MODERNIZED CYLINDRICAL CONTROLLED GATE VALVE PROVIDING RELIABLE SEALING IN INDUSTRIAL PIPELINES.

Abstract

The invention relates to a cylindrical triangular controlled gate valve developed to offer a comprehensive and sustainable solution to the structural and operational problems of conventional gate valve systems used in industrial pipelines, such as sealing losses, high friction and wear, loss of efficiency due to pressure drop, and excessive torque requirements.

Description

1 TARIFF PROVIDING RELIABLE SEALING IN INDUSTRIAL PIPELINES. MODERNIZED CYLINDRICAL CONTROLLED GATE VALVE Technical Area The invention provides a modernized 5-inch industrial pipeline that offers reliable sealing. This relates to cylindrical triangular controlled gate valves. State of the Art Controlled transfer and interruption of fluids in industrial pipelines. Valve systems used for this purpose, especially in high-pressure applications, Gate valves are important components. In this context, gate valves, when fully open, create a flow path of 10 because they offer minimum resistance and provide a seal in the closed position petrochemical plants, power plants, water treatment systems, and natural gas distribution lines It is widely preferred in a broad range of applications such as those mentioned. However, current The long-standing industrial use of gate valve technologies has made these systems... It has revealed various technical limitations and operational challenges. 15 The primary problem encountered in conventional gate valve designs is leakage. This refers to the loss of performance of the components over time, especially under high pressure. Elastomeric seals in operating systems are subjected to repeated mechanical stresses and chemical reactions. As a result of these interactions, the plastic undergoes deformation. This situation affects the seals. This leads to deterioration in seating surfaces and impairs the sealing function. This leads to losses. In the petrochemical industry, abrasive or corrosive substances... When it comes to lines carrying fluids with specific properties, the seal in question... wear and tear is accelerating further, and the risk of leakage directly threatens operational safety. It reaches dimensions that require homogeneity in current applications. Failure to disperse is one of the main reasons for this problem. 25 Another problem in current applications is the opening and closing cycles in gate valves. This is caused by the friction forces that occur between metal surfaces during operation. In traditional applications, during the movement of the sliding element within the body Direct metal-to-metal contact occurs, and this affects both surface roughness. This leads to both increased friction resistance and material fatigue. Increased friction resistance, 30 This accelerates wear on the moving parts of the valve, which can cause leaks. 2 This leads to deformations in the geometry and the need for early maintenance, especially in large areas. This effect becomes more pronounced in gate valves with nominal diameters, and maintenance This significantly increases their costs. Current gate valve systems also suffer significant losses in terms of hydraulic efficiency. available. In standard designs, geometric interruptions and abrupt changes along the flow path. 5 Turbulence occurs due to expansions, which leads to a drop in pressure and loss of energy. This is the reason. The system pumps need to be higher to compensate for these losses. They need to be operated at high power levels, which increases electricity consumption and the pump It shortens the lifespan of the equipment. Gate valves can be operated especially when opening from the closed position or exactly 10 A very high torque must be applied at the closing moment. Manual In these applications, this situation creates physical difficulties for the operator, due to repetitive movements. This leads to errors due to fatigue. In automated systems, there is a need for high torque. larger and higher power consuming electric or pneumatic actuators This makes its use mandatory. This situation increases both the initial investment cost and the ongoing 15 This increases energy costs. Furthermore, the valve operates under high mechanical loads. thermal protection in housings, especially in applications exposed to temperature variations. Deformations due to expansion are observed, and these deformations affect the seal. This disrupts the flatness of their surfaces and leads to leakage problems in the long term. In conclusion, due to the negative aspects described above and the current solutions regarding topic 20 Due to its shortcomings, an improvement is needed in the relevant technical field. It has been made. Purpose of the Invention The invention was created by drawing inspiration from existing situations and overcoming the aforementioned drawbacks. It aims to solve. 25 The main purpose of the invention is to replace the conventional gate valve used in industrial pipelines. Sealing losses detected in the systems under the known state of the art are high. friction and wear, loss of efficiency due to pressure drop, and excessive torque requirements, etc. The goal is to offer a comprehensive and sustainable solution to their structural and operational problems. In this context, the invention is a gate valve design based on a piston-type printed valve system. 30 3 This provides reliable sealing in high-pressure applications. It aims to provide high performance while maintaining low pressure loss. Another aim of the invention is to increase the functional efficiency of the closing mechanism and The aim is to improve the long-term performance of sealing elements. For this purpose... The developed piston-controlled sealing mechanism activates the seal during the closing movement. ensuring that the pressure force applied to their surfaces is distributed homogeneously and evenly. It provides protection against point overloads encountered in traditional designs. by eliminating plastic deformation of elastomeric gasket materials This minimizes the risk of failure and thus significantly extends the service life of the sealing elements. It is extended to a certain extent. The piston mechanism is also supported by fluid pressure. 10 It hydraulically assists the transition of the sülüs (a type of Turkish musical instrument) to the closing position, thus Even under high pressure, a high contact pressure is created, completely eliminating the risk of leakage. It becomes possible to eliminate the pressure. The double-sided seal arrangement makes it possible to eliminate the pressure. balancing the effect of fluctuations on the system, coming from both directions. It provides a stable seal against fluids. 15 Another aim of the invention is to minimize the hydraulic resistance of the fluid passing through the valve. The aim is to reduce and increase energy efficiency. The invention's fully permeable structural design, When the valve is in the fully open position, the internal flow surface is flush with the pipeline. This ensures that there are no geometric constrictions or interruptions in the flow path. This does not occur. Thanks to this structural feature, the fluid passes through the valve without turbulence. It can pass through smoothly without creating a barrier and minimizes pressure losses. It is decreasing. Reducing the pressure drop involves the pump and compressor in the system. This allows their equipment to operate at lower power levels, which directly contributes to a decrease in electricity consumption and a reduction in operating costs. This advantage is particularly evident in long-distance pipelines, where the system's total energy is 25. It is of great importance in terms of efficiency. Another purpose of the invention is to provide the torque required during the opening and closing operations of the valve. significantly reduce its value and thus allow both manual and actuator operation. The aim is to provide operational ease under these conditions. The piston-assisted system reduces friction. Its structure, which balances the forces, eliminates the 30 encountered in traditional metal-to-metal contact systems. It eliminates the problem of high mechanical resistance. Low torque requirement, In manual applications, it reduces the operator's workload, while in automated systems it is smaller. This allows the use of smaller and more energy-efficient actuators. 4 This situation reduces both initial investment costs and ongoing operating expenses, in addition It extends the lifespan of actuator equipment. Another aim of the invention is to increase the resistance of the valve system to wear and corrosion. The goal is to provide long-term durability and low maintenance requirements. Accordingly, the piston... The mechanism and surfaces of the tablets are coated with advanced materials such as tungsten carbide or hard chrome. 5 They are enhanced with technologies that reduce surface deterioration caused by friction. This is prevented. The valve body is made of high-pressure resistant ASTM A216 WCB steel. alloy or corrosion resistant ASTM A351 CF8M stainless steel, for example. Manufactured from durable materials, the system maintains its mechanical integrity. Especially aggressive The preference for nickel alloys such as Inconel 625 in chemical environments broadens the scope of the invention. This ensures it can be used safely in a range of applications. Leakproofing. The use of PTFE, NBR, and graphite-reinforced metal gaskets in its components provides high performance. It offers superior resistance to temperature and chemical effects. Another aim of the invention is to reduce the risks of deformation due to thermal expansion. The aim is to provide a balanced load distribution at a temperature of 15°C. the negative effects of changes on valve body and sealing surfaces This reduces planarity distortions and the associated leakage problems. This is prevented. This feature is particularly useful in environments with high temperature variations, such as power plants. It is of critical importance in the applications where it occurs. Another aim of the invention is not only to offer technical performance improvements, but also the same 20 to raise industrial safety standards and operational sustainability in the meantime The aim is to increase oil and natural gas distribution lines, petrochemical plants, water treatment and distribution. as a reliable solution in infrastructure applications such as power plants with its systems The invention, which is intended to be positioned, reduces unplanned downtime by extending maintenance intervals. It reduces and increases operational efficiency. 25 The structural and characteristic features and all the advantages of the invention are given in the figures below. This becomes clearer thanks to the detailed explanation written with references to these figures. This will be understood, and therefore the evaluation should also take these forms and detailed explanations into consideration. It needs to be done by taking precautions. Figures to Help Understand the Invention 30 Figure 1 shows the isometric view of the gate valve that is the subject of this invention. Figure 2 shows the front view of the gate valve that is the subject of this invention. Figure 3 shows a cross-sectional view of the gate valve that is the subject of this invention. Figure 4 shows a detailed view of the gate valve that is the subject of this invention. Explanation of Part References 1 Body 5 2 Rear seat surface 3 Covers 4 Gaskets Shaft 6 Hamil 10 7 Hamil nuts 8 Handwheels 9. Underneath packing glands Seal pressure 11 First connecting element 15 12 Second connecting element 13. Third connecting element 14 Fourth connecting element Wedge 16 Pistons 20 17 O-ring 18 Gaskets 19 Top seal Detailed Description of the Invention This detailed explanation describes the reliable 25 in industrial pipelines that are the subject of the invention. The preferred choice is the modernized cylindrical, leak-proof, controlled gate valve. Their structures are explained solely to facilitate a better understanding of the subject. The body (1), which is the basic structural component of the gate valve that is the subject of the invention, forms the outer frame of the valve. It forms and constitutes the main tube-shaped reservoir through which the fluid passes. The body (1) is shaped by casting or forging techniques, then CNC machining 30 It is made to precise tolerances by the method. The body (1) has a fully transition structure. having a valve that allows fluid to flow without any narrowing occurring along the flow path. 6 It allows passage through it. The body (1) material, application ASTM A216 WCB steel alloy, resistant to high pressure depending on the required conditions. High corrosion resistance ASTM A351 CF8M stainless steel or particularly resistant to aggressive corrosion. nickel-based alloys such as Inconel 625 for use in chemical environments is selected. 5 The back seat surface (2) plays a role in performing the sealing function and the sülüs It is the main contact surface on which it sits when closed. The back seat surface (2) is optimized. It has a structured geometry and is designed to create high contact pressure; In this way, a complete and leak-proof contact surface is obtained between the wedge (15) and the wedge. The cover (3) protects the internal mechanism and the system by closing the top opening of the body (1). It ensures the maintenance of pressure integrity. The cover (3), third connection rigidly attached to the body (1) via element (13) and fourth connecting element (14) It is connected. The packing (4) prevents fluid leaks that may occur outwards around the shaft (5). It is a sealing element used to prevent high temperatures. The packing (4) is suitable for high temperatures. materials that offer superior resistance to harsh conditions and aggressive chemical fluids It is manufactured and has a structure with a long service life. Around the shaft (5) In order to ensure complete sealing integrity, the packing (4), under the packing It works with the gland (9) and packing seal pressure (10). The packing seal gland (9), The packing assembly must be compressed with sufficient force perpendicular to the axis. 20 while allowing the packing pressure (10) to transmit this pressure in a continuous and balanced manner. It provides. The spindle (5) converts the rotational movement transmitted from the handwheel (8) into the axial movement of the wedge (15). It is the power transmission element that converts the shaft (5). The shaft passes through the bearing (6) and the bearing nut. It works together with (7). In this mechanical system, 25 sq m is generated from the shaft by turning the handwheel (8). (5) transmitted rotational movement, axial movement via bearing nut (7) It is converted and this movement is transmitted directly onto the wedge (15). The hammer (6) acts as the structural component that directs and supports the movement of the shaft (5). The bearing nut (7) converts the rotational movement into axial movement. It is part of the screw-nut mechanism that plays a fundamental role in its transformation. 30 The handwheel (8) enables the operator to open and close the valve by applying rotational force. It is a manual actuator mounted on the end of the shaft (5). 7 The first connecting element (11) and the second connecting element (12) should preferably have a nominal diameter of M10. These are bolts which are used to connect the rear seat surface (2) to the body (1). The third connecting element (13) and the fourth connecting element (14) are preferably M20 nominal. bolts with diameter (3) and the cover (1) are rigidly and leakproofly attached to the body (1). It ensures the connection. These connecting elements are formed by the piston (16) 5 It allows the compressive forces to be safely transferred to the body (1). The wedge (15) is positioned perpendicular to the flow axis inside the shell (1) and It is the triangular element that directly performs the opening and closing function of the valve. Wedge (15), When moved upwards, it completely opens the flow path; when moved downwards... When this happens, it closes the flow path and sits on the back seat surface (2). 10 The piston (16) is an active piston located inside the housing (1) and in direct contact with the wedge (15). The pressure element applies additional axial force on the wedge (15) in the closing position. By implementing this, the leakage problems encountered in traditional gate valves are eliminated. It lifts. Thanks to this piston (16) supported structure, the wedge (15) inside the body (1) It is pressed evenly and controllably on both seating surfaces, so that the double-sided 15 Sealing is achieved. Balanced load offered by the piston (16) mechanism. Its distribution eliminates areas of excessive stress on the gasket surfaces, and It significantly extends the service life of the sealing elements. Piston (16) Surfaces are coated with tungsten carbide or hard chrome to protect against wear and corrosion. It is enhanced with advanced technologies. 20 The O-ring (17) is a ring-shaped seal positioned on the piston (16). It is an element. The O-ring (17) withstands pressure fluctuations thanks to its elastomer structure. It remains flexible and the pressure formed in the piston (16) chamber inside the body (1) It ensures that the transmission is made without loss. In this way, the piston (16) is wedge-shaped under all conditions. (15) can apply a constant and balanced pressure force. 25 The gasket (18) is the component that forms the sealing barrier between the piston (16) and the wedge (15). The gasket (18) distributes the load evenly to both sides thanks to its double-sided structure. It transfers heat and, with this feature, its service life is significantly longer compared to classic single-sided gaskets. It is extended to a certain extent. The upper seal (19) seals the upper part of the system. It is positioned to ensure its stability and under high pressure conditions 30 It has a modernized geometric structure that prevents deformation. Gasket (18) and The materials for the top gasket (19) are PTFE, NBR or graphite reinforced metal gaskets. They are selected according to the thermal and chemical resistance requirements of the application. 8 The operating principle of the gate valve, which is the subject of this invention, is as follows: The fundamental difference between the gate valve that is the subject of this invention and conventional gate valves is that... The sealing is not left solely to line pressure, but actively controlled by the piston (16) This is achieved through a controlled, balanced pressure system. The opening action of the valve is initiated by turning the handwheel (8) in a specific direction. Handwheel 5 The rotational movement transmitted from the wheel (8) is transferred through the shaft (5) onto the bearing nut (7) is transmitted and in this arrangement the rotational motion is converted into axial motion by wedge (15) It is moved upwards. When the wedge (15) moves completely upwards, the flow the path is opened and the fluid flows through the valve without any constriction or turbulence. It passes through without creating a barrier. Thanks to the fully permeable structure, the pressure loss at this position is 10. It remains at a minimum level. The closing action is performed by turning the handwheel (8) in the opposite direction. The force converted into axial motion via the shaft (5) drives the wedge (15) downwards. By moving it, it directs it towards the rear seat surface (2). Wedge (15) closing When approaching its position, unlike traditional gate valves, it only uses mechanical 15 Contact is not enough; at this stage, the piston (16) comes into play. The piston (16), The pressure force generated in the chamber inside the body (1) is added to the wedge (15) It applies axial force. Thanks to this active pressure mechanism, the wedge (15), The body (1) is pressed evenly and symmetrically onto both seating surfaces inside and the double Two-sided leak-proof conditions are created. 20 O-rings (17) located on the piston (16) relieve the pressure in the piston (16) chamber. The force created by preventing it from escaping is entirely on the wedge (15) It ensures transmission. The gasket (18) and the top gasket (19) work together with the o-ring (17). The piston (16) ensures the integrity of the sealing of the pressing system under all operating conditions. This multi-layered sealing structure protects the valve from fluid pressure of 25°C. It enables it to function reliably, regardless of its nature. In order to prevent external leaks that may occur around the shaft (5), the packing (4), The bottom packing fitting (9) and the packing pressure (10) work in coordination. The packing (4), compressed through the packing bottom fitting (9), is required along the shaft (5). It continuously applies sealing pressure and prevents possible fluid leakage outwards. It prevents smuggling. 9 Rear seat surface (2) and cover (3), first connecting element (11), second connecting element (12), via the third connecting element (13) and the fourth connecting element (14) to the body (1) rigidly connected; this structural integrity is provided by the pressure created by the piston (16). It ensures the safe and lossless transfer of its forces to the hull (1). The invention is an active printing system with piston (16) support, double-sided seal arrangement, full bore body 5 (1) forming a whole with its structure and material selections in industrial pipelines high sealing performance, low pressure loss, reduced torque requirement and long service life providing service life; oil and natural gas pipelines, petrochemical plants, power plants and a reliable and economical solution for applications such as water distribution systems. It offers. 10

Claims

REQUESTS 1. A cylindrical, controlled seal that provides reliable sealing in industrial pipelines. is a gate valve and its features include:  The shell with a full permeable structure through which the fluid passes (1),  The sülüs sits on the surface in the closing position and has a high contact pressure of 5 rear seat surface with geometry to form (2),  Protecting the internal mechanism by closing the upper opening of the body (1) and cover (3) which ensures the maintenance of the system's pressure integrity.  positioned perpendicular to the flow axis inside the shell (1) and flow wedge that opens and closes the path (15), 10  The rotational movement transmitted from the handwheel (8) to the axial movement of the wedge (15) converting shaft (5),  Mounted on the end of the shaft (5) and the valve by applying the operator's rotational force handwheel (8) which performs the opening and closing operations,  Fluid leaks that may occur outwards around the mil (5) 15 to prevent packing (4),  The carrier that provides the direction and support of the rotational movement (6),  The bearing nut (7) which converts the rotational motion into axial motion,  with sufficient pressure force in the direction perpendicular to the axis of the packing group (4) under-seal fitting (9) to ensure compression, 20  ensures the continuous and balanced transmission of compressive pressure packing pressure (10),  located inside the body (1) and an equal and symmetrical addition on the wedge (15) Piston (16) that provides double-sided sealing by applying axial force.  positioned on the piston (16) and the pressure in the piston chamber (16) is 25 The elastomer structure o-ring (17) which ensures lossless transmission,  forming a double-sided sealing barrier between the piston (16) and the wedge (15) gasket (18),  upper seal (19) which ensures sealing stability in the upper region of the system It includes. 30 2. A gate valve conforming to Claim 1, with the feature that the cover (3) and the rear seat surface (2) rigid connection to the body (1) and the pressure created by the piston (16) 11 The first connecting element (11) to ensure that the forces are transferred to the body (1), second connecting element (12), third connecting element (13) and fourth connecting element It contains element (14).

3. A gate valve conforming to claim 1 or 2, with the characteristic of being resistant to high pressure according to ASTM standards. A216 WCB steel alloy, high corrosion resistance ASTM A351 CF8M stainless steel 5 from a material selected from a group consisting of steel and nickel-based Inconel 625 alloy The product contains a body (1).

4. A gate valve that meets any of the previous requirements and whose characteristic is that its surfaces Selected from a group of techniques consisting of tungsten carbide coating and hard chrome plating. It contains a piston (16) which is reinforced with at least one coating. 10 5. A gate valve suitable for any of the previous requirements, and its features include; PTFE, NBR and A gasket made from a material selected from a group of graphite-reinforced metal gaskets. (18) and top seal (19).

6. A gate valve suitable for any of the previous requirements, with the characteristic of being high temperature. 15 made of materials resistant to harsh conditions and aggressive chemical fluids It contains a packing (4).

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