Gas nozzle and gas stove

Abstract

The utility model provides a gas nozzle and a gas stove, and relates to the technical field of stoves. The gas nozzle comprises a nozzle body, a nozzle inlet and a nozzle outlet are formed in the two ends of the nozzle body respectively, and an injection cavity is formed in the nozzle body. The gas nozzle further comprises a zero-time injection hole, the zero-time injection hole penetrates through the nozzle body, and the two ends of the zero-time injection hole communicate with the injection cavity and the outside correspondingly. The included angle between the zero-time injection hole and the extending direction of the nozzle body is not larger than 90 degrees, the situation that the zero-time injection direction is perpendicular to the primary injection direction is avoided, then the situation that an air curtain hinders primary injection is avoided, meanwhile, the rotation inclination angle is set for the zero-time injection hole in the radial direction of the nozzle body, and therefore the zero-time injection hole better conforms to the air flowing direction, and the injection efficiency is improved. The loss of momentum and flow is reduced, zero-time injection and primary injection are matched to form a synergistic effect and promote each other, and the injection capacity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the range, in particular to a gas nozzle and gas stove. BACKGROUND

[0002] The existing straight insertion valve combustor is prone to liquefied gas yellow fire of outer ring, and the injection capacity is insufficient. Usually, the injection capacity is improved by increasing zero injection holes on the outer ring nozzle. The existing structure nozzle cross-flow port is too far from the end face of the injection pipe, which greatly reduces the primary injection performance. Although the zero injection is increased, the comprehensive injection performance is not significantly improved.

[0003] The injection direction of the existing zero injection hole is perpendicular to the main jet, which is easy to form a wind curtain and cause momentum and flow loss. When the angle between the zero injection direction and the primary injection direction is a right angle, the flow direction of the injected air will rotate clockwise or counterclockwise. The existing center zero injection hole does not have a rotational inclination angle in the radial direction, which is easy to cause momentum and flow loss. SUMMARY

[0004] The utility model wants to solve the technical problem of the prior art gas nozzle, which is prone to momentum and flow loss, and poor injection effect. A gas nozzle and gas stove are provided.

[0005] The utility model solves the above technical problems by the following technical solutions:

[0006] The utility model provides a kind of gas nozzle, the gas nozzle includes nozzle body, and the both ends of the nozzle body are equipped with nozzle inlet and nozzle outlet respectively, and the nozzle body is equipped with injection cavity inside;

[0007] The gas nozzle further includes zero injection hole, the zero injection hole penetrates the nozzle body, and the both ends of the zero injection hole are communicated with the injection cavity and the outside respectively, the angle between the extension direction of the zero injection hole and the nozzle body is not more than 90 °, and in the radial direction of the nozzle body, the zero injection hole has rotational inclination angle.

[0008] In the scheme, the two ends of the nozzle body are respectively provided with a nozzle inlet and a nozzle outlet, the nozzle body is provided with an injection cavity, the zero-order injection hole penetrates the nozzle body, and the two ends of the zero-order injection hole are respectively communicated with the injection cavity and the outside. Air enters the injection cavity from the outside through the zero-order injection hole, fuel gas enters the injection cavity from the nozzle inlet, zero-order injection is carried out in the injection cavity through the zero-order injection hole, and then one-order injection is carried out by being sprayed out from the nozzle outlet. By setting the angle between the zero-order injection hole and the extension direction of the nozzle body to be not greater than 90°, the direction of the zero-order injection is avoided to be perpendicular to the direction of the one-order injection, and then the formation of the air curtain to hinder the one-order injection is avoided. At the same time, a rotation inclination angle is arranged for the zero-order injection hole in the radial direction of the nozzle body, so that the zero-order injection hole is more compliant with the flow direction of the air, and the loss of momentum and flow is reduced. The zero-order injection and the one-order injection cooperate to form a synergistic effect, promote each other, and improve the injection capacity.

[0009] Preferably, in the radial direction of the nozzle body, the zero-order injection hole rotates clockwise.

[0010] In the scheme, by rotating the zero-order injection hole clockwise in the radial direction of the nozzle body, the zero-order injection hole is more compliant with the flow direction of the injection air, the momentum and flow loss are reduced, and the injection capacity is further improved.

[0011] Preferably, the angle between the zero-order injection hole and the extension direction of the nozzle body is 30°.

[0012] In the scheme, by setting the angle between the zero-order injection hole and the extension direction of the nozzle body to be 30°, on the one hand, the direction of the zero-order injection hole and the one-order injection is avoided to be perpendicular, and the formation of the air curtain to hinder the one-order injection is avoided. On the other hand, the angle is also avoided to be too small to cause poor zero-order injection effect, and the injection capacity is further improved.

[0013] Preferably, in the direction from the nozzle inlet to the nozzle outlet, the zero-order injection hole extends from the outside of the nozzle body to the inside of the nozzle body.

[0014] In the scheme, in the direction from the nozzle inlet to the nozzle outlet, by extending the zero-order injection hole from the outside of the nozzle body to the inside of the nozzle body, it is more convenient for the air outside the nozzle body to flow to the injection cavity inside the nozzle body, and the injection capacity is further improved.

[0015] Preferably, a plurality of zero-order injection holes are uniformly and spaced apart in the circumferential direction of the nozzle body.

[0016] In the scheme, by uniformly and spaced apart a plurality of zero-order injection holes in the circumferential direction of the nozzle body, the plurality of zero-order injection holes can uniformly inject in the circumferential direction of the nozzle body, and the injection effect can be more stable.

[0017] Preferably, the rotation inclination angles of the plurality of zero-stage injection holes are the same in the radial direction of the nozzle body.

[0018] In the present scheme, by setting the rotation inclination angles of the plurality of zero-stage injection holes, the zero-stage injection holes are more in line with the air injection direction, and the rotation inclination angles of the plurality of zero-stage injection holes are the same, so that the air injection is more stable, and the injection capacity is further improved.

[0019] Preferably, the nozzle body is arranged at one end of the gas nozzle close to the nozzle outlet.

[0020] In the present scheme, by arranging the nozzle body at one end of the gas nozzle close to the nozzle outlet, it is avoided that the nozzle body is too far away from the nozzle outlet, so that the nozzle cross-section is too far away from the end face of the injection pipe, the primary injection capacity is improved, and the injection effect of the nozzle body is improved.

[0021] The utility model also provides a gas stove, the gas stove includes above -mentioned gas nozzle and injection pipe, the gas nozzle is connected in injection pipe.

[0022] In the present scheme, the nozzle body is connected to the injection pipe, the gas is injected into the injection pipe from the nozzle body, and the zero-stage injection and the primary injection are carried out, so that the injection effect of the gas stove is improved.

[0023] Preferably, the nozzle body further comprises a protrusion, the protrusion comprises a side wall, and in the direction from the nozzle inlet to the nozzle outlet, the side wall extends from the radial outer side of the injection pipe to the radial inner side of the injection pipe.

[0024] In the present scheme, in the direction from the nozzle inlet to the nozzle outlet, by extending the side wall from the radial outer side of the injection pipe to the radial inner side, the side wall can guide the flow direction of the outside gas, so that the air on the radial outer side of the injection pipe flows to the radial inner side more easily, and the primary injection effect is improved.

[0025] Preferably, the zero-stage injection hole is arranged on the protrusion, and the extension direction of the zero-stage injection hole is consistent with the extension direction of the side wall.

[0026] In the present scheme, by making the extension direction of the zero-stage injection hole consistent with the extension direction of the side wall, the zero-stage injection hole can more easily flow the air on the radial outer side of the injection pipe to the radial inner side, so that the zero-stage injection effect is better.

[0027] The positive progress effect of the utility model is that:

[0028] The nozzle body is provided with a nozzle inlet and a nozzle outlet at two ends respectively, and an injection cavity is arranged in the nozzle body, and a zero-order injection hole penetrates through the nozzle body, and two ends of the zero-order injection hole are communicated with the injection cavity and the outside respectively, air enters the injection cavity from the outside through the zero-order injection hole, and gas enters the injection cavity from the nozzle inlet, and the gas is subjected to zero-order injection through the zero-order injection hole in the injection cavity and then is sprayed from the nozzle outlet for first-order injection. By setting the zero-order injection hole to have an included angle with the extension direction of the nozzle body of not more than 90°, the zero-order injection direction is prevented from being perpendicular to the first-order injection direction, thereby avoiding the formation of a wind curtain to hinder the first-order injection, and a rotation inclination angle is arranged for the zero-order injection hole in the radial direction of the nozzle body, so that the zero-order injection hole is more in line with the air flow direction, the momentum and flow loss are reduced, the zero-order injection and the first-order injection are cooperated to form a synergistic effect, and the injection capacity is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a part of the three-dimensional structure schematic diagram of the gas stove according to an embodiment of the utility model.

[0030] Figure 2 It is a part of the sectional view of the gas stove according to an embodiment of the utility model.

[0031] Figure 3 It is a three-dimensional structure schematic diagram of the gas nozzle according to an embodiment of the utility model.

[0032] Figure 4 It is a sectional view of the gas nozzle according to an embodiment of the utility model.

[0033] Figure 5 It is a side view of the gas nozzle according to an embodiment of the utility model.

[0034] BRIEF DESCRIPTION OF DRAWINGS:

[0035] Gas stove 100

[0036] Injection pipe 110

[0037] Gas nozzle 120

[0038] Nozzle body 200

[0039] Injection cavity 210

[0040] Projection 220

[0041] Side wall 221

[0042] End face 222

[0043] Zero-order injection hole 230

[0044] Nozzle inlet 300

[0045] Nozzle outlet 400

[0046] Extension direction x of nozzle body

[0047] Rotation direction y of zero-stage injection hole DETAILED DESCRIPTION

[0048] The utility model will be further illustrated by way of examples below, but the utility model is not limited in the following examples.

[0049] As Figure 1 shown, the embodiment provides a gas stove 100, the gas stove 100 includes gas nozzle 120 and injection pipe 110, and the gas nozzle 120 is connected to the injection pipe 110.

[0050] As Figures 2-5 shown, the gas nozzle 120 includes nozzle body 200, and the both ends of the nozzle body 200 are respectively provided with nozzle inlet 300 and nozzle outlet 400, and the nozzle body 200 is provided with injection cavity 210. The gas nozzle 120 further includes zero-stage injection hole 230, and the zero-stage injection hole 230 penetrates the nozzle body 200, and the both ends of the zero-stage injection hole 230 are respectively communicated with the injection cavity 210 and the outside. Air enters the injection cavity 210 from the outside through the zero-stage injection hole 230, and gas enters the injection cavity 210 from the nozzle inlet 300, is zero-stage injected in the injection cavity 210 through the zero-stage injection hole 230, and is then sprayed from the nozzle outlet 400 to be one-stage injected.

[0051] The included angle between the zero-stage injection hole 230 and the extension direction x of the nozzle body 200 is not greater than 90°, as Figure 2 shown, the included angle between the zero-stage injection hole 230 and the extension direction x of the nozzle body 200 is A, by setting A to be not greater than 90°, the zero-stage injection direction is avoided from being perpendicular to the one-stage injection direction, and then the wind curtain is avoided from being formed to hinder the one-stage injection.

[0052] As Figure 5 shown, in the radial direction of the nozzle body 200, the zero-stage injection hole 230 has a rotation inclination angle, so that the zero-stage injection hole 230 is more compliant with the air flow direction, the loss of momentum and flow is reduced, the zero-stage injection and the one-stage injection are cooperated to form a synergistic effect, are mutually promoted, and the injection capacity is improved.

[0053] In the embodiment, Figure 5The rotation direction y of the zero-stage injection hole 230 is shown in the radial direction of the nozzle body 200, and the zero-stage injection hole 230 is inclined to extend in the clockwise direction, that is, in the direction from the nozzle outlet 400 to the nozzle inlet 300, so that the zero-stage injection hole 230 is more consistent with the flow direction of the injection air, reduces the momentum and flow loss, and further improves the injection capacity. In other embodiments, the zero-stage injection hole 230 can also be inclined to extend in the counterclockwise direction, and those skilled in the art can select according to the specific circumstances.

[0054] In this embodiment, the angle between the zero-stage injection hole 230 and the extension direction x of the nozzle body 200 is 30°, which can avoid the direction of the zero-stage injection hole 230 and the primary injection being perpendicular, avoid forming a wind curtain to hinder the primary injection, and also avoid the angle being too small to cause poor zero-stage injection effect, thereby further improving the injection capacity. In other embodiments, other angles between the zero-stage injection hole 230 and the extension direction x of the nozzle body 200 that are considered suitable by those skilled in the art can also be selected.

[0055] In the direction from the nozzle inlet 300 to the nozzle outlet 400, the zero-stage injection hole 230 extends from the outside of the nozzle body 200 to the inside of the nozzle body 200, thereby making it more convenient for the air outside the nozzle body 200 to flow to the inside of the nozzle body 200, and further improving the injection capacity.

[0056] The plurality of zero-stage injection holes 230 are uniformly spaced in the circumferential direction of the nozzle body 200, so that the plurality of zero-stage injection holes 230 can uniformly inject in the circumferential direction of the nozzle body 200, and the injection effect can be more stable.

[0057] In the radial direction of the nozzle body 200, the rotation inclination angles of the plurality of zero-stage injection holes 230 are the same. By setting the rotation inclination angles of the plurality of zero-stage injection holes 230, the zero-stage injection hole 230 is more consistent with the air injection direction, the rotation inclination angles of the plurality of zero-stage injection holes 230 are the same, the air injection is more stable, and the injection capacity is further improved.

[0058] The nozzle body 200 is arranged at one end of the gas nozzle 120 close to the nozzle outlet 400, which avoids the nozzle body 200 being too far from the nozzle outlet 400, causing the nozzle flow port to be too far from the end surface 222 of the injection pipe 110, improves the primary injection capacity, and improves the injection effect of the nozzle body 200.

[0059] The nozzle inlet 300 includes an inlet section, a contraction section, and an outlet section arranged in sequence, the inlet section is connected to the gas pipe, the diameter of the inlet section is greater than that of the outlet section, the diameter of the contraction section gradually decreases, and the outlet section is connected to the injection cavity 210, thereby improving the speed of the gas ejected from the outlet section and improving the injection capacity.

[0060] The nozzle body 200 is further provided with a protrusion 220, the protrusion 220 comprises a side wall 221, the side wall 221 extends from the radial outer side of the injection pipe 110 to the radial inner side of the injection pipe 110 in the direction from the nozzle inlet 300 to the nozzle outlet 400, so that the side wall 221 can guide the flow direction of the outer side gas, and it is more convenient to flow the air radially outward of the injection pipe 110 to the radial inner side, and the primary injection effect is improved.

[0061] The zero injection hole 230 is arranged on the protrusion 220, the extension direction of the zero injection hole 230 is consistent with the extension direction of the side wall 221, so that the zero injection hole 230 is more convenient to flow the air radially outward of the injection pipe 110 to the radial inner side, and the zero injection effect is better.

[0062] The protrusion 220 further comprises an end face 222, the air inlet of the zero injection hole 230 is arranged on the end face 222, and the end face 222 faces the flow direction of the air, so that the zero injection hole 230 is more convenient to inject, and the injection effect is further improved.

[0063] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship of the device or element in the normal use, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element must have a particular orientation at any time, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model in this respect.

[0064] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that this is only an example, the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, and these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A gas burner, characterized in that The gas nozzle comprises a nozzle body, two ends of the nozzle body are respectively provided with a nozzle inlet and a nozzle outlet, and an injection cavity is arranged in the nozzle body; The gas nozzle further comprises a zero-order injection hole, the zero-order injection hole penetrates through the nozzle body, two ends of the zero-order injection hole are respectively communicated with the injection cavity and the outside, an angle between the extension direction of the zero-order injection hole and the nozzle body is not greater than 90°, and the zero-order injection hole has a rotation inclination angle in the radial direction of the nozzle body.

2. The gas injector of claim 1, wherein In the radial direction of the nozzle body, the zero-order injection hole rotates clockwise.

3. The gas injector of claim 1, wherein The angle between the extension direction of the zero-order injection hole and the nozzle body is 30°.

4. The gas injector of claim 1, wherein, In the direction from the nozzle inlet to the nozzle outlet, the zero-order injection hole extends from the outside of the nozzle body to the inside of the nozzle body.

5. The gas injector of claim 1 wherein, A plurality of zero-order injection holes are uniformly spaced in the circumferential direction of the nozzle body.

6. The gas injector of claim 5, wherein In the radial direction of the nozzle body, the rotation inclination angles of the plurality of zero-order injection holes are the same.

7. The gas injector of claim 1 wherein, The nozzle body is arranged at one end of the gas nozzle close to the nozzle outlet.

8. A gas hob, characterized in that The gas stove comprises the gas nozzle and the injection pipe, and the gas nozzle is connected to the injection pipe.

9. The gas hob according to claim 8, characterized in that The nozzle body is further provided with a protrusion, the protrusion comprises a side wall, and in the direction from the nozzle inlet to the nozzle outlet, the side wall extends from the radial outside of the injection pipe to the radial inside of the injection pipe.

10. The gas hob according to claim 9, characterized in that The zero-order injection hole is arranged on the protrusion, and the extension direction of the zero-order injection hole is consistent with the extension direction of the side wall.

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