Integral flow and temperature control device

Abstract

An integral flow and temperature control device comprises an electric ball valve, an interpolated digital temperature measuring device, a flow measuring device and an integral control circuit board which are fixedly integrated and packaged in a casing. Loose joints with diameter equal to that of external pipes are arranged at two ends of the integral flow and temperature control device, and accordingly the integral flow and temperature control device is flexible, convenient and fast in connection. The integral flow and temperature control device is subjected to data exchange with a main controller and supplied with power through a bus, can complete functions of temperature collection and flow PID(proportion, integration and differentiation) regulation and the like, can complete flow regulation once the main controller outputs a specific flow rate, has excellent stability in control (floating control / proportion control), guarantees stability and accuracy of cooling water flow, and further controls concentrate temperature and stress, and guarantees engineering quality and progress.

Description

technical field [0001] The invention relates to an integrated water flow and temperature control device, referred to as an integrated flow temperature control device, in particular to an integrated flow temperature control device for temperature collection, flow collection and control in large-volume concrete water heat exchange. Background technique [0002] The temperature stress of mass concrete in large-scale hydropower projects involves the risk of dam cracking, and its development process can be divided into three stages: (1) Early stress, starting from the pouring of concrete and ending when the heat release of cement basically ends, generally about one month or so. This stage has two characteristics: one is that a large amount of heat of hydration is emitted due to cement hydration, which causes a sharp change in the temperature field; the other is that the elastic modulus of concrete changes sharply with time; From the time when the exothermic effect is basically o...

AI Technical Summary

Problems solved by technology

It solves the shortcomings of manual measurement record and control that require a lot of labor, backward means, poor precision, low efficiency, low data reliability, long collection time interval, slow information feedback, etc., saves time and effort, and has high accuracy and efficiency of measurement data and feedback Rapid, can adjust concrete temperature control measures in time, avoid concrete cracks, and ensure project quality and progress

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