CN110864291B

CN110864291B - Stove burner

Info

Publication number: CN110864291B
Application number: CN201910955216.6A
Authority: CN
Inventors: 邵海忠; 郑军妹; 张波
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2021-04-16
Anticipated expiration: 2039-10-09
Also published as: CN110864291A

Abstract

The invention relates to a stove burner, which comprises an injection pipe, a burner body and a burner body, wherein the injection pipe is vertically arranged and is internally provided with an injection passage; the nozzle is annular, and is connected to the upper part of the injection pipe; the fire cover is arranged on the base in a matching mode, a gas mixing chamber communicated with an injection passage in the injection pipe is formed between the fire cover and the base, and gaps are formed between the outer annular side edge and the inner annular side edge of the fire cover and the base respectively to form fire holes; the driving mechanism is in transmission connection with the injection pipe and can drive the injection pipe to rotate. When the stove burner provided by the invention is used for cooking, the injection pipe, the base and the fire cover are driven to synchronously rotate by the driving mechanism, so that injection and entrainment of secondary air by the nozzle to the fire hole can be improved. And the turbulence degree of flame can be improved, so that the flue gas disturbance is enhanced, and the heat efficiency is improved. Meanwhile, the dripping overflow liquid can be thrown out of the combustor by utilizing the centrifugal action generated by the rotation motion, so that the soup is prevented from being accumulated in the combustor to pollute and block fire holes, nozzles and the like.

Description

Stove burner

Technical Field

The invention relates to the technical field of cookers, in particular to a cooker burner.

Background

The existing stove burner has certain problems in the aspects of improving heat efficiency, improving injection performance and preventing blockage of a fire cover, so that the working efficiency of the stove burner is relatively low. Those skilled in the art are therefore dedicated to the improvement of these technical problems, but improvements to the hob burner structure are generally only possible for a single problem, with limited effectiveness of the improvement.

If the utility model discloses a chinese utility model patent "a novel cooking utensils combustor" that the bulletin number is CN204730199U (application number is 201520410970.9), the burner structure that wherein disclose then mainly is the structural improvement who goes on to the injection ability of combustor, this cooking utensils combustor, including the furnace end, outer loop gas draws the ejector tube, inner ring gas draws the ejector tube, outer loop fire lid and inner ring fire lid, the furnace end has outer loop cavity and inner ring cavity, be equipped with the flow distribution plate in the outer loop cavity, outer loop cavity bottom forms one section curved depressed part along the circumferencial direction, open one side of depressed part has the communicating air inlet with outer loop gas outlet, the opposite side of depressed part links up with one side of the non-depressed part in outer loop cavity bottom through the direction inclined plane, the flow distribution plate is located the top of depressed part and is opened there is the gas outlet in the position that corresponds to the direction inclined plane. The utility model discloses an effect of flow distribution plate is equivalent to the injection pipe distance extension that makes the outer loop, makes and draws the ability enhancement to, the outer loop gas can flow forward along the annular direction after the gas outlet flows through the direction inclined plane, can strengthen the mixture of air and gas, makes the gas distribute in the flow distribution plate top more evenly, thereby makes the fire hole give vent to anger evenly, the burning is more abundant, and then improves the combustion efficiency of combustor.

For example, the burner disclosed in the "built-in high efficiency burner" of the chinese utility model with the publication number CN201487958U (application number 200920190872.3) is mainly for improving the thermal efficiency of the burner.

Therefore, designing a structure capable of improving multiple functional effects of the burner at the same time and improving the using effect of the burner comprehensively is a difficult subject in the field.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a stove burner which can improve the air energy at the inlet of an injection pipe so as to improve the injection capacity of a nozzle; the fire hole can be prevented from being polluted by the overflowing liquid; secondary air supply can be increased; meanwhile, the turbulence degree of flame can be improved, so that the disturbance of the flue gas is enhanced, and the efficiency is improved.

The technical scheme adopted by the invention for solving the problems is as follows: a stove burner comprises

The ejection pipe is vertically arranged and is internally provided with an ejection channel;

the nozzle is provided with an inlet end of the injection pipe;

the method is characterized in that: also comprises

The base is annular and is connected to the upper part of the injection pipe;

the fire cover is arranged on the base in a matching mode, a gas mixing chamber communicated with an injection passage in the injection pipe is formed between the fire cover and the base, and gaps are formed between the outer annular side edge and the inner annular side edge of the fire cover and the base respectively to form fire holes;

the driving mechanism is in transmission connection with the injection pipe and can drive the injection pipe to rotate.

Simple structure just avoids occupation space too big, draw and penetrate the annular center setting that the pipe corresponds to the base, draw and penetrate and be connected through the connecting piece between pipe upper end and the base, have the intercommunication gas mixing chamber and draw the interface channel who penetrates the passageway in the connecting piece.

In order to guide the overflowing liquid entering the inner space area of the fire cover conveniently and facilitate the entrainment of secondary air to supplement inner ring flame, a guide vane is connected to the outer wall of the injection pipe corresponding to the space in the inner ring wall of the base, and the guide vane gradually inclines downwards from inside to outside along the radial direction.

The structure is more firm ground, the connecting piece includes that at least two just set up along drawing the circumference interval of penetrating the pipe, is provided with one between every two adjacent connecting pieces the water conservancy diversion piece.

In order to guide the overflowing liquid on the fire cover, a downward-concave overflowing liquid groove is formed in the upper surface of the fire cover along the circumferential direction, and notches which are connected with the overflowing liquid groove and used for guiding the flowing liquid are formed in the outer ring wall of the overflowing liquid groove and the outer ring wall of the base in a communicated mode.

Preferably, a fire transfer piece for transferring fire is arranged in the base along the radial direction, a fire transfer groove communicated with the gas mixing chamber is formed in the fire transfer piece, and the fire cover is arranged on the base in a manner of being tightly attached to the fire transfer piece along the circumferential direction.

In order to slow the air outlet speed and further avoid the flame-off condition, the height of the fire transfer groove is gradually increased along the radial direction.

Preferably, the driving mechanism comprises a motor, and a driving wheel which are meshed with each other, the driving wheel is in transmission connection with the motor, and the driving wheel is fixedly sleeved outside the injection pipe.

In order to guarantee the stability of drawing the pipe axis of rotation to more stable and nozzle cooperation work, the drive wheel supports and sets up on the support, the support includes the backup pad and connects the supporting legs in the backup pad lower part, have the through-hole that supplies to draw the pipe to pass in the backup pad, and the through-hole perisporium with draw and have the space between the outside of penetrating the pipe, be provided with annular first recess on the upper surface of backup pad, it is provided with the second recess to correspond first recess on the lower surface of drive wheel, it is equipped with the ball to press from both sides between first recess and the second recess.

The structure is simple, the inner ring wall and the outer ring wall of the base are respectively provided with a lug extending upwards along the circumferential direction at intervals, and the fire cover is supported and arranged on the lug so that gaps forming fire holes are formed between the outer ring side edge and the inner ring side edge of the fire cover and the base respectively.

Compared with the prior art, the invention has the advantages that: when the stove burner provided by the invention is used for cooking, the injection pipe, the base and the fire cover are driven to synchronously rotate by the driving mechanism, and the rotation state can improve injection and entrainment of secondary air of the nozzle to the fire hole. And the turbulence degree of flame can be improved, so that the flue gas disturbance is enhanced, and the heat efficiency is improved. Meanwhile, the dripping overflow liquid can be thrown out of the combustor by utilizing the centrifugal action generated by the rotation motion, so that the soup is prevented from being accumulated in the combustor to pollute and block fire holes, nozzles and the like.

Drawings

Fig. 1 is a perspective view of a cooker burner in an embodiment of the invention.

Fig. 2 is an exploded perspective view of a cooker burner in an embodiment of the invention.

Fig. 3 is a sectional view of a cooktop burner in an embodiment of the invention.

FIG. 4 is a cross-sectional view of another angle of a cooktop burner in an embodiment of the invention.

Detailed Description

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

As shown in fig. 1 to 4, the stove burner in the present embodiment includes an injection pipe 1, a nozzle 2, a base 3, a fire cover 4, and a driving mechanism 5. The stove burner is mounted on a panel for use, and a chassis is usually arranged below the panel to form a support for the stove burner.

The injection pipe 1 vertically penetrates through the panel, so that the upper part of the injection pipe 1 is positioned above the panel, the lower part of the injection pipe 1 is positioned below the panel, and an injection passage 11 which is communicated up and down is arranged in the injection pipe 1. The inlet of the injection pipe 1 is positioned at the lower end, and the nozzle 2 is provided with the inlet end of the injection pipe 1.

The base 3 is annular, and in this embodiment the radial cross-section of the base 3 is U-shaped, i.e. the base 3 has an inner annular wall and an outer annular wall. The base 3 is connected to the upper part of the injection pipe 1 through a connecting piece 6.

Specifically, draw and penetrate the setting of pipe 1 annular center corresponding to base 3, draw and penetrate and be connected through connecting piece 6 between pipe 1 upper end and the base 3, in order to guarantee the steadiness of connecting, can set up two connecting pieces 6 at least, be provided with three connecting piece 6 in this embodiment, connecting piece 6 is the fan-shaped that the angle is less, these connecting pieces 6 set up along drawing the even interval distribution of circumference of penetrating pipe 1, and connecting piece 6 extends along radial level, the one end of connecting piece 6 is connected with the outer wall of penetrating pipe 1, the other end of connecting piece 6 is connected with the interior rampart of base 3, so make this base 3 with draw the overall structure simple that penetrates pipe 1 and avoid occupation space too big. In this implementation, draw and penetrate pipe 1, base 3 and connecting piece 6 and set up to integrative piece.

The connecting piece 6 is provided with a connecting channel 61 therein, and the connecting channel 61 is respectively communicated with the injection channel 11 in the injection pipe 1 and the space in the base 3, thereby realizing the communication between the injection channel 11 and the gas mixing chamber 100 described below.

The base 3 is provided with a fire transfer element 31 for transferring fire along the radial direction, and the fire transfer element 31 is provided with a fire transfer groove 311 communicated with the gas mixing chamber 100. Specifically, the fire transfer member 31 in this embodiment is composed of two sheet bodies that are arranged in parallel and at an interval, two ends of the two sheet bodies are connected to the upper portion of the inner ring wall and the outer ring wall of the base 3, respectively, and the upper end edge of the fire transfer member 31 is slightly higher than the upper end edge of the base 3, the lower edge of the sheet body is substantially horizontal, and the upper edge of the sheet body is inclined upward gradually along the radial direction, so that the height of the fire transfer groove 311 is gradually increased along the radial direction, that is, the fire transfer groove 311 is shallow and deep inside, and during operation, the air outlet speed in the fire transfer groove 311 is gradually slow along the fire transfer direction (from inside to outside), which is beneficial to the stability of fire transfer. The structure of the fire transfer slot 311 can effectively avoid the flame-off condition in the fire transfer process.

The fire lid 4 is then matchd and is set up on base 3, is provided with two fire transmission grooves 311 in this embodiment, and fire lid 4 pastes tightly fire transmission piece 31 along circumference and sets up on base 3, so make the fire lid 4 in this embodiment then be two half-circular arcs. Fire lid 4 can be dismantled and set up, so conveniently washs biography fire groove 311, can effectively avoid passing the jam of fire groove 311.

After being placed on the base 3, the fire cover 4 forms a gas mixing chamber 100 communicated with an injection passage 11 in the injection pipe 1 with the base 3, and gaps are formed between the outer annular side edge and the inner annular side edge of the fire cover 4 and the base 3 respectively to form fire holes 200. Specifically, the inner and outer annular walls of the base 3 are provided with protrusions 32 extending upward at intervals in the circumferential direction, and the fire cover 4 is supported on the protrusions 32 such that gaps constituting the fire holes 200 are formed between the outer and inner annular side edges of the fire cover 4 and the base 3, respectively. The fire holes 200 are formed in a circumferential seam shape, so that the whole flame is connected into one piece, the mutual flame stabilizing effect is improved, and the situation that the base 3 and the fire cover 4 are away from the flame in the process of performing the following rotation action is avoided. In the case of a conventional fire lid 4 of the channel type, the channel width is preferably 1.8 to 2.0 mm. Because the injection is improved after the rotary motion relative to a static combustor, the flame stabilization is not facilitated, and the seam width is larger than that of a static combustor1.8mm, the resistance that the gas came out is little, and air velocity is too big, is unfavorable for steady flame, and the seam width is too narrow, and the area of fire hole 200 is not enough, and flame can lengthen, and rotatory back flame can waft, is difficult for the stable combustion. Aiming at the rotating movement of the fire cover 4 in the invention, the seam width of the fire hole 200 is preferably designed to be 1.5-1.8mm, so that the resistance is increased by reducing the seam width, and the air outlet speed can be reduced to improve the flame stabilization. The intensity of the fire hole 200 (total load of the burner/total area of the fire hole 200) of the prior atmospheric burner is 5800-8700KW/m³Since the injection is improved after the rotational movement, and the flame separation is intensified, the intensity of the fire hole 200 in the embodiment is recommended to be 10000-15000KW/m³。

The driving mechanism 5 is in transmission connection with the injection pipe 1, and then can drive the injection pipe 1, the base 3, the connecting piece 6 and the fire cover 4 to rotate. The driving mechanism 5 comprises a motor 51, a driving wheel 52 and a driving wheel 53, wherein the driving wheel 52 and the driving wheel 53 are meshed with each other, the driving wheel 52 is in transmission connection with the motor 51, and the driving wheel 53 is fixedly sleeved outside the injection pipe 1.

The transmission wheel 53 is supported and arranged on the support 8, the support 8 comprises a support plate 81 and supporting legs 82 connected to the lower portion of the support plate 81, the supporting legs 82 are fixedly arranged on a chassis below the panel, a through hole 811 is formed in the support plate 81 and used for allowing the injection pipe 1 to penetrate through, a gap is formed between the peripheral wall of the through hole 811 and the outside of the injection pipe 1, an annular first groove 812 is formed in the upper surface of the support plate 81, a second groove 531 is formed in the lower surface of the transmission wheel 53 corresponding to the first groove 812, the first groove 812 and the second groove 531 are both semicircular grooves, and balls 83 are clamped between the first groove 812 and the second groove 531. The ball 83 makes a gap of 1-2mm between the upper surface of the support plate 81 and the lower surface of the transmission wheel 53, and the resistance in the rotation process is reduced by using the low friction characteristic of the steel ball, so that the smoothness of rotation is ensured.

So motor 51 during operation drives drive wheel 52 and rotates, and the corresponding meshing of drive wheel 53 rotates, and under the effect of support 8, radial movement can not take place for drive wheel 53, has guaranteed to draw and has penetrated the stability of 1 axis of rotation of pipe, and the nozzle 2 cooperation work is more stable.

In the process that the driving mechanism 5 drives the injection pipe 1 to rotate, the disturbance of air at the inlet of the injection pipe 1 can be increased, the air near the injection pipe 1 is driven, the energy of the air is improved, the injection capacity is improved, and the smoke is reduced by 150 PPM. Meanwhile, the rotary motion of the injection pipe 1 can improve the mixing uniformity of the mixed gas in the pipe. Meanwhile, along with the synchronous rotation of the base 3 and the fire cover 4, the turbulence degree of flame can be improved, so that the disturbance of flue gas is enhanced, the heat transfer coefficient of the surface of the flue gas to the bottom of a pot is enhanced, the heat exchange is enhanced, the heat efficiency is improved, and the heat efficiency can be improved by 5-8%.

In order to guide the overflow liquid flowing onto the fire cover 4 in the working process, a downward-concave overflow liquid groove 41 is arranged on the upper surface of the fire cover 4 along the circumferential direction, and a notch 42 which is connected with the overflow liquid groove 41 and used for guiding the flow is arranged on the outer ring wall of the overflow liquid groove 41 and the outer ring wall of the base 3 in a communicating manner. Conveniently, the notch 42 is disposed corresponding to the position of the bump 32, so as to conveniently realize the communication between the notch 42 and the overflow tank 41, and prevent the overflow from flowing into the base 3 when passing through the notch 42. The bottom surface of the notch 42 is flush with the bottom surface of the overflow trough 41. When the fire lid 4 is kept in operation, the overflow liquid can be flowed into the overflow liquid groove 41, and simultaneously, in the process that the fire lid 4 rotates along with the injection pipe 1, the overflow liquid in the overflow liquid groove 41 can be discharged through the gap 42 in a centrifugal mode, so that the overflow liquid is prevented from being accumulated in the overflow liquid groove 41.

The outer wall of the injection pipe 1 is connected with a flow deflector 7 corresponding to the space in the inner annular wall of the base 3, and the flow deflector 7 gradually inclines downwards along the radial direction from inside to outside, so that a gap is formed between the flow deflector 7 and the base 3, and a secondary air channel is further formed. In this embodiment, one flow deflector 7 is disposed between every two adjacent connecting members 6 to cover the space region in the middle of the base 3, so as to prevent the overflowing liquid from falling from these spaces and blocking the nozzle 2. In this embodiment, the root of the guide vanes 7 connected to the injection pipe 1 is butted with the connecting piece 6 in the circumferential direction, so that the overflowing liquid can be further prevented from falling to affect the nozzle 2. Along with the rotation of the injection pipe 1, the flow deflector 7 also synchronously rotates, and overflowing liquid falling on the flow deflector 7 is thrown out under the centrifugal action, so that the overflowing liquid flowing into the internal space region of the fire cover 4 is guided. Meanwhile, in the rotating process, the guide vanes 7 can suck secondary air from the secondary air channel to supplement inner ring flame, so that the full combustion of fuel gas is facilitated.

Compared with the stove burner in the prior art, the stove burner can simultaneously realize multiple functions, can play roles in injection capacity, heat efficiency, fire transfer, liquid containing, blockage prevention, liquid overflow prevention and the like, and is simple in structure and convenient to assemble.

Claims

1. A stove burner comprises

The injection pipe (1) is vertically arranged and is internally provided with an injection passage (11);

the nozzle (2) is arranged at the inlet end of the injection pipe (1);

the method is characterized in that: also comprises

The base (3) is annular and is connected to the upper part of the injection pipe (1);

the fire cover (4) is arranged on the base (3) in a matching mode, a gas mixing chamber (100) communicated with an injection passage (11) in the injection pipe (1) is formed between the fire cover and the base (3), and gaps are formed between the outer ring side edge and the inner ring side edge of the fire cover (4) and the base (3) respectively to form fire holes (200);

the driving mechanism (5) is in transmission connection with the injection pipe (1) and can drive the injection pipe (1), the base (3) and the fire cover (4) to rotate.

2. The cooktop burner of claim 1, wherein: draw and penetrate pipe (1) and set up corresponding to the annular center of base (3), draw and penetrate and be connected through connecting piece (6) between pipe (1) upper end and the base (3), have in connecting piece (6) and communicate gas mixing chamber (100) and draw linkage channel (61) of penetrating passageway (11).

3. The cooktop burner of claim 2, wherein: the outer wall of the injection pipe (1) is connected with a flow deflector (7) corresponding to the space in the inner annular wall of the base (3), and the flow deflector (7) gradually inclines downwards from inside to outside along the radial direction.

4. The cooktop burner of claim 3, wherein: the connecting pieces (6) comprise at least two connecting pieces and are arranged at intervals along the circumferential direction of the injection pipe (1), and one flow deflector (7) is arranged between every two adjacent connecting pieces (6).

5. The cooktop burner of any of claims 1 to 4, wherein: a concave overflow tank (41) is arranged on the upper surface of the fire cover (4) along the circumferential direction, and a notch (42) which is connected with the overflow tank (41) and used for guiding flow is communicated and arranged on the outer ring wall of the overflow tank (41) and the outer ring wall of the base (3).

6. The cooktop burner of any of claims 1 to 4, wherein: the base (3) is internally provided with a fire transfer piece (31) for transferring fire along the radial direction, the fire transfer piece (31) is provided with a fire transfer groove (311) communicated with the gas mixing chamber (100), and the fire cover (4) is arranged on the base (3) along the circumferential direction and tightly attached to the fire transfer piece (31).

7. The cooktop burner of claim 6, wherein: the height of the fire transfer grooves (311) gradually increases along the radial direction.

8. The cooktop burner of any of claims 1 to 4, wherein: the driving mechanism (5) comprises a motor (51), a driving wheel (52) and a driving wheel (53), wherein the driving wheel (52) and the driving wheel (53) are meshed with each other, the driving wheel (52) is in transmission connection with the motor (51), and the driving wheel (53) is fixedly sleeved outside the injection pipe (1).

9. The cooktop burner of claim 8, wherein: the transmission wheel (53) is supported and arranged on the support (8), the support (8) comprises a support plate (81) and a support leg (82) connected to the lower portion of the support plate (81), a through hole (811) for the injection pipe (1) to penetrate through is formed in the support plate (81), a gap is formed between the peripheral wall of the through hole (811) and the outside of the injection pipe (1), an annular first groove (812) is formed in the upper surface of the support plate (81), a second groove (531) is formed in the lower surface of the transmission wheel (53) corresponding to the first groove (812), and a ball (83) is clamped between the first groove (812) and the second groove (531).

10. The cooktop burner of any of claims 1 to 4, wherein: the inner ring wall and the outer ring wall of the base (3) are respectively provided with a lug (32) extending upwards at intervals along the circumferential direction, and the fire cover (4) is supported on the lugs (32) so that gaps forming fire holes (200) are formed between the outer ring side edge and the inner ring side edge of the fire cover (4) and the base (3) respectively.