CN-121995972-A - Fluid flow instant regulating and controlling system

CN121995972ACN 121995972 ACN121995972 ACN 121995972ACN-121995972-A

Abstract

A fluid flow instant regulation and control system comprises a valve island, a plurality of return pipelines, a plurality of sensors, a plurality of flow control valves and a control module, wherein the valve island is provided with a flow outlet for receiving fluid output by a fluid source, the flow outlet is used for returning the fluid to the fluid source, the plurality of return pipelines are used for respectively sending the fluid in the flow outlet to a temperature control device to be subjected to temperature control, the plurality of return pipelines are used for respectively sending the fluid sent to the temperature control device to be subjected to temperature control to the flow outlet, the plurality of sensors are respectively connected with the return pipelines, the sensors are respectively capable of sensing the fluid in the corresponding return pipelines to obtain sensing information, the sensing information comprises the temperature and the flow of the fluid, the plurality of flow control valves are respectively connected with the return pipelines, and the control module is connected with the flow control valves and the sensors in a wired or wireless mode and is used for instantly controlling the flow control valves to regulate the flow. Therefore, the device can control and regulate the fluid flow in real time, and achieve the effect of uniform temperature more quickly and accurately.

Inventors

ZENG XIANCONG
LIU KEFU
HUANG SONGYUAN
WANG YINGBIN
QIU JUNDA

Assignees

财团法人精密机械研究发展中心

Dates

Publication Date: 20260508
Application Date: 20241106

Claims (10)

1. A fluid flow instant regulation and control system, comprising: A valve island having a flow-out hole for receiving the fluid outputted from a fluid source, and a flow-back hole for returning the fluid to the fluid source; A plurality of pipeline removing pipes which are communicated with the flow removing holes of the valve island and respectively send the fluid in the flow removing holes to a temperature control device; The return pipelines are communicated with the return holes of the valve island, and respectively return the fluid sent to the equipment to be temperature controlled by the pipeline to the return holes of the valve island; The plurality of sensors are respectively connected with the return pipelines, and each sensor can sense the fluid in the corresponding return pipeline to obtain sensing information, wherein the sensing information comprises the temperature and the flow of the fluid; The flow control valves are respectively connected with the return pipelines and can adjust the flow; and the control module is connected with the flow control valves and the sensors in a wired or wireless way and is used for controlling the flow control valves to adjust the flow in real time.
2. The system of claim 1, wherein the valve island comprises a first valve island and a second valve island, the second valve island being directly or indirectly connected to the first valve island, the first valve island having the flow-out hole, the second valve island having the flow-back hole.
3. The system of claim 1, wherein fluid flows through the sensor before the flow control valve, or fluid flows through the flow control valve before the sensor.
4. The system of claim 1, further comprising a plurality of solenoid valves connected to the respective pipeline, wherein the solenoid valves are wired or wireless connected to the control module, and the control module controls the solenoid valves to open or close the respective pipeline.
5. The system of claim 1, wherein the control module controls the flow control valve to decrease the flow rate except for the return line having the lowest temperature.
6. The system of claim 1, wherein the control module is configured to control the other flow control valves of the return line having the highest temperature to reduce flow.
7. The system of claim 1, wherein the sensed information of each sensor further comprises a pressure of the fluid in each return line.
8. The system of claim 1, wherein the control module comprises a MRAC algorithm for setting a target temperature and calculating the temperature and flow measured by the sensors to control the flow control valves to adjust the flow.
9. The system of claim 8, wherein the MRAC algorithm comprises an adaptive equation that adjusts parameters of the control module using differences between parameter estimates and reference model parameters.
10. The system of claim 9, wherein the reference model outputs a temperature difference from the actual system output, and the temperature difference is used as a basis for adjusting the control module to estimate the unknown or variable parameters of the system according to the error signal.

Description

Fluid flow instant regulating and controlling system Technical Field The invention relates to a fluid flow control technology, in particular to a fluid flow instant regulation and control system. Background The known TWM501931 patent is to install a temperature sensor in the mold, sense the temperature of each area and heat the area with insufficient temperature rise by a hot plate to achieve the purpose of uniform temperature. The known TWM493150 patent also installs a temperature sensor in the mold, but does not use a hot plate to heat, and fluid with different temperatures is introduced into different areas of the mold according to each sensing temperature, so as to achieve the purpose of uniform temperature. In the known CN101797634 patent, cold water or hot water is introduced into the runner, and the temperature of each runner is controlled to make the surface of the mold uniform. However, heating by a hot plate is easy to raise the temperature too high at some parts, and the fluid with different temperatures is not convenient for the mold to be filled with the fluid with various temperatures, and the mode of filling the runner with cold water or hot water is not easy to mix and adjust the desired temperature, so that the instant temperature uniformity regulation and control benefits are not good, and therefore, the improvement is needed. Disclosure of Invention Therefore, the present invention is directed to a fluid flow instant control system, which can control and adjust the fluid flow in real time, and achieve the effect of uniform temperature more quickly and accurately. The invention provides a fluid flow instant regulation system which comprises a valve island, a plurality of return pipes, a plurality of sensors and a control module, wherein the valve island is provided with a flow outlet for receiving fluid output by a fluid source, the flow outlet is used for sending the fluid back to the fluid source, the flow outlet is communicated with the valve island and is used for respectively sending the fluid in the flow outlet to a temperature control device, the return pipes are communicated with the flow outlet of the valve island and are used for respectively sending the fluid sent to the temperature control device to the flow outlet of the valve island, the sensors are respectively connected with the return pipes, the sensors can sense the fluid in the corresponding return pipes to obtain sensing information, the sensing information comprises the temperature and the flow of the fluid, the flow control valves are respectively connected with the return pipes and can adjust the flow, and the control module is connected with the flow control valves and the sensors in a wired or wireless mode and can instantly control the flow control valves to adjust the flow. The temperature of the fluid is measured by the sensors and is transmitted to the control module, and the control module controls the flow control valves to adjust the flow of the fluid, so that the flow of the fluid can be controlled and adjusted in real time, the effect of uniform temperature can be achieved more quickly and accurately, and the purpose of the invention is achieved. Preferably, the valve island comprises a first valve island and a second valve island, the second valve island is directly or indirectly connected to the first valve island, the first valve island is provided with the flow-out hole, and the second valve island is provided with the flow-back hole. Preferably, fluid flows through the sensor and then through the flow control valve, or fluid flows through the flow control valve and then through the sensor. Preferably, the system further comprises a plurality of electromagnetic valves respectively connected with the pipeline, the electromagnetic valves are connected with the control module in a wired or wireless mode, and the control module respectively controls the electromagnetic valves to open or close the pipeline. Preferably, the control module controls the flow control valve to reduce the flow except for the return line with the lowest temperature. Preferably, the control module controls the flow control valve to reduce the flow except for the return line with the highest temperature. Preferably, the sensing information of each sensor further comprises the pressure of the fluid in each return line corresponding to the sensing information. Preferably, the control module includes a MRAC algorithm for setting a target temperature and calculating the temperature and flow measured by each sensor to control each flow control valve to adjust the flow. Preferably, the MRAC algorithm includes an adaptive equation, and the parameter of the control module is adjusted by using the difference between the parameter estimation value and the reference model parameter. Preferably, the temperature difference between the reference model output and the actual system output is used as the basis of the adjustment control module, and t