Burner capable of draining water and increasing oxygen and gas stove

Abstract

The furnace end comprises a furnace shell assembly, a furnace core and an ignition induction needle assembly, the furnace shell assembly comprises a furnace shell body provided with a first through hole, the furnace core is installed on the furnace shell body, the furnace core is provided with a second through hole, and the ignition induction needle assembly is installed on the furnace shell body. The ignition induction needle assembly penetrates through the first through hole and the second through hole, the upper portion of the ignition induction needle assembly is exposed out of the second through hole, the furnace core is provided with an annular groove surrounding the second through hole, a liquid outlet is formed in the bottom of the annular groove, a water drainage hole is formed in the furnace shell body, an opening in the upper end of the water drainage hole is connected with the liquid outlet, and the water drainage hole is connected with an air supplementing hole. And the air supplement hole is connected with a fan. Smoke in the cooking range is sealed by the aid of air pressure blown to the drain hole by the fan, normal drainage of the drain hole is not affected, secondary oxygen supplementation of the furnace end is realized by the aid of the drain hole, and fuel gas can be combusted more completely.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas stoves. Background Art

[0002] In order to avoid water accumulation in the furnace shell, which affects the normal use of the induction needle and the ignition needle. Referring to the Chinese utility model patent with the authorization announcement number of 208720214U, a new type of energy-saving furnace head is disclosed, which includes a furnace shell, a furnace core is connected and arranged with the furnace shell, a fire suppressing cap and a fire suppressing cover are connected and arranged with the furnace core, a plurality of air outlet holes are arranged on the fire suppressing cover, a drain hole is arranged at the bottom of the furnace core, a boss is integrally arranged in the middle of the bottom of the furnace core, and corresponding induction needle holes, ignition needle holes, long flame outlet holes and air supplement holes are arranged through the boss body. The drain hole is arranged at the bottom position between the inner wall of the furnace core and the boss. A first step is arranged in the middle of the inner wall of the furnace core, and a plurality of air inlet holes are evenly arranged on the surface of the first step. A second step is arranged at the edge of the first step, and the fire suppressing cap is placed on the second step. The above technical solution can completely discharge water through the drain hole and will not affect the normal use of the induction needle and the ignition needle. Among them, when the oxygen supply of the long flame is insufficient, the air supplement hole can effectively absorb air to ensure that the long flame is always burning. However, the flue gas in the stove may affect the effective absorption of air by the air supplement hole, resulting in insufficient oxygen supply for the long flame. Content of the Utility Model

[0003] Aiming at the defects of the prior art, the technical problem to be solved by the utility model is to provide a furnace head and a gas stove that can drain water and increase oxygen, avoid insufficient oxygen supply of the furnace head, and make the gas burn more completely.

[0004] To solve the above technical problem, the utility model adopts the following technical solutions:

[0005] First, a furnace head that can drain water and increase oxygen is provided, which includes a furnace shell assembly, a furnace core and an ignition and induction needle assembly. The furnace shell assembly includes a furnace shell body provided with a first through hole. The furnace core is installed on the furnace shell body. The furnace core is provided with a second through hole. The ignition and induction needle assembly passes through the first through hole and the second through hole and the upper part exposes the second through hole. The furnace core is provided with a circumferential groove around the second through hole. A liquid discharge port is arranged at the bottom of the circumferential groove. A drain hole is arranged on the furnace shell body. The upper end hole of the drain hole is connected to the liquid discharge port. The drain hole is connected with an air supplement hole. The air supplement hole is connected with a fan. The fan sends external air into the furnace core along the air supplement hole, the drain hole and the liquid discharge port for secondary oxygen supplement.

[0006] Preferably, the drain hole vertically penetrates the furnace shell body; and / or, the projection of the liquid discharge port on the horizontal plane is close to the ignition and induction needle assembly, so that the wind blown upward from the liquid discharge port blows to the upper part of the ignition and induction needle assembly for cooling.

[0007] Preferably, the air supply hole extends horizontally and is vertically communicated with the drain hole.

[0008] Preferably, a positioning boss is provided at the bottom of the liquid discharge port, and a positioning groove is provided at the upper hole opening of the drain hole, and the positioning boss is matched with the positioning groove.

[0009] Preferably, the furnace shell body is provided with a first circumferential concave cavity, and the first circumferential concave cavity is connected with a main fire nozzle; the first through hole is connected with a small fire air supply hole, and the small fire air supply hole is connected with a small fire nozzle.

[0010] Preferably, the ignition induction needle assembly is inserted into the sleeve, an internal threaded hole section is provided at the bottom of the first through hole, and the sleeve is threadedly connected with the internal threaded hole section.

[0011] Preferably, a lower protruding part is provided at the bottom of the first through hole below the internal threaded hole section, and the lower protruding part is connected with a fixing nut.

[0012] Preferably, an induction ignition needle air inlet hole is connected to the bottom of the first through hole below the internal threaded hole section.

[0013] Preferably, the furnace shell assembly further includes a furnace shell upper ring installed on the furnace shell body, and a fire suppressing cover is installed above the furnace core.

[0014] In addition, a gas stove is also provided, and the gas stove is provided with the above-mentioned burner head.

[0015] In the technical solution adopted by the present invention, since the drain hole is connected with an air supply hole, and the air supply hole is connected with a blower, the air pressure blown by the blower to the drain hole seals the flue gas in the stove, but does not affect the normal drainage of the drain hole. Secondary oxygen supply to the burner head is also achieved through the drain hole, enabling the gas to burn more completely.

[0016] The specific technical solution adopted by the present invention and the beneficial effects brought by it will be detailedly disclosed in the following specific implementation manners in combination with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the drawings and specific implementation manners:

[0018] Figure 1 is a top view of the burner head of the present invention;

[0019] Figure 2 is Figure 1 the A-A cross-sectional view in

[0020] Figure 3 is Figure 1 the B-B cross-sectional view in

[0021] Figure 4 isFigure 1 Cross-sectional view of C-C;

[0022] Figure 5 is Figure 1 Cross-sectional view of D-D;

[0023] Figure 6 Side view of the burner head of the present utility model (with the furnace shell cover installed);

[0024] Figure 7 Side view of the burner head of the present utility model (without the furnace shell cover installed);

[0025] Figure 8 A-A cross-sectional view of another burner head;

[0026] Figure 9 Structural schematic diagram of the pressure equalizing plate;

[0027] Figure 10 Structural schematic diagram of the filter plate;

[0028] Figure 11 Exploded structural schematic diagram of another burner head;

[0029] In the figure: ignition induction needle assembly 1, furnace shell assembly 2, furnace shell main body 21, first through hole 211, lower protruding part 2111, upper protruding part 2112, first circumferential concave cavity 212, drain hole 213, positioning groove 2131, air supply hole 214, small fire air supply hole 215, induction ignition needle air inlet hole 216, inner ring positioning ring surface 217, furnace shell upper ring 22, lower positioning step 221, upper positioning step 222, outer ring positioning ring surface 223, furnace shell cover 23, sleeve 24, fixing nut 25, snap ring 251, main fire nozzle 26, extension pipe 27, small fire nozzle 28, air supply cavity 29, furnace core 3, second through hole 31, circumferential groove 32, liquid discharge port 33, positioning boss 331, positioning convex ring 34, upper outer ring 35, third through hole 351, center boss 36, small fire joint 37, fire suppressing cover 4, axial convex ring 41, radial convex ring 42, large fire holes 43, pressure equalizing plate 5, pressure equalizing holes 51, wind deflector 52, fourth through hole 53, filter plate 6, filter holes 61, avoidance notch 62, fire suppressing cap 7. Detailed implementation manners

[0030] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0031] Those skilled in the art can understand that, without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0032] The terms used in the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0033] In the present utility model, unless otherwise clearly defined and limited, the terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0035] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0036] Such as Figures 1 to 7As shown in the figure, a burner head includes a burner housing assembly 2, a burner core 3, and an ignition and sensing needle assembly 1. The burner housing assembly 2 includes a burner housing main body 21 provided with a first through hole 211. The burner core 3 is installed on the burner housing main body 21. The burner core 3 is provided with a second through hole 31. The ignition and sensing needle assembly 1 passes through the first through hole 211 and the second through hole 31 and the upper part thereof exposes out of the second through hole 31. The burner core 3 is provided with a circumferential groove 32 around the second through hole 31. A liquid discharge port 33 is provided at the bottom of the circumferential groove 32. A drain hole 213 is provided on the burner housing main body 21. The upper end orifice of the drain hole 213 is connected to the liquid discharge port 33. The drain hole 213 is connected with an air supply hole 214. The air supply hole 214 is connected to a blower. The blower sends external air into the burner core along the air supply hole, the drain hole and the liquid discharge port for secondary oxygen supply.

[0037] In the above technical solution, since the drain hole is connected with an air supply hole and the air supply hole is connected to a blower, the wind pressure blown by the blower to the drain hole is used to seal the flue gas in the stove, but it does not affect the normal drainage of the drain hole. Moreover, secondary oxygen supply can be carried out for the burner head through the drain hole, enabling the gas to burn more completely.

[0038] It can be understood that the liquid discharge port can also be close to the ignition and sensing needle assembly. Specifically, as Figure 1 shown, from the projection of the liquid discharge port 33 and the ignition and sensing needle assembly 1 on the horizontal plane, the projection of the liquid discharge port 33 on the horizontal plane is close to the ignition and sensing needle assembly 1, so that the wind blown upward from the liquid discharge port blows to the upper part of the ignition and sensing needle assembly for cooling. Figure 1 As shown in the figure, the distance between the two is L. By reasonably designing the value of L (which can be determined according to tests), the blower can be used to blow external low-temperature air into the bottom of the sensing needle, reduce the temperature of the sensing needle, and increase the service life of the sensing needle.

[0039] Optionally, as Figure 3 shown, the drain hole 213 penetrates the burner housing main body 21 vertically, and the air supply hole 214 extends horizontally and is vertically connected to the drain hole 213 at a position close to the bottom of the drain hole. In this way, the water discharged from the burner head falls vertically along the drain hole and will not enter the air supply hole. Even when draining water, external air can be sent into the burner core along the air supply hole, the drain hole and the liquid discharge port.

[0040] Furthermore, a central boss 36 is provided at the upper center of the burner core 3, and the second through hole 31 penetrates upward through the central boss 36.

[0041] In one embodiment, a positioning boss 331 is provided at the bottom of the liquid discharge port 33, and a positioning groove 2131 is provided at the upper end orifice of the drain hole. The positioning boss 331 is matched with the positioning groove 2131, which can ensure the alignment of the liquid discharge port and the drain hole.

[0042] In one of the embodiments, the ignition induction needle assembly 1 is inserted into the sleeve 24. An internal threaded hole section is provided at the bottom of the first through hole 211, and the sleeve 24 is threadedly connected to the internal threaded hole section. A lower protruding portion 2111 is provided below the internal threaded hole section at the bottom of the first through hole. The lower protruding portion 2111 is connected to a fixing nut 25. A clamping ring 251 is connected to the outer ring of the lower end of the ignition induction needle assembly (ceramic tube). After the fixing nut is tightened, the clamping ring 251 abuts against the bottom end of the lower protruding portion 2111 to position the lower end of the ignition induction needle assembly. Moreover, an upper protruding portion 2112 is provided at the top of the first through hole 211, and the inner ring of the lower end of the furnace core 3 is matched with the upper protruding portion 2112.

[0043] Referring to the prior art, the furnace shell assembly 2 further includes a furnace shell upper ring 22 installed on the furnace shell body 21. A fire suppression cover 4 is installed above the furnace core 3, and a large fire hole 43 is provided on the fire suppression cover 4. The fire suppression cover 4 is generally in the shape of a flared mouth with a larger upper part and a smaller lower part. An axial convex ring 41 is provided at the bottom end, and a radial convex ring 42 is provided at the upper end. The axial convex ring 41 is matched with a positioning convex ring 34 provided on the inner ring of the upper end of the furnace core, and the radial convex ring 42 is matched with an upper positioning step 222 provided on the inner ring of the upper end of the furnace shell upper ring 22. The outer ring 35 of the upper part of the furnace core is matched with a lower positioning step 221 provided on the inner ring of the middle part of the furnace shell upper ring 22. The furnace shell body 21 is provided with a first circumferential concave cavity 212, and the first circumferential concave cavity 212 is connected to a main fire nozzle 26. The main fire nozzle 26 is connected to an extension pipe 27 extending towards the first circumferential concave cavity 212. The upper part of the furnace core 3 is provided with an upper outer ring 35, and a third through hole 351 is provided on the upper outer ring 35, which communicates with the first circumferential concave cavity 212 downward and with the outer ring of the fire suppression cover upward. The first through hole 211 is connected to a small fire air supply hole 215, and the small fire air supply hole 215 is connected to a small fire nozzle 28. Through the first through hole and the second through hole, the small fire air supply hole communicates with the inside of the furnace core. The bottom of the first through hole is connected to an induction ignition needle air inlet hole 216 below the internal threaded hole section, and communicates with the inside of the furnace core through the sleeve. A protruding portion is provided on the side of the furnace shell body 21, and a supplementary air cavity 29 is provided on the protruding portion. The outer ports of the air supply hole 214 and the induction ignition needle air inlet hole 216 are both located in the supplementary air cavity 29. The supplementary air cavity has a lateral opening and is connected to a furnace shell cover plate 23. The main fire nozzle 26 and the small fire nozzle 28 are threadedly connected to the furnace shell cover plate 23.

[0044] In addition, the structure of the ignition induction needle assembly can refer to the prior art. The ignition induction needle assembly 1 includes a ceramic tube, an ignition needle and an induction needle connected to the ceramic tube.

[0045] As can be seen from the above description, the third through hole 351 provided on the upper outer ring 35 communicates downward with the first circumferential concave cavity and upward with the outer ring of the fire suppression cover. Since the gas mixing space between the upper outer ring 35 and the first circumferential concave cavity 212 is relatively large and the wind pressure distribution is uneven, it is impossible to ensure uniform combustion of all the fire holes on the fire suppression cover. To solve this problem, as Figures 8 to 11 shown, in another burner head structure, a pressure equalizing plate 5 is installed at the upper port of the first circumferential concave cavity 212, and the pressure equalizing plate 5 is provided with pressure equalizing holes 51 for evenly distributing the wind pressure. The air and gas are mixed to form an air-gas mixture, and then pass through the pressure equalizing plate and the evenly distributed pressure equalizing holes to evenly distribute the wind pressure into the combustion chamber. The air-gas mixture burns in the combustion chamber, and the generated flame is evenly distributed and burns in all the fire holes on the fire suppression cover.

[0046] Preferably, corresponding to the shape of the upper port of the first circumferential concave cavity 212, the pressure equalizing plate 5 is circular, and the pressure equalizing holes 51 are evenly distributed along the circumference of the pressure equalizing plate, so as to evenly distribute the wind pressure in the circumferential direction, and then pass through the third through hole 351, thereby ensuring uniform combustion of all the fire holes on the fire suppression cover.

[0047] Furthermore, the pressure equalizing holes 51 are elongated holes extending in the radial direction, so as to evenly distribute the wind pressure in the radial direction. A wind baffle 52 is provided on the lower side of the pressure equalizing hole, which extends downward from one side (the width side of the elongated hole) in the circumferential direction of the pressure equalizing hole, and can direct the wind pressure to the pressure equalizing hole, and also has the function of isolating the wind pressure on adjacent pressure equalizing holes.

[0048] Preferably, the pressure equalizing plate 5 is a sheet metal part, so that the pressure equalizing holes 51 and the wind baffle 52 are integrally formed by stamping, and the sheet metal part has high structural strength and low processing cost.

[0049] In addition, a fourth through hole 53 is provided on the pressure equalizing plate 5 corresponding to the position of the drain port. An inner ring positioning ring surface 217 is provided on the furnace shell main body 21 for inner ring positioning and cooperation with the pressure equalizing plate, and an outer ring positioning ring surface 223 is provided on the upper ring 22 of the furnace shell for outer ring positioning and cooperation with the pressure equalizing plate.

[0050] It can be understood that the third through holes 351 are also evenly distributed along the upper outer ring 35, which has a certain pressure equalizing effect, so that the flame is evenly distributed and burns in all the fire holes on the fire suppression cover.

[0051] After setting the liquid discharge port and the drain hole, in order to prevent impurities or foreign objects from blocking the drain hole, a filtering structure can also be provided above the liquid discharge port 33. Specifically, the filtering structure includes a filter plate 6 installed in the circumferential groove, and the filter plate 6 is provided with filter holes 61. Since a small fire joint 37 communicated with the first through hole 211 is installed on the furnace core 3, the filter plate can be fixed through the small fire joint. A relief notch 62 is provided at the position corresponding to the small fire joint 37 on the inner circle of the filter plate. A screw rod is provided at the lower part of the small fire joint 37, and the screw rod is connected with a nut. The nut is pressed on the upper side of the relief notch 62 and is fixed on the central boss 36.

[0052] It can be understood that since the liquid discharge port 33, the drain hole 213, and the air supply hole 214 are connected to form an air supply channel, through the distribution structure design of the filter holes 61, the filter holes 61 on the filter plate 6 also have the function of evenly distributing the air pressure.

[0053] In addition, referring to the prior art, a fire suppression cap 7 is provided at the center of the fire suppression cover 4 and is located above the ignition induction needle assembly 1.

[0054] As described above, only the specific embodiments of the present invention are provided, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the content described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A burner head capable of draining water and increasing oxygen, comprising a furnace shell assembly, a furnace core and an ignition and induction needle assembly. The furnace shell assembly includes a furnace shell body provided with a first through hole. The furnace core is installed on the furnace shell body. The furnace core is provided with a second through hole. The ignition and induction needle assembly passes through the first through hole and the second through hole and the upper part thereof exposes the second through hole. It is characterized in that, The furnace core is provided with a circumferential groove around the second through hole, a liquid discharge port is provided at the bottom of the circumferential groove, a drain hole is provided on the furnace shell body, the upper hole opening of the drain hole is connected to the liquid discharge port, the drain hole is connected with a makeup air hole, the makeup air hole is connected with a blower, and the blower sends external air into the furnace core along the makeup air hole, the drain hole and the liquid discharge port for secondary oxygen supply.

2. The burner capable of draining water and increasing oxygen according to claim 1, wherein The drain hole vertically penetrates the furnace shell body; and / or, the projection of the liquid discharge port on the horizontal plane is close to the ignition induction needle assembly, so that the wind blown upward from the liquid discharge port blows to the upper part of the ignition induction needle assembly for cooling.

3. The burner capable of draining water and increasing oxygen according to claim 2, characterized in that, The makeup air hole extends horizontally and is vertically communicated with the drain hole.

4. The burner capable of draining water and increasing oxygen according to claim 1, characterized in that, A positioning boss is provided at the bottom of the liquid discharge port, and a positioning groove is provided at the upper hole opening of the drain hole, and the positioning boss is matched with the positioning groove.

5. The burner capable of draining water and increasing oxygen according to claim 1, wherein The furnace shell body is provided with a first circumferential concave cavity, and the first circumferential concave cavity is connected with a main fire nozzle; the first through hole is connected with a small fire makeup air hole, and the small fire makeup air hole is connected with a small fire nozzle.

6. The burner capable of draining water and increasing oxygen according to claim 1, characterized in that, The ignition induction needle assembly is arranged in a sleeve, an internal thread hole section is provided at the bottom of the first through hole, and the sleeve is threadedly connected with the internal thread hole section.

7. The burner capable of draining water and increasing oxygen according to claim 6, wherein A lower protruding part is provided below the internal thread hole section at the bottom of the first through hole, and the lower protruding part is connected with a fixing nut.

8. A burner head capable of draining water and increasing oxygen according to claim 6, characterized in that, An induction ignition needle air inlet hole is connected below the internal thread hole section at the bottom of the first through hole.

9. The burner capable of draining water and increasing oxygen according to claim 1, characterized in that, The furnace shell assembly further includes a furnace shell upper ring installed on the furnace shell body, and a fire suppressing cover is installed above the furnace core.

10. A gas stove, characterized in that, The gas stove is provided with the burner head according to any one of claims 1 to 9.

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