CN115992959A - Burner - Google Patents

Abstract

The invention relates to the technical field of stoves, and particularly discloses a combustor, which comprises a panel, a stove head, a gas distribution seat, an outer fire cover, an inner fire cover, a blower and a preheating pot frame, wherein the stove head is arranged on the panel, the gas distribution seat is arranged on the stove head, the outer fire cover and the inner fire cover are both arranged on the gas distribution seat, the preheating pot frame is supported on the panel and is sleeved on the gas distribution seat and the outer fire cover at the same time, an air preheating channel is arranged in the preheating pot frame, an air inlet interface and a first air outlet interface which are both communicated with the air preheating channel are also arranged in the preheating pot frame, the output end of the blower is communicated with the air inlet interface, and the first air outlet interface is used for directly supplying air to the outer flame part of flame output by the outer fire cover so as to improve the utilization rate of secondary air; the preheating pot rack absorbs heat through heat radiation and can heat the passed air when the fuel burns, so that excessive reduction of flame temperature caused by supercooled air can be avoided, heat loss is avoided, and meanwhile, under the action of the air blower, sufficient air supply can be ensured, and combustion efficiency is ensured.

Description

Burner

Technical Field

The invention relates to the technical field of stoves, in particular to a combustor.

Background

The supply of secondary air of the kitchen range burner in the market at present adopts a passive supply mode, when the kitchen range burner burns normally, the secondary air supplies oxygen through the groove between the outer fire cover and the base, when the burner burns with big fire, the air supply is insufficient, yellow flame is easy to appear, and the heat efficiency is not high.

In view of this, there is provided a burner in the prior art, in which an inner ring secondary air slot and an outer ring secondary air passage connected to the output end of a blower are provided on a burner and a burner base, and air is supplied to inner ring fire combustion through the inner ring secondary air slot and outer ring fire combustion through the outer ring secondary air passage under the driving of the blower, thereby ensuring sufficient air supply, but the burner has the following problems:

1) When the burner heats the cooker, the air provided by the outer ring secondary air channel corresponds to the inner flame part of the outer ring flame, and the inner flame part needs less secondary air, so that the utilization rate of the secondary air is low;

2) Because the temperature of the air is relatively low, heat loss is easily caused when the inner ring fire is supplied and the outer ring fire is burnt, and the combustion efficiency is reduced.

Disclosure of Invention

The invention aims at: a burner is provided for improving the utilization of secondary air and reducing heat loss.

The invention provides a combustor, which comprises a panel, a furnace end, a gas distribution seat, an inner fire cover, an outer fire cover and a blower, wherein the furnace end is arranged on the panel, the gas distribution seat is arranged on the furnace end, the inner fire cover and the outer fire cover are respectively arranged on the gas distribution seat, the blower is sleeved on the inner fire cover, the combustor also comprises a preheating pot rack supported on the panel, the preheating pot rack is simultaneously sleeved on the gas distribution seat and the outer fire cover, an air preheating channel is arranged in the preheating pot rack, the preheating pot rack is also provided with an air inlet interface and a first air outlet interface which are respectively communicated with the air preheating channel, and the output end of the blower is communicated with the air inlet interface, and the first air outlet interface faces to an outer flame area of flame output by the outer fire cover.

As the preferable technical scheme of the burner, the preheating pot rack is also provided with a second air outlet interface communicated with the air preheating channel, and the second air outlet interface is used for conveying air between the inner fire cover and the outer fire cover and between the outer fire cover and the preheating pot rack.

As a preferable technical scheme of the burner, the air preheating channel is spiral, the air inlet interface is positioned at the outer periphery of the air preheating channel, the second air outlet interface is positioned at the inner periphery of the air preheating channel, and the first air outlet interface is positioned between the outer periphery of the air preheating channel and the inner periphery of the air preheating channel.

As a preferable technical scheme of the burner, the preheating pot frame is provided with a plurality of first air outlet interfaces and a plurality of second air outlet interfaces, the plurality of first air outlet interfaces are sequentially arranged along the direction of conveying air by the air preheating channel, and the plurality of first air outlet interfaces are uniformly distributed along the circumferential direction of the preheating pot frame; the second air outlet ports are sequentially arranged along the direction of conveying air by the air preheating channel, and the second air outlet ports are uniformly distributed along the circumferential direction of the preheating pot frame.

As a preferable technical scheme of the burner, along the direction of conveying air by the air preheating channel, the apertures of the plurality of first air outlet interfaces are gradually increased, and the apertures of the plurality of second air outlet interfaces are gradually increased.

As the preferable technical scheme of the burner, the air preheating channel comprises a first preheating channel and a second preheating channel, the air inlet interface is respectively communicated with the first preheating channel and the second preheating channel, the first air outlet interface is communicated with the first preheating channel, and the second air outlet interface is communicated with the second preheating channel.

As a preferable technical scheme of the burner, the burner further comprises an air door rotationally connected with the preheating pot frame, wherein the air door is positioned between the first preheating channel and the second preheating channel, and the preheating pot frame is provided with an opening communicated with the first preheating channel and the second preheating channel;

the first preheating channel comprises a first section positioned upstream of the opening and a second section positioned downstream of the opening, the second preheating channel comprises a third section positioned upstream of the opening and a fourth section positioned downstream of the opening, the first air outlet interface is communicated with the second section, and the second air outlet interface is communicated with the fourth section; the air door can rotate relative to the preheating pot frame and has a first position, a second position and a third position, when the air door is positioned at the first position, the air door seals the opening, and when the air door is positioned at the second position, the air door is positioned between the opening and the second section; when the damper is in the third position, the damper is positioned between the opening and the fourth segment.

As a preferred technical scheme of the burner, the preheating pot rack comprises a preheating disc, a pot rack arranged above the preheating disc and a supporting ring connected to the bottom of the preheating disc, wherein the pot rack is used for supporting a pot, and the air preheating channel, the air inlet interface, the first air outlet interface and the second air outlet interface are all arranged on the preheating disc;

the burner also comprises a water receiving disc sleeved on the burner, the water receiving disc is connected with the burner, the water receiving disc is supported on the panel, and the supporting ring is in sealing fit with the upper surface of the water receiving disc.

As the preferred technical scheme of combustor, the combustor still includes air delivery channel, air delivery channel including set up in divide the gas seat with the first passageway between the water collector, set up in divide the second passageway of gas seat, and set up in interior fire lid with the third passageway between the outer fire lid, first passageway second passageway with third passageway communicates in proper order, the second interface of giving vent to anger is towards first passageway.

As a preferred technical scheme of the burner, the air conveying channel further comprises a fourth channel arranged between the air distributing seat and the preheating pot frame and a fifth channel arranged between the outer fire cover and the preheating pot frame, wherein the fourth channel is communicated with the fifth channel, and the fourth channel can be communicated with the first channel.

The beneficial effects of the invention are as follows:

the invention provides a burner, the preheating pot rack of the burner is internally provided with an air preheating channel, the preheating pot rack is also provided with an air inlet interface and a first air outlet interface which are all communicated with the air preheating channel, the output end of a blower is communicated with the air inlet interface, the first air outlet interface is used for directly supplying air to the outer flame part of flame output by an outer flame cover so as to improve the utilization rate of secondary air, when the fuel output by the outer flame cover and an inner flame cover is combusted, the preheating pot rack has higher temperature under the action of heat radiation, and when the blower conveys the air to the air preheating channel of the preheating pot rack, the air exchanges heat with the preheating pot rack so as to improve the temperature, thereby avoiding the reduction of flame temperature and the heat loss when the air is conveyed to the outer flame part of flame output by the outer flame cover; meanwhile, under the action of the air blower, sufficient air supply can be ensured, and fuel is promoted to be fully combusted, so that the combustion efficiency of the fuel is improved.

The invention provides a combustor, wherein an air preheating channel is arranged in a preheating pot frame of the combustor, an air inlet interface and an air outlet interface which are all communicated with the air preheating channel are also arranged in the preheating pot frame, the output end of a blower is communicated with the air inlet interface, the air outlet interface is used for supplying air to fuel output by a fire cover assembly, when the fuel output by the fire cover assembly combusts, the preheating pot frame has higher temperature under the action of heat radiation, and when the blower conveys the air to the air preheating channel of the preheating pot frame, the air exchanges heat with the preheating pot frame to raise the temperature, so that the excessive reduction of flame temperature can be avoided when the air is conveyed to the fire cover assembly, the heat loss is avoided, meanwhile, the sufficient air supply can be ensured under the action of the blower, the full combustion of the fuel is promoted, and the combustion efficiency of the fuel is improved.

Drawings

FIG. 1 is a top view of a combustor in an embodiment of the invention;

FIG. 2 is an isometric view of a combustor in an embodiment of the invention;

FIG. 3 is an exploded view of a burner in an embodiment of the invention;

FIG. 4 isbase:Sub>A cross-sectional view of the burner of FIG. 1 taken along the direction A-A;

FIG. 5 is a cross-sectional view of the burner of FIG. 1 taken along the B-B direction;

FIG. 6 is a schematic view of a burner supporting a pan according to an embodiment of the present invention;

FIG. 7 is a partial view of a combustor in accordance with an embodiment of the present invention;

FIG. 8 is a partial view II of a burner in an embodiment of the invention;

FIG. 9 is a schematic view showing a part of the structure of a preheating plate in a burner according to an embodiment of the present invention;

FIG. 10 is a cross-sectional view of a preheat plate in a combustor in accordance with an embodiment of the present invention;

fig. 11 is a schematic view of the air preheating channel according to the embodiment of the present invention after being laid flat along its profile.

In the figure:

1. a panel; 11. a through hole;

2. a burner;

3. an air dividing seat;

41. an inner fire cover; 42. an outer fire cover;

5. a blower;

6. preheating a pot rack; 61. a preheating plate; 611. a housing; 612. spiral partition; 613. positioning the bulge; 62. a pot holder; 621. a base; 622. a support leg; 623. a positioning groove; 63. a support ring; 64. an air preheating passage; 641. a first preheating passage; 642. a first section; 643. a second section; 644. a second preheating passage; 645. a third section; 646. a fourth section; 65. an air inlet interface; 661. a first air outlet port; 662. a second air outlet interface; 67. an opening; 68. a semi-enclosed space; 69. a damper;

7. a water receiving tray;

81. a first channel; 82. a second channel; 83. a third channel; 84. a fourth channel; 85. a fifth channel;

9. a pot;

10. and (3) a nozzle.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the burner in the prior art, under the driving of the blower, air is supplied to the inner annular fire for combustion through the inner annular secondary air slot, and is supplied to the outer annular fire for combustion through the outer annular secondary air channel, and the blower can provide enough air, but because the temperature of the air is relatively low, when the inner annular fire and the outer annular fire are supplied for combustion, part of heat can be absorbed by the colder air, and the problems of large heat loss and low combustion efficiency exist.

In this regard, the present embodiment provides a burner capable of reducing heat loss and remarkably improving combustion efficiency on the premise of ensuring sufficient supply of secondary air.

FIG. 1 is a top view of a combustor in an embodiment of the invention; FIG. 2 is an isometric view of a combustor in an embodiment of the invention; FIG. 3 is an exploded view of a burner in an embodiment of the invention; FIG. 4 isbase:Sub>A cross-sectional view of the burner of FIG. 1 taken along the direction A-A; FIG. 5 is a cross-sectional view of the burner of FIG. 1 taken along the B-B direction; fig. 6 is a schematic view of the burner supporting the pot 9 according to the embodiment of the present invention. Specifically, as shown in fig. 1 to 6, the burner includes a panel 1, a burner 2, a gas distribution base 3, an inner fire cover 41, an outer fire cover 42, a blower 5, and a preheating pot holder 6. The burner 2 is mounted on the panel 1, the air distribution seat 3 is mounted on the burner 2, the inner fire cover 41 and the outer fire cover 42 are mounted on the air distribution seat 3, the outer fire cover 42 is sleeved on the inner fire cover 41, fuel conveyed by the burner 2 can be distributed to the inner fire cover 41 and the outer fire cover 42 through the air distribution seat 3 and can be output through the inner fire cover 41 and the outer fire cover 42, the preheating pot frame 6 is supported on the panel 1 and sleeved on the air distribution seat 3 and the outer fire cover 42 at the same time, the preheating pot frame 6 can be used for supporting the pot 9, an air preheating channel 64 is arranged in the preheating pot frame 6, an air inlet port 65 and a first air outlet port 661 which are communicated with the air preheating channel 64 are further arranged in the preheating pot frame 6, the output end of the blower 5 is communicated with the air inlet port 65, the first air outlet port 661 faces the outer flame area of flame output by the outer fire cover 42, and the air output by the first air outlet port 661 is used for supplying the outer flame part of the flame output by the outer fire cover 42.

Wherein primary air has been mixed with the fuel delivered by the burner 2, in this embodiment the air provided by the blower 5 is secondary air. It will be appreciated that the flame includes an inner flame and an outer flame, and the amount of air required by the outer flame portion is relatively large, the primary air mixed in the fuel can already meet the requirement of the inner flame portion, and secondary air is supplied to the outer flame portion of the flame output from the outer flame cover 42 through the first air outlet port 661, so as to improve the utilization rate of the air; meanwhile, when the fuel output from the outer and inner flame covers 42 and 41 is burned, the preheating pot holder 6 has a high temperature under the effect of heat radiation, and when the blower 5 delivers air to the air preheating passage 64 of the preheating pot holder 6, the air exchanges heat with the preheating pot holder 6 to raise the temperature, so that the excessive reduction of the flame temperature can be avoided when the air is delivered to the outer flame portion of the flame output from the outer flame cover 42; in addition, under the action of the blower 5, sufficient air supply can be ensured, and the fuel is promoted to be fully combusted, so that the combustion efficiency of the fuel is improved.

Optionally, as shown in fig. 5 and 6, the preheating pot holder 6 is further provided with a second air outlet port 662 communicating with the air preheating channel 64, the second air outlet port 662 being used for delivering air between the inner fire cover 41 and the outer fire cover 42 and between the outer fire cover 42 and the preheating pot holder 6. The air conveyed between the inner fire cover 41 and the outer fire cover 42 can be simultaneously supplied to the flame output by the inner fire cover 41 and the flame output by the outer fire cover 42 for combustion, and the air conveyed between the outer fire cover 42 and the preheating pot rack 6 can be supplied to the flame output by the outer fire cover 42 for combustion, so that the utilization rate of fuel can be further improved.

Alternatively, as shown in fig. 3 and 4, the blower 5 is disposed below the panel 1 in the present embodiment, the panel 1 is provided with a through hole 11, and the air inlet 65 passes through the through hole 11 and is located below the panel 1, so that the overall appearance of the burner can be ensured. As an alternative thereto, the blower 5 may also be supported above the panel 1.

Fig. 7 is a schematic view of the structure of the preheating plate 61, the gas distributing base 3, the inner fire cover 41 and the outer fire cover 42 in the burner according to the embodiment of the present invention; fig. 8 is a schematic diagram II of the structure of the preheating plate 61, the gas distributing seat 3, the inner fire cover 41 and the outer fire cover 42 in the burner according to the embodiment of the present invention; fig. 9 is a schematic view showing a part of the structure of a preheating plate 61 in a burner according to an embodiment of the present invention; fig. 10 is a cross-sectional view of a preheating plate 61 in a burner in an embodiment of the present invention. Alternatively, referring to fig. 7 to 10, the preheating pot holder 6 includes a preheating plate 61 and a pot holder 62 disposed above the preheating plate 61, the pot holder 62 is used for supporting the pot 9, and the air preheating channel 64, the air inlet port 65 and the air outlet port are all disposed on the preheating plate 61. Specifically, the pot holder 62 includes a base 621 and a plurality of legs 622 supported on the base 621, and the plurality of legs 622 are uniformly distributed along the circumferential direction of the pot holder 62, wherein four legs 622 are given as an example in the present embodiment, and the number of the legs 622 may be set to be different according to the need in other embodiments. In this embodiment, when the fuel is burned, the legs 622 are in the flame range and can directly absorb heat and transfer to the base 621; in addition, a part of the heat generated by the combustion of the fuel is absorbed by the base 621 by the heat radiation, and the base 621 can transfer the absorbed heat to the preheating tray 61 below and heat the air flowing through the air preheating passage 64 by the preheating tray 61. Preferably, the upper surface of the preheating plate 61 and the lower surface of the base 621 are adhered to ensure good heat transfer effect of the preheating plate 61 and the base 621. It is further preferred that both the base 621 and the preheating plate 61 have a concave disk-like structure, so that the preheating pot holder 6 has a large heating area to enhance the heating effect of the air in the air preheating passage 64. Further preferably, the preheating plate 61 is provided with an annular positioning protrusion 613, the base 621 is provided with an annular positioning groove 623, and the positioning protrusion 613 and the positioning groove 623 are inserted into each other, so as to ensure that the relative positions of the pot holder 62 and the preheating plate 61 are stable, and further ensure that the base 621 and the preheating plate 61 can be stably attached together.

Optionally, referring to fig. 3 to 6, the burner further includes a water pan 7 sleeved on the burner 2, the water pan 7 is connected with the burner 2, and the water pan 7 is supported on the panel 1; the preheating pot holder 6 further comprises a support ring 63 connected to the bottom of the preheating tray 61, and the support ring 63 is in sealing fit with the upper surface of the water receiving tray 7. Wherein, water collector 7 passes through the screw closure with furnace end 2 to be connected, and the outward flange of water collector 7 can be taken on panel 1, and accessible panel 1 and furnace end 2 support water collector 7, and preheat pot frame 6 supports on water collector 7 through support ring 63, and when preheat pot frame 6 top has hot water or debris to drop, can only fall water collector 7, can avoid dropping on the panel 1. Wherein, the support ring 63 and the preheating plate 61 can be integrally arranged or detachably connected. As an alternative thereto, the support ring 63 may also be in sealing engagement with the panel 1.

The embodiment provides sealing fit with the water pan 7 through the support ring 63, sealing fit of the support ring 63 and the preheating plate 61, a semi-closed space 68 is enclosed between the water pan 7, the support ring 63 and the preheating plate 61, the second air outlet interface 662 is communicated with the semi-closed space 68, the semi-closed space 68 only allows air to be conveyed to one side of the fire cover assembly, and further air is prevented from returning to the outside atmosphere along one side deviating from the fire cover assembly, and the air output by the second air outlet interface 662 is ensured to be fully supplied to fuel combustion output by the fire cover assembly. Optionally, a second outlet port 662 is fitted with a nozzle 10.

Alternatively, referring to fig. 5, 6, 9 and 10, the air preheating channel 64 is spiral, the air inlet port 65 is connected to the outer periphery of the air preheating channel 64, the second air outlet port 662 is connected to the inner periphery of the air preheating channel 64, and the first air outlet port 661 is connected between the inner periphery and the outer periphery of the air preheating channel 64. Specifically, the preheating plate 61 includes a housing 611 and a spiral partition 612, where the housing 611 has a receiving cavity, the air inlet port 65, the first air outlet port 661 and the second air outlet port 662 are all disposed in the housing 611, the spiral partition 612 is located in the receiving cavity, and the upper and lower sides of the spiral partition 612 are connected with the cavity wall of the receiving cavity, so as to form a spiral air preheating channel 64, after the air enters the air preheating channel 64 from the air inlet port 65, the air will move along the circumferential direction of the preheating plate 61 for a plurality of circles to reach the second air outlet port 662, and the air has a longer moving path in the air preheating channel 64, so that heat exchange with the preheating plate 61 can be effectively ensured, and the air has a higher temperature after being output from the second air outlet port 662. Wherein the housing 611 and the spiral partition 612 may be integrally provided.

Optionally, the preheating pot holder 6 is provided with a plurality of first air outlet ports 661; the plurality of first air outlet ports 661 are sequentially arranged along the direction of conveying air by the air preheating channel 64, and the plurality of first air outlet ports 661 are uniformly distributed along the circumferential direction of the preheating pot holder 6, so that the arrangement can ensure that secondary air is uniformly supplied to the outer flame area of the flame output by the outer flame cover 42; the preheating pot holder 6 is further provided with a plurality of second air outlet interfaces 662, the plurality of second air outlet interfaces 662 are sequentially arranged along the direction of conveying air by the air preheating channel 64, and the plurality of second air outlet interfaces 662 are uniformly distributed along the circumferential direction of the preheating pot holder 6. This arrangement ensures that the air is uniformly supplied to the flames output from the inner flame cover 41 and the flames output from the outer flame cover 42 at the same time. Preferably, the apertures of the plurality of first air outlet ports 661 are gradually increased and the apertures of the plurality of second air outlet ports 662 are gradually increased along the direction in which the air preheating passage 64 delivers air. Taking the first air outlet ports 661 as an example, it is understood that as air gradually passes through the plurality of first air outlet ports 661, the air pressure of the air will gradually decrease, if the apertures of the first air outlet ports 661 are consistent, the air flow output by the plurality of first air outlet ports 661 in the direction of conveying air along the air preheating channel 64 will gradually decrease, and in this regard, by gradually increasing the apertures of the plurality of first air outlet ports 661 in the direction of conveying air along the air preheating channel 64, it can be ensured that the air flow output by the first air outlet ports 661 tends to be balanced.

Fig. 11 is a schematic view of the air preheating passage 64 according to the embodiment of the present invention, laid flat along its line. Alternatively, as shown in fig. 11, the air preheating passage 64 includes a first preheating passage 641 and a second preheating passage 644, the air inlet port 65 communicates with the first preheating passage 641 and the second preheating passage 644, the first air outlet port 661 communicates with the first preheating passage 641, and the second air outlet port 662 communicates with the second preheating passage 644, respectively. Specifically, the first preheating passage 641 is located above the second preheating passage 644, so that the initial air pressure of the air supplied to the first air outlet port 661 is ensured to be identical to the initial air pressure of the air supplied to the second air outlet port 662, and the air supply effect is ensured. In other embodiments, the first and second preheating channels 641, 644 may also be combined into the same preheating channel.

Optionally, with continued reference to fig. 11, the burner further includes a damper 69 rotatably connected to the preheating pot holder 6, the damper 69 being located between the first preheating channel 641 and the second preheating channel 644, the preheating pot holder 6 being provided with an opening 67 communicating the first preheating channel 641 and the second preheating channel 644; the first preheating channel 641 comprises a first section 642 upstream of the opening 67 and a second section 643 downstream of the opening 67, the second preheating channel 644 comprises a third section 645 upstream of the opening 67 and a fourth section 646 downstream of the opening 67, the first air outlet port 661 communicates with the second section 643, and the second air outlet port 662 communicates with the fourth section 646; the damper 69 is rotatable relative to the pre-heat pot holder 6 to have a first position, a second position and a third position, the damper 69 closing the opening 67 when the damper 69 is in the first position, as shown in figure 11 a, and the damper 69 being located between the opening 67 and the second section 643 when the damper 69 is in the second position, as shown in figure 11B; when the damper 69 is in the third position, as shown in figure 11C, the damper 69 is positioned between the opening 67 and the fourth segment 646. When the damper 69 is in the first position, the damper 69 may completely separate the first preheating channel 641 and the second preheating channel 644, and at this time, the first preheating channel 641 and the second preheating channel 644 are not communicated, air in the first preheating channel 641 is output from the first air outlet port 661 only, and air in the second preheating channel 644 is output from the second air outlet port 662 only; when the damper 69 is in the second position, the damper 69 opens the opening 67, and the damper 69 can adjust the opening of the second section 643, specifically, the opening of the second section 643 may be greater than or equal to 0 and less than 100%, at which time a part or all of the air in the first preheating channel 641 enters the second preheating channel 644 from the opening 67, so that the air output from the first air outlet port 661 can be reduced or closed and the air output from the second air outlet port 662 can be increased; when the damper 69 is in the third position, the damper 69 opens the opening 67, and the damper 69 may adjust the opening degree of the fourth segment 646, specifically, the opening degree of the fourth segment 646 may be greater than or equal to 0 and less than 100%, at which time a part or all of the air in the second preheating passage 644 enters the first preheating passage 641 from the opening 67, and the air output from the second air outlet 662 may be reduced or closed and the air output from the first air outlet 661 may be increased. Wherein the damper 69 is motor-driven for rotation between a first position-a second position-a third position.

As an alternative, the air preheating passage 64 may further include a main passage and a plurality of sub-passages, each of which communicates with the main passage, the air inlet port 65 communicates with the main passage, the plurality of first air outlet ports 661 communicates with the plurality of sub-passages in one-to-one correspondence, and the plurality of second air outlet ports 662 communicates with the plurality of sub-passages in one-to-one correspondence.

The burner further comprises an air conveying channel, the air conveying channel comprises a first channel 81 arranged between the air distributing seat 3 and the water receiving disc 7, a second channel 82 arranged on the air distributing seat 3 and a third channel 83 arranged between the inner fire cover 41 and the outer fire cover 42, the first channel 81, the second channel 82 and the third channel 83 are sequentially communicated, a second air outlet interface 662 faces the first channel 81, and the second air outlet interface 662 is used for conveying air to the first channel 81. Specifically, the semi-enclosed space 68 is communicated with the first channel 81, and after the air output from the second air outlet port 662 enters the semi-enclosed space 68, the air is supplied to the inner fire cover 41 and the fuel output from the outer fire cover 42 through the first channel 81, the second channel 82 and the third channel 83 in sequence to burn, so that the burning efficiency is ensured.

Optionally, the air conveying channel further comprises a fourth channel 84 arranged between the air dividing seat 3 and the preheating pot holder 6, and a fifth channel 85 arranged between the outer fire cover 42 and the preheating pot holder 6, the fourth channel 84 and the fifth channel 85 are communicated, and the fourth channel 84 can be communicated with the first channel 81. Specifically, the fourth passage 84 communicates with the first passage 81 through the semi-enclosed space 68. Because the fuel output by the outer fire cover 42 is more than that output by the inner fire cover 41, a part of air can be independently supplied to the outer fire cover 42 through the fourth channel 84 and the fifth channel 85, so that the air required by the fuel output by the outer fire cover 42 is sufficient, and the combustion efficiency is further ensured.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a combustor, includes panel (1), install in furnace end (2) of panel (1), install in divide gas seat (3) of furnace end (2), all install in divide interior fire lid (41) and outer fire lid (42) of gas seat (3) and air-blower (5), outer fire lid (42) cover is located interior fire lid (41), a serial communication port, the combustor still including support in preheat pot frame (6) of panel (1), preheat pot frame (6) cover simultaneously and locate divide gas seat (3) with outer fire lid (42), be equipped with air preheating passageway (64) in preheat pot frame (6), preheat pot frame (6) still be equipped with all with air preheating passageway (64) intercommunication's air inlet interface (65) and first interface (661) of giving vent to anger, the output of air-blower (5) with air inlet interface (65) intercommunication, first interface (661) orientation the flame area of the flame of the output of outer lid (42).

2. Burner according to claim 1, characterized in that the pre-heating pan carrier (6) is further provided with a second air outlet interface (662) communicating with the air pre-heating channel (64), the second air outlet interface (662) being adapted to convey air between the inner fire cover (41) and the outer fire cover (42) and between the outer fire cover (42) and the pre-heating pan carrier (6).

3. The burner according to claim 2, wherein the air preheating passage (64) is spiral, the air inlet port (65) is located at an outer periphery of the air preheating passage (64), the second air outlet port (662) is located at an inner periphery of the air preheating passage (64), and the first air outlet port (661) is located between the outer periphery of the air preheating passage (64) and the inner periphery of the air preheating passage (64).

4. Burner according to claim 2, characterized in that the preheating pot holder (6) is provided with a plurality of the first air outlet interfaces (661) and a plurality of the second air outlet interfaces (662), the plurality of the first air outlet interfaces (661) being arranged in sequence along the direction in which the air preheating channel (64) delivers air, and the plurality of the first air outlet interfaces (661) being evenly distributed along the circumferential direction of the preheating pot holder (6); the second air outlet ports (662) are sequentially arranged along the direction of conveying air by the air preheating channel (64), and the second air outlet ports (662) are uniformly distributed along the circumferential direction of the preheating pot rack (6).

5. The burner according to claim 2, wherein the aperture of the plurality of first air outlet ports (661) is gradually increased and the aperture of the plurality of second air outlet ports (662) is gradually increased along the direction in which the air preheating passage (64) delivers air.

6. The burner according to claim 2, wherein the air preheating channel (64) comprises a first preheating channel (641) and a second preheating channel (644), the air inlet interface (65) being in communication with the first preheating channel (641) and the second preheating channel (644), respectively, the first air outlet interface (661) being in communication with the first preheating channel (641), the second air outlet interface (662) being in communication with the second preheating channel (644).

7. The burner according to claim 6, characterized in that it further comprises a damper (69) in rotary connection with the preheating pot holder (6), said damper (69) being located between the first preheating channel (641) and the second preheating channel (644), the preheating pot holder (6) being provided with an opening (67) communicating the first preheating channel (641) with the second preheating channel (644);

the first preheating channel (641) comprises a first section (642) located upstream of the opening (67) and a second section (643) located downstream of the opening (67), the second preheating channel (644) comprises a third section (645) located upstream of the opening (67) and a fourth section (646) located downstream of the opening (67), the first air outlet interface (661) communicates with the second section (643), the second air outlet interface (662) communicates with the fourth section (646); the damper (69) is rotatable relative to the pre-heating pan carrier (6) to have a first position, a second position and a third position, the damper (69) closing the opening (67) when the damper (69) is in the first position, the damper (69) being located between the opening (67) and the second section (643) when the damper (69) is in the second position; when the damper (69) is in the third position, the damper (69) is located between the opening (67) and the fourth segment (646).

8. Burner according to any one of claims 2-7, wherein the pre-heating pan frame (6) comprises a pre-heating pan (61), a pan frame (62) arranged above the pre-heating pan (61), and a support ring (63) connected to the bottom of the pre-heating pan (61), the pan frame (62) being adapted to support a pan (9), the air pre-heating channel (64), the air inlet interface (65), the first air outlet interface (661) and the second air outlet interface (662) being arranged all at the pre-heating pan (61);

the burner further comprises a water pan (7) sleeved on the burner (2), the water pan (7) is connected with the burner (2), the water pan (7) is supported by the panel (1), and the supporting ring (63) is in sealing fit with the upper surface of the water pan (7).

9. The burner according to claim 8, further comprising an air delivery channel comprising a first channel (81) arranged between the gas separation seat (3) and the water pan (7), a second channel (82) arranged in the gas separation seat (3), and a third channel (83) arranged between the inner fire cover (41) and the outer fire cover (42), the first channel (81), the second channel (82) and the third channel (83) being in turn communicating, the second gas outlet interface (662) being directed towards the first channel (81).

10. Burner according to claim 9, characterized in that the air delivery channel further comprises a fourth channel (84) arranged between the gas separation seat (3) and the pre-heating pan carrier (6), and a fifth channel (85) arranged between the outer fire cover (42) and the pre-heating pan carrier (6), the fourth channel (84) and the fifth channel (85) being in communication, and the fourth channel (84) being capable of communicating with the first channel (81).

Images