A high-efficiency combustion system with air preheating structure

Abstract

This utility model belongs to the field of combustion equipment technology, and particularly relates to a high-efficiency combustion system with an air preheating structure, including an air intake mechanism, a preheating mechanism, an ignition mechanism, a combustion mechanism, and a flame stabilization mechanism. The air intake mechanism includes a gas pipe and a gas distribution pipe. The preheating mechanism includes a support pipe, a heating core pipe, a heat-conducting pipe, and heat-conducting plates. The combustion mechanism includes a combustion pipe and a flame nozzle. The ignition mechanism includes an ignition fixing ring, a first ignition needle, and a second ignition needle; the ignition fixing ring is fixedly connected to the outside of the gas pipe. The high-efficiency combustion system with an air preheating structure provided by this application, by setting up a preheating mechanism, uses heat-conducting pipes and heat-conducting plates to preheat the air and gas entering the gas pipe, increasing the temperature of the gas and air, enhancing the activity of the gas, making it easier for the gas to mix with air and reach the ignition point, shortening the time for the gas to reach the combustion point, thereby significantly improving combustion efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of combustion equipment technology, and in particular relates to a high-efficiency combustion system with an air preheating structure. Background Technology

[0002] In existing combustion systems, cold air and combustion gas are commonly introduced directly. This intake method forces the combustion gas to travel a longer path to reach the combustion point. During this process, the low temperature of the cold air reduces the reactivity of the combustion gas, thus prolonging the time it takes for the gas to reach the combustion point and resulting in low combustion efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency combustion system with an air preheating structure, which aims to solve the technical problem in the prior art that the low temperature of cold air reduces the activity of the combustion gas, thereby lengthening the time for the combustion gas to reach the combustion point and resulting in low combustion efficiency.

[0004] To achieve the above objectives, the present invention provides a high-efficiency combustion system with an air preheating structure, comprising an air intake mechanism, a preheating mechanism, an ignition mechanism, a combustion mechanism, and a flame stabilization mechanism. The preheating mechanism is disposed on the air intake mechanism, the ignition mechanism is disposed on the outside of the air intake mechanism, and the combustion mechanism is disposed at one end of the air intake mechanism and connected to the flame stabilization mechanism.

[0005] The air intake mechanism includes a gas pipe and a gas distribution pipe, wherein the gas distribution pipe is connected to the outside of the gas pipe;

[0006] The preheating mechanism includes a support tube, a heating core tube, a heat-conducting tube, and a heat-conducting plate. The support tube is connected to the gas pipe and the heat-conducting tube respectively. One end of the heating core tube is disposed inside the heat-conducting tube, and the other end extends out of the heat-conducting tube. The heat-conducting tube is disposed inside the gas pipe. The heat-conducting plate is connected to the outside of the heat-conducting tube and is disposed inside the gas pipe and spaced apart from the gas pipe.

[0007] The combustion mechanism includes a combustion tube and a flame nozzle. One end of the combustion tube is inserted into the gas pipe, and the other end is connected to the flame nozzle.

[0008] As an optional solution of this utility model, the gas distribution pipe is provided in multiple parts and is uniformly and fixedly connected to the outside of the gas pipe in a ring shape.

[0009] As an optional solution of this utility model, multiple heat-conducting plates are provided and are evenly and fixedly connected to the outside of the heat-conducting pipe, with adjacent heat-conducting plates arranged in parallel and spaced apart; the distance between the heat-conducting plate and the gas pipe is 2-5 cm.

[0010] As an optional solution of this utility model, the ignition mechanism includes an ignition fixing ring, a first ignition needle and a second ignition needle. The ignition fixing ring is fixedly connected to the outside of the gas pipe. The first ignition needle and the second ignition needle are both fixedly connected to the ignition fixing ring. The first ignition needle and the second ignition needle are arranged parallel to each other and spaced apart.

[0011] As an optional solution of this utility model, the flame nozzle is provided with a flame hole on its side, and the flame hole is provided in multiple ways and is evenly arranged in a ring on the flame nozzle.

[0012] As an optional solution of this utility model, the flame stabilizing mechanism includes a flame stabilizing cover and a swirl vane. The flame stabilizing cover is fixedly connected to the gas distribution pipe, and the swirl vane is connected to the outside of the flame nozzle and disposed inside the flame stabilizing cover.

[0013] As an optional solution of this utility model, multiple swirl vanes are provided and are uniformly and annularly fixed to the side of the flame nozzle.

[0014] The above-mentioned technical solutions in the high-efficiency combustion system with air preheating structure provided in this embodiment of the utility model have at least one of the following technical effects:

[0015] The high-efficiency combustion system with air preheating structure provided in this application preheats the air and gas entering the gas pipe by setting up a preheating mechanism and using heat-conducting pipes and heat-conducting plates. This increases the temperature of the gas and air, enhances the activity of the gas, makes it easier for the gas to mix with air and reach the ignition point, and shortens the time for the gas to reach the combustion point, thereby significantly improving combustion efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A perspective view of a high-efficiency combustion system with an air preheating structure provided for an embodiment of this utility model.

[0018] Figure 2 A perspective view of a high-efficiency combustion system with an air preheating structure provided for an embodiment of this utility model.

[0019] Figure 3 A side view of a high-efficiency combustion system with an air preheating structure provided in an embodiment of this utility model.

[0020] Figure 4for Figure 3 Sectional view along the middle AA.

[0021] Figure 5 The perspective view of the high-efficiency combustion system with air preheating structure provided in the embodiment of this utility model, omitting the flame stabilizer.

[0022] The following are the labeling elements in the figure:

[0023] 1. Intake mechanism; 2. Preheating mechanism; 3. Ignition mechanism; 4. Combustion mechanism; 5. Flame stabilization mechanism;

[0024] 11. Gas pipe; 12. Gas distribution pipe;

[0025] 21. Support tube; 22. Heating core tube; 23. Heat-conducting tube; 24. Heat-conducting plate;

[0026] 31. Ignition retaining ring; 32. First ignition needle; 33. Second ignition needle;

[0027] 41. Combustion tube; 42. Flame nozzle;

[0028] 51. Flame stabilizer; 52. Swirl vane;

[0029] 421. Flame-breathing hole. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the 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 intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0031] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0034] In one embodiment of this utility model, such as Figures 1-5 As shown, a high-efficiency combustion system with an air preheating structure is provided, including an intake mechanism 1, a preheating mechanism 2, an ignition mechanism 3, a combustion mechanism 4, and a flame stabilization mechanism 5. The preheating mechanism 2 is located on the intake mechanism 1, the ignition mechanism 3 is located outside the intake mechanism 1, and the combustion mechanism 4 is located at one end of the intake mechanism 1 and connected to the flame stabilization mechanism 5.

[0035] The intake mechanism 1 includes a gas pipe 11 and a gas distribution pipe 12, with the gas distribution pipe 12 fixedly connected to the outside of the gas pipe 11. Multiple gas distribution pipes 12 are provided and are uniformly and annularly fixedly connected to the outside of the gas pipe 11, which can make the gas more evenly distributed and provide conditions for subsequent full mixing with air.

[0036] The preheating mechanism 2 includes a support tube 21, a heating core tube 22, a heat-conducting tube 23, and heat-conducting plates 24. The support tube 21 is connected to the gas pipe 11 and the heat-conducting tube 23. One end of the heating core tube 22 is disposed inside the heat-conducting tube 23, and the other end extends out of the heat-conducting tube 23. The heat-conducting tube 23 is disposed inside the gas pipe 11. The heat-conducting plates 24 are fixedly connected to the outside of the heat-conducting tube 23 and are disposed inside the gas pipe 11, spaced apart from the gas pipe 11. Multiple heat-conducting plates 24 are provided and are evenly fixedly connected to the outside of the heat-conducting tube 23, with adjacent heat-conducting plates 24 arranged parallel and spaced apart. The distance between the heat-conducting plates 24 and the gas pipe 11 is 2-5 cm, preferably 3 cm. The arrangement of multiple heat-conducting plates 24 increases the contact area with the gas and air, improving the preheating efficiency, while the 3 cm distance ensures heat transfer and avoids airflow obstruction. The heating core tube 22 can be made of nickel-chromium alloy resistance wire. The Cr20Ni80 alloy tube has good high-temperature strength and oxidation resistance, ensuring stable operation at high temperatures and guaranteeing heating effect. The heat-conducting tube 23 can be made of copper to ensure heat conduction. A thermally conductive insulating material, such as magnesium oxide powder, can be filled between the heating core tube 22 and the heat-conducting tube 23. The heat-conducting plate 24 can be made of copper, such as T2 copper, which has a high thermal conductivity and can quickly conduct heat, improving the overall heat conduction effect of the preheating mechanism 2. The heating core tube 22 is connected to an external power source via wires. Because the heating core tube 22 uses nickel-chromium alloy resistance wire, it heats up when energized and conducts heat to the heat-conducting tube 23 through the magnesium oxide powder. Since both the heat-conducting tube 23 and the heat-conducting plate 24 are made of copper, they have good electrical conductivity, improving heat conduction efficiency. This accelerates the heating and preheating of the gas in the gas pipe 11, speeding up the gas's arrival at its ignition point and improving combustion efficiency.

[0037] The combustion mechanism 4 includes a combustion tube 41 and a flame nozzle 42. One end of the combustion tube 41 is connected to the gas pipe 11, and the other end is connected to the flame nozzle 42. The flame nozzle 42 has multiple flame holes 421 on its side, which are evenly arranged in a ring on the flame nozzle 42. The design of multiple flame holes 421 makes the flame distribution more uniform and the combustion more complete.

[0038] The ignition mechanism 3 includes an ignition retaining ring 31, a first ignition needle 32, and a second ignition needle 33. The ignition retaining ring 31 is fixedly connected to the outside of the gas pipe 11. The first ignition needle 32 and the second ignition needle 33 are both fixedly connected to the ignition retaining ring 31. The first ignition needle 32 and the second ignition needle 33 are arranged parallel to each other and spaced apart. The arrangement of the two ignition needles improves the reliability of ignition.

[0039] The flame stabilizing mechanism 5 includes a flame stabilizing cover 51 and swirl vanes 52. The swirl vanes 52 are fixedly connected to the outside of the flame nozzle 42 and are disposed inside the flame stabilizing cover 51. The flame stabilizing cover 51 is fixedly connected to the gas distribution pipe 12. The flame stabilizing cover 51 plays a role in concentrating and protecting the flame, reducing flame flickering and extinction, and improving combustion efficiency. Multiple swirl vanes 52 are provided and are uniformly fixedly connected to the side of the flame nozzle 42 in a ring. The swirl vanes 52 can generate swirl in the airflow, enhancing the stability of the flame.

[0040] The high-efficiency combustion system with air preheating structure provided in this application preheats the air and gas entering the gas pipe 11 by setting up a preheating mechanism 2 and using heat-conducting pipe 23 and heat-conducting plate 24. This increases the temperature of the gas and air, enhances the activity of the gas, makes it easier for the gas to mix with air and reach the ignition point, and shortens the time for the gas to reach the combustion point, thereby significantly improving the combustion efficiency.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high efficiency combustion system with air preheating structure, characterized in that, It includes an intake mechanism, a preheating mechanism, an ignition mechanism, a combustion mechanism, and a flame stabilization mechanism. The preheating mechanism is located on the intake mechanism, the ignition mechanism is located outside the intake mechanism, and the combustion mechanism is located at one end of the intake mechanism and connected to the flame stabilization mechanism. The air intake mechanism includes a gas pipe and a gas distribution pipe, wherein the gas distribution pipe is connected to the outside of the gas pipe; The preheating mechanism includes a support tube, a heating core tube, a heat-conducting tube, and a heat-conducting plate. The support tube is connected to the gas pipe and the heat-conducting tube respectively. One end of the heating core tube is disposed inside the heat-conducting tube, and the other end extends out of the heat-conducting tube. The heat-conducting tube is disposed inside the gas pipe. The heat-conducting plate is connected to the outside of the heat-conducting tube and is disposed inside the gas pipe and spaced apart from the gas pipe. The combustion mechanism includes a combustion tube and a flame nozzle. One end of the combustion tube is inserted into the gas pipe, and the other end is connected to the flame nozzle.

2. A high efficiency combustion system with air preheat according to claim 1, wherein, The gas distribution pipes are provided in multiple forms and are uniformly and fixedly connected to the outside of the gas pipe in a ring shape.

3. A high efficiency combustion system with air preheat according to claim 1, wherein, Multiple heat-conducting plates are provided and are evenly and fixedly connected to the outside of the heat-conducting pipe. Adjacent heat-conducting plates are arranged in parallel and spaced apart. The distance between the heat-conducting plate and the gas pipe is 2-5 cm.

4. A high efficiency combustion system with air preheat according to claim 1, wherein, The ignition mechanism includes an ignition retaining ring, a first ignition needle, and a second ignition needle. The ignition retaining ring is fixedly connected to the outside of the gas pipe. The first ignition needle and the second ignition needle are both fixedly connected to the ignition retaining ring. The first ignition needle and the second ignition needle are arranged parallel to each other and spaced apart.

5. A high efficiency combustion system with air preheat according to claim 1, wherein, The flame nozzle has multiple flame holes on its side, which are arranged in a ring and uniformly distributed on the flame nozzle.

6. A high efficiency combustion system with air preheat according to claim 1, wherein, The flame stabilizing mechanism includes a flame stabilizing cover and a swirl vane. The flame stabilizing cover is fixedly connected to the gas distribution pipe, and the swirl vane is connected to the outside of the flame nozzle and disposed inside the flame stabilizing cover.

7. A high efficiency combustion system with air preheat according to claim 6, wherein, The swirl vanes are provided in multiples and are uniformly and annularly fixed to the side of the flame nozzle.

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