ADVANCED FIXED BLADE OUTLET DIRECTION SYSTEM FOR INDUSTRIAL AXIAL FANS.

Abstract

This invention relates to an outlet guiding system that directs the airflow axially by reducing the rotational air movement generated at the outlet of industrial axial fans. The system consists of five main components: a housing (1) integrated into the fan outlet, multiple guiding vanes (3) fixed to this housing, a fixing piece (2) that stabilizes the air inlet, an outer throat (4) that fixes the outer ends of the vanes, and a cover (5) placed to prevent turbulence in the center. The guide vanes (3) are positioned at a specific angle to convert the rotational (swirl) movement at the fan outlet into axial flow. The fixing piece (2) ensures smooth air passage between the fan throat and the system, while the outer throat (4) supports the direction by defining the outer limit of the airflow. The cover (5) prevents vortices that may occur in the central flow. The system increases fan efficiency, raises static pressure, reduces turbulence, and lowers energy consumption. This aerodynamically optimized structure is a modular and integrated solution that significantly improves fan output performance.

Description

1 TARIFF FIXED BLADE FAN DESIGNED FOR INDUSTRIAL AXIAL FANS. EXIT GUIDANCE SYSTEM This invention is suitable for industrial ventilation requiring high-volume air transport. flow characteristics at axial flow fan outlets used in systems a structure related to fixed-wing exit guidance systems aimed at improvement It is receiving. The invention is particularly relevant for industrial axial fan systems; for example, in textile factories, 10 food processing plants, automotive production lines, large-volume warehouses and hangars with ventilation systems in HVAC (Heating, Ventilation and Air Conditioning) systems It was developed for use. Axial fans move air in the axial direction and produce high-flow air. These are types of fans that provide airflow. However, at the outlet of these types of fans, the blades are 15. Due to its geometry, a significant amount of swirling flow occurs. This situation, This leads to the airflow becoming directionless, increased turbulence in the system, and static pressure. This leads to losses and a decrease in energy efficiency. The system described in the invention is integrated into the axial fan outlet and features at specific angles. Thanks to the fixed wing structures positioned, the rotational movement is converted to axial flow by 20 by transforming the airflow to make it smooth, directional, and low-turbulence. The aim is to increase fan performance and reduce energy consumption. This results in a reduction in demand and quieter working conditions. Furthermore, the invention is structurally designed to minimize irregularities in the airflow path. Housing, fastening element, cover and outer casing designed to match the fan geometry. 25 It also includes throat elements, while maintaining the aerodynamic integrity of the system. It ensures highly efficient operation. State of the Art Axial fans used in industrial ventilation systems have a high flow rate of 30V. Due to its airflow capacity, it is mainly used in textiles, food processing, automotive and large industries. Widely used in many industrial fields, including bulky warehouse ventilation systems. They are used as such. However, one of the main disadvantages of these fans is the fan outlet. 2 the resulting swirling flow and the turbulence created by this flow, and the efficiency It is a loss. In such systems, the output flow is non-directional and irregular; this affects both static flow. This leads to a drop in pressure and an increase in energy consumption. Furthermore, this type of... turbulent flow, high noise levels in duct systems, wear and tear, and low 5 This leads to problems such as performance issues. Therefore, the rotational movement at the outlet of axial fans is arranged in an axial direction. Outlet Guide Vanes are fixed-wing structures designed for conversion purposes. (OGV) systems have long been discussed in the literature and industrial applications. These systems are used. By regulating the flow direction, they reduce the 10 that occurs at the fan outlet. It aims to reduce vortices. However, most current systems fail for the following reasons: It is insufficient: Limitations of Current Technologies: The fixing angle must be fixed: The fixed wings used in current systems are manufactured at a specific angle, therefore 15 They may not be perfectly compatible with fans operating at different speeds. This situation causes some This leads to insufficient swirl removal under the operating conditions. Wing Geometry Lacking Optimization: Wing profiles designed with inadequate aerodynamic analysis create a secondary problem in airflow. It can become a source of turbulence. 20 Insufficient Structural Integration: Complementary parts such as the fan housing, outer throat, and central cover structure. When not considered systematically, the system integrity and efficiency of the OGV are limited. It remains. Some of the patents listed below illustrate the state of the current art. It is important to present and highlight the difference of the solution that is the subject of the invention. It is: US 7,290,949 B2 – Axial Flow Fan Having Guide Vane Unit: This patent describes how the guide vanes located at the fan outlet create a smoother airflow. It states that it is aimed at making it into a modular state. However, with its fixed-angle, non-modular structure, 30 It cannot provide sufficient efficiency for every fan type and operating condition. 3 JP2005190142A – Guide Vane Device for Axial Fan: This Japanese application addresses the structural arrangement of the steering wings. However, aerodynamic regulators such as the central valve are used to prevent turbulence. The following elements are not included. EP1440797A1 – Axial Fan System with Flow Control Vane: 5 A control vane that straightens the airflow at the fan outlet is described in the European Patent. The proposed structure is inadequate in terms of fan integration, It does not include supporting elements such as the body and lid. CN111122513A – Energy-saving axial fan with guide vanes: This application, originating from China, aims to improve the energy efficiency of an OGV 10. The system is being defined; however, the system offers solutions limited only to wing angles. It does not offer solutions that suppress turbulence from the center. The OGV structure included in this invention is characterized not only by the angle and profile of the wings; It is also a unit with its body structure, fastening element, outer throat and cover component. It is designed as a whole. Thus, the rotational movement at the fan outlet is effectively 15 is reduced, flow is axially oriented, and system efficiency is significantly improved. The number of blades is increased. The blades are optimized according to the fan type and application area to a specific standard. positioned at an angle; concentric structure integrated with the hull and outer throat. protected and with a specially designed cover to suppress turbulence in the center. It has been supported. 20 Thanks to this integrated structure, the limitations of existing techniques are eliminated. abolished, and a new efficiency and stability standard for OGV systems. It has been created. Brief Description of the Invention 25 This invention is a fixed-blade outlet developed for industrial axial fan systems. The invention relates to the outlet guide vane (OGV) system for axial fans. by reducing the rotational (swirl) air movement occurring at the outlet, the airflow is axial. directing in that direction, thus reducing the level of turbulence in the system and saving energy. It includes a multi-component structure that increases its efficiency. 30 The system described in the invention consists of fixed steering systems positioned at specific angles. vanes, which ensure that these vanes are attached concentrically and rigidly to the fan outlet. housing structure, fixing part regulating air intake, suitable for fan outer diameter 4 designed to prevent air congestion in the outer throat and central region. It consists of several elements. These elements work together to make the airflow more directional. It makes the environment regular and with low turbulence. The system's most important technical contribution is that it replaces traditional fixed MVV structures. It is aerodynamically optimized to address its shortcomings. Wing 5 The angle and placement of the cover and outer throat make the airflow axial; Auxiliary structures smooth the entry of flow into the channel system, reducing static pressure. It reduces losses. This allows the fan system to achieve higher static electricity at the same airflow rate. By providing pressure and efficiency, it can operate with lower energy consumption. As a result of the application, the fan efficiency in the system using OGV was approximately 12.8%. It is increasing by a certain percentage; the static pressure value is improving by 27.9%. This means that, the invention is an engineering feat that both saves energy and improves performance. This shows that it offers a focused solution. Figure Description 15 The subject of this application is; "Constant Developed for Industrial Axial Fans". The "winged exit guidance system" is shown in the attached figures, which are as follows: Figure 1: "Improved fixed-blade outlet for industrial axial fans" This is a top-down perspective view of the "guidance system". Figure 2: “Improved fixed-blade outlet 20 for industrial axial fans” This is a bottom-down perspective view of the "guidance system". Figure 3: "Improved fixed-blade outlet for industrial axial fans" This is a bottom view of the "routing system". Figure 4: "Improved fixed-blade outlet for industrial axial fans" This is a top view of the "guidance system". 25 Figure 5: "Improved fixed-blade outlet for industrial axial fans" This is a cross-sectional view of the "guidance system". The attached technical drawings have been prepared to facilitate understanding of the invention. These are illustrative drawings; actual scale and / or full-size applications are not available. 30 This does not reflect the invention. All dimensions, proportions, and relative positions in the drawings reflect the invention. It shows the general principles for describing technical specifications and is precise. They should not be considered as production measurements. The drawings highlight the key innovative elements and technical solutions of the invention. It has been simplified for the purpose of extracting the narrative integrity and the invention. Secondary details that are not critical to understanding the design have been deliberately left out of the drawing. The reference numbering system used in the drawings ensures functional integrity. It was created based on the following: All elements shown with the same reference number: 5 Structurally largely identical, Functionally completely equivalent, They represent components that produce similar results in terms of technical impact. This This is the case even though there are minor dimensional differences in different application variations. It remains valid. 10 Explanation of Part References This application concerns "Conduit-type fans developed for industrial axial fans". Our invention entitled "winged exit guidance system" is shown in the attached figures. They are numbered, and the part names corresponding to these numbers are listed below. 15 It has been given. NO PART NAME 1 Body 2 Fixing pieces 20 3 Wings 4. External throat Lid Detailed Description of the Invention 25 This invention is suitable for industrial ventilation requiring high airflow rates. to improve the output performance of axial fans used in systems with an improved, fixed-vane outlet guide vane (OGV) This is related to the rotational air movement (swirl) created at the fan outlet, which causes the flow to be non-linear. This leads to increased turbulence and decreased energy efficiency. The system that is the subject of the invention converts this swirling motion into axial flow. The aim is to increase system efficiency and minimize energy losses. 6 The system consists of five main components: body (1), fixing part (2), steering wings (3), outer throat (4) and cover (5). These components are integrated with each other. It is designed to work in this way and can be easily mounted to the fan outlet. They form a modular structure. The housing (1) is the main supporting element of the system. It is concentric with the fan outlet. and assembly of other parts such as the guiding wings (3) and cover (5) It serves as a structural support function that enables orientation. The body (1), especially the steering by ensuring that its wings remain fixed in the axial direction, turbulence-free and smooth It ensures the sustainability of airflow. It also ensures the mechanical stability of the system. It guarantees that the wing geometry will operate without deformation. 10 It allows. The fixing piece (2) provides the connection between the fan neck and the OGV system. It is an aerodynamic element. This part has a funnel-shaped structure and is the suction point of the fan. by smoothing the airflow on the side, the steering vanes (3) are controlled It ensures that it is transmitted in some way. The fixing piece (2) increases the laminarity of the flow and 15 This reduces vortex formation at the front of the system. Additionally, this design facilitates the flow of air through the fan's inlet. It allows the exit guidance system to work more smoothly. The steering vanes (3) are the performance-critical component of the invention. These fixed vanes direct the rotational airflow at the fan outlet in the axial direction. It is positioned at a specific angle to guide the direction. The profile of the wings and 20 The placement angle was optimized with experimental data. Swirl formed at the fan outlet. The movement is directed by these wings, thus reducing the level of turbulence. and static pressure is increased between the wings (3), fuselage (1) and the outer throat (4). It is secured with a tight connection. The outer throat (4) defines the outer boundary of the system and the steering vanes (3) 25 It is the structure that fixes the outer endpoints. This element provides both structural support. and by directing the airflow that could disperse outwards, it improves the aerodynamics of the system. It contributes to its efficiency. The outer throat (4) is perfectly matched to the outer diameter of the fan. It is designed in such a way that there is a smooth transition in the system's connection with the channels. It provides. 30 Cover (5) covers the central gap at the fan outlet and prevents any problems that may occur there. It is an aerodynamic element that prevents swirling motion. It is usually a fixed disc. 7 This lid, designed in this way, eliminates negative pressure zones that form in the center. By suppressing the flow, it directs the airflow outwards. This allows the center to be controlled. Turbulence in the area is reduced, resulting in a quieter and more stable flow throughout the system. It is provided. How the System Works: 5 When the fan is running, air is drawn axially by the fan blades and directed outwards. The flow is transmitted correctly. However, as a result of this movement, there is a noticeable rotational (swirl) component in the flow. This occurs because a swirl disrupts the linear motion of the airflow, leading to energy loss and reduced efficiency. This causes a drop. The OGV system, which is the subject of this invention, converts this rotational motion into axial motion. It is designed to rotate in the correct direction. 10 The airflow is first regulated via the fixing piece (2). Then then the flow encounters the guiding vanes (3), special angles of these vanes Thanks to this, it is freed from rotational motion and is directed in the axial direction. The wings, as it passes through the airflow, it directs it while simultaneously minimizing energy losses. minimizes mechanical damage to the fuselage (1) and outer throat (4) during this steering process. By providing support and aerodynamic restraint, it increases the effectiveness of the wings. The cover (5) by preventing backflow and vortices that may occur in the center, even in the center of the system. It maintains smooth flow conditions. Test results showed that the fan's efficiency rate increased when the OGV system was implemented. The pressure increased from 53.3% to 66.1%; and the static pressure rose from 672 Pa to 860 Pa. This has been determined. This includes the system's energy efficiency, channel compatibility, noise level, and maintenance. This shows that it offers significant advantages in terms of requirements. 30

Claims

8 REQUESTS 1) For use in industrial axial fans, the rotational current generated at the fan outlet. reducing air movement and directing airflow in the axial direction It is an exit guidance system designed for this purpose, and its feature is; 5  A fuselage (1) that supports the steering wings (3) concentrically,  ensuring that the airflow reaches the steering vanes evenly a fixing piece (2),  Multiple fixed steering vanes positioned at a specific angle (3),  where the outer ends of the steering vanes are fixed and the airflow is directed to the outside 10 outer strait defining its border (4),  and to prevent vortices that may form in the central region of the fan outlet placed cover (5) an exit routing system characterized by its inclusion. 2) According to the exit routing system specified in Request 1, routing is 15 The angles of the wings (3) axially reduce the rotational air movement generated at the fan outlet. optimized as a result of aerodynamic analyses to rotate in that direction It is characterized by its nature. 3) Fixing according to the exit guidance system specified in Request 1 or 2. part (2) being in the form of a suction funnel and 20 between the fan throat and the system It is characterized by being positioned in a way that stabilizes airflow during transit. It is done. 4) According to any of claims 1-3, the outer diameter of the fan (4) is the outer diameter of the outer throat. having a compatible circular structure and the outer ends of the steering wings (3) 25 characterized by reducing aerodynamic losses by ensuring its stability. It is done. 5) According to any of claims 1-4, the structure of the cover (5) at the fan outlet it is positioned to cover the central area and the negative effects that may occur here It reduces pressurized turbulence, thereby stabilizing the central flow. It is characterized by its structure. 30 6) According to any of claims 1-5, the trunk (1) has both orientation Integrated connection to secure both the wings and the cover (5) structure. An exit guidance system characterized by having slots. 9 7) According to any of claims 1-6, the system is modularly manufactured. and mounted to the fan outlet via bolted, snap-on or crimp connections. It is characterized by its ability to be done. 8) According to any of claims 1-7, the steering wings (3) 5 The number and locations of which are determined according to the fan diameter and flow rate requirement. an exit guidance system characterized by its... 9) According to any of claims 1-8, all components (1, 2, 3, 4, 5) are high. strong, corrosion-resistant lightweight alloy materials or composites It is characterized by being made of certain materials. 10) A housing (1) for use in industrial axial fan outlets, 10 fixing part (2), guiding wings (3), outer throat (4) and cover (5) a modular structure consisting of components such as these, which can be mounted to the fan outlet It is an exit guidance system designed as such, and its feature is; the system its components can be produced as independent parts and in the field It is characterized by its ability to be joined together for easy assembly. 15 25

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