Corrosion-resistant rotary core combined structure for jet equipment

Abstract

The utility model relates to the technical field of corrosion-resistant rotary cores, and discloses a corrosion-resistant rotary core combined structure for jet equipment, which comprises a jet equipment shell and a nozzle structure, a rotary core structure is arranged in the nozzle structure, and the nozzle structure is arranged in the jet equipment and close to a position between a power medium and an injection medium. The rotating core structure comprises an integrated rotating core support and an X rotating core fixedly arranged in the rotating core support. According to the utility model, the X rotating core adopts a detachable design, the dismounting and mounting processes of parts of the X rotating core are greatly facilitated, in addition, the design allows a user to replace rotating cores with different specifications according to specific requirements, so that diversified use scenes are met, and the X rotating core can be used in a highly corrosive medium environment related to hydrofluoric acid or fluoride. And the rotary core can still ensure long-term and stable operation performance.

Description

Technical Field

[0001] This utility model relates to the field of corrosion-resistant swirl core technology, and in particular to a corrosion-resistant swirl core assembly structure for jet equipment. Background Technology

[0002] Traditional jet spraying equipment typically employs corrosion-resistant materials such as stainless steel, Hastelloy, and titanium, which are tightly bonded to the supporting structural components via welding. When fluid is ejected at high speed through the nozzle, a continuous vacuum zone is created near the outlet. In some applications, although high vacuum requirements are not necessary, it is required to handle large flow rates of fluid. Therefore, a vortex structure is added inside the nozzle to cause the fluid to rotate and compress, ultimately diffusing out of the nozzle outlet at high speed, thereby increasing the equipment's conveying capacity and meeting the needs of large-flow media.

[0003] For handling highly corrosive fluids such as hydrofluoric acid (HF), fluorides, nitric acid, and sulfuric acid, the industry standard is to use Hastelloy or titanium to manufacture nozzles and swivel cores. After assembly, these components are secured with spot welding to prevent loosening. The fins are welded to the seamless tube, then precision-machined, and finally spot-welded to the swivel core. The nozzle is then spot-welded to the fins, as shown below. Figure 6 As shown. However, during use, its corrosiveness gradually increases with changes in medium concentration and temperature. Typically, Hastelloy and titanium materials corrode after 1 to 2 months of use, leading to structural changes and rendering them unusable. Another solution in the industry is to use polytetrafluoroethylene (PTFE) rods to process the nozzle, or to use steel lined with PTFE. This design isolates the steel from the medium, achieving corrosion protection. Although nozzles and cores can be processed using PTFE, its high melting point and low adhesion make the welding process complex. While chemical bonding is possible, the adhesives often fail to meet corrosion resistance requirements, making it impossible to install and fix the core. This necessitates a conventional nozzle design (without an X-shaped core), which limits medium flow and reduces efficiency. Currently, 3D printing technology is an ideal option for manufacturing nozzles and cores, but due to the material properties of PTFE, 3D printing technology is still under research and development. Furthermore, the high melting point and low adhesion of PTFE make the welding process complex, directly affecting the fixing and installation of the nozzle and core. Especially when it is necessary to combine PTFE materials together or use them in combination with other materials (such as metals), the physical properties of PTFE may make traditional welding or bonding methods unsuitable, which increases the difficulty of installation.

[0004] Therefore, those skilled in the art have provided a corrosion-resistant swirl core assembly structure for jet equipment to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a corrosion-resistant swirl core assembly structure for jet equipment. The swirl core is designed as a detachable structure, facilitating the disassembly and installation of its components. Furthermore, it allows for the replacement of swirl cores of different specifications according to design requirements, adapting to various application scenarios with specific flow requirements. Especially in media environments containing hydrofluoric acid (HF) or fluorides, the swirl core can achieve long-term stable operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A corrosion-resistant swirl core assembly structure for a jet device includes a jet device housing and a nozzle structure. The nozzle structure is provided with a swirl core structure inside the jet device. The nozzle structure is located inside the jet device near the position between the power medium and the ejector medium.

[0008] The core structure includes an integrated core support and an internally fixed X-core.

[0009] Furthermore, the inner surface of the integrated swivel core bracket is provided with internal threads, and the outer surface of the integrated swivel core bracket is provided with external threads. At the same time, a fin structure is milled on the outside, and the circumference is divided into multiple flow channels.

[0010] Furthermore, an installation groove is provided at the upper end of the integrated spinneret near the middle position, and a tool retraction groove is provided at the lower end of the interior of the integrated spinneret.

[0011] Furthermore, both the nozzle structure and the swirl core structure are made of polytetrafluoroethylene (PTFE).

[0012] This utility model has the following beneficial effects:

[0013] This invention proposes a corrosion-resistant swirl core assembly structure for jet equipment. The components of this structure are made of polytetrafluoroethylene (PTFE), but other materials can be selected depending on the characteristics of the contact medium. Compared to titanium and Hastelloy, PTFE is lower in cost and lighter in weight. PTFE is also easier to machine. The swirl core features a detachable design, facilitating the assembly and disassembly of its components. Furthermore, different specifications of swirl cores can be replaced later to adjust the design and meet various application scenarios. Especially in media environments containing hydrofluoric acid or fluorides, PTFE can achieve long-term stable use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model installed after the jet equipment;

[0015] Figure 2This is a schematic diagram of the spiral core structure of this utility model;

[0016] Figure 3 This is a top sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the X-shaped core of this utility model;

[0018] Figure 5 This is a cross-sectional schematic diagram of the swivel core structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the existing technology installed behind the jet equipment.

[0020] Legend:

[0021] 1. Jet equipment housing; 2. Swirl core structure; 3. Nozzle structure; 201. X-shaped swirl core; 202. Fin; 203. Retracting groove; 205. Mounting groove; 206. External thread; 207. Internal thread; 208. Swirl core support. 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] Reference Figure 1 The present invention provides an embodiment of a corrosion-resistant swirl core assembly structure for a jet device, comprising a jet device housing 1 and a nozzle structure 3, wherein a swirl core structure 2 is disposed inside the nozzle structure 3, and the nozzle structure 3 is disposed inside the jet device near the position between the power medium and the ejector medium.

[0024] Specifically, in the jetting device, by configuring a nozzle structure 3 and a swirl structure 2 between the driving medium and the ejector medium, the fluid is ejected at high speed after passing through the nozzle, continuously forming a vacuum zone near the outlet. In some applications, the vacuum requirement is not stringent, but the flow rate requirement is high. In this case, a swirl structure 2 is usually added inside the nozzle to induce a rotational effect in the fluid. Subsequently, the fluid is compressed and finally diffuses out of the nozzle outlet in a high-speed rotating form. The swirl structure 2 is designed to adjust the nozzle diffusion angle. This design significantly improves the overall carrying capacity of the device, thereby meeting the needs of high-flow-rate media transportation.

[0025] Reference Figure 2-5The swirl structure 2 includes an integrated swirl support 208 and an internally installed X-shaped swirl 201. The inner surface of the integrated swirl support 208 is provided with an internal thread 207, and the outer surface of the integrated swirl support 208 is provided with an external thread 206. Multiple fins 202 are machined around the circumference of the integrated swirl support 208, which form multiple flow channels after assembly. An installation groove 205 is opened at the upper end of the integrated swirl support 208 near the middle position, and a tool relief groove 203 is opened at the lower end of the interior of the integrated swirl support 208. Both the nozzle structure 3 and the swirl structure 2 are made of polytetrafluoroethylene material and are fixed to each other by threaded connection.

[0026] Specifically, nozzle structure 3 is made of polytetrafluoroethylene (PTFE) and is machined entirely from PTFE rods. It features internal threads, while the swivel core structure 2 is composed of a PTFE swivel core support 208, with internal threads 207 and external threads 206 machined on the inner and outer diameters, respectively. The X-swivel core 201 is threaded throughout, and a flow guide channel is milled after machining. All components of this structure are made of PTFE, but other materials can be selected depending on the characteristics of the contact medium. Compared to titanium and Hastelloy, PTFE is less expensive and lighter. PTFE is also easier to machine. The swivel core features a detachable design, facilitating the assembly and disassembly of its components and allowing for the replacement of different swivel core specifications to adjust the design and meet various application scenarios. For highly corrosive media containing HF or fluorides, the PTFE swivel core can be used for extended periods.

[0027] Working principle: During assembly, since the X-core 201 has threads on its outer surface and the core bracket 208 has internal threads 207 on its inner surface, the X-core 201 and the core bracket 208 can be connected by threads. The bottom of the core bracket 208 has a reserved stop for limiting. After the core bracket 208 and the X-core 201 are assembled, they are threadedly connected to the nozzle structure 3. Tools can be used to insert into the mounting groove 205 on the top of the core bracket 208 and rotate it clockwise for installation.

[0028] During disassembly, insert a tool into the mounting slot 205 on the top of the spinner bracket 208 and rotate it counterclockwise to remove the spinner bracket 208 assembly. Fix the spinner bracket 208 and manually rotate the X spinner 201 counterclockwise to separate the X spinner 201.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 corrosion-resistant swirl core assembly structure for a jetting device, comprising a jetting device housing (1) and a nozzle structure (3), characterized in that: The nozzle structure (3) is provided with a swirl core structure (2) inside. The nozzle structure (3) is located inside the jet device housing (1) near the position between the power medium and the ejector medium. The swirl core structure (2) includes an integrated swirl core bracket (208) and an internally fixed X-swirl core (201). The nozzle structure (3) has an internal thread (207) machined in its inner hole for connection and fixation with the nozzle core structure (2).

2. The corrosion-resistant swirl core assembly structure for jet equipment according to claim 1, characterized in that: The integrated swivel core support (208) is made of polytetrafluoroethylene rod material, with internal threads (207) machined on the inner surface and external threads (206) machined on the outer surface. After milling, it is circumferentially machined into a structure of multiple fins (202), and the channels between adjacent fins (202) are used to allow some fluid to pass through.

3. The corrosion-resistant swirl core assembly structure for a jet device according to claim 1, characterized in that: The integrated spinner bracket (208) has an installation groove (205) at the upper end near the middle position, and a tool relief groove (203) is provided inside the integrated spinner bracket (208) at the lower end position.

4. The corrosion-resistant swirl core assembly structure for a jet device according to claim 1, characterized in that: Both the nozzle structure (3) and the swivel core structure (2) are made of polytetrafluoroethylene.

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