Heat recovery vaporization structure of a liquid fuel stove

Abstract

The present invention relates to a heat recovery vaporization structure of a liquid fuel stove, including a fire cover and a direct injection pipe, wherein the fire cover is arranged above the direct injection pipe; an inner vaporization ring is arranged on the side of the direct injection pipe, and a liquid receiving groove is arranged on the inner vaporization ring, and the liquid receiving groove is located below the fire cover, and the liquid fuel overflowing from the fire cover is collected and burned by the liquid receiving groove. This structure can effectively collect the liquid fuel overflowing during the use of the stove by arranging an inner vaporization ring with a liquid receiving groove below the fire cover, and because the distance between the liquid receiving groove and the fire cover is relatively close, the overflowed liquid fuel will be ignited immediately, so that it can be fully utilized. This process has a certain combustion-supporting effect, so that the heating effect of the stove head is better and the vaporization effect of the outer vaporization ring is better.

Description

Technical Field

[0001] The invention relates to a stove, in particular to a heat recovery vaporization structure of a liquid fuel stove. Background Art

[0002] During the use of traditional liquid fuel stoves, it is inevitable that a small amount of liquid fuel will overflow from the fire cover. If the overflowed fuel is not handled properly, it will lead to serious consequences. The traditional handling method is to set a container under the direct injection pipe specifically for collecting the overflowed fuel. The collected fuel will be discarded or reused. If discarded, it will cause waste, and if reused, it may affect the quality of the new fuel. In addition, a vaporization ring is generally provided at the burner head. The heat generated when the burner head is working is used to preheat the liquid fuel in the vaporization ring to achieve the vaporization effect. However, due to structural limitations, there is a certain distance between the vaporization ring and the heat source, resulting in poor preheating effect and difficulty in achieving the expected vaporization effect.

[0003] Therefore, further improvements are needed. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a heat recovery vaporization structure for a liquid fuel stove with simple design, reasonable structure, high vaporization efficiency and thermal efficiency, good vaporization effect, high safety factor and effective avoidance of fuel waste.

[0005] The object of the present invention is achieved in that:

[0006] A heat recovery vaporization structure for a liquid fuel stove comprises a fire cover and a direct injection pipe, wherein the fire cover is arranged above the direct injection pipe; the characteristic is that an inner vaporization ring is arranged on the side of the direct injection pipe, and a liquid receiving groove is arranged on the inner vaporization ring, and the liquid receiving groove is located below the fire cover, and liquid fuel overflowing from the fire cover is collected by the liquid receiving groove and burned.

[0007] The inner vaporization ring is provided with a circuitous inner vaporization channel, which is arranged in a ring shape as a whole and surrounds the outside of the straight injection pipe. The inner vaporization ring is provided with a first liquid inlet connected to one end of the inner vaporization channel and a first liquid outlet connected to the other end of the inner vaporization channel.

[0008] The inner vaporization ring is composed of an upper cover plate, a vaporization ring body and a lower cover plate. The inner vaporization channel is arranged on the circumference of the vaporization ring body. The upper cover plate is closed above the inner vaporization channel, and the lower cover plate is closed below the inner vaporization channel.

[0009] It also includes an outer vaporization ring, which is surrounded by the outer side of the fire cover in an interval manner. The outer vaporization ring is provided with an outer vaporization channel, and a second liquid inlet and a second liquid outlet respectively connected to the outer vaporization channel. The first liquid outlet is connected to the second liquid inlet, and the second liquid outlet is connected to the direct injection pipe.

[0010] It also includes a preheating vaporization device, and the first liquid inlet is connected to the outlet end of the preheating vaporization device.

[0011] The external vaporization channel is trumpet-shaped, the second liquid inlet and the second liquid outlet are respectively connected to two sides of the external vaporization channel, and the second liquid inlet is lower than the second liquid outlet.

[0012] The outer vaporization ring comprises a trumpet-shaped upper vaporization ring and a trumpet-shaped lower vaporization ring, the outer vaporization channel is the gap between the upper vaporization ring and the lower vaporization ring; the second liquid inlet and / or the second liquid outlet is arranged on the lower vaporization ring.

[0013] A plurality of liquid receiving grooves are evenly distributed on the inner vaporizing ring in an annular shape and are matched with the circuitous bending parts of the inner vaporizing channel in an interval manner.

[0014] The inner vaporization ring is assembled on the top of the straight injection pipe, and the fire cover is assembled on the inner vaporization ring.

[0015] A cylindrical screen is arranged inside the straight spray pipe.

[0016] The beneficial effects of the present invention are as follows:

[0017] By arranging an inner vaporization ring with a liquid receiving groove under the fire cover, the liquid fuel overflowed during the use of the stove can be effectively collected, and because the distance between the liquid receiving groove and the fire cover is relatively close, the overflowed liquid fuel will be ignited immediately, so that it can be fully utilized. This process has a certain combustion-supporting effect, so that the heating effect of the burner head is better and the vaporization effect of the outer vaporization ring is better;

[0018] An inner vaporization channel is provided on the inner vaporization ring, and the liquid fuel is controlled to pass through the inner vaporization channel before entering the outer vaporization channel; since the inner vaporization channel is closer to the fire cover, the heating effect on the inner vaporization channel is more obvious, thereby making the vaporization effect of the liquid fuel more significant and more efficient, the heat dissipated around the fire cover is well utilized, and the thermal efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a schematic diagram of an assembly of an embodiment of the present invention.

[0020] Figure 2 It is a partial cross-sectional view of an embodiment of the present invention.

[0021] FIG. 3 is a schematic diagram of the assembly of an inner vaporization ring in one embodiment of the present invention.

[0022] FIG. 4 is an exploded view of an inner vaporization ring in one embodiment of the present invention.

[0023] FIG. 5 is an exploded view of the inner and outer vaporization rings according to an embodiment of the present invention.

[0024] FIG. 6 is a schematic structural diagram (partial cross-section) of a vaporization ring body in one embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1 - Figure 6, the heat recovery vaporization structure of the liquid fuel stove includes a fire cover 1 and a direct injection pipe 7. The fire cover 1 is arranged above the direct injection pipe 7; the side of the direct injection pipe 7 is provided with an inner vaporization ring, and a liquid receiving groove 501 is provided on the inner vaporization ring. The liquid receiving groove 501 is located below the fire cover 1, and the liquid fuel overflowing from the fire cover 1 is collected and burned by the liquid receiving groove 501. By arranging the inner vaporization ring with the liquid receiving groove 501 below the fire cover 1, the stove can effectively collect the liquid fuel overflowing during the use of the stove, and because the distance between the liquid receiving groove 501 and the fire cover is relatively close, the overflowed liquid fuel will be ignited immediately, so that it can be fully utilized. This process has a certain combustion-supporting effect, so that the heating effect of the stove head is better and the vaporization effect of the outer vaporization ring is better.

[0027] Furthermore, the inner vaporization ring is provided with a circuitous inner vaporization channel a, which is arranged in a ring shape as a whole and surrounded by the outside of the straight injection pipe 7, so that the length of the inner vaporization channel a can be effectively extended within a limited space, making the liquid fuel delivery path longer, thereby ensuring that the liquid fuel is fully vaporized; the inner vaporization ring is provided with a first liquid inlet 502 connected to one end of the inner vaporization channel a, and a first liquid outlet 503 connected to the other end of the inner vaporization channel a, and the first liquid inlet 502 and the first liquid outlet 503 are respectively connected to the external pipe body.

[0028] Furthermore, due to process limitations, the inner vaporization ring is composed of an upper cover plate 4, a vaporization ring body 5 and a lower cover plate 6, and the upper cover plate 4 and the lower cover plate 6 are respectively assembled on the upper and lower sides of the vaporization ring body 5; the inner vaporization channel a is arranged on the peripheral side of the vaporization ring body 5, the upper cover plate 4 is closed above the inner vaporization channel a, and the lower cover plate 6 is closed below the inner vaporization channel a; wherein, the upper cover plate 4 is provided with corresponding cover plate through holes 401 corresponding to each liquid receiving groove 501; the lower cover plate 6 is provided with a corresponding first external interface 601 corresponding to the first liquid inlet 502, and a corresponding second external interface 602 corresponding to the first liquid outlet 503.

[0029] Furthermore, the heat recovery vaporization structure also includes an outer vaporization ring, which is surrounded by the outer side of the fire cover 1 in an interval manner, and the inner side of the outer vaporization ring is provided with an outer vaporization channel b, and a second liquid inlet 301 and a second liquid outlet 302 respectively connected to the outer vaporization channel b, the second liquid inlet 301 and the second liquid outlet 302 are respectively connected to an external pipe body; the first liquid outlet 503 is connected to the second liquid inlet 301, and the second liquid outlet 302 is connected to the direct injection pipe 7. This connection relationship allows the liquid fuel to be first vaporized at high temperature in the inner vaporization channel a and then vaporized at a relatively low temperature in the outer vaporization channel b, so that the liquid fuel is fully vaporized.

[0030] Furthermore, the heat recovery vaporization structure also includes a preheating vaporization device 9, and the first liquid inlet 502 is connected to the outlet end of the preheating vaporization device 9. The liquid fuel will be preheated and vaporized by the preheating vaporization device 9 before entering the heat recovery vaporization structure to perform preliminary vaporization on the liquid fuel.

[0031] Furthermore, the external vaporization channel b is trumpet-shaped, and the second liquid inlet 301 and the second liquid outlet 302 are respectively connected to the two sides of the external vaporization channel b; the second liquid inlet 301 is used to introduce liquid fuel, and the second liquid outlet 302 is used to lead out gas fuel. Since liquid fuel sinks and gas fuel floats, the second liquid inlet 301 is lower than the second liquid outlet 302.

[0032] Furthermore, the outer vaporization ring includes a trumpet-shaped upper vaporization ring 2 and a trumpet-shaped lower vaporization ring 3 , and the outer vaporization channel b is the gap between the upper vaporization ring 2 and the lower vaporization ring 3 ; the second liquid inlet 301 and the second liquid outlet 302 are respectively opened on both sides of the lower vaporization ring 3 .

[0033] Furthermore, a plurality of liquid receiving grooves 501 are evenly distributed in an annular shape on the inner vaporization ring, and are coordinated with the circuitous bends of the inner vaporization channel a at intervals, so that the structure is simple and reasonable, and the space utilization effect is good.

[0034] Furthermore, the inner vaporization ring is assembled on the top of the straight injection pipe 7, and the fire cover 1 is assembled on the top of the inner vaporization ring.

[0035] Furthermore, a cylindrical screen 8 is provided on the inner side of the direct injection pipe 7; the screen 8 can evenly distribute the gas fuel and also plays a filtering role, so that the unvaporized liquid fuel can hang on the screen 8, that is, stay on the inner side of the direct injection pipe 7 and re-vaporize, so that the vaporization of the liquid fuel is more complete and stable, and the flame combustion process is smooth and uniform, avoiding the flame burning from being large or small, thereby improving the user experience.

[0036] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat recovery vaporization structure for a liquid fuel stove, comprising a fire cover (1) and a direct injection pipe (7), wherein the fire cover (1) is arranged above the direct injection pipe (7); characterized in that: An inner vaporizing ring is provided on the side of the direct injection pipe (7), and a liquid receiving groove (501) is provided on the inner vaporizing ring. The liquid receiving groove (501) is located below the fire cover (1), and liquid fuel overflowing from the fire cover (1) is collected by the liquid receiving groove (501) and burned; The inner vaporization ring is provided with a circuitous inner vaporization channel (a), the inner vaporization channel (a) is arranged in a ring shape as a whole and surrounds the outside of the straight injection pipe (7), and the inner vaporization ring is provided with a first liquid inlet (502) connected to one end of the inner vaporization channel (a), and a first liquid outlet (503) connected to the other end of the inner vaporization channel (a); It also includes an outer vaporization ring, which is spaced and surrounds the outer side of the fire cover (1), and is provided with an outer vaporization channel (b), and a second liquid inlet (301) and a second liquid outlet (302) respectively connected to the outer vaporization channel (b), the first liquid outlet (503) is connected to the second liquid inlet (301), and the second liquid outlet (302) is connected to the direct injection pipe (7); A plurality of liquid receiving grooves (501) are evenly distributed in an annular shape on the inner vaporizing ring and are spacedly matched with the winding bends of the inner vaporizing channel (a).

2. The heat recovery vaporization structure of the liquid fuel stove according to claim 1, characterized in that: The inner vaporization ring is composed of an upper cover plate (4), a vaporization ring body (5) and a lower cover plate (6); the inner vaporization channel (a) is arranged on the circumference of the vaporization ring body (5); the upper cover plate (4) is enclosed above the inner vaporization channel (a); and the lower cover plate (6) is enclosed below the inner vaporization channel (a).

3. The heat recovery vaporization structure of the liquid fuel stove according to claim 1, characterized in that: It also includes a preheating vaporization device (9), and the first liquid inlet (502) is connected to the outlet end of the preheating vaporization device (9).

4. The heat recovery vaporization structure of the liquid fuel stove according to claim 1, characterized in that: The external vaporization channel (b) is trumpet-shaped, the second liquid inlet (301) and the second liquid outlet (302) are respectively connected to two sides of the external vaporization channel (b), and the second liquid inlet (301) is lower than the second liquid outlet (302).

5. The heat recovery vaporization structure of the liquid fuel stove according to claim 1, characterized in that: The outer vaporization ring comprises a trumpet-shaped upper vaporization ring (2) and a trumpet-shaped lower vaporization ring (3); the outer vaporization channel (b) is a gap between the upper vaporization ring (2) and the lower vaporization ring (3); and the second liquid inlet (301) and / or the second liquid outlet (302) are provided on the lower vaporization ring (3).

6. The heat recovery vaporization structure of the liquid fuel stove according to claim 1, characterized in that: The inner vaporization ring is mounted on the top end of the straight injection pipe (7), and the fire cover (1) is mounted on the inner vaporization ring.

7. The heat recovery vaporization structure of the liquid fuel stove according to claim 1, characterized in that: A cylindrical screen (8) is arranged inside the straight injection pipe (7).

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