 and is further mixed with the unburnt gas in the air mixing cover 2, so that the combustion is more sufficient, and the flame is further shortened.

It is specific, still include vertical heating furnace 3, the combustion head is installed in vertical heating furnace 3's lateral wall, the utility model discloses a vertical heating furnace is applied to the combustion head, and installs at vertical heating furnace's lateral wall, and burning flame gets into furnace in the side, because the design of combustion head makes flame be short flame platykurtic, flame can not burn with furnace inner wall contact, has guaranteed vertical heating furnace's life, has also avoided flame and furnace burning to produce harmful substance simultaneously.

Specifically, the outer wall of the combustion body 1 is provided with the heat preservation layer, so that the combustion heat is prevented from forming air convection with the outside, and the energy loss is reduced.

The specific working principle is as follows: air firstly enters the combustion head from the first air supply outlet 13 and is mixed and combusted with gas entering the combustion head, wherein a part of insufficiently combusted gas is continuously pushed forwards and is mixed and combusted with air entering from the second air supply outlet 14, the insufficiently combusted gas is continuously pushed forwards at the stage and enters the air mixing cover 2 and is further mixed and combusted with air entering from the third air supply outlet 15, and the air and the gas are more sufficiently combusted through triple air supply, so that the emission of pollutants is reduced to the maximum extent; in addition, the air mixing cover 2 is provided with a round opening end 21 and a flat opening end 22, the combustion flame is reshaped in the air mixing cover 2, so that the combustion flame out of the air mixing cover is flat, the length of the flame is shortened, the reshaped combustion flame can not impact the furnace liner wall when entering the vertical combustion furnace, and the combustion flame is prevented from contacting with the furnace liner wall to generate chemical reaction.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims (7)

1. The utility model provides a vertical heating furnace is with combustion head, its characterized in that, includes the combustion head body, the one end of combustion head body is the inlet end, and the other end is the combustion end, the afterbody connection of combustion end has the wind-mixing cover, the wind-mixing cover is including the round mouth end and the flat mouth end that connect gradually, round mouth end with the afterbody connection of combustion end, the flat mouth end is kept away from the combustion end sets up, flat mouth end with round mouth end rounding off forms reducing section and hole enlargement section.

2. The burner head for a vertical heating furnace as claimed in claim 1, wherein the flat mouth end of the air mixing cover is one of a cross-shaped end, a rectangular end and an oval end.

3. The burner head for the vertical heating furnace as claimed in claim 1, wherein the air mixing hood is movably connected to the tail of the burner end.

4. The burner head for a vertical heating furnace according to claim 1, wherein the air mixing cover is fixedly connected with the tail part of the burning end.

5. The burner head for a vertical heating furnace as claimed in claim 1, wherein the burner head body is provided with a first air supply port, a second air supply port and a third air supply port in sequence along the direction of the air mixing cover, the first air supply port is provided with a swirl plate therein to act as a swirl, and the third air supply port has an air direction perpendicular to the round mouth end of the air mixing cover.

6. The burner head for a vertical heating furnace according to claim 1, further comprising a vertical heating furnace, wherein the burner head is mounted to a sidewall of the vertical heating furnace.

7. The burner head for a vertical heating furnace according to any one of claims 1 to 6, wherein an insulating layer is provided on an outer wall of the burner head body.

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