CN111486456A

CN111486456A - Upper air inlet double-ring combustor

Info

Publication number: CN111486456A
Application number: CN202010306956.XA
Authority: CN
Inventors: 邵海忠; 郑军妹; 徐强
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-08-04

Abstract

The invention relates to an upper air inlet double-ring combustor which comprises a base, a gas inlet pipe, a gas outlet pipe and a gas inlet pipe, wherein the base is embedded on a panel and is internally provided with a gas channel; the nozzle comprises a first nozzle and a second nozzle and is communicated with the gas channel; the base is supported on the base and comprises an inner ring seat body and an outer ring seat body arranged at the periphery of the inner ring seat body at intervals, the inner ring seat body is provided with an inner injection pipe, and the outer ring seat body is provided with an outer injection pipe; the fire cover comprises an inner ring fire cover and an outer ring fire cover, the inner ring fire cover is covered on the inner ring seat body in a matching way and forms an inner ring air mixing chamber with the inner ring seat body, and the outer ring fire cover is covered on the outer ring seat body in a matching way and forms an outer ring air mixing chamber with the outer ring seat body; the inner ring base body is internally provided with a temperature sensing probe extending to the upper part of the inner ring fire cover, the top surface of the inner ring fire cover is provided with a check ring extending upwards along the circumferential direction, and the check ring is positioned on the inner periphery of the fire hole of the inner ring fire cover. The upper air inlet double-ring combustor can reduce the influence of flame, smoke and the like on the temperature rise of the temperature sensing probe, improve the temperature measurement precision of the temperature sensing probe and prolong the service life of the temperature sensing probe.

Description

Upper air inlet double-ring combustor

Technical Field

The invention relates to the technical field of combustors, in particular to an upper air inlet double-ring combustor.

Background

In the existing burner, in order to avoid the potential safety hazard problem caused by dry burning of the cookware, a temperature sensing probe used for detecting the dry burning condition of the cookware is usually arranged on the burner. The anti-dry combustion burner is most concerned about the matching performance of the burner and the temperature sensing probe besides the conventional indexes such as smoke, efficiency and the like, namely the influence of the burner on the temperature measurement precision of the temperature sensing probe for testing the pot bottom is as small as possible, and particularly the temperature measurement interference of inner ring flame and smoke on the temperature sensing probe is small. In order to reduce the influence on the temperature sensing probe, many manufacturers have introduced a single-ring fire burner, but have brought about more problems: for example, cooking is seriously affected due to poor fire uniformity, small fire is difficult to make small, fire is not large, and the like. On the dicyclo temperature control combustor, more producer has released down the combustor of admitting air, has also brought more problem: the cabinet door of the switch cabinet can be flamed out under the condition of small fire, the change of air pressure behind the cabinet door of the switch cabinet can influence the flame combustion of the inner ring under the condition of medium fire, and then the temperature measurement precision of the temperature sensing probe is influenced.

The chinese patent application No. CN109579010A (application No. 201910027822.1) discloses an upper air inlet burner capable of preventing dry combustion, wherein the disclosed burner comprises a burner body and an ignition pulse device for controlling the combustion state of the burner body, the burner body is provided with a temperature sensing probe, the temperature sensing probe is electrically connected with the ignition pulse control device, the temperature sensing probe can feed back the bottom temperature information of the used pot to the ignition pulse control device, when the temperature information of the temperature sensing probe is lower than a set value, the upper air inlet burner normally works, when the temperature information of the temperature sensing probe is higher than the set value, the ignition pulse control device can control the upper air inlet burner to stop working, thereby avoiding the dry combustion phenomenon. However, the temperature sensing probe of the upper air inlet burner cannot avoid the influence of flame and high-temperature flue gas on the temperature measurement precision.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide an upper air inlet double-ring burner capable of isolating flame and high temperature flue gas outside the position where the temperature sensing probe is disposed, in view of the above prior art.

A second technical problem to be solved by the present invention is to provide an upper intake double ring combustor capable of reducing an inner ring combustion load in view of the above prior art.

The third technical problem to be solved by the present invention is to provide an upper air intake double-ring burner, which can actively reduce the temperature of the temperature sensing probe to reduce the influence of the inner ring heat radiation on the temperature sensing probe, in view of the above prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: an upper air inlet double-ring burner comprises

The base is embedded on the panel, and a gas channel is arranged in the base;

the nozzle comprises a first nozzle and a second nozzle, and is arranged on the base and communicated with the gas channel respectively;

the base is supported and arranged on the base and has a gap with the base, the base comprises an inner ring base body and an outer ring base body arranged at the periphery of the inner ring base body at intervals, the inner ring base body is provided with an inner injection pipe with an inlet facing the first nozzle, and the outer ring base body is provided with an outer injection pipe with an inlet facing the second nozzle;

the fire cover comprises an inner ring fire cover and an outer ring fire cover, the inner ring fire cover is covered on the inner ring seat body in a matching manner and forms an inner ring air mixing chamber with the inner ring seat body, and the outer ring fire cover is covered on the outer ring seat body in a matching manner and forms an outer ring air mixing chamber with the outer ring seat body;

the method is characterized in that: the inner ring base is internally provided with a temperature sensing probe extending to the upper part of the inner ring fire cover, the top surface of the inner ring fire cover is provided with a check ring extending upwards along the circumferential direction, and the check ring is positioned on the inner periphery of a fire hole of the inner ring fire cover.

In order to enable combustion flame in the fire hole in the inner ring fire cover to be turned outwards and further to be far away from the temperature sensing probe, the influence on the temperature sensing probe is further reduced, the fire hole in the inner ring fire cover is formed in the outer peripheral wall of the inner ring fire cover, a blocking eave is arranged on the top surface of the inner ring fire cover in a mode that the top surface of the inner ring fire cover extends outwards and downwards along the circumferential direction, and the edge of the blocking eave is close to the upper portion of the fire hole in the inner ring fire cover.

An ignition needle is arranged on the base, the upper end of the ignition needle is located beside the inner ring fire cover, and the distance from the top of the ignition needle to the edge of the blocking eaves is smaller than the radial distance from the ignition needle to the outer peripheral wall of the inner ring fire cover. Therefore, during operation, the ignition can be ensured to discharge against the blocking eaves, and the air flow speed output by the inner ring fire hole can be reduced under the blocking effect of the blocking eaves, so that the ignition is stable and reliable. Meanwhile, the blocking eaves can protect the inner ring fire holes, and the probability that the inner ring fire holes are blocked by overflowing liquid is reduced, so that the ignition success rate is further improved.

In order to better guide out the overflowing liquid and avoid the influence of the overflowing liquid on the temperature sensing probe, at least one notch is arranged on the retaining ring along the circumferential direction; the top surface of the inner ring fire cover is gradually inclined downwards from inside to outside along the radial direction.

In order to lead out the overflowing liquid just and facilitate wiping of a user, a flow guide plate is arranged on the outer peripheral wall of the inner ring seat body along the circumferential direction, the flow guide plate is inclined downwards from inside to outside along the radial direction gradually, and a gap is formed between the edge of the flow guide plate and the outer ring seat body.

In order to avoid the overflow liquid from blocking the second nozzle and the inlet of the outer injection pipe, the inner ring seat body and the outer ring seat body are connected through the outer injection pipe, and the inlet of the outer injection pipe and the second nozzle are both positioned below the guide plate.

Preferably, the outer injection pipes are provided with at least two, the outer injection pipes are uniformly distributed along the circumferential direction of the inner ring seat body, and each outer injection pipe is correspondingly provided with a second nozzle.

Preferably, each outer injection pipe is tangent to the outer peripheral wall of the inner ring seat body.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the first nozzles are arranged on the periphery of the first nozzles, and an included angle is formed between the spraying direction of the first nozzles and the spraying direction of each second nozzle.

The inlets of the first nozzle and the inner injection pipe are both positioned below the outer ring seat body.

In order to further reduce the competition of the air injection between the first nozzle and the second nozzle, the heights of the air injection openings of the first nozzle and the second nozzle are different.

The technical scheme adopted by the invention for solving the third technical problem is as follows: the temperature sensing probe is connected to the base, an installation channel is arranged in the center of the inner ring base body in a vertically penetrating mode, and the temperature sensing probe is located in the installation channel.

Preferably, the base is provided with an opening corresponding to the arrangement position of the temperature sensing probe.

Compared with the prior art, the invention has the advantages that: the check ring structure is designed on the inner ring fire cover of the upper air inlet burner, so that the inner ring fire burnt in the working process is isolated outside the temperature sensing probe, the influence of flame, smoke and the like generated by the inner ring on the temperature rise of the temperature sensing probe is reduced, and the temperature measurement precision and the service life of the temperature sensing probe are improved.

Drawings

Fig. 1 is a perspective view of an upper air inlet double-ring burner in an embodiment of the invention.

Fig. 2 is an exploded perspective view of the upper air inlet double-ring burner in the embodiment of the invention.

Fig. 3 is another view of fig. 2.

Fig. 4 is a sectional view of an upper inlet double ring burner in an embodiment of the present invention.

Fig. 5 is a sectional view of another section of the upper intake double ring burner in the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 5, the upper air inlet double-ring burner in the present embodiment includes a base 1, a nozzle 2, a base 3, a fire cover 4 and a temperature sensing probe 5.

As shown in fig. 2 and 3, the base 1 is embedded on the panel 10, and the base 1 has a gas channel 11 therein. In order to save cost, the base 1 is a plate body capable of being embedded on the panel 10, a gas pipe communicated with an air supply source is arranged below the plate body, and a channel in the gas pipe is a gas channel 11. And an air outlet is arranged on the base 1.

The nozzle 2 comprises a first nozzle 21 and a second nozzle 22, each of the first nozzle 21 and the second nozzle 22 is connected to the base 1 corresponding to one of the air outlet holes, so that the first nozzle 21 and the second nozzle 22 are communicated with the gas channel 11.

As shown in fig. 4 and 5, the base 3 is supported and disposed on the base 1 and has a gap 31 with the base 1, the base 3 includes an inner ring seat 32 and an outer ring seat 33 disposed at the periphery of the inner ring seat 32 at intervals, in this embodiment, the inner ring seat 32 and the outer ring seat 33 are concentrically disposed, and the gap 31 between the base 3 and the base 1 can satisfy the position where air enters the inner ring seat 32, so as to provide primary air and secondary air for an inner ring air mixing chamber 341 formed by the inner ring seat 32 and an inner ring fire cover 41 described below.

The fire cover 4 comprises an inner ring fire cover 41 and an outer ring fire cover 42, the inner ring fire cover 41 is covered on the inner ring seat body 32 in a matching way and forms an inner ring air mixing chamber 341 with the inner ring seat body 32, and the outer ring fire cover 42 is covered on the outer ring seat body 33 in a matching way and forms an outer ring air mixing chamber 342 with the outer ring seat body 33.

The inner ring base body 32 is provided with a temperature sensing probe 5 extending to the upper part of the inner ring fire cover 41, the top surface of the inner ring fire cover 41 is provided with a retaining ring 411 extending upwards along the circumferential direction, and the retaining ring 411 is positioned on the inner periphery of the fire hole of the inner ring fire cover 41. In this embodiment, the temperature sensing probe 5 is connected to the base 1, and the base 1 is provided with an opening 12 corresponding to the position where the temperature sensing probe 5 is installed. The center of the inner ring base 32 is provided with an installation channel 321 which is vertically penetrated, and the temperature sensing probe 5 is positioned in the installation channel 321. The corresponding inner fire cover 41 is also annular, and the inner peripheral wall of the inner fire cover 41 is engaged with the inner peripheral wall of the installation passage 321. When the burner works, external air can enter the mounting channel 321 through the gap 31 between the base 3 and the base 1 to cool the temperature sensing probe 5, so that the influence of flame on the inner ring fire cover 41 and correspondingly formed high-temperature smoke on the temperature detected by the temperature sensing probe 5 is reduced. For better introduction of the external air, a portion of the bottom of the installation passage 321 is disposed to be inclined upward to form a larger air inlet area. In this embodiment, a portion of the lower end of the inner ring housing 32 is inclined upward to form a mouth for better air entering into the mounting passage 321 at the side.

Compared with the existing upper air inlet burner, the center of the upper air inlet double-ring burner in the embodiment is provided with the mounting channel 321 which is communicated up and down, meanwhile, the base 1 is correspondingly provided with the opening 12, so that the communication of the inner atmosphere and the outer atmosphere of the inner ring base body 32 is realized, in addition, a gap exists between the inner ring base body 32 and the base 1 which form the inner ring air mixing chamber 341, the air at the outer side can conveniently enter the middle of the inner ring fire cover 41, the air is supplemented to the inner side of the inner ring flame, the combustion is stable, and the temperature fluctuation influence of the inner ring flame on the temperature measurement of the. In addition, air is consumed by combustion, so that air on the outer side can be continuously sucked, the probe is cooled, the influence of high-temperature smoke on the probe is reduced, the effect is difficult to realize in the conventional lower air inlet dry-burning preventing combustor, and stable air flow is difficult to form due to the fact that a lower air inlet cabinet is sealed.

The fire hole setting on the inner ring fire lid 41 is on the periphery wall of inner ring fire lid 41, and in this embodiment, the fire hole on the inner ring fire lid 41 includes the big fire hole of a week that sets up along the little fire hole of a week that circumference set up and the big fire hole of a week that circumference set up, and little fire hole is located the top in big fire hole. The top surface of the inner ring fire cover 41 is provided with a blocking brim 412 extending outwards and downwards along the circumferential direction, and the edge of the blocking brim 412 is close to the upper part of the fire hole on the inner ring fire cover 41. Specifically, the edge of the blocking eave 412 is located on the axis of the small fire hole, and during operation, the blocking eave 412 can turn outwards the flame in the fire hole on the inner ring fire cover 41, so that the flame is far away from the temperature sensing probe 5 as far as possible, the temperature sensing probe 5 is protected, and the influence of the flame on the accurate temperature measurement of the temperature sensing probe 5 is reduced. And simultaneously, the service life of the temperature sensing probe 5 is correspondingly prolonged.

The top surface of the inner ring fire cover 41 is provided with a retaining ring 411 which extends upwards along the circumferential direction, the retaining ring 411 is positioned on the inner periphery of the fire hole of the inner ring fire cover 41, and then the flame in the fire hole is blocked outside the temperature sensing probe 5 during working, and meanwhile, the generated high-temperature smoke is also blocked, so that the influence of the flame and the high-temperature smoke on the accurate temperature measurement of the temperature sensing probe 5 is further reduced. And simultaneously, the service life of the temperature sensing probe 5 is correspondingly prolonged.

As shown in fig. 4, an ignition needle 6 is arranged on the base 1, the upper end of the ignition needle 6 is located beside the inner fire cover 41, and the distance from the top of the ignition needle 6 to the edge of the blocking ledge 412 is smaller than the radial distance from the ignition needle 6 to the outer peripheral wall of the inner fire cover 41. Therefore, during operation, the ignition needle 6 can discharge to the blocking eave 412, gas at the blocking eave 412 mainly comes out of the small flame stabilizing fire holes arranged on the inner ring fire cover 41, the aperture of the small flame stabilizing fire holes is small, the air flow speed is slow, the air flow is blocked by the blocking eave 412, the air flow speed is further reduced, and the ignition is stable and reliable. In addition, the blocking eaves 412 just block the small fire holes on the inner ring fire cover 41, and overflow flows downwards from the blocking eaves 412 and cannot block the small fire holes on the inner ring fire cover 41, so that even if a large hole is blocked, the success rate of ignition is not affected.

The lower portion of the inner ring housing body 32 has an inner jet pipe 34 whose inlet faces the first nozzle 21, and the lower portion of the outer ring housing body 33 has an outer jet pipe 35 whose inlet faces the second nozzle 22. In this embodiment, the inner ring seat 32 and the outer ring seat 33 are connected by an outer injection pipe 35.

In this embodiment, draw outward and penetrate pipe 35 and be provided with at least two in order to satisfy the demand of outer loop to more gas, draw outward respectively to penetrate pipe 35 and follow the circumference evenly distributed setting of inner ring pedestal 32, draw outward respectively to penetrate pipe 35 and the tangent connection of the periphery wall of inner ring pedestal 32, draw outward every to penetrate pipe 35 and correspond and set up a second nozzle 22. The outer injection pipe 35 in this embodiment is provided with two.

As shown in fig. 3, one inner injection pipe 34 is provided, and the first nozzle 21 is provided at the periphery of the first nozzle 21, so that the air supply of the first nozzle 21 is stable, the combustion of the inner ring of the burner is stable, and the influence of temperature fluctuation on the working process of the temperature sensing probe 5 is correspondingly reduced. And the jetting direction of the first nozzles 21 and the jetting direction of each second nozzle 22 have an angle therebetween. In this embodiment, the axial directions of the two injection pipes are parallel and the inlet directions are opposite, the first nozzle 21 is disposed close to one second nozzle 22, and an included angle between the injection direction of the first nozzle 21 and the injection direction of the second nozzle 22 close to the first nozzle 21 is 45 °, so that the injection direction of the first nozzle 21 is different from the injection directions of the two second nozzles 22. And the heights of the gas ejection ports of the first nozzles 21 and the respective second nozzles 22 are different. The heights of the gas ejection ports of the second nozzles 22 may be set to the same height or the heights of the gas ejection ports of the second nozzles 22 may be set to different heights depending on the number of the second nozzles 22. In this embodiment, the gas ejection port heights of the two second nozzles 22 are at the same height, and the height of the first nozzle 21 is lower than that of the second nozzle 22. The position setting of first nozzle 21 and second nozzle 22 in this embodiment has all avoided first nozzle 21 and second nozzle 22 to drawing the competition of penetrating the air from horizontal angle and highly, has improved the air of combustor inner and outer ring and has penetrated the ability for the combustion efficiency of combustor has been improved greatly.

The conventional upper air inlet burner arranges the inner ring nozzle 2 which works together with the inner injection pipe 34 at the innermost side, the inner ring load change is large in the combustion process, the flame form can also change and increase, and the problem that the inner ring nozzle 2 is seriously heated, so that the temperature measurement precision of the temperature sensing probe 5 is influenced is solved. In the embodiment, the first nozzle 21 is arranged outside the second nozzle 22, so that the influence of the first nozzle 21 on the heating of the combustor during operation is reduced, and the influence on the temperature measurement of the temperature sensing probe 5 is correspondingly reduced. The first nozzle 21 is arranged on the outer side, so that the cabinet door can be opened and closed without automatic flameout caused by pressure change.

As shown in fig. 2, in this embodiment, the outlet of the inner injection pipe 34 on the inner ring seat 32 is located at the opposite side of the upward inclined portion at the lower end of the inner ring seat 32, so that the gas entering the inner ring gas mixing chamber 341 forms a vortex, the gas mixing path is increased, the gas flow mixing is more sufficient, and the flow speed of the gas mixing is also increased.

On outer ring pedestal 33, the bottom plate of outer ring gas mixing chamber 342 draws between the export of penetrating pipe 35 outside two, draws the entry that penetrates pipe 35 gradually tilt up outward from, also makes the gas that gets into in the outer ring gas mixing chamber 342 form the vortex, has increased the gas mixing route for the air current mixes more fully, has also improved the velocity of flow who mixes the gas simultaneously, improves combustion efficiency.

As shown in fig. 3, in this embodiment, the inlets of the first nozzle 21 and the inner injection pipe 34 are both located below the outer ring seat 33, so that the overflow of the downflow can be prevented from blocking the inlet of the first nozzle 21 or the inner injection pipe 34, and the first nozzle 21 and the inner injection pipe 34 can work normally.

As shown in fig. 1, 4 and 5, at least one notch 4111 is circumferentially disposed on the retainer ring 411, the number of the notches 4111 is specifically set as required, in this embodiment, four notches 4111 are disposed, and each notch 4111 extends downward to the top surface of the inner fire cover 41. The top surface of the inner ring fire cover 41 is gradually inclined downwards from inside to outside along the radial direction. The outer circumferential wall of the inner ring seat body 32 is circumferentially provided with a flow guide plate 7, the flow guide plate 7 gradually inclines downwards from inside to outside along the radial direction, and the edge of the flow guide plate 7 can extend to the outside of the outer ring seat body 33 and has a gap with the outer ring seat body 33. The inlet of the outer injection pipe 35 and the second nozzle 22 are both positioned below the guide plate 7. In addition, the top surface of the outer ring fire cover 42 in this embodiment is also gradually inclined downward from the inside to the outside in the radial direction.

In operation, if a liquid spill occurs, when the liquid spill flows onto the outer fire cover 42, the liquid will be guided onto the panel 10 by the guiding action of the inclined top surface of the outer fire cover 42. When the overflow flows to the inner fire cover 41, the top surface of the inner fire cover 41 guides the overflow outwards, and the overflow on the inner side of the retainer ring 411 also guides the overflow outwards from the notch 4111 on the retainer ring 411, so as to prevent the overflow from adhering to the temperature sensing probe 5 and affecting the operation of the temperature sensing probe 5. Meanwhile, the overflowing liquid of the drainage can be drained to the guide plate 7 by the baffle brim 412 and then flows to the position outside the base 3 on the panel 10, so that a user can clean the panel conveniently. In the overflow drainage process, the fire hole on the inner ring fire cover 41 can be protected by the blocking eaves 412, so that the fire hole on the inner ring fire cover 41 is prevented from being blocked. Meanwhile, the guide plate 7 can guide overflow liquid, and can protect the inlet of the external injection pipe 35 and the second nozzle 22, so that the overflow liquid is prevented from blocking the inlet of the external injection pipe 35 and the second nozzle 22.

Claims

1. An upper air inlet double-ring burner comprises

The gas burner comprises a base (1) embedded on a panel (10), wherein a gas channel (11) is arranged in the base (1);

the nozzle (2) comprises a first nozzle (21) and a second nozzle (22) which are arranged on the base (1) and are respectively communicated with the gas channel (11);

the nozzle comprises a base (3), a gap (31) is formed between the base (3) and the base (1) in a supporting mode, the base (3) comprises an inner ring seat body (32) and an outer ring seat body (33) arranged on the periphery of the inner ring seat body (32) at intervals, the inner ring seat body (32) is provided with an inner injection pipe (34) with an inlet facing a first nozzle (21), and the outer ring seat body (33) is provided with an outer injection pipe (35) with an inlet facing a second nozzle (22);

the fire cover (4) comprises an inner ring fire cover (41) and an outer ring fire cover (42), the inner ring fire cover (41) is covered on the inner ring seat body (32) in a matching way and forms an inner ring air mixing chamber (341) with the inner ring seat body (32), and the outer ring fire cover (42) is covered on the outer ring seat body (33) in a matching way and forms an outer ring air mixing chamber (342) with the outer ring seat body (33);

the method is characterized in that: the temperature sensing probe (5) extending to the upper part of the inner ring fire cover (41) is arranged in the inner ring base body (32), a check ring (411) extends upwards along the circumferential direction on the top surface of the inner ring fire cover (41), and the check ring (411) is positioned on the inner periphery of a fire hole of the inner ring fire cover (41).

2. The upper intake double-ring burner of claim 1, wherein: the fire hole setting on the inner ring fire lid (41) is on the periphery wall of inner ring fire lid (41), the top surface of inner ring fire lid (41) is provided with along the radial outside and downwardly extending of circumference and keeps off eaves (412), the edge that keeps off eaves (412) is close to the top of the fire hole on the inner ring fire lid (41).

3. The upper intake double-ring burner of claim 2, wherein: an ignition needle (6) is arranged on the base (1), the upper end of the ignition needle (6) is located beside the inner ring fire cover (41), and the distance from the top of the ignition needle (6) to the edge of the blocking eaves (412) is smaller than the radial distance from the ignition needle (6) to the outer peripheral wall of the inner ring fire cover (41).

4. The upper intake double-ring burner according to any one of claims 1 to 3, wherein: at least one notch (4111) is formed in the retainer ring (411) along the circumferential direction; the top surface of the inner ring fire cover (41) is gradually inclined downwards from inside to outside along the radial direction.

5. The upper intake double-ring burner of claim 4, wherein: the outer peripheral wall of the inner ring seat body (32) is circumferentially provided with a guide plate (7), the guide plate (7) gradually inclines from inside to outside along the radial direction, and a gap is formed between the edge of the guide plate (7) and the outer ring seat body (33).

6. The upper intake double-ring burner of claim 5, wherein: the inner ring seat body (32) and the outer ring seat body (33) are connected through an outer injection pipe (35), and an inlet of the outer injection pipe (35) and the second nozzle (22) are located below the guide plate (7).

7. The upper intake double-ring burner of claim 6, wherein: the number of the outer injection pipes (35) is at least two, and each outer injection pipe (35) is arranged along the inner part

The ring base body (32) is uniformly distributed in the circumferential direction, and each outer injection pipe (35) is correspondingly provided with a second nozzle (22).

8. The upper intake double-ring burner of claim 7, wherein: each outer injection pipe (35) is tangent to the outer peripheral wall of the inner ring seat body (32).

9. The upper intake double-ring burner according to claim 7 or 8, wherein: the first nozzles (21) are arranged on the periphery of the first nozzles (21), and an included angle is formed between the spraying direction of the first nozzles (21) and the spraying direction of each second nozzle (22).

10. The upper intake double-ring burner of claim 9, wherein: the inlets of the first nozzle (21) and the inner injection pipe (34) are positioned below the outer ring seat body (33).

11. The upper intake double-ring burner according to claim 7 or 8, wherein: the heights of the gas outlets of the first nozzle (21) and the second nozzles (22) are different.

12. The upper intake double-ring burner according to any one of claims 1 to 3, wherein: the temperature sensing probe (5) is connected to the base (1), an installation channel (321) is arranged at the center of the inner ring base body (32) in a vertically penetrating mode, and the temperature sensing probe (5) is located in the installation channel (321).

13. The upper intake double-ring burner of claim 12, wherein: the base (1) is provided with an opening (12) corresponding to the arrangement position of the temperature sensing probe (5).