CN214501232U - Nozzle and gas stove using same - Google Patents

Abstract

The utility model discloses a nozzle and a gas stove using the same, wherein the nozzle is used for the gas stove and comprises a nozzle body, a gas inlet section, an air inlet section and a mixing section; the gas inlet section and the mixing section are respectively arranged at two ends inside the nozzle body along the axial direction and are communicated with each other, the air inlet section is arranged on the circumferential surface of the nozzle body and is communicated with the mixing section, so that air enters in the air inlet direction tangent to the circumferential direction of the nozzle body, and forms vortex flow through the air inlet section, and the air is rotated in a spiral line to advance to the mixing section to be mixed with gas entering through the gas inlet section. The utility model discloses a nozzle forms the vortex through making the outside air get into the air section of advancing, and the vortex is the rotatory antedisplacement of helix to mixing section, mixes with the gas that gets into, and mixing path is spiral rising type, and mixing time is long, mixes more evenly, thoroughly, has effectively solved current nozzle because there is great resistance when the air inhales and influence the inspiratory problem of air, has guaranteed the combustion efficiency of gas.

Description

Nozzle and gas stove using same

Technical Field

The utility model belongs to the technical field of nozzle structure, concretely relates to nozzle and use its gas-cooker.

Background

At present, partial premixed air type and complete premixed air type are generally adopted by the burners of gas cooker products in China, the two burners can not be opened, a group of circular channels are processed in a cylindrical body in the basic structure of a traditional nozzle, each circular channel comprises an air inlet, a contraction hole, a throttling hole and an air outlet, a group of air inlets are uniformly formed between the throttling hole and the air outlet and on the vertical plane of the axis of the throttling hole around the axis of the throttling hole, the nozzle with the structure enables air to be absorbed and enter the nozzle with larger resistance, air suction can be influenced to a certain degree, the quantity of air sucked is insufficient, incomplete gas combustion of the gas cooker products is caused, CO in smoke is excessively discharged, the environment is polluted, and meanwhile, the combustion efficiency is also reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a nozzle gets into according to the direction tangent with nozzle body circumference through making the air, thereby effectively solves current nozzle because there is great resistance to influence the inspiratory problem of air when the air inhales.

Another object of the utility model is to provide a gas-cooker of using above-mentioned nozzle makes the air form the vortex through above-mentioned nozzle structure, is that the helix type advances and mixes with the gas, and the air mixes effectually with the gas, has guaranteed the combustion efficiency of gas.

The utility model adopts the technical proposal that:

a nozzle is used for a gas stove and comprises a nozzle body, a gas inlet section, an air inlet section and a mixing section; the gas inlet section and the mixing section are respectively arranged at two ends in the nozzle body along the axial direction and are communicated, and the air inlet section is arranged on the circumferential surface of the nozzle body and is communicated with the mixing section, so that air enters in an air inlet direction tangential to the circumferential direction of the nozzle body;

the air forms vortex through the air inlet section and advances to the mixing section in a spiral line rotation mode to be mixed with the fuel gas entering through the fuel gas inlet section.

Preferably, the air inlet section comprises a vortex forming part and an air inlet hole, the vortex forming part is axially arranged in the nozzle body and is positioned between the gas inlet section and the mixing section, the vortex forming part is communicated with the mixing section, and a plurality of air inlet holes communicated with the outside of the nozzle body are uniformly formed in the vortex forming part along the circumferential direction and used for enabling air to enter and form a vortex.

Preferably, vortex formation portion is the cylinder structure that one end was provided with the loudspeaker form recess of adduction, vortex formation portion is hollow structure, and keep away from the tip of loudspeaker form recess with mix the section intercommunication, advance the gas section and stretch into in the loudspeaker form recess, and run through its terminal surface and mix the section intercommunication.

Preferably, the trumpet-shaped groove is an arc trumpet-shaped structure or a straight trumpet-shaped structure which is sunken inwards.

Preferably, the air inlet hole is obliquely arranged.

Preferably, the air inlet hole is tangential to a trumpet surface of the trumpet groove.

Preferably, the number of the air inlet holes is 4-6.

Preferably, the gas inlet section comprises a gas inlet hole, a contraction hole and a spray hole which are sequentially communicated, the contraction hole is of a taper hole structure, the gas inlet hole and the spray hole are cylindrical holes, the gas inlet hole is communicated with the end face with the larger diameter of the contraction hole, and the spray hole is communicated with the mixing section.

Preferably, the nozzle body is externally provided with a thread.

The utility model discloses still protect a gas-cooker that has above-mentioned nozzle.

Compared with the prior art, the utility model discloses an axial both ends set up the gas section and the mixed section of advancing of intercommunication each other in the nozzle body, and the periphery setting along the nozzle body and the air section of advancing of mixed section intercommunication, make the external air get into according to the direction tangent with nozzle body circumference, and form the rotatory air current of one through the air section of advancing, the vortex promptly, the vortex is the spiral line rotation in the mixed section and goes forward, mix with the gas through advancing the gas section and getting into, the mixed route is spiral ascension type, mixing duration is long, it is more even to mix, thoroughly, effectively solved current nozzle because there is great resistance and influence the inspiratory problem of air when the air inhales, the combustion efficiency of gas has been guaranteed.

Drawings

Fig. 1 is an internal structure diagram of a nozzle provided in embodiment 1 of the present invention;

fig. 2 is a cross-sectional view of a nozzle according to embodiment 1 of the present invention, the cross-sectional view corresponding to the direction a-a in fig. 1;

fig. 3 is a diagram illustrating an operation process of a nozzle provided in embodiment 1 of the present invention;

fig. 4 is a working process diagram of a nozzle corresponding to the section of fig. 2 according to embodiment 1 of the present invention;

FIG. 5 is a view showing a structure of a conventional nozzle;

FIG. 6 is an internal structure view of a conventional nozzle;

fig. 7 is a diagram illustrating an operation of a conventional nozzle.

In the figure: 1. a nozzle body; 2. a gas inlet section; 21. an air inlet; 22. a shrink hole; 23. spraying a hole; 3. an air inlet section; 31. a vortex forming part; 32. an air inlet hole; 4. and (4) a mixing section.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention; that is, the specific embodiments herein are a subset of the embodiments in the present application and not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Example 1

The embodiment provides a nozzle, as shown in fig. 1-2, for a gas stove, comprising a nozzle body 1, a gas inlet section 2, an air inlet section 3 and a mixing section 4; the gas inlet section 2 and the mixing section 4 are respectively arranged at two ends in the nozzle body 1 along the axial direction and are communicated, and the air inlet section 3 is arranged on the circumferential surface of the nozzle body 1 and is communicated with the mixing section 4, so that air enters in the air inlet direction tangential to the circumferential direction of the nozzle body 1;

the air forms a vortex through the air inlet section 3 and advances to the mixing section 4 in a spiral line rotation manner to be mixed with the fuel gas entering through the fuel gas inlet section 2.

Specifically, the nozzle body 1 is of an existing prismatic structure, the gas inlet section 2 and the mixing section 4 are respectively and axially arranged at two ends in the nozzle body 1 and communicated with each other, and the air inlet section 3 is arranged on the circumferential surface of the nozzle body 1 and communicated with the mixing section 4, so that air enters in the air inlet direction tangential to the circumferential direction of the nozzle body 1;

like this, the air gets into according to the air inlet direction tangent with nozzle body 1 circumference, forms the vortex through air inlet section 3 to be the rotatory antedisplacement of helix in mixing section 4, and the gas gets into mixing section 4 through gas inlet section 2 in, and mix with the air.

As shown in fig. 1, the air inlet section 3 includes a vortex forming portion 31 and air inlet holes 32, the vortex forming portion 31 is axially disposed in the nozzle body 1 and located between the air inlet section 2 and the mixing section 4, the vortex forming portion 31 is communicated with the mixing section 4, and the vortex forming portion 31 is circumferentially and uniformly provided with a plurality of air inlet holes 32 communicated with the outside of the nozzle body 1 for allowing air to enter and forming a vortex.

Specifically, vortex formation portion 31 sets up between gas section 2 and mixing section 4 into, and communicate with mixing section 4, a plurality of air holes 32 of advancing have evenly been seted up along circumference in vortex formation portion 31, air hole 32 one end and the outside intercommunication of nozzle body 1, one end and vortex formation portion 31 intercommunication, thereby make the outside air inhaled in vortex formation portion 31, and form the rotatory air current of one in vortex formation portion 31, the vortex promptly, the vortex is that the helix is rotatory marching in mixing section 4, simultaneously with through advancing the gas mixture that gas section 2 got into mixing section 4, the mixing path is spiral rising type, and non-linear type, mixing duration is long, mix more evenly, thoroughly.

As shown in fig. 1, the vortex forming portion 31 is a cylinder structure with an inwardly-contracted horn-shaped groove at one end, the vortex forming portion 31 is of a hollow structure, the end portion far away from the horn-shaped groove is communicated with the mixing section 4, and the gas inlet section 2 extends into the horn-shaped groove and penetrates through the end surface of the gas inlet section to be communicated with the mixing section 4.

Specifically, the vortex forming portion 31 is a cylindrical structure, and one end of the cylindrical structure is provided with a horn-shaped groove, the horn-shaped groove gradually shrinks from the end of the cylindrical structure to the direction of inward extension, that is, the horn-shaped groove is a large opening end on the end surface of the cylindrical structure; simultaneously the cylinder is hollow structure, is also similar to character cut in bas-relief shape structure, and keeps away from the tip and the mixed section 4 intercommunication of loudspeaker form recess, and the opening orientation of loudspeaker form recess is gone up in vortex formation portion 31 this moment and is advanced gas section 2, and advances in gas section 2 stretches into loudspeaker form recess, and runs through the terminal surface and the mixed section 4 intercommunication of loudspeaker form recess.

Like this, the gas in the gas section 2 of admitting air directly enters into mixing section 4 through gas section 2 of admitting air, and outside air enters into vortex formation portion 31 through air inlet hole 32 in to form the vortex in vortex formation portion 31, be the rotatory antegoing of helix, simultaneously with the gas mixture that gets into mixing section 4 through gas section 2 of admitting air.

In a specific embodiment, the diameter of the cylindrical structure of the vortex forming section 31 is the same as the inner diameter of the mixing section 4.

Fig. 5 and 6 are an external view and an internal structure view of a conventional nozzle, and as shown in fig. 5 and 6, the conventional nozzle generally has a structure in which a group of circular passages are formed in a cylindrical body, a section of thread is formed at each of two ends of the outer surface of the cylindrical body, and the threads at the two ends are respectively in threaded connection with a gas pipe connector and a burner fixing plate to fix the nozzle; the circular channel of internal processing of column includes the inlet port, the shrinkage cavity, orifice (orifice, promptly gas flow control hole), the venthole, the inlet port is cylindrical hole, the shrinkage cavity is the bell mouth, the gas is by the inlet port to the shrinkage cavity, because the change of channel area, gas static pressure becomes the dynamic pressure, spout at a high speed through the orifice, the orifice is a little right circular cylinder section, stabilize the export air current, the venthole is a long straight through-hole, be the bell mouth between orifice and venthole, the bell mouth is big, tip diameter is the same with the venthole, orifice diameter, the effect is transitional coupling orifice and venthole.

A plurality of air inlet holes with the same aperture are uniformly arranged on the vertical plane of the end of the spray hole and the air outlet hole and the axis of the spray hole around the circumference of the spray hole, the air inlet holes enable the air outlet holes to be communicated with the outside of the columnar body, fuel gas is sprayed out to the air outlet holes through the spray hole at high speed and flows out, a negative pressure cavity is formed in the cavity of the air outlet holes, and air outside the columnar body is forced to be sucked into the cavity of the air outlet holes through the air inlet holes, namely the entrainment ejection function of the nozzle; the sucked air flow is mixed with the fuel gas sprayed from the spray holes in the hole cavity of the air outlet and flows out to the burner through the air outlet.

However, as shown in fig. 7, when air is injected, the air enters the existing nozzle in a 90-degree turning manner, according to the general principle of air flow power, the resistance coefficient of the injected air entering in the 90-degree turning manner is the largest, the air absorption and entry has large resistance, the air absorption and entry can affect the air suction to a certain extent, the air suction amount is insufficient, the injection capability of primary air is limited by the structure, the air and gas are not uniformly mixed, and the heat efficiency of the combustor is low.

Compared with the existing nozzle, as shown in fig. 3 and 4, the nozzle of the present embodiment has the vortex forming portion 31 and the plurality of air inlet holes 32 uniformly formed in the vortex forming portion 31 along the circumferential direction of the nozzle body 1, so that air enters through the air inlet holes 32 at the same time, a rotating airflow, i.e., a vortex, is formed in the vortex forming portion 31, the vortex moves forward in the cavity of the mixing section 4 in a spiral line rotation manner, and is mixed with the gas sprayed from the gas inlet section 2, and the mixing path is in a spiral ascending type instead of a linear type, so that the mixing time is long, and the mixing is more uniform and thorough. When the mixed gas fully mixed with the primary air enters the combustor to be combusted, the flame inside the combustor is bright, the flame is short and powerful, the combustion is more stable, complete and full, and due to the full combustion, the emission of CO in the flue gas is lower, and the heat efficiency is higher.

In specific implementation, the horn-shaped groove can be an inward-concave arc horn-shaped structure or a linear horn-shaped structure;

in order to better swirl the air entering the air intake section 3, the trumpet-shaped groove is preferably an inwardly concave arc trumpet-shaped structure.

Meanwhile, in order to ensure the effect of forming a vortex by the air entering the air inlet section 3, namely, enabling the gas to be more sufficiently combusted, the air inlet holes 32 are obliquely arranged, and the air inlet holes 32 are tangent to the horn-shaped surfaces of the horn-shaped grooves;

thus, the air entering the air inlet section 3 through the air inlet holes 32 is tangential to the circumferential direction of the nozzle body 1, and the air is simultaneously introduced through the plurality of air inlet holes 32, so that a rotating air flow, i.e., a vortex, is formed in the air inlet section 3.

Preferably, the number of the air inlet holes 32 is 4-6, and the number may be equal to or unequal to the number of edges of the prism of the nozzle body 1; meanwhile, the number of the air inlet holes 32 is not limited to 4-6, and the air inlet holes can be arranged according to actual needs.

As shown in fig. 1, the gas inlet section 2 includes an air inlet 21, a contraction hole 22 and a spray hole 23 which are sequentially communicated, the contraction hole 22 is of a conical hole structure, the air inlet 21 and the spray hole 23 are cylindrical holes, the air inlet 21 is communicated with an end face of the contraction hole 22 with a larger diameter, and the spray hole 23 is communicated with the mixing section 4.

Specifically, the contraction hole 22 is in a conical hole structure, the air inlet hole 21 and the spray hole 23 are in a cylindrical structure, the air inlet hole 21 is communicated with the large end of the contraction hole 22, and the spray hole 23 is communicated with the small end of the contraction hole 22; the contraction hole 22 and the spray hole 23 extend into the horn-shaped groove, and the spray hole 23 is connected with the end face of the horn-shaped groove.

As shown in fig. 3, the gas is collected from the inlet hole 21 to the contraction hole 22, the static pressure of the gas is changed into dynamic pressure due to the change of the channel area, and the dynamic pressure is ejected to the mixing section 4 at high speed through the ejection hole 23, negative pressure is formed in the cavity of the mixing section 4 near the ejection hole 23, so that the air outside the nozzle body 1 is sucked into the air inlet section 3 through the air inlet hole 32, when the air enters the plurality of air inlet holes 32 simultaneously, a rotating airflow, i.e., a vortex, is formed at the vortex forming portion 31, i.e., the bottom of the trumpet-shaped groove, and the vortex advances in the cavity of the mixing section 4 in a spiral line rotation manner and is mixed with the gas ejected from the ejection hole 23, and the mixing path is in a spiral ascending type rather than a linear type, so that the mixing time is long, and the mixing is more uniform and thorough.

In specific implementation, the exterior of the nozzle body 1 is provided with threads, which may be external threads.

The external thread is used for mounting and fixing the nozzle body 1.

The working principle is as follows: when the nozzle of the embodiment is used, gas is collected from the gas inlet 21 to the contraction hole 22, static pressure of the gas is changed into dynamic pressure due to change of channel area, the dynamic pressure is ejected to the mixing section 4 at a high speed through the ejection hole 23, negative pressure is formed in the cavity of the mixing section 4 close to the ejection hole 23, so that air outside the nozzle body 1 is sucked into the vortex forming part 31 through the air inlet hole 32, when a plurality of air inlet holes 32 simultaneously enter air, a rotating airflow, namely a vortex, is formed at the bottom of the horn-shaped groove of the vortex forming part 31, the vortex moves forwards in the cavity of the mixing section 4 in a spiral line rotation manner and is simultaneously mixed with the gas ejected from the ejection hole 23, a mixing path is in a spiral ascending manner and is not in a linear manner, so that the mixing time is long, and the mixing is more uniform and thorough.

This embodiment is through the gas section and the mixed section of advancing that set up intercommunication each other at the internal axial both ends of nozzle, and the periphery along the nozzle body sets up the air inlet section that communicates with the mixed section, make the external air get into according to the direction tangent with nozzle body circumference, and form the rotatory air current of one through the air inlet section, the vortex promptly, the vortex is the spiral line rotation in the mixed section and goes forward, mix with the gas through advancing the gas section and getting into, the mixing path is the spiral ascension type, mixing time is long, it is more even, thoroughly, effectively solved current nozzle because there is great resistance and influence the inspiratory problem of air when the air inhales, the combustion efficiency of gas has been guaranteed.

Example 2

The present embodiment provides a gas range to which the nozzle of embodiment 1 is applied.

In specific implementation, the gas stove is provided with a burner, and the end part of the nozzle body 1 close to the mixing section 4 is connected with the burner.

According to the gas stove, the nozzle is arranged, the gas inlet section and the mixing section which are communicated with each other are arranged at the two axial ends in the nozzle body, the air inlet section communicated with the mixing section is arranged along the circumferential surface of the nozzle body, so that external air enters in the direction tangential to the circumferential direction of the nozzle body and forms a rotating airflow through the gas inlet section, namely, a vortex, the vortex rotates forwards in the mixing section in a spiral line and is mixed with the gas entering through the gas inlet section, the mixing path is in a spiral ascending type, the mixing time is long, the mixing is more uniform and thorough, the problem that the air suction is influenced by the large resistance of the existing nozzle when the air is sucked is effectively solved, and the combustion efficiency of the gas is ensured;

meanwhile, the gas stove enables gas and air to be mixed more uniformly and thoroughly by improving the injection quality and the injection capacity of the nozzle, so that the combustion stability of the gas stove is improved, the emission of carbon monoxide is reduced, and the heat efficiency of the gas stove is effectively improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A nozzle is used for a gas stove and is characterized by comprising a nozzle body (1), a gas inlet section (2), an air inlet section (3) and a mixing section (4); the gas inlet section (2) and the mixing section (4) are respectively arranged at two ends of the interior of the nozzle body (1) along the axial direction and are communicated, the air inlet section (3) is arranged on the circumferential surface of the nozzle body (1) and is communicated with the mixing section (4), so that air enters in the air inlet direction tangential to the circumferential direction of the nozzle body (1);

the air forms a vortex through the air inlet section (3) and advances to the mixing section (4) in a spiral line rotation manner to be mixed with the fuel gas entering through the fuel gas inlet section (2).

2. A nozzle according to claim 1, characterized in that the air inlet section (3) comprises a vortex forming part (31) and air inlet holes (32), the vortex forming part (31) is axially arranged in the nozzle body (1) and is located between the gas inlet section (2) and the mixing section (4), the vortex forming part (31) is communicated with the mixing section (4), and the vortex forming part (31) is uniformly provided with a plurality of air inlet holes (32) communicated with the outside of the nozzle body (1) along the circumferential direction for allowing air to enter and form a vortex.

3. A nozzle according to claim 2, characterized in that the vortex forming part (31) is a cylindrical structure provided with an inwardly-converging trumpet-shaped groove at one end, the vortex forming part (31) is a hollow structure, the end part far away from the trumpet-shaped groove is communicated with the mixing section (4), and the gas inlet section (2) extends into the trumpet-shaped groove and is communicated with the mixing section (4) through the end surface thereof.

4. A nozzle as claimed in claim 3, wherein said flared recess is an inwardly concave arcuate or linear flared formation.

5. A nozzle according to claim 3 or 4, characterized in that the air inlet holes (32) are arranged obliquely.

6. A nozzle according to claim 5, wherein the air inlet hole (32) is tangential to the trumpet surface of the trumpet groove.

7. A nozzle according to claim 6, wherein the number of air inlet holes (32) is 4 to 6.

8. The nozzle of claim 1, wherein the gas inlet section (2) comprises a gas inlet hole (21), a contraction hole (22) and a spray hole (23) which are sequentially communicated, the contraction hole (22) is in a conical hole structure, the gas inlet hole (21) and the spray hole (23) are cylindrical holes, the gas inlet hole (21) is communicated with the end face with the larger diameter of the contraction hole (22), and the spray hole (23) is communicated with the mixing section (4).

9. A nozzle according to claim 1, characterized in that the nozzle body (1) is externally provided with a thread.

10. A gas range, characterized in that the nozzle according to any one of claims 1 to 9 is applied.

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