CN204611765U - A kind of burner of household gas range - Google Patents

Abstract

The utility model discloses a burner for a household gas range, which comprises: a burner head, a gas distribution plate, an inner fire cover and an outer fire cover. An air conveying channel, a first mixing channel and a second mixing channel are arranged in the furnace head. The gas distribution tray is provided with a secondary air gathering area, a first channel, a second channel and a third channel. The second channel communicates with the second mixing channel. One end of the third channel communicates with the air conveying channel, and the other end communicates with the secondary air accumulation area. The inner fire cover is installed on the base of the inner fire cover, and the bottom of the base of the inner fire cover communicates with the first mixing channel, and the top of the base of the inner fire cover communicates with the inner fire cover. The outer fire cover is installed on the gas distribution plate and has a fourth channel. The fourth channel communicates with the second channel, and the outer fire cover is provided with a fire hole, which communicates with the fourth channel. The burner of the household gas stove described in the utility model can realize secondary supplementary air when the mixed gas is burned, so that the air is sufficient, and the phenomenon of excessive CO content in the flue gas caused by insufficient combustion of the gas can be avoided.

Description

Burner for domestic gas stove

technical field

The utility model relates to a household gas stove, in particular to a burner for a household gas stove.

Background technique

With the development of science, people's living standards have gradually improved, and gas stoves have entered thousands of households. The burner, as an important part of the gas stove, determines the performance of the gas stove. Commonly used burners mainly include a burner head, an ejector pipe connected to the burner head, a gas distribution plate above the burner head, and a fire hole cover arranged above the gas distribution plate. A gas channel is arranged on the burner head to communicate with the inner cavity of the injection tube, and is used for delivering the mixed gas from the inner cavity of the injection tube to the two gas chambers. When the gas cooker is in use, the gas supply system is turned on, the gas is injected into the injection pipe through the pipeline, and the air and gas mixed by the injection pipe are mixed into a mixed gas, and the mixed gas is transported from the inner cavity of the injection tube into the gas cavity, and diffuses in the gas cavity And emerge from the fire hole on the fire hole cover, the ignition system can ignite.

However, the existing burners have the following defects:

1. The gas distribution plate includes a plurality of cylindrical partitions arranged coaxially. The fire hole cover includes a disc-shaped inner fire hole cover and a ring-shaped outer fire hole cover. The inner gas chamber is formed on the cylinder partition, and the outer fire hole cover is installed on the outer two cylinder partitions to form the outer gas chamber. In this way, the air is mixed with the gas after being drained by the injection tube. When the heat load of the burner is large, the carbon monoxide content in the flue gas will exceed the standard due to insufficient supplementation of secondary air in the burner.

2. Flame stabilizing fire holes are set on the same horizontal plane between the main fire holes around the outer periphery of the fire cover. The distance between the fire holes is small, and the firepower of the fire cover is poor. An annular flame stabilizing diversion cover is set on the upper part of the main fire holes around the outer periphery of the fire cover, and the diversion cover is easy to collapse Block the flame-stabilizing hole; set an annular flame-stabilizing groove at the lower part of the main fire hole around the outer periphery of the fire cover, or arrange flame-stabilizing holes at the upper or lower part of the main fire hole around the outer periphery of the fire cover, and the liquid droplets at the bottom of the pot will easily flow into the flame-stabilizing groove and block the flame-stabilizing groove. flame slot, resulting in poor ignition and poor automatic flameout.

3. The heat load of the flame in the center of the burner is relatively small, resulting in the center of the bottom of the pot not being hot, which makes it difficult to meet the requirements of Chinese style stir-frying. When the diameter of the center injection tube is increased to increase the heat load of the center flame, although it can increase the primary air intake, it is easy to produce flashback, flameout deflagration and large flameout noise.

Contents of the invention

Based on this, the utility model aims at overcoming the defects of the prior art, and provides a burner for a domestic gas stove, which makes the secondary air supplement sufficient when the gas is burned, and can avoid the excessive carbon dioxide in the flue gas.

Its technical solution is as follows: a burner for a household gas stove, comprising: a burner head, an air delivery channel is arranged in the burner head, a first mixing channel located in the air delivery channel and a first mixing channel located outside the air delivery channel The second mixing channel, the first mixing channel and the second mixing channel are respectively connected to the first mixed gas delivery pipe and the second mixed gas delivery pipe; the gas distribution plate is located at the furnace head Above, the middle part of the gas distribution plate is provided with a secondary air accumulation area, the inner fire cover base is provided in the secondary air accumulation area, and more than one first channel is provided at the side of the gas distribution plate. One end of a channel communicates with the outside world, and the other end of the first channel communicates with the secondary air accumulation area; the side of the gas distribution plate is also provided with a second channel and a second channel between adjacent first channels. Three channels, one end of the second channel communicates with the second mixing channel, one end of the third channel communicates with the air delivery channel, and the other end of the third channel communicates with the secondary air accumulation area; The fire cover, the inner fire cover is installed on the base of the inner fire cover, and the bottom of the inner fire cover base communicates with the first mixing channel, and the top of the inner fire cover base communicates with the inner fire cover base. The cover communicates; the outer fire cover, the outer fire cover is installed on the gas distribution plate, the outer fire cover is provided with a fourth channel, the fourth channel communicates with the other end of the second channel, the The outer fire cover is provided with a fire injection hole, and the fire injection hole communicates with the fourth channel.

In one embodiment, there are four first channels, and the four first channels are evenly distributed on the gas distribution plate.

In one of the embodiments, the outer fire cover is provided with an air flow guide plate, the air flow guide plate is located above the second channel, and the air flow guide plate is from the side of the gas distribution plate to the gas distribution plate. The middle part of the dish is set with a downward slope.

In one of the embodiments, a baffle is arranged inside the air delivery channel, and the baffle is connected to the side wall used to form the air delivery channel, and the baffle is also connected to the side wall used to form the first channel. The side walls are connected, and the partition is provided with an annular mouth.

In one of the embodiments, the first mixed gas delivery pipe is connected to the side wall used to form the air delivery channel, and the first mixed gas delivery tube is also connected to the side wall used to form the second mixed gas channel The walls are connected.

In one of the embodiments, the first mixed gas delivery pipe is connected to the second mixed gas delivery pipe by a fixing frame.

In one of the embodiments, the inner fire cover is provided with a gas chamber communicating with the base of the inner fire cover, and the side wall of the inner fire cover is provided with an annular recess, and the recess is provided with a main fire hole, located at the The flame stabilizing hole above the main flame hole is located above the area of the recess closest to the central axis of the inner fire cover.

In one of the embodiments, the flame stabilizing hole is arranged horizontally or the flame stabilizing hole is arranged obliquely downward from the inside of the inner fire cover to the outside of the inner fire cover.

In one of the embodiments, the outlet end of the first mixing channel is provided with a partition for dividing the outlet end of the first mixing channel into a plurality of conveying channels.

In one of the embodiments, the separator includes a first separator and a second separator connected to the first separator, and the first separator and the second separator are intersected.

Below in conjunction with above-mentioned technical scheme, principle of the present utility model, effect are further described:

1. For the burner of the household gas stove described in the utility model, when the mixed gas is combusted, the secondary air accumulation area can receive air from the first channel on the side of the gas distribution tray, and can also receive air from the air delivery channel of the burner head. Air, which can realize secondary supplementary air, so that the air is sufficient to avoid excessive CO content in flue gas caused by insufficient combustion of gas.

2. The main fire hole and the flame stabilizing hole are hidden in the concave part. The overflow liquid during cooking is blocked by the flange on the upper end of the inner fire cover. Main flame hole and steady flame hole.

3. The outlet of the first mixing channel is divided into multiple conveying channels by a partition, so that the diameter of the first mixing channel is increased to achieve a large heat load on the bottom of the pot, and at the same time, it can avoid CO exceeding the standard, tempering and flameout deflagration.

Description of drawings

Fig. 1 is a schematic view of the structure of the burner of the household gas range described in the embodiment of the present invention;

Fig. 2 is a partial sectional view of the burner of the household gas stove according to the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the gas distribution plate of the burner of the household gas stove according to the embodiment of the present invention;

Fig. 4 is a partial cross-sectional view of the gas distribution plate of the burner of the household gas stove according to the embodiment of the present invention;

Fig. 5 is a schematic diagram of the structure of the inner fire cover of the burner of the household gas stove according to the embodiment of the present invention;

Fig. 6 is an axial cross-sectional view of the inner fire cover of the burner of the household gas stove according to the embodiment of the present invention.

Explanation of reference signs:

10. Furnace head, 11. First mixing channel, 12. Second mixing channel, 13. Air delivery channel, 14. First mixed gas delivery pipe, 15. Second mixed gas delivery pipe, 16. Annular port, 17. Fixed frame, 18, first step, 20, gas distribution plate, 21, inner fire cover base, 22, first channel, 23, second channel, 24, third channel, 25, second step, 26, partition Pieces, 30, inner fire cover, 31, recess, 32, main fire hole, 33, flame stabilizing hole, 34, flange, 35, gas chamber, 36, third step, 40, outer fire cover, 41, fourth Passage, 42, fire hole, 43, airflow guide plate, 44, guide port.

Detailed ways

Embodiments of the present utility model are described in detail below:

As shown in Fig. 1 or 2, the burner of the household gas stove described in the utility model includes: a burner head 10, a gas distribution tray 20, an inner fire cover 30 and an outer fire cover 40. Wherein, the furnace head 10 is provided with an air conveying passage 13, a first mixing passage 11 located in the air conveying passage 13 and a second mixing passage 12 located outside the air conveying passage 13, the first mixing The passage 11 and the second mixing passage 12 communicate with the first mixed gas delivery pipe 14 and the second mixed gas delivery pipe 15 respectively.

The gas distribution pan 20 is located above the furnace head 10 , and a secondary air gathering area (not shown in the figure) is provided in the middle of the gas distribution pan 20 . Please refer to FIG. 4 , the inner fire cover base 21 is provided in the secondary air accumulation area, and more than one first channel 22 is provided on the side of the gas distribution plate 20 . One end of the first channel 22 communicates with the outside world, and the other end of the first channel 22 communicates with the secondary air gathering area. The side of the gas distribution plate 20 is also provided with a second channel 23 and a third channel 24 between the adjacent first channels 22, one end of the second channel 23 communicates with the second mixing channel 12, One end of the third channel 24 communicates with the air conveying channel 13 , and the other end of the third channel 24 communicates with the secondary air gathering area.

The inner fire cover 30 is installed on the inner fire cover base 21, and the bottom of the inner fire cover base 21 communicates with the first mixing passage 11, and the top of the inner fire cover base 21 communicates with the The inner fire cover 30 communicates.

The outer fire cover 40 is installed on the gas distribution plate 20, the outer fire cover 40 is provided with a fourth passage 41, and the fourth passage 41 communicates with the other end of the second passage 23, and the outer fire cover 40 communicates with the other end of the second passage 23. The fire cover 40 is provided with a fire injection hole 42 , and the fire injection hole 42 communicates with the fourth channel 41 .

In the burner of the household gas stove described in the utility model, a part of the mixed gas passes through the first mixed gas conveying pipe 14 of the burner head 10 and enters the first mixing channel 11 for re-mixing, and after passing through the inner fire cover base 21, it is fed by the inner fire. Cap 30 is ejected. The other part of the mixed gas enters the second mixing channel 12 through the second mixed gas delivery pipe 15 of the burner 10 and mixes again, then enters the fourth channel 41 through the second channel 23 and is sprayed out from the outer fire cover 40 . The air enters the secondary air gathering area from the first channel 22 at the side of the air distribution tray 20 , and the air also enters the secondary air gathering area from the air conveying channel 13 through the third channel 24 . In this way, when the mixed gas is combusted, the secondary air accumulation area can receive air from the first channel 22 on the side of the gas distribution tray 20, and can also receive air from the air delivery channel 13 of the burner 10, which can realize secondary supplementary air, The air is sufficient to avoid excessive CO content in flue gas caused by insufficient combustion of gas.

Referring to Fig. 3, there are four first passages 22, and the four first passages 22 are evenly distributed on the air distribution plate 20, and the air enters from the four first passages 22 of the air distribution plate 20 to In the secondary air accumulation area, the gas ejected from all directions of the inner fire cover 30 can be fully combusted. Please refer to FIG. 2 again, the outer fire cover 40 is provided with an airflow guide plate 43 . The airflow guide plate 43 is located above the second channel 23 , and the airflow guide plate 43 is arranged inclined downward from the side of the air distribution pan 20 to the middle of the air distribution pan 20 . The air coming out of the second channel 23 is guided by the airflow guide plate 43, and enters the secondary air gathering area through the guide opening 44 facing the secondary air gathering area.

The air conveying channel 13 is provided with a baffle, and the baffle is connected to the side wall for forming the air conveying channel 13 , and the baffle is also connected to the side wall for forming the first channel 22 , the partition is provided with an annular port 16 . The first mixed gas delivery pipe 14 is connected to the side wall for forming the air delivery channel 13 , and the first mixed gas delivery tube 14 is also connected to the side wall for forming the second mixing channel 12 . The first mixed gas delivery pipe 14 is connected with the second mixed gas delivery pipe 15 by a fixing frame 17 . The side wall for forming the first mixing channel 11 is provided with a first step 18, the lower end of the inner fire cover base 21 is provided with a step surface matching the first step 18, and the upper end of the inner fire cover base 21 is provided with a second step. The lower end of the inner fire cover 30 of the step 25 is provided with a third step 36 matched with the second step 25 . In this way, the inner fire cover base 21 communicates with the first mixing channel 11 , and the inner fire cover 30 communicates with the inner fire cover base 21 . It can be seen that the various structures inside the burner 10 are firmly connected to each other, and the use effect is good.

Please refer to FIG. 3 , the outlet end of the first mixing channel 11 is provided with a partition 26 for dividing the outlet end of the first mixing channel 11 into a plurality of conveying channels. In the embodiment of the present utility model, the separator 26 includes a first separator, a second separator (not shown in the figure) connected to the first separator, and the first separator and the second separator Two separators cross set. In this way, the outlet of the first mixing channel 11 is divided into multiple conveying channels by the partition 26, and the diameter of the first mixing channel 11 is increased to achieve a large heat load on the bottom of the pot, while avoiding excessive CO, flashback and flameout deflagration Phenomenon.

Please refer to FIG. 5 , the inner fire cover 30 is provided with a gas chamber 35 communicating with the inner fire cover base 21 , and the side wall of the inner fire cover 30 is provided with an annular recess 31 . The recess 31 is provided with a main fire hole 32 and a flame stabilizing hole 33 above the main fire hole 32 . Please refer to Fig. 6, the flame stabilizing hole 33 is located in the region above the bottom of the recess 31, the flame stabilizing hole 33 is horizontally arranged or the flame stabilizing hole 33 is from the inside of the inner fire cover 30 to the inner The exterior of the fire cover 30 is inclined downwards. In this way, the main fire hole 32 and the flame-stabilizing hole 33 are hidden in the recess 31, and the overflow in the cooking process is blocked by the flange 34 on the upper end of the inner fire cover 30, and the oil is difficult to enter the main fire hole 32 and the flame-stabilizing hole 33, which can avoid The oily liquid at the bottom of the pan enters and blocks the main fire hole 32 and the steady flame hole 33.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. a burner for household gas range, is characterized in that, comprising:

Burner, be provided with air delivery passage in described burner, be positioned at the first hybrid channel of described air delivery passage and be positioned at the second hybrid channel outside described air delivery passage, described first hybrid channel, described second hybrid channel are communicated to the first mixed gas pipeline and the second mixed gas pipeline respectively;

Air distribution disk, described air distribution disk is positioned at above described burner, auxiliary air accumulation regions is provided with in the middle part of described air distribution disk, inner fire cover pedestal is provided with in described auxiliary air accumulation regions, described air distribution disk sidepiece is provided with more than one first passage, described first passage one end communicates with the external world, and the described first passage other end communicates with described auxiliary air accumulation regions; Described air distribution disk sidepiece is also provided with second channel between adjacent described first passage and third channel, described second channel one end is communicated with described second hybrid channel, described third channel one end communicates with described air delivery passage, and the described third channel other end communicates with described auxiliary air accumulation regions;

Inner fire cover, described inner fire cover is arranged on described inner fire cover pedestal, and described inner fire cover base bottom communicates with described first hybrid channel, and described inner fire cover pedestal top communicates with described inner fire cover;

Outer fire cover, described outer fire cover is arranged on described air distribution disk, and described outer fire cover is provided with four-way, and described four-way communicates with the other end of described second channel, and described outer fire cover is provided with fire jetting hole, and described fire jetting hole communicates with described four-way.

2. the burner of household gas range according to claim 1, is characterized in that, described first passage is four, and four described first passages are evenly distributed on described air distribution disk.

3. the burner of household gas range according to claim 1, it is characterized in that, described outer fire cover is provided with gas-flow deflector, and described gas-flow deflector is positioned at above described second channel, and described gas-flow deflector is by downward-sloping setting in the middle part of described air distribution disk sidepiece to described air distribution disk.

4. the burner of household gas range according to claim 1, it is characterized in that, dividing plate is provided with in described air delivery passage, described dividing plate is connected with the sidewall for the formation of described air delivery passage, described dividing plate is also connected with the sidewall for the formation of described first passage, and described dividing plate is provided with annular mouth.

5. the burner of household gas range according to claim 1, it is characterized in that, described first mixed gas pipeline is connected with the sidewall for the formation of described air delivery passage, and described first mixed gas pipeline is also connected with the sidewall for the formation of described second hybrid channel.

6. the burner of household gas range according to claim 5, is characterized in that, described first mixed gas pipeline is connected with described second mixed gas pipeline fixed mount.

7. the burner of household gas range according to claim 1, it is characterized in that, described inner fire cover is provided with the fuel chamber communicated with described inner fire cover pedestal, described inner fire cover sidewall is provided with annular recess, described recess is provided with main fire hole, be positioned at stable flame hole above described main fire hole, and described stable flame hole is positioned at the top of described recess near the region of inner fire cover central shaft.

8. the burner of household gas range according to claim 7, is characterized in that, described stable flame hole be horizontally disposed with or described stable flame hole by described inner fire cover inner to described inner fire cover externally to the setting that has a down dip.

9. the burner of household gas range according to claim 1, is characterized in that, the port of export of described first hybrid channel is provided with the separator for the described first hybrid channel port of export being divided into multiple transfer passage.

10. the burner of household gas range according to claim 9, is characterized in that, the second shim that described separator comprises the first shim, is connected with described first shim, described first shim and described second shim arranged in a crossed manner.