Sharp-cooling and quick-heating resistant silicon carbide flame nozzle

Abstract

The utility model discloses a quick-cooling and quick-heating resistant silicon carbide flame nozzle which comprises a mounting pipe, a spray head arranged at the right end of the mounting pipe, a cavity formed in the spray head, a mounting cover arranged on the upper side of the left end of the mounting pipe, and a heat exchange mechanism, the heat exchange mechanism comprises a cross rod and a push plate, the push plate is in sliding connection with the interior of the cavity, water through holes which are evenly distributed are formed in the right end of the push plate, the cross rod is arranged on the upper side of the left wall of the cavity, the right end of the cross rod is fixedly connected with the left end of the push plate, and the heat exchange mechanism further comprises a control switch which is located outside the mounting pipe. According to the rapid cooling and rapid heating resistant silicon carbide flame nozzle, the rapid cooling and rapid heating resistant silicon carbide flame nozzle can be preheated or cooled through a medium, the medium is evenly distributed in the cavity, the temperature gradient is reduced, the cost is reduced, meanwhile, inspection and repair are relatively simple, and the rapid cooling and rapid heating resistant silicon carbide flame nozzle is suitable for large-scale popularization and application. And rapid cooling and rapid heating conditions can be better borne.

Description

Technical Field

[0001] This utility model relates to the field of flame nozzle technology, specifically a silicon carbide flame nozzle resistant to rapid cooling and heating. Background Technology

[0002] The rapid heating and cooling resistant silicon carbide burner is a high-performance combustion device used in high-temperature environments that require frequent and rapid heating or cooling. This type of burner is commonly used in industrial furnaces, kilns, glass melting furnaces, and other applications requiring rapid temperature changes, and can significantly improve the operating efficiency and service life of industrial furnaces, kilns, and other equipment.

[0003] In order to better withstand rapid heating and cooling conditions, silicon carbide burners resistant to rapid heating and cooling are often coated with a carbide coating (such as tungsten carbide, titanium carbide, etc.) inside the burner using a coating equipment. This reduces the thermal stress of the burner under rapid heating and cooling conditions and extends its service life.

[0004] While existing silicon carbide burners resistant to rapid cooling and heating can reduce thermal stress under such conditions through carbide coatings, the cost of coating preparation is relatively high, and repairing the coating is difficult if it is damaged, further increasing the workload of inspection and repair. Therefore, we propose a silicon carbide burner resistant to rapid cooling and heating. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a silicon carbide burner resistant to rapid heating and cooling. It can preheat or cool the silicon carbide burner through a medium. The medium is evenly distributed in the cavity to avoid local overheating or overcooling, reduce temperature gradient, reduce cost, and make inspection and repair relatively simple. It can better withstand rapid heating and cooling conditions and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a silicon carbide flame nozzle resistant to rapid cooling and heating, comprising an installation tube, a nozzle provided at the right end of the installation tube, a cavity provided inside the nozzle, an installation cover provided on the upper side of the left end of the installation tube, and a heat exchange mechanism.

[0007] Heat exchange mechanism: It includes a crossbar and a push plate. The push plate is slidably connected to the inside of the cavity. The right end of the push plate is provided with evenly distributed water holes. The upper side of the left wall of the cavity is provided with a crossbar. The right end of the crossbar is fixedly connected to the left end of the push plate. It can preheat or cool the silicon carbide burner resistant to rapid heating and cooling through the medium. The medium is evenly distributed in the cavity to avoid local overheating or overcooling, reduce temperature gradient, reduce cost, and make inspection and repair relatively simple. It can better withstand rapid heating and cooling conditions.

[0008] Furthermore, it also includes a control switch, which is located outside the mounting tube. The input terminal of the control switch is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0009] Furthermore, the heat exchange mechanism also includes an inlet pipe and a drain pipe. The inlet pipe is located in the inlet port on the left side of the upper end of the nozzle, and an inlet valve is connected in series in the middle of the inlet pipe. The drain pipe is located in the drain port on the left side of the lower end of the nozzle, and a drain valve is connected in series in the middle of the drain pipe. Both the inlet pipe and the drain pipe are connected to the cavity, and can preheat or cool the nozzle through the medium.

[0010] Furthermore, the heat exchange mechanism also includes a fixed rod and a connecting plate. The fixed rod is respectively disposed on the front and rear sides of the left wall of the mounting cover. The fixed rod is slidably connected to the sliding hole corresponding to the left end of the connecting plate. The right end of the connecting plate is fixedly connected to the left end of the crossbar. The upper end of the connecting plate is provided with an avoidance groove, which can drive the push plate to move through the crossbar.

[0011] Furthermore, the heat exchange mechanism also includes an output rod, a central wheel, and an adjusting rod. The output rod is rotatably connected to the middle of the top wall of the mounting cover. A central wheel is provided at the lower end of the output rod, and an adjusting rod is provided on the front side of the lower end of the central wheel. The lower end of the adjusting rod is located inside the clearance groove and can move the crossbar through the connecting plate.

[0012] Furthermore, a motor is provided in the middle of the upper end of the mounting cover. The lower end of the motor output shaft is fixedly connected to the upper end of the output rod. The input end of the motor is electrically connected to the output end of the control switch, which can drive the central wheel to rotate.

[0013] Furthermore, a sealing rubber ring is provided in the mounting groove opened on the upper side of the left wall of the cavity. The crossbar is slidably connected to the inner arc surface of the sealing rubber ring, and the sealing rubber ring plays a sealing role to prevent the medium from flowing into the interior of the mounting cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This silicon carbide burner nozzle, which is resistant to rapid cooling and heating, has the following advantages:

[0015] It can preheat or cool the silicon carbide burner resistant to rapid heating and cooling through a medium. The medium is evenly distributed in the cavity to avoid local overheating or overcooling, reduce temperature gradient, improve overall heat exchange efficiency, reduce costs, and make inspection and repair relatively simple. It also reduces thermal stress, prevents material fatigue, and can better withstand rapid heating and cooling conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the right side of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the mounting cover of this utility model;

[0019] Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0020] In the diagram: 1. Installation pipe, 2. Control switch, 3. Nozzle, 4. Cavity, 5. Heat exchange mechanism, 51. Water inlet pipe, 52. Drain pipe, 53. Crossbar, 54. Push plate, 55. Fixing rod, 56. Connecting plate, 57. Output rod, 58. Center wheel, 59. Adjusting rod, 6. Mounting cover, 7. Sealing rubber ring, 8. Motor. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: a silicon carbide flame nozzle resistant to rapid cooling and heating, including an installation tube 1, a nozzle 3 is provided at the right end of the installation tube 1, a cavity 4 is provided inside the nozzle 3, an installation cover 6 is provided on the upper side of the left end of the installation tube 1, and a heat exchange mechanism 5 is also included.

[0023] The heat exchange mechanism 5 includes a crossbar 53 and a push plate 54. The push plate 54 is slidably connected to the interior of the cavity 4. The right end of the push plate 54 is provided with evenly distributed water passage holes. The crossbar 53 is provided on the upper side of the left wall of the cavity 4. The right end of the crossbar 53 is fixedly connected to the left end of the push plate 54. The heat exchange mechanism 5 also includes an inlet pipe 51 and a drain pipe 52. The inlet pipe 51 is located in the inlet port opened on the left side of the upper end of the nozzle 3. An inlet valve is connected in series in the middle of the inlet pipe 51. The drain pipe 52 is located in the drain port opened on the left side of the lower end of the nozzle 3. A drain valve is connected in series in the middle of the drain pipe 52. Both the inlet pipe 51 and the drain pipe 52 are connected to the cavity 4. The heat exchange mechanism 5 also includes a fixing rod 55 and a connecting plate 56. The fixing rod 55 is respectively located on the front and rear sides of the left wall of the mounting cover 6. The fixing rod 55 is connected to the connecting plate 56. The left end of the connecting plate 56 is connected to the sliding hole, and the right end of the connecting plate 56 is fixedly connected to the left end of the crossbar 53. The upper end of the connecting plate 56 is provided with a relief groove. The heat exchange mechanism 5 also includes an output rod 57, a central wheel 58 and an adjusting rod 59. The output rod 57 is rotatably connected to the middle of the top wall of the mounting cover 6. The lower end of the output rod 57 is provided with a central wheel 58. The front side of the lower end of the central wheel 58 is provided with an adjusting rod 59. The lower end of the adjusting rod 59 is located inside the relief groove. It can preheat or cool the silicon carbide nozzle that is resistant to rapid heating and cooling through the medium. The medium is evenly distributed in the cavity 4 to avoid local overheating or overcooling, reduce the temperature gradient, improve the overall heat exchange efficiency, reduce costs, and make inspection and repair relatively simple. It also reduces thermal stress, prevents material fatigue, and can better withstand rapid heating and cooling conditions.

[0024] It also includes a control switch 2, which is located outside the mounting tube 1. The input terminal of the control switch 2 is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0025] Among them: a motor 8 is installed in the middle of the upper end of the mounting cover 6. The lower end of the output shaft of the motor 8 is fixedly connected to the upper end of the output rod 57. The input end of the motor 8 is electrically connected to the output end of the control switch 2. The motor 8 starts to run through the control switch 2. The output shaft of the motor 8 drives the central wheel 58 to rotate through the output rod 57.

[0026] Among them, a sealing rubber ring 7 is provided in the installation groove opened on the upper side of the left wall of the cavity 4. The crossbar 53 is slidably connected to the inner arc surface of the sealing rubber ring 7. The sealing rubber ring 7 plays a sealing role and prevents the medium from flowing into the interior of the installation cover 6.

[0027] The working principle of the silicon carbide burner resistant to rapid heating and cooling provided by this utility model is as follows: Before use, connect the installation pipe 1 to the fuel pipeline, then open the water inlet valve and the drain valve. Hot water enters the cavity 4 through the water inlet pipe 51 to preheat the nozzle 3. After use, the hot water is discharged through the drain pipe 52. After preheating, close the water inlet valve and the drain valve. When using the silicon carbide burner resistant to rapid heating and cooling, the mixed fuel and air are sprayed out through the nozzle 3. The nozzle 3 includes multiple nozzles to ensure uniform combustion and flame distribution. After use, open the water inlet valve and the drain valve. Cooling water enters the cavity 4 through the water inlet pipe 51 to cool the nozzle 3. During the preheating and cooling process, the temperature is controlled by the switch 2. The motor 8 starts running, and its output shaft drives the central wheel 58 to rotate via the output rod 57. The central wheel 58 then drives the adjusting rod 59 to rotate around its axis. Since the axes of the adjusting rod 59 and the central wheel 58 do not coincide, the adjusting rod 59 will have lateral and vertical displacements during its circular motion. This causes the adjusting rod 59 to slide within the clearance groove and rotate relative to it. As the central wheel 58 rotates, the adjusting rod 59 drives the crossbar 53 to reciprocate laterally via the connecting plate 56. The crossbar 53 then drives the push plate 54 to reciprocate laterally. The push plate 54 mixes the hot water or cooling water, ensuring that the hot water or cooling water is evenly distributed within the cavity 4, avoiding local overheating or overcooling, and improving the overall heat exchange efficiency.

[0028] It is worth noting that the motor 87 disclosed in the above embodiments can be GA12-N20, and the control switch 2 is provided with a control button corresponding to the motor 87 for controlling its switching.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A silicon carbide burner resistant to rapid cooling and heating, comprising an installation tube (1), a nozzle (3) disposed at the right end of the installation tube (1), a cavity (4) disposed inside the nozzle (3), and an installation cover (6) disposed on the upper side of the left end of the installation tube (1), characterized in that: It also includes a heat exchange mechanism (5); Heat exchange mechanism (5): It includes a crossbar (53) and a push plate (54). The push plate (54) is slidably connected to the inside of the cavity (4). The right end of the push plate (54) is provided with evenly distributed water holes. The upper side of the left wall of the cavity (4) is provided with a crossbar (53). The right end of the crossbar (53) is fixedly connected to the left end of the push plate (54).

2. A SiC spout according to claim 1, characterized in that: It also includes a control switch (2), which is located outside the mounting tube (1), and the input end of the control switch (2) is electrically connected to an external power supply.

3. A SiC spout according to claim 1, characterized in that: The heat exchange mechanism (5) also includes an inlet pipe (51) and a drain pipe (52). The inlet pipe (51) is located in the inlet port on the left side of the upper end of the nozzle (3). An inlet valve is connected in series in the middle of the inlet pipe (51). The drain pipe (52) is located in the drain port on the left side of the lower end of the nozzle (3). A drain valve is connected in series in the middle of the drain pipe (52). Both the inlet pipe (51) and the drain pipe (52) are connected to the cavity (4).

4. A SiC spout according to claim 2, characterized in that: The heat exchange mechanism (5) further includes a fixing rod (55) and a connecting plate (56). The fixing rod (55) is respectively disposed on the front and rear sides of the left wall of the mounting cover (6). The fixing rod (55) is slidably connected to the sliding hole corresponding to the left end of the connecting plate (56). The right end of the connecting plate (56) is fixedly connected to the left end of the crossbar (53). The upper end of the connecting plate (56) is provided with an avoidance groove.

5. A carbon silicon carbide spout according to claim 4, characterized in that: The heat exchange mechanism (5) also includes an output rod (57), a central wheel (58), and an adjusting rod (59). The output rod (57) is rotatably connected to the middle of the top wall of the mounting cover (6). The lower end of the output rod (57) is provided with a central wheel (58), and the front side of the lower end of the central wheel (58) is provided with an adjusting rod (59). The lower end of the adjusting rod (59) is located inside the clearance groove.

6. A carbon silicon carbide spout according to claim 5, characterized in that: A motor (8) is provided in the middle of the upper end of the mounting cover (6). The lower end of the output shaft of the motor (8) is fixedly connected to the upper end of the output rod (57). The input end of the motor (8) is electrically connected to the output end of the control switch (2).

7. A silicon carbide burner nozzle resistant to rapid cooling and heating according to claim 1, characterized in that: A sealing rubber ring (7) is provided in the mounting groove opened on the upper side of the left wall of the cavity (4), and the crossbar (53) is slidably connected to the inner arc surface of the sealing rubber ring (7).

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