Nozzle structure

Abstract

The utility model provides a nozzle structure which comprises a distribution plate, a ceramic wear-resisting pipe and a pressing ring, the distribution plate is provided with an opening, the ceramic wear-resisting pipe is arranged on one side of the opening, a pipe opening of the ceramic wear-resisting pipe is arranged right opposite to the opening, the pressing ring is connected with the ceramic wear-resisting pipe in a clamped mode and fixedly connected with the distribution plate, and the ceramic wear-resisting pipe is fixedly connected with the pressing ring. Refractory mortar is arranged between the compression ring and the ceramic wear-resistant pipe; according to the nozzle structure, deformation force can be effectively prevented from directly acting on the ceramic wear-resisting pipe when the distribution plate is in a deformation state, the situations of deformation, fragmentation and the like of the ceramic wear-resisting pipe can be avoided, the ceramic wear-resisting pipe can maintain good wear-resisting performance, and normal operation of the nozzle structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to a nozzle structure. Background Art

[0002] In the chemical industry, such as in catalytic cracking systems, distributors are often used to spray or atomize fluid media. Existing distributors often rigidly connect ceramic tubes at the nozzle openings of the distribution plate to avoid wear of the nozzle structure caused by scouring of the fluid medium on the nozzle structure.

[0003] However, in actual production conditions, due to the high temperature environment and the pressure difference between the upper and lower parts of the distribution plate, the distribution plate will often bulge and deform due to heat and pressure, which can easily cause the ceramic tube to deform and break. The broken ceramic tube will be difficult to maintain good wear resistance, which will cause the nozzle structure to wear over time, causing the distributor nozzle to fail and unable to perform normal spraying or atomization work. Utility Model Content

[0004] In view of this, the utility model aims to propose a nozzle structure to solve the problem in the prior art that the ceramic tube is deformed and broken due to the deformation of the distribution plate, and the distributor nozzle fails.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A nozzle structure includes a distribution plate, a ceramic wear-resistant tube, and a pressure ring. The distribution plate is provided with an opening, the ceramic wear-resistant tube is arranged on one side of the opening, and the pipe mouth of the ceramic wear-resistant tube is arranged opposite to the opening. The pressure ring is clamped with the ceramic wear-resistant tube and fixedly connected to the distribution plate, and refractory clay is arranged between the pressure ring and the ceramic wear-resistant tube.

[0007] Furthermore, the ceramic wear-resistant tube comprises a tube body, a tube opening is arranged in the tube body, and a shoulder is arranged at one end of the tube body close to the distribution plate.

[0008] Furthermore, the pressure ring includes a connecting plate and a pressing plate, one end of the connecting plate is connected to the distribution plate, and the other end is connected to the pressing plate, and the pressing plate extends toward the ceramic wear-resistant tube.

[0009] Furthermore, the annular shoulder is arranged below the pressure plate, and refractory mortar is arranged between the side of the annular shoulder away from the pipe body and the connecting plate.

[0010] Furthermore, the connecting plate is welded to the distribution plate.

[0011] Furthermore, a weld is provided between the distribution plate and the side of the connecting plate away from the ceramic wear-resistant tube.

[0012] Furthermore, the distribution plate is provided with a nozzle area, and the ceramic wear-resistant tube and the pressure ring are both located in the nozzle area; in the nozzle area, a wear-resistant lining is provided in the outer space of the ceramic wear-resistant tube and the pressure ring.

[0013] Furthermore, the wear-resistant lining is arranged at a height equal to that of the ceramic wear-resistant pipe.

[0014] Furthermore, the distribution plate is provided with a baffle at the outer edge of the nozzle area.

[0015] Furthermore, the distribution plate is provided with anchoring nails in the nozzle area.

[0016] Compared with the prior art, the nozzle structure described in the utility model has the following advantages:

[0017] The nozzle structure described in the utility model clamps the ceramic wear-resistant tube with a pressure ring and limits it at the opening of the distribution plate, so that there is a certain buffer space between the ceramic wear-resistant tube, the distribution plate and the pressure ring, which can effectively prevent the distribution plate from directly applying deformation force to the ceramic wear-resistant tube when in a deformed state, and is beneficial to preventing the ceramic wear-resistant tube from deforming, breaking, etc., so that the ceramic wear-resistant tube can maintain good wear resistance and ensure the normal operation of the nozzle structure.

[0018] At the same time, refractory mortar is arranged between the pressure ring and the ceramic wear-resistant tube, which can provide sealing effect between the distribution plate, the ceramic wear-resistant tube and the pressure ring on the one hand, and on the other hand, the refractory mortar has a certain deformation ability and can effectively absorb the deformation of the distribution plate at the ceramic wear-resistant tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic structural diagram of a nozzle structure according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the ceramic wear-resistant tube described in an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Distribution plate; 11. Opening; 2. Ceramic wear-resistant pipe; 21. Pipe body; 22. Pipe mouth; 23. Shoulder; 3. Pressure ring; 31. Connecting plate; 32. Pressure plate; 4. Refractory cement; 5. Baffle; 6. Wear-resistant lining; 7. Anchor nails; 8. Weld. DETAILED DESCRIPTION

[0024] The following will use the terms commonly used by those skilled in the art to convey the essence of their work to other technical personnel in the art to describe the utility model concepts of the present disclosure. However, these utility model concepts can be embodied in many different forms and should not be considered as limited to the embodiments described herein.

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Figure 1 The coordinates of are used as the reference.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] In the prior art, the distributor often rigidly connects the ceramic tube at the nozzle opening of the distribution plate to avoid wear of the nozzle structure caused by the fluid medium scouring the nozzle structure. However, in actual production conditions, due to the high temperature environment and the pressure difference between the upper and lower parts of the distribution plate, the distribution plate often bulges and deforms due to heat and pressure, which can easily cause the ceramic tube to deform and break. The broken ceramic tube will be difficult to maintain good wear resistance, which will cause the nozzle structure to wear over time, causing the distributor nozzle to fail and unable to perform normal spraying or atomization work.

[0028] In order to solve the problem in the prior art that the ceramic tube is deformed and broken due to the deformation of the distribution plate, and the distributor nozzle fails, this embodiment proposes a nozzle structure, as shown in the attached Figure 1-2 As shown, the nozzle structure includes a distribution plate 1, a ceramic wear-resistant tube 2, and a pressure ring 3. The distribution plate 1 is provided with an opening 11. The ceramic wear-resistant tube 2 is arranged on one side of the opening 11, and the pipe mouth 22 of the ceramic wear-resistant tube 2 is arranged opposite to the opening 11. The pressure ring 3 is clamped with the ceramic wear-resistant tube 2 and fixedly connected to the distribution plate 1. Refractory clay 4 is arranged between the pressure ring 3 and the ceramic wear-resistant tube 2.

[0029] In the present application, the ceramic wear-resistant tube 2 is not directly fixedly connected to the distribution plate 1, but is clamped by the pressure ring 3 and limited at the opening 11 of the distribution plate 1, so that there can be a certain buffer space between the ceramic wear-resistant tube 2 and the distribution plate 1 and the pressure ring 3, which can effectively prevent the distribution plate 1 from directly applying deformation force to the ceramic wear-resistant tube 2 in a deformed state, which is conducive to preventing the ceramic wear-resistant tube 2 from deforming, breaking, etc., so that the ceramic wear-resistant tube 2 can maintain good wear resistance and ensure the normal operation of the nozzle structure. A refractory cement 4 is arranged between the pressure ring 3 and the ceramic wear-resistant tube 2. On the one hand, it can provide a sealing effect between the distribution plate 1, the ceramic wear-resistant tube 2 and the pressure ring 3. On the other hand, the refractory cement 4 has a certain deformation ability and can effectively absorb the deformation of the distribution plate 1 at the ceramic wear-resistant tube 2. At the same time, the nozzle structure of the present application is simple to arrange, easy to produce, and strong and durable.

[0030] The pressure ring 3 includes a connecting plate 31 and a pressing plate 32. One end of the connecting plate 31 is connected to the distribution plate 1, and the other end is connected to the pressing plate 32. The pressing plate 32 extends toward the ceramic wear-resistant tube 2. A limiting space is formed by the connecting plate 31 and the pressing plate 32, and the ceramic wear-resistant tube 2 is limited by the pressing plate 32.

[0031] Preferably, the connecting plate 31 is welded to the distribution plate 1. Specifically, a weld 8 is arranged between the side of the connecting plate 31 away from the ceramic wear-resistant tube 2 and the distribution plate 1, so that in the actual production process, the ceramic wear-resistant tube 2 is first aligned with the opening 11, and then a pressure ring 3 is arranged on the outer shell of the ceramic wear-resistant tube 2, and then the pressure ring 3 is welded to the distribution plate 1, so that the setting of the corresponding structure can be achieved.

[0032] The ceramic wear-resistant pipe 2 includes a pipe body 21, a pipe mouth 22 is arranged in the pipe body 21, and a shoulder 23 is arranged at the lower end of the pipe body 21 (that is, the end of the pipe body 21 close to the distribution plate 1); the shoulder 23 is arranged below the pressure plate 32, the pressure plate 32 can abut against the shoulder 23, and there can also be a certain gap between the pressure plate 32 and the shoulder 23, and a refractory mortar 4 is arranged between the side of the shoulder 23 away from the pipe body 21 and the connecting plate 31.

[0033] In order to further improve the stability of the ceramic wear-resistant tube 2 and the wear resistance of the nozzle structure, the distribution plate 1 is provided with a nozzle area, and a plurality of openings 11 and corresponding ceramic wear-resistant tubes 2 and pressure rings 3 are provided in the nozzle area, and the ceramic wear-resistant tubes 2 and pressure rings 3 are both located in the nozzle area; in the nozzle area, a wear-resistant lining 6 is provided in the outer space of the ceramic wear-resistant tube 2 and the pressure ring 3, so that on the one hand, the wear-resistant lining 6 covers the ceramic wear-resistant tube 2 and the pressure ring 3, so that the stability of the ceramic wear-resistant tube 2 at the opening 11 can be effectively improved, and on the other hand, since the wear-resistant lining 6 has good wear resistance, it can provide good wear protection for the nozzle area, which is beneficial to improve the service life of the distributor.

[0034] Correspondingly, if each opening 11 and the corresponding ceramic wear-resistant tube 2 and pressure ring 3 are regarded as a group of nozzle structures, the ceramic wear-resistant tube 2 and pressure ring 3 in each group of assembled nozzle structures are covered by the wear-resistant lining 6. Preferably, the height of the wear-resistant lining 6 is similar to or equal to the height of the ceramic wear-resistant tube 2, so that the pressure ring 3 is completely immersed in the wear-resistant lining 6. At this time, only the wear-resistant lining 6 and the upper port of the ceramic wear-resistant tube 2 are exposed outside the nozzle area, and the wear resistance of the nozzle area is ensured on the basis of ensuring the normal spraying or atomization of the fluid through the nozzle structure.

[0035] The distribution plate 1 is provided with a baffle 5 at the outer edge of the nozzle area, which is used to limit the position when laying the wear-resistant lining 6, so as to facilitate actual production operations. The distribution plate 1 is provided with anchoring nails 7 in the nozzle area, and the anchoring nails 7 are also completely immersed in the wear-resistant lining 6 to improve the connection reliability of the wear-resistant lining 6 laid in the nozzle area.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nozzle structure, characterized in that: The nozzle structure comprises a distribution plate (1), a ceramic wear-resistant tube (2), and a pressure ring (3); the distribution plate (1) is provided with an opening (11); the ceramic wear-resistant tube (2) is arranged on one side of the opening (11), and the tube mouth (22) of the ceramic wear-resistant tube (2) is arranged opposite to the opening (11); the pressure ring (3) is clamped with the ceramic wear-resistant tube (2) and fixedly connected to the distribution plate (1); and refractory clay (4) is arranged between the pressure ring (3) and the ceramic wear-resistant tube (2).

2. A nozzle structure according to claim 1, characterized in that: The ceramic wear-resistant pipe (2) comprises a pipe body (21), a pipe opening (22) is arranged in the pipe body (21), and a shoulder (23) is arranged at one end of the pipe body (21) close to the distribution plate (1).

3. A nozzle structure according to claim 2, characterized in that: The pressure ring (3) comprises a connecting plate (31) and a pressing plate (32); one end of the connecting plate (31) is connected to the distribution plate (1), and the other end is connected to the pressing plate (32); the pressing plate (32) extends toward the ceramic wear-resistant tube (2).

4. A nozzle structure according to claim 3, characterized in that: The annular shoulder (23) is arranged below the pressing plate (32), and refractory mortar (4) is arranged between the side of the annular shoulder (23) away from the pipe body (21) and the connecting plate (31).

5. A nozzle structure according to claim 3, characterized in that: The connecting plate (31) is welded to the distribution plate (1).

6. A nozzle structure according to claim 5, characterized in that: A welding seam (8) is provided between the side of the connecting plate (31) away from the ceramic wear-resistant tube (2) and the distribution plate (1).

7. A nozzle structure according to claim 1, characterized in that: The distribution plate (1) is provided with a nozzle area, and the ceramic wear-resistant tube (2) and the pressure ring (3) are both located in the nozzle area; in the nozzle area, a wear-resistant lining (6) is provided in the outer space of the ceramic wear-resistant tube (2) and the pressure ring (3).

8. A nozzle structure according to claim 7, characterized in that: The installation height of the wear-resistant lining (6) is equal to the height of the ceramic wear-resistant pipe (2).

9. A nozzle structure according to claim 7, characterized in that: The distribution plate (1) is provided with a baffle (5) at the outer edge of the nozzle area.

10. A nozzle structure according to claim 7, characterized in that: The distribution plate (1) is provided with anchoring nails (7) in the nozzle area.

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