CN202561752U

CN202561752U - Multi-ejection-pipe burner

Info

Publication number: CN202561752U
Application number: CN2012201632467U
Authority: CN
Inventors: 沈丽荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-28
Filing date: 2012-04-17
Publication date: 2012-11-28
Anticipated expiration: 2022-04-17
Also published as: CN102644920A

Abstract

The utility model discloses a multi-ejection-pipe burner. The multi-ejection-pipe burner comprises an inner-ring fire cover, an outer-ring fire cover, an outer-ring fire cover seat, a gas channel cover, a countersunk bolt, a furnace head, an outer-ring fire gas premixing chamber, an inner-ring fire ejection pipe, a speed reducing net, an inner-ring fire nozzle, an outer-ring fire ejection pipe, an outer-ring fire nozzle, a base, a fastening bolt, a process plug, an inner-ring fire gas inlet joint, an outer-ring fire gas inlet joint, an outer-ring fire premixing channel and the like. The multi-ejection-pipe burner disclosed by the utility model has the advantages that one nozzle is divided into a plurality of nozzles, one ejection pipe is divided into a plurality of ejection pipes, and under the condition without adding auxiliary equipment, one-time air ejection amount is increased only by the own energy of the gas, so that the burning effect is improved and the energy-saving and emission-reducing purposes are achieved.

Description

A kind of many induction tunnels burner

Technical field: the utility model relates to a kind of burner, and particularly a kind of many induction tunnels burner belongs to the household gas range technical field.

Background technology: atmospheric burner is the critical piece of gas-cooker, according to partly-premixed combustion method design.Its operation principle is: combustion gas sprays from nozzle with certain flow velocity under certain pressure, gets into induction tunnel; Rely on the ejector action of the energy of combustion gas own; Attract surrounding air to get into induction tunnel, this part air is called primary air, its primary air ratio 0＜α '＜1.Primary air and combustion gas mix in burner after fire hole flows out burning, and flame is from attracting air-breathing on every side during burning, and this part air is called auxiliary air.

The thermal efficiency of burner and fume emission index are influenced by primary air injection volume and combustion gas and air pre-mixing situation mainly.Primary air injection many more, fuel gas buring abundant more.High-power burner adopts air blast primary air to be provided and to carry out premix, makes combustion gas fully to burn.Low power burner does not have ancillary method to increase primary air, and the air of bringing in the time of can only relying on the combustion gas injection carries out premix, and therefore, the thermal efficiency of small-power burner is lower, and fume emission is prone to exceed standard.

Have only an induction tunnel on the burner, the burner of existing a plurality of induction tunnels (more than 2 or 2) is that a plurality of small-power sets of burners are lumped together, UNICOM not between the induction tunnel, and volume is bigger, and cost is higher.

The utility model content: to the deficiency of above-mentioned prior art, the utility model provides a kind of primary air injection volume that increases, and improves the thermal efficiency of burner, reduces the harmful smoke discharging, delicate structure, lower-cost a kind of many induction tunnels burner.

For realizing above-mentioned purpose, the technical scheme that the utility model adopts is: a kind of many induction tunnels burner, and it is covered by interior ring fire, external ring fire cover, external ring fire cover seat; The blast tube lid, dormant bolt, burner, outer ring fire combustion gas premixer, interior ring fire induction tunnel; The deceleration net, interior ring fire nozzle, outer ring fire induction tunnel, outer shroud fire-fighting mouth, base; Closing bolt, technology plug, interior ring fire inlet suction port, outer ring fire inlet suction port, compositions such as outer ring fire premix gas passage.

Interior ring fire air inlet screw is arranged on the described base, interior ring fire blast tube, interior ring fire nozzle is installed screw, outer ring fire air inlet screw, outer ring fire blast tube, outer shroud fire-fighting mouth is installed screw, and the technology plug is installed screw; Interior ring fire air inlet screw, interior ring fire blast tube, interior ring fire nozzle is installed screw UNICOM; Interior ring fire inlet suction port is installed in the interior ring fire air inlet screw; The ring fire nozzle was installed in the screw in interior ring fire nozzle was installed in; Outer ring fire air inlet screw, outer ring fire blast tube, outer shroud fire-fighting mouth is installed screw UNICOM; Outer ring fire inlet suction port is installed in the outer ring fire air inlet screw; Outer shroud fire-fighting mouth is installed in outer shroud fire-fighting mouth and installs in the screw; The technology plug is installed in the technology plug and installs in the screw; Closing bolt burner is fixed on the base; There is an interior ring fire induction tunnel at the burner center, and is coaxial with interior ring fire nozzle; Having a plurality of specifications identical is initial point with the burner center, along the outer ring fire induction tunnel of circle distribution, their end all with outer ring fire combustion gas premixer UNICOM, the other end is relative with outer shroud fire-fighting mouth downwards, and is coaxial with corresponding nozzle; The deceleration net is installed in the interior ring fire induction tunnel; The external ring fire cover seat is placed on the burner; The blast tube lid is placed on the external ring fire cover seat; Dormant bolt puts together on external ring fire cover seat and blast tube lid together, forms outer ring fire combustion gas premixer and outer ring fire premix gas passage; External ring fire cover is placed on the external ring fire cover seat; Interior ring fire lid is placed on blast tube and covers.

Compare with prior art and like product, the advantage of the utility model is:

1, a nozzle is resolved into a plurality of nozzles, an induction tunnel is divided into a plurality of induction tunnels, under the situation of not acquiring auxiliary equipment, only relies on the energy of combustion gas self, has increased the injection volume of primary air, has improved combustion efficiency, has reached the purpose of energy-saving and emission-reduction.

Under the situation that power equates, the flow of combustion gas equates that then the nozzle bore area equates; If the aperture of single-nozzle is D, the quantity of small nozzle is N (N>=2), and the aperture is d _N, can derive

The difference of N small nozzle hole and single-nozzle hole girth is:

The ratio of girth is: Therefore, the area that the combustion gas that the area sum that the combustion gas of a plurality of small nozzle ejections contacts with air sprays greater than single-nozzle contacts with air is so the air capacity of a plurality of small nozzle injections is greater than the air capacity of a nozzle injection;

2, the combustion gas premix gas that comes out from a plurality of induction tunnels burns after converging, and can make combustion gas premix atmospheric pressure even, flameholding;

3, use a plurality of induction tunnels to make the aperture of nozzle diminish, the specification of each induction tunnel diminishes, and the volume of burner diminishes thereupon;

4, use the deceleration net, leave flame in the time of can preventing fuel gas buring, tempering when closing fire, sudden and violent ring;

5, overall structure is exquisite, compact, the parts good manufacturability, and easy to manufacture, cost is lower.

Description of drawings:

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

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the vertical view of Fig. 1.

Fig. 4 is that the A-A of Fig. 1 is to cutaway view.

Fig. 5 is that the B-B of Fig. 1 is to cutaway view.

Fig. 6 is that the C-C of Fig. 1 is to cutaway view.

Fig. 7 is that the D-D of Fig. 1 is to cutaway view.

Fig. 8 is that the E-E of Fig. 2 is to cutaway view.

Fig. 9 is that the F-F of Fig. 3 is to revolved sectional view.

Figure 10 is the structural representation of burner.

Figure 11 is the vertical view of Figure 10.

Figure 12 is the left view of Figure 10.

Figure 13 is that the A-A of Figure 10 is to cutaway view.

Figure 14 is that the B-B of Figure 11 is to cutaway view.

Figure 15 is that the C-C of Figure 12 is to cutaway view.

Figure 16 is the structural representation of base.

Figure 17 is the vertical view of Figure 16.

Figure 18 is the left view of Figure 16.

Figure 19 is that the A-A of Figure 16 is to cutaway view.

Figure 20 is that the B-B of Figure 16 is to cutaway view.

Figure 21 is that the C-C of Figure 16 is to revolved sectional view.

Figure 22 is that the D-D of Figure 17 is to cutaway view.

Figure 23 is that the E-E of Figure 17 is to cutaway view.

Figure 24 is that the F-F of Figure 17 is to cutaway view.

Figure 25 is the external ring fire cover structural representation.

Figure 26 is that the A-A of Figure 25 is to revolved sectional view.

Figure 27 is the structural representation of external ring fire cover seat.

Figure 28 is that the A-A of Figure 27 is to revolved sectional view.

Figure 29 is the structural representation of blast tube lid.

Figure 30 is the left view of Figure 29.

Figure 31 is the rearview of Figure 29.

Figure 32 is that the A-A of Figure 29 is to cutaway view.

Figure 33 is that the B-B of Figure 31 is to cutaway view.

Figure 34 is the structural representation of interior ring fire lid.

Figure 35 is that the A-A of Figure 34 is to cutaway view.

Figure 36 is the structural representation of the net that slows down.

Figure 37 is the left view of Figure 36.

Figure 38 is outer (interior) ring fire nozzle sketch map.

Figure 39 is that the A-A of Figure 38 is to cutaway view.

The specific embodiment:

The utility model is an example with 4 outer ring fire induction tunnels, and embodiment further describes the utility model below in conjunction with accompanying drawing.

Like Fig. 1-shown in Figure 39, a kind of many induction tunnels burner, it is by interior ring fire lid 1, external ring fire cover 2, external ring fire cover seat 3; Blast tube lid 4, dormant bolt 5, burner 6, outer ring fire combustion gas premixer 7, interior ring fire induction tunnel 8; Slow down and net 9, interior ring fire nozzle 10, outer ring fire induction tunnel 11, outer shroud fire-fighting mouth 12, base 13; Closing bolt 14, technology plug 15, interior ring fire inlet suction port 16, outer ring fire inlet suction port 17, outer ring fire premix gas passage 18 compositions such as grade.

Interior ring fire air inlet screw 22 is arranged on the described base 13, interior ring fire blast tube 23, interior ring fire nozzle is installed screw 24, outer ring fire air inlet screw 25, outer ring fire blast tube 26, outer shroud fire-fighting mouth is installed screw 27, and the technology plug is installed screw 28; Interior ring fire air inlet screw 22, interior ring fire blast tube 23, interior ring fire nozzle is installed screw 24 UNICOMs; Interior ring fire inlet suction port 16 is installed in the interior ring fire air inlet screw 22; The ring fire nozzle was installed in the screw 24 in interior ring fire nozzle 10 was installed in; Outer ring fire air inlet screw 25, outer ring fire blast tube 26, outer shroud fire-fighting mouth is installed screw 27 UNICOMs; Outer ring fire inlet suction port 17 is installed in the outer ring fire air inlet screw 25; Outer shroud fire-fighting mouth 12 is installed in outer shroud fire-fighting mouth and installs in the screw 27; Technology plug 15 is installed in the technology plug and installs in the screw 28; Closing bolt 14 burner 6 is fixed on the base 13; There is an interior ring fire induction tunnel 8 at burner 6 centers, and are coaxial with interior ring fire nozzle 10; Having 4 specifications identical is initial point with burner 6 centers, along the outer ring fire induction tunnel 11 of circle distribution, their end all with outer ring fire combustion gas premixer 7 UNICOMs, the other end is relative with outer shroud fire-fighting mouth 12 downwards, and is coaxial with corresponding nozzle; The net 9 that slows down is installed in the interior ring fire induction tunnel 11; External ring fire cover seat 3 is placed on the burner 6; Blast tube lid 4 is placed on the external ring fire cover seat 3; Dormant bolt 5 puts together on external ring fire cover seat 3 and blast tube lid 4 together, forms outer ring fire combustion gas premixer 7 and outer ring fire premix gas passage 18; External ring fire cover 2 is placed on the external ring fire cover seat 3; Interior ring fire lid 1 is placed on the blast tube lid 4.

After the utility model installs; With metal tube interior ring fire inlet suction port 15, outer ring fire inlet suction port 16 are connected together with gas control valve; Open gas control valve, the combustion gas of ring fire blast tube 22 sprays from interior ring fire nozzle 10 in getting into, premix in the ring fire induction tunnel 8 in the injection air gets into; Through the net 9 that slows down, the fire hole from interior ring fire fire lid 1 flows out burning; The combustion gas that gets into outer ring fire blast tube 26 sprays from 4 outer shroud fire-fighting mouths 12; The injection air gets into and gets into outer shroud fire combustion gas premixer 7 in the corresponding outer ring fire induction tunnel 11 behind the premix; Through outer ring fire premix gas passage 21, the fire hole from external ring fire cover 2 flows out burning.

The utility model has been owing to increased the primary air injection volume, thus improved the thermal efficiency of burner greatly, thus reduced the discharging of harmful smoke, its concrete test data such as following table:

Test data (operative norm GB16410-2007)

Can find out from last table no matter the utility model uses natural gas or liquefied gas, it is all very abundant to burn, and burning back discharge of harmful gases amount is all well below GB.

Claims

1. induction tunnel burner more than a kind is characterized in that: ring fire lid in comprising, external ring fire cover, external ring fire cover seat, blast tube lid; Dormant bolt, burner, outer ring fire combustion gas premixer, interior ring fire induction tunnel; Interior ring fire nozzle, outer ring fire induction tunnel, outer shroud fire-fighting mouth, base; Closing bolt, technology plug, interior ring fire inlet suction port, outer ring fire inlet suction port and outer ring fire premix gas passage; Interior ring fire air inlet screw is arranged on the described base, interior ring fire blast tube, interior ring fire nozzle is installed screw, outer ring fire air inlet screw, outer ring fire blast tube, outer shroud fire-fighting mouth is installed screw, and the technology plug is installed screw; Interior ring fire air inlet screw, interior ring fire blast tube, interior ring fire nozzle is installed screw UNICOM; Interior ring fire inlet suction port is installed in the interior ring fire air inlet screw; The ring fire nozzle was installed in the screw in interior ring fire nozzle was installed in; Outer ring fire air inlet screw, outer ring fire blast tube, outer shroud fire-fighting mouth is installed screw UNICOM; Outer ring fire inlet suction port is installed in the outer ring fire air inlet screw; Outer shroud fire-fighting mouth is installed in outer shroud fire-fighting mouth and installs in the screw; The technology plug is installed in the technology plug and installs in the screw; Closing bolt burner is fixed on the base; There is an interior ring fire induction tunnel at the burner center, and is coaxial with interior ring fire nozzle; Having a plurality of specifications identical is initial point with the burner center, along the outer ring fire induction tunnel of circle distribution, their end all with outer ring fire combustion gas premixer UNICOM, the other end is relative with outer shroud fire-fighting mouth downwards, and is coaxial with corresponding nozzle; The external ring fire cover seat is placed on the burner; The blast tube lid is placed on the external ring fire cover seat; Dormant bolt puts together on external ring fire cover seat and blast tube lid together, forms outer ring fire combustion gas premixer and outer ring fire premix gas passage; External ring fire cover is placed on the external ring fire cover seat; Interior ring fire lid is placed on blast tube and covers.

2. a kind of many induction tunnels burner as claimed in claim 1 is characterized in that: described outer ring fire induction tunnel is four.

3. a kind of many induction tunnels burner as claimed in claim 1 is characterized in that: be provided with the deceleration net in the ring fire induction tunnel in described.