CN112050211A

CN112050211A - Gas kitchen ranges

Info

Publication number: CN112050211A
Application number: CN202011014369.XA
Authority: CN
Inventors: 杨杰; 陈迪龙; 傅峻涛
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2020-12-08
Anticipated expiration: 2040-09-24
Also published as: CN112050211B

Abstract

The invention discloses a gas cooker which comprises an inner ring burner and an outer ring burner which are arranged concentrically, wherein the outer ring burner comprises a fire transfer channel and a gas mixing chamber, the fire transfer channel penetrates through the outer ring burner and extends from the inner side surface to the outer side surface of the outer ring burner, the fire transfer channel comprises a buffer cavity and a pre-combustion cavity which are sequentially arranged along the fire transfer direction and are communicated with each other, and the buffer cavity and the pre-combustion cavity are respectively communicated with the gas mixing chamber. This gas cooking utensils, through set gradually two cavities that have different gas density in passing a fire the passageway, make the flame of inner ring can ignite the buffer chamber that gas density is lower earlier, make pass a fire flame transmit to the intercommunication department of buffer chamber and precombustion chamber relatively fast, reuse this pass a fire flame to go to ignite the precombustion chamber that gas density is higher relatively, make the combustion that can be more of a specified duration of pass a fire flame in precombustion chamber, improve the probability that the fire hole of outer loop combustor was successfully ignited.

Description

Gas kitchen ranges

Technical Field

The invention relates to a gas cooker.

Background

In the prior art, for example, chinese patent application No. 201920717483.5 discloses a burner fire cover for a gas stove, which delivers gas to a fire channel through a gas mixing chamber, and transfers fire in the fire channel by using a gas detonation method, so as to transfer flame on an inner ring burner to an outer side surface of an outer ring burner.

Wherein, when the gas density in passing the fire passageway is lower relatively, the gas in passing the fire passageway can be ignited fast to the flame on the inner ring, passes the fire fast, but the duration of flame is short, and consequently, the flame that passes the fire extinguishes fast easily, has the possibility that outer loop combustor surface fire hole can not ignite.

And when the gas density in passing the fire passageway is higher relatively, flame on the inner ring is after igniting the gas in passing the fire passageway, passes fire flame and can be more continuous burning relatively, but passes fire speed slowly, leads to passing fire to have delay, uses and experiences the sense not good.

Therefore, when the outer ring burner is supplied with gas, how to make the density of the gas in the fire transfer passage be in a reasonable range is that: the high-speed flame transfer cannot be caused due to the fact that the gas density is too low, but the flame transfer flame is not easy to ignite fire holes, and the high-success-rate flame transfer cannot be caused due to the fact that the gas density is too high, but the flame transfer speed is slow, so that the high-speed flame transfer device becomes a research focus of design research personnel in the field of combustion cooking utensils.

Disclosure of Invention

The invention aims to overcome the defects that the gas cooker in the prior art is low in fire transmission efficiency or easy to fail in fire transmission, and provides a gas cooker.

The invention solves the technical problems through the following technical scheme:

a gas cooker comprises an inner ring burner and an outer ring burner which are arranged concentrically, wherein the outer ring burner comprises a fire transfer channel and a gas mixing chamber, the fire transfer channel penetrates through the outer ring burner and extends from the inner side surface to the outer side surface of the outer ring burner, the fire transfer channel comprises a buffer cavity and a pre-combustion cavity which are sequentially arranged along the fire transfer direction and are communicated with each other, and the buffer cavity and the pre-combustion cavity are respectively communicated with the gas mixing chamber;

when gas exists in the gas mixing chamber, the density of the gas in the buffer cavity is smaller than that of the gas in the pre-combustion cavity.

This gas cooking utensils, through set gradually two cavities that have different gas density in passing a fire the passageway, make the flame of inner ring can ignite the buffer chamber that gas density is lower earlier, make and pass a fire flame can transmit the intercommunication department to buffer chamber and precombustion chamber relatively fast, recycle this and pass a fire flame and ignite the precombustion chamber that gas density is higher relatively, make and pass a fire flame can be in the precombustion intracavity for a relatively longer burning, improve the probability that the fire hole of outer loop combustor was successfully ignited.

This gas cooking utensils, through the different characteristics that the cavity that utilizes different gas density respectively has when being lighted, through setting up two cavity that communicate in proper order, have different density, make the passageway of passing a fire can guarantee the success rate of passing a fire when guaranteeing to pass a fire speed.

Preferably, the length of the buffer chamber extending in the fire transfer direction in the fire transfer passage is greater than the length of the prechamber extending in the fire transfer direction in the fire transfer passage.

Through this structure setting, the cushion chamber that makes can the fast combustion, pass fiery fast occupies longer length in whole fire passing channel to further improve the flame transfer speed of whole fire passing channel.

Preferably, the fire outlet of the precombustion chamber communicated with the outer side surface comprises:

the first opening is arranged between the fire holes of the outer ring burner along the horizontal direction;

and the second opening is arranged below the first opening, the second opening extends along the horizontal direction, and two ends of the second opening respectively extend to the positions, close to the first opening, below the fire holes of the outer ring burner.

Through the structural arrangement, the first opening and the second opening can mutually stabilize flame and mutually transfer fire. The second opening is a long groove structure extending horizontally and can play a flame stabilizing role for the fire hole and the first opening of the outer ring combustor positioned above.

Preferably, the fire outlet further comprises a third opening, the third opening is disposed below the second opening, the width of the third opening is smaller than that of the second opening, and the height of the third opening is greater than that of the second opening.

Through the structure, the third opening is arranged below the second opening, so that the second opening becomes a blocking groove of the third opening when the overflowing liquid is generated, and the overflowing liquid is prevented from entering the fire transfer channel or blocking a gas outlet in the gas mixing chamber. The height of the third opening is greater than the height of the second opening, so that the overflowing liquid in the fire transfer channel can flow out of the third opening.

Preferably, the number of the first openings is multiple, and the multiple first openings are sequentially arranged between the fire holes of the outer ring burner along the horizontal direction.

Through this structure setting, improve first open-ended steady flame effect and to the flame transmission effect of the fire hole that is located both sides.

Preferably, the opening of the precombustion chamber communicated with the buffer chamber and the fire outlet of the precombustion chamber communicated with the outer side surface are arranged in a staggered mode in the fire transfer direction.

Through this structural arrangement for when the biography fire flame that the precombustion chamber was lighted is transmitted to fire outlet department from the opening, the transmission speed of flame can not be too fast at fire outlet department, prevents to form risks such as detonating in fire outlet department.

Preferably, the opening of the precombustion chamber communicated with the buffer chamber and the fire inlet of the buffer chamber communicated with the inner side surface are arranged in a staggered mode in the fire transmission direction.

Through this structure setting for when the buffer chamber was transmitted to the opening part by the biography fire flame that the inner ring was lighted from going into the burner, flame can not be too fast at the transfer rate of opening part, prevents to form risks such as detonating at the opening part.

Preferably, the opening of the precombustion chamber communicated with the buffer chamber extends to the lower surface of the fire transfer passage.

Through the structural arrangement, the overflowing liquid in the precombustion cavity or the buffer cavity can flow to the other cavity through the opening, so that the overflowing liquid is further discharged from the fire transfer passage.

Preferably, the height of the lower surface of the fire transfer passage gradually decreases in the fire transfer direction.

Through this structural arrangement, improve the velocity of flow of overflow in passing a fire passageway to improve the efficiency that the overflow discharged and passed a fire passageway.

Preferably, the gas mixing chamber communicates to the gas channel of the buffer chamber and includes a first gas outlet, and the first gas outlet is arranged toward the inner side surface.

Through this structure setting, through making first gas outlet set up towards the inside surface orientation, improve the gas volume that the cushion chamber is close to inside surface department to when the gas is let in the gas mixing chamber of outer ring combustor, effectively guarantee the gas volume that the cushion chamber is close to inside surface department, can ignite the gas of cushion chamber fast with the flame of inner ring combustor.

Preferably, the gas mixing chamber communicates to the gas channel of the buffer chamber and further includes a second gas outlet, the second gas outlet is perpendicular to the fire transmission direction, and the second gas outlet is arranged at the rear side of the first gas outlet along the fire transmission direction.

Through this structure setting, set up the second gas outlet and carry the gas towards the cushion chamber perpendicularly to pass the fire direction to reduce the gas flow velocity in the cushion chamber, be favorable to the steady flame.

Preferably, the outer ring combustor further comprises a base and a fire cover, the upper portion of the base is open, the fire cover is arranged at the open position of the base, and the fire cover and the base enclose the gas mixing chamber together.

Through this structure setting, form the air mixing chamber through the mode that the fire lid was covered on the base, be convenient for design and processing. Meanwhile, when the fire cover is taken down, the air mixing chamber can be exposed, and later maintenance is facilitated.

Preferably, the fire cover and the base together enclose the fire transfer channel.

Through this structure setting, cover the mode formation of on the base through the fire and pass the fire passageway, be convenient for design and processing. Meanwhile, a gas channel structure communicated with the gas mixing chamber to the fire transfer channel is conveniently processed.

Preferably, the cross-sectional area of the gas channel communicated with the buffer cavity from the gas mixing chamber is smaller than that of the gas channel communicated with the precombustion cavity from the gas mixing chamber.

Through this structural setting, through the mode of the cross sectional area of the gas passageway of adjustment intercommunication to cushion chamber and precombustion chamber, when making in the gas mixing chamber let in the gas, the gas density in the cushion chamber can be less than the gas density in the precombustion chamber.

Preferably, the chamber volume of the buffer chamber is larger than the chamber volume of the precombustion chamber.

Through the structure, when gas is introduced into the gas mixing chamber, the density of the gas in the buffer chamber can be smaller than that of the gas in the pre-combustion chamber.

The positive progress effects of the invention are as follows:

this gas cooking utensils, through set gradually two cavities that have different gas density in passing a fire the passageway, make the flame of inner ring can ignite the buffer chamber that gas density is lower earlier, make pass a fire flame can transmit the intercommunication department to buffer chamber and precombustion chamber relatively fast, reuse this pass a fire flame to go to ignite the precombustion chamber that gas density is higher relatively, make the combustion that can be more of a specified duration of pass a fire flame in precombustion chamber, improve the probability that the fire hole of outer loop combustor was successfully ignited.

Drawings

Fig. 1 is a schematic structural view of a gas cooker according to an embodiment of the present invention.

Fig. 2 is a schematic view of an internal structure of a gas cooker according to an embodiment of the present invention.

Fig. 3 is an exploded view of an outer ring burner according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram (one) of a fire cover according to an embodiment of the present invention.

Fig. 5 is a partially enlarged view of a portion B in fig. 4.

Fig. 6 is a schematic structural view (ii) of the fire cover according to an embodiment of the invention.

Description of reference numerals:

outer ring burner 1

Fire transfer channel 11

Buffer chamber 111

Fire inlet 1111

First air outlet 1112

Second air outlet 1113

Pre-chamber 112

A fire outlet 1121, a first opening 1122, a second opening 1123, a third opening 1124

Opening 1125

Gas mixing chamber 12

Fire hole 13

Base 14

Fire lid 15

Inner ring burner 2

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

The invention provides a gas cooker, which comprises an inner ring burner 2 and an outer ring burner 1 which are concentrically arranged as shown in figure 1. A flame propagation channel 11 is provided inside the outer ring combustor 1, and this flame propagation channel 11 penetrates the outer ring combustor 1 in the horizontal direction and extends from the inner side surface 1a to the outer side surface 1b of the outer ring combustor 1. The gas mixing chamber 12 in the outer ring combustor 1 is communicated with the fire transfer channel 11 so as to convey the gas to the fire transfer channel 11 when the gas is introduced into the gas mixing chamber 12.

As shown in fig. 2 and 3, the outer ring burner 1 further includes a base 14 and a fire cover 15, an upper portion of the base 14 is opened, and the fire cover 15 is covered at the opening of the base 14. The fire cover 15 and the base 14 together enclose the gas mixing chamber 12 and the fire transfer channel 11. Through the structural arrangement, the gas mixing chamber 12 and the fire transfer channel 11 are formed in a mode that the fire cover 15 covers the base 14, and design and processing are facilitated. Meanwhile, when the fire cover 15 is taken down, the air mixing chamber 12 can be exposed, and later maintenance is facilitated.

In the present embodiment, as shown in fig. 2 and 4, the fire transfer passage 11 is mainly formed in the fire cover 15, wherein the fire transfer passage 11 includes a buffer chamber 111 and a prechamber 112 which are arranged in this order along the fire transfer direction a and communicate with each other, the buffer chamber 111 is arranged near the inner side surface 1a, and the prechamber 112 is arranged near the outer side surface 1 b. The buffer cavity 111 and the precombustion cavity 112 are respectively communicated to the gas mixing chamber 12, and when gas is introduced into the gas mixing chamber 12, the density of the gas in the buffer cavity 111 is smaller than that of the gas in the precombustion cavity 112.

This gas cooking utensils, through set gradually two cavities that have different gas density in passing fire passageway 11, make the flame of inner ring can ignite the buffer chamber 111 that gas density is lower earlier, make pass fire flame transmit buffer chamber 111 and precombustion chamber 112's intercommunication department relatively fast, reuse this pass fire flame to ignite the precombustion chamber 112 that gas density is higher relatively, make the combustion that passes fire flame can be more for a long time relatively in precombustion chamber 112, improve the probability that outer ring combustor 1's fire hole 13 was successfully lighted.

This gas cooking utensils, through the different characteristics that the cavity that utilizes different gas density respectively has when being lighted, through setting up two cavity that communicate in proper order, have different density, make and pass fire passageway 11 can guarantee to pass fire success rate when guaranteeing to pass fire speed.

In the embodiment of making the density of the gas in the buffer chamber 111 smaller than the density of the gas in the prechamber 112 when the gas is introduced into the gas mixing chamber 12, as in this embodiment, the cross-sectional area of the gas passage communicating the gas mixing chamber 12 to the buffer chamber 111 is smaller than the cross-sectional area of the gas passage communicating the gas mixing chamber 12 to the prechamber 112, so that the density of the gas in the buffer chamber 111 can be smaller than the density of the gas in the prechamber 112 when the gas is introduced into the gas mixing chamber 12 by adjusting the difference between the cross-sectional areas of the gas passages communicating the buffer chamber 111 and the prechamber 112. Meanwhile, the chamber volume of the buffer cavity 111 can be made larger than that of the precombustion cavity 112, so that the density of the fuel gas in the buffer cavity 111 can be smaller than that in the precombustion cavity 112 under the condition that the same flow of fuel gas is introduced into the chamber. Of course, other embodiments in the prior art that can make the gas density of one chamber communicated to the gas mixing chamber 12 smaller than that of another chamber can also be used in the fire transfer channel 11 of the gas cooker to obtain the same effect.

In this embodiment, as shown in fig. 5, the gas channel connecting the gas mixing chamber 12 to the buffer chamber 111 includes a first gas outlet 1112 and a second gas outlet 1113. Wherein the first outlet port 1112 is disposed toward the direction of the inner side surface 1a of the outer ring combustor 1. Through making first gas outlet 1112 set up towards inside surface 1a direction, improve the gas volume that buffer chamber 111 is close to inside surface 1a department to when gas is let in the gas mixing chamber 12 of outer ring combustor 1, effectively guarantee the gas volume that buffer chamber 111 is close to inside surface 1a department, so as to ensure that the flame of inner ring combustor 2 can ignite the gas in buffer chamber 111 fast.

The second gas outlet 1113 is perpendicular to the flame propagation direction a, and the gas outlet faces downward, so that the flow speed of the gas input from the second gas outlet 1113 into the buffer cavity 111 can be effectively reduced, flame stabilization is facilitated, and the flame propagation flame can be stably combusted. In addition, in this embodiment, the second air outlet 1113 is also provided in pairs like the first air outlet 1112, and the two gas flows of the second air outlet 1113 collide with each other, so that the outlet velocity can be further reduced.

Further, as shown in fig. 2, the length L of the buffer chamber 111 extending in the fire transfer direction a in the fire transfer passage 11₁Is greater than the length L of the prechamber 112 extending in the fire direction A in the fire channel 11₂. With the structure, the buffer cavity 111 capable of fast combustion and fast fire transfer can occupy a relatively long length in the whole fire transfer channel 11, so that the flame transfer speed of the whole fire transfer channel 11 is further improved, and the respective advantages of the buffer cavity 111 and the pre-combustion cavity 112 are better exerted.

As shown in fig. 4 and 5, the flame outlet 1121, which is communicated to the outer side surface 1b of the outer ring combustor 1, of the prechamber 112 includes:

first openings 1122, the first openings 1122 being provided between the fire holes 13 of the outer ring burner 1 in the horizontal direction; a second opening 1123, the second opening 1123 being disposed below the first opening 1122, the second opening 1123 extending in the horizontal direction, and both ends thereof extending to positions below the fire holes 13 of the outer ring burner 1 adjacent to the first opening 1122, respectively. With this arrangement, the first opening 1122 and the second opening 1123 are stabilized and ignited with each other. The second opening 1123 is a horizontally extending elongated slot structure, and can provide flame holding function for the fire hole 13 and the first opening 1122 of the outer ring burner 1 located above.

In the present embodiment, there are three first openings 1122, and the three first openings 1122 are sequentially disposed between two fire holes 13 of the outer burner 1 along a horizontal direction to improve a flame stabilizing effect of the first openings 1122 and a flame transfer effect to the fire holes 13 located at both sides.

Further, the fire outlet 1121 further includes a third opening 1124, the third opening 1124 is disposed below the second opening 1123, the width of the third opening 1124 is smaller than the width of the second opening 1123, and the height of the third opening 1124 is greater than the height of the second opening 1123. By disposing the third opening 1124 below the second opening 1123, the second opening 1123 becomes a blocking groove for the third opening 1124 when the overflow is generated, and the overflow is prevented from entering the fire transfer passage 11 or blocking the gas outlet in the gas mixing chamber 12. The height of the third opening 1124 is greater than that of the second opening 1123 so that the overflowing liquid located in the fire transmitting passage 11 can flow out therefrom.

As shown in fig. 5, the opening 1125 of the prechamber 112 communicating to the buffer chamber 111 and the fire outlet 1121 of the prechamber 112 communicating to the outer surface 1b are arranged in a staggered manner in the fire transfer direction a, and by this arrangement, when the fire transfer flame ignited in the prechamber 112 is transferred from the opening 1125 to the fire outlet 1121, the transfer speed of the flame at the fire outlet 1121 is not too high, and the risk of forming detonating or the like at the fire outlet 1121 is prevented. For the same reason, the opening 1125 through which the prechamber 112 communicates to the buffer chamber 111 and the fire inlet 1111 through which the buffer chamber 111 communicates to the inner side surface 1a are also arranged offset in the fire propagation direction a.

In addition, in the present embodiment, both the opening 1125 connecting the prechamber 112 to the buffer chamber 111 and the fire inlet 1111 or the fire outlet 1121 (third opening 1124) extend downward to the lower surface 11a of the fire transfer passage 11 on the base 14. By this arrangement, the overflow in the prechamber 112 or buffer chamber 111 can flow through the opening 1125 to the other chamber, and also facilitate the further discharge of the overflow from the fire channel 11.

As shown in fig. 3, in the present embodiment, the height of the lower surface 11a of the fire transfer passage 11 provided on the base 14 is gradually lowered along the fire transfer direction a, so as to achieve the purpose of increasing the flow speed of the overflowing liquid in the fire transfer passage 11, thereby improving the efficiency of the overflowing liquid discharged out of the fire transfer passage 11. The overflow liquid is prevented from blocking the fuel gas channel communicated with the fire transfer channel 11 and the gas mixing chamber 12.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A gas cooker comprises an inner ring burner and an outer ring burner which are concentrically arranged, wherein the outer ring burner comprises a fire transfer channel and a gas mixing chamber, the fire transfer channel penetrates through the outer ring burner and extends from the inner side surface to the outer side surface of the outer ring burner, the gas cooker is characterized in that the fire transfer channel comprises a buffer cavity and a pre-combustion cavity which are sequentially arranged along the fire transfer direction and are communicated with each other, and the buffer cavity and the pre-combustion cavity are respectively communicated with the gas mixing chamber;

2. A gas hob according to claim 1, characterised in that the length of the buffer chamber extending in the fire transfer direction in the fire transfer channel is larger than the length of the prechamber extending in the fire transfer direction in the fire transfer channel.

3. A gas cooking appliance as claimed in claim 1, wherein the flame outlet of the prechamber in communication with the outer surface comprises:

4. A gas cooker as recited in claim 3, wherein the flame outlet further comprises a third opening disposed below the second opening, a width of the third opening being less than a width of the second opening, a height of the third opening being greater than a height of the second opening.

5. A gas cooking appliance as claimed in claim 3, wherein the number of the first openings is plural, and the plural first openings are sequentially provided between the fire holes of the outer ring burner in a horizontal direction.

6. The gas cooker as set forth in claim 1, wherein an opening of said precombustion chamber communicating with said buffer chamber and a fire outlet of said precombustion chamber communicating with said outer side surface are arranged in a staggered manner in a fire propagation direction.

7. A gas cooking appliance as claimed in claim 1, wherein the opening of the prechamber communicating with the buffer chamber and the fire inlet of the buffer chamber communicating with the inner side surface are arranged offset in the direction of fire propagation.

8. A gas burner as in claim 1, wherein the prechamber extends from an opening in the buffer chamber to a lower surface of the flame-conducting channel.

9. A gas hob according to claim 8, characterised in that the height of the lower surface of the fire transfer channel decreases gradually in the fire transfer direction.

10. A gas cooking appliance as claimed in claim 1, characterized in that the gas channel, which communicates the gas mixing chamber to the buffer chamber, comprises a first gas outlet, which is arranged in the direction of the inner side surface.

11. A gas cooking appliance as claimed in claim 10, wherein the gas channel of the gas mixing chamber communicating to the buffer chamber further comprises a second gas outlet, the second gas outlet being arranged perpendicular to the fire propagation direction, the second gas outlet being arranged at the rear side of the first gas outlet along the fire propagation direction.

12. A gas burner as set forth in claim 1, wherein said outer ring burner further comprises a base and a fire cover, an upper portion of said base being open, said fire cover being disposed at the open portion of said base, said fire cover and said base together enclosing said gas mixing chamber.

13. A gas hob according to claim 12 wherein the fire cover and the base together also enclose the fire conducting channel.

14. A gas cooker according to any one of claims 1 to 13, wherein a cross-sectional area of a gas passage of the gas mixing chamber communicating to the buffer chamber is smaller than a cross-sectional area of a gas passage of the gas mixing chamber communicating to the prechamber.

15. A gas hob according to any one of the claims 1 to 13, characterised in that the chamber volume of the buffer chamber is larger than the chamber volume of the prechamber.