CN106524156B

CN106524156B - Mixed air inlet device of premixed combustion gas furnace end

Info

Publication number: CN106524156B
Application number: CN201611070085.6A
Authority: CN
Inventors: 李华胜; 黄思亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-26
Filing date: 2016-11-26
Publication date: 2023-09-19
Anticipated expiration: 2036-11-26
Also published as: CN106524156A

Abstract

The invention discloses a mixed air inlet device of a premixed combustion gas furnace end, wherein a gas channel of central firepower and outer ring firepower of the product is a gas mixed air inlet handle with a comprehensive structure, a central firepower mixed gas air supply hollow column is arranged in the middle, an outer ring firepower mixed gas distribution annular groove can be used for selecting whether a mixed gas annular body split cover is additionally arranged, when fire is regulated to only central firepower for combustion, only a gas inlet joint is used for inlet, because the central firepower air supply mixed gas channel and the outer ring firepower air supply mixed gas channel are separated, an exhaust fan is in a working air inlet state, gas of the central firepower air supply mixed gas channel does not flow back to the outer ring firepower air supply mixed gas channel (namely, no mutual cross gas), a fire hole of the outer ring fire distribution cover is only sprayed out of air, a wind-proof wall is built for central firepower combustion, the central firepower combustion is prevented from being biased by external wind, and the other side firepower is reduced, and meanwhile, the air sprayed out by the outer ring can supply oxygen for the central firepower, and the combustion is more sufficient.

Description

Mixed air inlet device of premixed combustion gas furnace end

Technical Field

The invention relates to a gas furnace, in particular to a mixed air inlet device of a premixed combustion gas furnace end.

Background

1. The prior gas furnace is provided with air inlet holes in the middle and the side wall of the furnace head, when in combustion, air is taken away from the holes and mixed with burning flame, so that the burning flame is fully provided with oxygen, and the flame is blue, and the mixing proportion of air and gas is not in direct proportion due to different batches of air sources or different air pressures in peak periods (such as at night), the fire power is low after combustion, the color of the gas of the fire is yellow, the oxygen is obviously insufficient, and even black smoke is generated when serious; 2. in the combustion process of the existing natural gas mixing gas furnace, when wind blows from one side, the fire is pressed to one side (runs to one side), so that partial fire is caused, part of the bottom of the pot body cannot be combusted, and even the fire is blown out.

Disclosure of Invention

In order to solve the technical problems, the invention provides the mixed air inlet device of the premixed combustion gas furnace end, which has the advantages of simple structure, uniform oxygen mixing, full combustion after mixing and strong combustion firepower, and is characterized in that air and fuel gas are mixed in proportion and then are sprayed and combusted on the fire cover.

The scheme for solving the technical problems is as follows:

the mixed air inlet device of the premixed combustion gas burner comprises a burner base (1), wherein a gas mixed air inlet handle (10) extends from the burner base (1), an air inlet (11) is formed in the end part of the gas mixed air inlet handle (10), at least two layers of mixed air conveying channels (2) are arranged in the gas mixed air inlet handle, and the two layers of mixed air conveying channels (2) are respectively a central firepower air supply mixed air channel (21) and an outer ring firepower air supply mixed air channel (22); an exhaust fan (14) is connected to the air inlet (11), and an air outlet of the exhaust fan (14) is aligned to a port of a central firepower air supply mixed gas channel (21) and a port of an outer ring firepower air supply mixed gas channel (22); a first gas inlet connector (211) is arranged on the side wall of the central firepower gas supply mixed gas channel (21); a second gas inlet joint (221) is arranged on the side wall of the outer ring firepower gas supply mixed gas channel (22); the front face of the furnace end base (1) is provided with an outer ring fire mixed gas distribution annular groove (12) close to the edge, the middle is provided with a central fire mixed gas supply hollow column (13), the central fire mixed gas supply hollow column (13) is communicated with a central fire gas supply mixed gas channel (21), and the outer ring fire mixed gas distribution annular groove (12) is communicated with an outer ring fire gas supply mixed gas channel (22).

Further: the top of the central firepower mixed gas supply hollow column (13) is fixed with a central fire dividing cover (3).

Further: the central fire gas mixture supply hollow column (13) comprises a central upper air hole (131) and an annular upper air hole (132) positioned at the periphery of the central upper air hole (131), wherein one of the central upper air hole (131) or the annular upper air hole (132) is communicated with the central fire gas mixture supply channel (21) or the central upper air hole (131) and the annular upper air hole (132) are both communicated with the central fire gas mixture supply channel (21).

Further: the annular upper air hole (132) is communicated with the central fire air supply mixed gas channel (21), a central flame spraying cover I (4) is fixed at the top of the annular upper air hole (132), an annular groove (41) which is matched with the annular upper air hole (132) for air supply is arranged on the back surface of the central flame spraying cover I (4), and a flame spraying hole I (42) is arranged at the top of the annular groove (41); the middle of the back surface of the first central flame spraying cover (4) is downwards extended to form a ring column (43) which is matched with the central upper air hole (131) and is used for fixing the first central flame spraying cover (4), and the first central flame spraying cover (4) can only be matched with the annular upper air hole (132).

Further: the central upper air hole (131) is communicated with the central fire power air supply mixed gas channel (21), a central fire spraying cover II (5) is fixed at the top of the central upper air hole (131), a concave part (51) is arranged in the middle of the back surface of the central fire spraying cover II (5), and a fire spraying hole II (52) is arranged at the top of the concave part (51); the edge of the reverse side surrounding concave part (51) of the center fire spraying cover II (5) is extended with a ring foot (53) which is matched with the annular upper air hole (132) to fix the center fire spraying cover II (5), and the center fire spraying cover II (5) can only be matched with the center upper air hole (131).

Further: the central upper air hole (131) and the annular upper air hole (132) are communicated with the central firepower air supply mixed gas channel (21), the central upper air hole (131) and the annular upper air hole (132) are fixedly provided with a central flame spraying cover III (6) together, a concave air cavity (61) corresponding to the central upper air hole (131) is arranged in the middle of the back surface of the central flame spraying cover III (6), and a plurality of first flame outlets (62) are arranged at the top of the concave air cavity (61); the back surface of the center flame spraying cover III (6) is provided with a surrounding groove (63) corresponding to the surrounding concave air cavity (61) and the annular upper air hole (132), and the top of the surrounding groove (63) is provided with a plurality of flame outlet holes II (64); the concave air cavity (61) and the surrounding groove (63) are separated by a surrounding annular plate (611).

Further: the central fire power gas supply mixed gas channel (21) is smaller than the outer ring fire power gas supply mixed gas channel (22).

Further: an outer ring fire dividing cover (7) is fixed on the outer ring fire mixed gas distribution annular groove (12). Further: the upper cover of the outer ring firepower mixed gas distribution annular groove (12) is tightly fixed with a mixed gas ring body split cover (8), and a plurality of air injection holes (81) are formed in the annular surface of the mixed gas ring body split cover (8); an outer ring fire dividing cover (7) is fixed on the mixed gas ring body split cover (8).

Further: the middle of the mixed gas ring body split cover (8) is provided with a central hole, the edge of the central hole is also provided with a first annular convex edge (801) which extends upwards, and a second annular convex edge (802) which extends downwards; a convex ring (803) is protruded on the back surface of the mixed gas ring body split flow cover (8) close to the edge, and a back surface ring body concave part (804) is formed between the convex ring (803) and a circular ring convex edge II (802); the front edge of the mixed gas ring body split flow cover (8) is provided with a surrounding edge (805) in a protruding mode, the surrounding edge (805) is also provided with a flanging (806) in an extending and bending mode, and a clamping groove (807) is formed between the flanging (806) and the convex ring (803); a front ring body concave part (808) is formed between the surrounding edge (805) and the circular ring convex part I (801), the front ring body concave part (808) corresponds to the back ring body concave part (804), an air injection hole (81) is formed in the middle of the front ring body concave part (808), the air injection hole (81) is also positioned in the middle of the back ring body concave part (804), the air injection hole (81) enables the front ring body concave part (808) to be communicated with the back ring body concave part (804), and the foot body of the outer ring fire dividing cover (7) is positioned in the front ring body concave part (808).

The mixing air inlet device of the premixed combustion gas burner has the beneficial effects that: 1. the gas mixing inlet handle has the advantages that the structure is reasonable, the practicability is high, the gas channels of the central firepower and the outer ring firepower are gas mixing inlet handles with a comprehensive structure, and one gas mixing inlet handle is internally provided with two inlet channels, so that the production cost is reduced, and the installation is convenient; 2. the central fire mixed gas supply hollow column can be provided with a central upper air hole or an annular upper air hole for air supply during production, and can also be provided with double upper air holes for air supply, and the central fire mixing hollow column can be selected according to the needs of customers and matched with different central fire spraying covers according to different upper air hole channels; 3. the outer ring fire mixed gas distribution annular groove can select whether a mixed gas ring body split cover is added or not, if not, the outer ring fire distribution cover is directly fixed on the outer ring fire mixed gas distribution annular groove, if so, the mixed gas ring body split cover is firstly fixed on the outer ring fire mixed gas distribution annular groove, and then the outer ring fire distribution cover is fixed on the mixed gas ring body split cover, so that the mixed gas just rushed up from the bottom of the outer ring fire mixed gas distribution annular groove can be temporarily pressed in the outer ring fire mixed gas distribution annular groove by the mixed gas ring body split cover, the buffer effect is achieved, the mixed gas is led to travel towards two sides, the air pressure of the whole outer ring fire mixed gas distribution annular groove is balanced, the air pressure sprayed out by each air jet hole is the same, the whole circle is consistent in balanced combustion, a phenomenon of big flame on one side and small flame on the other side can not occur; 4. because wind and gas are blown out from the furnace end, the internal wind pressure (air pressure) is sufficient, the flame sprayed out by the furnace is strong, when wind blows from one side, the flame cannot be pushed aside (run aside), the deviation of the flame cannot occur, the whole combustion area of the bottom of the pot body is uniform, and the flame cannot be blown out easily; 5. because the gas inlet connector I and the gas inlet connector II are respectively connected with a gas pipe, when the fire is regulated to only central fire power for combustion (the outer ring does not have fire), only the gas inlet connector I is used for air, because the central fire power air supply mixed gas channel and the outer ring fire power air supply mixed gas channel are separated, the exhaust fan is in a working air inlet state, the gas of the central fire power air supply mixed gas channel does not flow back to the outer ring fire power air supply mixed gas channel (namely, the gas cannot cross air mutually), only air is sprayed out from the fire hole of the outer ring fire dividing cover of the outer ring, a windproof wall is built for central fire combustion, the phenomenon that the central fire power is blown out (blown out or blown down) by the outer air or the fire is blown to one side is prevented, and the fire on the other side is reduced is avoided, meanwhile, the central fire is oxygenated by the air sprayed out from the outer ring, and the combustion is more sufficient.

Drawings

FIG. 1 is a perspective view of a burner base of the product of the present invention;

FIG. 2 is a perspective view of the burner base of the product of the present invention;

FIG. 3 is a perspective view of the burner base of the product of the present invention;

FIG. 4 is a perspective view of the burner base of the product of the present invention;

FIG. 5 is a bottom view of the burner base of the present invention with only the central upper air hole communicating with the central fire air supply mixed gas passage;

FIG. 6 is a bottom view of the burner base of the present invention with only the annular upper air holes communicating with the central fire air supply mixed gas channel;

FIG. 7 is a bottom view of the product burner base of the present invention with the central upper air holes and annular upper air holes all in communication with the central fire air supply mixture channel;

FIG. 8 is a cross-sectional view of a second product center flame cap of the present invention;

FIG. 9 is a cross-sectional view of a first product center flame cap of the present invention;

FIG. 10 is a cross-sectional view of a center fire cap third of the product of the present invention;

FIG. 11 is a perspective view of the outer ring fire dividing cover of the product of the invention;

FIG. 12 is a perspective view of the outer ring fire dividing cover of the product of the invention;

FIG. 13 is a perspective view of a gas mixing annulus split cover of the present invention;

FIG. 14 is a cross-sectional view of a gas mixing annulus split cover of the present invention;

FIG. 15 is a perspective view of the product of the present invention with a burner base and an outer ring fire dividing cover;

FIG. 16 is a perspective view of the product of the present invention having a burner base and a gas mixture ring split cover;

FIG. 17 is a perspective view of the product of the present invention having a burner base, a gas mixture ring split cover, and an outer ring split cover;

FIG. 18 is a front view of the burner base of the product of the present invention;

FIG. 19 is a schematic view of the integrated structure of the burner base and the controller of the product of the present invention.

Detailed Description

The mixed air inlet device of the premixed combustion gas burner comprises a burner base 1, a gas mixed air inlet handle 10 extends from the burner base 1, an air inlet 11 is arranged at the end part of the gas mixed air inlet handle 10, at least two layers of mixed air conveying channels 2 are arranged in the gas mixed air inlet handle, the two layers of mixed air conveying channels 2 are respectively a central firepower air supply mixed air channel 21 and an outer firepower air supply mixed air channel 22, the central firepower air supply mixed air channel (21) is arranged at the upper layer, and the outer firepower air supply mixed air channel (22) is arranged at the lower layer; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 close to the edge, the middle is provided with a central fire mixed gas supply hollow column 13, the central fire mixed gas supply hollow column 13 is communicated with a central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with an outer ring fire gas supply mixed gas channel 22.

The top of the central fire mixed gas supply hollow column 13 is fixed with a central fire dividing cover 3.

The central fire gas mixture supply hollow column 13 comprises a central gas hole 131 and an annular gas hole 132 positioned at the periphery of the central gas hole 131, wherein one of the central gas hole 131 and the annular gas hole 132 is communicated with the central fire gas mixture supply channel 21 or both the central gas hole 131 and the annular gas hole 132 are communicated with the central fire gas mixture supply channel 21.

The annular upper air hole 132 is communicated with the central fire air supply mixed gas channel 21, a central flame spraying cover I4 is fixed at the top of the annular upper air hole 132, an annular groove 41 which is matched with the annular upper air hole 132 for air supply is arranged on the back surface of the central flame spraying cover I4, and a flame spraying hole I42 is arranged at the top of the annular groove 41; the middle of the back surface of the first central flame spraying cover 4 is downwards extended to form a ring column 43 which is matched with the central upper air hole 131 and is used for fixing the first central flame spraying cover 4, and the first central flame spraying cover 4 can only be matched with the annular upper air hole 132.

The central upper air hole 131 is communicated with the central fire power air supply mixed gas channel 21, a central fire spraying cover II 5 is fixed at the top of the central upper air hole 131, a concave part 51 is arranged in the middle of the back surface of the central fire spraying cover II 5, and a fire spraying hole II 52 is arranged at the top of the concave part 51; the edge of the back surface surrounding the concave part 51 of the second center flame spraying cover 5 is extended with a ring foot 53 which is matched with the ring-shaped upper air hole 132 to fix the second center flame spraying cover 5, and the second center flame spraying cover 5 can only be matched with the upper center air hole 131 for use.

The central upper air hole 131 and the annular upper air hole 132 are communicated with the central firepower air supply mixed gas channel 21, the central upper air hole 131 and the annular upper air hole 132 are jointly fixed with a central flame spraying cover III 6, a concave air cavity 61 corresponding to the central upper air hole 131 is arranged in the middle of the back surface of the central flame spraying cover III 6, and a plurality of first flame outlets 62 are formed in the top of the concave air cavity 61; the back surface of the center flame spraying cover III 6 is provided with a surrounding groove 63 corresponding to the surrounding concave air cavity 61 and the annular upper air hole 132, and the top of the surrounding groove 63 is provided with a plurality of flame outlets II 64; the concave air chamber 61 and the surrounding groove 63 are separated by a surrounding annular plate 611.

The center fire air feed mixed gas passage 21 is smaller than the outer ring fire air feed mixed gas passage 22.

An outer ring fire dividing cover 7 is fixed on the outer ring fire mixed gas distribution annular groove 12.

The outer ring firepower mixed gas distribution annular groove 12 is tightly covered and fixed with a mixed gas ring body split cover 8, and a plurality of air injection holes 81 are formed in the annular surface of the mixed gas ring body split cover 8; an outer ring fire dividing cover 7 is fixed on the mixed gas ring body split cover 8.

Further: the middle of the gas mixing ring body split cover 8 is provided with a central hole, the edge of the central hole is also provided with a first annular convex edge 801 which extends upwards, and a second annular convex edge 802 which extends downwards; a convex ring 803 is protruded near the edge on the back surface of the mixed gas ring body split cover 8, and a back surface ring body concave part 804 is formed between the convex ring 803 and a second circular ring convex edge 802; a surrounding edge 805 is protruded on the front edge of the split cover 8 of the mixed gas ring body, a flange 806 is extended and bent outwards and downwards on the surrounding edge 805, and a clamping groove 807 is formed between the flange 806 and the convex ring 803; a front ring body concave portion 808 is formed between the surrounding edge 805 and the circular ring convex edge 801, the front ring body concave portion 808 corresponds to the back ring body concave portion 804, a gas injection hole 81 is formed in the middle of the front ring body concave portion 808, the gas injection hole 81 is also positioned in the middle of the back ring body concave portion 804, the gas injection hole 81 enables the front ring body concave portion 808 to be communicated with the back ring body concave portion 804, and the foot body of the outer ring fire dividing cover 7 is positioned in the front ring body concave portion 808; the clamping groove 807 is clamped into the outer annular edge of the top of the burner base of the outer annular fire mixed gas distribution annular groove 12, the second annular convex edge 802 is inserted into the inner side wall of the outer annular fire mixed gas distribution annular groove 12 to be tightly attached, and the convex ring 803 is inserted into the inner side wall of the outer annular fire mixed gas distribution annular groove 12 to be tightly attached (the convex ring 803 can also be inserted into the outer side wall of the outer annular fire mixed gas distribution annular groove 12 to be tightly attached according to the design).

Most manufacturers are to protect the sales market, when the outer ring fire dividing cover 7 is manufactured, the space between the inner ring feet and the outer ring feet on the back side is self-determined (the space is the size containing the wall thickness of the ring feet), and the outer ring fire dividing covers 7 of other manufacturers are distinguished, but the calibers of the outer ring fire dividing covers 7 are not large, and generally differ by 1 millimeter to 1 centimeter, the front ring concave part 808 of the mixed gas ring fire dividing cover 8 can be matched with the outer ring fire dividing covers with different calibers, so that the caliber errors are solved, the outer ring fire dividing covers 7 with various calibers with different specifications are applicable, and the outer ring fire dividing covers 7 of most manufacturers can be commonly used; for example: the product sets the inner width of the frontal ring recess 808 as: 2.5 cm, the inner ring leg and the outer ring leg of the outer ring fire dividing cover 7 are applicable as long as the distance between the inner ring leg and the outer ring leg is smaller than 2.5 cm, and the wall thickness of the ring leg and the distance between the gas notch of the inner ring leg and the outer ring leg are not limited.

The first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are jointly connected with a gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with a controller 104 through wires, and the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, a battery 107 and an exhaust fan rotating speed controller 121 through wires.

The suction fan 14 is connected to the controller 104 by electrical wiring.

The intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201.

The controller 104 is connected with an external power wire 109 through a wire, and the external power wire 109 can supply power for alternating current or direct current; the controller 104 may be separately connected to an external power cord 109, or may be connected to the battery 107 and the power cord 109 together.

The gas electric switch valve 103 is a gas furnace electromagnetic valve.

Because the controller 104 is connected with the exhaust fan rotating speed controller 121, the exhaust fan rotating speed controller 121 is fixed on the furnace body, the exhaust fan rotating speed controller 121 controls the rotating speed of the exhaust fan 14 through key or rotary operation, and when the device is used, if the burning yellow or obvious mixing ratio of the fuel gas and the air is poor, the rotating speed of the exhaust fan 14 can be controlled through key adjustment of the exhaust fan rotating speed controller 121 according to different fuel gas types, fuel gas manufacturers, fuel gas quality, fuel gas pressure, production batches and the like, and the optimal burning state (namely, the flame reaches the bluest state) is realized through controlling the acceleration/deceleration of the rotating speed.

Because the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with the first gas pipe 100 and the second gas pipe 101, when the fire is regulated to only central fire power for combustion (the outer ring is free of fire), only the first gas inlet connector 211 is used for air inlet, and because the central fire power air supply mixed gas channel 21 and the outer ring fire power air supply mixed gas channel 22 are separated, the exhaust fan 14 is in a working air inlet state, the fuel gas of the central fire power air supply mixed gas channel 21 does not flow back to the outer ring fire power air supply mixed gas channel 22 (i.e. can not cross air mutually), the fire holes of the outer ring fire dividing cover 7 are only sprayed with air, a wind-proof wall is built for central fire combustion, the phenomenon that the central fire power combustion is biased (askew or is blown down) or the fire is burnt to one side is prevented, and the fire on the other side is reduced is prevented, and meanwhile, the air sprayed out by the outer ring can oxygen-enriched for the central fire power, and the combustion is more sufficient.

Specific example 1:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 close to the edge, the middle is provided with a central fire mixed gas supply hollow column 13, the central fire mixed gas supply hollow column 13 is communicated with a central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with an outer ring fire gas supply mixed gas channel 22; the top of the central firepower mixed gas supply hollow column 13 is fixed with a central fire dividing cover 3; an outer ring fire dividing cover 7 is fixed on the outer ring fire mixed gas distribution annular groove 12; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, a battery 107 and an exhaust fan rotating speed controller 121 through electric wires, the exhaust fan rotating speed controller 121 is fixed on a furnace body, the controller 104 is powered by the battery 107, and the battery 107 is fixedly installed on the furnace body; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Specific example 2:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 close to the edge, the middle is provided with a central fire mixed gas supply hollow column 13, the central fire mixed gas supply hollow column 13 is communicated with a central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with an outer ring fire gas supply mixed gas channel 22; the top of the central firepower mixed gas supply hollow column 13 is fixed with a central fire dividing cover 3; the outer ring firepower mixed gas distribution annular groove 12 is tightly covered and fixed with a mixed gas ring body split cover 8, and a plurality of air injection holes 81 are formed in the annular surface of the mixed gas ring body split cover 8; the mixed gas ring body split cover 8 is fixedly provided with an outer ring fire dividing cover 7, gas is sprayed out from the gas spraying holes 81 and then enters the air cavity on the back surface of the outer ring fire dividing cover 7, then the gas is sprayed out from the fire holes of the outer ring fire dividing cover 7 for combustion, the mixed gas ring body split cover 8 presses the mixed gas just rushed up from the bottom of the tank into an outer ring fire mixed gas distribution annular groove 12 to play a buffering role, the mixed gas moves towards two sides, the gas pressure of the whole outer ring fire mixed gas distribution annular groove 12 is balanced, the gas pressure sprayed out from each gas spraying hole 81 is the same, the whole circle of fire is consistent during combustion, the balanced combustion does not occur the phenomena of large fire on one side and small fire on the other side; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, an external power wire 109 and an exhaust fan rotating speed controller 121 through electric wires, the exhaust fan rotating speed controller 121 is fixed on a furnace body, and the controller 104 is powered by external alternating current; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Specific example 3:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 near the edge, a central fire mixed gas supply hollow column 13 is erected in the middle, the central fire mixed gas supply hollow column 13 comprises a central upper air hole 131 and an annular upper air hole 132 positioned at the periphery of the central upper air hole 131, the central upper air hole 131 is communicated with a central fire gas supply mixed gas channel 21, the annular upper air hole 132 is not communicated with the central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with the outer ring fire gas supply mixed gas channel 22; a second central flame spraying cover 5 is fixed on the top of the central upper air hole 131, a concave part 51 is arranged in the middle of the back surface of the second central flame spraying cover 5, and a second flame spraying hole 52 is arranged on the top of the concave part 51; the back surface of the second center flame spraying cover 5 extends around the edge of the concave part 51 to be matched with the annular upper air hole 132 to fix the annular foot 53 of the second center flame spraying cover 5, and the second center flame spraying cover 5 can only be matched with the central upper air hole 131 for use; the outer ring firepower mixed gas distribution annular groove 12 is tightly covered and fixed with a mixed gas ring body split cover 8, and a plurality of air injection holes 81 are formed in the annular surface of the mixed gas ring body split cover 8; the mixed gas ring body split cover 8 is fixedly provided with an outer ring fire dividing cover 7, and gas is sprayed out from the gas spraying holes 81 and then enters the air cavity on the back surface of the outer ring fire dividing cover 7, and then is sprayed out from the fire holes of the outer ring fire dividing cover 7 for combustion; the mixed gas ring body split cover 8 presses the mixed gas just rushed from the tank bottom into the outer ring fire mixed gas distribution annular groove 12 to play a buffering role, so that the mixed gas moves to two sides, the air pressure of the whole outer ring fire mixed gas distribution annular groove 12 is balanced, the air pressure sprayed out by each air spraying hole 81 is the same, the fire of the whole circle is consistent during combustion, the combustion is balanced, and the phenomena of big fire on one side and small fire on the other side can not occur; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, an external power wire 109 and an exhaust fan rotating speed controller 121 through electric wires, and the controller 104 is powered by external alternating current; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Specific example 4:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 near the edge, a central fire mixed gas supply hollow column 13 is erected in the middle, the central fire mixed gas supply hollow column 13 comprises a central upper air hole 131 and an annular upper air hole 132 positioned at the periphery of the central upper air hole 131, the annular upper air hole 132 is communicated with a central fire gas supply mixed gas channel 21, the central upper air hole 131 is not communicated with the central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with the outer ring fire gas supply mixed gas channel 22; the top of the annular upper air hole 132 is fixedly provided with a central flame spraying cover I4, the back surface of the central flame spraying cover I4 is provided with an annular groove 41 which is matched with the annular upper air hole 132 for air supply, and the top of the annular groove 41 is provided with a flame spraying hole I42; the middle of the back surface of the first central flame spraying cover 4 is downwards extended with a ring column 43 which is matched with the central upper air hole 131 and is used for fixing the first central flame spraying cover 4, and the first central flame spraying cover 4 can only be matched with the annular upper air hole 132 for use; the outer ring firepower mixed gas distribution annular groove 12 is tightly covered and fixed with a mixed gas ring body split cover 8, and a plurality of air injection holes 81 are formed in the annular surface of the mixed gas ring body split cover 8; the mixed gas ring body split cover 8 is fixedly provided with an outer ring fire dividing cover 7, and gas is sprayed out from the gas spraying holes 81 and then enters the air cavity on the back surface of the outer ring fire dividing cover 7, and then is sprayed out from the fire holes of the outer ring fire dividing cover 7 for combustion; the mixed gas ring body split cover 8 presses the mixed gas just rushed from the tank bottom into the outer ring fire mixed gas distribution annular groove 12 to play a buffering role, so that the mixed gas moves to two sides, the air pressure of the whole outer ring fire mixed gas distribution annular groove 12 is balanced, the air pressure sprayed out by each air spraying hole 81 is the same, the fire of the whole circle is consistent during combustion, the combustion is balanced, and the phenomena of big fire on one side and small fire on the other side can not occur; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, an external power wire 109 and an exhaust fan rotating speed controller 121 through electric wires, and the controller 104 is powered by external alternating current; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Specific example 5:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 near the edge, a central fire mixed gas supply hollow column 13 is erected in the middle, the central fire mixed gas supply hollow column 13 comprises a central upper air hole 131 and an annular upper air hole 132 positioned at the periphery of the central upper air hole 131, the central upper air hole 131 and the annular upper air hole 132 are both communicated with a central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with the outer ring fire gas supply mixed gas channel 22; the top parts of the central upper air hole 131 and the annular upper air hole 132 are fixedly provided with a central flame spraying cover III 6, a concave air cavity 61 corresponding to the central upper air hole 131 is arranged in the middle of the back surface of the central flame spraying cover III 6, and a plurality of first flame outlets 62 are formed in the top part of the concave air cavity 61; the back surface of the center flame spraying cover III 6 is provided with a surrounding groove 63 corresponding to the surrounding concave air cavity 61 and the annular upper air hole 132, and the top of the surrounding groove 63 is provided with a plurality of flame outlets II 64; the concave air cavity 61 and the surrounding groove 63 are separated by a surrounding annular plate 611; the central air hole 131 corresponds to the concave air cavity 61, the fuel gas from the central air hole 131 burns on the first fire outlet hole 62, the annular upper air hole 132 corresponds to the surrounding groove 63, and the fuel gas from the annular upper air hole 132 burns on the second fire outlet hole 64; the outer ring firepower mixed gas distribution annular groove 12 is tightly covered and fixed with a mixed gas ring body split cover 8, and a plurality of air injection holes 81 are formed in the annular surface of the mixed gas ring body split cover 8; the mixed gas ring body split cover 8 is fixedly provided with an outer ring fire dividing cover 7, and gas is sprayed out from the gas spraying holes 81 and then enters the air cavity on the back surface of the outer ring fire dividing cover 7, and then is sprayed out from the fire holes of the outer ring fire dividing cover 7 for combustion; the mixed gas ring body split cover 8 presses the mixed gas just rushed from the tank bottom into the outer ring fire mixed gas distribution annular groove 12 to play a buffering role, so that the mixed gas moves to two sides, the air pressure of the whole outer ring fire mixed gas distribution annular groove 12 is balanced, the air pressure sprayed out by each air spraying hole 81 is the same, the fire of the whole circle is consistent during combustion, the combustion is balanced, and the phenomena of big fire on one side and small fire on the other side can not occur; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, an external power wire 109 and an exhaust fan rotating speed controller 121 through electric wires, and the controller 104 is powered by external alternating current; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Specific example 6:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 near the edge, a central fire mixed gas supply hollow column 13 is erected in the middle, the central fire mixed gas supply hollow column 13 comprises a central upper air hole 131 and an annular upper air hole 132 positioned at the periphery of the central upper air hole 131, the central upper air hole 131 and the annular upper air hole 132 are both communicated with a central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with the outer ring fire gas supply mixed gas channel 22; the top parts of the central upper air hole 131 and the annular upper air hole 132 are fixedly provided with a central flame spraying cover III 6, a concave air cavity 61 corresponding to the central upper air hole 131 is arranged in the middle of the back surface of the central flame spraying cover III 6, and a plurality of first flame outlets 62 are formed in the top part of the concave air cavity 61; the back surface of the center flame spraying cover III 6 is provided with a surrounding groove 63 corresponding to the surrounding concave air cavity 61 and the annular upper air hole 132, and the top of the surrounding groove 63 is provided with a plurality of flame outlets II 64; the concave air cavity 61 and the surrounding groove 63 are separated by a surrounding annular plate 611; the central air hole 131 corresponds to the concave air cavity 61, the fuel gas from the central air hole 131 burns on the first fire outlet hole 62, the annular upper air hole 132 corresponds to the surrounding groove 63, and the fuel gas from the annular upper air hole 132 burns on the second fire outlet hole 64; an outer ring fire dividing cover 7 is fixed on the outer ring fire mixed gas distribution annular groove 12; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, an external power wire 109 and an exhaust fan rotating speed controller 121 through electric wires, and the controller 104 is powered by external direct current; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Specific example 7:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 near the edge, a central fire mixed gas supply hollow column 13 is erected in the middle, the central fire mixed gas supply hollow column 13 comprises a central upper air hole 131 and an annular upper air hole 132 positioned at the periphery of the central upper air hole 131, the central upper air hole 131 is communicated with a central fire gas supply mixed gas channel 21, the annular upper air hole 132 is not communicated with the central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with the outer ring fire gas supply mixed gas channel 22; a second central flame spraying cover 5 is fixed on the top of the central upper air hole 131, a concave part 51 is arranged in the middle of the back surface of the second central flame spraying cover 5, and a second flame spraying hole 52 is arranged on the top of the concave part 51; the back surface of the second center flame spraying cover 5 extends around the edge of the concave part 51 to be matched with the annular upper air hole 132 to fix the annular foot 53 of the second center flame spraying cover 5, and the second center flame spraying cover 5 can only be matched with the central upper air hole 131 for use; an outer ring fire dividing cover 7 is fixed on the outer ring fire mixed gas distribution annular groove 12; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, an external power wire 109 and an exhaust fan rotating speed controller 121 through electric wires, and the controller 104 is powered by external direct current; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Specific example 8:

the premixed combustion gas burner comprises a burner base 1, wherein a gas mixing inlet handle 10 extends from the burner base 1, an air inlet 11 is formed in the end part of the gas mixing inlet handle 10, at least two layers of mixed gas conveying channels 2 are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels 2 are respectively a central firepower gas supply mixed gas channel 21 and an outer ring firepower gas supply mixed gas channel 22; the air inlet 11 is connected with an exhaust fan 14, and an air outlet of the exhaust fan 14 is aligned to a central firepower air supply mixed gas channel 21 port and an outer ring firepower air supply mixed gas channel 22 port; a first gas inlet joint 211 is arranged on the side wall of the central firepower gas supply mixed gas channel 21; a second gas inlet joint 221 is arranged on the side wall of the outer ring firepower gas supply mixed gas channel 22; the front surface of the furnace end base 1 is provided with an outer ring fire mixed gas distribution annular groove 12 near the edge, a central fire mixed gas supply hollow column 13 is erected in the middle, the central fire mixed gas supply hollow column 13 comprises a central upper air hole 131 and an annular upper air hole 132 positioned at the periphery of the central upper air hole 131, the annular upper air hole 132 is communicated with a central fire gas supply mixed gas channel 21, the central upper air hole 131 is not communicated with the central fire gas supply mixed gas channel 21, and the outer ring fire mixed gas distribution annular groove 12 is communicated with the outer ring fire gas supply mixed gas channel 22; the top of the annular upper air hole 132 is fixedly provided with a central flame spraying cover I4, the back surface of the central flame spraying cover I4 is provided with an annular groove 41 which is matched with the annular upper air hole 132 for air supply, and the top of the annular groove 41 is provided with a flame spraying hole I42; the middle of the back surface of the first central flame spraying cover 4 is downwards extended with a ring column 43 which is matched with the central upper air hole 131 and is used for fixing the first central flame spraying cover 4, and the first central flame spraying cover 4 can only be matched with the annular upper air hole 132 for use; an outer ring fire dividing cover 7 is fixed on the outer ring fire mixed gas distribution annular groove 12; the first gas inlet connector 211 and the second gas inlet connector 221 are respectively connected with a first gas pipe 100 and a second gas pipe 101, the other ends of the first gas pipe 100 and the second gas pipe 101 are commonly connected with the same gas proportional control valve 102, the gas proportional control valve 102 is connected with a gas electric switch valve 103, the gas electric switch valve 103 is connected with an external gas supply pipe, the gas electric switch valve 103 is connected with a controller 104 through an electric wire, the controller 104 is respectively connected with an ignition needle 105, a flame monitoring needle 106, an external power wire 109 and an exhaust fan rotating speed controller 121 through electric wires, and the controller 104 is powered by external direct current; the exhaust fan 14 is connected with the controller 104 through an electric wire; the intersection of the bottom of the outer ring firepower mixed gas distribution annular groove 12 and the outer ring firepower gas supply mixed gas channel 22 is provided with a gas scattering and diverting column 201, so that the gas can travel to two sides of the outer ring firepower mixed gas distribution annular groove 12; the ignition needle 105 and the flame monitoring needle 106 are fixedly connected to the gas burner, and are correspondingly ignited and monitored with the flaming holes of the central flame distributing cover 3 or the outer ring flame distributing cover 7; because the central fire power is small, the required fuel gas is small, the outer ring fire power is large, and the required fuel gas is more, the central fire power gas supply mixed gas channel 21 is smaller than the outer ring fire gas supply mixed gas channel 22; when the ignition combustion is performed, a knob of the fuel gas proportional control valve 102 is twisted, the fuel gas proportional control valve 102 and the fuel gas electric switch valve 103 are opened to enable fuel gas to circulate through, the ignition needle 105 generates sparks, the flame monitoring needle 106 enters a monitoring state, the exhaust fan 14 starts to exhaust air, the fuel gas respectively enters the central firepower air supply mixed gas channel 21 and the outer ring firepower air supply mixed gas channel 22 through the fuel gas pipe 101, the fuel gas is mixed with air pumped by the exhaust fan 14 in the circulation process, and the fuel gas is sprayed out and then contacts with sparks to generate fire to burn; in the combustion process, if the combustion hotness or obvious mixing ratio of fuel gas and air is poor, the rotating speed of the exhaust fan 14 can be controlled by adjusting the key of the rotating speed controller 121 of the exhaust fan, and the oxygenation or the hypoxia can be realized by controlling the acceleration/deceleration of the rotating speed, so that the optimal combustion state (namely, the flame reaches the bluest state) is realized.

Claims

1. The utility model provides a mix air inlet unit of premixed combustion gas furnace end which characterized in that: the gas furnace end comprises a furnace end base (1), a gas mixing inlet handle (10) is extended on the furnace end base (1), an air inlet (11) is formed in the end part of the gas mixing inlet handle (10), at least two layers of mixed gas conveying channels (2) are arranged in the gas mixing inlet handle, and the two layers of mixed gas conveying channels (2) are respectively a central firepower gas supply mixed gas channel (21) and an outer ring firepower gas supply mixed gas channel (22); an exhaust fan (14) is connected to the air inlet (11), and an air outlet of the exhaust fan (14) is aligned to a port of a central firepower air supply mixed gas channel (21) and a port of an outer ring firepower air supply mixed gas channel (22); a first gas inlet connector (211) is arranged on the side wall of the central firepower gas supply mixed gas channel (21); a second gas inlet joint (221) is arranged on the side wall of the outer ring firepower gas supply mixed gas channel (22); the front surface of the furnace end base (1) is provided with an outer ring fire mixed gas distribution annular groove (12) close to the edge, the middle is provided with a central fire mixed gas supply hollow column (13), the central fire mixed gas supply hollow column (13) is communicated with a central fire gas supply mixed gas channel (21), and the outer ring fire mixed gas distribution annular groove (12) is communicated with an outer ring fire gas supply mixed gas channel (22);

The central firepower air supply mixed gas channel (21) is smaller than the outer ring firepower air supply mixed gas channel (22);

the upper cover of the outer ring firepower mixed gas distribution annular groove (12) is tightly fixed with a mixed gas ring body split cover (8), and a plurality of air injection holes (81) are formed in the annular surface of the mixed gas ring body split cover (8); an outer ring fire dividing cover (7) is fixed on the mixed gas ring body split cover (8);

the middle of the mixed gas ring body split cover (8) is provided with a central hole, the edge of the central hole is also provided with a first annular convex edge (801) which extends upwards, and a second annular convex edge (802) which extends downwards; a convex ring (803) is protruded on the back surface of the mixed gas ring body split flow cover (8) close to the edge, and a back surface ring body concave part (804) is formed between the convex ring (803) and a circular ring convex edge II (802); the front edge of the mixed gas ring body split flow cover (8) is provided with a surrounding edge (805) in a protruding mode, the surrounding edge (805) is also provided with a flanging (806) in an extending and bending mode, and a clamping groove (807) is formed between the flanging (806) and the convex ring (803); a front ring body concave part (808) is formed between the surrounding edge (805) and the circular ring convex part I (801), the front ring body concave part (808) corresponds to the back ring body concave part (804), an air injection hole (81) is formed in the middle of the front ring body concave part (808), the air injection hole (81) is also positioned in the middle of the back ring body concave part (804), the air injection hole (81) enables the front ring body concave part (808) to be communicated with the back ring body concave part (804), and the foot body of the outer ring fire dividing cover (7) is positioned in the front ring body concave part (808).

2. The mixing intake apparatus of a premixed combustion gas burner according to claim 1, wherein: the top of the central firepower mixed gas supply hollow column (13) is fixed with a central fire dividing cover (3).

3. The mixing intake apparatus of a premixed combustion gas burner according to claim 1, wherein: the central fire gas mixture supply hollow column (13) comprises a central upper air hole (131) and an annular upper air hole (132) positioned at the periphery of the central upper air hole (131), wherein one of the central upper air hole (131) or the annular upper air hole (132) is communicated with the central fire gas mixture supply channel (21) or the central upper air hole (131) and the annular upper air hole (132) are both communicated with the central fire gas mixture supply channel (21).

4. A mixing air inlet device for a premix combustion gas burner according to claim 3, wherein: the annular upper air hole (132) is communicated with the central fire air supply mixed gas channel (21), a central flame spraying cover I (4) is fixed at the top of the annular upper air hole (132), an annular groove (41) which is matched with the annular upper air hole (132) for air supply is arranged on the back surface of the central flame spraying cover I (4), and a flame spraying hole I (42) is arranged at the top of the annular groove (41); the middle of the back surface of the first central flame spraying cover (4) is downwards extended to form a ring column (43) which is matched with the central upper air hole (131) and is used for fixing the first central flame spraying cover (4), and the first central flame spraying cover (4) can only be matched with the annular upper air hole (132).

5. A mixing air inlet device for a premix combustion gas burner according to claim 3, wherein: the central upper air hole (131) is communicated with the central fire power air supply mixed gas channel (21), a central fire spraying cover II (5) is fixed at the top of the central upper air hole (131), a concave part (51) is arranged in the middle of the back surface of the central fire spraying cover II (5), and a fire spraying hole II (52) is arranged at the top of the concave part (51); the edge of the reverse side surrounding concave part (51) of the center fire spraying cover II (5) is extended with a ring foot (53) which is matched with the annular upper air hole (132) to fix the center fire spraying cover II (5), and the center fire spraying cover II (5) can only be matched with the center upper air hole (131).

6. A mixing air inlet device for a premix combustion gas burner according to claim 3, wherein: the central upper air hole (131) and the annular upper air hole (132) are communicated with the central firepower air supply mixed gas channel (21), the central upper air hole (131) and the annular upper air hole (132) are fixedly provided with a central flame spraying cover III (6) together, a concave air cavity (61) corresponding to the central upper air hole (131) is arranged in the middle of the back surface of the central flame spraying cover III (6), and a plurality of first flame outlets (62) are arranged at the top of the concave air cavity (61); the back surface of the center flame spraying cover III (6) is provided with a surrounding groove (63) corresponding to the surrounding concave air cavity (61) and the annular upper air hole (132), and the top of the surrounding groove (63) is provided with a plurality of flame outlet holes II (64); the concave air cavity (61) and the surrounding groove (63) are separated by a surrounding annular plate (611).

7. The mixing intake apparatus of a premixed combustion gas burner according to claim 1, wherein: an outer ring fire dividing cover (7) is fixed on the outer ring fire mixed gas distribution annular groove (12).