A self-priming burner with adjustable fire and a stove

Abstract

The utility model discloses a kind of self-suction combustion of fire adjustable type, belong to stove technical field, it includes chassis, gas distribution cavity is opened in chassis, more than three combustion assembly is installed on chassis, combustion assembly includes coaxially arranged nozzle, injection pipe and flame stabilizer cap, nozzle, injection pipe and flame stabilizer cap are sequentially connected from bottom to top, nozzle is communicated with gas distribution cavity, characterized by: flame stabilizer cap is connected with injection pipe by first adjusting structure, first adjusting structure can change the distance between the top end of injection pipe and the top end of flame stabilizer cap.This burner because flame stabilizer cap is connected with injection pipe by first adjusting structure, first adjusting structure can change the distance between the top end of injection pipe and the top end of flame stabilizer cap, change the buffer and release distance of airflow from injection pipe in flame stabilizer cap, adjust the speed of airflow overflow flame stabilizer cap, to realize the adjustment between the fierce fire of relatively fast flow rate and the slow fire of relatively slow flow rate.

Description

Technical Field

[0001] This utility model belongs to the field of stove technology, specifically relating to an adjustable-power self-suction burner and stove. Background Technology

[0002] With the development of stove technology, in order to solve the problems of high noise caused by fan-assisted combustion and serious heat loss due to the air carrying away heat, the industry has developed a cannon-style self-suction burner. To reduce the flow resistance of gas and make it suitable for low-pressure gas, the applicant developed a low-pressure gas self-suction burner and stove, with publication number CN221923472U. However, during use, higher requirements were raised, requesting the ability to adjust the flame intensity. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a self-suction burner and stove with adjustable firepower, which can adjust the buffer distance of the airflow and change the speed of the gas flowing out of the flame stabilizer, thereby adjusting the high flame and low flame.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A self-suction burner with adjustable heat output is designed, including a chassis with a gas distribution chamber. Three or more combustion components are installed on the chassis. Each combustion component includes a nozzle, an ejector tube, and a flame stabilizer cap arranged coaxially. The nozzle, ejector tube, and flame stabilizer cap are connected sequentially from bottom to top. The nozzle is connected to the gas distribution chamber. The flame stabilizer cap is connected to the ejector tube via a first adjustment structure, which can change the distance between the top of the ejector tube and the top of the flame stabilizer cap.

[0005] Preferably, the adjustment structure is a first threaded connection, and the flame stabilizer cap is connected to the ejector tube via the first thread; or The first adjustment structure is a lifting frame, which can drive the flame stabilizer cap to rise and fall.

[0006] Preferably, a first nut is fitted on the first thread, and the first nut can support the flame stabilizer cap.

[0007] Preferably, it also includes an integrated disk, on which all ejector tubes are fixed, with the first thread located above the integrated disk.

[0008] Preferably, it also includes a second adjustment structure, wherein an ejector hole is provided on the side wall of the ejector tube, and the nozzle can be inserted into the ejector tube. The second adjustment structure can change the distance at which the nozzle is inserted into the ejector tube.

[0009] Preferably, the second adjustment structure is a second threaded connection, a second nut is fixed on the chassis, the nozzle is fitted into the second nut through the second thread, and the second nut supports the ejector tube.

[0010] Preferably, the flame stabilizer cap includes a bottom ring, a lower hollow body, a flame-gathering tube, an upper hollow body, and a cover plate connected sequentially from bottom to top. The bottom ring is sleeved on the ejector tube, the lower hollow body has a lower hollow hole, and the upper hollow body has an upper hollow hole.

[0011] Preferably, the bottom wall of the cover plate is provided with a drainage cone.

[0012] Preferably, the chassis has an air intake hole, with the upper end of the air intake hole connected to the top wall of the chassis and the lower end connected to the bottom wall of the chassis.

[0013] Preferably, the lower hollow body is flared from bottom to top, and the upper hollow body is flared from top to bottom.

[0014] Preferably, the lower hollow body includes two or more lower support bodies, the lower end of the lower support body is connected to a bottom ring and the upper end is connected to a fire-gathering tube, and a lower hollow hole is formed between two adjacent lower support bodies; the upper hollow body includes two or more upper support bodies, the lower end of the upper support body is connected to a fire-gathering tube and the upper end is connected to a fire-distributing cover, and an upper hollow hole is formed between two adjacent upper support bodies.

[0015] This utility model also provides a stove, including a burner, characterized in that: the burner is the above-mentioned adjustable self-suction burner.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. Since the flame stabilizer is connected to the ejector tube through the first adjustment structure, the first adjustment structure can change the distance between the top of the ejector tube and the top of the flame stabilizer, thereby changing the buffering and release distance of the airflow from the ejector tube in the flame stabilizer and adjusting the speed at which the airflow overflows the flame stabilizer, thus achieving the adjustment between a fast-flowing intense flame and a slow-flowing simmer.

[0017] 2. The adjustment structure uses the first threaded connection, that is, the flame stabilizer is connected to the ejector tube through the first thread. The technology is mature, easy to implement, and helps to improve its cost performance. Of course, the lifting frame can also be used to drive the flame stabilizer to rise and fall, which can also change the distance between the top of the ejector tube and the top of the flame stabilizer.

[0018] 3. Since the first nut is fitted on the first thread, the first nut can support the flame stabilizer cap, so that the first nut can lock the flame stabilizer cap and stabilize the installation position of the flame stabilizer cap.

[0019] 4. An integrated tray is also provided, and all ejector tubes are fixed on the integrated tray. On the one hand, this can enhance the stability of ejector tube installation, and on the other hand, all ejector tubes can be picked up and put down in a unified manner through the integrated tray, saving time and effort, thus facilitating the disassembly and assembly of ejector tubes in the burner.

[0020] 5. Since the ejector tube has an ejector hole on its side wall, the nozzle can be inserted into the ejector tube. The second adjustment structure can change the distance of the nozzle insertion into the ejector tube, thereby changing the effective flow area of ​​the ejector hole and adjusting the amount of air ejected, so as to be suitable for different atmospheric environments with different oxygen content and pressure.

[0021] 6. Since the second adjustment structure is a second threaded connection, a second nut is fixed on the chassis, and the nozzle is fitted into the second nut through the second thread. The second nut supports the ejector tube. While realizing the adjustment of the nozzle installation height, it not only simplifies the construction of the adjustment structure itself, but also simplifies the installation structure of the ejector tube.

[0022] 7. The specific structure of the flame stabilizer cap allows the mixed gas ejected from the ejector tube to first be drawn into the air through the lower perforation. Then, under the converging effect of the flame-gathering tube, it can still maintain a relatively high upward flow velocity and be drawn into the air again through the lower part of the upper perforation. This facilitates the complete combustion of the gas. With the blocking effect of the cover plate, it can enhance the mixing effect of the gas and air on the one hand, and on the other hand, it can cause some gas to be reflected, reducing the amplitude of flame fluctuation and playing a role in stabilizing the flame.

[0023] 8. Because the bottom wall of the cover plate is equipped with a flow-guiding cone, it can both slow down the flow of gas under the obstruction effect and guide the flow direction of the airflow, which is conducive to the formation of a more stable combustion flame.

[0024] 9. Because the chassis has an air intake hole, the upper end of which is connected to the top wall of the chassis and the lower end of which is connected to the bottom wall of the chassis, the air intake hole penetrates through the top and bottom walls of the chassis, providing a sufficient air environment. This allows the injector to inject a sufficient amount of air under the high-speed flow of the gas, thus laying the foundation for achieving a better mixture ratio between the gas and air.

[0025] 10. This utility model has an ingenious design that can change the speed at which gas flows out of the flame stabilizer by adjusting the distance between the top of the ejector tube and the top of the flame stabilizer, thereby adjusting the intensity of the flame and making it easy to promote and apply in the industry. Attached Figure Description

[0026] Figure 1 This is a three-dimensional exploded structural diagram of this utility model; Figure 2 yes Figure 1 View from direction A; Figure 3 yes Figure 1 View from direction B; Figure 4 yes Figure 3 Enlarged cross-sectional view of the middle C-C section; Figure 5 This is a connection structure diagram of the combustion assembly; Figure 6This is a three-dimensional structural diagram of the flame stabilizer cap.

[0027] The markings in the diagram are: 1. Chassis; 2. Integrated plate; 3. Combustion assembly; 31. Nozzle; 32. Injector tube; 33. Injector hole; 34. Flame stabilizer cap; 341. Bottom ring; 342. Lower support body; 343. Lower perforated hole; 344. Flame gatherer; 345. Upper support body; 346. Upper perforated hole; 347. Cover plate; 348. Drain cone; 4. First nut; 5. Second nut; 6. Air supply hole; 7. Gas distribution chamber; 8. Gas inlet. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] When this utility model is in use, the end closer to the ground is defined as the lower end or bottom end, and the other end farther from the ground is defined as the upper end or top end.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, this utility model has a gas distribution chamber 7 and a gas inlet 8 connected to the gas distribution chamber 7 in the chassis 1. Seven combustion components 3 are installed on the chassis 1, one of which is located in the center of the chassis 1, and the other six combustion components 3 are evenly distributed around the circumference of the chassis 1, so that the seven combustion components 3 are evenly distributed and can evenly heat the bottom of the cookware. Figure 5 As shown, the combustion assembly 3 is equipped with a coaxially distributed nozzle 31, ejector tube 32, and flame stabilizer 34, which are connected sequentially from bottom to top. The nozzle 31 is connected to the gas distribution chamber 7, and the flame stabilizer 34 is connected to the ejector tube 32 through a first adjustment structure. Specifically, the flame stabilizer 34 is connected to the ejector tube 32 through a first thread. By screwing the first thread in and out, the distance between the top of the ejector tube 32 and the top of the flame stabilizer 34 is adjusted, which changes the buffering and release distance of the airflow from the ejector tube 32 in the flame stabilizer 34, and adjusts the speed at which the airflow overflows the flame stabilizer 34, thereby achieving the adjustment between a rapid, intense flame and a slow, gentle flame. A first nut 4 is also fitted on the first thread. The first nut 4 can support the flame stabilizer cap 34. That is, the first nut 4 is located below the flame stabilizer cap 34, so that the first nut 4 plays a locking role on the flame stabilizer cap 34, thereby stabilizing the installation position of the flame stabilizer cap 34.

[0031] To ensure that the burner can inject sufficient air into the combustion gas under different atmospheric conditions to achieve a better mixture ratio, such as... Figure 2As shown, a second nut 5 is fixed on the chassis 1 of this utility model. The nozzle 31 is fitted into the second nut 5 via a second thread. The second nut 5 supports the ejector tube 32. An ejector hole 33 is provided on the side wall of the ejector tube 32, allowing the nozzle 31 to be inserted into it. By screwing the second thread in and out, the insertion distance of the nozzle 31 into the ejector tube 32 can be adjusted, thereby changing the effective flow area of ​​the ejector hole 33 and adjusting the amount of ejected air mixed in, thus making it suitable for different atmospheric environments with varying oxygen content and pressure. All ejector tubes 32 are also fixed on the integrated plate 2, with the first thread located above the integrated plate 2. This enhances the stability of the ejector tube 32 installation and allows for unified handling of all ejector tubes 32 via the integrated plate 2, saving time and effort and facilitating the disassembly and assembly of the ejector tubes 32 in the burner.

[0032] like Figure 6 As shown, the flame stabilizer cap 34 is provided with a bottom ring 341, a lower hollow body, a flame-gathering tube 344, an upper hollow body, and a cover plate 347 connected sequentially from bottom to top. The bottom ring 341 is threaded to the ejector tube 32. The lower hollow body has a lower hollow hole 343, and the upper hollow body has an upper hollow hole 346. The lower hollow body is flared from bottom to top, and the upper hollow body is flared from top to bottom. This allows air to be drawn in from below and to the side of the lower hollow hole 343, further increasing the amount of air drawn in and facilitating the complete combustion of the gas. The flared shape of the upper hollow body from top to bottom easily creates a reflective airflow that disturbs the upward airflow, further enhancing the flame stabilization effect. Specifically, the lower hollow body is provided with three lower support bodies 342. The lower end of the lower support body 342 is connected to the bottom ring 341 and the upper end is connected to the flame-gathering tube 344. A lower hollow hole 343 is formed between two adjacent lower support bodies 342. The upper hollow body is provided with three upper support bodies 345. The lower end of the upper support body 345 is connected to the flame-gathering tube 344 and the upper end is connected to the flame-distributing cover. An upper hollow hole 346 is formed between two adjacent upper support bodies 345. The lower and upper hollow bodies are in the form of support bodies, which simplifies the structure and increases the proportion of hollow holes, thereby enhancing its performance. The flame stabilizer 34 allows the mixed gas ejected from the injector 32 to first be drawn into the lower perforation 343, and then, under the converging effect of the flame gatherer 344, maintains a relatively high upward flow velocity, drawing air in again from the lower part of the upper perforation 346. This facilitates complete combustion of the gas. Furthermore, the cover plate 347 acts as a barrier, enhancing the mixing of the gas and air, and reflecting some of the gas, reducing flame fluctuations and stabilizing the flame. A flow guide cone 348 is also provided on the bottom wall of the cover plate 347, which both slows down the gas flow under the barrier and guides the direction of airflow, promoting a more stable combustion flame.

[0033] This utility model also provides an air supply hole 6 on the chassis 1. The upper end of the air supply hole 6 is connected to the top wall of the chassis 1, and the lower end is connected to the bottom wall of the chassis 1. This allows the air supply hole 6 to penetrate the top and bottom walls of the chassis 1, providing a sufficient air environment. This allows the injector tube 32 to inject a sufficient amount of air under the high-speed flow of the gas, thus laying the foundation for achieving a better mixing ratio between the gas and air.

[0034] In addition to using the first threaded connection as the first adjustment structure and the second threaded connection as the second adjustment structure, the first adjustment structure and the second adjustment structure can also adopt a lifting frame. The lifting structure of the lifting frame can also drive the flame stabilizer 34 and the nozzle 31 to rise and fall, thereby achieving their adjustment.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A self-suction burner with adjustable heat output, comprising a chassis, a gas distribution chamber in the chassis, and three or more combustion components mounted on the chassis. Each combustion component includes a nozzle, an ejector tube, and a flame stabilizer cap arranged coaxially, the nozzle, ejector tube, and flame stabilizer cap being connected sequentially from bottom to top, and the nozzle communicating with the gas distribution chamber, characterized in that: The flame stabilizer is connected to the ejector tube via a first adjustment structure, which can change the distance between the top of the ejector tube and the top of the flame stabilizer.

2. The adjustable-power self-suction burner according to claim 1, characterized in that: The adjustment structure is a first threaded connection, and the flame stabilizer cap is connected to the ejector tube via the first thread; or The first adjustment structure is a lifting frame, which can drive the flame stabilizer cap to rise and fall.

3. The adjustable-power self-suction burner according to claim 2, characterized in that: A first nut is fitted onto the first thread, and the first nut can support the flame stabilizer cap.

4. The adjustable-power self-suction burner according to claim 3, characterized in that: It also includes an integrated disc, on which all ejector tubes are fixed, with the first thread located above the integrated disc.

5. The adjustable-power self-suction burner according to any one of claims 1 to 4, characterized in that: It also includes a second adjustment structure, wherein an ejector hole is provided on the side wall of the ejector tube, and the nozzle can be inserted into the ejector tube. The second adjustment structure can change the distance at which the nozzle is inserted into the ejector tube.

6. The adjustable-power self-suction burner according to claim 5, characterized in that: The second adjustment structure is a second threaded connection. A second nut is fixed on the chassis. The nozzle is fitted into the second nut through the second thread, and the second nut supports the ejector tube.

7. The adjustable-power self-suction burner according to any one of claims 1 to 4, characterized in that: The flame stabilizer cap includes a bottom ring, a lower hollow body, a flame-gathering tube, an upper hollow body, and a cover plate connected sequentially from bottom to top. The bottom ring is fitted onto the ejector tube, the lower hollow body has a lower hollow hole, and the upper hollow body has an upper hollow hole.

8. The adjustable-power self-suction burner according to claim 7, characterized in that: The bottom wall of the cover plate is provided with a drainage cone.

9. The adjustable-power self-suction burner according to any one of claims 1 to 4, characterized in that: The chassis has air intake holes, with the upper end of the air intake holes connected to the top wall of the chassis and the lower end connected to the bottom wall of the chassis.

10. A stove, comprising a burner, characterized in that: The burner is the adjustable self-suction burner according to any one of claims 1 to 9.

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