A direct injection burner

Abstract

The direct injection burner comprises a cup, a direct injection mixing tube, an injection pipe, a direct injection seat, a nozzle and a direct injection mixing tube which are integrally formed, two fixed column seats are arranged in the lower end of the direct injection mixing tube, the lower part of the direct injection mixing tube is in a semi-hyperbolic or conical shape and is used for compressing and mixing gas and air, and the upper part of the direct injection mixing tube is in an inverted conical shape; the direct injection seat comprises a transverse seat frame, an air inlet interface and a nozzle seat; the injection pipe is communicated with the cup, the transverse seat frame is fixed with the fixed column seats, and the nozzle of the nozzle seat is opposite to the direct injection mixing tube. Gas and air are mixed and compressed in the lower part of the direct injection mixing tube, and are released and diffused in the upper part, so that the gas and air are uniformly mixed and the speed is fast.

Description

Technical Field

[0001] This utility model relates to a stove burner. Background Technology

[0002] Current technology, specifically Chinese patent 202323326392.4, discloses a central direct injection nozzle and a top-intake environmentally friendly and energy-saving burner. The central direct injection nozzle includes a first connector and a second connector located at both ends, with their inner cavities used for air passage, and a connecting portion connecting the first and second connectors. The connecting portion has multiple oxygen inlet holes circumferentially arranged. The inner cavity of the connecting portion forms a conical protrusion, axially facing the inner cavity of the first connector. An air jet hole is formed at the top of the conical protrusion, penetrating the conical protrusion to form an air jet channel, communicating with the inner cavities of the first and second connectors respectively. The conical protrusion raises the air jet hole, causing small debris falling from the central direct injection air channel of the burner, if it falls into the inner cavity of the connecting portion, to fall down the side wall of the conical protrusion and then be blown out through the circumferential oxygen inlet holes of the connecting portion. This reduces debris clogging inside the nozzle, lowers the probability of the nozzle's air jet hole becoming blocked, and improves safety. The problem is: the structure is complex. Utility Model Content

[0003] The purpose of this invention is to provide a burner with direct injection, which features uniform mixing and pressurization of direct-injection gas and air.

[0004] This utility model is implemented as follows: a burner with direct injection, characterized in that it includes a cup body, a direct injection mixing pipe running vertically through the cup body, an injector, a direct injection base, and a nozzle.

[0005] The direct injection mixing pipe and the cup body are integrally molded. The lower end of the direct injection mixing pipe is equipped with two fixed column seats. The lower part of the direct injection mixing pipe is semi-hyperboid or frustum-shaped and compresses and mixes gas and air, while the upper part is inverted frustum-shaped.

[0006] The direct injection unit includes a horizontal support, an air intake port, and a nozzle seat;

[0007] The ejector tube and the cup body are connected, the transverse seat is fixed to the fixed column seat, and the nozzle of the nozzle seat is opposite to the direct injection mixing pipe or the nozzle extends into the lower end of the direct injection mixing pipe.

[0008] The aforementioned burner with direct injection is characterized in that it further includes a fixed damper plate and a movable damper plate.

[0009] The fixed damper includes a fixed shaft hole, two air inlets, and two through holes; the movable damper includes a circular base plate and two fan-shaped door plates, with a movable shaft hole on the circular base plate.

[0010] The lower end of the direct injection mixing pipe is provided with a countersunk hole;

[0011] The fixed damper plate and the moving damper plate are hinged together by a hollow shaft or by a nozzle. The fixed damper plate is fixed to the countersunk hole, and the fixed column seat passes through the through hole. The nozzle passes through the hollow shaft and extends into the direct injection mixing pipe.

[0012] The aforementioned burner with direct injection is characterized in that: one side of the fan-shaped door panel has an air-avoiding notch.

[0013] The clearance gap and a fixed column base are fitted together to stop the stop, and the other side of the fan-shaped door panel is fitted together with another fixed column base to stop the stop.

[0014] The aforementioned burner with direct injection is characterized in that the clearance notch is arc-shaped.

[0015] The fixed column base is cylindrical, and the diameter of the clearance notch is larger than the diameter of the fixed column base.

[0016] The burner with direct injection is characterized by the gap between the lower end of the direct injection seat and the direct injection mixing pipe.

[0017] The aforementioned burner with direct injection is characterized in that: the cup body is provided with a premixing chamber, and the ejector tube is connected to the pre-embedded chamber.

[0018] The aforementioned burner with direct injection is characterized in that: the lower part of the direct injection mixing pipe is semi-hyperbolic or truncated cone-shaped and compresses and mixes the gas and air, while the upper part is truncated cone-shaped.

[0019] This utility model discloses a burner with direct injection, in which gas and air are mixed and compressed in the lower part of the direct injection mixing pipe, and then released and diffused in the upper part, resulting in uniform and rapid mixing of gas and air. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the present invention.

[0021] Figure 2 yes Figure 1 A-A view.

[0022] Figure 3 This is one of the exploded planar views of this utility model.

[0023] Figure 4 This is the second exploded plan view of this utility model.

[0024] Figure 5 This is a perspective view of the present invention.

[0025] Figure 6 This is one of the exploded perspective views of this utility model.

[0026] Figure 7 This is the second exploded perspective view of this utility model. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] like Figure 1 , Figure 2 As shown, a burner with direct injection includes a cup body 1, a direct injection mixing pipe 2 that runs vertically through the cup body 1, an injector 3, a direct injection seat 4, a nozzle (not shown in the figure), a constant air damper plate 5, and a movable air damper plate 6.

[0030] The direct injection mixing pipe 2 and the cup body 1 are integrally formed. The direct injection mixing pipe 2 includes a countersunk hole 21 at the lower end and two fixed column bases 22.

[0031] The direct injection mount 4 includes a transverse mount 41, an air inlet 42, and a nozzle mount 43, with the air inlet 42 and the nozzle mount 43 connected together.

[0032] The wind-fixing damper plate 5 includes a fixed axis hole 51, two air inlets 52 and two through holes 53;

[0033] The moving damper plate 6 includes a circular base plate 61 and two fan-shaped door plates 62. The circular base plate 61 is provided with a moving shaft hole.

[0034] The ejector tube 3 is connected to the cup body 1. The fixed damper plate 5 and the movable damper plate 6 are hinged together by a hollow shaft. The fixed damper plate 5 is fixed to the countersunk hole 21, and the fixed column seat 22 passes through the through hole 53. The transverse support 41 is fixed to the fixed column seat 22, and the nozzle of the nozzle seat 43 extends into the direct injection mixing pipe 2 through the hollow shaft. The movable damper plate 6 rotates between the two fixed column seats 22 to adjust the size of the air inlet 52 and adjust the air intake volume. Alternatively, the fixed damper plate 5 and the movable damper plate 6 can be hinged together by a nozzle, and the nozzle extends into the direct injection mixing pipe 2.

[0035] Alternatively, without setting the damper plate 5 and the moving damper plate 6, the nozzle can be inserted into the lower end of the direct injection mixing pipe 2, or the nozzle can be opposite to the direct injection mixing pipe 2.

[0036] As a further improvement of this utility model: a clearance notch 621 is provided on one side of the fan-shaped door panel 62.

[0037] The clearance notch 621 and a fixed column base 22 are fitted together and stopped, and the other side of the fan-shaped door panel 62 is fitted together and stopped with another fixed column base 22.

[0038] like Figure 3 As shown, when the fan-shaped door panel 62 covers the air inlet 52, air enters the direct injection mixing pipe 2 through the clearance gap 621 and the air inlet 52, which is the minimum air intake volume; Figure 3 In this state, the air damper 6 rotates clockwise. During the rotation, the air intake gradually increases. Then, the clearance notch 621 and a fixed column base 22 fit together, and the fan-shaped door 62 moves away from the air intake hole 52 to the maximum air intake.

[0039] As a further improvement of this utility model: the clearance notch 621 is in the shape of a superior arc.

[0040] The fixed column base 22 is cylindrical, and the diameter of the clearance notch 621 is larger than the diameter of the fixed column base 22.

[0041] The gap between the lower end of the direct injection seat 4 and the direct injection mixing pipe 2.

[0042] As a further improvement of this utility model: the cup body 1 is provided with a premixing chamber 11 connected thereto, and the ejector tube 3 is connected to the premixing chamber 11.

[0043] As a further improvement of this utility model: the lower part 23 of the direct injection mixing pipe 2 is semi-hyperbolic or frustum-shaped and compresses and mixes the fuel gas and air, while the upper part 24 is inverted frustum-shaped; for example Figure 2 As shown, the semi-hyperbola is located in the third and fourth quadrants.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A burner equipped with direct injection, characterized in that: Includes the cup body, a direct injection mixing pipe running vertically through the cup body, an ejector tube, a direct injection base, and a nozzle. The direct injection mixing pipe and the cup body are integrally molded. The lower end of the direct injection mixing pipe is equipped with two fixed column seats. The lower part of the direct injection mixing pipe is semi-hyperboid or frustum-cone and compresses and mixes gas and air, while the upper part is inverted frustum-cone. The direct injection unit includes a horizontal support frame, an air intake port, and a nozzle seat; The ejector tube and the cup body are connected, the transverse seat is fixed to the fixed column seat, and the nozzle of the nozzle seat is opposite to the direct injection mixing pipe or the nozzle extends into the lower end of the direct injection mixing pipe.

2. A burner with direct injection as described in claim 1, characterized in that: It also includes fixed damper panels and movable damper panels. The fixed damper includes a fixed shaft hole, two air inlets, and two through holes; the movable damper includes a circular base plate and two fan-shaped door plates, with a movable shaft hole on the circular base plate. The lower end of the direct injection mixing pipe is provided with a countersunk hole; The fixed damper plate and the moving damper plate are hinged together by a hollow shaft or by a nozzle. The fixed damper plate is fixed to the countersunk hole, and the fixed column seat passes through the through hole. The nozzle passes through the hollow shaft and extends into the direct injection mixing pipe.

3. A burner with direct injection as described in claim 2, characterized in that: One side of the fan-shaped door panel has a clearance notch. The clearance gap and a fixed column base are fitted together to stop the stop, and the other side of the fan-shaped door panel is fitted together with another fixed column base to stop the stop.

4. A burner with direct injection as described in claim 3, characterized in that: The clearance gap is curved. The fixed column base is cylindrical, and the diameter of the clearance notch is larger than the diameter of the fixed column base.

5. A burner with direct injection as described in claim 1, characterized in that: The gap between the lower end of the direct injection seat and the direct injection mixing pipe.

6. A burner with direct injection as described in claim 1, characterized in that: The cup body is provided with a premixing chamber, and the ejector tube is connected to the pre-embedded chamber.

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