CN110887072A - An energy-gathering cover for a stove and a gas stove using the energy-gathering cover for the stove - Google Patents

Abstract

The invention relates to an energy collecting cover for a stove. The cover body is in the shape of a ring plate. At least one opening for secondary air to enter is formed on the bottom of the cover body. The adjusting member at the bottom of the cover body moves in the circumferential direction, thereby at least changing the partial cross-sectional area of the opening. Compared with the prior art, the advantage of the present invention is that an opening for the entry of secondary air is directly opened on the energy collecting cover. By changing the cross-sectional area of the opening, the air output of the secondary air supplementary channel can be effectively adjusted, so as to achieve the effect that the secondary air supplementary air volume can be adjusted according to the actual use needs, and overcome the reduction of the smoke caused by the exhaust port due to the energy collecting cover. The problem of large emissions keeps the burner in a stable and good combustion state.

Description

An energy-gathering cover for a stove and a gas stove using the energy-gathering cover for the stove

technical field

The invention belongs to the technical field of gas stoves, and relates to an energy collecting cover for a stove and a gas stove applying the energy collecting cover for a stove.

Background technique

In the actual use of the existing gas stove, because the pot is placed on the pot support for heating, there is a certain space interval between the pot and the burner, so that the heat energy generated by the gas combustion is not only used to heat the pot, but also has a considerable amount of heat. A part of it escapes into the surrounding environment, resulting in wasted energy. In order to solve the above problems, some heat-concentrating energy has appeared in China in recent years. , and as disclosed in Chinese patent CN204042984U "an energy-gathering type gas gas stove", the gas stove also has an energy-gathering pot bracket, and the above-mentioned energy-gathering ring structure can reduce the consumption of heat energy to a certain extent, improve The thermal efficiency of the burner can also separate the flue gas from the secondary air supplementary channel. For this reason, the above-mentioned energy gathering rings are generally provided with secondary air supplementary channels for supplementing secondary air, such as Chinese Patent ZL201320460471.1 The disclosed "energy concentrating ring for gas stove and gas stove having the same" includes a first reflection ring and a second reflection ring that effectively increase the overall reflection and energy gathering area of the energy concentrating ring. There is an air supplement channel between the upper end and the lower end of the second reflection ring. By setting the air supplement channel, the problem of insufficient air supplement during the gas combustion process can be solved. In order to reduce the emission of CO, the secondary air supplement should be as sufficient as possible. It is often excess, and excess secondary air supplementation will take away a large part of the heat energy generated by the combustion of gas; in addition to increasing the energy-gathering hood to achieve the energy-gathering effect, it can also reduce the way of smoke exhaust (smoke exhaust). The height of the mouth refers to the distance from the highest plane of the edge of the energy collecting hood to the bottom of the pot, that is, the effective height that the smoke can be discharged). There is a lot of gas and heat. If the height of the exhaust port is reduced to 6mm, the flue gas cannot be discharged smoothly, then the exhausted flue gas will be less, and the flue gas will accumulate in the inner space between the bottom of the pot and the energy collecting cover. , so that the resistance of the secondary air supplemented by the secondary air supplementary channel increases, the supplementation is not in, the combustion is incomplete, the thermal efficiency decreases, and toxic and harmful gases such as carbon monoxide are also generated; but the secondary air supplementary channel is too large, the secondary air is If the amount of entrainment is large, the heat taken away by the exhaust smoke will increase, resulting in low thermal efficiency; if the secondary air supplementary channel is too small, and the secondary air supplementary amount is not enough, it will inevitably lead to incomplete gas and excessive flue gas emissions. In order to use the gas stove in different user environments, the gas stove can have very good performance in terms of efficiency and flue gas emission. That is, on the premise of reducing the exhaust port, it is very important to supplement the appropriate amount of secondary air for the combustion conditions. big impact.

SUMMARY OF THE INVENTION

A technical problem to be solved by the present invention is to provide an energy collecting cover for a stove which can effectively adjust the air output of the secondary air supplementary channel and has strong adaptability in view of the above-mentioned current state of the prior art.

Another technical problem to be solved by the present invention is to provide a gas stove with the above-mentioned energy collecting cover for stoves applied to the above-mentioned current state of the prior art.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the energy collecting cover for a stove, the cover body is in the shape of a ring, the bottom of the cover body is provided with at least one opening for the entry of secondary air, the cover The bottom of the body is provided with an adjusting member that can move in the circumferential or radial direction relative to the bottom of the cover body, thereby at least changing the partial cross-sectional area of the opening.

In order to adjust the air volume of the secondary air in each opening, the adjusting member includes an adjusting ring, and the adjusting ring is provided with a shielding portion corresponding to each of the openings, and the shielding portion can be at least partially closed with the movement of the adjusting ring. Block the opening.

Further, from the perspective of simple structure and convenient operation, preferably, the top wall of the adjusting ring is provided with through holes spaced apart in the circumferential direction, and the interval between the adjacent through holes between the same rings constitutes the shielding portion. .

In order to avoid the minimum secondary air replenishment amount that can still meet the combustion requirements when the adjusting ring is completely closed relative to the opening, the radial width of the spacer section is smaller than the radial width of the opening.

In order to satisfy the air volume of the secondary air required for the combustion of the burner, a plurality of openings are provided, and correspondingly, a plurality of through holes are also provided, and the through holes are formed at least along the radial direction of the top wall of the ring-shaped body. In the inner and outer circles, the through holes of the adjacent circles are staggered and misaligned. Correspondingly, the openings also form at least two inner and outer circles along the radial direction of the bottom of the cover body, and the openings of the adjacent circles are also staggered and misaligned.

In order to realize that the secondary air in the secondary air channel is supplemented through the opening at the bottom of the cover body, a gap is provided on the top periphery of the cover body for the pot legs to be inserted into, and the root of each pot leg inserted into the gap passes through The annular rings are connected, and the adjacent pot legs and the annular ring together form a secondary air passage connecting the outside world and the opening, and the inner edge of the top wall of the adjusting ring is vertically or inclined toward the secondary air passage. A vertical partition is extended inside, and the vertical partition is disposed adjacent to the opening located in the innermost ring. The vertical partition has a dual purpose function: wherein, the vertical partition can "block" the overflow into the secondary air channel; in addition, the vertical partition can "lead" the secondary air channel The secondary air inside is directed into the openings, preferably the vertical partitions are inclined towards the secondary air channels.

In order to prevent the overflow from entering the secondary air channel through the opening on the bottom of the cover, the vertical partition also extends a circle of horizontal partitions in the radial direction, and the vertical partition and the horizontal partition together constitute a liquid guide area.

In order to facilitate the adjustment of the adjustment ring, the adjustment member further includes an adjustment knob capable of adjusting the movement of the adjustment ring in the circumferential direction relative to the opening.

In order to solve the second object of the present invention, the present invention provides a gas stove to which the above-mentioned energy-gathering cover for stoves is applied, including a gas stove panel and a burner, wherein the burner includes an air-mixing chamber and is disposed in the air-mixing chamber. The secondary air inlet on the upper side, the cover body surrounds the burner with its inner edge and rests on the gas stove panel, and is characterized in that: the opening is arranged corresponding to the secondary air inlet.

In order to effectively prevent overflow liquid from flowing into the burner, a liquid pan is also included on the panel of the gas cooker, the liquid pan has a central hole for the burner to pass through, and the inner edge of the liquid pan is upward. An inner boss is protruded, and the outer end of the horizontal partition plate extends beyond the outer end of the inner boss. The arrangement of the inner boss prevents the overflow of the liquid pan from entering the burner, and the outer end of the horizontal baffle in the liquid-conducting area in the adjustment ring exceeds the outer end of the inner boss, which effectively avoids the overflow entering the liquid-conducting area through the opening. The droplets land on the inner boss and flow into the burner.

In order to support the energy collecting cover for the cooktop by the liquid holding pan and prevent the heat collected during the burning process of the burner from being conducted to the cooktop panel, the outer periphery of the liquid holding pan is protruded at intervals along the circumferential direction. Outer boss. At the same time, the gap between the liquid pan and the outer boss also utilizes the diversion overflow.

Compared with the prior art, the advantage of the present invention lies in that an opening for the entry of secondary air is directly opened on the energy collecting cover, and by changing the cross-sectional area of the opening, the air output of the secondary air supplementary channel can be effectively adjusted, so that the air volume can be adjusted according to the In actual use, the effect of adjusting the amount of secondary air supplementation is needed, which overcomes the problem of large smoke emission caused by the reduction of the smoke exhaust port due to the energy collecting cover, so that the burner is in a stable and good combustion state.

Description of drawings

1 is a schematic structural diagram of an energy-gathering cover for a stove in Embodiment 1 of the present invention;

Fig. 2 is the sectional view of Fig. 1;

Fig. 3 is the exploded structure schematic diagram of Fig. 1;

Fig. 4 is the structural representation of the adjusting ring in Embodiment 1 of the present invention;

Fig. 5 is the sectional view of Fig. 1;

Fig. 6 is the structural schematic diagram of the liquid containing tray in Embodiment 1 of the present invention;

7 is a cross-sectional view of the structure of the stove energy collecting cover placed on the gas stove in Embodiment 1 of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

Example 1

As shown in FIGS. 1-7 , the energy collecting cover for a stove in this embodiment includes a cover body 1 in the shape of a ring plate. The inner edge of the cover body 1 is surrounded by a central hole for the burner 7 to pass through. The bottom of 1 is provided with at least one opening 11 for secondary air to enter. The particularity of the design of the present invention is that the distance between the inner edge of the cover body 1 and the burner 7 is very close, so that the opening 11 on the bottom of the cover body 1 is The burner 7 is the main source of supplementary secondary air; in order to further effectively adjust the air output of the opening 11, the bottom of the cover body 1 is provided with a regulating member that can move in the circumferential direction relative to the bottom of the cover body 1, thereby at least changing the opening. The partial cross-sectional area of 11, by changing the cross-sectional area of the opening 11, can effectively adjust the air output of the secondary air supplementary channel, so as to achieve the effect that the secondary air supplementary air volume can be adjusted according to the actual use needs, and overcome the reduction of the discharge due to the energy gathering cover. The large smoke emission caused by the chimney keeps the burner 7 in a stable and good combustion state. Wherein, in order to uniformly supplement the secondary air around the burner 7 , at least one opening 11 for the entry of secondary air is opened on the bottom of the cover body 1 , preferably each opening 11 is along the circumferential direction of the cover body 1 . At the same time, the adjusting member includes an adjusting ring 2. The adjusting ring 2 is provided with a shielding portion corresponding to each opening 11. The shielding portion can partially shield the opening 11 along with the movement of the adjusting ring 2, thereby changing the opening 11 at least in the shielding portion. In this embodiment, in order to avoid the minimum secondary air supplementary amount that can still meet the combustion requirements when the adjustment ring 2 is completely closed relative to the opening 11, the specific structure of the shielding part is that the top wall 21 of the adjustment ring 2 is along the There are through holes 211 spaced apart in the circumferential direction. The spacers 212 between the adjacent through holes 211 between the same rings constitute shielding parts and correspond to the openings 11 .

In order to satisfy the air volume of the secondary air required for the combustion of the burner 7, there are multiple openings 11, and correspondingly there are multiple through holes 211. The through holes 211 are at least in the radial direction of the top wall 21 of the ring-shaped body. Two inner and outer circles are formed. In this embodiment, there are four inner and outer circles. The through holes 211 of the adjacent circles are staggered and not aligned. Correspondingly, the opening 11 also forms at least two inner and outer circles along the radial direction of the bottom of the cover body 1. The openings of the adjacent circles are formed. 11 is also staggered and misaligned, and the openings 11 of the adjacent circles are staggered and misaligned to satisfy that each through hole 211 is distributed in the radial direction from the inside to the outside of the cover body 1, and is located at the bottom of the cover body 1. The effective area of the secondary air channel 5 corresponds. The secondary air channel 5 at the bottom of the cover body 1 is realized in the following way: the top periphery of the cover body 1 is provided with a gap 12 for the pot legs 3 to be inserted into, and the roots of the pot legs 3 inserted in the gap 12 pass through The annular ring 4 is connected, and the adjacent pot legs 3 and the annular ring 4 together form a secondary air channel 5 connecting the outside world and the opening 11. In order to better support the bottom of the cover body 1, the annular ring 4 is located on the pot legs. The inner side of 3 is provided with a first support foot 41 protruding upward, correspondingly the inner edge of the bottom of the cover body 1 is provided with a second supporting foot 10 downward, and the inner edge of the top wall 21 of the adjustment ring 2 is vertically or inclined toward the secondary air. A vertical partition plate 211 extends in the channel 5, and the vertical partition plate 211 is arranged adjacent to the opening 11 located in the innermost ring. In order to prevent the overflow from entering the secondary air channel 5 through the opening 11 on the bottom of the cover body 1, The vertical partition plate 211 also has a circle of horizontal partition plates 212 extending in the radial direction, and the vertical partition plate 211 and the horizontal partition plate 212 together constitute a liquid-conducting area 213 . The vertical partition 211 has a dual-purpose function: wherein, the vertical partition 211 can "stop" the overflow from entering the secondary air channel 5; in addition, the vertical partition 211 can The secondary air in the secondary air channel 5 is guided into the opening 11 through the vertical partition 211 , preferably the vertical partition 211 is inclined towards the secondary air channel 5 . In order to adjust the adjusting ring 2 conveniently, the adjusting member further includes an adjusting knob 50 capable of adjusting the adjusting ring 2 to move in the circumferential direction relative to the opening 11 .

The present invention also provides a gas stove using the above-mentioned energy collecting cover for a stove, including a gas stove panel and a burner 7, and the burner 7 includes an air mixing chamber 71 and a secondary air inlet 72 arranged on the air mixing chamber 71, The cover body 1 surrounds the burner 7 with its inner edge and rests on the liquid pan 8 on the gas stove panel (not shown in the figure). In order to uniformly supplement the secondary air around the burner 7, the cover The openings 11 on the bottom of the body 1 for the entry of secondary air are correspondingly arranged with the secondary air inlets 72 on the mixing chamber 71, and the movement of the adjusting ring 2 relative to the opening 11 can be adjusted by the knob to partially block the opening 11, By changing the cross-sectional area of the opening 11, the air outlet volume of the secondary air supplementary passage can be effectively adjusted, so as to achieve the effect that the secondary air supplementary air volume can be adjusted according to the actual use needs. The liquid pan 8 is located above the gas stove panel. The liquid pan 8 has a central hole 81 for the burner 7 to pass through. The inner edge of the liquid pan 8 protrudes upward with an inner boss 811. The outer end of the horizontal partition 212 Beyond the outer end of the inner boss 811, the setting of the inner boss 811 prevents the overflow of the liquid pan 8 from entering the burner 7, and the outer edge 212a of the horizontal partition 212 in the liquid conducting area 213 in the adjustment ring 2 protrudes beyond the inner The outer end 811 a of the boss 811 can effectively prevent the overflow liquid entering the liquid conducting area 213 through the opening 11 from falling onto the inner boss 811 and then flowing into the burner 7 . Finally, in order to support the energy collecting cover for the cooker on the liquid holding pan 8 and at the same time prevent the energy collecting cover from collecting the heat of the combustion process of the burner 7 and conducting it to the cooktop panel 6, the outer periphery of the liquid holding pan 8 is protruded at intervals along the circumferential direction. The outer boss 812 of the ring 4, and at the same time, the gap between the liquid pan 8 and the outer boss 812 is also used for diversion overflow.

Example 2

The structure of the embodiment 1 is basically the same, and the only difference is that the shielding portion of the adjusting ring 2 is only a shielding plate without a through hole 211 in one circle.

Example 3

The structure is basically the same as that of Embodiment 1, the only difference is that the adjustment members are a plurality of adjustment plates distributed radially along the bottom of the cover body 1, and each adjustment plate can slide radially from the outside to the inside along the bottom of the cover body 1, and then Each opening 11 is blocked.

Claims (11)

1. The utility model provides a kitchen is with gathering can cover, this cover body (1) is the ring dish form, set up at least one opening (11) that supply the secondary air to get into on the bottom of the cover body (1), be provided with on the bottom of the cover body (1) and can be relative cover body (1) bottom is at the local sectional area of circumference or radial removal, and then changes this opening (11) at least.

2. The cooktop concentrator cap of claim 1, wherein: the adjusting piece comprises adjusting rings (2), the adjusting rings (2) are provided with shielding parts corresponding to the openings (11), and the shielding parts can at least partially shield the openings (11) along with the movement of the adjusting rings (2).

3. The cooktop concentrator cap of claim 2, wherein: through holes (211) are formed in the top wall (21) of the adjusting ring (2) at intervals along the circumferential direction, and the shielding part is formed by the interval sections (212) between the adjacent through holes (211) between the same rings.

4. The cooktop concentrator cap of claim 3, wherein: the radial width of the spacer (212) is smaller than the radial width of the opening (11).

5. The cooktop concentrator cap of claim 3, wherein: the through holes (211) form at least two circles of inner and outer circles along the radial direction of the top wall (21) of the ring-shaped body, the through holes (211) of the adjacent circles are staggered and not aligned, correspondingly, the openings (11) also form at least two circles of inner and outer circles along the radial direction of the bottom of the cover body (1), and the openings (11) of the adjacent circles are also staggered and not aligned.

6. The energy concentrating hood for a kitchen range according to any one of claims 2 to 5, characterized in that: the pot is characterized in that a notch (12) for inserting and matching pot support legs (3) is formed in the periphery of the top of the cover body (1), the roots of the pot support legs (3) of the notch (12) are connected through an annular ring (4), adjacent pot support legs (3) are connected with the annular ring (4) in a surrounding mode to form a secondary air channel (5) connected with the outside and the opening (11), the inner side edge of the top wall (21) of the adjusting ring (2) is vertical or inclined, a vertical partition plate (211) extends into the secondary air channel (5), and the vertical partition plate (211) is adjacent to the opening (11) located at the innermost ring.

7. The cooktop concentrator cap of claim 6, wherein: the vertical partition plate (211) also extends along the radial direction to form a circle of horizontal partition plate (212), and the vertical partition plate (211) and the horizontal partition plate (212) jointly form a liquid guide area (213).

8. The energy concentrating hood for a kitchen range according to any one of claims 2 to 5, characterized in that: the adjusting piece further comprises an adjusting knob (50) capable of adjusting the adjusting ring (2) to move in the circumferential direction relative to the opening (11).

9. The gas stove with the energy concentrating hood for the stove according to any one of claims 1 to 8, comprising a gas stove panel and a burner (7), wherein the burner (7) comprises a gas mixing chamber (71) and a secondary air inlet (72) arranged on the gas mixing chamber (71), the cover body (1) is rested on the gas stove panel by surrounding the burner (7) along the inner side edge thereof, and is characterized in that: the opening (11) is arranged corresponding to the secondary air inlet (72).

10. The gas range of claim 9, wherein: the gas stove is characterized by further comprising a liquid containing plate (8) located on the gas stove panel, the liquid containing plate (8) is provided with a central hole (81) for the burner (7) to penetrate through, an inner boss (811) protrudes upwards from the inner edge of the liquid containing plate (8), and the outer edge (212a) of the horizontal partition plate (212) exceeds the outer end (811a) of the inner boss (811).

11. The gas range of claim 10, wherein: the periphery of the liquid containing disc (8) is provided with outer bosses (812) which are raised at intervals along the circumferential direction and can support the annular ring (4).

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