Furnace end with single injection pipe

Abstract

A single-injection-pipe furnace end comprises a furnace end body and an injection pipe, the furnace end body comprises a center fire cover seat, an outer ring gas groove and a center gas guide pipe, and the center fire cover seat and the outer ring gas groove are connected and communicated through the center gas guide pipe; and the injection pipe is communicated with the outer ring gas groove and is opposite to the central gas guide pipe. The injection pipe is communicated with the outer ring fuel gas groove, the center gas guide pipe is communicated with the center fire cover and the outer ring fuel gas groove, the injection pipe is opposite to the center gas guide pipe, pressure balance of fuel gas in the center fire cover seat and the outer ring fuel gas groove is achieved, combustion is sufficient, and energy efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a stove burner, and more particularly to a burner head. Background Technology

[0002] The existing technology, Chinese Patent 200810029855.1, discloses a flame cap and a burner using the flame cap. The flame cap has a set of strip-shaped flame holes, and the cap body has a set of discrete strip-shaped protrusions on its circumference. These strip-shaped protrusions and flame holes are arranged radially along the radius of the cap body. The flame holes are inclined, with their outlets located below the upper surface of the strip-shaped protrusions. This arrangement is equivalent to having a vertical obstruction outside the flame cap, preventing the flame holes from being exposed vertically and thus preventing dirt from falling vertically and clogging them. Furthermore, the burner of this invention includes a nozzle, an air regulating plate, an injector tube, and a burner head base. The nozzle is connected to the injector tube, the air regulating plate is located inside the injector tube at the connection point with the nozzle, the injector tube is connected to the burner head base, and the flame cap is located on the burner head base. Only one injector tube is needed to supply gas to both chambers. The problem is that the ejector tube is directly connected to the two chambers, and the gas pressure in the inner annular flame is high, resulting in incomplete combustion.

[0003] Chinese Patent 201811020441.2 discloses a burner. The burner includes a flame distributor, which comprises a baffle plate and an injector. The flame distributor forms at least two gas mixing chambers located on the baffle plate. The injector is connected to the baffle plate and penetrates portions of the baffle plate corresponding to the at least two gas mixing chambers, thus directly communicating with each of the at least two gas mixing chambers. The problem is that the injector's direct communication with two chambers results in high gas pressure in the inner annular flame, leading to incomplete combustion. Utility Model Content

[0004] The purpose of this invention is to provide a single-ejector burner head, which features uniform gas distribution in the central burner cap and outer ring gas groove, and high energy efficiency.

[0005] This invention is achieved as follows: a single-ejector burner head, characterized in that it comprises a burner head body and an ejector tube.

[0006] The burner body includes a central burner cap seat, an outer ring gas groove, and a central gas guide pipe. The central gas guide pipe connects and communicates the central burner cap seat and the outer ring gas groove.

[0007] The ejector tube is connected to the outer ring gas tank and is opposite to the central gas guide tube.

[0008] The single-ejector burner head is characterized in that the accommodating cavity of the central gas guide tube gradually decreases from the gas inlet end to the gas outlet end.

[0009] The single-ejector burner head is characterized in that the central burner cap seat is annular or cylindrical with an opening at the top.

[0010] The single-ejector burner head is characterized in that: the bottom plate of the outer ring gas trough has an upward angle from front to back and an acute angle with the horizontal plane below;

[0011] The ejector tube and the central air duct form an acute angle with the horizontal plane below.

[0012] The single ejector tube furnace head is characterized in that the diameter of the gas inlet end of the central gas guide tube is smaller than the diameter of the gas outlet end of the ejector tube.

[0013] The single-ejector burner head is characterized by the following: it also includes radial stiffeners, which are arranged on the left and right sides along a diameter line and connect the central burner seat and the outer ring gas groove.

[0014] The single-ejector burner head is characterized in that: the outer ring gas groove is provided with an air inlet and a fixing seat.

[0015] The ejector tube is provided with an outlet port and a flange at its outlet end;

[0016] The air outlet is inserted into the air inlet, and secured with screws, flanges, and mounting brackets.

[0017] This utility model discloses a single-ejector burner head, in which the ejector tube is connected to the outer ring gas groove, and the central gas guide tube is connected to the central burner cap and the outer ring gas groove. The ejector tube and the central gas guide tube are opposite each other, so as to achieve a balance of gas pressure in the central burner cap seat and the outer ring gas groove, so as to achieve complete combustion and improve energy efficiency. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model.

[0019] Figure 2 yes Figure 1 A-A view.

[0020] Figure 3 yes Figure 1 B-B view.

[0021] Figure 4 This is a perspective view of the present invention.

[0022] Figure 5 This is one of the exploded perspective views of this utility model.

[0023] Figure 6 This is the second exploded perspective view of this utility model. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] like Figure 1 , Figure 2 As shown, a single-ejector-tube 2 furnace head includes a furnace head body 1 and an ejector tube 2.

[0027] The burner body 1 includes a central burner cap seat 11, an outer ring gas groove 12 and a central gas guide pipe 13. The central gas guide pipe 13 connects and communicates the central burner cap seat 11 and the outer ring gas groove 12.

[0028] The ejector tube 2 is connected to the outer ring gas tank 12 and is opposite to the central gas guide tube 13.

[0029] As a further improvement of this utility model: the accommodating cavity of the central air guide pipe 13 gradually decreases from the air inlet end to the air outlet end. Or, in other words: the inner cavity of the central air guide pipe 13 is shaped like a frustum cone, which plays the role of compressing the gas and air mixture. After the gas and air mixture is compressed, it is released in the central burner seat 11, and the gas and air are mixed evenly.

[0030] The central flame cap seat 11 is annular and has an axial secondary air hole 111 along the axis. Alternatively, the central flame cap seat 11 can be a cylindrical shape with an opening at the top.

[0031] As a further improvement of this utility model: the bottom plate of the outer ring gas tank 12 has an upward angle from front to back and an acute angle α with the horizontal plane below;

[0032] The ejector tube 2 and the central gas guide tube 13 form an acute angle with the horizontal plane below. With this structure, when the central burner and the outer ring burner are burning, a negative pressure is generated, and the gas-air mixture quickly enters the central burner seat and the outer ring gas groove.

[0033] As a further improvement of this utility model: the diameter of the air inlet end of the central air guide tube 13 is smaller than the diameter of the air outlet end of the ejector tube 2.

[0034] As a further improvement of this utility model, it also includes radial stiffeners 14.

[0035] Two radial stiffeners 14 are arranged on the same diameter line and connect the central burner seat 11 and the outer ring gas channel 12. One radial stiffener 14 is provided with an ignition needle and a sensing needle hole.

[0036] As a further improvement of this utility model: the outer ring gas tank 12 is provided with an air inlet 121 and a fixing seat 122.

[0037] The ejector tube 2 is provided with an outlet port 21 and a flange 22 at its outlet end;

[0038] The air outlet 21 is inserted into the air inlet 121, and the flange 22 and the mounting base 122 are fixed by screws.

[0039] 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 single-ejector furnace head, characterized in that: Including the burner body and ejector tube, The burner body includes a central burner cap seat, an outer ring gas groove, and a central gas guide pipe. The central gas guide pipe connects and communicates the central burner cap seat and the outer ring gas groove. The ejector tube is connected to the outer ring gas tank and is opposite to the central gas guide tube.

2. The single-ejector furnace head according to claim 1, characterized in that: The accommodating cavity of the central air duct gradually decreases from the air inlet end to the air outlet end.

3. A single-ejector furnace head according to claim 1, characterized in that: The central fire cap seat is either annular or cylindrical with an opening at the top.

4. A single-ejector furnace head according to claim 1, characterized in that: The bottom plate of the outer ring gas tank has an upward angle from front to back and an acute angle with the horizontal plane below; The ejector tube and the central air duct form an acute angle with the horizontal plane below.

5. A single-ejector furnace head according to claim 1, characterized in that: The diameter of the air inlet end of the central air duct is smaller than the diameter of the air outlet end of the ejector tube.

6. A single-ejector furnace head according to claim 1, characterized in that: It also includes radial stiffeners, The radial stiffeners are arranged on the left and right sides along a diameter line and connect the central burner seat and the outer ring gas trough.

7. A single-ejector furnace head according to claim 1, 2, 3, 4, 5 or 6, characterized in that: The outer ring gas tank is equipped with an air inlet and a fixing seat. The ejector tube is equipped with an outlet port and a flange at its outlet end; Insert the exhaust port into the intake port, and use screws to secure the flange and mounting base.

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