Improved air injection type on-duty burner

Abstract

The utility model discloses a jet improved on-duty burner which comprises a burner shell, a transversely arranged central air duct is arranged in the burner shell and the front end portion, a stable combustion cover plate is fixedly installed at the front end of the central air duct and located in the front end portion, and stable combustion grooves which are circumferentially distributed at equal intervals are formed in the outer surface of the stable combustion cover plate. A plurality of on-duty gas cavities are fixedly installed in the burner shell and are circumferentially distributed at equal intervals through the round points of the central air duct, and a gas injection plate is fixedly installed at the top end of each on-duty gas cavity and located on the outer surface of the front end portion of the burner shell. And meanwhile, the gas spraying coverage area is larger, the combustion area is wider, the in-furnace heat exchange effect at an outlet of the burner is enhanced, the combustion efficiency of premixed gas is improved, and the burner has the actual use characteristics of uniform gas spraying and large-area coverage combustion.

Description

Technical Field

[0001] This utility model relates to the field of duty burner technology, specifically a jet-modified duty burner. Background Technology

[0002] A duty burner is a type of heat exchange equipment. Its basic principle is to mix combustible gas with air and then ignite it to generate high temperature and heat energy.

[0003] The main function of the duty burner is to fully combust the fuel through flame combustion to generate the required heat energy. It is widely used in various industrial production processes.

[0004] Traditional shift burners typically employ a direct-injection design, limiting them to single-hole injection. This design cannot increase the injection coverage area, leading to uneven injection and consequently lower combustion efficiency. To address this, this invention proposes an improved injection-type shift burner. Utility Model Content

[0005] The purpose of this invention is to provide a jet-modified duty burner to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a jet-improved standby burner, comprising a burner housing, a front end fixedly installed at the front end of the burner housing, a horizontally arranged central air duct inside the burner housing and the front end, a flame stabilizing hood fixedly installed at the front end of the central air duct, flame stabilizing grooves evenly spaced and circumferentially distributed on the outer surface of the flame stabilizing hood, a plurality of standby gas chambers fixedly installed inside the burner housing, the plurality of standby gas chambers being circumferentially distributed at equal intervals through the dots of the central air duct, a jet plate fixedly installed at the top of each standby gas chamber and on the outer surface of the front end, a plurality of evenly distributed jet holes and jet tubes being opened on the outer surface of the jet plate, the jet holes and jet tubes being interconnected with the standby gas chambers.

[0007] Preferably, the jet tube adopts an outwardly inclined cylinder structure design, and the inclination angle of the jet tube is between 10-15°.

[0008] Preferably, a plurality of the jet holes and jet tubes are distributed circumferentially at equal intervals through the center point of the jet plate.

[0009] Preferably, an air inlet pipe is fixedly installed on the upper surface of the burner housing, and a combustion air inlet is fixedly installed on the lower surface of the burner housing.

[0010] Preferably, the air intake pipe, the combustion air inlet, and the central air duct are interconnected.

[0011] Preferably, the burner housing has vents on both the front and back sides, and the vents are plugged with sealing plugs.

[0012] Preferably, a rear inspection plate is detachably installed at the tail end of the burner housing via bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] After the premixed gas of this invention is ejected, a portion of the premixed gas will be directly ejected through several jet holes. In this way, the use effect of multi-hole direct injection can be achieved through several evenly arranged jet holes, making the premixed gas ejected more evenly, thereby stabilizing the flame combustion effect and having the use characteristic of uniform ejection and combustion.

[0015] Another part of the premixed gas can be ejected outward through the jet tube. Since the jet tube is set at an inclined angle, the gas can be sprayed outward to the periphery of the burner, making the diameter of the flame larger and the length shorter, so that it has a larger jet coverage area, increasing the combustion area, enhancing the furnace heat exchange effect at the burner outlet, and improving the combustion efficiency of the premixed gas. Thus, it has the practical characteristics of uniform jetting and large-area coverage combustion.

[0016] This invention improves the jet structure of the standby burner, resulting in more uniform gas ejection, a larger jet coverage area, and a wider combustion area. This enhances the in-furnace heat exchange at the burner outlet and improves the combustion efficiency of the premixed gas, thus achieving the practical characteristics of uniform jet ejection and large-area combustion coverage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external three-dimensional structure of the burner housing according to an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the tail section of the burner housing according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the burner shell according to an embodiment of the present invention;

[0020] Figure 4 This is an embodiment of the present utility model. Figure 1 A magnified structural diagram of region A.

[0021] In the diagram: 1. Burner housing; 2. Front end; 3. Central air duct; 4. Flame stabilizing cover; 5. Serving gas chamber; 6. Injector plate; 7. Injector hole; 8. Injector tube; 9. Air inlet pipe; 10. Combustion air inlet; 11. Vent; 12. Rear inspection plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0025] Please see Figure 1-4 This utility model provides one embodiment: a jet-improved duty burner, including a burner housing 1, a front end portion 2 fixedly installed at the front end of the burner housing 1, and a horizontally arranged central air duct 3 inside the burner housing 1 and the front end portion 2. See the attached specification for details. Figure 1 and Figure 3 As shown, a combustion stabilizing cover plate 4 is fixedly installed inside the front end 2 of the central air duct 3. The outer surface of the combustion stabilizing cover plate 4 is provided with combustion stabilizing grooves that are evenly spaced and distributed in a circular pattern. By setting the combustion stabilizing cover plate 4, the premixed gas inside the central air duct 3 can enter the furnace through the combustion stabilizing cover plate 4. The uniformly set combustion stabilizing cover plate 4 can play a role in uniform flow distribution, so that the premixed gas entering the furnace can be more uniform, which has the practical function of stable combustion and improves the overall safety of use.

[0026] Several standby gas chambers 5 are fixedly installed inside the burner housing 1. The several standby gas chambers 5 are circumferentially distributed at equal intervals through the dots of the central air duct 3. A jet plate 6 is fixedly installed on the top of each standby gas chamber 5 and on the outer surface of the front end 2.

[0027] Among them, the outer surface of the jet plate 6 is provided with several evenly distributed jet holes 7 and jet cylinders 8, and the jet holes 7 and jet cylinders 8 are interconnected with the duty gas chamber 5.

[0028] Please refer to the instruction manual for details. Figure 4 As shown, the jet tube 8 adopts an outwardly inclined cylindrical structure design, with an inclination angle between 10 and 15°. Several jet holes 7 and jet tube 8 are distributed circumferentially at equal intervals through the center point of the jet plate 6.

[0029] Based on the above structure, the jet plate 6 of the duty gas chamber 5 of this utility model is provided with a plurality of evenly distributed jet holes 7 and jet cylinders 8. In actual use, part of the premixed gas enters the jet plate 6 through the duty gas chamber 5 and is ejected through the evenly arranged jet holes 7 and jet cylinders 8. After being ejected, part of the premixed gas will be directly ejected through the plurality of jet holes 7. Thus, the use effect of multi-hole direct injection can be achieved through the plurality of evenly arranged jet holes 7, making the premixed gas ejected more evenly, thereby stabilizing the flame combustion effect and having the use characteristic of uniform ejection combustion.

[0030] Another portion of the premixed gas can be ejected outward through the jet tube 8. Because the jet tube 8 is set at an inclined angle, the gas can be sprayed outwards to the perimeter of the burner, increasing the diameter and shortening the length of the flame, thus providing a larger jet coverage area, increasing the combustion area, enhancing the furnace heat exchange effect at the burner outlet, and improving the combustion efficiency of the premixed gas. This results in uniform jetting and large-area coverage combustion, a characteristic found in practical applications.

[0031] In this embodiment, an air inlet pipe 9 is fixedly installed on the upper surface of the burner housing 1, and a combustion air inlet 10 is fixedly installed on the lower surface of the burner housing.

[0032] Among them, the air intake pipe 9, the combustion air inlet 10 and the central air duct 3 are interconnected;

[0033] Thus, through the air inlet pipe 9 and the combustion air inlet 10, gas and air or oxygen can be injected separately, so that they are premixed in the central air duct 3.

[0034] In this embodiment, vents 11 are provided on both the front and back sides of the burner housing 1, and a sealing plug is inserted into the vent 11.

[0035] In this embodiment, in order to open and inspect the interior of the central air duct 3, a rear inspection plate 12 is detachably installed at the tail end of the burner housing 1 by bolts.

[0036] Working principle: In actual use, the front end 2 of the burner shell 1 can be connected to the external combustion furnace. The gas injection pipe can be connected to the gas injection pipe through the provided air inlet 9, and the oxygen or air injection pipe can be connected to the provided combustion air inlet 10, so that gas and air can be injected separately.

[0037] The injected gas and air enter the central air duct 3 for premixing to form premixed gas;

[0038] Part of the premixed gas can be directly entered into the external furnace for combustion through the top of the central air duct 3. This utility model is equipped with a combustion stabilizing cover plate 4. The premixed gas inside the central air duct 3 can enter the furnace through the combustion stabilizing cover plate 4. The uniformly arranged combustion stabilizing cover plate 4 can play a role in uniform flow distribution, so that the premixed gas entering the furnace can be more uniform, which has a stable combustion effect, improves the overall combustion safety, and improves the combustion quality of the gas.

[0039] Another portion of the premixed gas can enter the duty gas chamber 5. The jet plate 6 of the duty gas chamber 5 of this utility model is provided with several evenly distributed jet holes 7 and jet cylinders 8. In actual use, some of the premixed gas enters the jet plate 6 through the duty gas chamber 5 and is ejected through the evenly arranged jet holes 7 and jet cylinders 8. After being ejected, some of the premixed gas will be directly ejected through several jet holes 7. In this way, the use effect of multi-hole direct injection can be achieved through several evenly arranged jet holes 7, making the premixed gas ejected more evenly, thereby stabilizing the flame combustion effect and having the use characteristic of uniform ejection combustion.

[0040] Another part of the premixed gas can be ejected outward through the jet tube 8. Since the jet tube 8 is set at an inclined angle, the gas can be ejected outward to the periphery of the burner, making the diameter of the flame larger and the length shorter, so that it has a larger jet coverage area, increases the combustion area, enhances the furnace heat exchange effect at the burner outlet, and improves the combustion efficiency of the premixed gas. Thus, it has the practical characteristics of uniform jetting and large-area coverage combustion.

[0041] Based on the above description, this utility model improves the jet structure of the standby burner, thereby making the gas jet more uniform, increasing the jet coverage area, expanding the combustion area, enhancing the furnace heat exchange effect at the burner outlet, and improving the combustion efficiency of the premixed gas. This results in the practical application characteristics of uniform jet jetting and large-area combustion coverage.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A jet-modified standby burner, comprising a burner housing (1), characterized in that, A front end (2) is fixedly installed at the front end of the burner housing (1). A horizontally arranged central air duct (3) is opened inside the burner housing (1) and the front end (2). A flame stabilizing cover plate (4) is fixedly installed at the front end of the central air duct (3) and inside the front end (2). The flame stabilizing cover plate (4) has flame stabilizing grooves distributed in a circle at equal intervals on its outer surface. A number of duty gas chambers (5) are fixedly installed inside the burner housing (1). The duty gas chambers (5) are distributed in a circle at equal intervals through the dots of the central air duct (3). A jet plate (6) is fixedly installed at the top of each duty gas chamber (5) and on the outer surface of the front end (2). A number of evenly distributed jet holes (7) and jet cylinders (8) are opened on the outer surface of the jet plate (6). The jet holes (7) and jet cylinders (8) are interconnected with the duty gas chambers (5).

2. The jet-improved shift burner according to claim 1, characterized in that: The jet tube (8) adopts an outward tilting cylindrical structure design, and the tilt angle of the jet tube (8) is between 10-15°.

3. The jet-improved shift burner according to claim 1, characterized in that: Several of the jet holes (7) and jet tubes (8) are distributed circumferentially at equal intervals through the center point of the jet plate (6).

4. The jet-improved shift burner according to claim 1, characterized in that: An air inlet pipe (9) is fixedly installed on the upper surface of the burner housing (1), and an auxiliary combustion air inlet (10) is fixedly installed on the lower surface of the burner housing.

5. A jet-modified standby burner according to claim 4, characterized in that: The air intake pipe (9), the combustion air inlet (10), and the central air duct (3) are interconnected.

6. The jet-improved shift burner according to claim 1, characterized in that: The burner housing (1) has vents (11) on both the front and back sides, and the vents (11) are filled with sealing plugs.

7. A jet-modified standby burner according to claim 1, characterized in that: The burner housing (1) is detachably fitted with a rear inspection plate (12) by bolts at its tail end.

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