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Increased safety control device of safety valve and state monitoring and evaluation method

A technology of control devices and safety valves, applied in valve devices, visible signal devices, signal devices, etc., can solve problems such as main valve opening failure failure, high experience and quality requirements, well flooding accidents, etc., to ensure pipeline safety , avoid the effect of redundant data

Active Publication Date: 2020-08-21
西安普特流体控制有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, its pilot valve is more sensitive to impurities in the fluid medium. When impurities block the passage of the pilot valve, the main valve will fail to open, and when weeds block the main valve port of the pilot safety valve, it will cause the safety valve to leak. flooding accident
Secondly, the pilot-operated safety valve has high requirements for the experience and quality of the commissioning personnel. The spring tension force of the pilot valve is not set properly, which will cause the main valve to fail to open and release pressure under dangerous high pressure.
In addition, the conventional RTU acquisition and transmission unit can only do data timing or timing acquisition and transmission of more than 1 second, and cannot provide continuous opening status and The precise collection, storage and transmission mechanism of the pressure makes it impossible to observe the protective effect of the pilot-operated safety valve, and proposes the effectiveness evaluation and adjustment of the performance of the safety valve

Method used

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  • Increased safety control device of safety valve and state monitoring and evaluation method
  • Increased safety control device of safety valve and state monitoring and evaluation method
  • Increased safety control device of safety valve and state monitoring and evaluation method

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: An increased safety control device for a pilot-operated safety valve, including a pilot-operated safety valve 1, a power supply 2, a state detection module 3, a solenoid valve 4, a pressure sensor 5, an increased safety controller 6, an antenna 13 and a remote terminal 14 compositions. The safety-increasing controller 6 includes an MCU module 7 that is packaged in a waterproof casing, and is preset with a logic processing program. The circuit board is connected with an LED fault light 8, a memory card 9, a communication module 10, a human-computer interaction module 11 and a GPS module 12. .

[0033] Exemplarily, the state detection module 3 is specifically a double-stroke switch assembly, which can provide switching signals of the opening and maximum opening of the pilot safety valve 1 .

[0034] Exemplarily, the communication module 10 in the increased safety controller 6 is specifically a wireless module or a 4G communication transmission module, which...

Embodiment 2

[0044] Embodiment 2: An increased safety control device for a pilot-operated safety valve, including a pilot-operated safety valve 1, a power supply 2, a state detection module 3, a solenoid valve 4, a pressure sensor 5, an increased safety controller 6, a wired network 15 and a remote The terminal 12 is composed. The safety-increasing controller 6 includes an MCU module 7 packaged in a waterproof case with a preset logic processing program, a human-computer interaction module 8 , a memory card 9 and a communication module 10 connected by a circuit board.

[0045] Exemplarily, the state detection module 3 is specifically an opening sensor, which can continuously provide an analog signal of the opening of the safety valve.

[0046] Exemplarily, the communication module 10 in the increased safety controller 6 is specifically an industrial communication module, which can realize data transmission and information classification alarm between the increased safety controller 6 and t...

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Abstract

The invention relates to an increased safety control device of a safety valve and a state monitoring and evaluation method. The increased safety control device of the safety valve comprises a pilot operated safety valve and an increased safety controller, the pilot operated safety valve is additionally provided with a pressure sensor, a state detection module and an electromagnetic valve, and theadded three parts are all connected with the increased safety controller through circuits; and the increased safety controller comprises an MCU module with a preset logic processing program, and the MCU module is connected with a GPS module, a communication module, a memory card, a man-machine interaction module and a fault LED lamp. When the MCU module collects that the change value of the pressure in unit time is larger than a program set threshold value, the pressure change value and the safety valve state change are recorded in the set time. A remote terminal carries out graphical processing on the pressure and opening and closing state process, and diagnosis, evaluation and improvement on opening pressure setting, closing speed and pressure relief capability by checking an opening pressure relief time node, a maximum opening degree time node and switching frequency characteristics.

Description

technical field [0001] The invention relates to fluid conveying pipelines and pressure equipment, in particular to a safety increasing control device for a safety valve and an effectiveness monitoring and evaluation method. Background technique [0002] Safety valves are commonly used pressure safety protection devices on fluid conveying pipelines and pressure equipment. They are mainly divided into two types: spring direct-acting safety valves and pilot-operated safety valves. Spring direct-acting safety valves are prone to secondary damage due to their quick opening and closing. Disadvantages of closed valve water hammer are mainly used for small liquid pipelines and gas or steam transmission pipelines and devices. The pilot-operated safety valve is an improved type developed on the basis of the spring direct-acting safety valve. The safety valve controls the opening and closing of the main valve through a pilot valve. It has the advantage of being closed, and has a bette...

Claims

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Application Information

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IPC IPC(8): F16K37/00G08B5/36
CPCF16K37/0075F16K37/0083F16K37/0091G08B5/36
Inventor 金波
Owner 西安普特流体控制有限公司
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