CN110887076A - Energy-gathering cover for stove and gas stove applying same - Google Patents

Abstract

The invention relates to an energy-gathering cover for a stove and a gas stove applying the energy-gathering cover, wherein the periphery of the top of a cover body is provided with a notch for inserting and matching pot support legs, the roots of the pot support legs inserted and matched in the notch are connected through an annular ring, a secondary air channel for connecting the outside and a central hole is formed by the adjacent pot support legs and the annular ring together, and the bottom of the cover body is provided with an adjusting ring which can vertically move relative to the bottom of the cover body, so that the position of the adjusting ring in the corresponding secondary air channel is changed. The burner is in a stable and good combustion state.

Description

Energy-gathering cover for stove and gas stove applying same

Technical Field

The invention belongs to the technical field of gas cookers, and relates to a kitchen energy-gathering cover and a gas cooker using the kitchen energy-gathering 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, the heat energy generated by gas combustion is used for heating the pot, and a considerable part of the heat energy is dissipated to the surrounding environment, so that energy waste is caused; in order to solve the above problems, in recent years, there have been some heat collecting and energy concentrating apparatuses in China, such as "an energy concentrating ring for a gas cooker and a gas cooker having the same" disclosed in chinese patent CN203404823U, and "an energy concentrating gas cooker" disclosed in chinese patent CN204042984U, the gas cooker also has an energy concentrating pan support, the energy concentrating ring structure can reduce the consumption of heat energy to a certain extent, improve the thermal efficiency of a burner, and can separate smoke from a secondary air supplement channel, for this reason, the energy concentrating ring is generally provided with a secondary air supplement channel for supplementing secondary air, such as "an energy concentrating ring for a gas cooker and a gas cooker having the same" disclosed in chinese patent ZL201320460471.1, which includes a first reflecting ring and a second reflecting ring that effectively increase the whole reflection and energy concentrating area of the energy concentrating ring, an air supplement channel is provided between the upper end of the first reflecting ring and the lower end of the second reflecting ring, the problem of insufficient air supplement in the gas combustion process can be solved by arranging the air supplement channel, in order to reduce CO emission, secondary air supplement is sufficient as far as possible and is often excessive, and the excessive secondary air supplement can take away a large part of heat energy generated by gas combustion; the energy gathering effect is realized by adding the energy gathering cover, and meanwhile, the mode of a smoke outlet (the height of the smoke outlet refers to the distance from the highest plane of the edge of the energy gathering cover to the bottom of a boiler, namely the effective height of the discharged smoke) can be reduced, if the height of the smoke outlet of the existing energy gathering cover is 10mm, the discharged smoke and heat are more, if the height of the smoke outlet is reduced to 6mm, the smoke cannot be smoothly discharged, the discharged smoke is correspondingly reduced, the smoke is gathered in the inner space from the bottom of the boiler to the energy gathering cover, so that the secondary air supplementary channel supplements secondary air resistance to be increased, the supplement cannot be carried out, the combustion is incomplete, the heat efficiency is reduced, and toxic and harmful gases such as carbon monoxide and the like can be generated; however, the secondary air supplement channel is too large, the secondary air is sucked more, and the heat taken away by the exhausted smoke is increased, so that the heat efficiency is low; the secondary air supplement channel is too small, and incomplete fuel gas and over-standard smoke emission are inevitably caused by insufficient secondary air supplement amount. In order to have good performance on efficiency and smoke emission of the gas stove under different user use environments, namely, on the premise of reducing a smoke outlet, secondary air with proper quantity can be supplemented, so that the combustion working condition is greatly influenced.

Disclosure of Invention

The invention aims to solve the technical problem of providing the energy-gathering cover for the stove, which can effectively adjust the air output of the air outlet of the secondary air supply channel and has strong adaptability, aiming at the current technical situation.

Another technical problem to be solved by the present invention is to provide a gas cooker with the energy collecting cover for cooker in view of the above prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: this kitchen is with gathering can cover, this cover body are the ring dish form that has the central hole, the breach that supplies the pot stabilizer blade to insert to join in marriage is seted up to the top periphery of the cover body, inserts to join in marriage the root of each pot stabilizer blade of breach is connected through the annular ring, enclose with the annular ring jointly between the adjacent pot stabilizer blade communicate external with the secondary air passageway in central hole, be provided with on the bottom of the cover body can be relative the cover body bottom is at the regulation circle of vertical upward movement to change the position of regulation circle in corresponding the secondary air passageway.

The structure of the adjusting ring is various, so long as the adjusting ring can move vertically relative to the bottom of the cover body, the size of an air outlet of the secondary air channel is adjusted, and the amount of secondary air entering the central hole of the energy gathering cover is finally determined. The formation of the cavity not only allows cost savings, but also allows, on the one hand, a buffering of the velocity of the secondary air entering the central bore via the secondary air channel, and, on the other hand, an efficient preheating of the secondary air. If at least two spiral or circumferentially extending ribs are arranged on the circumference of the cavity at intervals, a gap is formed between the two ribs to form a channel for preheating secondary air, so that the effect is better.

In order to adjust the distance between the adjusting ring and the bottom of the cover body conveniently and enlarge or reduce the effective air flow of the secondary air in the secondary air channel entering the central hole, a convex ring is protruded downwards at the position, close to the outer ring wall, of the bottom of the cover body, and the outer ring wall can rotate or slide relative to the convex ring.

In order to further realize the distance between the adjusting ring and the bottom of the cover body and the distance between the adjusting ring and the central hole, the adjusting ring can move in the circumferential direction relative to the central hole.

Furthermore, the adjusting ring comprises an inner ring body and an outer ring body, the inner ring body and the outer ring body are arranged at intervals, the outer edge of the outer ring body extends downwards to form a peripheral wall, a convex strip protrudes downwards from the position, close to the peripheral wall, of the bottom of the cover body, and the peripheral wall can rotate relative to the convex strip, so that the position, corresponding to the secondary air channel, of the inner ring body is changed.

The invention provides a gas stove with the energy-gathering cover for the stove, which comprises a gas stove panel and a burner, wherein the burner comprises a gas mixing chamber and a secondary air inlet arranged on the gas mixing chamber, the inner side edge of the cover body surrounds the burner and is placed on the gas stove panel, and the invention is characterized in that: the secondary air channel and the secondary air inlet are correspondingly arranged.

In order to be more directly arranged at the position close to the central hole of the cover body and close to the air outlet end of the central hole in the channel of the secondary air, the inner side edge of the adjusting ring annular body is arranged close to the inner side edge of the cover body.

In order to enable secondary air in the secondary air channel to be capable of supplementing the secondary air channel to the fire outlet area of the inner ring fire cover and the fire outlet area of the outer ring fire cover more independently, under the condition that the outer peripheral wall rotates downwards relative to the protruding strips in the vertical direction, the inner ring body and the outer ring body of the adjusting ring divide the secondary air channel into a first air supplementing channel for supplementing the fire outlet area of the inner ring fire cover and a second air supplementing channel for supplementing the fire outlet area of the outer ring fire cover.

In order to better reflect heat energy and prevent the influence on the flow of secondary air, the radial clearance delta between the inner ring body of the adjusting ring and the outer edge of a gas mixing chamber in the combustor is 6.5-10.5 mm in a state that the inner ring body of the adjusting ring enters the central hole.

In order to prevent the energy-gathering cover from gathering heat generated in the combustion process of the burner and conducting the heat to the cooker panel, a liquid containing disc is arranged below the secondary air inlet of the burner, and at least two supporting legs for supporting the annular ring are arranged on the periphery of the liquid containing disc in an upward protruding mode. Meanwhile, the gap between the liquid containing disc and the supporting leg is also used for guiding overflow liquid.

Compared with the prior art, the secondary air flow adjusting device has the advantages that the adjusting ring capable of vertically sliding relative to the bottom of the cover body is used for adjusting the effective flow rate of secondary air in the secondary air channel entering the central hole of the cover body, the effect of adjusting the secondary air flow compensation amount according to actual use requirements is achieved, the problem of large smoke emission caused by the fact that the energy-gathering cover reduces the smoke outlet is solved, and the combustor is in a stable and good combustion state.

Drawings

FIG. 1 is a schematic structural view of a cooking range shaped cover in embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a cross-sectional view of the adjusting ring in embodiment 1 of the present invention, which is moved downward in the vertical direction relative to the bottom of the cover;

FIG. 4 is a schematic view showing a structure in which a shape concentrating cover for a range according to embodiment 1 of the present invention is rested on a panel of a gas range with its inner side edge surrounding a burner;

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

FIG. 6 is a cross-sectional view of the adjustment collar of FIG. 4 shown in a vertically downward motion relative to the bottom of the housing;

FIG. 7 is a schematic structural view of a cooking range shaped cover in embodiment 2 of the present invention;

fig. 8 is a schematic structural view of an adjustment ring in embodiment 2 of the present invention;

FIG. 9 is a cross-sectional view showing the adjustment ring moving downward in the vertical direction with respect to the bottom of the cover in embodiment 2 of the present invention;

FIG. 10 is a cross-sectional view of the adjustment collar resting on the gas range panel and not moving vertically downward relative to the bottom of the enclosure in embodiment 2 of the present invention;

fig. 11 is a cross-sectional view of the adjustment ring of fig. 10 moved vertically downward relative to the bottom of the housing.

Detailed Description

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

Example 1

As shown in fig. 1 to 6, the energy-gathering cover for a stove in this embodiment includes a cover body 1 in a ring disk shape, the height of the inner side edge of the cover body 1 is lower than that of the outer side edge, and the main reason why the heat efficiency can be improved by using the cover body 1 is that the cover body 1 effectively separates the flue gas from the channel of the supplemented secondary air, and the flowing direction of the secondary air is standardized. The inner side edge of the cover body 1 is enclosed to form a central hole 11 for secondary air to enter the inner periphery of the cover body 1, the periphery of the top of the cover body 1 is provided with a notch 12 for inserting the pan support legs 2, the roots of the pan support legs 2 inserted in the notches 12 are connected through an annular ring 10, adjacent pan support legs 2 and the annular ring 10 are jointly enclosed to form a secondary air channel 3 for connecting the outside and the central hole 11, the bottom of the cover body 1 is provided with an adjusting ring 4 which can vertically move relative to the bottom of the cover body 1, so that the position of the adjusting ring 4 in the corresponding secondary air channel 3 is changed, the effective air flow of the secondary air in the secondary air channel 3 entering the central hole 11 is changed, and partial secondary air cannot enter the central hole 11 of the cover body 1 due to the blockage of the adjusting ring 4 under the condition that the adjusting ring 4 enters the secondary air channel 3, wherein the adjusting ring 4 can enter the central hole 11 in a rotating way or can enter the central hole 11 in a sliding way, in the embodiment, the rotation is preferably used for description, specifically, the adjusting ring 4 includes an annular body 41, a cavity 414 is formed between an annular top wall 411 of the annular body 41 and an inner annular wall 412 and an outer annular wall 413 vertically extending downward from the inner edge and the outer edge of the annular top wall 411, the cavity 414 is formed not only for cost saving, but also for buffering the speed of the secondary air entering the central hole 11 through the secondary air channel 3 and effectively preheating the secondary air, and of course, if at least two ribs are provided at intervals in the circumferential direction of the cavity 414, and the two ribs are spaced to form a channel for preheating the secondary air, the effect is better; in order to be close to the position of the central hole 11 of the cover body 1, the inner side edge of the annular body 41 of the adjusting ring 4 is close to the inner side edge of the cover body 1, so that the adjusting ring 4 can be directly arranged at the air outlet end of the secondary air channel close to the central hole 11, the air quantity for the secondary air to enter the central hole 11 of the cover body 1 is increased or reduced, the effect of adjusting the secondary air supplement quantity according to actual use requirements is achieved, and the burner 5 is in a stable and good combustion state.

The invention also provides a gas stove using the energy-gathering cover for the stove, which comprises a gas stove panel and a burner 5, wherein the burner 5 comprises a base, an inner ring fire cover 51 arranged on the base and forming a central gas mixing chamber with the base, and an outer ring fire cover 52 arranged on the base and positioned on the periphery of the inner ring fire cover 51 and forming an outer ring gas mixing chamber with the base, a gas supplementing chamber 53 is formed between the central gas mixing chamber and the outer ring gas mixing chamber, a plurality of radial secondary air inlets 54 for communicating the gas supplementing chamber 53 with the central hole 11 are also arranged on the base at intervals along the circumferential direction, the inner side edge of the cover body 1 surrounds the burner 5 and is placed on a liquid containing disc 6 of the gas stove panel, and an adjusting piece is arranged close to the secondary air inlets 54. In order to enable the adjusting ring 4 to have the function of separating the secondary air inlet 54, the adjusting ring 4 is lower than the highest point of the secondary air inlet 54 but not lower than the lowest point of the secondary air inlet 54 so as to realize the distribution function of secondary air for supplying the inner ring and the outer ring of the burner 5, in order to prevent the energy-gathering cover from gathering heat generated in the combustion process of the burner 5 and conducting the heat to a cooker panel, a liquid containing disc 6 is arranged below the secondary air inlet 54 of the burner 5, a plurality of supporting legs 61 for supporting the annular ring 10 are arranged on the periphery of the liquid containing disc 6 in an upward protruding mode, and meanwhile, a gap between the liquid containing disc 6 and the supporting legs 61 is used for guiding.

Example 2

As shown in FIGS. 7 to 11, the structure is basically the same as that of embodiment 1, and the only difference is that: the adjusting ring 4' comprises an inner ring body 42 and an outer ring body 43 which are arranged at intervals in the inner center, the outer edge of the outer ring body 43 extends downwards to form a peripheral wall 431, a convex rib 14 protrudes downwards from the bottom of the cover body 1 at a position adjacent to the peripheral wall 431, the peripheral wall 431 can rotate relative to the convex rib 14, thereby changing the position of the inner ring 42 in the corresponding central hole 11, and under the condition that the inner ring 42 of the adjusting ring 4' enters the central hole 11, the radial clearance delta between the inner ring body 42 and the outer edge of the gas mixing chamber in the combustor 5 is 6.5-10.5 mm, preferably delta is 8mm, in a state where the outer peripheral wall 431 of the adjustment ring 'is rotated downward in the vertical direction relative to the projecting strip 14, the inner ring body 42 and the outer ring body 43 of the adjustment ring 4' partition the secondary air passage 3 into a first air replenishing passage 31 that replenishes the fire discharge area of the inner ring fire cover 51 and a second air replenishing passage 32 that replenishes the fire discharge area of the outer ring fire cover 52.

Claims (10)

1. An energy gathering cover for a stove is characterized in that the cover body (1) is in a ring disc shape with a central hole (11), notches (12) for inserting pot support legs (2) are formed in the periphery of the top of the cover body (1), the roots of the pot support legs (2) inserted in the notches (12) are connected through an annular ring (10), adjacent pot support legs (2) and the annular ring (10) jointly form a secondary air channel (3) communicated with the outside and the central hole (11), and an adjusting ring (4; 4 ') capable of moving vertically relative to the bottom of the cover body (1) is arranged on the bottom of the cover body (1), so that the position of the adjusting ring (4; 4') in the corresponding secondary air channel (3) is changed.

2. The cooktop concentrator cap of claim 1, wherein: the adjusting ring (4; 4') comprises an annular body (41), and a concave cavity (414) is formed between an annular top wall (411) of the annular body (41) and an inner annular wall (412) and an outer annular wall (413) which vertically extend downwards from the inner edge and the outer edge of the annular top wall (411).

3. The cooktop concentrator cap of claim 2, wherein: a convex ring (13) protrudes downwards from the bottom of the cover body (1) at a position close to the outer ring wall (413), and the outer ring wall (413) can rotate or slide relative to the convex ring (13).

4. The cooktop concentrator cap of claim 1, wherein: the adjusting ring (4; 4') can also be moved in the circumferential direction relative to the central bore (11).

5. The cooktop concentrator cap of claim 4, wherein: the adjusting ring (4; 4') comprises an inner ring body (42) and an outer ring body (43) which are arranged at intervals at the inner center, the inner ring body (42) partially extends into the central hole (11), the outer edge of the outer ring body (43) downwardly extends to form a peripheral wall (431), a convex strip (14) downwardly protrudes from the position of the bottom of the cover body (1) adjacent to the peripheral wall (431), and the peripheral wall (431) can rotate relative to the convex strip (14) so as to change the position of the inner ring body (42) in the secondary air channel (3).

6. The gas stove with the energy concentrating cover for the stove according to any one of claims 2 to 5, comprising a gas stove panel and a burner (5), wherein the burner comprises a base (50) and is arranged on the base (50), an inner ring fire cover (51) forming a central air mixing chamber with the base (50), is arranged on the base (50) and is positioned at the periphery of the inner ring fire cover (51), an outer ring fire cover (52) of an outer ring air mixing chamber is formed between the base (50), an air supplementing chamber (53) is formed between the central air mixing chamber and the outer ring air mixing chamber, a plurality of radial secondary air inlets (54) for communicating the air supplementing chamber (53) and the central hole (11) are also arranged on the base (50) at intervals along the circumferential direction, the cover (1) rests on the gas cooker panel with its inner edge surrounding the burner (5), characterized in that: the secondary air channel (3) is arranged corresponding to the secondary air inlet (54).

7. The gas range of claim 6, wherein: the inner side edge of the annular body (41) of the adjusting ring (4; 4') is arranged adjacent to the inner side edge of the cover body (1).

8. The gas range of claim 6, wherein: under the condition that the outer peripheral wall (431) rotates downwards relative to the convex strips (14) in the vertical direction, the inner ring body (42) and the outer ring body (43) of the adjusting ring (4; 4') divide the secondary air channel (3) into a first air supplementing channel (31) for supplementing a fire outlet area of the inner ring fire cover (51) and a second air supplementing channel (32) for supplementing a fire outlet area of the outer ring fire cover (52).

9. Gas range according to claim 7 or 8, characterized in that: an inner ring body (42) of the adjusting ring (4; 4') can partially extend into the central hole (11), and a radial gap delta between the inner ring body (42) and the outer edge of an outer ring gas mixing chamber in the combustor (5) is 6.5-10.5 mm.

10. Gas range according to claim 7 or 8, characterized in that: the combustor (5) is provided with a liquid containing disc (6) below the secondary air inlet (54), and the periphery of the liquid containing disc (6) is provided with at least two supporting legs (61) which are used for supporting the annular ring (10) in an upward protruding mode.

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