Electric ball valve health diagnosis device

Abstract

The utility model relates to an electric ball valve health diagnosis device, which comprises a data acquisition unit, an arithmetic unit, a database and an indicating lamp, and is characterized in that the data acquisition unit is connected with an electric ball valve and is used for acquiring operation times of the electric ball valve and pressure data of a front cavity, a middle cavity and a rear cavity of the ball valve as parameters for analyzing performance characteristics of the ball valve; the arithmetic unit is connected with the data acquisition unit and the database and is used for comparing and analyzing the parameters of the performance characteristics corresponding to the health state of the electric ball valve in the database with the acquired parameters of the performance characteristics of the electric ball valve and obtaining a health state conclusion of the electric ball valve; the arithmetic unit is connected with the indicating lamp and used for representing the performance of the electric ball valve through the indicating lamp. According to the corresponding relation between the number of operation times of the ball valve and sealing performance attenuation, the performance of the electric ball valve is represented through the indicator lamp, relevant contrast information in a database is compared, acquired information is compared and analyzed, and a corresponding conclusion is obtained. And finally evaluating the health state of the valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve devices, and in particular relates to a health diagnosis device for an electric ball valve. Background Art

[0002] The only diagnostic function currently available on electric valves on the market is fault alarms. When a valve fails to operate normally, experiences high torque, or persists for an extended period, the electric actuator issues an alarm, indicating either a fault or a normal condition. The user then performs corrective repairs based on the alarm information. While this method has some practical value, it often requires shutting down the system in which the valve is installed, resulting in significant financial losses.

[0003] This project aims to inform users of valve performance degradation through the research of electric ball valve health diagnostic devices. Under the premise that the valve can operate normally, users can arrange preventive maintenance according to the system operation nodes to improve product efficiency and minimize the cost of use and maintenance.

[0004] The electric ball valve health diagnosis device collects the pressure data and operation times of the ball valve, compares them with the relevant control information in the database, analyzes the collected information, and draws corresponding conclusions. Finally, it gives an evaluation of the valve health status. Summary of the Invention

[0005] This utility model provides a health diagnosis device for an electric ball valve. Based on the corresponding relationship between the number of times the ball valve is operated and the attenuation of the sealing performance, the device characterizes the performance of the electric ball valve through an indicator light, compares the collected information with the relevant control information in the database, and draws corresponding conclusions. Finally, the device evaluates the health status of the valve.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: an electric ball valve health diagnosis device, including a data collector, an operator, a database, and an indicator light. The data collector is connected to the electric ball valve, and is used to collect the number of times the electric ball valve operates and the pressure data of the front, middle and rear chambers of the ball valve as parameters for analyzing the performance characteristics of the ball valve; the operator is connected to the data collector and the database, and is used to compare and analyze the parameters of the performance characteristics corresponding to the health status of the electric ball valve in the database with the parameters of the collected performance characteristics of the electric ball valve, and draw a conclusion on the health status of the electric ball valve; the operator is connected to the indicator light, and is used to characterize the performance of the electric ball valve through the indicator light.

[0007] Furthermore, the main sealing structure of the electric ball valve is composed of two sealing seats and a ball. The two sealing seats divide the interior of the ball valve into three chambers A, B, and C.

[0008] Furthermore, the data collector uses pressure sensors, and the three pressure sensors are respectively arranged in the three chambers A, B, and C of the electric ball valve to collect pressure data of the three chambers A, B, and C of the electric ball valve.

[0009] Furthermore, the indicator light has three colors, wherein a green light represents normal performance; a yellow light represents normal performance but close to failure, prompting the user to perform preventive maintenance; and a red light represents performance failure, prompting the user to perform corrective repairs.

[0010] Furthermore, the operator adopts a PLC or a host computer.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] Based on the corresponding relationship between the number of ball valve operations and the attenuation of sealing performance, this device characterizes the performance of the electric ball valve through indicator lights, compares the collected information with relevant control information in the database, analyzes the collected information, and draws corresponding conclusions. Finally, an evaluation of the valve health status is given. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall principle diagram of the electric ball valve health diagnosis device of the utility model;

[0014] Figure 2 This is the layout diagram of the ball valve and sensor;

[0015] Figure 3 This is a statistical diagram of leakage points in the middle cavity;

[0016] Figure 4 This is a diagram of the user interface of the diagnostic device. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0019] like Figures 1 to 4 As shown, the utility model provides an electric ball valve health diagnosis device, comprising a user interface, a data acquisition unit, an arithmetic unit, a database, and an indicator light. The data acquisition unit is connected to the electric ball valve and is used to collect the number of times the electric ball valve has operated and the pressure data of the front, middle, and rear chambers of the ball valve as parameters for analyzing the ball valve's performance characteristics. The arithmetic unit is connected to the data acquisition unit and the database and is used to compare and analyze the parameters of the performance characteristics corresponding to the electric ball valve's health status in the database with the collected parameters of the electric ball valve's performance characteristics, thereby drawing a conclusion on the electric ball valve's health status. The arithmetic unit is also connected to the indicator light and is used to characterize the performance of the electric ball valve through the indicator light.

[0020] Preferably, the indicator light has three colors, wherein green light represents normal performance; yellow light represents normal performance but close to failure, requiring the user to perform preventive maintenance; and red light represents performance failure, prompting the user to perform corrective repairs.

[0021] Preferably, the main sealing structure of the electric ball valve consists of two sealing seats and a ball. Figure 2 As shown, the two sealing seats divide the interior of the ball valve into three chambers: A, B, and C.

[0022] Preferably, the data collector uses a pressure sensor to collect pressure data of the front, middle and rear chambers of the electric ball valve.

[0023] Preferably, the operator adopts a PLC or a host computer.

[0024] The basis for judging the performance degradation of a ball valve is as follows: the main sealing structure of the ball valve consists of two sealing seats and a ball. The two sealing seats divide the interior of the ball valve into three chambers, A, B, and C. When the ball valve is in the closed state, the medium enters from chamber A. When the two sealing seats of the floating ball valve are subjected to the pressure of the medium, the medium pushes the ball to press against the sealing seat at C, so the specific pressure of the sealing seat at C is larger; the medium pushes the ball away from the sealing seat at A, so the specific pressure of the sealing seat at A is smaller, and therefore the sealing seat at A will leak first. When the sealing seat at A begins to leak, the pressure in the middle chamber B will increase. The pressure at the time of the initial increase in pressure is the sealing performance of the sealing seat in chamber A. If chamber C begins to leak, the ball valve seal fails. By studying the changes in the sealing performance of the sealing seat A from the effectiveness to failure of the ball valve chamber C seal, the health status of the ball valve can be characterized.

[0025] Initial state: When the ball valve is closed,

[0026] A cavity applies a dense pressure, PC = PB = 0.

[0027] After a certain number of runs, the PB pressure rises, and the pressure in the B chamber begins to rise when the PA pressure is monitored. And the corresponding numerical relationship.

[0028] After the entire valve fails, cavity A applies a constant pressure and cavity C begins to experience a pressure increase.

[0029] The corresponding relationship between the sealing capacity of the middle cavity and the number of operations can be obtained through the above rules, see Figure 3 The end of the curve represents the beginning of leakage in cavity C at the rear end of the valve (i.e., valve seal failure).

[0030] The utility model provides an electric ball valve health diagnosis device that compares and analyzes the collected information by comparing the relevant control information in the database, draws corresponding conclusions, and finally gives an evaluation of the valve health status.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. An electric ball valve health diagnosis device, characterized by: It includes a data collector, an operator, a database, and an indicator light. The data collector is connected to the electric ball valve to collect the number of times the electric ball valve operates and the pressure data of the front, middle, and rear chambers of the ball valve as parameters for analyzing the performance characteristics of the ball valve; the operator is connected to the data collector and the database to compare and analyze the parameters of the performance characteristics corresponding to the healthy state of the electric ball valve in the database with the collected parameters of the performance characteristics of the electric ball valve, and to draw a conclusion on the healthy state of the electric ball valve; the operator is connected to the indicator light to characterize the performance of the electric ball valve through the indicator light.

2. The electric ball valve health diagnosis device according to claim 1, characterized in that: The main sealing structure of the electric ball valve consists of two sealing seats and a ball. The two sealing seats divide the interior of the ball valve into three chambers: A, B, and C.

3. The electric ball valve health diagnosis device according to claim 2, characterized in that: The data collector uses pressure sensors. Three pressure sensors are respectively set in the three chambers A, B, and C of the electric ball valve to collect pressure data of the three chambers A, B, and C of the electric ball valve.

4. The electric ball valve health diagnosis device according to claim 1, characterized in that: The indicator light has three colors, among which green light represents normal performance; yellow light represents normal performance but close to failure, prompting the user to perform preventive maintenance; red light represents performance failure, prompting the user to perform corrective repairs.

5. The electric ball valve health diagnosis device according to claim 1, characterized in that: The operator adopts PLC or host computer.

Images