CN210398999U

CN210398999U - Gas stove capable of adjusting combustion state

Info

Publication number: CN210398999U
Application number: CN201920459401.1U
Authority: CN
Inventors: 苏慧玲
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-04-24
Anticipated expiration: 2029-04-04

Abstract

The utility model relates to a can adjust gas-cooker of combustion state, including the combustor, the combustor is including base, inner ring fire lid, outer loop fire lid, its characterized in that: the burner is characterized by further comprising an adjusting piece, wherein the adjusting piece is provided with an annular body, a central hole for the top of the burner to penetrate through is formed in the edge of the inner side of the body in a surrounding mode, separators are arranged at intervals along the circumferential direction of the top of the body, and the separators are arranged in the secondary air supplementing channel; in addition, the gas stove utilizes the adjusting piece to achieve the effect of reasonable proportion of secondary air, so that the inner ring and the outer ring can be fully combusted, and the gas stove is particularly suitable for an outer ring fire cover with two rings of fire and is beneficial to improving the heat efficiency of a combustor.

Description

Gas stove capable of adjusting combustion state

Technical Field

The utility model relates to a gas-cooker field, concretely relates to a combustor for gas-cooker.

Background

The primary air coefficient of the existing atmospheric stove burner is generally 0.4-0.7, the premixed air cannot reach the air amount required by complete combustion, and various factors are added, so that certain secondary air supplement is required, and in order to reduce the emission of CO, the secondary air supplement is required to be as sufficient as possible. 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: due to the injection effect of combustion hot air flow, secondary air is sucked by the inner fire cover and the outer fire cover through the air mixing chamber side air inlet, the heat load of the inner ring is small, the coefficient of primary air is higher than that of the outer ring, the sucked secondary air is often excessive, the secondary air sucked by the middle ring fire hole of the outer fire cover is insufficient, the large heat load cannot be realized, and further improvement is needed for reasonably distributing the secondary air and simultaneously realizing the sufficient combustion of the inner ring and the outer ring.

In addition, generally, according to a method of burning gas fuel in a gas boiler, such as a premix burner, gas and air are premixed in a mixing ratio optimum for combustion and then supplied to the surface of a fire hole to perform combustion. That is, after the mixture of the gas and the air injected from the nozzle of the gas injection port flows into the mixing chamber, the mixture is supplied to the combustion chamber through the fire hole and is combusted in the combustion chamber. A typical burner in the related art includes a gas valve that regulates gas pressure supplied to the burner, a nozzle that injects gas supplied through the gas valve, a mixture gas flow inlet through which the gas ejected from the nozzle is mixed and supplied, an inner space of the burner to which the mixture gas supplied through the mixture gas flow inlet is supplied, and a fire cover including a plurality of fire holes to inject the mixture gas supplied to the inner space to a combustion chamber. When the load required by the combustion device is large, the gas valve is controlled to supply gas to the combustion chamber under high pressure, so as to achieve the purpose of high output of the combustor. On the contrary, when the load amount required for the combustion apparatus is small, the gas valve is controlled so that the gas is supplied to the combustion chamber at a low pressure to achieve the low output of the burner. In this case, the speed of the mixture injected into the combustion chamber through the flame hole is subject to the gas pressure determined by the gas valve control. That is, if the gas pressure is high, the speed of the mixture injected through the fire hole is also high. However, according to the burner having the above-mentioned structure, when the load amount required for the combustion apparatus is small, if the gas is supplied at low pressure, since the injection speed injected into the inside of the combustion chamber is lower than the combustion speed of the mixture gas in the combustion chamber, flames are generated at the inner surface of the fire deck facing the inside of the combustion chamber. As a result, there is a problem that the combustion is abnormal, that is, the occurrence of backfire. That is, if the velocity of the mixture injected through the fire hole is less than a predetermined velocity, the flashback that generates a flame inside the fire hole may occur. However, the diversity of the user's demand is difficult to satisfy through flow control's mode, like chinese utility model patent of patent number ZL201620432553.9 "a big fire lid of novel gas-cooker (the grant bulletin number is CN205783145U), this patent contains the block body, and block body middle part contains two articulated positions, and two articulated positions are block one and block two respectively, and block one and block two contain the fire hole separately, are circular structure when block one and block two do not the mutual rotation. The block body I rotates relative to the block body II, so that the direction of the fire hole is adjusted, the main effect is that the firepower is conveniently concentrated for cooking, the adjusting mode is simple, and the firepower adjustment is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide a secondary air rational distribution's that can realize the side air of inside and outside ring fire lid can adjust combustion state gas-cooker.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this can adjust gas-cooker of combustion state, its characterized in that: including 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; an air supplement cavity is formed between the central air mixing chamber and the outer ring air mixing chamber; a plurality of radial secondary air supply channels for communicating the air supply cavity with the outside are arranged on the base at intervals along the circumferential direction;

the method is characterized in that: still including the regulating part, this regulating part has and is annular body, the inboard border of body encloses into the central authorities hole that the top that has the confession combustor was worn out, the top of body is equipped with the separator along circumference interval, be provided with in the secondary tonifying qi passageway the separator, the separator can with the secondary tonifying qi passageway is separated into two relatively independent spaces, communicates the outer loop gas mixing chamber respectively go out fire hole region with the outer wall region of central authorities gas mixing chamber.

Wherein the separator is arranged in the secondary air supply channel and can separate the secondary air supply channel into relatively independent spaces, the air forms two independent air supply channels through the separation effect of the separator, the surplus of secondary air in the inner ring is effectively avoided, the phenomenon of unreasonable distribution of secondary air due to insufficient secondary air at the outer ring can lead the secondary air to be forcibly divided by the separator, so that the inner ring and the outer ring can be fully combusted, and the burner is particularly suitable for an outer ring fire cover with two rings of fire, the setting of the separator can avoid the mutual influence of the secondary air between the inner ring and the outer ring, and can effectively perform the secondary air supplement on one side of the fire hole of the outer ring fire cover adjacent to the gas supplement cavity, thereby having accurate positioning and improving the combustion efficiency of the gas, meanwhile, the separator can recycle the heat of the air mixing chamber, secondary air can be preheated, and the heat efficiency of the combustor is improved.

Further, in order to realize that the separator of the adjusting piece can separate the secondary air supply channel of the combustor, and can realize reasonable distribution of secondary air of side air inlet of the inner ring fire cover and the outer ring fire cover and change the fire outlet area of the combustor, preferably, the following scheme is adopted: the adjusting member is movable in a vertical direction relative to the burner.

The partition may be disposed in a manner that the secondary air supply passage is partitioned into at least two independent spaces in an axial up-down direction or at least two independent spaces in a radial left-right direction, and preferably, the partition includes a horizontal partition in view of easy installation.

In order to better achieve the partition effect of the partition, the inner ends of the partition are folded upwards.

Further, this gas-cooker that can adjust combustion state, its characterized in that: also includes:

a panel having a mounting hole aligned with the central hole.

In order to facilitate the vertical movement of the adjusting piece relative to the combustor, the vertical movement adjusting device further comprises a driving mechanism which is positioned on the lower surface of the panel and is used for driving the adjusting piece to move in the vertical direction relative to the combustor.

Further, the driving mechanism comprises a driving gear coaxially connected with a valve rod in a gas valve for supplying gas to the gas stove and a driven gear meshed with the driving gear, wherein a circle of convex wall corresponding to the linear adjustment of the gas valve is convexly arranged on the upper surface of the driven gear, and a connecting rod connected to the vertical part, and the tail end of the connecting rod is provided with a connecting part capable of sliding relative to the convex wall. The following fit conditions exist during the movement of the adjusting member relative to the burner:

uncooked state: the separator supports against the lower end face of the secondary air supply channel, and the driving gear and the driven gear do not rotate relatively.

Cooking state: the driving gear and the driven gear rotate coaxially along with a valve rod in the gas valve, therefore, the separating piece moves along with the adjusting piece, when the output quantity required is low, the separating piece is positioned in the middle of the secondary air supplement channel, and the inner ring fire cover and the outer ring fire cover are combusted in a state of reasonably distributing secondary air.

In order to realize that the separating piece is linearly changed along with the gas valve, the convex wall comprises a first convex wall and a second convex wall which are symmetrically arranged by the central axis of the driven gear, and the first convex wall and the second convex wall both gradually protrude towards the center from bottom to top along the periphery of the driven gear and then gradually extend downwards from the center.

Preferably, from the viewpoint of simple mounting structure, the coupling portion is a recess that is recessed upward from below.

Compared with the prior art, the utility model has the advantages that the gas stove capable of adjusting the combustion state is provided, the central hole of the adjusting piece is used for the installation after the top of the burner penetrates out, the top of the body is provided with the separating pieces at intervals along the circumferential direction, and the separating pieces can separate the secondary air supply channel, thereby providing the most appropriate secondary air supplement amount for the inner ring fire cover and the outer ring fire cover of the burner; in addition, the gas stove utilizes the adjusting piece to achieve the effect of reasonable proportion of secondary air, so that the inner ring and the outer ring can be fully combusted, and the gas stove is particularly suitable for an outer ring fire cover with two rings of fire and is beneficial to improving the heat efficiency of a combustor.

Drawings

Fig. 1 is a schematic structural view of an adjusting member in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a gas stove in an embodiment of the present invention (one of which omits a burner);

FIG. 3 is a schematic structural view of the adjusting member in the embodiment of the present invention in a state of reasonably distributing secondary air;

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

fig. 5 is a structural sectional view of the adjusting member in the state of unreasonable distribution of secondary air in the embodiment of the present invention.

Detailed Description

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

As shown in fig. 1 to 5, for the best embodiment of the present invention, the gas cooker capable of adjusting the combustion state in this embodiment includes an adjusting member 1, the adjusting member 1 has an annular body, the inner side edge 11 of the body is surrounded to form a central hole 111 for the top of the burner 5 to penetrate, and the top of the body is provided with separating members 2 at intervals along the circumferential direction. In order to realize that the partition 2 of the adjusting part 1 can partition the secondary air supply channel 55 of the burner 5, realize reasonable distribution of secondary air of side air intake of the inner and outer ring fire covers 53 and change fire area of the burner 5, the present embodiment preferably adopts the following scheme: the adjusting member 1 can move vertically relative to the burner 5, the dividing member 2 can be arranged in a manner of dividing the secondary air supply channel 55 into at least two independent spaces in the axial up-down direction or at least two independent spaces in the radial left-right direction, and from the viewpoint of simple installation, the dividing member 2 preferably comprises a horizontal dividing plate, and in order to better realize the dividing effect of the dividing plate, the inner side end 21 of the dividing plate is turned upwards.

The utility model discloses can adjust gas-cooker of combustion state still including having the panel 4 with the mounting hole 41 of central hole 111 alignment, in addition, the gas-cooker is including the combustor 5 that is located mounting hole 41, combustor 5 is including base 51, set up on base 51, and with base 51 between form the inner ring fire lid 52 of central air mixing chamber 521, also set up on base 51, be located the periphery of inner ring fire lid 52, and with the base 51 between form the outer ring fire lid 53 of outer ring air mixing chamber 531, form between central air mixing chamber 521 and the outer ring air mixing chamber 531 and supply gas chamber 54; the base 51 is also provided with a plurality of radial secondary air supplementing channels 55 which are used for communicating the air supplementing cavity 54 with the outside at intervals along the circumferential direction, the outer ring air mixing chamber 531 is provided with fire holes 532 along the circumferential direction on the outer wall surface, the secondary air supplementing channel 55 is internally provided with a separator 2, the separator 2 can divide the secondary air supplementing channel 55 into two relatively independent spaces which are respectively communicated with the fire hole 532 area of the outer ring air mixing chamber 531 and the outer wall area of the central air mixing chamber 521, wherein the separator 2 is arranged on the secondary air supplementing channel 55 and can divide the secondary air supplementing channel 55 into the relatively independent spaces, air forms the two independent air supplementing channels through the separation effect of the separator 2, the excess of the secondary air of the inner ring and the unreasonable distribution of the secondary air which is insufficient of the outer ring are effectively avoided, the secondary air is forcedly divided by the separator 2, so that the inner, especially, be fit for having outer ring fire lid 53 of two rings of fires, secondary air interact between the inner ring and the outer ring can be avoided on the one hand in the setting of this separator 2, on the other hand can also carry out the benefit of secondary air effectively to outer ring fire lid 53 one side that fire hole 532 is close to benefit air cavity 54 effectively, has the location accuracy, improves gas combustion efficiency, and the heat of gas mixing chamber can be recycled to separator 2 simultaneously, can preheat secondary air, helps improving combustor 5 thermal efficiency.

In order to facilitate the vertical movement of the adjusting member 1 relative to the burner 5, the gas burner further comprises a driving mechanism 6 which is located on the lower surface of the panel 4 and drives the adjusting member 1 to move vertically relative to the burner 5, wherein the driving mechanism 6 comprises a driving gear 63 coaxially connected with a valve rod 62 in a gas valve 61 for supplying gas to the gas stove, a driven gear 64 engaged with the driving gear 63, a circle of convex wall 641 corresponding to the linear adjustment of the gas valve 61 is convexly arranged on the upper surface of the driven gear 64, and a connecting rod 65 connected to the vertical part 12, the end of the connecting rod 65 is provided with a connecting part 651 capable of sliding relative to the convex wall 641, so as to adjust the gas outlet area of the fire outlet 532 of the outer ring fire cover 53 according to the amount of mixed gas required by the burner 5, and the following matching state is provided during the movement of the adjusting member 1 relative to the burner 5:

uncooked state: the partitioning member 2 abuts against the lower end surface of the secondary air replenishing passage 55, and the drive gear 63 and the driven gear 64 do not rotate relatively.

Cooking state: the driving gear 63 and the driven gear 64 rotate coaxially with the valve stem 62 in the gas valve 61, thus achieving the movement of both the partition 2 and the vertical portion 12 with the regulator 1; this cooking state has the inner and outer ring fire covers 53 burning in a state of reasonable distribution of secondary air:

when a low output is required, the partitioning member 2 is located at the middle of the secondary air supply passage, and in order to achieve that the high output and the low output of the partitioning member 2 in the burner 5 are linearly changed with the gas valve 61, the convex wall 641 includes a first convex wall 6411 and a second convex wall 6412 symmetrically disposed about the central axis of the driven gear 64, and both the first convex wall 6411 and the second convex wall 6412 are gradually protruded toward the center from the bottom to the top along the outer circumference of the driven gear 64, and then gradually extended downward from the center, and the connecting portion 651 is a concave recess that is concaved upward from the bottom to the top from the viewpoint of simple mounting structure.

The specific process is as follows, when the burner 5 works, the separator 2 of the adjusting structure can enable the driving gear 63 and the driven gear 64 to be meshed and rotated along with the linear change in the gas valve 61, the notch of the connecting rod 65 can slide relative to the driven gear 64, so that the adjusting piece 1 can vertically move relative to the burner 5, the separator 2 of the adjusting piece 1 can extend into the secondary air supplementing channel 55 of the burner 5, and in addition, the separator 2 can separate the secondary air supplementing channel 55 in the process, so that the most appropriate secondary air supplementing quantity can be given to the inner ring fire cover 53 and the outer ring fire cover 53 of the burner 5; in the final uncooked state, the partition 2 abuts against the lower end surface of the secondary air replenishing passage 55, and the driving gear 63 and the driven gear 64 do not rotate relatively.

Claims

1. A gas stove capable of adjusting a combustion state comprises a burner, wherein the burner (5) comprises:

a base (51);

the inner ring fire cover (52) is arranged on the base (51), and a central air mixing chamber (521) is formed between the inner ring fire cover and the base (51);

the outer ring fire cover (53) is also arranged on the base (51), is positioned at the periphery of the inner ring fire cover (52), and forms an outer ring air mixing chamber (531) with the base (51); an air supplement cavity (54) is formed between the central air mixing chamber (521) and the outer ring air mixing chamber (531); a plurality of radial secondary air supplementing channels (55) for communicating the air supplementing cavity (54) with the outside are arranged on the base (51) at intervals along the circumferential direction;

the method is characterized in that: still including regulating part (1), this regulating part (1) has and is annular body, the inboard border (11) of body enclose central hole (111) that the top that supplies combustor (5) to wear out, the top of body is equipped with separator (2) along circumference interval, be provided with in secondary tonifying qi passageway (55) separator (2), separator (2) can with secondary tonifying qi passageway (55) are separated into two relatively independent spaces, communicate respectively that the outer loop mixes the fire hole (532) region of gas chamber (531) with the outer wall region of central mixed gas chamber (521).

2. The gas range capable of adjusting a combustion state according to claim 1, wherein: the adjusting part (1) can move vertically relative to the burner (5).

3. The gas range capable of adjusting a combustion state according to claim 2, wherein: the separator (2) comprises a partition board which is a horizontal partition board.

4. The gas range capable of adjusting a combustion state according to claim 3, wherein: the inner side end (21) of the partition board is turned upwards.

5. The gas range capable of adjusting a combustion state according to any one of claims 1 to 4, wherein: also includes:

a face plate (4) having a mounting hole (41) aligned with the central hole (111).

6. The gas range capable of adjusting a combustion state according to claim 5, wherein: the burner is characterized by further comprising a driving mechanism (6) which is positioned on the lower surface of the panel (4) and used for driving the adjusting piece (1) to move in the vertical direction relative to the burner (5).

7. The gas range capable of adjusting a combustion state according to claim 6, wherein: the driving mechanism (6) comprises a driving gear (63) coaxially connected with a valve rod (62) in a gas valve (61) for supplying gas of a gas stove, a driven gear (64) meshed with the driving gear (63), a circle of convex wall (641) corresponding to linear adjustment of the gas valve (61) is convexly arranged on the upper surface of the driven gear (64), and a connecting rod (65) connected to the vertical part (12), and a connecting part (651) capable of sliding relative to the convex wall (641) is arranged at the tail end of the connecting rod (65).

8. The gas range capable of adjusting a combustion state according to claim 7, wherein: the convex wall (641) comprises a first convex wall (6411) and a second convex wall (6412) which are symmetrically arranged around the central axis of the driven gear (64), and the first convex wall (6411) and the second convex wall (6412) both gradually protrude from the bottom to the center along the periphery of the driven gear (64) and then gradually extend downwards from the center.

9. The gas range capable of adjusting a combustion state according to claim 8, wherein: the connecting portion (651) is a recess recessed from bottom to top.