CN111102571A - Complete upper air intake burner - Google Patents

Abstract

The complete upper air inlet burner comprises an integrated fire cover, an integrated furnace end and a burner support, wherein the integrated fire cover covers the integrated furnace end, a central fire outlet hole and a main fire outlet hole are formed in the integrated fire cover, a central fire mixing cavity and a main fire mixing cavity are formed in the integrated furnace end, the integrated furnace end comprises a furnace end partition plate, a central fire ejector and a main fire ejector, the central fire ejector is fixed on the upper surface of the furnace end partition plate, the main fire ejector is fixed on the lower surface of the furnace end partition plate, the air outlet end of the central fire ejector is communicated with the central fire mixing cavity, the air outlet end of the main fire ejector is communicated with the main fire mixing cavity, the central fire mixing cavity is communicated with the central fire distributing cavity, and the main fire mixing cavity is communicated with the main fire distributing cavity; the central fire distributing cavity is communicated with the central fire outlet hole of the integrated fire cover, and the main fire distributing cavity is communicated with the main fire outlet hole of the integrated fire cover. The invention has the advantages of compact structure, good injection capability, high stability, large combustion power and high working reliability.

Description

Complete upper air intake burner

Technical Field

The invention relates to a complete upper air inlet burner.

Background

In the existing gas cooker and integrated cooker industries, most of burners adopt a lower air inlet combustion technology, although some burners adopt upper air inlet, the burner head is lifted on the basis of the lower air inlet burner to realize the supply of secondary air from the upper part of a panel, and the supplement of primary air does not realize the upper air inlet, so the burner cannot be called as a complete upper air inlet technology. When the burner is applied to a common gas stove, the cabinet door of the cabinet needs to be provided with a vent hole; when the burner is applied to an integrated stove, a wire operating mechanism for adjusting an air door needs to be arranged; the burner is harsh in installation condition, and the size of the vent hole and the stability of the wire operating mechanism directly influence the working reliability of the burner.

The existing burner mostly comprises a central fire cover and a main fire cover, wherein the central fire cover and the main fire cover are independent parts, the central fire cover is provided with a central fire hole, the main fire cover is provided with a main fire hole, and the structure is complex.

The central fire structure of the existing burner is independent, the flame of the central fire hole is sprayed out to the periphery of the burner, so that the central fire hole is easy to intersect with the outer ring fire of the burner, the phenomenon of unfixed combustion is easy to generate, the CO emission is high when the power is large, and the thermal efficiency is low.

The existing burner with part of upward air inlet has a small ejector and cannot meet the ejection requirement of large load, so that the heat load is small, only about 3.5-4.0kW is generated, the combustion flame is small, and the requirement of quick-frying Chinese food cannot be met. Meanwhile, the ejector is small, so that the adaptability to gas is poor, and the combustion stability is poor, so that the ejector is not well popularized.

The existing partial completely upper air inlet burner has the problems that the primary air and the secondary air have air flow interference during working, the phenomenon of air robbing exists, and the combustion stability is poor.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and provide a complete upper air inlet burner which has a compact structure and can prevent air flow interference and air robbing during combustion.

The complete upper air inlet burner comprises an integrated fire cover, an integrated furnace end and a burner support, wherein the integrated fire cover covers the integrated furnace end, a central fire outlet hole and a main fire outlet hole are formed in the integrated fire cover, a central fire mixing cavity and a main fire mixing cavity are formed in the integrated furnace end, the integrated furnace end comprises a furnace end partition plate, a central fire ejector and a main fire ejector, the central fire ejector is fixed on the upper surface of the furnace end partition plate, the main fire ejector is fixed on the lower surface of the furnace end partition plate, the air outlet end of the central fire ejector is communicated with the central fire mixing cavity, the air outlet end of the main fire ejector is communicated with the main fire mixing cavity, the central fire mixing cavity is communicated with the central fire distributing cavity, and the main fire mixing cavity is communicated with the main fire distributing cavity; the central fire distributing cavity is communicated with the central fire outlet hole of the integrated fire cover, and the main fire distributing cavity is communicated with the main fire outlet hole of the integrated fire cover; the burner support is provided with a nozzle mounting seat, the nozzle mounting seat is provided with a main fire nozzle and a central fire nozzle, the main fire nozzle is positioned below the burner partition plate, the central fire nozzle is positioned above the burner partition plate, the outer end surface of the main fire nozzle and the outer end surface of the central fire nozzle are positioned on the inner side of the outer edge of the burner partition plate, the main fire nozzle is coaxial with the air inlet end of the main fire ejector, the central fire nozzle is coaxial with the air inlet end of the central fire ejector, the outer end surface of the air inlet end of the central fire ejector and the outer end surface of the air inlet end of the main fire ejector are positioned on the inner side of the outer edge of the burner partition plate, a gap is formed between the outer end surface of the main fire nozzle and the outer end surface of the air inlet end of the main fire ejector, a gap is formed between the outer end surface of the central fire nozzle and the outer end surface of the air inlet end of the central fire ejector, the nozzle mounting seat is also provided with a main fire air inlet and a central fire air inlet, and a main fire air inlet are communicated with the, a central fire air inlet of the nozzle mounting seat is communicated with the central fire nozzle through a central fire air flow channel in the nozzle mounting seat, and a main fire air inlet and the central fire air inlet of the nozzle mounting seat are both externally connected with a gas pipeline; an ignition needle fixing frame and a thermocouple fixing frame are arranged on the combustor support, an ignition needle mounting hole is formed in the ignition needle fixing frame, a thermocouple mounting hole is formed in the thermocouple fixing frame, the thermocouple is arranged in the thermocouple mounting hole, and the ignition needle is arranged in the ignition needle mounting hole; the center of the integrated fire cover is provided with a through hole, and the upper end of the ignition needle and the upper end of the thermocouple both extend into the central through hole of the integrated fire cover.

The functions of the ignition needle and the thermocouple are the same as those of the ignition needle and the thermocouple in the existing burner, so the functions of the ignition needle and the thermocouple are not described again.

The integrated furnace end also comprises an upper baffle plate, a furnace end inner ring, a furnace end outer ring and a furnace end middle ring, wherein the upper baffle plate is arranged above the furnace end baffle plate, a through hole is formed in the center of the upper baffle plate, the central through hole of the upper baffle plate is communicated with the central through hole of the integrated fire cover, the furnace end inner ring is fixedly connected with the inner edge of the upper baffle plate, the furnace end outer ring is fixedly connected with the outer edge of the upper baffle plate, the furnace end inner ring, the furnace end middle ring and the furnace end outer ring are sequentially arranged from inside to outside, the furnace end inner ring, the furnace end middle ring and the furnace end;

one part of the upper partition plate between the furnace end inner ring and the furnace end middle ring is in a horizontal state, the other part of the upper partition plate between the furnace end inner ring and the furnace end middle ring is downwards concave to form a first lower concave part of the upper partition plate, the inner surface of the first lower concave part of the upper partition plate between the furnace end inner ring and the furnace end middle ring is the inner bottom surface of the central fire mixing cavity, and the lowest point of the inner bottom surface of the central fire mixing cavity is not higher than the lowest point of the outer end surface of the air outlet end of the central fire ejector, so that the air outlet end of the central fire ejector is communicated with the central fire mixing cavity; the two ends of the inner bottom surface of the central fire mixing cavity are arc-shaped surfaces, and the arc-shaped surfaces of the two ends of the inner bottom surface of the central fire mixing cavity are connected with the upper surface of the upper partition plate part which is positioned between the inner ring and the middle ring of the furnace end and is in a horizontal state; the outer edge of the inner bottom surface of the central fire mixing cavity is connected with the inner wall of the furnace end middle ring in a seamless mode, the inner edge of the inner bottom surface of the central fire mixing cavity is connected with the outer wall of the furnace end inner ring in a seamless mode, and the inner wall of the furnace end middle ring and the outer wall of the furnace end inner ring form two inner side surfaces of the central fire mixing cavity;

one part of the upper partition plate between the outer ring of the furnace end and the middle ring of the furnace end is in a horizontal state, the other part of the upper partition plate between the outer ring of the furnace end and the middle ring of the furnace end is recessed to form a second lower recessed part of the upper partition plate, the inner surface of the second lower recessed part of the upper partition plate between the outer ring of the furnace end and the middle ring of the furnace end is the inner bottom surface of the main fire mixing cavity, the inner bottom surface of the main fire mixing cavity extends out of the lower surface of the partition plate of the furnace end, and the lowest point of the inner bottom surface of the main fire mixing cavity is not higher than the lowest point of the outer end surface of the air outlet end of the main fire ejector, so that; the two ends of the inner bottom surface of the main fire mixing cavity are arc surfaces, and the arc surfaces at the two ends of the inner bottom surface of the main fire mixing cavity are connected with the upper surface of the upper partition plate part which is positioned between the outer ring of the furnace end and the middle ring of the furnace end and is in a horizontal state; the outer edge of the inner bottom surface of the main fire mixing cavity is connected with the inner wall of the outer ring of the furnace end in a seamless mode, the inner edge of the inner bottom surface of the main fire mixing cavity is connected with the outer wall of the middle ring of the furnace end in a seamless mode, and the inner wall of the outer ring of the furnace end and the outer wall of the middle ring of the furnace end form two inner side surfaces of the main fire mixing cavity.

The horizontal state part of the upper clapboard is formed by an upper clapboard part which is positioned between the furnace end inner ring and the furnace end middle ring and an upper clapboard part which is positioned between the furnace end outer ring and the furnace end middle ring and is in a horizontal state; the first lower concave part of the upper clapboard positioned between the inner ring of the furnace end and the middle ring of the furnace end, and the second lower concave part of the upper clapboard positioned between the outer ring of the furnace end and the middle ring of the furnace end jointly form the lower concave part of the upper clapboard.

Two secondary air channels and a central fire primary air channel are arranged in the integrated furnace end; two vertical clapboards are arranged between the horizontal state part of the upper clapboard and the furnace end clapboard, the top surfaces of the two vertical clapboards are fixedly connected with the lower surface of the horizontal state part of the upper clapboard of the integrated furnace end, the bottom surfaces of the two vertical clapboards are fixedly connected with the upper surface of the furnace end clapboard of the integrated furnace end, the inner end surfaces of the two vertical clapboards are fixedly connected with the outer walls of the two sides of the air inlet end of the central fire ejector respectively, and the outer end surfaces of the two vertical clapboards extend to the position under the outer ring of the furnace end. A cavity enclosed by the two vertical partition plates, the horizontal part of the upper partition plate and the furnace end partition plate is a central fire primary air channel, the inner end of the central fire primary air channel is communicated with the air inlet end of the central fire ejector, and the outer end of the central fire primary air channel is communicated with the atmosphere. A cavity defined by the vertical partition plate, the lower concave part of the upper partition plate, the horizontal state part of the upper partition plate and the furnace end partition plate is a secondary air channel, and a cavity defined by the other vertical partition plate, the lower concave part of the upper partition plate, the horizontal state part of the upper partition plate and the furnace end partition plate is another secondary air channel; the central fire primary air channel is positioned between the two secondary air channels, and the adjacent secondary air channels and the central fire primary air channel are separated by corresponding vertical clapboards. The outer ends of the two secondary air channels are communicated with the atmosphere, and the inner ends of the two secondary air channels are communicated with the central through hole of the upper partition plate.

The integrated fire cover comprises a fire cover body, an outer ring plate, an inner ring plate and a middle ring plate, wherein a through hole is formed in the center of the fire cover body, the central through hole of the fire cover body is the central through hole of the integrated fire cover, the outer ring plate of the integrated fire cover is fixedly connected with the outer edge of the fire cover body, the inner ring plate of the integrated fire cover is fixedly connected with the inner edge of the fire cover body, and the middle ring plate of the integrated fire cover is fixed on the lower surface of the fire cover body.

The central fire outlet hole is arranged on the fire cover body positioned between the inner ring plate and the middle ring plate; or the central fire outlet hole is arranged on the inner ring plate; or the inner ring plate and the fire cover body between the inner ring plate and the middle ring plate are both provided with a central fire outlet hole.

The main fire outlet hole is arranged on the fire cover body between the outer ring plate and the middle ring plate of the integrated fire cover; or the main fire outlet hole is arranged on the outer ring plate of the integrated fire cover; or the outer ring plate of the integrated fire cover and the fire cover body between the outer ring plate and the middle ring plate are both provided with main fire outlet holes.

The central axis of the central fire hole is obliquely upward intersected with the central axis of the integrated fire cover, so that mixed air flow can be sprayed out from the central fire hole towards the central axis of the burner. When the burner works, the central flame generated by the mixed gas flow sprayed from the central fire outlet hole is firstly concentrated at the center of the pot bottom and then is diffused from the center of the pot bottom to the periphery of the pot, so that the heating of the center of the pot bottom is facilitated, meanwhile, as the flame is diffused outwards from the center, the contact path with the pot bottom is prolonged, and the thermal efficiency is effectively improved.

An outer ring plate of the integrated fire cover is matched and covered on a furnace end outer ring of the integrated furnace end, a middle ring plate of the integrated fire cover is matched and covered on a furnace end middle ring of the integrated furnace end, an inner ring plate of the integrated fire cover is matched and covered on a furnace end inner ring of the integrated furnace end, a cavity which is enclosed by the outer ring plate of the integrated fire cover, a fire cover body of the integrated fire cover, the middle ring plate of the integrated fire cover, the furnace end outer ring of the integrated furnace end, an upper partition plate part which is positioned between the furnace end outer ring and the furnace end middle ring and is in a horizontal state, and the furnace end middle ring of the integrated furnace end is a main fire distribution; the fire cover comprises an inner ring plate of the integrated fire cover, a fire cover body of the integrated fire cover, a middle ring plate of the integrated fire cover, a furnace end inner ring of the integrated furnace end, an upper partition plate part which is positioned between the furnace end inner ring and the furnace end middle ring and is in a horizontal state, and a cavity which is surrounded by the furnace end middle ring of the integrated furnace end is a central fire distribution cavity.

Be equipped with the flame hole even on the fire lid body of integrative fire lid, the flame hole even runs through the upper and lower surface of fire lid body, the outer end of flame hole even goes out the fire hole with the main fire of integrative fire lid and is connected, the inner of flame hole even extends to the periphery side that the central fire of integrative fire lid goes out the fire hole, main fire goes out fire hole and central fire and goes out through flame hole transmission flame between the fire hole, the flame that the main fire goes out the fire hole and the flame that the central fire goes out the fire hole can not form crossing, and the combustion is stable, be favorable to doing benefit to the promotion of power and the improvement of efficiency.

Open on the interior crown plate of integrative fire lid has the fire lid spacing groove, be fixed with on the furnace end inner ring of integrative furnace end with the spacing arch of fire lid spacing groove adaptation, during spacing arch stretched into fire lid spacing groove for the installation direction of integrative fire lid of restriction to do benefit to and realize the circumferential positioning of integrative fire lid on integrative furnace end.

The completely upper air inlet burner also comprises a main fire equalizing plate and a central fire equalizing plate, wherein a main fire equalizing hole is formed in the main fire equalizing plate, a central fire equalizing hole is formed in the central fire equalizing plate, a main fire equalizing plate mounting column and a central fire equalizing plate mounting column are fixed on the lower surface of the fire cover body of the integrated fire cover, the main fire equalizing plate is fixed on the main fire equalizing plate mounting column, and the central fire equalizing plate is fixed on the central fire equalizing plate mounting column; the main fire equalizing plate is positioned above the main fire mixing cavity, and the central fire equalizing plate is positioned above the central fire mixing cavity.

The lower ends of the main fire equalizing plate mounting columns and the lower ends of the central fire equalizing plate mounting columns are both provided with mounting holes, and the main fire equalizing plate and the central fire equalizing plate are also provided with mounting holes; the main fire equalizing plate and the main fire equalizing plate mounting column can be fixedly connected through connecting pieces arranged in the lower end mounting hole of the main fire equalizing plate mounting column and the mounting hole of the main fire equalizing plate; the central fire uniform plate and the central fire uniform plate mounting column can be fixedly connected through connecting pieces arranged in the lower end mounting hole of the central fire uniform plate mounting column and the mounting hole of the central fire uniform plate. The connecting member may be a screw or the like. The mode of linking firmly of the even fire board of center fire and the even fire board erection column of center fire, the mode of linking firmly of the even fire board of main fire and the even fire board erection column of main fire can also adopt other current mature modes, like riveting etc. and no longer detailed description here.

The cross-section of main fire hybrid chamber is for falling trapezoidal to do benefit to and make the air current that flows into main fire hybrid chamber from the end of giving vent to anger of main fire ejector can mostly collect in the equal fire board department of main fire, the cross-section is for falling trapezoidal main fire hybrid chamber and the equal fire board cooperation back of main fire, can be better with the mixed air current reposition of redundant personnel of main fire hybrid chamber to the main fire in divide the whole cavity of fire chamber. The cross-section of center fire hybrid chamber is for falling trapezoidal to do benefit to and make the air current that flows into center fire hybrid chamber from the end of giving vent to anger of center fire ejector can mostly gather in center fire uniform fire board department, the cross-section is for falling trapezoidal center fire hybrid chamber and the cooperation back of center fire uniform fire board, can be better with the mixed air current reposition of redundant personnel to the whole cavity of center fire branch fire chamber in the center fire hybrid chamber.

Further, the thick outer fringe of the thick center from the furnace end baffle of following of furnace end baffle reduces gradually to do benefit to the liquid that drops to on the furnace end baffle and can flow out through secondary air channel.

Further, a water tray is arranged between the integrated furnace end and the combustor support. The water tray is provided with short support column mounting holes (the number is preferably one) and long support column mounting holes (the number is preferably two), the upper surface of the burner support is also provided with short support column mounting holes and long support column mounting holes, the lower end of the short support column penetrates through the short support column mounting holes on the water tray and then extends into the short support column mounting holes on the upper surface of the burner support, and the lower end of the long support column penetrates through the long support column mounting holes on the water tray and then extends into the long support column mounting holes on the upper surface of the burner support; the top surface of short support column and the top surface of long support column all contact with the lower surface of integrative furnace end, are favorable to reducing the mounting screw quantity on water tray surface like this to convenient cleaning promotes whole outward appearance effect simultaneously.

The outer end face of the main fire nozzle and the main fire ejector are both located on the inner side of the outer edge of the furnace end partition plate, so that liquid which is mistakenly operated or drips to the furnace end partition plate can be distributed to the water tray, and interference to combustion stability is reduced.

The lower surface of the combustor support is fixed with a lower connecting column, the lower end of the lower connecting column is provided with a connecting hole, the chassis of the gas cooker or the integrated cooker product is also provided with a connecting hole, and the connecting hole at the lower end of the lower connecting column is connected with the connecting hole on the chassis of the gas cooker or the integrated cooker product through a connecting piece. The connecting member may be a bolt or the like.

Furthermore, a nozzle mounting seat through hole, an ignition needle fixing frame through hole and a thermocouple fixing frame through hole are formed in the water disc, a nozzle mounting seat through hole is also formed in the furnace end partition plate, and the nozzle mounting seat on the combustor support upwards sequentially penetrates through the nozzle mounting seat through hole of the water disc and the nozzle mounting seat through hole of the furnace end partition plate. An ignition needle fixing frame through hole and a thermocouple fixing frame through hole are also formed in the furnace end partition plate; the upper end of ignition needle mount is from supreme ignition needle mount poling hole that passes the water tray and the ignition needle mount poling hole of furnace end baffle in proper order down, and the upper end of thermocouple mount is from supreme thermocouple mount poling hole that passes the water tray and the thermocouple mount poling hole of furnace end baffle in proper order down, further realizes the circumferential positioning of integrative furnace end.

The furnace end clapboard is also provided with a central fire nozzle through hole, and the central fire nozzle through hole on the furnace end clapboard is communicated with the nozzle mounting seat through hole on the furnace end clapboard so as to be beneficial to mounting the central fire nozzle and the nozzle mounting seat provided with the central fire nozzle to pass through the furnace end clapboard together. The central fire nozzle is positioned above the main fire nozzle.

The upper surface of furnace end baffle is arranged in should transversely in to main fire ejector, and the lower surface of furnace end baffle is arranged in transversely in to central fire ejector to when reducing the combustor diameter, furthest's length of extension main fire ejector and central fire ejector promotes and draws the coefficient, satisfies high-power burning demand, and red fire yellow flame scheduling problem can not appear for a long time in the burning.

Further, the anterior segment of center fire nozzle is equipped with the external screw thread, and the middle section of center fire nozzle is equipped with the induced air hole, and the back end of center fire nozzle also is equipped with the external screw thread, and the anterior segment and the middle section cover of center fire nozzle have the inner wall to be equipped with internal screw thread center fire air door cover, and it has center fire nozzle mounting hole to open on the nozzle mount pad, and center fire nozzle passes through the external screw thread of center fire nozzle back end and installs on the center fire nozzle mounting hole of nozzle mount pad. Through the center fire air door sleeve of rotation, the coincidence area size of the bleed hole of adjustable center fire air door sleeve and center fire nozzle, the bleed hole of the center fire nozzle that is not sheltered by center fire air door sleeve can introduce the air admission center fire nozzle in, so realize the regulation of the bleed hole of center fire nozzle and introduce the air quantity size to make combustor adaptability better, stability is higher.

The main fire nozzle has the same structure as the center fire nozzle. In a similar way, the front section of the main fire nozzle is provided with external threads, the middle section of the main fire nozzle is provided with an air introducing hole, the rear section of the main fire nozzle is also provided with external threads, the front section and the middle section of the main fire nozzle are sleeved with a main fire air door sleeve with an inner wall provided with internal threads, a main fire nozzle mounting hole is formed in the nozzle mounting seat, and the main fire nozzle is mounted in the main fire nozzle mounting hole of the nozzle mounting seat through the external threads of the rear section of the main fire nozzle. Through rotatory main fire air door pocket, the coincident area size of the bleed hole of adjustable main fire air door pocket and main fire nozzle, the bleed hole of the main fire nozzle that is not sheltered by main fire air door pocket can introduce the air and get into main fire nozzle in, so realize the regulation of the bleed hole of main fire nozzle and introduce the air quantity size to make combustor adaptability better, stability is higher.

The inner surface of the first lower concave part of the upper partition plate between the inner ring and the middle ring of the furnace end is the inner bottom surface of the central fire mixing cavity, and the inner surface of the second lower concave part of the upper partition plate between the outer ring and the middle ring of the furnace end is the inner bottom surface of the main fire mixing cavity.

When the gas injection nozzle works, the main fire gas inlet and the central fire gas inlet of the nozzle mounting seat are both externally connected with gas pipelines, gas enters the main fire gas inlet and the central fire gas inlet through the gas pipelines, the gas entering the central fire gas inlet is sprayed out from the central fire nozzle, and the gas entering the main fire gas inlet is sprayed out from the main fire nozzle. The air near the air inlet end of the main fire ejector is called primary air required by the main fire ejector, the primary air required by the main fire ejector is introduced from the lower part of the furnace end partition plate, the air near the air inlet end of the central fire ejector is called primary air required by the central fire ejector, and the primary air required by the central fire ejector is introduced from the primary air channel of the central fire above the furnace end partition plate. The gas sprayed from the central fire nozzle is mixed with primary air introduced by the central fire ejector from a central fire primary air channel above the furnace end partition plate, enters the central fire ejector through the air inlet end of the central fire ejector and is sprayed out from the air outlet end of the central fire ejector. The fuel gas sprayed from the main fire nozzle is mixed with primary air introduced from the lower part of the furnace end partition plate of the main fire ejector, enters the main fire ejector through the air inlet end of the main fire ejector and is sprayed out from the air outlet end of the main fire ejector. The mixed air of primary air and gas ejected from the air outlet end of the central fire ejector enters the central fire mixing cavity to be mixed, then flows into the central fire distributing cavity after being evenly distributed by the central fire equalizing plate, is ejected from the central fire outlet hole of the integrated fire cover, is ignited by the ignition needle and then is combusted, and flame combusted after being ignited by the ignition needle is transferred to the main fire outlet hole under the action of the flame connecting hole. The mixed airflow of the primary air and the fuel gas sprayed from the air outlet end of the main fire ejector flows into the main fire mixing cavity to be mixed, then flows into the main fire branch fire cavity after being equally divided by the main fire equalizing plate, and finally is sprayed from the main fire outlet hole of the integrated fire cover, and the mixed airflow sprayed from the main fire outlet hole starts to burn under the action of flame transmitted to the main fire outlet hole through the flame connecting hole. The mixed air ejected from the main fire hole of the integrated fire cover and the combustion promoting air ejected from the central fire hole of the integrated fire cover are called as secondary air during combustion, and the secondary air mainly comprises air on the periphery of the integrated fire cover and air in two secondary air channels.

The central fire nozzle is coaxial with the air inlet end of the central fire ejector, the main fire nozzle is coaxial with the air inlet end of the main fire ejector, a gap exists between the outer end face of the main fire nozzle and the outer end face of the air inlet end of the main fire ejector, and a gap exists between the outer end face of the central fire nozzle and the outer end face of the air inlet end of the central fire ejector, so that primary air can be ejected into the central fire ejector and the main fire ejector.

The upper surface that the furnace end baffle is fixed in to central fire ejector, main fire ejector is fixed in the lower surface of furnace end baffle, the outer terminal surface of the inlet end of central fire ejector and the outer terminal surface of the inlet end of main fire ejector all are located the outer fringe inboard of furnace end baffle, under the effect of furnace end baffle, keep apart central required primary air of fire ejector and main required primary air of fire ejector, the required primary air of main fire ejector is introduced from furnace end baffle below, the required primary air of central fire ejector is introduced from the central fire primary air passageway of furnace end baffle top, play and prevent robbing gas, the effect of interference, stability with the promotion burning. The adjacent secondary air channel and the central fire primary air channel are separated by a vertical partition plate, secondary air in the secondary air channel and primary air required by the central fire ejector are isolated, and the effects of preventing gas robbery and interference are further played to improve the combustion stability.

Primary air and secondary air all get into the combustor from the water tray top, and gas cooking utensils or integrated kitchen product panel below need not into the air, have realized going up the air inlet completely, do not have special requirement to the installation condition, and the cupboard cabinet door need not to set up the ventilation hole when being applied to ordinary gas-cooker, also need not to set up when being applied to integrated kitchen and act as go-between and operate the mechanism, and application scope is wider, and operational reliability is high.

The end and the main fire hybrid chamber intercommunication of giving vent to anger of main fire ejector, the end and the central fire hybrid chamber intercommunication of giving vent to anger of central fire ejector for gas and air mixing are more even, and combustion efficiency is high, and the efficiency is high, and stability is good, in order to do benefit to and form high-efficient stable combustion.

When the cabinet door is applied to a common gas stove, the cabinet door does not need to be provided with an air hole, so that the overall harmony of a cabinet room is better improved; primary air and secondary air all get into the combustor from the water tray top, and the outer fringe of water tray is pressed on the panel of gas cooking utensils (or integrated kitchen product), have stopped the deposit of gas and defects such as tempering, the effectual inside temperature rise of gas cooking utensils or integrated kitchen complete machine that has reduced reduces the heat transfer to the product inside, and the electrical control spare of product, the durability of sealing member are better, the better stability and the reliability of having promoted gas cooking utensils or integrated kitchen product. When the invention is applied to the integrated stove, the upper air inlet is adopted by the burner, so that a wire operating mechanism is not required to be arranged on the integrated stove, and an air door is not required to be adjusted by the wire operating mechanism, thus the invention is more convenient to use. And moreover, as the lower part of the integrated cooker is generally provided with a strong current structure, such as a motor, a steaming oven and other strong current equipment, and the combustor adopts an upper air inlet structure, the structure is similar to that of a common gas cooker, so that the safety and the stability of the product are better improved.

The invention has compact structure, good stability and large combustion power, is suitable for gas cooker products such as gas cookers, integrated cookers and the like, is particularly suitable for Chinese food cooking, has high space utilization rate and high working reliability, can effectively reduce energy utilization and material consumption, and is suitable for mass production.

Drawings

Fig. 1 is an overall exploded view of the fully upwind burner shown in example 1.

Fig. 2 is a perspective view of an integrated fire cover of the fully overfire air burner of example 1.

Fig. 3 is a perspective view of the assembled integrated fire cover, main fire equalizing plate and center fire equalizing plate of the fully updraft burner of example 1.

Fig. 4 is a perspective view of an integrated burner head of the fully updraft burner of example 1.

Fig. 5 is another perspective view of the integrated burner head of the fully overfire air burner of example 1 showing the main fire mixing chamber and the central fire mixing chamber.

Fig. 6 is a perspective view of the burner mount of the fully overfire air burner shown in example 1.

Fig. 7 is a perspective view of the assembled water tray, short support posts, long support posts and nozzle mount of the full updraft burner of example 1.

Fig. 8 is a perspective view of the water tray of the fully overfire air burner shown in example 1.

Fig. 9 is another perspective view of the integrated fire cover of the fully overfire air burner of embodiment 1.

Fig. 10 is another perspective view of the integrated burner head of the fully overfire air burner of example 1 showing two secondary air passages.

FIG. 11 is a perspective view of the main burner nozzle of the fully overfire air burner of example 1.

Fig. 12 is a perspective view of the assembled main fire nozzle and main fire damper cover of the fully overfire air burner of example 1.

Fig. 13 is a back view of the integrated burner head of the fully updraft burner of example 1.

Fig. 14 is a perspective view of the integrated burner head and water tray of the complete upper intake burner according to embodiment 1 after assembly.

In the figure: 1. an integrative fire lid, 2, an integrative furnace end, 3, a burner support, 4, a central fire outlet, 5, a main fire outlet, 6, a central fire mixing cavity, 7, a main fire mixing cavity, 8, a central fire dividing cavity, 9, a main fire dividing cavity, 10, a furnace end partition plate, 11, a central fire ejector, 11A, an air inlet end of the central fire ejector, 11B, an air outlet end of the central fire ejector, 12, a main fire ejector, 12A, an air inlet end of the main fire ejector, 12B, an air outlet end of the main fire ejector, 13, a nozzle mounting seat, 14, a main fire nozzle, 15, a central fire nozzle, 16, a main fire air inlet, 17, a central fire air inlet, a furnace end 18, an ignition needle fixing frame, 19, a thermocouple fixing frame, 20, an ignition needle, 21, a thermocouple, 22, a central through hole of the integrative fire lid, 23, an integrative upper partition plate, 24, an integrative inner ring, 25, an integrative furnace end, a furnace end, and a burner, A furnace end middle ring of the integrated furnace end, 26, a furnace end outer ring of the integrated furnace end, 27, a central through hole of the upper partition plate, 28, an inner bottom surface of the central fire mixing cavity, 29, arc surfaces at two ends of the inner bottom surface of the central fire mixing cavity, 30, an inner bottom surface of the main fire mixing cavity, 31, arc surfaces at two ends of the inner bottom surface of the main fire mixing cavity, 32, a horizontal state part of the upper partition plate, 33, a lower concave part of the upper partition plate, 34, a secondary air channel, 35, a central fire primary air channel, 36, a vertical partition plate, 37, a fire cover body of the integrated fire cover, 38, an inner ring plate of the integrated fire cover, 39, a middle ring plate of the integrated fire cover, 40, an outer ring plate of the integrated fire cover, 41, a flame connecting hole, 42, a fire cover limiting groove, 43, a limiting bulge, 44, a main fire equalizing plate, 45, a central fire equalizing plate, 46, a main fire equalizing hole, 47, a central fire equalizing hole, 48 and a main fire equalizing plate mounting, 49. a central fire equalizing plate mounting post, a main fire equalizing plate mounting hole, a central fire equalizing plate mounting hole, a water tray mounting hole, a short support post mounting hole on the water tray, a water tray mounting hole, a long support post mounting hole on the water tray, a short support post mounting hole on the upper surface of a burner support, a long support post mounting hole on the upper surface of a burner support, a short support post 57, a long support post 58, a long support post, a lower connecting post 59, a lower connecting post 60, a nozzle mounting seat through-hole on the water tray, a nozzle mounting seat through-hole on 61, an ignition needle mounting seat through-hole on the water tray 62, a thermocouple mounting seat through-hole on the water tray 63, a nozzle mounting seat through-hole on the burner baffle, a central fire air door cover 64, an ignition needle mounting seat through-hole on the burner baffle, a thermocouple mounting seat through-hole on the burner baffle 65, 70. the central fire nozzle hole on the furnace end clapboard.

Detailed Description

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

Referring to fig. 1-14, the completely upper air inlet burner comprises an integrated fire cover 1, an integrated burner head 2 and a burner support 3, wherein the integrated fire cover 1 covers the integrated burner head 2, the integrated fire cover 1 is provided with a central fire outlet 4 and a main fire outlet 5, the integrated burner head 2 is internally provided with a central fire mixing cavity 6 and a main fire mixing cavity 7, the integrated burner head 2 comprises a burner partition plate 10, a central fire ejector 11 and a main fire ejector 12, the central fire ejector 11 is fixed on the upper surface of the burner partition plate 10, the main fire ejector 12 is fixed on the lower surface of the burner partition plate 10, an air outlet end 11B of the central fire ejector 11 is communicated with the central fire mixing cavity 6, an air outlet end 12B of the main fire ejector 12 is communicated with the main fire mixing cavity 7, the central fire mixing cavity 6 is communicated with the central fire distribution cavity 8, and the main fire mixing cavity 7 is communicated with the main fire distribution cavity 9; the central fire distributing cavity 8 is communicated with the central fire outlet hole 4 of the integrated fire cover 1, and the main fire distributing cavity 9 is communicated with the main fire outlet hole 5 of the integrated fire cover 1; the burner support 3 is provided with a nozzle mounting seat 13, the nozzle mounting seat 13 is provided with a main fire nozzle 14 and a central fire nozzle 15, the main fire nozzle 14 is positioned below the burner partition plate 10, the central fire nozzle 15 is positioned above the burner partition plate 10, the outer end surface of the main fire nozzle 14 and the outer end surface of the central fire nozzle 15 are both positioned at the inner side of the outer edge of the burner partition plate 10, the main fire nozzle 14 is coaxial with the air inlet end 12A of the main fire ejector 12, the central fire nozzle 15 is coaxial with the air inlet end 11A of the central fire ejector 11, the outer end surface of the air inlet end 11A of the central fire ejector 11 and the outer end surface of the air inlet end 12A of the main fire ejector 12 are both positioned at the inner side of the outer edge of the burner partition plate 10, a gap is formed between the outer end surface of the main fire nozzle 14 and the outer end surface of the air inlet end 12A of the main fire ejector 12, a gap is formed between the outer end surface of the central fire nozzle 15 and the outer end surface of the air inlet, the nozzle mounting base 13 is also provided with a main fire air inlet 16 and a central fire air inlet 17, the main fire air inlet 16 of the nozzle mounting base 13 is communicated with the main fire nozzle 14 through a main fire air flow channel (not shown) in the nozzle mounting base 13, the central fire air inlet 17 of the nozzle mounting base 13 is communicated with the central fire nozzle 15 through a central fire air flow channel (not shown) in the nozzle mounting base 13, and the main fire air inlet 16 and the central fire air inlet 17 of the nozzle mounting base 13 are both externally connected with a gas pipeline (not shown); an ignition needle fixing frame 18 and a thermocouple fixing frame 19 are arranged on the combustor support 3, an ignition needle mounting hole (not shown in the figure) is formed in the ignition needle fixing frame 18, a thermocouple mounting hole (not shown in the figure) is formed in the thermocouple fixing frame 19, a thermocouple 21 is arranged in the thermocouple mounting hole, and an ignition needle 20 is arranged in the ignition needle mounting hole; the center of the integrated fire cover 1 is provided with a through hole 22, and the upper end of the ignition needle 20 and the upper end of the thermocouple 21 both extend into the central through hole 22 of the integrated fire cover 1.

The functions of the ignition needle 20 and the thermocouple 21 are the same as those of the ignition needle and the thermocouple in the conventional burner, so the functions of the ignition needle and the thermocouple are not described again.

The integrated furnace end 2 further comprises an upper partition plate 23, a furnace end inner ring 24, a furnace end outer ring 26 and a furnace end intermediate ring 25, the upper partition plate 23 is arranged above the furnace end partition plate 10, a through hole 27 is formed in the center of the upper partition plate 23, the central through hole 27 of the upper partition plate 23 is communicated with the central through hole 22 of the integrated fire cover 1, the furnace end inner ring 24 is fixedly connected with the inner edge of the upper partition plate 23, the furnace end outer ring 26 is fixedly connected with the outer edge of the upper partition plate 23, the furnace end inner ring 24, the furnace end intermediate ring 25 and the furnace end outer ring 26 are sequentially arranged from inside to outside, the furnace end inner ring 24, the furnace end intermediate ring 25 and the furnace end outer ring 26 are identical to;

a part of the upper partition plate 23 positioned between the burner inner ring 24 and the burner middle ring 25 is in a horizontal state, the other part of the upper partition plate 23 positioned between the burner inner ring 24 and the burner middle ring 25 is recessed to form a first lower recessed part of the upper partition plate 23, the inner surface of the first lower recessed part of the upper partition plate 23 positioned between the burner inner ring 24 and the burner middle ring 25 is the inner bottom surface 28 of the central fire mixing cavity 6, and the lowest point of the inner bottom surface 28 of the central fire mixing cavity 6 is not higher than the lowest point of the outer end surface of the air outlet end 11B of the central fire ejector 11, so that the air outlet end 11B of the central fire ejector 11 is communicated with the central fire mixing cavity 6; both ends of the inner bottom surface 28 of the central fire mixing cavity 6 are arc-shaped surfaces 29, and the arc-shaped surfaces 29 at both ends of the inner bottom surface 28 of the central fire mixing cavity 6 are connected with the upper surface of the upper partition plate part which is positioned between the furnace end inner ring 24 and the furnace end middle ring 25 and is in a horizontal state; the outer edge of the inner bottom surface 28 of the central fire mixing cavity 6 is in seamless connection with the inner wall of the furnace end middle ring 25, the inner edge of the inner bottom surface 28 of the central fire mixing cavity 6 is in seamless connection with the outer wall of the furnace end inner ring 24, and the inner wall of the furnace end middle ring 25 and the outer wall of the furnace end inner ring 24 form two inner side surfaces of the central fire mixing cavity 6;

one part of the upper partition plate 23 positioned between the burner outer ring 26 and the burner middle ring 25 is in a horizontal state, the other part of the upper partition plate 23 positioned between the burner outer ring 26 and the burner middle ring 25 is recessed to form a second lower concave part of an upper partition plate 23, the inner surface of the second lower concave part of the upper partition plate 23 positioned between the burner outer ring 26 and the burner middle ring 25 is an inner bottom surface 30 of the main fire mixing cavity 7, the inner bottom surface 30 of the main fire mixing cavity 7 extends out of the lower surface of the burner partition plate 10, and the lowest point of the inner bottom surface 30 of the main fire mixing cavity 7 is not higher than the lowest point of the outer end surface of the air outlet end 12B of the main fire ejector 12, so that the air outlet end 12B of the main fire ejector 12 is communicated with the main fire mixing cavity 7; both ends of the inner bottom surface 30 of the main fire mixing chamber 7 are arc-shaped surfaces 31, and both the arc-shaped surfaces 31 at both ends of the inner bottom surface 30 of the main fire mixing chamber 7 are connected with the upper surface of the horizontal upper clapboard 23 part between the furnace end outer ring 26 and the furnace end middle ring 25; the outer edge of the inner bottom surface 30 of the main fire mixing cavity 7 is in seamless connection with the inner wall of the furnace end outer ring 26, the inner edge of the inner bottom surface 30 of the main fire mixing cavity 7 is in seamless connection with the outer wall of the furnace end middle ring 25, and the inner wall of the furnace end outer ring 26 and the outer wall of the furnace end middle ring 25 form two inner side surfaces of the main fire mixing cavity 7.

An upper partition plate part which is positioned between the furnace end inner ring 24 and the furnace end middle ring 25 and is in a horizontal state, and an upper partition plate part which is positioned between the furnace end outer ring 26 and the furnace end middle ring 25 and is in a horizontal state, which jointly form a horizontal state part 32 of the upper partition plate; the first lower recess of the upper partition between the burner inner ring 24 and the burner intermediate ring 25 and the second lower recess of the upper partition between the burner outer ring 26 and the burner intermediate ring 25 together constitute the lower recess 33 of the upper partition.

Two secondary air channels 34 and a central fire primary air channel 35 are arranged in the integrated furnace end 2; two vertical partition plates 36 are arranged between the horizontal state portion 32 of the upper partition plate 23 and the furnace end partition plate 10, the top surfaces of the two vertical partition plates 36 are fixedly connected with the lower surface of the horizontal state portion 32 of the upper partition plate 23 of the integrated furnace end 2, the bottom surfaces of the two vertical partition plates 36 are fixedly connected with the upper surface of the furnace end partition plate 10 of the integrated furnace end 2, the inner end surfaces of the two vertical partition plates 36 are fixedly connected with the outer walls of the two sides of the air inlet end 11A of the central fire ejector 11 respectively, and the outer end surfaces of the two vertical partition plates 36 extend to the position right below the furnace end outer ring 26. A cavity formed by the two vertical partition plates 36, the horizontal part 32 of the upper partition plate 23 and the furnace end partition plate 10 is a central fire primary air channel 35, the inner end of the central fire primary air channel 35 is communicated with the air inlet end 11A of the central fire ejector 11, and the outer end of the central fire primary air channel 35 is communicated with the atmosphere. A cavity surrounded by one of the vertical partition plate 36, the lower concave part 33 of the upper partition plate 23, the horizontal state part 32 of the upper partition plate 23 and the furnace end partition plate 10 is a secondary air channel 34, and a cavity surrounded by the other of the vertical partition plate 36, the lower concave part 33 of the upper partition plate 23, the horizontal state part 32 of the upper partition plate 23 and the furnace end partition plate 10 is another secondary air channel 34; the central fire primary air passage 35 is located between two secondary air passages 34, and adjacent secondary air passages 34 and central fire primary air passages 35 are separated by respective vertical partitions 36. The outer ends of the two secondary air passages 34 are both communicated with the atmosphere, and the inner ends of the two secondary air passages 34 are both communicated with the central through hole 27 of the upper partition plate 23.

The integrated fire cover 1 comprises a fire cover body 37, an outer ring plate 40, an inner ring plate 38 and a middle ring plate 39, wherein a through hole is formed in the center of the fire cover body 37, the central through hole of the fire cover body 37 is the central through hole 22 of the integrated fire cover 1, the outer ring plate 40 of the integrated fire cover 1 is fixedly connected with the outer edge of the fire cover body 37, the inner ring plate 38 of the integrated fire cover 1 is fixedly connected with the inner edge of the fire cover body 37, and the middle ring plate 39 of the integrated fire cover 1 is fixed on the lower surface of the fire cover body 37.

In this embodiment, the central fire hole 4 is provided in the fire cover body 37 between the inner ring plate 38 and the middle ring plate 39. In actual manufacturing, the central fire outlet 4 can also be arranged on the inner ring plate 38; or, the central fire outlet 4 is arranged on the inner ring plate 38 and the fire cover body 37 between the inner ring plate 38 and the middle ring plate 39. The opening position of the central fire hole 4 can be selected according to actual requirements.

In this embodiment, the main fire outlet 5 is provided on the outer ring plate 40 of the integrated fire cover 1. In practical manufacture, the main fire outlet 5 can be arranged on the fire cover body 37 between the outer ring plate 40 and the middle ring plate 39 of the integrated fire cover 1; alternatively, the main fire hole 5 may be formed in the fire cap body 37 between the outer ring plate 40 and the middle ring plate 39 of the integrated fire cap 1 and in the outer ring plate 40 of the integrated fire cap 1. The opening position of the main fire outlet hole can be selected according to actual requirements.

The central axis of the central fire hole 4 is obliquely upward intersected with the central axis of the integrated fire cover 1, so that mixed air flow can be sprayed out from the central fire hole 4 towards the central axis of the burner. When the burner works, the central flame generated by the mixed gas flow sprayed from the central fire outlet hole 4 is firstly concentrated at the center of the pot bottom and then is diffused from the center of the pot bottom to the periphery of the pot, so that the heating of the center of the pot bottom is facilitated, meanwhile, as the flame is diffused outwards from the center, the contact path with the pot bottom is prolonged, and the heat efficiency is effectively improved.

An outer ring plate 40 of the integrated fire cover 1 is matched and covered on a furnace end outer ring 26 of the integrated furnace end 2, a middle ring plate 39 of the integrated fire cover 1 is matched and covered on a furnace end middle ring 25 of the integrated furnace end 2, an inner ring plate 38 of the integrated fire cover 1 is matched and covered on a furnace end inner ring 24 of the integrated furnace end 2, a cavity which is formed by the outer ring plate 40 of the integrated fire cover 1, a fire cover body 37 of the integrated fire cover 1, the middle ring plate 39 of the integrated fire cover 1, the furnace end outer ring 26 of the integrated furnace end 2, an upper partition plate part which is positioned between the furnace end outer ring 26 and the furnace end middle ring 25 and is in a horizontal state and the furnace end middle ring 25 of the integrated furnace end 2 is a main fire distribution cavity 9; an inner ring plate of the integrated fire cover, a fire cover body 37 of the integrated fire cover 1, a middle ring plate 39 of the integrated fire cover 1, a furnace end inner ring 24 of the integrated furnace end 2, an upper partition plate part which is positioned between the furnace end inner ring 24 and the furnace end middle ring 25 and is in a horizontal state, and a cavity which is surrounded by the furnace end middle ring 25 of the integrated furnace end 2 are used as a central fire distribution cavity 8.

The fire cover body 37 of the integrated fire cover 1 is provided with the flame connecting holes 41, the flame connecting holes 41 penetrate through the upper surface and the lower surface of the fire cover body 37, the outer ends of the flame connecting holes 41 are connected with the main fire outlet holes 5 of the integrated fire cover 1, and the inner ends of the flame connecting holes 41 extend to the outer peripheral side of the central fire outlet holes 4 of the integrated fire cover 1.

The central fire outlet hole 4 is arranged on the fire cover body 37 between the outer ring plate 40 and the middle ring plate 39, the main fire outlet hole 5 is arranged on the outer ring plate 40 of the integrated fire cover 1 (in actual manufacturing, the main fire outlet hole 5 can also be arranged on the fire cover body 37 between the outer ring plate 40 and the middle ring plate 39 of the integrated fire cover 1, or alternatively, the fire cover body 37 between the outer ring plate 40 and the middle ring plate 39 of the integrated fire cover 1 and the outer ring plate 40 of the integrated fire cover 1 can be provided with the main fire outlet hole 5, flame is transmitted between the main fire outlet hole 5 and the central fire outlet hole 4 through the flame connecting hole 41, flame of the main fire outlet hole 5 and flame of the central fire outlet hole 4 can not form intersection, the combustion efficiency is stable, and the improvement of the power are facilitated. the inner ring plate 38 of the integrated fire cover 1 is provided with the fire cover limiting groove 42, the furnace end inner ring 24 of the integrated furnace end 2 is fixed with the limiting protrusion 43 which is matched with the fire cover limiting groove 42, the limiting protrusion 43 extends into the fire cover limiting groove 42 and is used for limiting the installation direction of the integrated fire cover 1, so that the circumferential positioning of the integrated fire cover 1 on the integrated furnace end 2 is facilitated.

The completely upper air inlet burner also comprises a main fire equalizing plate 44 and a central fire equalizing plate 45, wherein a main fire equalizing hole 46 is formed in the main fire equalizing plate 44, a central fire equalizing hole 47 is formed in the central fire equalizing plate 45, a main fire equalizing plate mounting column 48 and a central fire equalizing plate mounting column 49 are fixed on the lower surface of the fire cover body 37 of the integrated fire cover 1, the main fire equalizing plate 44 is fixed on the main fire equalizing plate mounting column 48, and the central fire equalizing plate 46 is fixed on the central fire equalizing plate mounting column 49; the main fire equalizing plate 44 is located above the main fire mixing chamber 7, and the central fire equalizing plate 45 is located above the central fire mixing chamber 6.

The lower ends of the main fire equalizing plate mounting column 48 and the central fire equalizing plate mounting column 49 are both provided with mounting holes (not shown in the figure), the main fire equalizing plate 44 is provided with mounting holes 50, and the central fire equalizing plate 45 is also provided with mounting holes 51; the main fire equalizing plate 44 can be fixedly connected with the main fire equalizing plate mounting column 48 through a connecting piece (not shown in the figure) arranged in the lower end mounting hole of the main fire equalizing plate mounting column 48 and the mounting hole 50 of the main fire equalizing plate 44; the central fire uniforming plate 45 can be fixedly connected with the central fire uniforming plate mounting column 49 through connecting pieces (not shown in the figure) arranged in the lower end mounting hole of the central fire uniforming plate mounting column 49 and the mounting hole 51 of the central fire uniforming plate 45. The connecting member may be a screw or the like. The fixed connection mode of the central fire equalizing plate 45 and the central fire equalizing plate mounting column 49 and the fixed connection mode of the main fire equalizing plate 44 and the main fire equalizing plate mounting column 48 can also adopt other existing mature modes, such as riveting and the like, and detailed description is omitted here.

The cross-section of main fire hybrid chamber 7 is for falling trapezoidal to do benefit to and make the air current that flows into in the main fire hybrid chamber 7 from the end 12B of giving vent to anger of main fire ejector 12 most converge in the equal fire board 44 department of main fire, the cross-section is for falling trapezoidal main fire hybrid chamber 7 and the equal fire board 44 cooperation back of main fire, can be better with the mixed air current reposition of redundant personnel in the main fire hybrid chamber 7 to the main fire divide in the whole cavity of fire chamber 9. The cross-section of central fire hybrid chamber 6 is for falling trapezoidal to do benefit to and make the air current that flows into in the central fire hybrid chamber 6 from the end 11B of giving vent to anger of central fire ejector 11 most converge in central fire uniform fire board 45 department, the cross-section is for falling trapezoidal central fire hybrid chamber 6 and central fire uniform fire board 45 cooperation back, can be better with the mixed air current reposition of redundant personnel to central fire in the 6 intracavity of central fire hybrid chamber 8 in the whole cavity.

The plate thickness of the burner partition 10 is gradually reduced from the center of the burner partition 10 to the outer edge of the burner partition 10 to facilitate the liquid falling onto the burner partition 10 to flow out through the secondary air passage 34.

A water tray 52 is arranged between the integrated burner 2 and the burner support 3. Short support column mounting holes 53 and long support column mounting holes 54 are formed in the water tray 52, short support column mounting holes 55 and long support column mounting holes 56 are also formed in the upper surface of the combustor support 3, the lower ends of the short support columns 57 penetrate through the short support column mounting holes 53 in the water tray 52 and then extend into the short support column mounting holes 55 in the upper surface of the combustor support 3, and the lower ends of the long support columns 58 penetrate through the long support column mounting holes 54 in the water tray 52 and then extend into the long support column mounting holes 56 in the upper surface of the combustor support 3; the top surface of short support post 57 and the top surface of long support post 58 all contact with the lower surface of integrative furnace end 1, are favorable to reducing the installation screw quantity on water tray 52 surface like this to convenient cleaning promotes whole outward appearance effect simultaneously.

The outer end face of the main fire nozzle 14 and the main fire ejector 12 are both located inside the outer edge of the burner partition 10, so that liquid which is mistakenly operated or drips onto the burner partition 10 can be shunted onto the water tray 52, and interference on combustion stability is reduced.

The lower surface of the burner support 3 is fixed with a lower connecting column 59, the lower end of the lower connecting column 59 is provided with a connecting hole (not shown in the figure), the chassis (not shown in the figure) of the gas cooker or integrated cooker product (not shown in the figure) is also provided with a connecting hole (not shown in the figure), and the connecting hole at the lower end of the lower connecting column 59 is connected with the connecting hole on the chassis of the gas cooker or integrated cooker product through a connecting piece (not shown in the figure). The connecting member may be a bolt or the like.

The water tray 52 is provided with a nozzle mounting seat through hole 60, an ignition needle fixing frame through hole 61 and a thermocouple fixing frame through hole 62, the furnace end clapboard 10 is also provided with a nozzle mounting seat through hole 63, and the nozzle mounting seat 13 on the combustor support 3 sequentially penetrates through the nozzle mounting seat through hole 60 of the water tray 52 and the nozzle mounting seat through hole 63 of the furnace end clapboard 10 upwards. An ignition needle fixing frame through hole 64 and a thermocouple fixing frame through hole 65 are also formed in the furnace end partition plate 10; the upper end of the ignition needle fixing frame 18 sequentially penetrates through the ignition needle fixing frame through hole 61 of the water tray 52 and the ignition needle fixing frame through hole 64 of the furnace end partition plate 10 from bottom to top, and the upper end of the thermocouple fixing frame 19 sequentially penetrates through the thermocouple fixing frame through hole 62 of the water tray 52 and the thermocouple fixing frame through hole 65 of the furnace end partition plate 10 from bottom to top, so that the circumferential positioning of the integrated furnace end 2 is further realized.

The furnace end clapboard 10 is also provided with a central fire nozzle through hole 70, the central fire nozzle through hole 70 on the furnace end clapboard 10 is communicated with the nozzle mounting seat through hole 63 on the furnace end clapboard 10, so that the central fire nozzle 15 and the nozzle mounting seat 13 provided with the central fire nozzle 15 can conveniently penetrate through the furnace end clapboard 10 together. The central fire nozzle 15 is located above the main fire nozzle 14.

The upper surface of furnace end baffle 10 is transversely put in to main fire ejector 12, and the lower surface of furnace end baffle 10 is transversely put in to central fire ejector 11 to when reducing the combustor diameter, furthest's main fire ejector 12 of extension and central fire ejector 11's length promotes and draws the ejection coefficient, satisfies high-power burning demand, and red fire yellow flame scheduling problem can not appear for a long time in the burning.

The anterior segment of center fire nozzle 15 is equipped with the external screw thread, and the middle section of center fire nozzle 15 is equipped with air guide hole (not shown in the figure), and the back end of center fire nozzle 15 also is equipped with the external screw thread, and the anterior segment of center fire nozzle 15 and middle section cover have the inner wall to be equipped with internal screw thread center fire throttle cover 67, and it has center fire nozzle mounting hole (not shown in the figure) to open on the nozzle mount pad 13, and center fire nozzle 15 passes through the external screw thread of center fire nozzle 15 back end and installs on the center fire nozzle mounting hole of nozzle mount pad 13. Through rotation center fire air door cover 67, the coincidence area size of the bleed hole of adjustable center fire air door cover 67 and center fire nozzle 15, but the bleed hole of the center fire nozzle 15 that is not sheltered by center fire air door cover 67 can introduce the air admission center fire nozzle 15 in, so realize the regulation of the bleed hole intake air volume size of center fire nozzle 15 to make the combustor adaptability better, stability is higher.

The main fire nozzle 14 has the same structure as the center fire nozzle 15. Similarly, the front section of the main fire nozzle 14 is provided with external threads, the middle section of the main fire nozzle 14 is provided with an air introducing hole 68, the rear section of the main fire nozzle 14 is also provided with external threads, the front section and the middle section of the main fire nozzle 14 are sleeved with a main fire damper sleeve 69 with internal threads on the inner wall, a main fire nozzle mounting hole (not shown in the figure) is formed in the nozzle mounting seat 13, and the main fire nozzle 14 is mounted on the main fire nozzle mounting hole of the nozzle mounting seat 13 through the external threads at the rear section of the main fire nozzle 14. Through rotatory main fire air door cover 69, the coincident area size of adjustable main fire air door cover 69 and the bleed hole 68 of main fire nozzle 14, the bleed hole 68 of main fire nozzle 14 that is not sheltered by main fire air door cover 69 can introduce the air and get into main fire nozzle 14 in, so realize the adjustment of the bleed hole 68 of main fire nozzle 14 and introduce the air quantity size to make combustor adaptability better, stability is higher.

The inner surface of the first lower concave part of the upper clapboard 23 positioned between the furnace end inner ring 24 and the furnace end middle ring 25 is the inner bottom surface 28 of the central fire mixing cavity 6, and the inner surface of the second lower concave part of the upper clapboard 23 positioned between the furnace end outer ring 26 and the furnace end middle ring 25 is the inner bottom surface 30 of the main fire mixing cavity 7, so that the integrated fire cover 1 can be better covered on the integrated furnace end 2, and the main fire mixing cavity 7 and the central fire mixing cavity 6 can have enough inner cavity space, so that the air flow can be mixed more uniformly.

When the gas burner is in operation, the main fire gas inlet 16 and the central fire gas inlet 17 of the nozzle mounting base 13 are both externally connected with a gas pipeline (not shown in the figure), gas enters the main fire gas inlet 16 and the central fire gas inlet 17 through the gas pipeline, the gas entering the central fire gas inlet 16 is sprayed out from the central fire nozzle 15, and the gas entering the main fire gas inlet 17 is sprayed out from the main fire nozzle 14. The air near the air inlet end 12A of the main fire ejector 12 is called primary air required by the main fire ejector 12, the primary air required by the main fire ejector 12 is introduced from the lower side of the burner partition plate 10, the air near the air inlet end 11A of the central fire ejector 11 is called primary air required by the central fire ejector 11, and the primary air required by the central fire ejector 11 is introduced from the primary air passage 35 of the central fire above the burner partition plate 10. The gas ejected from the central fire nozzle 15 is mixed with the primary air introduced by the central fire ejector 11 from the central fire primary air passage 35 above the burner partition plate 10, enters the central fire ejector 11 through the air inlet end 11A of the central fire ejector 11, and is ejected from the air outlet end 11B of the central fire ejector 11. The gas ejected from the main fire nozzle 14 is mixed with primary air introduced from the lower part of the furnace end partition plate 10 by the main fire ejector 12, enters the main fire ejector 12 through the air inlet end 12A of the main fire ejector 12, and is ejected from the air outlet end 12B of the main fire ejector 12. The mixed air flow of the primary air and the fuel gas sprayed from the air outlet end 11B of the central fire ejector 11 flows into the central fire mixing cavity 6 to be mixed, then flows into the central fire branch fire cavity 8 after being evenly divided by the central fire even fire plate 45, is sprayed out from the central fire outlet hole 4 of the integrated fire cover 1, is ignited by the ignition needle 20 to be combusted, and the flame ignited by the ignition needle 20 is transmitted to the main fire outlet hole 5 under the action of the flame connecting hole 41. The mixed gas of the primary air and the fuel gas sprayed from the air outlet end 12B of the main fire ejector 12 flows into the main fire mixing cavity 7 to be mixed, then flows into the main fire branch fire cavity 9 after being equally divided by the main fire equal fire plate 44, and finally is sprayed from the main fire outlet holes 5 of the integrated fire cover 1, and the mixed gas flow sprayed from the main fire outlet holes 5 starts to burn under the action of the flame transmitted to the main fire outlet holes 5 through the flame connecting holes 41. The combustion promoting air required for combustion of the mixed air flow ejected from the main fire hole 5 of the integrated fire cover 1 and the mixed air flow ejected from the central fire hole 4 of the integrated fire cover 1 is called secondary air, and the secondary air mainly comprises air at the periphery of the integrated fire cover 1 and air in the two secondary air channels 34.

The central fire nozzle 15 is coaxial with the air inlet end 11A of the central fire ejector 11, the main fire nozzle 14 is coaxial with the air inlet end 12A of the main fire ejector 12, a gap exists between the outer end face of the main fire nozzle 14 and the outer end face of the air inlet end 12A of the main fire ejector 12, and a gap exists between the outer end face of the central fire nozzle 15 and the outer end face of the air inlet end 11A of the central fire ejector 11, so that primary air can be ejected into the central fire ejector 11 and the main fire ejector 12 conveniently.

The central fire ejector 11 is fixed on the upper surface of the furnace end partition plate 10, the main fire ejector 12 is fixed on the lower surface of the furnace end partition plate 10, the outer end face of the air inlet end 11A of the central fire ejector 11 and the outer end face of the air inlet end 12A of the main fire ejector 12 are both located on the inner side of the outer edge of the furnace end partition plate 10, under the action of the furnace end partition plate 10, primary air required by the central fire ejector 11 and primary air required by the main fire ejector 12 are isolated, primary air required by the main fire ejector 12 is introduced from the lower side of the furnace end partition plate 10, primary air required by the central fire ejector 11 is introduced from a central fire primary air channel 35 above the furnace end partition plate 10, and the effects of preventing gas robbing and interference are achieved, and the stability of combustion is improved. Adjacent secondary air channel 34 and central fire primary air channel 35 are separated by vertical partition plate 36, and secondary air in secondary air channel 34 and primary air required by central fire ejector 11 are isolated, so that the effects of preventing air robbery and interference are further played, and the combustion stability is improved.

Claims (10)

1. The integrated furnace end comprises a furnace end partition plate, a central fire ejector and a main fire ejector, the central fire ejector is fixed on the upper surface of the furnace end partition plate, the main fire ejector is fixed on the lower surface of the furnace end partition plate, the air outlet end of the central fire ejector is communicated with the central fire mixing cavity, the air outlet end of the main fire ejector is communicated with the main fire mixing cavity, the central fire mixing cavity is communicated with the central fire distributing cavity, and the main fire mixing cavity is communicated with the main fire distributing cavity; the central fire distributing cavity is communicated with the central fire outlet hole of the integrated fire cover, and the main fire distributing cavity is communicated with the main fire outlet hole of the integrated fire cover; the burner support is provided with a nozzle mounting seat, the nozzle mounting seat is provided with a main fire nozzle and a central fire nozzle, the main fire nozzle is positioned below the burner partition plate, the central fire nozzle is positioned above the burner partition plate, the outer end surface of the main fire nozzle and the outer end surface of the central fire nozzle are positioned on the inner side of the outer edge of the burner partition plate, the main fire nozzle is coaxial with the air inlet end of the main fire ejector, the central fire nozzle is coaxial with the air inlet end of the central fire ejector, the outer end surface of the air inlet end of the central fire ejector and the outer end surface of the air inlet end of the main fire ejector are positioned on the inner side of the outer edge of the burner partition plate, a gap is formed between the outer end surface of the main fire nozzle and the outer end surface of the air inlet end of the main fire ejector, a gap is formed between the outer end surface of the central fire nozzle and the outer end surface of the air inlet end of the central fire ejector, the nozzle mounting seat is also provided with a main fire air inlet and a central fire air inlet, and a main fire air inlet are communicated with the, a central fire air inlet of the nozzle mounting seat is communicated with the central fire nozzle through a central fire air flow channel in the nozzle mounting seat, and a main fire air inlet and the central fire air inlet of the nozzle mounting seat are both externally connected with a gas pipeline; an ignition needle fixing frame and a thermocouple fixing frame are arranged on the combustor support, an ignition needle mounting hole is formed in the ignition needle fixing frame, a thermocouple mounting hole is formed in the thermocouple fixing frame, the thermocouple is arranged in the thermocouple mounting hole, and the ignition needle is arranged in the ignition needle mounting hole; the center of the integrated fire cover is provided with a through hole, and the upper end of the ignition needle and the upper end of the thermocouple both extend into the central through hole of the integrated fire cover.

2. The fully upper air intake burner according to claim 1, wherein the integrated burner further comprises an upper partition plate, a burner inner ring, a burner outer ring and a burner intermediate ring, the upper partition plate is arranged above the burner partition plate, a through hole is formed in the center of the upper partition plate, the central through hole of the upper partition plate is communicated with the central through hole of the integrated fire cover, the burner inner ring is fixedly connected with the inner edge of the upper partition plate, the burner outer ring is fixedly connected with the outer edge of the upper partition plate, the burner inner ring, the burner intermediate ring and the burner outer ring are sequentially arranged from inside to outside, the burner inner ring, the burner intermediate ring and the burner outer ring are identical to a central shaft, and the lower surface of the burner intermediate;

one part of the upper partition plate positioned between the furnace end inner ring and the furnace end middle ring is in a horizontal state, the other part of the upper partition plate positioned between the furnace end inner ring and the furnace end middle ring is recessed downwards to form a first lower concave part of the upper partition plate, the inner surface of the first lower concave part of the upper partition plate positioned between the furnace end inner ring and the furnace end middle ring is the inner bottom surface of the central fire mixing cavity, and the lowest point of the inner bottom surface of the central fire mixing cavity is not higher than the lowest point of the outer end surface of the air outlet end of the central fire ejector; the two ends of the inner bottom surface of the central fire mixing cavity are arc-shaped surfaces, and the arc-shaped surfaces of the two ends of the inner bottom surface of the central fire mixing cavity are connected with the upper surface of the upper partition plate part which is positioned between the inner ring and the middle ring of the furnace end and is in a horizontal state; the outer edge of the inner bottom surface of the central fire mixing cavity is connected with the inner wall of the furnace end middle ring in a seamless mode, the inner edge of the inner bottom surface of the central fire mixing cavity is connected with the outer wall of the furnace end inner ring in a seamless mode, and the inner wall of the furnace end middle ring and the outer wall of the furnace end inner ring form two inner side surfaces of the central fire mixing cavity;

one part of the upper partition plate positioned between the outer ring of the furnace end and the middle ring of the furnace end is in a horizontal state, the other part of the upper partition plate positioned between the outer ring of the furnace end and the middle ring of the furnace end is recessed downwards to form a second lower recessed part of the upper partition plate, the inner surface of the second lower recessed part of the upper partition plate positioned between the outer ring of the furnace end and the middle ring of the furnace end is the inner bottom surface of the main fire mixing cavity, the inner bottom surface of the main fire mixing cavity extends out of the lower surface of the partition plate of the furnace end, and the lowest point of the inner bottom surface of the main fire mixing cavity is not higher than; the two ends of the inner bottom surface of the main fire mixing cavity are arc surfaces, and the arc surfaces at the two ends of the inner bottom surface of the main fire mixing cavity are connected with the upper surface of the upper partition plate part which is positioned between the outer ring of the furnace end and the middle ring of the furnace end and is in a horizontal state; the outer edge of the inner bottom surface of the main fire mixing cavity is connected with the inner wall of the outer ring of the furnace end in a seamless mode, the inner edge of the inner bottom surface of the main fire mixing cavity is connected with the outer wall of the middle ring of the furnace end in a seamless mode, and the inner wall of the outer ring of the furnace end and the outer wall of the middle ring of the furnace end form two inner side surfaces of the main fire mixing cavity;

the horizontal state part of the upper clapboard is formed by an upper clapboard part which is positioned between the furnace end inner ring and the furnace end middle ring and an upper clapboard part which is positioned between the furnace end outer ring and the furnace end middle ring and is in a horizontal state; the first lower concave part of the upper clapboard positioned between the inner ring of the furnace end and the middle ring of the furnace end, and the second lower concave part of the upper clapboard positioned between the outer ring of the furnace end and the middle ring of the furnace end jointly form the lower concave part of the upper clapboard.

3. The top full upwind burner of claim 2 wherein two secondary air passages and a central primary air passage are provided in the integrated burner; two vertical partition plates are arranged between the horizontal state part of the upper partition plate and the furnace end partition plate, the top surfaces of the two vertical partition plates are fixedly connected with the lower surface of the horizontal state part of the upper partition plate of the integrated furnace end, the bottom surfaces of the two vertical partition plates are fixedly connected with the upper surface of the furnace end partition plate of the integrated furnace end, the inner end surfaces of the two vertical partition plates are fixedly connected with the outer walls of the two sides of the air inlet end of the central fire ejector respectively, and the outer end surfaces of the two vertical partition plates extend to the position right below the outer ring of the furnace end; a cavity defined by the two vertical partition plates, the horizontal state part of the upper partition plate and the furnace end partition plate is a central fire primary air channel, the inner end of the central fire primary air channel is communicated with the air inlet end of the central fire ejector, and the outer end of the central fire primary air channel is communicated with the atmosphere; a cavity defined by the vertical partition plate, the lower concave part of the upper partition plate, the horizontal state part of the upper partition plate and the furnace end partition plate is a secondary air channel, and a cavity defined by the other vertical partition plate, the lower concave part of the upper partition plate, the horizontal state part of the upper partition plate and the furnace end partition plate is another secondary air channel; the central fire primary air channel is positioned between the two secondary air channels, and the adjacent secondary air channels and the central fire primary air channel are separated by corresponding vertical clapboards; the outer ends of the two secondary air channels are communicated with the atmosphere, and the inner ends of the two secondary air channels are communicated with the central through hole of the upper partition plate.

4. The top intake burner as claimed in claim 2 or 3, wherein the integrated fire cover comprises a fire cover body, an outer ring plate, an inner ring plate and a middle ring plate, a through hole is formed in the center of the fire cover body, the central through hole of the fire cover body is the central through hole of the integrated fire cover, the outer ring plate of the integrated fire cover is fixedly connected with the outer edge of the fire cover body, the inner ring plate of the integrated fire cover is fixedly connected with the inner edge of the fire cover body, and the middle ring plate of the integrated fire cover is fixed on the lower surface of the fire cover body;

the central fire outlet hole is arranged on the fire cover body positioned between the inner ring plate and the middle ring plate; or the central fire outlet hole is arranged on the inner ring plate; or the inner ring plate and the fire cover body between the inner ring plate and the middle ring plate are both provided with a central fire outlet hole;

the main fire outlet hole is arranged on the fire cover body between the outer ring plate and the middle ring plate of the integrated fire cover; or the main fire outlet hole is arranged on the outer ring plate; or the outer ring plate and the fire cover body between the outer ring plate and the middle ring plate are provided with main fire outlet holes;

the central axis of the central fire outlet hole is obliquely upwards intersected with the central axis of the integrated fire cover;

an outer ring plate of the integrated fire cover is matched and covered on a furnace end outer ring of the integrated furnace end, a middle ring plate of the integrated fire cover is matched and covered on a furnace end middle ring of the integrated furnace end, an inner ring plate of the integrated fire cover is matched and covered on a furnace end inner ring of the integrated furnace end, a cavity which is enclosed by the outer ring plate of the integrated fire cover, a fire cover body of the integrated fire cover, the middle ring plate of the integrated fire cover, the furnace end outer ring of the integrated furnace end, an upper partition plate part which is positioned between the furnace end outer ring and the furnace end middle ring and is in a horizontal state, and the furnace end middle ring of the integrated furnace end is a main fire distribution; the fire cover comprises an inner ring plate of the integrated fire cover, a fire cover body of the integrated fire cover, a middle ring plate of the integrated fire cover, a furnace end inner ring of the integrated furnace end, an upper partition plate part which is positioned between the furnace end inner ring and the furnace end middle ring and is in a horizontal state, and a cavity which is surrounded by the furnace end middle ring of the integrated furnace end is a central fire distribution cavity.

5. The top full intake air burner of claim 4, wherein the fire cover body of the integrated fire cover is provided with a flame connecting hole, the flame connecting hole penetrates through the upper and lower surfaces of the fire cover body, the outer end of the flame connecting hole is connected with the main fire outlet hole of the integrated fire cover, and the inner end of the flame connecting hole extends to the outer peripheral side of the central fire outlet hole of the integrated fire cover;

a fire cover limiting groove is formed in an inner ring plate of the integrated fire cover, a limiting bulge matched with the fire cover limiting groove is fixed on a furnace end inner ring of the integrated furnace end, and the limiting bulge extends into the fire cover limiting groove;

the plate thickness of the furnace end clapboard is gradually reduced from the center of the furnace end clapboard to the outer edge of the furnace end clapboard.

6. The full upper intake air burner according to claim 4, further comprising a main fire equalizing plate and a central fire equalizing plate, wherein the main fire equalizing plate is provided with a main fire equalizing hole, the central fire equalizing plate is provided with a central fire equalizing hole, a main fire equalizing plate mounting column and a central fire equalizing plate mounting column are fixed on the lower surface of the fire cover body of the integrated fire cover, the main fire equalizing plate is fixed on the main fire equalizing plate mounting column, and the central fire equalizing plate is fixed on the central fire equalizing plate mounting column; the main fire equalizing plate is positioned above the main fire mixing cavity, and the central fire equalizing plate is positioned above the central fire mixing cavity.

7. A full upwind burner according to claim 1 or 2, wherein the cross-section of the main fire mixing chamber and the cross-section of the central fire mixing chamber are both inverted trapezoids.

8. The fully upper intake burner according to claim 1 or 2, wherein a water tray is provided between the integrated burner and the burner support, the water tray is provided with short support post mounting holes and long support post mounting holes, the upper surface of the burner support is also provided with short support post mounting holes and long support post mounting holes, the lower end of the short support post passes through the short support post mounting hole on the water tray and then extends into the short support post mounting hole on the upper surface of the burner support, and the lower end of the long support post passes through the long support post mounting hole on the water tray and then extends into the long support post mounting hole on the upper surface of the burner support; the top surfaces of the short supporting columns and the long supporting columns are both contacted with the lower surface of the integrated furnace end;

the lower surface of the combustor support is fixed with a lower connecting column, the lower end of the lower connecting column is provided with a connecting hole, the chassis of the gas cooker or the integrated cooker product is also provided with a connecting hole, and the connecting hole at the lower end of the lower connecting column is connected with the connecting hole on the chassis of the gas cooker or the integrated cooker product through a connecting piece;

the water tray is provided with a nozzle mounting seat through hole, an ignition needle fixing frame through hole and a thermocouple fixing frame through hole, the furnace end clapboard is also provided with a nozzle mounting seat through hole, and a nozzle mounting seat on the combustor support upwards sequentially penetrates through the nozzle mounting seat through hole of the water tray and the nozzle mounting seat through hole of the furnace end clapboard; an ignition needle fixing frame through hole and a thermocouple fixing frame through hole are also formed in the furnace end partition plate; the upper end of the ignition needle fixing frame sequentially penetrates through the ignition needle fixing frame through hole of the water tray and the ignition needle fixing frame through hole of the furnace end partition plate from bottom to top, and the upper end of the thermocouple fixing frame sequentially penetrates through the thermocouple fixing frame through hole of the water tray and the thermocouple fixing frame through hole of the furnace end partition plate from bottom to top;

the furnace end clapboard is also provided with a central fire nozzle through hole, and the central fire nozzle through hole on the furnace end clapboard is communicated with a nozzle mounting seat through jack on the furnace end clapboard; the central fire nozzle is positioned above the main fire nozzle.

9. The full upper intake burner of claim 1 or 2, wherein the main fire injector is disposed laterally centrally on an upper surface of the burner partition, and the central fire injector is disposed laterally centrally on a lower surface of the burner partition.

10. The fully upper intake burner according to claim 1 or 2, wherein the front section of the central fire nozzle is provided with external threads, the middle section of the central fire nozzle is provided with an air guide hole, the rear section of the central fire nozzle is also provided with external threads, the front section and the middle section of the central fire nozzle are sleeved with a central fire damper sleeve with internal threads on the inner wall, a central fire nozzle mounting hole is formed in the nozzle mounting seat, and the central fire nozzle is mounted on the central fire nozzle mounting hole of the nozzle mounting seat through the external threads at the rear section of the central fire nozzle; the anterior segment of main fire nozzle is equipped with the external screw thread, and the middle section of main fire nozzle is equipped with the induced air hole, and the back end of main fire nozzle also is equipped with the external screw thread, and the anterior segment and the middle section cover of main fire nozzle have the inner wall to be equipped with internal screw thread main fire air door cover, and it has main fire nozzle mounting hole to open on the nozzle mount pad, and the external screw thread that main fire nozzle passes through main fire nozzle back end is installed on the main fire nozzle mounting hole of nozzle mount pad.

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