CN221222781U - Energy-collecting pan pot rack and gas cooker - Google Patents

Abstract

The utility model relates to the field of kitchen appliances, in particular to an energy-collecting disc pot rack and a gas stove. The energy-collecting disc pot frame comprises an energy-collecting disc body and a blast assembly, wherein the upper surface of the energy-collecting disc body is provided with high-temperature flue gas reburning areas distributed in an annular shape; a secondary air preheating cavity is formed in the energy collecting disc body, and a secondary air outlet communicated with the secondary air preheating cavity is arranged in the high-temperature flue gas reburning area; the blower assembly includes a blower connected to the secondary air inlet. Secondary air required by the high-temperature flue gas reburning can enter a secondary air preheating cavity for preheating, so that the temperature field of the high-temperature flue gas is enhanced, and the high-temperature flue gas reburning is more sufficient; the blast assembly can improve the secondary air supplementing quantity, promote the reaction between the high-temperature flue gas and the preheated secondary air, improve the heat efficiency and reduce the generation of waste gas.

Description

Energy-collecting pan pot rack and gas cooker

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to an energy-collecting disk pot rack and a gas cooker.

Background

Gas cookers are one of kitchen cooking appliances necessary for the daily life of a household. With the continuous development of society, gas cooker products are also being continuously updated, and in order to pursue higher heat efficiency, some manufacturers develop gas cookers with energy-collecting disc pot holders in the prior art, so that high-temperature smoke generated by combustion is collected in the energy-collecting disc, heat energy exchange between the high-temperature smoke and the pot bottom is enhanced, and the combustion heat efficiency is improved.

However, the existing pot rack with the energy collecting disc has no structure that a high-temperature flue gas re-combustion heating area and a secondary air supplementing inlet are arranged in front of a high-temperature flue gas discharge port, so that the high-temperature flue gas is insufficiently combusted due to no supplementing of secondary air at the high-temperature flue gas re-combustion heating area, and the problem that the content of CO in discharged flue gas is too high or even exceeds standard is caused; and the structure of the high-temperature flue gas re-combustion heating area and the secondary air supplementing inlet is arranged, but secondary air is not preheated, so that the temperature of the high-temperature flue gas re-combustion heating area is not high, the heat exchange effect of the high-temperature flue gas and the bottom of the pot is poor, the heat energy utilization rate is low, and the problem of low overall combustion heat efficiency is caused.

Disclosure of utility model

The utility model aims to provide an energy-collecting tray pot rack and a gas cooker, which can strengthen the temperature field of high-temperature flue gas and enable the high-temperature flue gas to be burnt more fully; the secondary air supplementing amount is improved, the reaction of the high-temperature flue gas and the preheated secondary air is promoted, the heat efficiency is improved, and the waste gas generation is reduced.

To achieve the purpose, the utility model adopts the following technical scheme:

an energy harvesting dish rack comprising:

The center of the energy collecting disc body is provided with a through hole; the upper surface of the energy collecting disc body is provided with an energy collecting area, the upper surface of the energy collecting disc body is provided with high-temperature flue gas reburning areas which are distributed in an annular mode in a downward concave mode, and the high-temperature flue gas reburning areas are close to the outer edges of the energy collecting areas; secondary air preheating cavities distributed around the through holes are formed in the energy collecting disc body, a secondary air inlet communicated with the secondary air preheating cavities is formed in the energy collecting disc body, and a secondary air outlet communicated with the secondary air preheating cavities is formed in the high-temperature flue gas reburning area;

The blast assembly comprises a blast blower, and an outlet of the blast blower is connected with the secondary air inlet.

As the preferred technical scheme of energy-gathering disk pot holder, the blast assembly further comprises a flow guide piece, the flow guide piece is arranged in the secondary air preheating cavity, a flow guide channel is formed in the flow guide piece, an air inlet and a plurality of air outlets are formed in the flow guide piece, the air inlet is communicated with the flow guide channel, and the air inlet is connected with the secondary air inlet.

As the preferred technical scheme of energy-gathering disk pot holder, the water conservancy diversion piece is annular, the water conservancy diversion passageway is annular too, the center of water conservancy diversion piece has the second through-hole, the second through-hole with first through-hole coaxial setting, a plurality of the air outlet is followed the circumferencial direction interval distribution of water conservancy diversion piece.

As the preferable technical scheme of the energy-collecting disk pot holder, the air outlet is provided with a circular through hole.

As the preferred technical scheme of the energy-collecting disk pot holder, the diameters of the air outlets are equal, and the air outlets are distributed at equal intervals along the circumferential direction of the flow guide piece.

As the preferable technical scheme of the energy-collecting disk pot frame, the diameters of the air outlets gradually increase from the air outlets corresponding to the air inlets to two sides, and the air outlets are distributed at equal intervals along the circumferential direction of the flow guide piece.

As the preferred technical scheme of the energy-collecting disk pot holder, the diameters of a plurality of air outlets are equal, and the distance between every two adjacent air outlets is decreased from the air outlet corresponding to the air inlet to two sides.

As the preferable technical scheme of the energy-gathering disk pot frame, the air outlet is provided with a reducing pipe, and the diameter of the reducing pipe is reduced along the air flow direction.

As the preferable technical scheme of the energy-collecting pan frame, the diameters of the inlets of the plurality of reducing pipes are equal, and the diameters of the outlets of the plurality of reducing pipes are reduced from the reducing pipes corresponding to the air inlets to two sides; the air outlets are distributed at equal intervals along the circumferential direction of the flow guiding piece.

As the preferred technical scheme of the energy-collecting pan frame, the diameters of inlets of the plurality of reducing pipes are gradually increased from the reducing pipes corresponding to the air inlets to two sides, and the diameters of outlets of the plurality of reducing pipes are equal; the air outlets are distributed at equal intervals along the circumferential direction of the flow guiding piece.

The gas cooker comprises a burner and the energy-collecting disc pot frame according to any scheme, wherein the energy-collecting disc pot frame is annularly arranged on the periphery of the burner.

The utility model has the beneficial effects that:

The energy-collecting tray pot rack provided by the utility model is provided with the high-temperature flue gas re-combustion area, the high-temperature flue gas can be re-combusted in the high-temperature flue gas re-combustion area, secondary air required by the high-temperature flue gas re-combustion enters the secondary air preheating cavity through the secondary air inlet, the secondary air is timely supplied to the high-temperature flue gas re-combustion area through the secondary air outlet after being preheated, the fully preheated secondary air participates in the high-temperature flue gas re-combustion, the temperature field of the high-temperature flue gas can be effectively enhanced, the heat exchange effect with the pot bottom is enhanced, the high-temperature flue gas re-combustion is more sufficient and complete, and the generation of CO waste gas is greatly reduced.

Further, the energy-collecting tray pot rack provided by the utility model further comprises a blast assembly, so that the secondary air supplementing amount can be improved, the reaction of high-temperature flue gas and preheated secondary air is further promoted, the heat exchange effect of the high-temperature flue gas and the pot bottom is enhanced, the heat efficiency is improved, meanwhile, the generation of waste gas is reduced, and the combustion working condition is optimized.

Drawings

FIG. 1 is a schematic diagram of a structure of an energy-collecting pan holder provided by an embodiment of the utility model;

FIG. 2 is a cross-sectional view of a gas cooker provided by an embodiment of the utility model;

FIG. 3 is a schematic view of a blower assembly according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic diagram of a blower assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a blower assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a blower assembly according to an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of FIG. 7;

Fig. 9 is a partial enlarged view at a in fig. 8.

In the figure:

10. An energy collecting disc body; 11. an upper tray body; 111. an inner peripheral wall; 112. a peripheral wall; 113. a bottom wall; 1131. a secondary air outlet; 12. a lower tray body; 121. a secondary air inlet; 101. a first through hole; 102. an energy gathering region; 103. a high temperature flue gas reburning zone; 104. secondary air preheating chamber; 105. a heat preservation cavity;

20. A support; 30. a footing;

40. A blower assembly; 41. a flow guide; 411. a diversion channel; 412. an air inlet; 413. an air outlet; 42. a blower;

50. A burner.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

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

As shown in fig. 1 and 2, the present utility model provides a gas cooker including a burner 50 and an energy collecting tray pot frame which is annularly provided at the outer circumference of the burner 50 and can support a cooker above the burner 50.

The burner 50 includes a burner body, a nozzle, an inner annular flame cover, and an outer annular flame cover. The burner main body is internally provided with a mixing cavity which is provided with an air inlet, the nozzle can spray fuel gas into the air inlet, and because the injection speed of the fuel gas is high, the pressure of the fuel gas in the air inlet is smaller than the outside atmospheric pressure, a part of outside air (hereinafter referred to as primary air) enters the air inlet, and the fuel gas and the primary air can be mixed once in the mixing cavity. The outer ring fire cover and the inner ring fire cover are both arranged on the burner main body in a covering manner, the mixing cavity is respectively communicated with the inner cavity of the inner ring fire cover and the inner cavity of the outer ring fire cover, and a plurality of fire holes are formed in the inner ring fire cover and the outer ring fire cover. When the burner 50 works, the mixed gas in the mixing cavity is discharged from the corresponding fire holes after entering the outer ring fire cover and the inner ring fire cover, and the discharged mixed gas and the surrounding air (hereinafter referred to as secondary air) are secondarily mixed and combusted, so that high-temperature flue gas is formed, and the high-temperature flue gas can heat the cookware placed on the energy-collecting tray cooker frame.

The energy collecting disc pot frame comprises an energy collecting disc body 10 and a supporting piece 20, a first through hole 101 is formed in the center of the energy collecting disc body 10, the upper end of the combustor 50 is located in the first through hole 101, namely, the energy collecting disc body 10 is annularly arranged on the periphery of the combustor 50, and the supporting piece 20 is arranged on the upper surface of the energy collecting disc body 10 and used for supporting cookware. The highest point of the support member 20 is higher than the highest point of the upper surface of the energy-collecting tray body 10, and when the pot is placed on the support member 20, an air passing space and an exhaust channel are formed between the bottom of the pot and the upper surface of the energy-collecting tray body 10, and the air passing space can enable high-temperature flue gas to flow, so that heat exchange is carried out between the bottom of the pot and the bottom of the pot. The exhaust passage can discharge high-temperature flue gas, so that the inner side area of the energy collecting disc body 10 and the area between the energy collecting disc body 10 and the burner 50 are in a negative pressure state, and further, secondary air can be continuously fed into the fire hole. Optionally, in this embodiment, the number of the supporting members 20 is four, so as to ensure stable support for the cookware. In other embodiments, the number of the supporting members 20 may be three, five or more, which is not particularly limited herein.

The bottom of the energy collecting disc body 10 is provided with a foot 30, when the foot 30 is placed on a supporting plane, a first air gap is formed between the bottom wall 113 of the energy collecting disc body 10 and the supporting plane, and a second air gap is formed between the side wall of the first through hole 101 and the outer ring fire cover. When the burner 50 works, surrounding secondary air can sequentially pass through the first gas passing gap and the second gas passing gap to reach the fire hole of the outer ring fire cover, so that secondary mixing is carried out on the secondary air and the mixed gas exhausted from the fire hole, the combustion efficiency of fuel gas is improved, and high-temperature flue gas generated by combustion can be accumulated on the upper side of the energy collecting disc body 10. That is, the energy collecting plate body 10 can separate the low-temperature secondary air required by the burner 50 and the high-temperature flue gas generated by the combustion of the burner 50 up and down, so that the high-temperature flue gas is collected, and the heat loss is reduced.

The upper surface of the energy collecting disc body 10 is provided with an energy collecting area 102, and the energy collecting area 102 is used for collecting combustion heat energy so as to enhance the heat exchange strength of the combustion heat energy to the cooker, reduce heat energy loss and improve combustion heat efficiency.

The upper surface of the energy collecting disc body 10 is provided with high-temperature flue gas reburning areas 103 in annular distribution in a downward concave manner, and the high-temperature flue gas reburning areas 103 are close to the outer edge of the energy collecting area 102; the energy collecting disc body 10 is internally provided with secondary air preheating cavities 104 distributed around the first through holes 101, the energy collecting disc body 10 is provided with secondary air inlets 121 communicated with the secondary air preheating cavities 104, the high-temperature flue gas reburning area 103 is internally provided with a plurality of secondary air outlets 1131 communicated with the secondary air preheating cavities 104, and the plurality of secondary air outlets 1131 are distributed at intervals along the circumferential direction of the high-temperature flue gas reburning area 103. The high-temperature flue gas can be combusted again in the high-temperature flue gas reburning area 103, secondary air required by the high-temperature flue gas reburning enters the secondary air preheating cavity 104 through the secondary air inlet 121, secondary air is preheated and then timely supplied to the high-temperature flue gas reburning area 103 through the secondary air outlet 1131, the secondary air after full preheating participates in the high-temperature flue gas reburning, the temperature field of the high-temperature flue gas can be effectively enhanced, the heat exchange effect with the bottom of a boiler is enhanced, the high-temperature flue gas reburning is more full and complete, and the generation of CO waste gas is greatly reduced.

The energy collecting disc body 10 is also internally provided with heat preservation cavities 105 distributed around the high-temperature flue gas reburning area 103, and the heat preservation cavities 105 are communicated with the secondary air preheating cavity 104. The heat preservation cavity 105 can perform heat preservation on the high-temperature flue gas reburning area 103, and the energy gathering effect is enhanced, so that the overall combustion heat efficiency is further improved.

Specifically, the energy-collecting tray body 10 includes an upper tray body 11 and a lower tray body 12, the upper tray body 11 is disposed above the lower tray body 12, an inner edge of the upper tray body 11 is in fit connection with an inner edge of the lower tray body 12, the upper tray body 11 can be connected by adopting a welding process, a flanging or riveting process can be adopted, an outer edge of the upper tray body 11 is in fit connection with an outer edge of the lower tray body 12, the upper tray body 11 and the lower tray body 12 can also be connected by adopting a welding process, the upper tray body 11 and the lower tray body 12 are provided with coaxial inner holes so as to form the first through hole 101, a secondary air preheating cavity 104 and a heat preservation cavity 105 are formed between the upper tray body 11 and the lower tray body 12, the heat preservation cavity 105 is located at an upper end of the secondary air preheating cavity 104 close to the outer edges of the upper tray body 11 and the lower tray body 12, and the heat preservation cavity 105 is in an inverted U shape in section.

The inner edge of the upper tray 11 is lower than the outer edge, and the upper tray 11 forms an energy accumulating region 102 between the inner edge and the outer edge. The upper tray 11 forms a high-temperature flue gas reburning area 103 near the outer edge, and the high-temperature flue gas reburning area 103 is formed by enclosing an inner peripheral wall 111, an outer peripheral wall 112 surrounding the inner peripheral wall 111 and a bottom wall 113 connected between the bottom end of the inner peripheral wall 111 and the bottom end of the outer peripheral wall 112, wherein the top end of the inner peripheral wall 111 is higher than the bottom wall 113 and the lowest point of the energy collecting area 102 and lower than the top end of the outer peripheral wall 112. The peripheral wall 112 is an upwardly extending annular enclosure. The structure can block high-temperature flue gas, and is beneficial to guiding the high-temperature flue gas to the bottom of the pot, and reduces the outward diffusion of the high-temperature flue gas, so that the residence time of the high-temperature flue gas in the energy collecting tray is prolonged, the heat exchange time of the high-temperature flue gas and the bottom of the pot is prolonged, the heat exchange effect of the high-temperature flue gas and the bottom of the pot is enhanced, the heat energy loss is reduced, and the combustion heat efficiency is improved. The secondary air outlets 1131 are disposed on the bottom wall 113, the number of the secondary air outlets 1131 is plural, the secondary air outlets 1131 are distributed at intervals along the circumferential direction of the bottom wall 113, and the secondary air outlets 1131 are supply ports for supplying the secondary air in the secondary air preheating chamber 104 with the high-temperature flue gas re-combustion area 103.

The lower disc body 12 is in an annular concave disc shape as a whole, and a secondary air inlet 121 is formed in the bottom of the lower disc body 12, and the secondary air inlet 121 is an inlet for secondary air to enter the secondary air preheating cavity 104. The bottom feet 30 are formed by the concave bottom surface of the lower disc body 12, the bottom feet 30 are in a hollow state, the volume of the secondary air preheating cavity 104 is increased, the entering capacity of secondary air is increased, and the preheating effect of the secondary air preheating cavity 104 can be effectively improved. Preferably, the bottom surface of the footing 30 is provided with a heat insulation pad, and the heat insulation pad is a non-metal pad, can be made of materials such as temperature-resistant silicon rubber and fluororubber, has relatively low heat conductivity coefficient, can reduce heat conduction on the energy collecting disc body 10 to a kitchen range panel, ensures that the temperature in the secondary air preheating cavity 104 is relatively kept higher, is favorable for the preheating effect of secondary air, and improves the heat energy utilization rate.

In the use process of the gas cooker provided by the embodiment, the high-temperature flue gas exchanges heat with the bottom of the cooker in the radial outward flowing process in the energy collecting disc, as the high-temperature flue gas reburning area 103 is arranged on the upper surface of the upper disc body 11 in the radial direction of the outer edge, and the peripheral wall 112 of the annular enclosing wall extending upwards is arranged on the outer edge, when the high-temperature flue gas approaches the high-temperature flue gas reburning area 103, the flowing speed of the high-temperature flue gas is slowed down, the effect of slowing down the overall flowing speed of the high-temperature flue gas in the energy collecting disc body can be achieved, the heat exchange time with the bottom of the cooker is prolonged, and the high-temperature flue gas can fully exchange heat with the bottom of the cooker; at this time, secondary air required by high-temperature flue gas reburning in the high-temperature flue gas reburning area 103 enters the secondary air preheating cavity 104 through the secondary air inlet 121 at the bottom of the lower disc body 12, and is timely supplied to the high-temperature flue gas reburning area 103 through the secondary air outlet 1131 after being preheated, and the fully preheated secondary air participates in the high-temperature flue gas reburning, so that the temperature field of the high-temperature flue gas can be effectively enhanced, the heat exchange effect with the bottom of the boiler can be enhanced, the high-temperature flue gas reburning can be more complete and more sufficient, the generation of CO waste gas is greatly reduced, the heat exchange and emission of the high-temperature flue gas to the boiler are balanced, and the whole combustion working condition is realized to achieve the best effect; meanwhile, the high-temperature flue gas is favorably led to the bottom of the pot for heating, the impact strength of the high-temperature flue gas on the bottom of the pot is enhanced, the heat energy of the high-temperature flue gas for combustion is more effectively utilized, the heat energy loss is reduced, and the overall combustion heat efficiency is improved; in addition, the heat preservation cavity 105 which is in an inverted U shape and is formed at the upper end of the outer edge of the secondary air preheating cavity 104 has an effective heat preservation effect on the high-temperature flue gas reburning area 103, and the energy gathering effect is enhanced, so that the overall combustion heat efficiency is further improved.

In this embodiment, the energy-collecting dish rack further includes a blower assembly 40, the blower assembly 40 includes a guide member 41 and a blower 42, the guide member 41 is disposed in the secondary air preheating chamber 104 and can be fixed by welding, locking, etc., the shape of the guide member 41 is preferably annular, the center of the guide member 41 has a second through hole, the second through hole and the first through hole 101 are coaxially disposed, an annular guide channel 411 is formed in the guide member 41, an air inlet 412 and a plurality of air outlets 413 are disposed on the guide member 41, the air inlet 412 is connected with the secondary air inlet 121, and the plurality of air outlets 413 are distributed at intervals along the circumferential direction of the guide member 41; the blower 42 is disposed outside the energy collecting disc body 10, and an outlet of the blower 42 is connected to the secondary air inlet 121. The air passing through the blower 42 enters the diversion channel 411 through the secondary air inlet 121 and the air inlet 412, flows in the diversion channel 411, is preheated and uniformly distributed around, further flows into the secondary air preheating cavity 104 through the air outlet 413 to be continuously preheated, and the fully preheated secondary air is timely supplied into the high-temperature flue gas reburning area 103 through the secondary air outlet 1131 to participate in the high-temperature flue gas reburning. Through setting up blast assembly 40, can make the secondary air evenly distributed in gathering can the pan body 10, simultaneously to secondary air preheat fully, through each secondary air export 1131 supplement to the high temperature flue gas in the area 103 of re-burning, make everywhere high temperature flue gas homoenergetic react with preheated secondary air, further improve thermal efficiency, reduce waste gas production.

In some embodiments, as shown in fig. 3 to 6, the air outlet 413 is provided as a circular through hole 101.

Flow rate of gas through the gas outlet m=gas flow velocity v×gas outlet area a.

As an alternative, referring to fig. 3 and 4, the diameters of the plurality of air outlets 413 are equal, and the plurality of air outlets 413 are equally spaced along the circumferential direction of the flow guide 41.

As an alternative, referring to fig. 5, the plurality of air outlets 413 are equally spaced along the circumferential direction of the air guide 41, and the diameters of the plurality of air outlets 413 are increased from the air outlet 413 corresponding to the air inlet 412 to both sides, that is, the diameter of the air outlet 413 corresponding to the air inlet 412 is the smallest, and the diameter of the air outlet 413 corresponding to the opposite side of the air inlet 412 is the largest. The velocity v of the air blown by the blower 42 gradually decreases when the air flows in the diversion channel 411, and the area a of the air outlet 413 gradually increases along the air flow direction, so that the secondary air flow m at each air outlet 413 is approximately the same, and the uniformity of the air distribution in the secondary air preheating chamber 104 is further improved.

As an alternative, referring to fig. 6, the diameters of the plurality of air outlets 413 are equal, and the distance between two adjacent air outlets 413 decreases from the air outlet 413 corresponding to the air inlet 412 to two sides, that is, the distance between the air outlet 413 corresponding to the air inlet 412 and the air outlet 413 on two adjacent sides is the largest, and the distance between the air outlet 413 corresponding to the opposite side of the air inlet 412 and the air outlet 413 on two adjacent sides is the smallest. When the air blown by the blower 42 flows in the diversion channel 411, the speed v gradually decreases, the distance between the air outlets 413 in the air flow direction gradually decreases, and the total area A of the air outlets 413 in the same length area gradually increases, so that the secondary air flow m in each length area is approximately the same, and the uniformity of air distribution in the secondary air preheating cavity 104 is further improved.

In some embodiments, as shown in fig. 7 to 9, the air outlets 413 are all provided with a reducer, and the diameter of the reducer decreases along the air flow direction. This structural arrangement allows for an acceleration of the secondary air as it passes through the air outlet 413, thereby increasing the velocity of the secondary air flowing in the secondary air preheating chamber 104, so that the secondary air can be thoroughly mixed with the flue gas when flowing into the high temperature flue gas reburning zone 103, increasing the degree of reaction, further increasing the thermal efficiency, and reducing the generation of exhaust gas.

Airflow velocity at the outlet of the reducer v2=inlet airflow velocity v1×inlet area A1/outlet area A2.

As an alternative, the plurality of air outlets 413 are distributed at equal intervals along the circumferential direction of the flow guiding member 41, the diameters of the inlets of the plurality of reducing pipes are equal, the diameters of the outlets of the plurality of reducing pipes decrease from the reducing pipe corresponding to the air inlet 412 to two sides, that is, the diameter of the outlet of the reducing pipe corresponding to the air inlet 412 is the largest, and the diameter of the outlet of the reducing pipe corresponding to the opposite side of the air inlet 412 is the smallest. The speed v1 of the air blown by the blower 42 gradually decreases when the air flows in the diversion channel 411, the inlet area A1 of the reducing pipe is kept unchanged, the outlet area A2 gradually decreases along the air flow direction, so that the air flow speed v2 of the outlets of the reducing pipes is approximately the same, the consistency of the secondary air speed is better, the uniformity of mixing with the flue gas in the high-temperature flue gas reburning area 103 is better, the thermal efficiency is improved, and the generation of the flue gas is reduced.

As an alternative, the plurality of air outlets 413 are distributed at equal intervals along the circumferential direction of the flow guiding member 41, and the inlet diameters of the plurality of reducing pipes are increased from the reducing pipe corresponding to the air inlet 412 to two sides, that is, the inlet diameter of the reducing pipe corresponding to the air inlet 412 is the smallest, and the inlet diameter of the reducing pipe corresponding to the opposite side of the air inlet 412 is the largest; the diameters of the outlets of the plurality of reducers are equal. The speed v1 of the air blown by the blower 42 gradually decreases when the air flows in the diversion channel 411, the inlet area A1 of the reducer gradually increases along the air flow direction, and the outlet area A2 is kept unchanged, so that the air flow speed v2 of the outlets of the reducers is approximately the same, the consistency of the secondary air speed is better, the uniformity of mixing with the flue gas in the high-temperature flue gas reburning area 103 is better, the thermal efficiency is improved, and the generation of the flue gas is reduced.

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

Claims (11)

1. The energy-gathering dish pot rack is characterized by comprising:

The energy-collecting disc comprises an energy-collecting disc body (10), wherein a first through hole (101) is formed in the center of the energy-collecting disc body; an energy collecting area (102) is formed on the upper surface of the energy collecting disc body (10), a high-temperature flue gas reburning area (103) which is distributed in an annular shape is concavely arranged on the upper surface of the energy collecting disc body (10), and the high-temperature flue gas reburning area (103) is close to the outer edge of the energy collecting area (102); secondary air preheating cavities (104) distributed around the first through holes (101) are formed in the energy collecting disc body (10), a secondary air inlet (121) communicated with the secondary air preheating cavities (104) is formed in the energy collecting disc body (10), and a secondary air outlet (1131) communicated with the secondary air preheating cavities (104) is formed in the high-temperature flue gas reburning area (103);

A blower assembly (40) comprising a blower (42), an outlet of the blower (42) being connected to the secondary air inlet (121).

2. The energy-gathering disk pan holder as claimed in claim 1, wherein the blast assembly (40) further comprises a flow guiding member (41), the flow guiding member (41) is arranged in the secondary air preheating cavity (104), a flow guiding channel (411) is formed in the flow guiding member (41), an air inlet (412) and a plurality of air outlets (413) which are communicated with the flow guiding channel (411) are arranged on the flow guiding member (41), and the air inlet (412) is connected with the secondary air inlet (121).

3. Energy-gathering disk pot holder as claimed in claim 2, characterized in that the flow guiding member (41) is annular, the flow guiding channel (411) is also annular, the center of the flow guiding member (41) is provided with a second through hole, the second through hole is coaxially arranged with the first through hole (101), and a plurality of air outlets (413) are distributed at intervals along the circumferential direction of the flow guiding member (41).

4. A dish rack according to claim 3, characterized in that the air outlet (413) is provided as a circular through hole.

5. The energy-gathering disk pan frame as claimed in claim 4 wherein the diameters of the air outlets (413) are equal, and the air outlets (413) are equally spaced along the circumferential direction of the deflector (41).

6. The energy-collecting dish rack as claimed in claim 4, wherein the diameters of the air outlets (413) are increased from the air outlet (413) corresponding to the air inlet (412) to two sides, and the air outlets (413) are distributed at equal intervals along the circumferential direction of the flow guiding member (41).

7. The energy-gathering disk pan frame as claimed in claim 4 wherein the diameters of the air outlets (413) are equal, and the distance between two adjacent air outlets (413) decreases from the air outlet (413) corresponding to the air inlet (412) to two sides.

8. A dish rack according to claim 3, characterized in that the outlet (413) is provided as a reducer, the diameter of which decreases in the direction of air flow.

9. The energy harvesting pan rack of claim 8, wherein the inlet diameters of the plurality of reducers are equal, and the outlet diameters of the plurality of reducers decrease from the reducer corresponding to the air inlet (412) to both sides; the air outlets (413) are distributed at equal intervals along the circumferential direction of the flow guiding piece (41).

10. The energy harvesting pan rack of claim 8, wherein the inlet diameters of the plurality of reducers increase from the reducer corresponding to the air inlet (412) to both sides, and the outlet diameters of the plurality of reducers are equal; the air outlets (413) are distributed at equal intervals along the circumferential direction of the flow guiding piece (41).

11. Gas cooker, characterized in that it comprises a burner (50) and a energy-gathering disk pot holder according to any one of claims 1-10, said energy-gathering disk pot holder being annularly arranged on the periphery of said burner (50).