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Method for automatically controlling water temperature of circulating water in winter

An automatic control system and circulating water technology, applied in lighting and heating equipment, heat exchange equipment, etc., can solve the problems of lack of control equipment, unstable circulating water outlet temperature, and insufficient cooling of circulating water temperature, so as to achieve constant temperature and prevent The effect of upstream wind

Pending Publication Date: 2021-10-15
张家港盈鼎气体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, most of the existing circulating water temperature control equipment only adopts the method of water inlet temperature detection in actual use. The water temperature is unstable, and there is also a lack of corresponding control equipment, which leads to the problem that the cooling of the circulating water temperature is not stable enough

Method used

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  • Method for automatically controlling water temperature of circulating water in winter

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Comparison scheme
Effect test

Embodiment 1

[0027] An automatic water temperature control method for circulating water in winter. The automatic water temperature control system includes a motor unit control system and an air intake volume control system. Both the motor unit control system and the air intake volume control system are installed in the main controller. The sensor, the water temperature sensor of the drain pipe, the main controller, the frequency converter and the motor unit are composed, and the air intake volume control system is composed of the wind speed and direction detector, the main controller, the sub-controller and the servo motor.

[0028] The control system of the motor unit can measure the water temperature in the circulating water inlet and the circulating water outlet respectively, and upload the temperature data to the main controller. The water temperature is compared with the set temperature range, and feedback is made according to the calculation and comparison results, and the signal is t...

Embodiment 2

[0031] The water temperature sensor of the water inlet pipe and the water temperature sensor of the drain pipe are respectively installed at the position of the circulating water inlet and the position of the circulating water outlet;

[0032] The water temperature sensor of the water inlet pipe and the water temperature sensor of the drain pipe are used to respectively detect the water temperature of the circulating water inlet and the circulating water outlet, and upload the detected values ​​to the main controller.

[0033] The main controller receives the data uploaded by the water temperature sensor of the water inlet pipe and the water temperature sensor of the drain pipe. The main controller compares the water temperature of the circulating water inlet and the water temperature of the circulating water outlet, calculates the cooling efficiency and compares the water temperature setting value of the circulating water outlet;

[0034] The main controller transmits signals ...

Embodiment 3

[0039] The wind speed and direction detector is installed at the air inlet of the fan unit, used to detect the wind speed and wind direction of the external environment of the air inlet, and feed back the signal to the main controller;

[0040] The servo motor is installed inside the air inlet, and the motor shaft of the servo motor is rotationally connected with the blades at the opening of the air inlet for the servo motor to drive the rotation of the blades.

[0041]The wind speed and direction detector can detect the wind speed and wind direction of the external environment at the air inlet, and control the rotation of the blades on the inner wall of the air inlet through the servo motor, which can flexibly change the distance between the blades, change the air intake volume of the air inlet, and prevent airflow Backflow wind is generated inside the tuyere.

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Abstract

The invention discloses a method for automatically controlling the water temperature of circulating water in winter. A system for automatically controlling the water temperature comprises a motor set control system and an air inlet amount control system which are both carried in a main controller; the motor set control system comprises a water inlet pipe water temperature sensor, a water outlet pipe water temperature sensor, a main controller, a frequency converter and a motor set; the air inlet amount control system comprises an air speed and direction detector, a main controller, a branch controller and a servo motor; the water inlet pipe water temperature sensor and the water outlet pipe water temperature sensor are installed at a circulating water inlet and a circulating water outlet respectively; and the air speed and direction detector is installed at an air inlet of a fan set. The cooling efficiency of the circulating water is controlled through the motor set control system, the air inlet amount is adjusted through cooperation with the air inlet amount control system, the more flexible cooling effect is achieved, and the cooling water temperature of the circulating water is more stable.

Description

technical field [0001] The invention relates to the technical field of circulating water temperature control, in particular to a method for automatically controlling the temperature of circulating water in winter. Background technique [0002] Circulating water cooling systems are widely used in various fields such as chemical industry, metallurgy, and power generation. According to the temperature changes in different seasons, it is necessary to refine the control indicators of circulating water temperature in order to meet the operational needs of production equipment. At present, the temperature control of the circulating water system generally uses multiple fans, and the fans are equipped with power frequency motors. When the temperature is low in winter, the controller judges whether the fan needs to keep running according to the change of water temperature, and performs manual start and stop operation. The temperature control is unstable and fluctuates greatly, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F27/00
CPCF28F27/00
Inventor 焦迟林何伟张鑫鑫薛强
Owner 张家港盈鼎气体有限公司
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