One-piece die-cast upper air inlet burner and its operation method

Abstract

The present invention provides an integrally die-cast upper air inlet burner and an operation method thereof, comprising a nozzle seat, an air distribution plate and a fire cover stacked from bottom to top, the fire cover comprising an inner circular fire cover and an outer ring fire cover, the air distribution plate comprising an inner circular air plate and an outer ring air plate in the form of inner and outer ring sleeves, the inner circular fire cover is buckled on the inner circular air plate to form a central air mixing chamber and a middle ring air mixing chamber, the outer ring fire cover is buckled on the outer ring air plate to form an outer ring air mixing chamber, the central air mixing chamber is connected to an inner ejector pipe, the middle ring air mixing chamber is connected to an intermediate ejector pipe, and the outer ring air mixing chamber is connected to at least one main ejector pipe, the inner ejector pipe, the intermediate ejector pipe and the main ejector pipe are separated from each other and are independently arranged, the air intake directions of the inner ejector pipe and the intermediate ejector pipe are opposite, the nozzle seat comprises at least one air intake pipe, the air intake pipe is connected to a plurality of air distribution pipes, one of the air distribution pipes is connected to the inner ejector pipe through an inner nozzle, the second of the air distribution pipes is connected to the intermediate ejector pipe through a middle nozzle, and the third of the air distribution pipes is connected to the main ejector pipe through an outer nozzle.

Description

Technical Field

[0001] The invention belongs to the technical field of kitchen stoves and relates to a gas stove, in particular to an integrally die-cast upper air inlet burner and an operating method thereof. Background Art

[0002] Upward air inlet burners are increasingly used in gas stoves due to their safety and easy cleaning characteristics. However, due to their short ejection tubes and weak ejection capacity, a multi-nozzle method is used to improve the ejection capacity. However, the current structures are all integrally cast or split die-cast, with poor sealing and high cost.

[0003] For example, a Chinese patent document once disclosed a three-ring burner with upper air intake [Chinese Patent No.: 201710564450.7], the technical content of which is that three ejector tubes are arranged side by side on one side, so the distance between the ejector tubes is too close, resulting in mutual interference. At the same time, the main ejector tube crosses the air mixing chamber, the cross-sectional area of ​​the secondary air inlet is small, and the combustion performance is poor. In addition, it cannot meet the core pulling process, and needs to adopt an integrated casting or split process, which has high manufacturing costs. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose an integrally die-cast upper air inlet burner and its operating method, in which 4 channels are arranged horizontally in parallel, 2 channels in the outer ring are arranged 180 degrees opposite to each other, and the middle ring and the inner ring are arranged on each side in the same direction as the 2 channels in the outer ring.

[0005] The objectives of the present invention can be achieved through the following technical solutions: an integrally die-cast upper air inlet burner, comprising a nozzle seat, an air distribution plate and a fire cover stacked from bottom to top, the fire cover comprising an inner circular fire cover and an outer ring fire cover in the form of an inner and outer ring sleeve, the inner circular fire cover is divided into an upper central chamber and an upper middle ring chamber, the upper middle ring chamber surrounds the outer ring of the upper central chamber, the outer ring fire cover has an upper outer ring chamber, the air distribution plate comprises an inner circular gas plate and an outer ring gas plate in the form of an inner and outer ring sleeve, the inner circular gas plate is divided into a lower central chamber and a lower middle ring chamber, the lower middle ring chamber surrounds the outer ring of the lower central chamber, the outer ring gas plate has a lower outer ring chamber, the inner circular fire cover is buckled onto the inner circular gas plate so that the upper central chamber and the lower central chamber are buckled together to form a central mixed air Chamber, so that the upper middle ring chamber and the lower middle ring chamber are buckled to form a middle ring mixing chamber, the outer ring fire cover is buckled on the outer ring gas disk, so that the upper outer ring chamber and the lower outer ring chamber are buckled to form an outer ring mixing chamber, the central mixing chamber is connected to the inner ejector pipe, the middle ring mixing chamber is connected to the middle ejector pipe, and the outer ring mixing chamber is connected to at least one main ejector pipe, the inner ejector pipe, the middle ejector pipe and the main ejector pipe are separated from each other and are independently arranged, the air intake direction of the inner ejector pipe is opposite to that of the middle ejector pipe, the nozzle seat includes at least one intake pipe, the intake pipe is connected to a plurality of branch pipes, one branch pipe is connected to the inner ejector pipe through an inner nozzle, the second branch pipe is connected to the middle ejector pipe through a middle nozzle, and the third branch pipe is connected to the main ejector pipe through an outer nozzle.

[0006] The internal ejector tube and the middle ejector tube of the integrally die-cast upper air inlet burner adopt a two-way core-pulling process, thereby enabling the ejector tube to adopt a Venturi tube structure, thereby improving its ejection capacity.

[0007] In the above-mentioned integrally die-cast upper air inlet burner, the inner ejector tube and the middle ejector tube are arranged in parallel.

[0008] In the above-mentioned one-piece die-cast upper air inlet burner, the number of the main ejector tubes is two, and the two main ejector tubes are arranged in 180° rotational symmetry. The main ejector tubes are curved tube bodies, and the air intake directions of the two main ejector tubes are opposite. One main ejector tube has the same air intake direction as the inner ejector tube, and the second ejector tube has the same air intake direction as the middle ejector tube.

[0009] In the above-mentioned integrally die-cast upper air inlet burner, there are two air inlet pipes, one end of which is an air inlet port and the other end is a sealed port. One of the air inlet pipes is connected to the inner ejector pipe and the middle ejector pipe, and the other air inlet pipe is connected to the two main ejector pipes.

[0010] In the above-mentioned integrally die-cast upper air inlet burner, the inner circular gas disk is fixedly connected to the inner ends of the inner ejector tube and the middle ejector tube, and the outer ring gas disk is fixedly connected to the outer ends of the inner ejector tube and the middle ejector tube. The inner circular gas disk and the outer ring gas disk separated from each other are formed into a whole by the fixed connection of the inner ejector tube and the middle ejector tube, which is convenient for manufacturing and installation.

[0011] In the above-mentioned integrally die-cast upper air inlet burner, a plurality of fire outlet holes are evenly opened on the top wall of the central chamber of the inner circular fire cover, and a plurality of fire outlet holes are evenly opened on the outer side wall of the middle ring chamber of the inner circular fire cover.

[0012] In the above-mentioned integrally die-cast upper air inlet burner, a plurality of fire outlet holes are evenly opened on the outer side wall of the outer ring chamber of the outer ring fire cover.

[0013] In the above-mentioned integrally die-cast upper air inlet burner, a plurality of legs are fixedly provided on the nozzle seat.

[0014] The operation method of the integral die-cast upper air inlet burner includes the following contents:

[0015] 1) After the valve is opened, gas is introduced through two intake pipes at the same time;

[0016] 2) In one of the air intake pipes, the air from the air distribution pipe at the head end of the air intake pipe enters the inner ejector pipe through the inner nozzle, and then flows into the central air mixing chamber, and is ejected from the top fire outlet to burn; the air from the air distribution pipe at the tail end of the air intake pipe enters the middle ejector pipe in the reverse direction through the middle nozzle, and then flows into the middle ring air mixing chamber, and is ejected from the side fire outlet to burn;

[0017] 3) In the second air intake pipe, the air distribution pipe at the head end of the air intake pipe enters the first main ejector pipe through the external nozzle, and then flows into the outer ring air mixing chamber, and is ejected from the side fire holes for combustion; the air distribution pipe at the tail end of the air intake pipe enters the second main ejector pipe in the reverse direction through the external nozzle, and then flows into the outer ring air mixing chamber, and is ejected from the side fire holes for combustion.

[0018] Compared with the prior art, the integral die-cast upper air inlet burner and its operation method have the following advantages:

[0019] 1. The outer ring increases the length required for the injection and makes the gas mixture in the cavity uniform.

[0020] 2. The inner ring and the middle ring are arranged separately and facing each other, which separates the injection channel and reduces mutual interference. At the same time, they are arranged in the same direction as the outer ring to meet the core pulling process. The entire mixing chamber can be formed in one piece, with low cost and high manufacturability.

[0021] 3. The inner ring and the middle ring are arranged separately and facing each other, and at the same time serve as ribs connecting the inner and outer cavities. The appearance is simple and the secondary air channel is maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the integrally die-cast upper air inlet burner.

[0023] Figure 2 The internal structure diagram of the fire cover of the integrally die-cast upper air inlet burner is shown.

[0024] Figure 3 It is a top view of the structure of the gas distribution plate in the integrally die-cast upper air inlet burner.

[0025] Figure 4 It is a structural diagram of the gas distribution plate in the integrally die-cast upper air inlet burner viewed from above.

[0026] Figure 5 The diagram is a top view of the structure of the nozzle seat in the integrally die-cast upper air inlet burner.

[0027] In the figure, 1, inner circular fire cover; 1a, upper central chamber; 1b, upper middle ring chamber; 2, outer ring fire cover; 2a, upper outer ring chamber; 3, inner circular gas disk; 3a, lower central chamber; 3b, lower middle ring chamber; 4, outer ring gas disk; 4a, lower outer ring chamber; 5, inner ejector tube; 6, middle ejector tube; 7, main ejector tube; 8, inner nozzle; 9, middle nozzle; 10, outer nozzle; 11, nozzle seat; 12, support foot. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figures 1 to 5As shown, the integrally die-cast upper air inlet burner comprises a nozzle seat 11, a gas distribution plate and a fire cover stacked from bottom to top, the fire cover comprising an inner circular fire cover 1 and an outer ring fire cover 2 in the form of inner and outer ring sleeves, the inner circular fire cover 1 is divided into an upper central chamber 1a and an upper middle ring chamber 1b, the upper middle ring chamber 1b surrounds the outer ring of the upper central chamber 1a, the outer ring fire cover 2 has an upper outer ring chamber 2a, the gas distribution plate comprises an inner circular gas plate 3 and an outer ring gas plate 4 in the form of inner and outer ring sleeves, the inner circular gas plate 3 is divided into a lower central chamber 3a and a lower middle ring chamber 3b, the lower middle ring chamber 3b surrounds the outer ring of the lower central chamber 3a, the outer ring gas plate 4 has a lower outer ring chamber 4a, the inner circular fire cover 1 is buckled onto the inner circular gas plate 3, so that the upper central chamber 1a and the lower central chamber 3a are buckled together to form a central mixing chamber , so that the upper middle ring chamber 1b and the lower middle ring chamber 3b are buckled to form a middle ring mixing chamber, the outer ring fire cover 2 is buckled on the outer ring gas disk 4, so that the upper outer ring chamber 2a and the lower outer ring chamber 4a are buckled to form an outer ring mixing chamber, the central mixing chamber is connected to the inner ejector pipe 5, the middle ring mixing chamber is connected to the intermediate ejector pipe 6, and the outer ring mixing chamber is connected to at least one main ejector pipe 7, the inner ejector pipe 5, the intermediate ejector pipe 6, and the main ejector pipe 7 are separated from each other and are independently arranged, the air intake direction of the inner ejector pipe 5 is opposite to that of the intermediate ejector pipe 6, the nozzle seat 11 includes at least one intake pipe, the intake pipe is connected to a plurality of branch pipes, one of which is connected to the inner ejector pipe 5 through the inner nozzle 8, the second branch pipe is connected to the intermediate ejector pipe 6 through the middle nozzle 9, and the third branch pipe is connected to the main ejector pipe 7 through the outer nozzle 10.

[0030] In the integrally die-cast upper air inlet burner, the inner ejector tube 5 and the middle ejector tube 6 adopt a two-way core-pulling process, thereby enabling the ejector tube to adopt a Venturi tube structure, thereby improving its ejection capacity.

[0031] The inner ejector tube 5 and the middle ejector tube 6 are arranged in parallel.

[0032] There are two main ejector tubes 7, which are arranged in 180° rotational symmetry. The main ejector tubes 7 are curved tube bodies. The air intake directions of the two main ejector tubes 7 are opposite. One main ejector tube 7 has the same air intake direction as the inner ejector tube 5, and the other main ejector tube has the same air intake direction as the middle ejector tube 6.

[0033] There are two air intake pipes, one end of which is an air inlet and the other end is a sealed end. One of the air intake pipes is connected to the inner ejector pipe 5 and the middle ejector pipe 6 , and the other air intake pipe is connected to the two main ejector pipes 7 .

[0034] The inner circular gas disk 3 is fixedly connected to the inner ends of the inner ejector tube 5 and the middle ejector tube 6, and the outer ring gas disk 4 is fixedly connected to the outer ends of the inner ejector tube 5 and the middle ejector tube 6. Through the fixed connection of the inner ejector tube 5 and the middle ejector tube 6, the inner circular gas disk 3 and the outer ring gas disk 4 separated from each other are formed into a whole, which is convenient for manufacturing and installation.

[0035] On the top wall of the central chamber of the inner circular burner cap 1, a number of fire holes are evenly opened, and on the outer side wall of the middle ring chamber of the inner circular burner cap 1, a number of fire holes are evenly opened.

[0036] On the outer side wall of the outer ring chamber of the outer ring burner cap 2, a number of fire holes are evenly opened.

[0037] A number of support feet 12 are fixedly arranged on the nozzle seat 11.

[0038] The operation method of the integrally die-cast upward air inlet burner includes the following:

[0039] 1), After opening the valve, the gas is simultaneously introduced through two inlet pipes;

[0040] 2), In one of the inlet pipes, the gas enters the inner ejector pipe 5 positively through the branch pipe at the head end of the inlet pipe by the inner nozzle 8, then flows into the central mixing chamber, and is ejected from the fire holes at the top for combustion; the gas enters the middle ejector pipe 6 reversely through the branch pipe at the tail end of the inlet pipe by the middle nozzle 9, then flows into the middle ring mixing chamber, and is ejected from the fire holes at the side for combustion;

[0041] 3), In the other inlet pipe, the gas enters one main ejector pipe 7 positively through the branch pipe at the head end of the inlet pipe by the outer nozzle 10, then flows into the outer ring mixing chamber, and is ejected from the fire holes at the side for combustion; the gas enters the other main ejector pipe 7 reversely through the branch pipe at the tail end of the inlet pipe by the outer nozzle 10, then flows into the outer ring mixing chamber, and is ejected from the fire holes at the side for combustion.

[0042] Compared with the prior art, the integrally die-cast upward air inlet burner and its operation method have the following advantages:

[0043] 1. The outer ring increases the length required for ejection and makes the mixing of gas in the chamber uniform.

[0044] 2. The inner ring and the middle ring are arranged separately and facing each other, separating the ejection channels, reducing mutual interference, and at the same time arranged in the same direction as the outer ring, meeting the core-pulling process. The entire mixing chamber can be integrally formed, with low cost and high manufacturability.

[0045] 3. The inner ring and the middle ring are arranged separately and facing each other, and at the same time serve as ribs connecting the inner and outer cavities, with a simple shape and maximizing the secondary air channel.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0047] Although the terminology such as inner round fire cover 1; upper central chamber 1a; upper middle ring chamber 1b; outer ring fire cover 2; upper outer ring chamber 2a; inner round gas disk 3; lower central chamber 3a; lower middle ring chamber 3b; outer ring gas disk 4; lower outer ring chamber 4a; inner ejector tube 5; middle ejector tube 6; main ejector tube 7; inner nozzle 8; middle nozzle 9; outer nozzle 10; nozzle seat 11; support foot 12 is used more in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. The integral die-cast upper air inlet burner includes a nozzle seat, a gas distribution plate and a fire cover stacked from bottom to top. It is characterized in that The fire cover comprises an inner circular fire cover and an outer ring fire cover in the form of an inner and outer ring sleeve, the inner circular fire cover is divided into an upper central chamber and an upper middle ring chamber, the upper middle ring chamber surrounds the outer ring of the upper central chamber, the outer ring fire cover has an upper outer ring chamber, the gas distribution plate comprises an inner circular gas plate and an outer ring gas plate in the form of an inner and outer ring sleeve, the inner circular gas plate is divided into a lower central chamber and a lower middle ring chamber, the lower middle ring chamber surrounds the outer ring of the lower central chamber, the outer ring gas plate has a lower outer ring chamber, and the inner circular fire cover is buckled onto the inner circular gas plate The upper central chamber is buckled with the lower central chamber to form a central air mixing chamber, the upper middle ring chamber is buckled with the lower middle ring chamber to form a middle ring air mixing chamber, the outer ring fire cover is buckled on the outer ring gas disk, the upper outer ring chamber is buckled with the lower outer ring chamber to form an outer ring air mixing chamber, the central air mixing chamber is connected to the inner ejector tube, the middle ring air mixing chamber is connected to the middle ejector tube, the outer ring air mixing chamber is connected to at least one main ejector tube, the inner ejector tube, the middle ejector tube and the main ejector tube are separated from each other and are independently arranged, the The air intake direction of the inner ejector pipe is opposite to that of the middle ejector pipe. The nozzle seat includes at least one air intake pipe, and the air intake pipe is connected to a plurality of branch air pipes. One branch air pipe is connected to the inner ejector pipe through an inner nozzle, and the second branch air pipe is connected to the middle ejector pipe through a middle nozzle. The third branch air pipe is connected to the main ejector pipe through an outer nozzle. The inner ejector pipe and the middle ejector pipe are arranged in parallel. There are two main ejector pipes, and the two main ejector pipes are arranged 180° rotationally symmetrically. The main ejector pipe is a curved pipe body. The two main ejector pipes are arranged in parallel. The air intake directions of the ejector tubes are opposite, one main ejector tube has the same air intake direction as the inner ejector tube, and the second ejector tube has the same air intake direction as the middle ejector tube. There are two air intake tubes, one end of the air intake tube is an air inlet, and the other end is a sealed end. One air intake tube is connected to the inner ejector tube and the middle ejector tube, and the second air intake tube is connected to the two main ejector tubes. The inner circular gas disk is fixedly connected to the inner ends of the inner ejector tube and the middle ejector tube, and the outer ring gas disk is fixedly connected to the outer ends of the inner ejector tube and the middle ejector tube. The operation method of the integrally die-cast upper air inlet burner includes the following contents: 1) After the valve is opened, gas is introduced through two intake pipes at the same time; 2) In one of the air intake pipes, the air from the air distribution pipe at the head end of the air intake pipe enters the inner ejector pipe through the inner nozzle, and then flows into the central air mixing chamber, and is ejected from the top fire outlet to burn; the air from the air distribution pipe at the tail end of the air intake pipe enters the middle ejector pipe in the reverse direction through the middle nozzle, and then flows into the middle ring air mixing chamber, and is ejected from the side fire outlet to burn; 3) In the second air intake pipe, the air distribution pipe at the head end of the air intake pipe enters the first main ejector pipe through the external nozzle, and then flows into the outer ring air mixing chamber, and is ejected from the side fire holes for combustion; the air distribution pipe at the tail end of the air intake pipe enters the second main ejector pipe in the reverse direction through the external nozzle, and then flows into the outer ring air mixing chamber, and is ejected from the side fire holes for combustion.

2. The integrally die-cast upper air inlet burner according to claim 1, It is characterized in that A plurality of fire outlet holes are evenly opened on the top wall of the central chamber of the inner circular fire cover, and a plurality of fire outlet holes are evenly opened on the outer side wall of the middle ring chamber of the inner circular fire cover.

3. The integrally die-cast upper air inlet burner according to claim 1, It is characterized in that A plurality of fire outlet holes are evenly opened on the outer side wall of the outer ring chamber of the outer ring fire cover.

4. The integrally die-cast upper air inlet burner according to claim 1, It is characterized in that A plurality of supporting legs are fixedly arranged on the nozzle seat.

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