CN110887075A

CN110887075A - Energy-gathering cover for stove and gas stove applying same

Info

Publication number: CN110887075A
Application number: CN201811047184.1A
Authority: CN
Inventors: 柯情
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-09-09
Filing date: 2018-09-09
Publication date: 2020-03-17

Abstract

The invention relates to an energy-gathering cover for a stove, which is in a ring disk shape with a central hole and is characterized in that: the inner side edge of the cover body is provided with at least two clapboards which are protruded downwards at intervals along the circumferential direction, an opening for secondary air to enter the central hole is formed between the adjacent clapboards, the bottom of the cover body is provided with an adjusting ring which can move in the circumferential direction relative to the bottom of the cover body, the bottom of the adjusting ring is provided with at least two outward convex parts which protrude outwards in the radial direction, each outward convex part at least partially shields the corresponding opening, and the adjusting ring can move in the circumferential direction relative to the cover body under the action of external force, so that the positions of the outward convex parts in the corresponding openings are changed, and further the effective sectional area of the openings is changed.

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, some heat collecting and energy gathering have appeared in China in recent years, for example, the energy gathering ring for the gas stove and the gas stove with the same disclosed in Chinese patent CN203404823U, and the energy gathering type gas stove disclosed in Chinese patent CN204042984U, the gas stove is also provided with an energy gathering pot support, the energy gathering ring structure can reduce the consumption of heat energy to a certain extent, improve the heat efficiency of the burner, and can separate the smoke and a secondary air replenishing channel, therefore, the energy gathering ring is generally provided with the secondary air replenishing channel for replenishing secondary air, for example, the energy gathering ring for the gas stove and the gas stove with the same disclosed in Chinese patent ZL201320460471.1 comprises a first reflecting ring and a second reflecting ring which effectively increase the whole reflection and energy gathering area of the energy gathering ring, and an air replenishing channel is arranged 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 size of a secondary air supplement channel and has strong adaptability, aiming at the current situation of the prior art.

The invention aims to solve the technical problem of providing a kitchen range energy collecting cover capable of effectively preheating secondary air in view of the prior art.

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 is the ring disk form that has central hole, its characterized in that: the inboard edge of the cover body has two at least baffles along circumference interval downwardly protruding, constitutes the secondary air admission between the adjacent baffle the opening in central authorities hole, be provided with on the bottom of the cover body can be relative the cover body bottom is at the regulation circle that upwards moves in circumference, the bottom of regulation circle has two at least radial evagination's outer convex parts, and every outer convex part is at least local shelters from corresponding opening, and the regulation circle can be relative under the exogenic action the cover body upwards moves in circumference, outer convex part can be along with the removal of regulation circle and at least local shelter from the opening.

In order to lead the secondary air to the corresponding opening from outside to inside, the adjusting ring comprises an annular body, and at least two outward convex parts are arranged at intervals along the circumferential direction of the lower surface of the annular top wall of the body.

The present invention is directed to solve the second object, and to increase the area of the outer protrusion for preheating the secondary air, wherein the outer end of the outer protrusion has a width smaller than that of the inner end, and the outer end of the outer protrusion extends obliquely to the inner end of the outer protrusion.

In order to increase the contact area between the outer convex parts and the secondary air, the outer convex parts are uniformly arranged along the circumferential direction of the cover body at intervals and are spirally radial as a whole. At the same time, the helical outer protrusion enables better guidance of secondary air from the outside to the inside into the corresponding opening.

In order to better preheat the secondary air, the peripheral wall of each external convex part is formed with at least two convex ribs, and a space is reserved between the adjacent convex ribs to form a channel for preheating the secondary air.

In order to prevent heat absorbed by the outer convex part on the adjusting ring from being conducted to the gas stove panel in the combustion process, convex edges extend downwards from two sides of the bottom of the outer convex part. The convex edge is utilized to enable a space to be reserved between the outer convex part of the adjusting ring and the gas stove panel.

In order to prevent the adjusting ring from completely sealing the opening in the process of moving towards the opening, the adjusting ring further comprises a limiting piece which acts on the adjusting ring and limits the adjusting ring when the adjusting ring moves towards the opening to a set spacing distance. This spacing distance is for ensureing the required minimum secondary air's of combustor in combustion process volume to sheltering from under the state that diminishes when the opening is sheltered from by the outer convex part of regulating ring, can increase secondary air's air intake resistance, form the air current disturbance, increase secondary air and the heat transfer time of outer convex part, finally can also effectively reduce secondary air's air current velocity of flow.

The structure of locating part can have the multiple like elastic component, and from the installation simple, convenient operation's angle starts, the locating part includes spacing hole and spacing foot, spacing foot sets up cover body bottom lower surface, spacing hole then sets up on the cyclic annular roof of regulating collar to can be along with the removal of regulating collar is relative spacing foot removes.

In order to prevent the adjusting ring from being separated from the cover body in the process of moving the adjusting ring, the head part of the limiting pin is in threaded connection with a nut, and the limiting pin is connected to the adjusting ring under the condition that the nut is clamped outside the limiting hole.

The invention provides a gas stove using the energy-gathering cover for the stove to solve the third object, 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 energy-gathering cover for the stove is characterized in that: the opening is arranged adjacent to the secondary air inlet.

Further, the gas stove further comprises a liquid containing disc positioned below the gas stove panel, and the adjusting ring is placed on the liquid containing disc through the convex edges on the two sides of the bottom of the outer convex part. Therefore, the heat absorbed by the adjusting ring in the combustion process is not easy to be conducted to the gas stove panel through the liquid containing disc.

In order to enhance the function of the liquid containing tray for storing overflowing liquid, inner bosses capable of supporting the outer convex parts are protruded at intervals along the circumferential direction on the inner circumference of the liquid containing tray, and correspondingly, notches matched with the inner bosses are recessed from bottom to top on the inner side ends of the outer convex parts.

Preferably, the recess and the inner boss have a space therebetween, the space forming a liquid storage region. When overflow overflows into the liquid containing plate in the cooking process, the overflow can enter the liquid storage area through the inner boss for storage, and when the overflow stored in the notch needs to be discharged, only the adjusting ring needs to be rotated.

In order to adjust the circle and be difficult for conducting to the gas-cooker panel through flourishing liquid dish in the absorbed heat of combustion process, the top periphery of the cover body is seted up and is supplied the pot stabilizer blade to insert the breach of joining in marriage, inserts the joining in marriage the root of each pot stabilizer blade of breach is connected through the annular ring, flourishing liquid dish periphery is along protruding the outer boss that can support along circumference interval the annular ring. Meanwhile, the annular ring is supported by the outer boss, so that the stability of the pot supporting legs on the cover body can be improved, and a gap is formed between the liquid containing disc and the annular ring to utilize flow guide overflow liquid.

Compared with the prior art, the invention has the advantages that an opening for secondary air to enter the central hole is formed between adjacent clapboards at the inner side edge of the cover body, the outer convex part on the adjusting ring partially shields the opening by the circumferential movement of the adjusting ring relative to the bottom of the cover body, so that the change of the effective sectional area of the opening is realized, the effective flow rate of the secondary air in the secondary air channel entering the central hole of the cover body is further adjusted, the effect of adjusting the secondary air supplement amount according to the actual use requirement is achieved, the problem of large smoke emission caused by the reduction of the smoke exhaust port by the energy-gathering cover is solved, and the burner is in a stable and good combustion state.

Drawings

FIG. 1 is a schematic structural view of each opening of an adjusting ring of a cumulative cover for a cooking stove, which corresponds to an unshielded part, according to an embodiment of the invention;

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

FIG. 3 is a schematic view of an angle of the housing according to an embodiment of the present invention;

FIG. 4 is a schematic view of another angle of the mask body according to the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an adjustment ring according to an embodiment of the present invention;

FIG. 6 is a top view of FIG. 1;

FIG. 7 is a schematic structural view of the adjusting ring of the energy concentrating cover for a cooking stove according to an embodiment of the present invention, wherein the outer convex portion partially covers each corresponding opening;

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

FIG. 9 is a top view of FIG. 7;

FIG. 10 is a schematic view of the structure of the energy concentrating cover for the kitchen range resting on the gas range panel according to the embodiment of the invention;

FIG. 11 is a cross-sectional view of the kitchen range hood according to the embodiment of the present invention, which is placed on a gas kitchen range panel, and the outer protrusions of the adjusting ring of the kitchen range hood do not cover the corresponding openings;

fig. 12 is a sectional view of the kitchen range shaped cover according to the embodiment of the present invention, which is placed on a gas kitchen range panel, and the outer convex portion of the adjusting ring of the kitchen range shaped cover partially blocks each corresponding opening.

Detailed Description

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

As shown in fig. 1 to 12, the hood body 1 of the energy collecting hood for a kitchen range in the embodiment is in a ring disk shape having a central hole 11, the height of the inner edge of the hood body 1 is lower than that of the outer edge, and the main reason why the use of the hood body 1 can improve the heat efficiency is that the hood body 1 effectively separates the passage of the smoke and the supplemented secondary air, and the flowing direction of the secondary air is also standardized. In this embodiment, the peripheral wall of the cover body 1 is further provided with notches 10 for inserting the pan support legs 6, each pan support leg 6 is connected through the annular ring 7, a secondary air channel connecting the outside and the central hole 11 is defined between adjacent pan support legs 6, the annular ring 7 and the peripheral wall of the cover body 1 together, the bottom of the cover body 1 is provided with an adjusting ring 2 capable of moving in the circumferential direction relative to the bottom of the cover body 1, the bottom of the adjusting ring 2 is provided with a plurality of radially outward convex outer convex parts 21, each outer convex part 21 at least partially shields the corresponding opening 13, and the adjusting ring 2 can move in the circumferential direction relative to the cover body 1 under the action of external force, the outer convex parts 21 can at least partially shield the openings 13 along with the movement of the adjusting ring 2, wherein the apertures of the openings 13 can be the same or different, and in order to more uniformly adjust the amount of secondary air entering the combustor 4, preferably, the apertures of,

specifically, the adjusting ring 2 includes an annular main body 22, the plurality of outward protrusions 21 are circumferentially provided at intervals along the lower surface of the annular top wall of the main body 22, the outward protrusions 21 can not only partially shield the openings 13 of the secondary air passage, but also can guide the secondary air from the outside to the inside into the corresponding openings 13, in addition, in order to increase the area of the outer protrusions 21 for preheating the secondary air, the width of the outer ends 211 of the outward protrusions 21 is smaller than that of the inner ends 212, and the outer ends 211 of the outward protrusions 21 extend obliquely to the inner ends 212 of the outward protrusions 21, wherein each of the outward protrusions 21 is preferably provided in a manner that: the outward protrusions 21 are arranged at regular intervals along the circumferential direction of the cover 1 and are spirally and radially formed as a whole. This arrangement not only increases the contact area between the outer protrusion 21 and the secondary air, but also allows the secondary air to be better guided from the outside to the inside into the corresponding opening 13 by the spiral outer protrusion 21; and the periphery wall of each outer convex part 21 is formed with a plurality of ribs 213, and an interval is left between adjacent ribs 213 to form a channel for preheating secondary air, wherein the ribs 213 can be arranged along the circumferential direction or vertically, so that the intake resistance of the secondary air can be increased to form air flow disturbance and increase the heat exchange time between the secondary air and the outer convex part 21 in the process of guiding the secondary air from outside to inside to the corresponding opening 13, and finally, the air flow velocity of the secondary air can be effectively reduced, and the vertical arrangement is preferred. Further, in order to prevent the heat absorbed by the external protrusion 21 of the adjusting ring 2 from being conducted to the gas stove panel during the combustion process, the two sides of the bottom of the external protrusion 21 are extended downward with a convex edge 214, and the convex edge 214 is used to make a gap between the external protrusion 21 of the adjusting ring 2 and the gas stove panel.

In order to prevent the adjusting ring 2 from completely sealing the opening 13 in the process of moving towards the opening 13, the adjusting ring further comprises a limiting member 3 acting on the adjusting ring 2 to limit the adjusting ring 2 when the adjusting ring 2 moves towards the opening 13 to a set spacing distance, wherein the limiting member 3 of the embodiment adopts a limiting mode of a limiting hole 31 and a limiting pin 32, the limiting pin 32 is arranged on the lower surface of the bottom of the cover body 1, the limiting hole 31 is arranged on the annular top wall of the adjusting ring 2 and can move relative to the limiting pin 32 along with the movement of the adjusting ring 2, and the length of the limiting hole 31 is designed to be determined by that when the adjusting ring 2 moves relative to the bottom of the cover body 1, the limiting hole 31 touches the limiting pin 32 from the starting end 311 to the terminal end 312 to touch the limiting pin 32, and the outer convex part 21 of the adjusting ring 2 cannot completely block each corresponding opening 13. In order to prevent the adjusting ring 2 from being separated from the cover body 1 in the process of moving the adjusting ring 2, the head part of the limiting leg 32 is connected with a nut 33 through a thread, and the limiting leg 32 is connected to the adjusting ring 2 under the condition that the nut 33 is clamped outside the limiting hole 31.

The outer protrusion 21 of the adjusting ring 2 of the present invention can move circumferentially (for example, rotate counterclockwise) relative to the opening 13, and has the following two engagement states:

a. the state in which the diameter of each opening 13 through which secondary air enters the center hole 11 is the largest: at this time, the limiting feet 32 at the bottom of the cover body 1 touch the starting ends 311 of the limiting holes 31, and the corresponding openings 13 are not shielded by the outer convex parts 21 of the adjusting ring 2;

b. the state in which the diameter of each opening 13 through which secondary air enters the central hole 11 is smallest: at this time, the adjusting ring 2 rotates counterclockwise relative to the bottom of the cover body 1, and when the limiting leg 32 at the bottom of the cover body 1 touches the terminal 312 of the limiting hole 31, the outer convex portion 21 of the adjusting ring 2 partially blocks each corresponding opening 13.

The invention also provides a gas stove using the energy-gathering cover for the stove, which comprises a gas stove panel and a burner 4, wherein the burner 4 comprises a base 41, an inner ring fire cover 42 which is arranged on the base 41 and forms a central air-mixing chamber with the base 41, an outer ring fire cover 43 which is arranged on the base 41 and is positioned on the periphery of the inner ring fire cover 42 and forms an outer ring air-mixing chamber with the base 41, an air supplement chamber 44 is formed between the central air-mixing chamber and the outer ring air-mixing chamber, a plurality of radial secondary air inlets 45 which are used for communicating the air supplement chamber 44 with the outside are arranged on the base 41 at intervals along the circumferential direction, each opening 13 is arranged near the secondary air inlet 45, the outer convex part 21 on the adjusting ring 2 partially shields the opening 13 through the circumferential movement of the adjusting ring 2 relative to the bottom of the cover body 1, thereby realizing the change of the effective sectional area of the opening 13 and further adjusting the effective air flow of the secondary air in a secondary air channel entering the, the gas stove further comprises a liquid containing disc 5 positioned below the gas stove panel, and the adjusting ring 2 is placed on the liquid containing disc 5 through the convex edges 214 on the two sides of the bottom of the outer convex part 21, so that heat absorbed by the adjusting ring 2 in the combustion process is not easily conducted to the gas stove panel through the liquid containing disc 5. In order to enhance the function of the liquid containing plate 5 for storing the overflowing liquid, the inner circumference of the liquid containing plate 5 is provided with inner bosses 51 capable of supporting the outer bosses 21 at intervals along the circumferential direction, correspondingly, the inner side ends 212 of the outer bosses 21 are recessed from bottom to top with notches 2121 matched with the inner bosses 51, a gap is formed between the notches 2121 and the inner bosses 51, and the gap forms a liquid storing area 2122, when the overflowing liquid overflows into the liquid containing plate 5 in the cooking process, the overflowing liquid can enter the liquid storing area 2122 through the inner bosses 51 for storage, and when the overflowing liquid stored in the liquid storing area 2122 needs to be discharged, only the adjusting ring 2 needs to be rotated. Finally, in order to ensure that the heat absorbed by the adjusting ring 2 in the combustion process is not easily conducted to the gas stove panel through the liquid containing disc 5, the periphery of the top of the cover body 1 is provided with a notch 10 for the insertion of the pan support legs 6, the roots of the pan support legs 6 inserted in the notches 10 are connected through the annular ring 7, the periphery of the liquid containing disc 5 is provided with outer bosses 52 capable of supporting the annular ring 7 at intervals along the circumferential direction, and the annular ring 7 is supported through the outer bosses 52, so that the stability of the pan support legs 6 on the cover body 1 can be improved, and a gap can be reserved between the liquid containing disc 5 and the annular ring 7 to utilize flow guiding overflow liquid.

Claims

1. An energy gathering cover for a stove, which cover body (1) is in the shape of a ring disk with a central hole (11), characterized in that: the inner side edge of the cover body (1) is provided with at least two partition plates (12) which protrude downwards at intervals along the circumferential direction, secondary air enters the opening (13) of the central hole (11) between the adjacent partition plates (12), the bottom of the cover body (1) is provided with an adjusting ring (2) which can move in the circumferential direction relative to the bottom of the cover body (1), the bottom of the adjusting ring (2) is provided with at least two radially outwards protruding outer convex parts (21), each outer convex part (21) at least partially shields the corresponding opening (13), the adjusting ring (2) can move in the circumferential direction relative to the cover body (1) under the action of external force, and the outer convex parts (21) can at least partially shield the openings (13) along with the movement of the adjusting ring (2).

2. The cooktop concentrator cap of claim 1, wherein: the adjusting ring (2) comprises an annular body (22), and at least two outer convex parts (21) are arranged on the lower surface of the annular top wall of the body (22) at intervals in the circumferential direction.

3. The cooktop heat shield of claim 2, wherein: the width of the outer end (211) of the outer convex part (21) is smaller than that of the inner end (212), and the outer end (211) of the outer convex part (21) extends to the inner end (212) of the outer convex part (21) in an inclined mode.

4. The cooktop heat shield of claim 3, wherein: the outer convex parts (21) are uniformly arranged at intervals along the circumferential direction of the cover body (1) and are spirally radial as a whole.

5. The cooktop heat shield of claim 4, wherein: the peripheral wall of each external convex part (21) is formed with at least two convex ribs (213), and a space is reserved between every two adjacent convex ribs (213) to form a channel for preheating secondary air.

6. The heat shield for a cooktop according to any one of claims 1 to 5, wherein: convex edges (214) extend downwards from two sides of the bottom of the outer convex part (21).

7. The energy concentrating hood for a kitchen range according to any one of claims 2 to 5, characterized in that: the adjustable device is characterized by further comprising a limiting piece (3) which acts on the adjusting ring (2), and when the adjusting ring (2) moves to a set interval distance towards the opening (13), the adjusting ring (2) is limited.

8. The cooktop concentrator cap of claim 7, wherein: the limiting part (3) comprises a limiting hole (31) and a limiting foot (32), the limiting foot (32) is arranged on the lower surface of the bottom of the cover body (1), the limiting hole (31) is arranged on the annular top wall of the adjusting ring (2), and the limiting hole can move relative to the limiting foot (32) along with the movement of the adjusting ring (2).

9. The cooktop concentrator cap of claim 8, wherein: the head of the limiting foot (32) is connected with a nut (33) in a threaded mode, and the limiting foot (32) is connected to the adjusting ring (2) under the condition that the nut (33) is clamped outside the limiting hole (31).

10. A gas range using the energy concentrating hood for range of any one of claims 1 to 9, comprising a gas range panel and a burner (4), wherein the burner (4) comprises a gas mixing chamber and a secondary air inlet (45) arranged on the gas mixing chamber, the hood (1) is rested on the gas range panel by surrounding the burner (4) along its inner side edge, characterized in that: the opening (13) is arranged adjacent to the secondary air inlet (45).

11. The gas range of claim 10, wherein: the gas stove is characterized by further comprising a liquid containing disc (5) positioned below the gas stove panel, and the adjusting ring (2) is placed on the liquid containing disc (5) through convex edges (214) on two sides of the bottom of the outer convex part (21).

12. The gas range of claim 11, wherein: inner bosses (51) capable of supporting the outer protrusions (21) are protruded at intervals along the circumferential direction on the inner circumference of the liquid containing disc (5), and correspondingly, notches (2121) matched with the inner bosses (51) are recessed from the bottom to the top of the inner side ends (212) of the outer protrusions (21).

13. The gas range of claim 12, wherein: the recess (2121) and the inner boss (51) have a space therebetween, and the space forms a liquid storage region (2122).

14. The gas range according to any one of claims 10 to 13, wherein: the pot cover is characterized in that a notch (10) for inserting and matching pot support legs (6) is formed in the periphery of the top of the cover body (1), the roots of the pot support legs (6) inserted and matched with the notch (10) are connected through an annular ring (7), and outer bosses (52) capable of supporting the annular ring (7) are arranged on the periphery of the liquid containing disc (5) at intervals along the circumferential direction in a protruding mode.