Multi-dimensional adjustable switch valve position feedback fixing kit

Abstract

Multi-dimensional adjustable switch valve position feedback fixing kit relates to fixing device, the utility model installs on the valve cylinder, including upper connecting piece and lower connecting piece, lower connecting piece is fixed on the valve cylinder, upper connecting piece is installed on lower connecting piece, the utility model discloses realize accurate positioning and adjustment: through slide rail mechanical structure, make feedback device can carry out multi-dimensional fine position adjustment relative to valve movement part, ensure trigger point and valve actual open / close position accurate alignment, enhance adaptability and compatibility: design flexible slide rail, can adapt to various common brand and model valve, actuator and different types of feedback device, improve environmental tolerance: support itself adopts corrosion -resistant material to make, and support material thickness should not be less than 3mm, cooperate with the antiskid nut, effectively resist vibration, corrosion, protect feedback device reliable action.

Description

Technical Field

[0001] This utility model relates to a disassembly device, and more particularly to a multi-dimensional adjustable switch valve position feedback fixing kit that is highly adaptable and compatible and easy to adjust. Background Technology

[0002] In modern chemical production, valves are one of the most critical fluid control components. The valve status information (fully open, fully closed, or faulty) is the basis for process control systems (DCS / PLC / SIS) to make logical judgments, interlock protection, process switching, and equipment start-up and shutdown.

[0003] To obtain the valve's open / close position signal, a position feedback device is typically installed on the valve body or its actuator (such as a pneumatic or electric actuator). However, in harsh chemical application environments, currently available feedback devices installed on valves or actuators have the following drawbacks: 1. Space constraints: Valves and actuators have a compact structure, especially in areas with large-diameter valves or multiple valves arranged together, where there may not be enough native mounting surface or space to directly accommodate standard feedback devices.

[0004] 2. Poor adaptability: Valves and actuators of different brands, models and sizes have huge structural differences, and standard feedback devices are difficult to be directly compatible with all types.

[0005] 3. Difficult to adjust: Slight deviations in the valve's open / closed position may lead to false alarms or missed alarms. The trigger point of the feedback device requires fine adjustment to accurately correspond to the actual fully open / fully closed position of the valve. Direct installation may be difficult to achieve or inconvenient to adjust.

[0006] 5. Inconvenient maintenance: Feedback devices installed in complex locations or lacking dedicated support are very difficult to inspect, calibrate, and replace, increasing maintenance time and costs, and may even require equipment shutdown.

[0007] Therefore, in order to solve the problem of universality in matching valve position feedback devices with cylinders in current chemical plants, it is necessary to invent a broad-spectrum valve position feedback fixing kit. Summary of the Invention

[0008] The present invention aims to solve the problem of universality in matching valve position feedback devices with cylinders in chemical plants, and provides a multi-dimensional adjustable switch valve position feedback fixing kit with strong adaptability and compatibility and convenient adjustment.

[0009] This utility model relates to a multi-dimensional adjustable switch valve position feedback fixing kit, which is installed on a valve cylinder. The fixing kit comprises an upper connector and a lower connector, with the lower connector fixed to the valve cylinder and the upper connector mounted on the lower connector. The upper connector includes an upper connecting piece and a mounting piece. The upper connecting piece is vertically positioned, and the mounting piece is horizontally positioned. The upper connecting piece is perpendicular to the mounting piece. The upper connecting piece has two parallel straight grooves, which are symmetrically arranged around the center line of the upper connecting piece. The width of the mounting piece is half the width of the upper connecting piece. The mounting piece is welded to the top of the upper connecting piece and located on one side of the upper connecting piece. The long edge of the mounting piece is flush with the wide edge of the upper connecting piece. A straight groove is provided at the center line of the mounting piece. The lower connector includes a lower connecting piece and a fixing piece. The lower connecting piece is vertically positioned, and the fixing piece is horizontally positioned. The lower connecting piece is perpendicular to the fixing piece. The lower connecting piece has two parallel straight grooves, which are symmetrically positioned with the center line of the lower connecting piece as the center, and their positions correspond to the straight grooves of the upper connecting piece. The fixing piece has three straight grooves, two horizontal and one vertical. The vertical straight groove is located at the front end of the fixing piece, close to the lower connecting piece, and parallel to the lower connecting piece. The two horizontal straight grooves are located at the rear end of the fixing piece, symmetrically positioned with the center line of the fixing piece as the center. Two sets of lower connecting parts are symmetrically installed on the valve cylinder. The two lower connecting pieces face inward, and the two fixing pieces face inward. Bolts fix the fixing pieces to the valve cylinder through the horizontal and vertical straight grooves on the lower connecting pieces. Two sets of upper connecting parts are placed alternately on the two sets of lower connecting parts. The two upper connecting pieces are located on the outside of the two lower connecting pieces respectively, and the two mounting pieces are located between the two lower connecting pieces. Bolts are tightened and fixed by passing through the straight grooves of the upper connecting pieces and the lower connecting pieces.

[0010] This utility model's multi-dimensional adjustable switch valve position feedback fixing kit successfully solves the defects of all existing brackets on the market, such as poor adaptability, difficulty in adjustment, inconvenient maintenance, and inflexible assembly; its core function is: 1. Achieve precise positioning and adjustment: Through the slide rail mechanical structure (such as adjustable linkage), the feedback device can perform multi-dimensional (X, Y, Z direction) fine position adjustment relative to the valve moving parts (usually valve stem or actuator output shaft), ensuring that the trigger point is precisely aligned with the actual open / closed position of the valve; 2. Enhanced adaptability and compatibility: The flexible slide rail design allows it to adapt to various common brands and models of valves, actuators, and different types of feedback devices; 3. Enhanced environmental resistance: The bracket itself is made of corrosion-resistant materials (such as 316L stainless steel), and the thickness of the bracket material should not be less than 3mm. With the help of anti-slip nuts, it can effectively resist vibration and corrosion and protect the reliable operation of the feedback device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the upper connector structure.

[0013] Figure 3 This is a schematic diagram of the lower connector structure.

[0014] The components include: upper connector 1, lower connector 2, upper connecting piece 3, mounting piece 4, lower connecting piece 5, and fixing piece 6. Detailed Implementation

[0015] Example 1: A multi-dimensional adjustable switch valve position feedback fixing kit, installed on a valve cylinder, is made of 316L stainless steel and includes an upper connector and a lower connector. The lower connector is fixed to the valve cylinder, and the upper connector is installed on the lower connector. The upper connector includes an upper connecting piece and a mounting piece. The upper connecting piece is vertically positioned, and the mounting piece is horizontally positioned. The upper connecting piece is perpendicular to the mounting piece. The upper connecting piece has two parallel straight grooves, which are symmetrically arranged around the center line of the upper connecting piece. The width of the mounting piece is half the width of the upper connecting piece. The mounting piece is welded to the top of the upper connecting piece and located on one side of the upper connecting piece. The long edge of the mounting piece is flush with the wide edge of the upper connecting piece. A straight groove is provided at the center line of the mounting piece. The lower connector includes a lower connecting piece and a fixing piece. The lower connecting piece is vertically positioned, and the fixing piece is horizontally positioned. The lower connecting piece is perpendicular to the fixing piece. The lower connecting piece has two parallel straight grooves, which are symmetrically positioned with the center line of the lower connecting piece as the center, and their positions correspond to the straight grooves of the upper connecting piece. The fixing piece has three straight grooves, two horizontal and one vertical. The vertical straight groove is located at the front end of the fixing piece, close to the lower connecting piece, and parallel to the lower connecting piece. The two horizontal straight grooves are located at the rear end of the fixing piece, symmetrically positioned with the center line of the fixing piece as the center. Two sets of lower connecting parts are symmetrically installed on the valve cylinder, with the two lower connecting plates facing inward and the two fixing plates facing inward. Bolts are used to fix the fixing plates to the valve cylinder through the horizontal and vertical straight grooves on the lower connecting plates. Two sets of upper connecting parts are placed alternately on the two sets of lower connecting parts, with the two upper connecting plates located on the outside of the two lower connecting plates respectively, and the two mounting plates located between the two lower connecting plates. Bolts are tightened through the straight grooves of the upper and lower connecting plates. The valve stem or actuator is installed in the straight groove of the mounting plate by bolts.

[0016] The horizontal straight groove on the fixing plate and the straight groove on the mounting plate provide X-axis displacement adjustment, the vertical straight groove on the fixing plate provides Y-axis displacement adjustment, and the straight grooves on the upper connecting plate and the lower connecting plate provide Z-axis displacement adjustment.

[0017] Assemble and secure the two upper connecting parts. Install the two lower connecting parts on the top plane of the actuator cylinder and tighten them appropriately for later adjustment. Referring to the valve position feedback box installation technical requirements, align the feedback box's central axis with the actuator's central axis and secure it firmly. Adjust the connecting screws on both sides according to the height of the valve position feedback box and the actuator. Using the feedback box's central axis being perpendicular to the actuator's horizontal plane and securely engaged as the standard, tighten the bolts to complete the feedback box bracket assembly installation.

Claims

1. A multi-dimension adjustable on-off valve position feedback fixing kit, installed on a valve cylinder, characterized in that The fixing kit includes an upper connector and a lower connector. The lower connector is fixed to the valve cylinder, and the upper connector is mounted on the lower connector. The upper connector includes an upper connecting piece and a mounting piece. The upper connecting piece is vertically positioned, and the mounting piece is horizontally positioned. The upper connecting piece is perpendicular to the mounting piece. The upper connecting piece has two parallel straight grooves, which are symmetrically arranged around the center line of the upper connecting piece. The width of the mounting piece is half the width of the upper connecting piece. The mounting piece is welded to the top of the upper connecting piece and located on one side of the upper connecting piece. The long edge of the mounting piece is flush with the wide edge of the upper connecting piece. A straight groove is provided at the center line of the mounting piece. The lower connector includes a lower connecting piece and a fixing piece. The lower connecting piece is vertically positioned, and the fixing piece is horizontally positioned. The lower connecting piece is perpendicular to the fixing piece. The lower connecting piece has two parallel straight grooves, which are symmetrically positioned with the center line of the lower connecting piece as the center, and their positions correspond to the straight grooves of the upper connecting piece. The fixing piece has three straight grooves, two horizontal and one vertical. The vertical straight groove is located at the front end of the fixing piece, close to the lower connecting piece, and parallel to the lower connecting piece. The two horizontal straight grooves are located at the rear end of the fixing piece, symmetrically positioned with the center line of the fixing piece as the center. Two sets of lower connecting parts are symmetrically installed on the valve cylinder. The two lower connecting pieces face inward, and the two fixing pieces face inward. Bolts fix the fixing pieces to the valve cylinder through the horizontal and vertical straight grooves on the lower connecting pieces. Two sets of upper connecting parts are placed alternately on the two sets of lower connecting parts. The two upper connecting pieces are located on the outside of the two lower connecting pieces respectively, and the two mounting pieces are located between the two lower connecting pieces. Bolts are tightened and fixed by passing through the straight grooves of the upper connecting pieces and the lower connecting pieces.

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