CN214791376U - Energy-gathering cover for stove and gas stove applying same - Google Patents

Abstract

The utility model relates to a kitchen is with gathering can cover and using the gas-cooker that has this kitchen with gathering can cover, this a gather that is used for the gas-cooker can cover, including the cover body, the central authorities of the cover body are formed with annular chamber, its characterized in that: the bottom periphery of the cover body or its adjacent bottom periphery have downwardly extending, be used for replenishing secondary air's tonifying qi room, the gas outlet of intercommunication annular chamber is seted up to the inside wall of tonifying qi room, the cover body then sets up the air inlet that supplies external air to flow in the tonifying qi room on lateral wall or diapire, compare with prior art, the utility model has the advantages of the utility model discloses a bottom periphery that gathers the cover or adjacent its bottom periphery have downwardly extending's tonifying qi room, the utility model also provides an use the above-mentioned gas-cooker that is used for the heat exchanger of gas-cooker, should be used for the bottom periphery of the lower floor's cover of gas-cooker or adjacent to have the interval between its bottom periphery has and the panel, secondary air forms independent supplementary passageway through the tonifying qi room like this, can make the interior outer loop burn more fully.

Description

Energy-gathering cover for stove and gas stove applying same

Technical Field

The utility model relates to a kitchen is with gathering can cover, the utility model discloses still relate to one kind and use the gas-cooker that has this kitchen with gathering can cover.

Background

In the actual use process of the existing gas stove, because a pot is placed on a pot support for heating, and a certain space interval is formed between the pot and a burner, a part of heat energy generated by gas combustion is escaped to the surrounding environment except for heating the pot, so that energy waste is caused; in order to solve the problems, some heat collecting and energy gathering structures appear in China in recent years, for example, the Chinese utility model ZL201721665758.2(CN207962760U) applied by the applicant, namely 'an energy gathering cover for a gas stove and a cooker applying the energy gathering cover for the gas stove', discloses an energy gathering cover with an annular cover body, and is characterized in that: the cover body is a double-layer structure consisting of an upper cover and a lower cover, the bottom of the lower cover is provided with a concave-convex structure to form a convex rib protruding downwards, an energy-gathering cover used for the gas stove is additionally arranged on the basis of the existing gas stove, the cover body is a double-layer structure consisting of the upper cover and the lower cover, the bottom of the lower cover is provided with a concave-convex structure to form a convex rib protruding downwards, the concave-convex structure is utilized to form a channel for separating the bottom of the lower cover into preheated secondary air, the gas combustion is promoted, the gas utilization rate is improved, the upper cover and the lower cover are connected in a closed mode, air in the lower cover does not flow, although the heat transfer of the heat of the upper cover to the lower cover is blocked, the lower cover is generally placed on a panel or a liquid containing disc of the gas stove, the heat gathered in the combustion process of a combustor is also easily transferred to the panel or the liquid containing disc, and the problem of temperature rise of the panel is easily caused, the heat collected in the upper cover cannot be sufficiently recovered and utilized.

In addition, since the primary air ratio of the conventional atmospheric burner is generally 0.4 to 0.7, the premixed air cannot reach the air amount required by the complete burner, and various factors are added, a certain secondary air ratio supplement is required, and the secondary air ratio supplement should be as sufficient as possible in order to reduce the emission of CO. At present, the mode that the cooking utensils combustor supplyed the air is diversified, generally has the side mode of admitting air and admitting air down, and the side air inlet mode is opened the side air intake at the lateral part of gas mixing chamber promptly, and the outside air carries out the secondary air through this side air intake and supplyes, and the air intake is opened down at the base seat promptly to the mode of admitting air down, and the air of cooking utensils below carries out the secondary air through this air intake down and supplyes. Although the side air intake mode has the advantages of small intake resistance and large intake air amount, the existing side air intake combustor still has the problems as follows: firstly, the inner ring area of the fire cover needs a large amount of secondary air, the secondary air is easily interfered by hot airflow after combustion and entrainment generated by an outer ring fire hole on the secondary air when flowing into the notch, the combustion is insufficient under the condition that the secondary air is not enough in flow, and the exhaust emission is high; secondly, the air supplement mode of the secondary air of the side air inlet of the existing burner is mainly aimed at the inner ring area, if the energy gathering ring is additionally arranged outside the burner, the supplement of the secondary air of the outer ring fire hole of the outer ring area is easily blocked, especially the supplement of the secondary air of the inner ring fire in the inner ring fire and the outer ring fire in the outer ring area, and further improvement is needed for improving the thermal efficiency of the inner ring and the outer ring area of the fire cover.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve provides one kind and can ensure to the proper amount kitchen of side direction secondary air that the combustor provided with gathering can cover to above-mentioned prior art current situation.

The second technical problem to be solved by the utility model is to provide a reduce decurrent heat conduction loss's kitchen with gathering can cover to above-mentioned prior art current situation.

The utility model discloses the third technical problem that will solve provides one kind to above-mentioned prior art current situation and uses above-mentioned kitchen with gathering can the cover, enables the secondary air rational distribution's through the side air simultaneously gas-cooker.

For solving the first technical problem, the utility model discloses a technical scheme be: this kitchen is with gathering can cover, including the cover body, the central authorities of the cover body are formed with the annular chamber, the cover body has three stabilizer blade at least, forms secondary tonifying qi passageway, its characterized in that between the adjacent stabilizer blade: the bottom periphery of the cover body or the periphery close to the bottom of the cover body is provided with a partition, and the partition divides the secondary air supply channel into at least two independent spaces in the axial up-down direction.

The partitioning member may be disposed in a manner that the air supply passage is partitioned into at least two independent spaces in the axial up-down direction, and preferably, the partitioning member includes a partition plate, the partition plate is a horizontal partition plate, and the partition plate is circumferentially provided with air inlets at intervals, the air inlets being communicated with the secondary air supply passage. It is of course also possible to divide at least two separate spaces in the radial left-right direction.

Furthermore, a first gap is formed between the upper surface of the partition board and the bottom wall of the cover body, a second gap is formed between the lower surface of the partition board and the support leg, and the first gap and the second gap are both communicated with the atmosphere.

In order to solve the second technical problem and reduce the heat conduction between the upper layer cover and the lower layer cover, preferably, the cover body includes the upper layer cover and the lower layer cover which are mutually combined, a cavity is formed between the upper layer cover and the lower layer cover, and a circumferential annular gap is formed at the junction of the inner periphery or/and the outer periphery of the upper layer cover and the lower layer cover and is used for communicating the cavity with the outside. Because the cavity among the prior art can obstruct upper cover downward transmission heat to lower cover for closed cavity, but the cavity of this scheme not only is open cavity, it takes place the flow of small-amplitude to enable the air in the cavity, can reduce the heat conduction that upper cover gathers in combustion process to lower cover, in order to satisfy that the annular seam has sufficient static air bed thickness to insulate against heat and avoid the convection heat transfer loss that the air flowed the production by a wide margin, the annular seam needs to satisfy and is not more than 2mm, both can reduce the area of contact between the two layers, reduce the contact heat transfer loss, can guarantee the small-amplitude flow of air between the two layers again.

In order to enable the energy concentrating cover for the kitchen range to play a role of storing overflowing liquid besides the energy concentrating function, the upper layer cover is preferably provided with a separating part protruding out of the upper surface of the upper layer cover, and the separating part separates the upper layer cover into an energy concentrating area on the inner side and a liquid storage area on the outer side. Wherein gather can make secondary air more be close to the fire hole root and remove the replenishment in the district, and the stock solution district can make and gather the function that the cover had the storage discharge, avoids the discharge to cause the jam to the fire hole of combustor.

In order to better achieve the energy concentrating effect of the energy concentrating cover, the energy concentrating region is preferably more sunken than the liquid storage region.

For solving the third technical problem, the utility model discloses still provide an use have above-mentioned kitchen with gathering gas-cooker of energy cover, including panel and combustor, the cover body sets up on the panel and surrounds the combustor, the combustor is including:

a base;

the inner ring fire cover is arranged on the base, and a central air mixing chamber is formed between the inner ring fire cover and the base;

the outer ring fire cover is also arranged on the base, is positioned at the periphery of the inner ring fire cover, and forms an outer ring gas mixing chamber with the base;

the outer fire holes are formed in the outer ring wall of the outer ring fire cover at intervals along the circumferential direction;

the method is characterized in that: the partition of the cover body is abutted against the outer wall of the outer ring fire cover, the first gap is communicated with the outer fire hole area of the outer ring gas mixing chamber, and the second gap is communicated with the outer wall area of the central gas mixing chamber.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a gather the bottom periphery of cover or be close to its bottom periphery and have the separator, the air is through the separation effect of this separator, form two independent tonifying qi passageways, force the reposition of redundant personnel with the secondary air of secondary tonifying qi passageway, make the interior outer loop homoenergetic fully burn, especially be fit for having the outer ring fire lid of two rings of fires, effectively avoid the inner ring secondary air surplus, and the not enough secondary air unreasonable distribution phenomenon of outer ring secondary air, can avoid secondary air's influence each other between inner ring and the outer loop through setting up of this separator, in order to improve gas combustion efficiency, the heat of gas mixing chamber can be recycled to the separator simultaneously, secondary air can be preheated, help improving the combustor thermal efficiency.

Drawings

Fig. 1 is a schematic structural view of an energy collecting cover for a stove in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of another angle of the energy collecting cover for the stove in embodiment 1 of the present invention;

FIG. 3 is a cross-sectional view of FIG. 1;

fig. 4 is a schematic structural view of an energy collecting cover for a stove, which is placed on a liquid containing plate and surrounds a burner in embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view at an angle of FIG. 4;

FIG. 6 is a cross-sectional view at another angle from FIG. 4;

fig. 7 is a schematic structural view of an energy collecting cover for a cooking range in embodiment 2 of the present invention;

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

FIG. 9 is a cross-sectional view at another angle of FIG. 7;

fig. 10 is a sectional view showing the structure of the energy collecting cover for the range according to embodiment 2 of the present invention, which is placed on the liquid containing tray and surrounds the burner.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1 to 6, the energy concentrating hood for a stove in this embodiment includes a hood body 1, an annular cavity 10 is formed in the center of the hood body 1, an air supply chamber 300 extending downward and used for supplying secondary air is provided at or near the bottom periphery of the hood body 1, an air outlet 3001 communicating with the annular cavity 10 is provided on the inner side wall of the air supply chamber 300, and an air inlet 3002 for external air to flow into the air supply chamber 300 is provided on the outer side wall or the bottom wall of the hood body 1. The energy concentrating cover has a downwardly extending air supplement chamber 300 at or near its bottom periphery, so that the annular chamber 10 is supplemented by external secondary air via the air supplement chamber 300,

specifically, the cover body 1 comprises an upper cover 11 and a lower cover 12 which are mutually folded, a cavity 13 is formed between the upper cover 11 and the lower cover 12, and the upper cover 11 and the lower cover 12 are provided with annular gaps along the circumferential direction at the inner periphery or/and the outer periphery for communicating the cavity 11 with the outside. The upper layer cover 11 is provided with an inner end edge 111 adjacent to the annular cavity 10, the lower layer cover 12 is provided with an inner end edge 121 adjacent to the annular cavity 10, the inner end edge 111 of the upper layer cover 11 extends downwards to form an inner flanging 1111, the inner flanging 1111 can at least partially shield the inner end edge 121, the lower end of the inner flanging 1111 and the inner end edge 121 of the lower layer cover 12 are provided with a first gap 4b, the first gap 4b forms an annular gap for communicating the cavity 13 with the outside, the bottom wall 3003 of the air supply chamber 300 is gradually inclined towards the inner flanging 1111 from bottom to top, a second gap is formed between the bottom wall 3003 of the air supply chamber 300 and the inner flanging 1111, and the second gap forms an air outlet 3002 of the air supply chamber 300. In this embodiment, the air inlet 3002 is formed in the bottom wall 3003 of the air replenishing chamber 300. Because the cavity 13 in the prior art is a closed cavity which can block the upper layer cover 11 from transferring heat downwards to the lower layer cover 12, but the cavity 13 in the scheme is not only an open cavity which can enable air in the cavity 13 to flow in a small range, can reduce the heat accumulated in the upper layer cover 11 in the combustion process and transfer the heat to the lower layer cover 12, and in order to meet the requirement that the annular seam has enough thickness of a static air layer for heat insulation and avoid the loss of convection heat transfer generated by large-amplitude flow of air, the annular seam needs to be not more than 2mm, so that the contact area between two layers can be reduced, the loss of contact heat transfer can be reduced, and the small-amplitude flow of air between two layers can be ensured, and therefore, on one hand, the radiation heat accumulated in the combustion process of the upper layer cover 11 can be transferred to the lower layer cover 12, and on the other hand, the radiation heat energy in the combustion process of the burner is transferred downwards to the air supplementing chamber 300 by the lower layer cover 12, the air introduced through the air inlet 3002 is preheated to improve the thermal efficiency of the burner, so as to prevent the radiant heat of the lower shroud 12 from being downwardly conducted to the panel or the liquid containing tray, thereby preventing the problem of temperature rise of the panel. In addition, the upper cover 11 has a partition portion 200 protruding from the upper surface thereof, and the partition portion 200 partitions the upper cover 11 into a power accumulating area 2001 on the inner side and a liquid storing area 2002 on the outer side. The energy concentrating zone 2001 sinks more than the reservoir zone 2002. Wherein the energy-gathering region 2001 can make the secondary air more close to the fire hole root for supplement, and the liquid storage region 2002 can make the energy-gathering cover have the function of storing the overflow liquid, and the blockage of the fire hole of the combustor caused by the overflow liquid is avoided. Besides the annular gap formed between the upper layer cover 11 and the lower layer cover 12 adjacent to the annular cavity 10 and communicating the outside with the cavity 13, an annular gap formed between the upper layer cover 11 and the lower layer cover 12 away from the annular cavity 10 and communicating the outside with the cavity 13 is also formed between the upper layer cover 11 and the lower layer cover 12 at the side away from the annular cavity 10, wherein the upper layer cover 11 has an outer end 112 away from the annular cavity 10, the lower layer cover 12 has an outer end edge 122 away from the annular cavity 10, an annular wall 1222 extends upwards from the top of the outer end edge 122 of the lower layer cover 12, and the outer end 112 of the upper layer cover 11 is turned downwards to form a flanging 1121, and the flanging 1121 can at least partially cover the annular wall 1222. Since annular slits communicating the outside and the cavity 13 are formed between the upper cover 11 and the lower cover 12 adjacent to the annular cavity 10 and far from the annular cavity 10, and the annular slits constitute air supply passages corresponding to the fire outlet areas of the outer fire holes 601, air can be preheated from the annular slits far from the annular cavity 10 to the annular slits near the annular cavity 10, so that the preheated air can be appropriately supplied to the fire outlet areas of the outer fire holes 601, and the outer flange 1121 can at least partially shield the annular wall 1222.

The embodiment also provides a gas stove applying the energy-gathering cover for the stove, which comprises a panel and a burner 3, wherein the cover body 1 is arranged on the panel and surrounds the burner 3, the burner 3 comprises a base 30 and an inner fire cover 400 arranged on the base 30, and a central gas mixing chamber 401 is formed between the inner fire cover 400 and the base 30; the outer ring fire cover 60 is also arranged on the base 30, is positioned at the periphery of the inner ring fire cover 400, and forms an outer ring air mixing chamber 608 with the base 30, wherein the outer ring wall 603 of the outer ring fire cover 60 is circumferentially provided with outer fire holes 601 at intervals, an air replenishing chamber 700 is formed between the central air mixing chamber 401 and the outer ring air mixing chamber 608, the base 30 is further circumferentially provided with a plurality of radial secondary air replenishing channels 800 at intervals for communicating the air replenishing chamber 700 with the outside, a gap is formed between the air replenishing chamber 300 arranged at the bottom periphery of the cover body 1 or adjacent to the bottom periphery thereof and the panel, the gap is communicated with the outer wall area of the central air mixing chamber 401 through the secondary air replenishing channels 800, the air outlet 3001 of the air replenishing chamber 300 is communicated with the outer fire hole 601 area of the outer ring air mixing chamber 608, the inner periphery of the bottom wall 3003 of the air replenishing chamber 300 is abutted with the outer wall of the outer ring air mixing chamber 608, thus, the air replenishing chamber 300 can also have the function of positioning the energy concentrating cover for the stove, since the air supply chamber 30 is located under the lower cover 12, on one hand, the secondary air can be pressed toward the panel or the liquid tray to prevent the excess air and improve the efficiency, the air supply path can refer to the dotted line of fig. 5, and on the other hand, the overflowing liquid can directly flow to the panel or the liquid tray through the air supply chamber 300 to prevent the overflowing liquid from flowing in, wherein the overflowing liquid path can refer to the hollow arrow of fig. 5, and wherein the air supply chamber 300 is used as an embodiment of the partition.

Example 2

The structure is basically the same as that of the embodiment 1, and the only difference is that: the partition 4 is a horizontal partition, which is provided with air inlets 4a communicated with the secondary air supply channel 800 at intervals along the circumferential direction, and the partition of the cover body 1 abuts against the outer wall of the outer ring fire cover 60, wherein a first gap 40 is provided between the upper surface of the partition and the bottom wall of the cover body 1, a second gap 41 is provided between the lower surface of the partition and the support leg 1a, the first gap 40 and the second gap 41 are both communicated with the atmosphere, the first gap 40 is communicated with the outer fire hole 601 region of the outer ring air mixing chamber 608, and the second gap 41 is communicated with the outer wall region of the central air mixing chamber 401, as shown in fig. 7-10.

Claims (7)

1. The utility model provides a kitchen is with gathering can cover, includes the cover body (1), the central authorities of the cover body (1) are formed with annular chamber (10), the cover body (1) has at least three stabilizer blade (1a), forms secondary tonifying qi passageway (800), its characterized in that between adjacent stabilizer blade (1 a): the bottom periphery of the cover body (1) or the periphery close to the bottom of the cover body is provided with a partition (4), and the secondary air supply channel (800) is divided into at least two independent spaces in the axial up-down direction by the partition (4).

2. The cooktop concentrator cap of claim 1, wherein: the separator (4) comprises a horizontal separator, and air inlets (4a) communicated with the secondary air supplementing channel (800) are formed in the horizontal separator at intervals along the circumferential direction.

3. The cooktop concentrator cap of claim 2, wherein: a first gap (40) is formed between the upper surface of the partition board and the bottom wall of the cover body (1), a second gap (41) is formed between the lower surface of the partition board and the supporting leg (1a), and the first gap (40) and the second gap (41) are communicated with the atmosphere.

4. The cooktop concentrator cap of claim 3, wherein: the cover body (1) comprises an upper layer cover (11) and a lower layer cover (12) which are mutually combined, a cavity (13) is formed between the upper layer cover (11) and the lower layer cover (12), and a circumferential annular gap is formed at the junction of the inner periphery or/and the outer periphery of the upper layer cover (11) and the lower layer cover (12) and is used for communicating the cavity (13) with the outside.

5. The cooktop concentrator cap of claim 4, wherein: the upper cover (11) is provided with a partition part (200) protruding out of the upper surface of the upper cover, and the partition part (200) divides the upper cover (11) into an energy collecting area (2001) positioned on the inner side and a liquid storage area (2002) positioned on the outer side.

6. The cooktop concentrator cap of claim 5, wherein: the energy concentrating region (2001) sinks more than the liquid storage region (2002).

7. A gas cooker applying the energy concentrating cover for cookers according to any one of claims 3 to 6, comprising a panel and a burner (3), wherein the cover body (1) is arranged on the panel and surrounds the burner (3), and the burner (3) comprises:

a base (30);

the inner ring fire cover (400) is arranged above the base (30) and forms a central gas mixing chamber (401) with the base (30);

the outer ring fire cover (60) is also arranged on the base (30), is positioned at the periphery of the inner ring fire cover (400), and forms an outer ring gas mixing chamber (608) with the base (30);

the outer fire holes (601) are formed in the outer ring wall (603) of the outer ring fire cover (60) at intervals along the circumferential direction;

the method is characterized in that: the partition of the cover body (1) is abutted against the outer wall of the outer ring fire cover (60), the first gap (40) is communicated with the outer fire hole (601) area of the outer ring gas mixing chamber (608), and the second gap (41) is communicated with the outer wall area of the central gas mixing chamber (401).

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