CN205807420U

CN205807420U - Self-regenerative type burner

Info

Publication number: CN205807420U
Application number: CN201620500663.4U
Authority: CN
Inventors: 王建中; 潘映沛; 颜磊
Original assignee: FOSHAN KEHAO COMBUSTION EQUIPMENT MANUFACTURING Co Ltd
Current assignee: FOSHAN KEHAO COMBUSTION EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2016-05-26
Filing date: 2016-05-26
Publication date: 2016-12-14
Anticipated expiration: 2026-05-26

Abstract

nullA kind of Self-regenerative type burner，Including burner shell、Heat storage case、Bake bricks、Gas Pipe，Described burner shell、Heat storage case、Bake bricks and sequentially connect，One end of Gas Pipe extends to bake bricks interior and connect with baking bricks，The other end extends to outside burner shell and external combustion gas，Burner shell、Flue gas dividing plate it is provided with in heat storage case，Burner shell surface is provided with the first first quarter moon valve、Second first quarter moon valve，Specifically，Also include Everlasting fire device，Everlasting fire device is socketed in Gas Pipe surface，Interior and with Gas Pipe the one end that extends to bake bricks, one end of Everlasting fire device pools air-fuel mixing head，The other end extends respectively to that burner shell is outer and external air and combustion gas，Primary air pipe it is provided with in baking bricks、Secondary air pipe，Wherein one end of primary air pipe is connected with heat storage case，Outside the other end passes to bake bricks，One end of secondary air pipe connects with primary air pipe，Outside the other end passes to bake bricks.This utility model compact conformation, limit accumulation of heat of can burning from one's side, greatly reduce the discharge of NOx.

Description

Self-regenerative type burner

Technical field

This utility model relates to burner field, espespecially a kind of Self-regenerative type burner.

Background technology

Industrial furnace belongs to energy-intensive furnaces, combustion gas consumption is huge, when metal stock is heated, substantial amounts of flue gas can be produced, fume emission has taken away substantial amounts of heat of high temperature, cause heat to waste so that the heat utilization efficiency that the energy produces is relatively low, and high-temperature flue gas discharge also can be to environment.

Non-renewable due to the shortage of world energy sources and the energy, in order to save the energy and reduce production cost, in the large scale industry stove such as heat treatment, heating furnace, regenerative combustion technology obtains promotion and application widely.Its operation principle of regenerative combustion technology is: heat-accumulating burner is arranged in pairs, heat storage is utilized to make carrier, alternately heated by waste-gas heat, it is used for adding hot-air or combustion gas by the heat that heat storage stores again, heat storage periodically heats, heat release makes air or gas-preheating is to high temperature, not only ensure that seriality that burner hearth heats but also has reached energy-conservation effect.But owing to conventional heat-accumulating burner must use in pairs, too much burner quantity makes stove floor space excessive, and pipeline installs complexity, the most how to reduce heat-accumulating burner quantity, reduce the floor space of stove, and ensure the constant a great problem becoming heat-accumulating burner of burner accumulation of heat, energy-saving and environmental protection effect.

Summary of the invention

For solving the problems referred to above, this utility model provides a kind of compact conformation, floor space little, self can realize burning limit, limit heat accumulation function, reduce the discharge of NOx greatly, reduce emission in combustion process and the pollution of air is applicable to the compact Self-regenerative type burner of variety classes industrial furnace.

nullFor achieving the above object，The technical solution adopted in the utility model is: a kind of Self-regenerative type burner，Including burner shell、Heat storage case、Bake bricks、Gas Pipe，Described burner shell、Heat storage case、Bake bricks and sequentially connect，One end of Gas Pipe extends to bake bricks interior and connect with baking bricks，The other end extends to outside burner shell and external combustion gas，Described burner shell、It is provided with burner shell in heat storage case、Upper and lower two-part flue gas dividing plate it is divided in heat storage case，Described correspondence respectively of baking bricks is connected with the top and the bottom of heat storage case，Described burner shell surface is provided with the first first quarter moon valve、Second first quarter moon valve is also separately positioned on burner shell top and the bottom，Specifically，Also include Everlasting fire device，Described Everlasting fire device is socketed in Gas Pipe surface，Interior and with Gas Pipe the one end that extends to bake bricks, one end of Everlasting fire device pools air-fuel mixing head，The other end extends respectively to that burner shell is outer and external air and combustion gas，Described bake bricks in be provided with primary air pipe、Secondary air pipe，Wherein one end of primary air pipe is connected with heat storage case，Outside the other end passes to bake bricks，One end of described secondary air pipe connects with primary air pipe，Outside the other end passes to bake bricks.

The beneficial effects of the utility model are: this utility model is by being provided with and will be divided into upper and lower two-part flue gas dividing plate in burner shell, heat storage case in burner shell, heat storage case, burner can be realized and burn while accumulation of heat of discharging fume, in making stove, convection circulation is strengthened, heating quality can be significantly improved, improve productivity of furnace and reduce fuel consumption, can effectively stir gas stream in the stove so that in-furnace temperature is evenly distributed, and temperature uniformity is fabulous；In addition by arranging grading combustion technology, i.e. interior primary air pipe and secondary air pipe are set baking bricks, wherein one end of secondary air pipe connects with primary air pipe, by combustion air supply by several times, realize fractional combustion, flame temperature can be effectively reduced, reduce the discharge of NOx greatly, it is provided with Everlasting fire device, it is ensured that can steady operation during burner switching simultaneously.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the side sectional view of burner shell；

Fig. 3 is this utility model detailed description of the invention schematic diagram.

Drawing reference numeral illustrates: 1-burner shell；11-the first first quarter moon valve；12-the second first quarter moon valve；13-flue gas dividing plate；2-accumulation of heat casing;21-heat storage；22-porous barrier；3-bakes bricks；31-primary air pipe；32-secondary air pipe；4-Gas Pipe；5-air-fuel mixing head；61-ever-burning flame cartridge；62-ever-burning flame air hose.

Detailed description of the invention

nullRefer to shown in Fig. 1-3，This utility model is about a kind of Self-regenerative type burner，Including burner shell 1、Heat storage case 2、Bake bricks 3、Gas Pipe 4，Described burner shell 1、Heat storage case 2、Bake bricks and 3 sequentially connect，One end of Gas Pipe 4 extends to bake bricks in 3 and 3 connects with baking bricks，The other end extends to the outer and external combustion gas of burner shell 1，Described burner shell 1、It is provided with burner shell 1 in heat storage case 2、Upper and lower two-part flue gas dividing plate 13 it is divided in heat storage case 2，Described 3 difference correspondences of baking bricks are connected with the top and the bottom of heat storage case 2，Described burner shell 1 surface is provided with the first first quarter moon valve 11、Second first quarter moon valve 12 is also separately positioned on burner shell 1 top and the bottom，Specifically，Also include Everlasting fire device，Described Everlasting fire device is socketed in Gas Pipe 4 surface，One end of Everlasting fire device extends to bake bricks in 3 and pools air-fuel mixing head 5 with one end of Gas Pipe 4，The other end extends respectively to that burner shell 1 is outer and external air and combustion gas，Described baking bricks is provided with primary air pipe 31 in 3、Secondary air pipe 32，Wherein one end of primary air pipe 31 is connected with heat storage case 2，The other end passes to bake bricks outside 3，One end of described secondary air pipe 32 connects 31 with primary air pipe，The other end passes to bake bricks outside 3.

Compared to existing technology, this utility model is by burner shell 1, it is provided with burner shell 1 in heat storage case 2, upper and lower two-part flue gas dividing plate 13 it is divided in heat storage case 2, burner can be realized and burn while accumulation of heat of discharging fume, enough reclaim the heat in high-temp waste gas, the heat absorbed is for preheated air, the temperature of combustion air can not only be improved, in making stove, convection circulation is strengthened, heating quality can be significantly improved, improve productivity of furnace and reduce fuel consumption, can effectively stir gas stream in the stove, in-furnace temperature is evenly distributed, temperature uniformity is fabulous；In addition by arranging grading combustion technology, i.e. primary air pipe 31 and secondary air pipe 32 are set in 3 baking bricks, wherein one end of secondary air pipe 32 connects with primary air pipe 31, by combustion air supply by several times, it is achieved fractional combustion, flame temperature can be effectively reduced, reduce the discharge of NOx greatly, it is provided with Everlasting fire device, it is ensured that can steady operation during burner switching, it is adaptable to basic, normal, high temperature heat-treatment furnace, heating furnace simultaneously.

In the present embodiment, being provided with cellular heat storage 21, porous barrier 22 in described heat storage case 2, described porous barrier 22 is arranged on the both sides in heat storage case 2, and heat storage 21 is fixedly installed in porous barrier 22.

Use such scheme, by arranging porous barrier 22, be used for fixing heat storage 21, and ensure that combustion air and flue gas can be smoothly through heat storages 21.

In the present embodiment, also include controlling valve, control system, described control valve is arranged on Gas Pipe 4, it is connected at the air inlet of Everlasting fire device and with control system, described first first quarter moon valve 11, second first quarter moon valve 12 is connected with control system, wherein said Everlasting fire device includes the ever-burning flame cartridge 61 being sequentially socketed in Gas Pipe surface, ever-burning flame air hose 62, described ever-burning flame cartridge 61, one end of ever-burning flame air hose 62 extends to bake bricks in 3 and pools air-fuel mixing head 5 with one end of Gas Pipe 4, the other end extends respectively to that burner shell 1 is outer and external air and combustion gas.

Use such scheme, by arranging control valve at Gas Pipe 4, ever-burning flame cartridge 61, ever-burning flame air hose 62 air inlet and being connected with control system, first first quarter moon valve the 11, second first quarter moon valve 12 is connected with control system, can by control system realize air and combustion gas air inflow control and IGNITION CONTROL, and the first first quarter moon valve 11 or the opening and closing of the second first quarter moon valve 12 in use controlled, thus realize the alternation of burner upper and lower.

In the present embodiment, also including that UV detects head, described UV detection head is connected to burner shell 1 surface and is communicated to bake bricks 3, and described control system detects head with UV and is connected.

Use such scheme, by arranging UV detection head and being connected with control system, the detection to burner flame can be realized, detection signal is sent to control system simultaneously, valve is controlled to other corresponding chain, it is ensured that burner safety in use by control system.

Below by specific embodiment, the utility model is described in further detail.

This utility model list props up use as shown in Figure 3, self can realize limit burning limit accumulation of heat.First burner is divided into lower and upper parts along flue gas dividing plate 13, when its operation principle is the burning of burner lower half, the burner first half is discharged fume, after reaching the switching time that control system sets, control system controls the working method of corresponding control valve goalkeeper's burner first half and lower half and switches over, now burner first half burning, discharges fume in burner lower half.

Ever-burning flame air is entered arrival air-fuel mixing head 5 by ever-burning flame air hose 62, and ever-burning flame combustion gas arrives air-fuel mixing head 5, ever-burning flame air and ever-burning flame combustion gas through ever-burning flame Gas Pipe 61 and 3 is internally formed ever-burning flame baking bricks, and this flame acts the effect of igniting；

Main burner combustion air is entered by the second first quarter moon valve 12, through the cavity within burner shell 1, due to flue gas dividing plate 13 every blocking, combustion air is made to be always positioned at the bottom of burner shell 1, the heat storage 21 of heat storage case 2 bottom is entered by porous barrier 22, in heat storage case 2 bottom, there is heat exchange in combustion air and heat storage 21, now combustion air is preheating to high temperature, the high temperature air produced enters the primary air pipe 31 of 3 bottoms of baking bricks, a portion high temperature air is further separated into secondary air pipe 32, it is achieved air classification；

Main combustion gas is entered by Gas Pipe 4 one end and arrives air-fuel mixing head 9, from 3 center ejections of baking bricks, existence due to ever-burning flame, the hot-air that the combustion gas of ejection first comes with lower half primary air pipe 31 forms primary combustion, the hot-air come with lower half secondary air pipe 32 the most again forms second-time burning, multistage combustion technology can effectively reduce flame temperature, reduces the discharge of NOx；

The flue gas produced after burning circulates in burner 7, draft due to outside smoke exhaust fan, flue gas entered porous barrier 22 through hard-burned brick top secondary air pipe 32 and top primary air pipe 31, enter top heat storage 21, there is heat exchange in flue gas and heat storage 21 in top heat storage 21, transferring heat to top heat storage 21, the flue gas after heat exchange arrives the internal cavity of burner shell 1, discharges through the first first quarter moon valve 11.

The program set by control system and respective valves control, this burner first half and lower half is made periodically to carry out above-mentioned work process, realize burning limit, the limit heat-accumulating process of heat-accumulating burner, and during the use of burner heat storage ceaselessly absorb heat, heat release, the combustion air entered is made to be preheating to higher temperature, flue-gas temperature after heat exchange is extremely low, can be directly discharged in air, and burner in use reaches the purpose of energy-saving and emission-reduction.

Embodiment of above is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by this area ordinary skill technical staff and improvement, all should fall in the protection domain that claims of the present utility model determine.

Claims

null1. a Self-regenerative type burner，Including burner shell、Heat storage case、Bake bricks、Gas Pipe，Described burner shell、Heat storage case、Bake bricks and sequentially connect，One end of Gas Pipe extends to bake bricks interior and connect with baking bricks，The other end extends to outside burner shell and external combustion gas，Described burner shell、It is provided with burner shell in heat storage case、Upper and lower two-part flue gas dividing plate it is divided in heat storage case，Described correspondence respectively of baking bricks is connected with the top and the bottom of heat storage case，Described burner shell surface is provided with the first first quarter moon valve、Second first quarter moon valve is also separately positioned on burner shell top and the bottom，It is characterized in that，Also include Everlasting fire device，Described Everlasting fire device is socketed in Gas Pipe surface，Interior and with Gas Pipe the one end that extends to bake bricks, one end of Everlasting fire device pools air-fuel mixing head，The other end extends respectively to that burner shell is outer and external air and combustion gas，Described bake bricks in be provided with primary air pipe、Secondary air pipe，Wherein one end of primary air pipe is connected with heat storage case，Outside the other end passes to bake bricks，One end of described secondary air pipe connects with primary air pipe，Outside the other end passes to bake bricks.
Self-regenerative type burner the most according to claim 1, it is characterised in that be provided with cellular heat storage, porous barrier in described heat storage case, described porous barrier is arranged on the both sides in heat storage case, and heat storage is fixedly installed in porous barrier.
Self-regenerative type burner the most according to claim 1, it is characterized in that, also including controlling valve, control system, described control valve is arranged at the air inlet of Gas Pipe, Everlasting fire device and is connected with control system, and described first first quarter moon valve, the second first quarter moon valve are connected with control system.
Self-regenerative type burner the most according to claim 3, it is characterized in that, described Everlasting fire device includes sequentially being socketed in the ever-burning flame air hose on Gas Pipe surface, ever-burning flame cartridge, described ever-burning flame air hose, one end of ever-burning flame cartridge interior and with Gas Pipe the one end that extends to bake bricks pools air-fuel mixing head, the other end extends respectively to that burner shell is outer and external air and combustion gas, described ever-burning flame air hose, ever-burning flame cartridge air inlet at connect and have control valve and be connected with control system.
Self-regenerative type burner the most according to claim 1, it is characterised in that also include that UV detects head, in described UV detection head is connected to burner shell surface and is communicated to bake bricks.
Self-regenerative type burner the most according to claim 5, it is characterised in that also include that control system, described control system are connected with UV detection head.