Rotational flow feed liquid distributor

Abstract

The utility model discloses a rotational flow feed liquid distributor, relates to high-speed atomizer component technical field, including main shaft, distribution seat, shell and distribution block, main shaft passes through said distribution seat and distribution block, the distribution seat is equipped with feed inlet and distribution cavity, the distribution seat and distribution block end face attach tightly, the shell is equipped with the feed inlet and the distribution cavity, and the distribution block is equipped with the feed inlet and the distribution cavity. The distribution block is provided with a spiral groove distributed in the circumferential direction, the distribution cavity is communicated with the spiral groove, the other end face of the distribution block is provided with a tightening nut used for fastening, and the shell, the distribution block and the tightening nut form a flow channel. The technical problem to be solved by the utility model is to provide the rotational flow feed liquid distributor which improves the blanking uniformity, effectively reduces the impact force and enhances the operation stability and reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of high-speed atomizer components, specifically to a swirling liquid distributor. Background Technology

[0002] In centrifugal atomizing equipment, the distribution and feeding method of the liquid feed to the high-speed rotating atomizing disc is crucial. Traditional straight-through feeding structures have significant drawbacks: the liquid feed typically impacts the atomizing disc surface directly and concentratedly, leading to uneven feeding, often resulting in uneven distribution, especially when the liquid flow rate is low. This concentrated impact not only causes poor material distribution but also generates significant impact force on the atomizing disc, particularly when processing liquids with a higher specific gravity. This strong impact increases the mechanical load on the atomizing disc, making it more prone to imbalance during operation. In severe cases, it can lead to increased equipment vibration, accelerated bearing wear, and even affect atomization efficiency and product particle size distribution, while also shortening the service life of critical components. Therefore, there is an urgent need for an improved distribution structure that can effectively and uniformly disperse the liquid feed, significantly reduce its impact force on the atomizing disc, adapt to flow fluctuations, and ensure feeding stability. Utility Model Content

[0003] Technical problem to be solved by the utility model

[0004] The technical problem to be solved by this utility model is to provide a swirling liquid distributor that improves the uniformity of material feeding, effectively reduces impact force, and enhances operational stability and reliability.

[0005] Technical solution

[0006] To solve the above problems, the technical solution provided by this utility model is as follows:

[0007] A swirling liquid distributor includes a main shaft, a distribution seat, a housing, and a distribution block. The main shaft passes through the distribution seat and the distribution block. The distribution seat has a feed inlet and a distribution cavity. The end faces of the distribution seat and the distribution block are fitted and fastened together. The distribution block has circumferentially distributed spiral grooves. The distribution cavity communicates with the spiral grooves. The other end face of the distribution block has a tightening nut for fastening. The housing forms a flow channel with the distribution block and the tightening nut.

[0008] The distribution seat and its cavity serve as the feed inlet and initial distribution space, guiding the feed to key components. The distribution block with spiral grooves is the core component for achieving uniform spiral feeding and reducing impact. Its circumferentially distributed spiral grooves force the feed to flow along a preset spiral path, completely changing the traditional direct-flow method. This allows the feed to be evenly dispersed downstream, effectively solving the problems of uneven feeding at low flow rates and uneven distribution on one side. The spiral motion consumes the kinetic energy of the feed, significantly reducing the direct, concentrated impact force on the atomizing disc, especially effective for high-density feeds. The flow channel formed by the outer shell and the tightening nut works in conjunction with the distribution block to guide and constrain the feed flowing out through the spiral grooves, ensuring a smooth transition. The specific flow channel shape (including a narrowing effect) further buffers the feed and reduces its velocity, working in conjunction with the spiral grooves of the distribution block to maximize the reduction of impact force. The tight fit and secure fastening of the distribution seat / block and the tightening nut ensure reliable sealing of the internal flow channel, preventing leakage or unexpected flow paths. This guarantees that the liquid flows strictly according to the designed spiral path and flow channel, forming the structural foundation for stable, uniform, and low-impact dispensing. In summary, this structural combination, through forced spiral flow of the liquid (spiral groove of the distribution block) and orderly buffering guidance (outer shell / nut flow channel), jointly achieves uniform dispersion of the liquid, effective attenuation of impact force, and adaptability to flow fluctuations, thereby significantly improving the stability of the atomizing disc operation and the reliability of the equipment.

[0009] Optionally, the helix angle of the spiral groove is 10° to 80°.

[0010] Limiting the helix angle to the range of 10° to 80° is a key design feature that balances uniform dispersion with energy consumption and impact attenuation. This ensures that the distributor can reliably achieve uniform, stable, and low-impact dispensing under a wide range of operating conditions (especially low flow rates) and feed characteristics (especially high specific gravity), thereby solving core issues such as imbalance in atomizing disc operation and improving equipment stability and lifespan.

[0011] Optionally, the tightening nut has a tapered inclined surface on its outer side, which forms a tapered flow channel with the inner side of the housing.

[0012] The conical flow channel formed by the tapered inclined surface on the outer side of the tightening nut and the inner side of the outer shell is a key structure that further optimizes the flow state of the liquid, enhances the buffering effect, and ultimately achieves low-impact feeding, following the spiral groove. This conical flow channel structure performs secondary and in-depth buffering treatment on the liquid (especially high-density liquid) through orderly guidance, increased frictional resistance, forced change of flow direction, and dissipation of kinetic energy, significantly reducing the impact force that ultimately acts on the high-speed rotating atomizing disc. Working in synergy with the spiral groove, it ensures that the liquid enters the atomization zone in a uniform, stable, and low-impact state, fundamentally eliminating the main external force factors that cause imbalance in the atomizing disc's operation, and greatly improving the stability and reliability of the equipment operation.

[0013] Optionally, the opening of the tapered flow channel is connected to the inlet of the atomizing chamber of the atomizing disc.

[0014] By eliminating intermediate impact points and energy rebound, the buffering effect is ensured to reach the target directly and enter the core of the atomizing disc—the atomizing chamber—directly and without obstruction. This completely avoids any unnecessary collisions between the liquid and other structures of the atomizing disc before it reaches the effective atomization area, thus eliminating the ineffective release and rebound of impact energy.

[0015] Optionally, the housing is fixed to the distribution seat, and the axes of the housing and the distribution seat coincide.

[0016] The outer casing is fixed to the distribution seat, ensuring strict axial alignment. This is not merely a simple installation requirement, but the cornerstone for the entire vortex feed distributor to achieve its core functions (uniform, stable, and low-impact feeding). By providing precise geometric references, robust mechanical support, and a reliable sealing environment, it ensures that the design effects of the spiral grooves and conical flow channels are perfectly realized and maintained over the long term. This effectively solves the problems of uneven feeding and unbalanced atomizing disc operation caused by high impact force in traditional structures, ultimately improving the overall stability and service life of the equipment.

[0017] Optionally, the other end face of the distribution block is provided with an external thread, and the tightening nut is provided with an internal thread that mates with the external thread.

[0018] The engagement of the external thread on the end face of the distribution block and the internal thread of the tightening nut provides a strong and controllable axial locking force, which securely integrates the core functional components (distribution block and tightening nut), ensuring the long-term stability of the geometric accuracy of the internal key flow channels (downstream of the spiral groove and the conical flow channel), effectively resisting the impact load of the liquid material, and thus providing solid mechanical support for completely solving the problems of uneven impact and unbalanced operation of the atomizing disc caused by the traditional feeding method.

[0019] Optionally, the inner side of the other end face of the distribution block is provided with a distribution step, and the inner side of the tightening nut is provided with a tightening step. The distribution step and the tightening step are used to accommodate the central volume of the atomizing disc.

[0020] By providing precise positioning and strong proximal support to the center of the atomizing disc, the atomizing disc's ability to resist external forces (impact force, centrifugal force) is fundamentally enhanced, the vibration source is suppressed to the maximum extent, and the atomizing disc can rotate smoothly and reliably at high speed in the optimized low-impact material flow environment, avoiding interference.

[0021] Alternatively, the spiral groove can be a conical spiral with a larger top and a smaller bottom.

[0022] Designing the spiral channel as a tapered structure, wider at the top and narrower at the bottom, represents a significant optimization of its core functions: uniformly dispersing the liquid and consuming kinetic energy to reduce impact. The tapered contraction creates a centripetal convergence effect on the liquid, helping to constrain the flow and ensure it more closely adheres to the spiral path, reducing internal turbulence or splashing. This more stable and controlled spiral flow, combined with the tapered cross-section, reliably and evenly spreads the liquid across the entire circumference before smoothly delivering it to the downstream tapered channel.

[0023] Beneficial effects

[0024] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0025] The technical solution provided by this utility model utilizes circumferential spiral grooves on the end face of the distribution block. This causes the liquid flowing into the distribution chamber to rotate after entering the spiral grooves, transforming the original concentrated, linear impact on the atomizing disc into a uniformly dispersed swirling output along the circumference. This swirling distribution method not only significantly reduces the direct impact force of the liquid on the atomizing disc but also improves the uniformity of the feed, avoiding equipment vibration and operational imbalance caused by uneven liquid distribution. Simultaneously, this structure has a certain flow adaptability, maintaining stable liquid output under different operating conditions, improving the stability and reliability of equipment operation, extending the service life of key components, and meeting the requirements of centrifugal atomizing equipment for high-quality atomization and continuous stable operation. Attached Figure Description

[0026] Figure 1 A cross-sectional view of a cyclone liquid distributor proposed for an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the spiral groove structure of a cyclone liquid distributor proposed for an embodiment of this utility model;

[0028] Figure 3 A partial cross-sectional view of a cyclone liquid distributor proposed for an embodiment of this utility model;

[0029] 1. Distribution seat; 101. Feed inlet; 102. Assembly ring groove; 103. Distribution cavity; 2. Main shaft; 201. Conical section; 3. Bolt; 4. Distribution block; 401. Spiral groove; 402. External thread; 403. Distribution step; 5. Tightening nut; 501. Internal thread; 502. Tightening step; 503. Conical inclined surface; 6. Outer shell; 601. Conical inclined structure; 7. Atomizing disc; 701. Atomizing cavity; 8. Fastening nut. Detailed Implementation

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0031] Example 1

[0032] Combined with appendix Figure 1-3 A swirling liquid distributor includes a main shaft 2, a distribution seat 1, a housing 6, and a distribution block 4. The main shaft 2 passes through the distribution seat 1 and the distribution block 4, and the three are circumferentially positioned by a keyway. The distribution seat 1 is provided with an inclined inlet 101 and a distribution cavity 103. The axis of the inlet 101 is inclined at a 30-degree angle to the main shaft 2 to reduce the impact of the inflow. The end faces of the distribution seat 1 and the distribution block 4 are statically sealed and fastened by sealing rings and three sets of bolts.

[0033] Combined with appendix Figure 2 The distribution seat 1 is provided with an inlet 101 and a distribution cavity 103. The distribution seat 1 and the distribution block 4 are tightly fitted together at their end faces. The distribution block 4 is provided with circumferentially distributed spiral grooves 401, and the outer periphery of the distribution block 4 is provided with a positioning shoulder. The spiral grooves 401 with gradually varying depths are distributed circumferentially, and the bottom of the grooves is polished to a mirror-level finish to reduce flow resistance. The distribution cavity 103 and the spiral grooves 401 are connected by an annular pressure equalizing groove. The other end face of the distribution block 4 is provided with an external thread 402, and a relief groove is added at the root of the thread to eliminate stress concentration.

[0034] The distribution cavity 103 is connected to the spiral groove 401. The other end face of the distribution block 4 is provided with a tightening nut 5 for fastening. The tightening nut 5 adopts a split locking structure. Its inner side is provided with an internal thread 501 to cooperate with the distribution block 4, and a wrench slot is opened on the end face. The outer tapered slope 503 of the tightening nut 5 is surface hardened and forms a tapered flow channel with the inner side of the outer shell 6 at a half angle of 15 degrees. The flow channel clearance tolerance is controlled within ±0.05 mm.

[0035] Combined with appendix Figure 1 , 3 The outer shell 6, distribution block 4, and tightening nut 5 form a flow channel. Heat dissipation fins are welded to the bottom of the outer shell 6, which is connected to the distribution seat 1 by bolts 3 via a flange. A locating pin is set on the mating surface to ensure that the axis coincides. The distribution step 403 on the inner side of the distribution block 4 and the tightening step 502 of the tightening nut 5 together form a positioning cavity for the atomizing disc 7 with a precision tolerance fit. The corners of the steps are rounded to avoid stress cracking.

[0036] The spiral groove 401 has an inlet width of 20 mm and an outlet width of 8 mm, with a taper ratio of 1:3. Microchannels with a depth of 0.2 mm and a width of 0.5 mm are cut into the groove wall to improve boundary layer flow. A tungsten carbide coating is sprayed onto the inner wall of the flow channel to enhance wear resistance.

[0037] The spiral helix angle of the spiral groove 401 is 10°~80°. In this embodiment, the spiral groove 401 can adopt a variable helix angle structure from the inlet to the outlet: inlet section (0-30% length) helix angle 10°-25°: enhances centrifugal dispersion and ensures low flow rate fullness; transition section (30-70% length) helix angle 25°-60°: balances flow velocity and kinetic energy consumption; outlet section (70-100% length) helix angle 60°-80°: suppresses turbulence and smoothly connects to the conical flow channel. A wedge-shaped slag discharge groove (0.5mm deep, 2mm wide) is added to the bottom of the 10° small helix angle section to prevent particle deposition; silicon nitride ceramic wear-resistant strips (1.5mm thick) are embedded in the wall of the 80° large helix angle section to resist the scouring of high solid content liquid; the distribution block 4 is equipped with a hydraulic adjustment chamber, which drives the elastic deformable body (silicon bronze material) by changing the oil pressure. The helix angle of the spiral groove 401 can be adjusted in real time within the range of 15°-75° to adapt to viscosity fluctuations.

[0038] The outer side of the tightening nut 5 is provided with a conical inclined surface 503, which forms a conical flow channel with the inner side of the outer shell 6. The conical inclined surface 503 adopts a double curvature composite surface: axial section: a straight conical surface with a half angle of 15°; circumferential section: a concave arc surface with a curvature radius R=50mm; it induces the liquid to generate a swirling secondary flow, and the kinetic energy attenuation rate is increased by 35%.

[0039] The conical flow channel's inlet connects to the atomization chamber 701 inlet of the atomizing disc 7. The inlet brush features a dynamic sealing interface and a triple sealing system: First stage: a metal bellows compensator (material Inconel 718); compensating for axial thermal displacement ±1.5mm and radial displacement ±0.3mm; Second stage: a spring-loaded sealing ring (filled with PTFE + bronze powder), temperature resistant up to 320℃, sealing pressure ≥8MPa; Third stage: a labyrinth-type gas seal ring, purged with 0.05MPa nitrogen to prevent particulate matter intrusion. An embedded self-cleaning blade ring, made of cemented carbide K40, features 16 sets of rotary cutting teeth with a 55° cutting angle and an 8° clearance angle. The blade ring's rotation speed is 0.15 times the rotation speed of the atomizing disc 7, providing differential rotary cutting.

[0040] The outer casing 6 is fixedly connected to the distribution seat 1, and the axes of the outer casing 6 and the distribution seat 1 coincide. The fixed connection of the outer casing 6 to the distribution seat 1, and the fact that the outer casing 6 and the distribution seat 1 share the same axis, ensures the structural symmetry and dynamic balance performance of the entire cyclone liquid distributor under high-speed rotation. This coaxial design not only improves the stability of equipment operation and avoids vibration and mechanical impact caused by eccentricity, but also ensures that the liquid flows uniformly along the circumferential direction during distribution, further improving the consistency of material feeding and atomization effect. Furthermore, the robust connection between the outer casing 6 and the distribution seat 1 enhances the rigidity of the overall structure, improves vibration resistance and operational reliability, and provides a strong guarantee for the efficient, stable, and long-term operation of the centrifugal atomizing equipment.

[0041] The other end face of the distribution block 4 is provided with an external thread 402, and the tightening nut 5 is provided with an internal thread 501 that mates with the external thread 402. This threaded engagement structure not only facilitates assembly and disassembly, improving maintenance efficiency, but also ensures a tight fit between the distribution block 4 and the end face of the distribution seat 1 by tightening the tightening nut 5, preventing material leakage and enhancing sealing reliability. Simultaneously, this detachable fastening method provides flexibility for adjusting the position of the spiral groove 401 or replacing the distribution block 4 with different specifications, further enhancing the distributor's adaptability to different operating conditions and flow rates.

[0042] The inner side of the other end face of the distribution block 4 is provided with a distribution step 403, and the inner side of the tightening nut 5 is provided with a tightening step 502. The distribution step 403 and the tightening step 502 are used to accommodate the central volume of the atomizing disk 7. When the distributor is connected to the atomizing disk 7, it can achieve axial positioning and support, ensuring that the atomizing disk 7 is installed firmly and properly aligned, avoiding problems such as unstable operation or uneven atomization caused by misalignment or loosening. At the same time, the mating structure of the distribution step 403 and the tightening step 502 also enhances the compactness and sealing of the overall component, prevents liquid leakage, improves the safety and reliability of equipment operation, and further ensures the stable working performance of the centrifugal atomizing equipment under complex working conditions.

[0043] The spiral groove 401 is a conical spiral, wider at the top and narrower at the bottom. As the liquid flows along the spiral groove 401, the flow velocity steadily increases as the cross-sectional area gradually decreases, further enhancing the swirling effect and distribution uniformity. Compared to a spiral groove 401 with a constant cross-section, the conical spiral structure is more conducive to guiding the liquid smoothly through the flow and accelerating uniform dispersion, reducing flow resistance and energy loss, and preventing the generation of local eddies or stagnation. Furthermore, this structure can effectively adapt to different flow conditions, maintaining good distribution characteristics even at low flow rates, improving the distributor's applicability and operational stability, and providing a strong guarantee for achieving efficient and uniform atomization.

[0044] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cyclone liquid distributor characterized by, The device includes a main shaft, a distribution seat, a housing, and a distribution block. The main shaft passes through the distribution seat and the distribution block. The distribution seat has a feed inlet and a distribution cavity. The end faces of the distribution seat and the distribution block are fitted and fastened together. The distribution block has circumferentially distributed spiral grooves. The distribution cavity is connected to the spiral grooves. The other end face of the distribution block has a tightening nut for fastening. The housing forms a flow channel with the distribution block and the tightening nut.

2. The cyclone liquid distributor according to claim 1, characterized in that, The helix angle of the spiral groove is 10°~80°.

3. The cyclone liquid distributor according to claim 1, characterized in that, The tightening nut has a tapered inclined surface on its outer side, and the tapered inclined surface and the inner side of the outer shell form a tapered flow channel.

4. A cyclone liquid distributor according to claim 3, characterized in that, The opening of the conical flow channel is connected to the inlet of the atomizing chamber of the atomizing disc.

5. A cyclone liquid distributor according to claim 1, characterized in that, The outer casing is fixed to the distribution seat, and the axes of the outer casing and the distribution seat coincide.

6. A cyclone liquid distributor according to claim 1, characterized in that, The other end face of the distribution block is provided with an external thread, and the tightening nut is provided with an internal thread that mates with the external thread.

7. A cyclone liquid distributor according to claim 1 or 6, characterized in that, The inner side of the other end face of the distribution block is provided with a distribution step, and the inner side of the tightening nut is provided with a tightening step. The distribution step and the tightening step are used to accommodate the middle volume of the atomizing disc.

8. A cyclone liquid distributor according to claim 7, characterized in that, The spiral groove is a conical spiral that is larger at the top and smaller at the bottom.

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