Intelligent reactor inlet pressure adjusting system and control method thereof

A technology of inlet pressure and intelligent adjustment, applied in the direction of electric fluid pressure control, etc., can solve the problems of slow response speed of the adjustment device, long time required for stabilization, increased maintenance difficulty, etc., to achieve good adjustment performance, short time, and design Set convenient and quick effect

Active Publication Date: 2015-01-07
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The structure is complex, mostly mechanical structure and analog structural components, which are large in size and heavy in weight, and are easily damaged during use, which increases the difficulty of maintenance;
[0005] (2) Sliding pointer operation and display are used, and there is a certain indication error;
[0007] (4) The control parameters are set manually. It needs to be set by adjusting the potentiometer to find a set of suitable parameter values. This requires rich engineering experience and many tests to succeed. It is time-consuming and labor-intensive, and the parameters are certain. A set of fixed values ​​under one working condition. When the on-site operating conditions change, parameter settings need to be re-set;
[0008] (5) The response speed of the adjustment device is slow, and overshoot is prone to occur during the adjustment process, and it takes a long time to achieve stability

Method used

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  • Intelligent reactor inlet pressure adjusting system and control method thereof
  • Intelligent reactor inlet pressure adjusting system and control method thereof
  • Intelligent reactor inlet pressure adjusting system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Such as figure 1 , figure 2 , image 3 shown.

[0057] Reactor inlet pressure intelligent adjustment system,

[0058] Including the pressure transmitter installed on the reactor inlet main pipe, the I / V conversion connected with the pressure transmitter, the intelligent controller connected with the I / V conversion, the electric / gas converter connected with the intelligent controller, and the The pneumatic valve connected to the electric / gas converter is installed on the outlet main pipe of the reactor;

[0059] The pressure transmitter is used to detect the pressure inside the reactor inlet main pipe and feed back the pressure signal to the I / V conversion,

[0060] I / V conversion converts the pressure signal in the form of current into a pressure signal in the form of voltage and transmits it to the intelligent controller.

[0061] The intelligent controller makes logic operations according to the pressure setting value and the input pressure signal, and then outp...

Embodiment 2

[0088] Such as figure 1 , figure 2 , image 3 , the control method of the above reactor inlet pressure intelligent regulation system,

[0089] Include the following steps:

[0090] A. Sampling step: Sampling and processing the pressure in the reactor inlet main pipe through a pressure transmitter and I / V conversion;

[0091] B. Signal processing steps: Calculate e(k) and ec(k) through the intelligent controller according to the pressure sampling data and pressure setting value, and judge whether e(k) and ec(k) exceed the limit, when e(k ) and ec(k) do not exceed the limit, directly fuzzy e(k) and ec(k) into E and EC, when e(k) and ec(k) exceed the limit, e(k) and ec (k) After setting the upper limit or lower limit, perform fuzzy processing to E and EC, perform fuzzy reasoning on E and EC, and solve the model to calculate △Kp, △Ki, △Kd, and correct the current Kp, Ki After , Kd, ​​perform PID calculation, and output the calculation result. After performing PID calculation...

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Abstract

The invention discloses an intelligent reactor inlet pressure adjusting system and a control method thereof. According to the intelligent reactor inlet pressure adjusting system, a pressure transmitter is used for detecting the pressure in a reactor inlet mother pipe and feeds pressure signals back to an I / V conversion part, the I / V conversion part transmits the pressure signals to an intelligent controller, the intelligent controller outputs control current signals to an electric / pneumatic converter according to the pressure set value and the input pressure signals, the electric / pneumatic converter converts the control current signals into corresponding air pressure signals, and a pneumatic valve achieves the appropriate aperture according to the corresponding air pressure signals. Running is stable and reliable. The system is good in adjusting performance, the response time, overshoot, the oscillation number, the adjustment time and other performance meet the requirements, and the anti-disturbance capacity is obviously improved.

Description

technical field [0001] The invention relates to a technology for intelligently adjusting the inlet pressure of a reactor, and belongs to the field of automatic control. Background technique [0002] The reactor inlet pressure regulating device of HEFTR (High Flux Engineering Test Reactor) is used to adjust the reactor inlet pressure. The device compares the measured value of the reactor inlet pressure with the operating set value, and outputs the deviation to control the action of the actuator. , to adjust the reactor inlet pressure to stabilize the reactor inlet pressure at the set value and ensure the safe operation of the reactor. [0003] The reactor inlet pressure regulating device of HFETR originally used the analog regulating method. According to years of use experience, in fact, it is not necessarily possible to achieve rapid adjustment of the reactor inlet pressure, and the anti-disturbance ability of the adjustment device is poor, and the adjustment effect is not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D16/20
Inventor 李普武文超葛源李子彦徐兵邹德光蒋波林建华陆星李林洪
Owner NUCLEAR POWER INSTITUTE OF CHINA
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