A high temperature resistant nozzle spoiler device

Abstract

The utility model relates to the nozzle body device field discloses a high temperature resistant nozzle spoiler device, including nozzle body and the flange of installation nozzle body, and nozzle body passes through the flange vertically downward, the nozzle body sleeve joint has the outer clamping sleeve, and the outer clamping sleeve is passed into cooling medium, the nozzle head of nozzle body is equipped with the spoiler hole, and the spoiler hole can change the flow state of fluid. The utility model discloses the outer clamping sleeve of passing into cooling medium is set up to the nozzle body cooling, and the spray hole of nozzle head is set up as the spoiler hole, can increase fluid agitation, has the beneficial effect of strengthening to the nozzle body cooling, to the nozzle head heat dissipation, the spray hole is not easy to block, the spray of spraying out mixes evenly, improves the service life of nozzle body.

Description

Technical Field

[0001] This utility model relates to the field of nozzle body devices, and in particular to a high-temperature resistant nozzle turbulence device. Background Technology

[0002] In the chemical and energy industries, the nozzle body of a high-temperature feed nozzle is a widely used component. Its function is to inject the high-temperature fluid formed by mixing materials and combustion aids into the reaction furnace at a specific flow rate and atomized state to achieve combustion. This type of nozzle body is easily damaged, and its service life is usually 3 to 6 months. The high-temperature fluid is sprayed directly from the nozzle head of the nozzle body, and the nozzle head is directly subjected to the high temperature impact of the fluid, which is easily damaged. Therefore, the main manifestation of nozzle body damage is the burning of the nozzle head, which is basically caused by poor cooling and heat dissipation. In addition, the nozzle head often adopts a small-diameter round hole design, which is prone to clogging problems. Some nozzle heads also have the problem of uneven spray mixing. Utility Model Content

[0003] To overcome the problems of poor cooling and heat dissipation of the nozzle body, easy damage to the nozzle body, easy clogging of the nozzle orifice, and uneven spray mixing in the above-mentioned background technology, this utility model provides a high-temperature resistant nozzle turbulence device. By setting an outer jacket through which a cooling medium is introduced to cool the nozzle body, and setting the nozzle orifice of the nozzle head as a turbulence hole, the fluid agitation can be increased. This has the beneficial effects of strengthening the cooling of the nozzle body, heat dissipation of the nozzle head, preventing the nozzle orifice from clogging, ensuring uniform spray mixing, and improving the service life of the nozzle body.

[0004] The technical solution of this utility model is as follows: A high-temperature resistant nozzle flow turbulence device includes a nozzle body and a flange for mounting the nozzle body. The nozzle body extends vertically downward through the flange. The nozzle body is fitted with an outer jacket, through which a cooling medium is introduced. The nozzle head of the nozzle body is provided with a flow turbulence hole, which can change the flow state of the fluid.

[0005] Compared with existing technologies, the beneficial effects of this technical solution are as follows: By encasing the nozzle body in an outer jacket filled with a cooling medium, the cooling medium directly contacts the nozzle body, allowing heat exchange to remove heat from the nozzle body surface and maintain its temperature within a safe range. Furthermore, by incorporating turbulence holes within the nozzle head, fluid agitation is increased, disrupting fluid flow lines. As the fluid passes through these holes, its laminar flow state is broken, the thermal boundary layer is disrupted, heat exchange efficiency is improved, heat transfer is accelerated, and adiabatic expansion is avoided, directly reducing the fluid's own temperature. This allows the nozzle head to dissipate heat more quickly and also enhances the mixing efficiency of the fluid mixture, resulting in a more uniform spray. This achieves the goals of enhanced nozzle cooling and more uniform spray mixing. The simultaneous use of the outer jacket and turbulence holes solves the problems of poor nozzle body cooling and heat dissipation, which reduce nozzle body lifespan and cause uneven spray mixing in the prior art. This technical solution effectively reduces the frequency of nozzle body maintenance and the use of backup equipment, significantly reducing overall plant investment and facilitating stable, long-term, and full-load operation.

[0006] Preferably, the outer jacket is connected to the inlet pipe and the outlet pipe respectively. The inlet pipe extends through the flange into the outer jacket and injects cooling medium into it. The outlet pipe extends through the flange into the outer jacket and leads out the cooling medium inside it.

[0007] Its beneficial effects are as follows: This structural design can form a closed flow circuit in the outer jacket, and the cooling medium in the outer jacket flows continuously, further increasing the cooling effect of the outer jacket on the nozzle body.

[0008] More preferably, the inlet pipe and the outlet pipe are located on both sides of the nozzle body; the outlet end of the inlet pipe extends into the bottom of the outer jacket, while the inlet end of the outlet pipe is located at the top of the outer jacket.

[0009] Its beneficial effects are as follows: the cooling medium entering the outer jacket from the water inlet pipe cools the nozzle body and then flows out from the water outlet pipe, making full use of the cooling medium to cool the nozzle; after the cooling medium fully exerts its cooling effect along the nozzle body from bottom to top, it flows out from the outlet pipe at the top, improving heat exchange efficiency and further enhancing the cooling effect.

[0010] More preferably, the nozzle body passes through the center hole of the flange and is welded to it; the top surface of the outer jacket is welded to the bottom surface of the flange, and the top circumferentially is fixedly connected to the bottom surface of the flange by a convex fillet weld.

[0011] Its beneficial effects are: ensuring the stability of the connection between the nozzle body and the flange; the top surface of the side wall of the outer jacket is welded to the bottom surface of the flange, ensuring the stability of the connection between the outer jacket and the flange and the sealing of the top of the outer jacket; the convex fillet weld can make the connection between the outer jacket and the flange more secure.

[0012] More preferably, the bottom of the outer jacket is a frustoconical structure, and its bottom port is welded and fixed to the bottom circumferential direction of the nozzle body.

[0013] Its advantages are: this structure reduces the bottom of the outer jacket, making it more convenient to use; the bottom port of the outer jacket is welded and fixed to the bottom circumference of the nozzle body, which can ensure the sealing of the bottom of the outer jacket.

[0014] Preferably, the ejection portion at the bottom of the nozzle has a conical structure, and the turbulence holes are evenly arranged circumferentially along the ejection portion.

[0015] Its beneficial effects are as follows: When spraying at high speed, the tip of the nozzle faces the direction of spraying, which can split the fluid into multiple jets, expand the spray coverage area, and compared with cylindrical or spherical structures, the nozzle of the conical structure can produce a squeezing effect on the fluid, making it easier to generate high-intensity vortices inside, and causing stronger disturbance to the fluid. It can generate stronger turbulence at the same flow rate, thereby improving the heat dissipation efficiency of the entire spray area and amplifying the heat exchange effect by changing the fluid state. In addition, it can further enhance the mixing efficiency of the mixture in the fluid, and the spray mixing is more uniform.

[0016] More preferably, the ejection section is formed by a number of partition plates, with gaps between adjacent partition plates, which are the turbulence holes; the turbulence holes are rectangular holes; and the partition plates are fan-shaped annular structures.

[0017] Its beneficial effects are as follows: the baffle plate forms a turbulence hole, eliminating the need for the hole-opening process and making the processing flow simpler; the rectangular structure design can increase the flow area when the fluid is ejected, and can better avoid the problem of clogging of the nozzle; the fan-shaped structure of the baffle plate makes it easier to form a rectangular turbulence hole.

[0018] In a further preferred embodiment, all the partition plates are arranged around the central column, with the converging end of the partition plates fixed to the bottom of the central column, and the dispersing end fixedly connected to the inner wall of the nozzle body through a connecting part.

[0019] Its beneficial effects are as follows: the central column is used to connect the converging end of the partition plate, while the connecting part is used to fix the ejection part and the nozzle together.

[0020] More preferably, the connecting part is an annular inclined structure, and the central column is a solid cone shape.

[0021] Its beneficial effects are as follows: by setting the connecting part as a sloping structure, it is easier for all fluids to flow into the connecting part; by setting the central column of the cone structure, the pressure on the fluid in the ejection part can be further improved, making it easier to generate high-intensity vortices, strengthening the disturbance of the fluid, and improving the heat dissipation efficiency of the ejection area.

[0022] More preferably, the width of the turbulence hole is 5 mm, and the length is 0.6 to 0.9 times the diameter of the nozzle body; the surface of the nozzle is coated with a high-temperature anti-oxidation coating.

[0023] Its beneficial effects are: within this width and length range, the fluid is less likely to get clogged in the turbulence holes, and the spray volume can be increased, improving the spray efficiency; the high-temperature anti-oxidation coating can protect the nozzle surface and improve its service life. Attached Figure Description

[0024] This utility model will be described with reference to the accompanying drawings, wherein: Figure 1 This is a cross-sectional view of the entire utility model; Figure 2 This is a front view of the entire utility model; Figure 3 This is a top view of the nozzle of this utility model.

[0025] Reference numerals: Nozzle body 1, flange 2, center hole 21, convex fillet weld 22, nozzle 3, connecting part 31, spraying part 32, partition plate 33, center column 34, outer sleeve 4, closed cavity 41, turbulence hole 42, water inlet pipe 43, water outlet pipe 44. Detailed Implementation To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Example 1: As Figures 1 to 3 The high-temperature resistant nozzle turbulence device shown includes a nozzle body 1 and a flange 2 for mounting the nozzle body 1. The nozzle body 1 passes vertically downward through the center hole 21 of the flange 2 and is fixedly connected thereto. A nozzle head 3 is fixed at the bottom of the nozzle body 1. High-temperature fluid enters from the inlet at the top of the nozzle body 1 and is ejected from the nozzle head 3 at the bottom.

[0027] The nozzle body 1 is fitted with an outer jacket 4, which circumferentially encloses the nozzle body 1 within the outer jacket 4. The sidewalls of the outer jacket 4 surround the nozzle body 1 and, together with the circumference of the nozzle body 1 and the bottom surface of the flange 2, form a closed cavity 41. Cooling medium is introduced into the outer jacket 4, i.e., into the closed cavity 41. The cooling medium directly contacts the nozzle body 1 to cool it down and lower the temperature of the nozzle head 3. The nozzle head 3 of the nozzle body 1 is provided with a turbulence hole 42, which can change the flow state of the fluid and increase the agitation of the fluid.

[0028] Therefore, by encasing the nozzle body 1 in an outer jacket 4 containing a cooling medium, the cooling medium directly contacts the nozzle body 1, allowing heat exchange to remove heat from the surface of the nozzle body 1 and maintain its temperature within a safe range. Furthermore, by incorporating a turbulence hole 42 within the nozzle head 3, the agitation of the fluid is increased, disrupting the fluid flow lines. As the fluid passes through the turbulence hole 42, its laminar flow state is broken, the thermal boundary layer is disrupted, heat exchange efficiency is improved, heat transfer is accelerated, and adiabatic expansion is avoided, directly reducing the fluid's own temperature. This allows the nozzle head 3 to dissipate heat more quickly and also enhances the mixing efficiency of the fluid mixture, resulting in a more uniform spray mixture. This achieves the goal of enhancing the cooling effect of the nozzle head 3 and ensuring uniform spray mixing. The simultaneous use of the outer jacket 4 and the turbulence hole 42 solves the problems of poor cooling and heat dissipation of the nozzle body 1 in the prior art, which leads to reduced service life and uneven spray mixing. This technical solution effectively reduces the number of times the nozzle body 1 needs maintenance, while also reducing the frequency of standby equipment use, significantly reducing the overall investment of the plant and facilitating stable, long-term, and full-load operation.

[0029] Example 2: Based on Example 1, an optimized design is made for the outer jacket 4. The outer jacket 4 is connected to both the inlet pipe 43 and the outlet pipe 44. The inlet pipe 43 extends through the flange 2 into the outer jacket 4 and injects cooling medium into it. The outlet pipe 44 extends through the flange 2 into the outer jacket 4 and leads out the cooling medium after it has completed its cooling process. The inlet pipe 43 is connected to the source of the cooling medium, and the outlet pipe 44 is connected to a pump body. The pump body can be a miniature centrifugal pump, which can slowly extract the cooling medium from the outer jacket 4. This structural design forms a closed flow loop within the outer jacket 4, allowing the cooling medium to flow continuously and further increasing the cooling effect of the outer jacket 4 on the nozzle body 1.

[0030] Preferably, the inlet pipe 43 and the outlet pipe 44 are located on both sides of the nozzle body 1, so that the cooling medium entering the outer jacket 4 from the inlet pipe 43 cools the nozzle body 1 and then flows out from the outlet pipe 44, making full use of the cooling medium to cool the nozzle. The outlet end of the inlet pipe 43 extends into the bottom of the outer jacket 4, while the inlet end of the outlet pipe 44 is located at the top of the outer jacket 4. The cooling medium fully exerts its cooling effect along the nozzle body 1 from bottom to top and then flows out from the outlet pipe at the top, improving heat exchange efficiency and further enhancing the cooling effect.

[0031] Example 3: Based on the above examples, a preferred design is implemented. The nozzle body 1 passes through the central hole 21 of the flange 2 and is welded to it, ensuring the stability of the connection between the nozzle body 1 and the flange 2. The top surface of the side wall of the outer jacket 4 is welded to the bottom surface of the flange 2, ensuring the stability of the connection between the outer jacket 4 and the flange 2, as well as the sealing of the top of the outer jacket 4. The top circumferential side wall of the outer jacket 4 is also fixedly connected to the bottom surface of the flange 2 by a convex fillet weld 22, making the connection between the outer jacket 4 and the flange 2 even more secure.

[0032] Preferably, the bottom of the outer jacket 4 has a frustum-shaped structure, with the area of ​​its upper bottom surface being larger than that of its lower bottom surface. This structure reduces the size of the bottom of the outer jacket 4, making it more convenient to use. The bottom port of the outer jacket 4 converges towards the center and is welded and fixed to the bottom circumference of the nozzle body 1 to ensure the sealing of the inner bottom end of the outer jacket 4.

[0033] Example 4: Based on Example 1, the nozzle 3 is optimized. The nozzle 3 includes an upper connecting part 31 and a lower ejection part 32. The ejection part 32 has a conical structure with its tip facing the outlet of the nozzle body 1. The turbulence holes 42 are evenly arranged around the ejection part 32. During high-speed injection, its tip faces the injection direction, which can split the fluid into multiple jets and expand the injection coverage. Compared with cylindrical or spherical structures, the conical ejection part 32 can produce a squeezing effect on the fluid. The conical structure is more likely to generate high-intensity vortices inside, which has a stronger disturbance to the fluid and can generate stronger turbulence at the same flow rate, thereby improving the heat dissipation efficiency of the entire injection area and amplifying the heat exchange effect by changing the fluid state. In addition, it can further enhance the mixing efficiency of the mixture in the fluid and make the spray mixing more uniform.

[0034] Specifically, the ejector section 32 is surrounded by several partition plates 33. The bottom ends of the partition plates 33 converge towards the center to form a converging end. A gap is left between adjacent partition plates 33, which serves as a turbulence hole 42. The turbulence hole 42 is formed by the partition plates 33, eliminating the need for the hole-making process and simplifying the manufacturing process. The turbulence hole 42 is a rectangular hole. Compared to a small circular hole, the rectangular structure design increases the flow area of ​​the fluid during ejection, better preventing the nozzle from becoming clogged. The partition plates 33 have a fan-shaped annular structure, which makes it easier to form rectangular turbulence holes 42.

[0035] Preferably, all the partition plates 33 are arranged around the central column 34, that is, the central column 34 is located at the center of the converging ends of all the partition plates 33. The converging ends of the partition plates 33 are fixed to the bottom of the central column 34 by welding, and their dispersing ends are fixedly connected to the inner wall of the nozzle body 1 by the connecting part 31. That is, the dispersing ends of the partition plates 33 are fixedly connected to the bottom of the connecting part 31 by welding, and the top circumferential part of the connecting part 31 is fixedly connected to the inner wall of the nozzle body 1 by welding. The central column 34 is provided to connect the converging ends of the partition plates 33, and the connecting part 31 is provided to fix the ejection part 32 to the nozzle.

[0036] The connecting portion 31 is an annular inclined structure. Fluid reaching the bottom of the nozzle flows through the connecting portion 31 and merges into the ejection portion 32. The inclined structure of the connecting portion 31 facilitates the flow of all fluid into it. Furthermore, the central column 34 is a solid cone shape. This cone-shaped structure further increases the pressure on the fluid within the ejection portion 32, making it easier to generate high-intensity vortices, further enhancing the disturbance to the fluid, and improving the heat dissipation efficiency of the spray area.

[0037] The width of the turbulence orifice 42 is 5mm. This width makes it less likely for fluid to clog within the orifice. The length of the turbulence orifice 42 is 0.6 to 0.9 times the diameter of the nozzle body 1. The length of the turbulence orifice 42 can be adjusted according to actual conditions. The smaller the cone angle of the ejection section 32, the larger the length of the turbulence orifice 42, and vice versa. Within this length range, fluid is less likely to clog within the turbulence orifice 42, and the ejection volume can be increased, improving ejection efficiency. The surface of the nozzle 3 is coated with a high-temperature anti-oxidation coating. This high-temperature anti-oxidation coating can be a ceramic coating, a metal composite coating, etc. This high-temperature anti-oxidation coating can protect the surface of the nozzle 3 and improve its service life.

[0038] Furthermore, the above embodiments merely illustrate specific implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the technical solution of this application, and these all fall within the scope of protection of this application.

Claims

1. A high-temperature resistant nozzle turbulence device, comprising a nozzle body (1) and a flange (2) for mounting the nozzle body (1), wherein the nozzle body (1) passes vertically downward through the flange (2), characterized in that: The nozzle body (1) is fitted with an outer jacket (4), and a cooling medium is introduced into the outer jacket (4); the nozzle head (3) of the nozzle body (1) is provided with a turbulence hole (42), which can change the flow state of the fluid.

2. The high-temperature resistant nozzle turbulence device according to claim 1, characterized in that: The outer jacket (4) is connected to the inlet pipe (43) and the outlet pipe (44) respectively. The inlet pipe (43) passes through the flange (2) and extends into the outer jacket (4) to inject cooling medium into it. The outlet pipe (44) passes through the flange (2) and extends into the outer jacket (4) to lead out the cooling medium inside it.

3. The high-temperature resistant nozzle turbulence device according to claim 2, characterized in that: The inlet pipe (43) and outlet pipe (44) are located on both sides of the nozzle body (1); the outlet end of the inlet pipe (43) extends into the bottom of the outer jacket (4), while the inlet end of the outlet pipe (44) is located at the top of the outer jacket (4).

4. A high-temperature resistant nozzle turbulence device according to claim 1 or claim 3, characterized in that: The nozzle body (1) passes through the center hole (21) of the flange (2) and is welded to it; the top surface of the outer jacket (4) is welded to the bottom surface of the flange (2), and the top circumferential part is fixedly connected to the bottom surface of the flange (2) by a convex fillet weld (22).

5. The high-temperature resistant nozzle turbulence device according to claim 4, characterized in that: The bottom of the outer jacket (4) is a frustoconical structure, and its bottom port is welded and fixed to the bottom circumferential direction of the nozzle body (1).

6. The high-temperature resistant nozzle turbulence device according to claim 1, characterized in that: The nozzle (3) has a cone-shaped ejection section (32) at the bottom, and the turbulence holes (42) are evenly arranged around the ejection section (32).

7. A high-temperature resistant nozzle turbulence device according to claim 6, characterized in that: The ejection section (32) is surrounded by several partition plates (33), with gaps between adjacent partition plates (33), which are the turbulence holes (42); the turbulence holes (42) are rectangular holes; the partition plates (33) are fan-shaped structures.

8. The high-temperature resistant nozzle turbulence device according to claim 7, characterized in that: All the partition pieces (33) are arranged around the central column (34). The converging end of the partition piece (33) is fixed to the bottom of the central column (34), and its dispersing end is fixedly connected to the inner wall of the nozzle body (1) through the connecting part (31).

9. A high-temperature resistant nozzle turbulence device according to claim 8, characterized in that: The connecting part (31) is an annular inclined structure, and the central column (34) is a solid cone shape.

10. A high-temperature resistant nozzle turbulence device according to claim 7, characterized in that: The width of the turbulence hole (42) is 5 mm, and the length is 0.6 to 0.9 times the diameter of the nozzle body (1); the surface of the nozzle (3) is coated with a high-temperature anti-oxidation coating.

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