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A heating valve control system and segmental control method thereof

A valve control, heating system technology, applied in heating systems, central heating components, central heating sensors, etc., can solve problems such as temperature control lag

Active Publication Date: 2021-05-18
SHANDONG HEGUANG SMART ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, it solves the problem of temperature control hysteresis under conventional heating conditions, so as to save energy

Method used

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  • A heating valve control system and segmental control method thereof
  • A heating valve control system and segmental control method thereof
  • A heating valve control system and segmental control method thereof

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Embodiment Construction

[0046] In order to better understand the present invention, the specific implementation manners of the present invention will be explained in detail below in conjunction with the accompanying drawings and application examples.

[0047] The original PID adjustment mode is a single valve opening range, the formula used is as follows, and the control graph is as follows image 3 :

[0048]

[0049] u (t) : Regulator output signal

[0050] e(t): deviation signal

[0051] k P : Scale factor

[0052] I τ :Integration time

[0053] T D : Derivative time

[0054] That is to say, no matter what the water supply temperature is, the upper and lower deviations of its adjustment are the same fixed value, and the valve adjustment range will be large, and the adjustment period will be long, resulting in a lag in temperature control.

[0055] A heating valve control system and a segmented control method provided by the present invention divide the water supply temperature into stag...

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Abstract

The invention discloses a heating valve control system and a segmented control method thereof. The water supply temperature is divided into stages, and different valve opening ranges are set in each stage; according to the original control system and the existing PID adjustment mechanism, the The PID adjustment mode is adjusted so that the fluctuation range of the valve opening changes according to the change of the supply water temperature range. By controlling the opening range of the actuator under different temperature conditions, the regulation cycle of the actuator can be reduced, thereby overcoming the shortcomings of excessive regulation range and untimely regulation, reducing the failure of the actuator and prolonging the life of the actuator. On the other hand, it solves the problem of temperature control hysteresis under conventional heating conditions, so as to achieve the purpose of saving energy.

Description

technical field [0001] The invention belongs to the field of urban heating, in particular to a heating valve control system and a segmented control method thereof. Background technique [0002] The urban central heating system has been constructed and applied in the northern cities of our country for several years. The electric actuator has been more and more widely used in the adjustment process. The electric actuator receives the analog signal (generally 4-20mA current signal) from the regulator or the digital signal of the host computer, and converts it into an electric actuator. Corresponding mechanical displacement (angle, straight line or multi-turn) and automatically changing the operating variable (regulating valve opening) to achieve the purpose of automatically adjusting the adjusted parameter (temperature), so that the production process can be carried out according to the predetermined requirements, and the electric execution The device generally uses an electri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24D19/10
CPCF24D19/1033F24D2220/0271F24D2220/04
Inventor 李剑辉王童韩洪森朱利峰秦齐杨文坤张智新
Owner SHANDONG HEGUANG SMART ENERGY TECH CO LTD
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