Bidirectional two-line intelligent valve

An intelligent valve, electro-hydraulic proportional valve technology, applied in valve details, valve device, valve operation/release device, etc., can solve the problems of increased system cost, complex network topology, increased conduction lines, etc., to achieve convenient installation and maintenance. , The effect of simplifying the connection structure and improving the reliability

Inactive Publication Date: 2004-01-07
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the expansion of the entire control system scale and the complexity of the network structure, if the lead-out lines of each valve are directly connected to the controller, it will inevitably lead to a large increase in the conduction lines, and the network topology of the connections will become increasingly complex; and long-distance wiring, Crossover wiring, power and information mixed wiring also bring many problems to installation, commissioning, maintenance, especially reliability, and the cost of the system will also increase

Method used

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  • Bidirectional two-line intelligent valve
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  • Bidirectional two-line intelligent valve

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Embodiment Construction

[0030] Such as figure 1 , figure 2 , image 3 As shown, it includes sensor module 1, MCU and CEBUS interface module 2, power amplification module 3, power and signal conversion module 4, electro-hydraulic proportional valve 5 composed of valve body and proportional electromagnet, and its structure is as follows:

[0031] 1) Sensor module 1: various general sensor modules;

[0032] 2) MCU and CEBUS interface module 2: including main processor 2.1, network interface controller 2.2, receiving and input filter 2.3, power line coupling component 2.4, output pre-filter 2.5; main processor 2.1 communicates with upper computer 6, sensor respectively Module 1 is connected through a 5-wire serial peripheral to connect SP1's data input SDI, data output SDO port, P1 data clock clock SCLK port, chip select signal CS port, interrupt signal INT port, reset signal RST port and network interface The controller 2 is connected, and the TS port and SO port of the network interface controller ...

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Abstract

A bidirectional two-line intelligent valve is composed of sensor module, MCU and CEBUS interface module, power amplifier module, power and signal converting module, and electro-hydraulic proportional valve consisting of valve body and proportional electromagnet. Two power transmission lines are used also to transmit the status information of the valve. A microprocessor is contained in the control module for intelligent control. Its advantages are simple interface, low cost and high reliability.

Description

technical field [0001] The invention relates to an electro-hydraulic proportional valve of electromechanical integration, in particular to a two-way two-wire intelligent valve. Background technique [0002] Various electro-hydraulic valves are an important type of actuator, and it is of great significance to ensure their safe and stable operation. Therefore, it is necessary to monitor the operating status of the valve in real time, dynamically set parameters, and alarm and make corresponding emergency treatment in case of failure. . [0003] Existing integrated valves with electromechanical integration generally use detection devices installed in the valve, such as displacement sensors, induction coils, acceleration sensors, etc. to extract information. The signal transmission is generally transmitted to the remote controller through 2 signal lines in the form of RS232 or RS485. Plus 2 power lines, generally there are at least 4 connections between ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
Inventor 李伟李伟波
Owner ZHEJIANG UNIV
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