A special material flash valve for corrosion resistance and wear resistance in the metallurgical industry

Abstract

This utility model relates to the field of angle valves, specifically a special material flash angle valve for corrosion resistance and wear resistance in the metallurgical industry. It includes a telescopic cylinder for controlling the opening and closing of the valve seat and a pneumatic device for controlling the adjustment of the telescopic cylinder. A valve stem is slidably connected to the valve seat, and a top frame is provided at the upper end of the valve seat. The top protruding part of the valve stem is slidably disposed inside the top frame. A displacement controller is located at the center of the top frame and at the front end of the valve stem. The top of the valve stem is connected to the piston of the telescopic cylinder. Two air holes are provided on one side of the telescopic cylinder, and a pressure chamber is formed inside the telescopic cylinder. This utility model achieves the pneumatic drive speed of the valve stem by utilizing an electromagnetic valve frame air source speed regulator, avoiding excessively fast valve core impact on the valve cavity. By setting up a displacement controller, the valve stem controls the downward displacement distance of the valve core to adjust the material flow and speed. Furthermore, in conjunction with the pneumatically controlled telescopic cylinder, the valve core has a buffering effect when controlled by the valve stem to open and close, avoiding excessive impact on the valve core and affecting the subsequent sealing effect, thereby ensuring safety.

Description

Technical Field

[0001] This utility model relates to the field of angle valves, and in particular to a special material flash angle valve for corrosion resistance and wear resistance in the metallurgical industry. Background Technology

[0002] The metallurgical industry's corrosion-resistant and wear-resistant flash angle valve is a special valve designed for harsh working conditions involving high temperatures, strong corrosion, and solid particles. Its core feature lies in the use of special materials and innovative structures to achieve precise control of flashing and efficient resistance to media erosion. This valve typically uses special materials such as titanium alloys, ceramics, and Hastelloy to manufacture the valve body, valve core, and valve seat. Titanium alloys possess excellent resistance to chloride ion corrosion, while ceramic materials are known for their high hardness and wear resistance, effectively coping with acidic slurries, fluorine-containing media, and high-speed particle erosion. In terms of structural design, the flash angle valve adopts a 90° angle layout with a streamlined or spherical cavity flow channel. Combined with a Venturi seat and multi-stage pressure-reducing sleeves, it guides the flashing zone to the center of the flow channel by progressively distributing the pressure difference, reducing cavitation damage to the valve's inner wall. Furthermore, details such as an extra-large inner cavity, anti-crystallization coating, and hard alloy bushing further enhance the valve's anti-clogging ability and self-cleaning properties.

[0003] In the prior art, compared with the Chinese invention with publication number CN102927299A, a high-pressure hydrogenation reaction special material regulating angle valve is disclosed. It changes the scouring by adopting a 135° inlet and outlet structure. However, it was found in use that the valve structure with quick opening and closing is not ideal for resisting the impact of corrosive fluids and particulate matter in the fluid. Occasionally, it will also cause damage to the valve core and leakage. Utility Model Content

[0004] The purpose of this utility model is to provide a special material flash valve for corrosion resistance and wear resistance in the metallurgical industry in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A special material flash valve for corrosion resistance and wear resistance in the metallurgical industry includes a telescopic cylinder for controlling the opening and closing of the valve seat and a pneumatic device for controlling the adjustment of the telescopic cylinder. A valve stem is slidably connected to the valve seat, and a top frame is provided at the upper end of the valve seat. The top protruding part of the valve stem is slidably disposed inside the top frame. A displacement controller is provided at the center of the top frame and at the front end of the valve stem. The top of the valve stem is connected to the piston of the telescopic cylinder. Two air holes are provided on one side of the telescopic cylinder. A pressure chamber is formed inside the telescopic cylinder. The two corresponding air holes above and below the pressure chamber are respectively connected to the first pressure pipe and the second pressure pipe of the pneumatic device. The pneumatic device is installed on one side of the telescopic cylinder.

[0007] A solenoid valve is installed at the front end of the telescopic cylinder. An air source speed regulator is provided on one side of the solenoid valve. One port of the solenoid valve is connected to the air source speed regulator through a first control pipeline. One port of the air source speed regulator is connected to a pneumatic device through an air pipe. The other port of the solenoid valve is connected to the displacement controller through a second control pipeline. The other port of the displacement controller is connected to the air source speed regulator through a pipeline.

[0008] Preferably, the top frame is connected to the valve seat via a flange.

[0009] Preferably, the first pressure pipe and the second pressure pipe are connected to the telescopic cylinder by threads.

[0010] Preferably, the first control line, the second control line, the first pressure line, the second pressure line, and the air pipe are all made of copper.

[0011] Preferably, pressure gauges are installed on both the displacement controller and the solenoid valve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By utilizing a solenoid valve frame air source speed regulator, the valve stem is pneumatically driven to achieve its speed, preventing the valve core from impacting the valve cavity too quickly. By setting up a displacement controller, the valve stem controls the downward displacement distance of the valve core to adjust the material flow and speed. In conjunction with a pneumatically controlled telescopic cylinder, the valve core has a buffering effect when it is opened and closed by the valve stem, preventing excessive impact on the valve core and affecting the subsequent sealing effect, thereby ensuring safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a special material flash valve for corrosion resistance and wear resistance in the metallurgical industry, as described in this utility model.

[0016] Figure 2 This is a front view of a special material flash valve for corrosion resistance and wear resistance in the metallurgical industry, as described in this utility model.

[0017] Figure 3 This is a schematic diagram of the air source speed regulator structure of a special material flash angle valve for corrosion resistance and wear resistance in the metallurgical industry, as described in this utility model.

[0018] Figure 4This is a schematic diagram of the internal structure of the telescopic cylinder of a flash angle valve made of special material for corrosion resistance and wear resistance in the metallurgical industry, as described in this utility model.

[0019] Figure 5 This is a front view of the solenoid valve of the special material flash angle valve for corrosion resistance and wear resistance in the metallurgical industry described in this utility model.

[0020] Figure 6 This is a schematic diagram of a corrosion-resistant and wear-resistant gas source for the metallurgical industry, as described in this utility model.

[0021] The annotations in the attached figures are explained as follows:

[0022] 1. Valve seat; 2. Valve stem; 3. Top frame; 4. Displacement controller; 5. Solenoid valve; 6. Air source speed regulator; 7. Pneumatic device; 8. Telescopic cylinder; 51. First control pipeline; 52. Second control pipeline; 71. First pressure pipe; 72. Second pressure pipe; 73. Pneumatic head; 74. Protective valve; 75. Hydraulic damping buffer; 81. Piston; 82. Pressure chamber; 9. Filter pressure reducing valve. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-6 As shown, a special material flash valve for corrosion resistance and wear resistance in the metallurgical industry includes a telescopic cylinder 8 for controlling the opening and closing of a valve seat 1 and a pneumatic device 7 for controlling the adjustment of the telescopic cylinder 8. A valve stem 2 is slidably connected to the valve seat 1. A top frame 3 is provided at the upper end of the valve seat 1. The top protruding part of the valve stem 2 is slidably disposed inside the top frame 3. A displacement controller 4 is provided at the center of the top frame 3 and at the front end of the valve stem 2. The top of the valve stem 2 is connected to the piston 81 of the telescopic cylinder 8. Two air holes are provided on one side of the telescopic cylinder 8. A pressure chamber 82 is formed inside the telescopic cylinder 8. The two corresponding air holes on the upper and lower sides of the pressure chamber 82 are respectively connected to the first pressure pipe 71 and the second pressure pipe 72 of the pneumatic device 7. The pneumatic device 7 is installed on one side of the telescopic cylinder 8.

[0027] A solenoid valve 5 is installed at the front end of the telescopic cylinder 8. An air source speed regulator 6 is set on one side of the solenoid valve 5. One port of the solenoid valve 5 is connected to the air source speed regulator 6 through the first control pipeline 51. One port of the air source speed regulator 6 is connected to the pneumatic device 7 through an air pipe. The other port of the solenoid valve 5 is connected to the displacement controller 4 through the second control pipeline 52. The other port of the displacement controller 4 is connected to the air source speed regulator 6 through a pipeline.

[0028] In this embodiment, the top frame 3 is connected to the valve seat 1 via a flange.

[0029] In this embodiment, the first pressure pipe 71 and the second pressure pipe 72 are connected to the telescopic cylinder 8 by threads.

[0030] In this embodiment, the first control pipe 51, the second control pipe 52, the first pressure pipe 71, the second pressure pipe 72, and the air pipe are all made of copper.

[0031] In this embodiment, pressure gauges are installed on both the displacement controller 4 and the solenoid valve 5.

[0032] Working principle:

[0033] The air source is divided into two paths. One path is adjusted and controlled by the positioner 4 to control the air intake flow. The other path is a switch type that is adjusted by the solenoid valve 5 and the air source speed regulator 6 to control the speed of the cylinder piston 81. There are two hydraulic damping buffers 75 above and below the cylinder piston 81 to prevent the valve seat and valve disc from colliding violently. When the main air source is interrupted due to a fault, the position holding valve 74 responds quickly to prevent the air source in the cylinder from being discharged, thereby achieving the protection effect.

[0034] In actual operation, the height of the valve stem 2 is detected by the displacement controller 4 to determine the position of the valve stem 2 and the valve core. When it is necessary to control the opening and closing of the valve, the pressure is regulated by the electro-pneumatic device 7. At this time, the pressure will first reach the solenoid valve 5 through the second control pipeline 52, and after passing through the solenoid valve 5, it will flow back through the first control pipeline 51 to the air source speed regulator 6. Then, it will be connected to the pneumatic device 7 through the two air pipes at the other end of the air source speed regulator 6. During implementation, one branch of the second control pipeline 52 is connected to the displacement controller 4, and the other two branches of the displacement controller 4 are connected to the two output branches of the air source speed regulator 6, so as to cooperate with the displacement controller 4 to detect and control the speed. When the air pressure reaches the pressure chamber 82 inside the telescopic cylinder 8 through the first pressure pipe 71 and the second pressure pipe 72, it controls the air pressure at the upper and lower ends of the piston 81, controls the lifting and lowering of the piston 81, and thus controls the lifting and lowering of the valve stem 2 and the valve core.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A special material flash valve for corrosion resistance and wear resistance in the metallurgical industry, characterized in that: The device includes a telescopic cylinder (8) for controlling the opening and closing of a valve seat (1) and a pneumatic device (7) for controlling the adjustment of the telescopic cylinder (8). A valve stem (2) is slidably connected to the valve seat (1). A top frame (3) is provided at the upper end of the valve seat (1). The top protruding part of the valve stem (2) is slidably disposed inside the top frame (3). A displacement controller (4) is provided at the center of the top frame (3) and at the front end of the valve stem (2). The top of the valve stem (2) is connected to the piston (81) of the telescopic cylinder (8). Two air holes are provided on one side of the telescopic cylinder (8). A pressure chamber (82) is formed inside the telescopic cylinder (8). The two corresponding air holes on the upper and lower sides of the pressure chamber (82) are respectively connected to the first pressure pipe (71) and the second pressure pipe (72) of the pneumatic device (7). The pneumatic device (7) is installed on one side of the telescopic cylinder (8). A solenoid valve (5) is installed at the front end of the telescopic cylinder (8). A pneumatic speed regulator (6) is provided on one side of the solenoid valve (5). One port of the solenoid valve (5) is connected to the pneumatic speed regulator (6) through a first control pipeline (51). One port of the pneumatic speed regulator (6) is connected to a pneumatic device (7) through an air pipe. The other port of the solenoid valve (5) is connected to the displacement controller (4) through a second control pipeline (52). The other port of the displacement controller (4) is connected to the pneumatic speed regulator (6) through a pipeline.

2. The special material flash valve for corrosion resistance and wear resistance in the metallurgical industry according to claim 1, characterized in that: The top frame (3) is connected to the valve seat (1) via a flange.

3. The special material flash valve for corrosion resistance and wear resistance in the metallurgical industry according to claim 1, characterized in that: The first pressure pipe (71) and the second pressure pipe (72) are connected to the telescopic cylinder (8) by threads.

4. The special material flash valve for corrosion resistance and wear resistance in the metallurgical industry according to claim 1, characterized in that: The first control line (51), the second control line (52), the first pressure line (71), the second pressure line (72), and the air pipe are all made of copper.

5. The special material flash valve for corrosion resistance and wear resistance in the metallurgical industry according to claim 1, characterized in that: Pressure gauges are installed on both the displacement controller (4) and the solenoid valve (5).

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