CN211119346U

CN211119346U - Flame layered combustion control device of natural gas burner

Info

Publication number: CN211119346U
Application number: CN201922216702.4U
Authority: CN
Inventors: 音帮洋; 步宝兰; 范培珍; 朱延攀; 胡亚宾
Original assignee: Hefei Yuezhilan Electromechanical Equipment Co ltd
Current assignee: Hefei Yuezhilan Electromechanical Equipment Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-11
Publication date: 2020-07-28
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a natural gas combustor flame layering combustion control device, including underframe, air-blower and combustor rifle storehouse, the air-blower includes fan body, air-blower impeller, fan base and base gyro wheel, and flange joint combustor rifle storehouse is passed through to the output of fan body, and the welding has the natural gas reservoir on the outer wall of combustor rifle storehouse, and the inboard of combustor rifle storehouse is equipped with inlayer nozzle assembly and outer nozzle. This layered combustion controlling means of natural gas burner flame, the air-blower provides sufficient air for combustor rifle storehouse, inlayer nozzle assembly and outer nozzle are all at the inboard evenly distributed in combustor rifle storehouse, two inside and outside nozzles cooperate in coordination to divide into several levels of burning with flame, central flame burning and outside flame burning promptly, control the combustion temperature too high through this method, reduce oxynitride's formation, part among the inlayer nozzle assembly can the dismouting, convenient the maintenance, wherein the swirl fan can also accelerate the combustion volume of inlayer flame.

Description

Flame layered combustion control device of natural gas burner

Technical Field

The utility model relates to a special combustor technical field of pitch stirring specifically is a natural gas burner flame layering combustion control device.

Background

The nitrogen oxide generating sources in the industrial kiln and boiler industry are mainly three types, namely a heating type, a fuel type and a rapid type. The high-temperature high. Fuel-type nitrogen oxides can be removed by using a fuel without nitrogen molecules, such as natural gas; increasing the residence time of the combustibles in the flame front and the reaction zone at lower oxygen concentrations reduces the production of fast nitrogen oxides. The treatment of thermal nitrogen oxide is the main direction for reducing the emission of nitrogen oxide in the industry of industrial kilns and boilers.

A large number of researches show that emission can be effectively reduced by controlling the generation source of oxynitride through the technical improvement of the combustor, the reduction of the flame combustion temperature is also a control mode, and in addition, the sufficient combustion and the control of the amount of peroxide are also important channels. But the inside pipeline that still adopts the simplex structure of current natural gas combustor, gas spun flame temperature is too high, still can produce a large amount of nitrogen oxides, and the feature of environmental protection is not good, and its part dismouting is inconvenient simultaneously, influences subsequent maintenance and repair, and the unable reasonable flame that accelerates of natural gas combustor inner structure rigid influences its nitrogen oxide's production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural gas combustor flame layering combustion control device possesses and can effectively reduce nitrogen oxide and produce, and the environmental protection nature is good and can accelerate the advantage of the combustion volume of inlayer flame, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a natural gas combustor flame stratified combustion controlling means, includes underframe, air-blower and combustor rifle storehouse, the air-blower is installed in the top of underframe, and the air-blower includes fan body, air-blower impeller, fan base and base gyro wheel, and fan base is installed to the bottom of fan body, and all there is the base gyro wheel bottom both ends department of fan base through the screw connection, and the upper surface of base gyro wheel contact underframe, the inboard of fan body are equipped with the air-blower impeller, and the output of fan body passes through flange and bolted connection combustor rifle storehouse, the welding has the natural gas reservoir on the outer wall of combustor rifle storehouse, and the inboard of combustor rifle storehouse is equipped with inlayer nozzle assembly and outer nozzle, inlayer nozzle assembly and outer nozzle all communicate with the natural gas reservoir, and inlayer nozzle assembly includes blast pipe, porous steady flame dish, whirl fan, fire-resistant double-screw bolt, Stretch into pipe and burning nozzle stub, the inner wall in combustor rifle storehouse is connected to the one end of air feed pipe, and the other end connection of air feed pipe stretches into the pipe, stretches into the pipe and passes through the fixed burning nozzle stub of welded mode, is fixed with fire-resistant stud on the burning nozzle stub, installs porous steady flame dish on the fire-resistant stud, and the lateral wall center department installation whirl fan of porous steady flame dish, the outside of porous steady flame dish are equipped with outer nozzle, the inner wall in combustor rifle storehouse is connected to the one end of outer nozzle, and the orifice has been seted up to the other end of outer nozzle.

Preferably, a fastening bolt is mounted on a side wall of the air supply pipe, and a bottom end of the fastening bolt is connected with the extension pipe.

Preferably, the combustion short pipe is provided with an air outlet facing one side of the porous flame stabilizing disc.

Preferably, the edge of the outer wall of the burner gun warehouse is connected with a burner steel head through a flange, and the burner steel head is positioned on the outer side of the outer-layer nozzle.

Preferably, the inner nozzle assembly and the outer nozzle assembly are uniformly distributed on the inner side of the burner gun bank.

Preferably, the natural gas storage chamber is connected with one end of a natural gas main pipeline.

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

1. according to the flame layered combustion control device of the natural gas burner, the air blower provides sufficient air for the burner gun warehouse, and the combustion effect is ensured.

2. This layered combustion controlling means of natural gas burner flame, inlayer nozzle assembly and outer nozzle all are at the inboard evenly distributed of combustor rifle storehouse, and two inside and outside nozzles cooperate and divide into several grades of burning with flame, central flame burning and outside flame burning promptly, and wherein inlayer nozzle assembly spun centre layer temperature is higher, and outer nozzle spun outside burning layer temperature is lower, controls the combustion temperature through this method and is too high, reduces the formation of oxynitride, and the feature of environmental protection is good.

3. This layered combustion controlling means of natural gas burner flame, the pipe of stretching into in the inlayer nozzle assembly, burning nozzle stub, porous steady flame dish and whirl fan homoenergetic dismouting, the convenient maintenance, porous steady flame dish all plays the effect of stabilizing flame with the whirl fan, and wherein the whirl fan can also accelerate the burning volume of inlayer flame, and the nitrogen oxide that spun flame produced is few like this.

Drawings

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

FIG. 2 is an enlarged schematic view of the utility model at A-A;

FIG. 3 is an enlarged schematic view of the utility model at B-B;

FIG. 4 is a schematic structural view of the inner nozzle assembly of the present invention;

FIG. 5 is a schematic view of the combustion nozzle stub structure of the present invention;

fig. 6 is a schematic side view of the cyclone fan of the present invention.

In the figure: 1. a bottom frame; 2. a blower; 21. a fan body; 22. a blower impeller; 23. a fan base; 24. a base roller; 3. a burner gun magazine; 4. a burner steel head; 5. a natural gas storage chamber; 6. an inner nozzle assembly; 61. an air supply pipe; 62. a porous flame stabilizing disc; 63. a swirl fan; 64. a refractory stud; 65. extending the tube; 66. a combustion stub; 661. an air outlet; 67. fastening a bolt; 7. an outer layer nozzle; 71. and (6) spraying the holes.

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 to 6, a flame layered combustion control device for a natural gas burner comprises a bottom frame 1, a blower 2 and a burner gun magazine 3, wherein the blower 2 provides sufficient air for the burner gun magazine 3 to ensure a combustion effect, the blower 2 is installed above the bottom frame 1, the blower 2 comprises a blower body 21, a blower impeller 22, a blower base 23 and base rollers 24, the blower base 23 is installed at the bottom end of the blower body 21, the blower base 23 is used for supporting the blower body 21, the base rollers 24 are connected at two ends of the bottom end of the blower base 23 through screws, the base rollers 24 can assist the blower 2 and the burner gun magazine 3 to move after being installed, the base rollers 24 contact the upper surface of the bottom frame 1, the impeller 22 is arranged on the inner side of the blower body 21, the blower impeller 22 can drive air to flow when rotating, the output end of the blower body 21 is connected with the burner gun magazine 3 through flanges and bolts, that is, the blower body 21 provides sufficient air for the burner gun magazine 3, the natural gas storage chamber 5 is welded on the outer wall of the burner gun magazine 3, the natural gas storage chamber 5 is connected with one end of a natural gas main pipeline, that is, the natural gas main pipeline conveys natural gas to the natural gas storage chamber 5, the natural gas storage chamber 5 temporarily stores the natural gas, the inner side of the burner gun magazine 3 is provided with an inner nozzle assembly 6 and an outer nozzle 7, the inner nozzle assembly 6 and the outer nozzle 7 are uniformly distributed on the inner side of the burner gun magazine 3, so that the flames sprayed by the inner nozzle assembly 6 and the outer nozzle 7 are uniform, the integral combustion effect is ensured, the inner nozzle assembly 6 and the outer nozzle 7 are communicated with the natural gas storage chamber 5, so that the natural gas is injected into the inner nozzle assembly 6 and the outer nozzle 7, the inner nozzle assembly 6 comprises a gas supply pipe 61 and a porous flame stabilizing disc 62, The burner comprises a swirl fan 63, a fire-resistant stud 64, an extension pipe 65 and a combustion short pipe 66, wherein a fastening bolt 67 is installed on the side wall of an air supply pipe 61, the bottom end of the fastening bolt 67 is connected with the extension pipe 65, the extension pipe 65 can be freely assembled and disassembled in this way, one end of the air supply pipe 61 is connected with the inner wall of a burner gun warehouse 3, the other end of the air supply pipe 61 is connected with the extension pipe 65, the extension pipe 65 is fixed with the combustion short pipe 66 in a welding way, namely, the extension pipe 65 and the combustion short pipe 66 can be freely assembled and disassembled, an air outlet hole facing one side of a porous flame stabilizing disc 62 is formed in the combustion short pipe 66, so that flames jetted from the combustion short pipe 66 face the porous flame stabilizing disc 62, the fire-resistant stud 64 is fixed on the combustion short pipe 66, the porous flame stabilizing disc 62 is installed on the fire-resistant stud 64, the swirl fan 63 is installed in the center of the side wall of the porous flame, porous steady flame dish 62 and whirl fan 63 all play flame stabilizing's effect, wherein whirl fan 63 can also accelerate the burning volume of inlayer flame, porous steady flame dish 62's the outside is equipped with outer nozzle 7, the even distribution of outer nozzle 7 is in the outside of inlayer nozzle assembly 6, inside and outside two nozzles cooperate and divide into several grades of burning with flame, central flame burning and outside flame burning promptly, the central zone temperature is higher, outside burning zone temperature is lower, control burning temperature through this method is too high, reduce the formation of oxynitride, the inner wall of combustor rifle storehouse 3 is connected to the one end of outer nozzle 7, orifice 71 has been seted up to the other end of outer nozzle 7, there is combustor steel head 4 at combustor rifle storehouse 3 outer wall edge through flange joint, combustor steel head 4 is located the outside of outer nozzle 7, combustor steel head 4 is used for protecting flame.

The flame layered combustion control device of the natural gas burner comprises a blower 2, a burner gun warehouse 3, a natural gas storage chamber 5, a natural gas main pipeline 5, an inner nozzle assembly 6, an outer nozzle assembly 7, a natural gas storage chamber 5, an inner nozzle assembly 6, an outer nozzle assembly 7, a burner and a burner, wherein the blower 2 provides sufficient air for the burner gun warehouse 3, the combustion effect is ensured, the output end of the blower 21 is connected with the burner gun warehouse 3 through a flange and a bolt, namely, the blower 21 provides sufficient air for the burner gun warehouse 3, the natural gas storage chamber 5 is welded on the outer wall of the burner gun warehouse 3, the natural gas storage chamber 5 is connected with one end of the natural gas main pipeline, namely, the natural gas main pipeline transmits natural gas to the natural gas storage chamber 5, the inner nozzle assembly 6 and the outer nozzle assembly 7 are both communicated with the natural gas storage chamber 5, the inner nozzle assembly 6, the temperature of the central layer is high, the temperature of the external combustion layer is low, the over-high combustion temperature is controlled by the method, the generation of nitrogen oxide is reduced, the environmental protection performance is good, the inner-layer nozzle assembly 6 comprises an air supply pipe 61, a porous flame stabilizing disc 62, a swirl fan 63, a fire-resistant stud 64, an extension pipe 65 and a combustion short pipe 66, the extension pipe 65 is inserted into one end of the air supply pipe 61 and is positioned through a fastening bolt 67, the extension pipe 65 can be freely disassembled and assembled, the porous flame stabilizing disc 62 and the swirl fan 63 both play a role in stabilizing flame, the swirl fan 63 can also accelerate the combustion amount of inner-layer flame, one end of the outer-layer nozzle 7 is connected with the inner wall of the burner gun warehouse 3, the other end of the outer-layer nozzle 7 is provided with a spray hole 71, the burner steel head 4 is positioned on the outer side of the outer-.

In summary, the following steps: the layered combustion control device for the flame of the natural gas burner comprises a blower 2, an inner nozzle assembly 6, an outer nozzle assembly 7, a natural gas storage chamber 5, an inner nozzle assembly 6, an outer nozzle assembly 7, an outer nozzle assembly 6, an inner nozzle assembly and an outer nozzle assembly 63, wherein the inner nozzle assembly 6 and the outer nozzle assembly 7 are communicated with the natural gas storage chamber 5, the inner nozzle assembly 6 and the outer nozzle assembly 7 are uniformly distributed on the inner side of the burner gun warehouse 3, the inner nozzle assembly and the outer nozzle assembly cooperate to divide the flame into a plurality of combustion levels, namely central flame combustion and external flame combustion, wherein the temperature of a central layer sprayed by the inner nozzle assembly 6 is higher, the temperature of an external combustion layer sprayed by the outer nozzle assembly 7 is lower, the over-high combustion temperature is controlled by the method, the generation of oxynitride is reduced, the environmental protection is good, an extension pipe 65, a combustion short pipe 66, a porous flame stabilizing disc, the swirl fan 63 can also accelerate the combustion amount of the inner layer flame, so that the nitrogen oxide generated by the sprayed flame is less, one end of the outer layer nozzle 7 is connected with the inner wall of the burner gun warehouse 3, the other end of the outer layer nozzle 7 is provided with a spray hole 71, the burner steel head 4 is positioned on the outer side of the outer layer nozzle 7, and the burner steel head 4 is used for protecting the flame.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 natural gas combustor flame layering combustion control device, includes underframe (1), air-blower (2) and combustor rifle storehouse (3), its characterized in that: the air blower (2) is installed above the bottom frame (1), the air blower (2) comprises a blower body (21), blower impellers (22), a blower base (23) and base rollers (24), the blower base (23) is installed at the bottom end of the blower body (21), the base rollers (24) are connected to two ends of the bottom end of the blower base (23) through screws, the base rollers (24) are in contact with the upper surface of the bottom frame (1), the blower impellers (22) are arranged on the inner side of the blower body (21), the output end of the blower body (21) is connected with the burner gun warehouse (3) through flanges and bolts, a natural gas storage chamber (5) is welded on the outer wall of the burner gun warehouse (3), an inner nozzle assembly (6) and an outer nozzle (7) are arranged on the inner side of the burner gun warehouse (3), and the inner nozzle assembly (6) and the outer nozzle (7) are both communicated with the natural gas storage chamber (5), inner nozzle assembly (6) are including air feed pipe (61), porous flame stabilizing disc (62), whirl fan (63), fire-resistant stud (64), stretch into pipe (65) and burning nozzle stub (66), the inner wall of combustor rifle storehouse (3) is connected to the one end of air feed pipe (61), the other end of air feed pipe (61) is connected and is stretched into pipe (65), stretch into pipe (65) through fixed burning nozzle stub (66) of welded mode, be fixed with fire-resistant stud (64) on burning nozzle stub (66), install porous flame stabilizing disc (62) on fire-resistant stud (64), the lateral wall center department installation fan (63) of porous flame stabilizing disc (62), the outside of porous flame stabilizing disc (62) is equipped with outer nozzle (7), the inner wall of combustor rifle storehouse (3) is connected to the one end of outer nozzle (7), whirl orifice (71) have been seted up to the other end of outer nozzle (7).

2. The natural gas burner flame stratified combustion control apparatus as claimed in claim 1, wherein: and a fastening bolt (67) is mounted on the side wall of the air supply pipe (61), and the bottom end of the fastening bolt (67) is connected with the extension pipe (65).

3. The natural gas burner flame stratified combustion control apparatus as claimed in claim 1, wherein: the combustion short pipe (66) is provided with an air outlet (661) facing one side of the porous flame stabilizing disc (62).

4. The natural gas burner flame stratified combustion control apparatus as claimed in claim 1, wherein: the outer wall edge of the burner gun storehouse (3) is connected with a burner steel head (4) through a flange, and the burner steel head (4) is positioned on the outer side of the outer-layer nozzle (7).

5. The natural gas burner flame stratified combustion control apparatus as claimed in claim 1, wherein: the inner layer nozzle assembly (6) and the outer layer nozzle (7) are uniformly distributed on the inner side of the burner gun bank (3).

6. The natural gas burner flame stratified combustion control apparatus as claimed in claim 1, wherein: the natural gas storage chamber (5) is connected with one end of a natural gas main pipeline.