Premixing type methanol stove

Abstract

The utility model belongs to the technical field of new energy and energy conservation, and discloses a premixing type methanol stove. The premixing type methanol stove comprises a support, a stove frame is installed at the top of the support in a penetrating mode, a premixing cavity is formed in the center of the stove frame, a methanol nozzle is installed at the bottom of the premixing cavity, a plurality of air inlet devices are evenly and symmetrically distributed on the side portion of the premixing cavity, and the air inlet devices extend into the premixing cavity. The air inlet device comprises a plurality of air inlet pipelines which are uniformly mounted on the side part of the premixing cavity, the tail parts of the plurality of air inlet pipelines are connected to an air inlet main pipe, the air inlet main pipe is connected with a fan, and the head part of each air inlet pipeline extends into the premixing cavity; according to the utility model, methanol and air can be fully mixed, a certain flame stabilizing effect is achieved in the combustion process, the combustion efficiency of methanol can be effectively improved, the overall combustion efficiency of the stove is improved, and carbon monoxide generated due to insufficient combustion of methanol can be reduced, so that the environmental pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy and energy -conserving technical field, concretely relates to a premix formula methanol range. BACKGROUND

[0002] Methanol is regarded as a potential clean fuel as a renewable energy because of its wide source and low cost. In the field of civil combustion, the application of methanol can significantly reduce carbon emissions, which is of great significance to environmental governance.

[0003] Premix methanol range is a kind of combustion equipment using methanol as fuel, which has been widely used in combustion equipment due to its high thermal efficiency and low pollution emission. According to the primary air coefficient, premix burner can be divided into diffusion burner, partial premix burner and full premix burner. Among them, full premix burner has the characteristics of complete combustion, high flame temperature, high thermal efficiency and less harmful emissions, which has obvious advantages in energy saving and emission reduction. Based on the existing full premix burner and civil combustion range, methanol is premixed with air according to the physicochemical properties of methanol to achieve complete combustion and improve energy utilization efficiency. However, the existing premix methanol range technology is not yet mature, and there are a series of technical challenges and use restrictions.

[0004] In the prior art, the existing premix methanol range is mainly a spray combustion methanol range and a diffusion combustion methanol range. The spray combustion range has the problem of insufficient mixing of methanol and air during operation, and the diffusion combustion range has the problems of large fuel consumption and incomplete combustion during operation. The overall combustion efficiency of the two types of ranges is low, which can cause the generation of carbon monoxide and other harmful substances, causing harm to the environment and human health. INVENTION CONTENTS

[0005] The utility model aims at providing a premix methanol range to overcome the problems in the prior art. The utility model can ensure sufficient mixing of methanol and air, achieve a certain flame stabilizing effect during combustion, effectively improve the combustion efficiency of methanol, improve the combustion efficiency of the range, and further reduce the generation of carbon monoxide due to incomplete combustion of methanol to reduce environmental pollution.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a premix methanol range, which comprises a support, a stove rack is installed through the top of the support, a premixing cavity is installed at the center of the stove rack, a methanol nozzle is installed at the bottom of the premixing cavity for atomizing and conveying methanol to the inside of the premixing cavity, a plurality of air inlet devices are uniformly and symmetrically distributed on the side of the premixing cavity, and the air inlet devices extend to the inside of the premixing cavity.

[0008] The air inlet device comprises a plurality of air inlet pipelines evenly arranged on the side of the premixing cavity, the tail of each air inlet pipeline is connected to an air inlet manifold, the air inlet manifold is connected with a fan, and the head of each air inlet pipeline extends to the inside of the premixing cavity for conveying air to the inner wall of the premixing cavity;

[0009] Further, the angle between each air inlet pipeline and the normal of the wall surface of the premixing cavity is 30°-60°, for driving the mixing of methanol and air;

[0010] Further, the methanol nozzle is a centrifugal nozzle;

[0011] Further, the premixing cavity is in a bowl shape;

[0012] Further, the premixing cavity comprises a premixing cavity body, an inner ring fire cover is arranged on the top of the premixing cavity body, an outer ring fire cover is arranged outside the inner ring fire cover, and a gap is arranged between the inner ring fire cover and the outer ring fire cover;

[0013] Further, the surfaces of the inner ring fire cover and the outer ring fire cover are uniformly distributed with a plurality of fire holes, and a plurality of ignition needles are arranged in the gap between the inner ring fire cover and the outer ring fire cover;

[0014] Further, the furnace frame comprises an upper furnace frame, the bottom of the upper furnace frame is provided with a furnace frame extension, the bottom of the furnace frame extension is arranged with a plurality of lower furnace frame legs, and the upper furnace frame and the furnace frame extension penetrate through the top of the support;

[0015] Further, the support comprises a support table, the bottom of the support table is fixed with a plurality of support legs, and the plurality of lower furnace frame legs are respectively arranged on the plurality of support legs;

[0016] Further, the number of the lower furnace frame legs is equal to that of the support legs;

[0017] Further, the furnace frame extension is in a circular arc shape, for forming a hot flame backflow area, so that part of the heat during combustion is transmitted to the outer wall of the premixing cavity along the circular arc.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] The utility model provides a kind of premix formula methanol range, by being provided with support, stove frame, premix cavity, methanol nozzle and air inlet device, methanol obtains higher flow velocity and is mist from spout to four around after entering methanol nozzle by hose, air is inhaled into premix cavity by air inlet device, along the inner wall surface of premix cavity flow forms vortex, drive mist methanol mixed formation mixed gas and flow upwards and burn, by stove frame can the heat of flame generated reflux, so that heat is transferred to the wall surface of premix cavity, the gasification of mist methanol inside wall is strengthened, so that air and methanol mixing is more uniform, combustion efficiency is higher;By bowl premix cavity fixedly installed on support can promote the mixing of methanol and air, can play certain flame stabilizing effect in combustion process, further improve combustion efficiency, and further reduce carbon monoxide generated due to methanol combustion is not sufficient, reduce pollution to environment.

[0020] Further, the air inlet pipe installed on the side wall of the premix cavity has an inclination angle, which can drive the mixing of methanol and air while spraying air, and make the mixed gas form an upward vortex to reach the inner ring fire cover and the outer ring fire cover for combustion, further improving the combustion efficiency.

[0021] Further, the methanol nozzle installed at the bottom of the premix cavity is a centrifugal nozzle, which can fully atomize liquid methanol, facilitate the centrifugal motion of methanol fuel inside the methanol nozzle, and obtain a greater speed from the nozzle due to the contraction of the wall surface, so that the atomization is more sufficient and dispersed, which is beneficial to the mixing with air and the gasification of methanol, plays a flame stabilizing effect, and further improves the combustion efficiency.

[0022] Further, by setting the inner ring fire cover, the outer ring fire cover and the stove frame, the extension of the stove frame extends to the periphery of the premix cavity, which can form a hot flame reflux area after combustion starts, so that part of the heat during combustion is transferred to the outer wall surface of the premix cavity along the arc, further promoting the gasification of methanol, and making the combustion efficiency higher. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the premix formula methanol range of the utility model;

[0024] Figure 2 It is a right view of the premix formula methanol range of the utility model;

[0025] Figure 3 It is a top view of the premix formula methanol range of the utility model;

[0026] Figure 4 It is a premix cavity structure schematic view of the premix formula methanol range of the utility model;

[0027] Figure 5 Figure 1 is a partial cross-sectional view of a premix type methanol stove according to the present application;

[0028] In the figure, 1 - support; 2 - furnace frame; 21 - upper furnace frame; 22 - furnace frame extension; 23 - lower furnace frame leg; 3 - inner ring fire cover; 4 - outer ring fire cover; 5 - premix cavity; 6 - air intake pipeline; 7 - methanol nozzle. DETAILED DESCRIPTION

[0029] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0030] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is in second feature "on", "above" and "upper surface" includes that first feature is in second feature directly above and obliquely above, or only indicates that first feature horizontal height is higher than second feature. First feature is in second feature "under", "below" and "under" includes that first feature is in second feature directly above and obliquely above, or only indicates that first feature horizontal height is less than second feature.

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] Referring to Figure 1 And Figure 2 The utility model provides a kind of premix formula methanol range, including support 1, furnace frame 2, premix cavity 5, air inlet device and methanol nozzle 7;Support 1 includes stand and leg;Furnace frame 2 includes upper furnace frame 21, furnace frame extension 22 and lower furnace frame leg 23;Premix cavity 5 includes mixing cavity body, inner ring fire cover 3 and outer ring fire cover 4;Air inlet device includes air inlet pipeline 6, inlet manifold and fan;

[0036] Upper furnace frame 21 and furnace frame extension 22 are installed on the top of support 1, and penetrate the top of support 1, lower furnace frame leg 23 is installed on the bottom of furnace frame extension 22, furnace frame extension 22 is circular arc, can form hot flame backflow area, so that part of heat of flame is transmitted to the outer wall of premix cavity 5 downwards along circular arc, lower furnace frame leg 23 is installed on leg, and the number of lower furnace frame leg 23 and leg is equal;

[0037] Preferably, the number of lower furnace frame leg 23 and leg can be 3, 4, 5, 6, can also be other number capable of achieving same effect;

[0038] The premixing cavity 5 is fixedly installed at the center of the furnace frame 2, the methanol nozzle 7 is installed at the bottom of the premixing cavity 5, the methanol nozzle 7 is used for atomizing and conveying methanol to the inside of the premixing cavity 5, the air inlet pipelines 6 are uniformly and symmetrically distributed at the side of the premixing cavity 5, the head of each air inlet pipeline 6 extends to the inside of the premixing cavity 5 and is used for conveying air to the inner wall of the premixing cavity 5, the tail of the air inlet pipeline 6 is connected to the air inlet main pipe, the air inlet main pipe is connected with the fan, the same direction inclination angle between the wall of the premixing cavity 5 and the air inlet pipeline 6 is 30°-60°, which can form a vortex during premixing, accelerate the mixing of methanol and air, and make the mixed gas reach the inner ring fire cover 3 and the outer ring fire cover 4 for combustion;

[0039] Preferably, the number of air inlet pipelines 6 can be 2, 3, 4, 5, 6, or other numbers that can achieve the effect of forming a vortex during premixing, accelerating the mixing of methanol and air, and making the mixed gas reach the inner ring fire cover 3 and the outer ring fire cover 4 for combustion.

[0040] Preferably, the same direction inclination angle between the wall of the premixing cavity 5 and the air inlet pipeline 6 can be 30°, 35°, 40°, 45°, 50°, 55°, 60°, or any other angle value between 30°-60°.

[0041] Referring to Figure 3 , Figure 4 and Figure 5 , the premixing cavity 5 is installed at the center of the furnace frame 2, that is, at the coaxial center of the upper furnace frame 21, the furnace frame extension 22 and the lower furnace frame leg 23, the furnace frame 2 surrounds the premixing cavity 5, the premixing cavity 5 has a bowl-shaped structure, which can facilitate the formation of a vortex of the mixed gas moving towards the inner ring fire cover 3 and the outer ring fire cover 4, the inner ring fire cover 3 is installed at the top of the premixing cavity body, the outer ring fire cover 4 is sleeved outside the inner ring fire cover 3, a gap is arranged between the inner ring fire cover 3 and the outer ring fire cover 4, a plurality of fire holes are uniformly distributed on the surfaces of the inner ring fire cover 3 and the outer ring fire cover 4, an ignition needle is installed in the gap between the inner ring fire cover 3 and the outer ring fire cover 4, the methanol nozzle 7 is installed at the bottom of the premixing cavity 5, the methanol nozzle 7 is a centrifugal nozzle, the methanol nozzle 7 at the bottom of the premixing cavity 5 can be directly connected to a methanol fuel tank by a hose, the liquid methanol can be atomized by the methanol nozzle 7, which is conducive to the mixing with air and the gasification of methanol, specifically, the centrifugal motion of the methanol fuel can be facilitated in the inside of the methanol nozzle 7, the liquid methanol is sprayed out of the methanol nozzle 7 due to the greater speed obtained by the wall contraction near the nozzle opening, which makes the atomization more sufficient and dispersed, and further improves the combustion efficiency.

[0042] Preferably, the number of ignition needles can be 1, 2, 3, or any other number that can achieve the ignition effect of the device.

[0043] The structure and working principle of the utility model are further described as follows:

[0044] The utility model discloses a premix formula methanol range, when using the device, methanol fuel tank is connected with methanol nozzle 7 with hose, and methanol obtains higher flow velocity and is mist from the spout to all around after entering methanol nozzle 7 through hose, and air enters premix chamber 5 under the action of pump through air inlet pipeline 6, and along the inner wall surface of premix chamber 5 flow forms vortex, drives misty methanol and mixes to form mixed gas and flows up to inner ring fire cover 3 and outer ring fire cover 4 and carries out combustion, and the extension of arc-shaped frame 22 makes the flame heat generated by outer ring fire cover 4 reflux, makes the heat transfer to the wall surface of premix chamber 5, enhances the gasification of misty methanol in the wall surface, makes air and methanol mix more evenly, and the combustion efficiency is higher, and further reduces the problem that carbon monoxide is generated due to insufficient methanol combustion, and reduces the pollution to the environment.

[0045] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and for those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand. The above content only illustrates the technical idea of the utility model, and cannot limit the protection scope of the utility model, and any modification made on the basis of the technical solution according to the technical idea of the utility model falls within the protection scope of the claims of the utility model.

Claims

1. A premix methanol stove characterized in that, The application relates to a methanol stove, which comprises a support (1), a stove frame (2) is arranged through the top of the support (1), a premixing cavity (5) is arranged at the center of the stove frame (2), a methanol nozzle (7) is arranged at the bottom of the premixing cavity (5) and is used for atomizing and conveying methanol into the premixing cavity (5), and a plurality of air inlet devices are uniformly and symmetrically arranged at the side of the premixing cavity (5) and extend into the premixing cavity (5). The air inlet device comprises a plurality of air inlet pipelines (6) which are uniformly arranged at the side of the premixing cavity (5), the tail portions of the air inlet pipelines (6) are connected to an air inlet manifold, the air inlet manifold is connected with a fan, and the head portions of the air inlet pipelines (6) extend into the premixing cavity (5) and are used for conveying air to the inner wall of the premixing cavity (5).

2. A premix methanol stove as claimed in claim 1, wherein, The angle between each air inlet pipeline (6) and the normal line of the wall of the premixing cavity (5) is 30-60 degrees, and the angle is used for mixing methanol and air.

3. A premix methanol stove as claimed in claim 1, wherein, The methanol nozzle (7) is a centrifugal nozzle.

4. A premix methanol stove as claimed in claim 1, wherein, The premixing cavity (5) is in a bowl shape.

5. A premix methanol range according to claim 1, characterized in that, The premixing cavity (5) comprises a premixing cavity body, an inner ring fire cover (3) is arranged at the top of the premixing cavity body, an outer ring fire cover (4) is arranged at the outside of the inner ring fire cover (3), and a gap is arranged between the inner ring fire cover (3) and the outer ring fire cover (4).

6. A premix methanol burner as claimed in claim 5, wherein, A plurality of fire holes are uniformly arranged on the surfaces of the inner ring fire cover (3) and the outer ring fire cover (4), and a plurality of ignition needles are arranged in the gap between the inner ring fire cover (3) and the outer ring fire cover (4).

7. A premix methanol range according to claim 1, characterized in that, The stove frame (2) comprises an upper stove frame (21), a stove frame extension (22) is arranged at the bottom of the upper stove frame (21), a plurality of lower stove frame legs (23) are arranged at the bottom of the stove frame extension (22), and the upper stove frame (21) and the stove frame extension (22) pass through the top of the support (1).

8. A premix methanol stove as claimed in claim 7, wherein, The support (1) comprises a support table, a plurality of support legs are fixed at the bottom of the support table, and the plurality of lower stove frame legs (23) are arranged on the plurality of support legs respectively.

9. A premix methanol range according to claim 8, characterized in that, The number of the lower stove frame legs (23) is equal to that of the support legs.

10. A premix methanol stove as claimed in claim 7, wherein, The stove frame extension (22) is in a circular arc shape and is used for forming a hot flame reflux area, so that part of heat during combustion is transmitted to the outer wall of the premixing cavity (5) along the circular arc.

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