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Inspecting and monitoring system for liquid temperature in liquid groove of wet method groove type machine

A monitoring system, liquid tank technology, applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., can solve the problem that the detection system cannot detect, the overheat detection thermocouple cannot provide alarms, etc., to avoid a large number of problems. Abnormal product, guarantee the effect of normal operation

Active Publication Date: 2011-05-04
SHANGHAI HUAHONG GRACE SEMICON MFG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) If the temperature detection thermocouple fails and the temperature in the liquid medicine tank is lower than the lower limit, the overheat detection thermocouple cannot provide an alarm;
[0006] 2) When the temperature detection result of the thermocouple has a certain drift, it will cause the temperature controller to control the heater of the liquid medicine tank according to the drifted display results, which will cause the actual temperature in the liquid medicine tank to drift, and the drift Finally, if the actual temperature does not exceed the upper limit set by the overheating detection thermocouple, the detection system cannot detect

Method used

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  • Inspecting and monitoring system for liquid temperature in liquid groove of wet method groove type machine
  • Inspecting and monitoring system for liquid temperature in liquid groove of wet method groove type machine
  • Inspecting and monitoring system for liquid temperature in liquid groove of wet method groove type machine

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Embodiment 1

[0022] The temperature of a certain liquid in the liquid medicine tank is set as follows: the central temperature is 65°C, the upper limit temperature is 70°C, and the lower limit temperature is 60°C. When the actual temperature of the liquid medicine is 55°C, the temperature detection thermocouple fails, and the detected temperature still shows 65°C. According to the wrong display result, the first temperature controller will not request the heater to be turned on. The thermocouple temperature measurement shows normal, which is 55°C, but since only the detection limit temperature is set to 70°C, the overheat detection thermocouple will not alarm. At this time, the difference calculator shows that the difference between the temperature measurement results of the temperature detecting thermocouple and the overheating detecting thermocouple is 10°C, and the specification of the difference calculator is set at 2°C, so the drift detection and alarm system is based on the difference...

Embodiment 2

[0024] The temperature of a certain liquid in the liquid medicine tank is set as follows: the central temperature is 65°C, the upper limit temperature is 70°C, and the lower limit temperature is 60°C. When the actual temperature of the liquid medicine is 65°C, the temperature detected by the overheating detection thermocouple is normal, and the detection result is 65°C, and the temperature detection thermocouple drifts, and the detection temperature is 68°C, but because the two detection results are within the specification , the device will not alarm. At this time, the difference between the temperature measurement results of the temperature detection thermocouple and the overheating detection thermocouple detected by the difference calculator is 3°C, and the specification of the difference calculator is set to 2°C, so the drift detection and alarm system is based on the difference result If the set specification is exceeded, an alarm feedback is given to the machine in time....

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Abstract

The invention discloses a liquid temperature checking and monitoring system in a wet-method slot type board liquid slot, which comprises a temperature checking thermoelectric couple, an overheat checking couple, a first temperature controller, a second temperature controller, a temperature check alarming system and an overheat check alarming system, and also comprises a difference value arithmetical unit and a drift check alarming system, wherein one end of the difference value arithmetical unit is connected with the first temperature controller, the other end is connected with the second temperature controller, and is used for the difference value calculation of temperature test results of the temperature checking thermoelectric couple and the overheat checking couple; the drift check alarming system is connected with the difference value arithmetical unit, and is used for judging the arithmetical results of the difference values and controlling alarm. When the temperature checking thermoelectric couple goes wrong or drifts, the checking and monitoring system of the invention can check and alarm in time. The abnormity of a large number of products due to the non-detection of liquid temperature abnormity can be effectively avoided, and the normal operation of wet-method process can be ensured.

Description

technical field [0001] The invention relates to a temperature detecting and monitoring system, in particular to a system for detecting and monitoring the liquid temperature in a liquid tank of a wet tank type machine. Background technique [0002] At present, in the wet process, a machine with a tank structure is used, and the detection and monitoring of the temperature of the liquid in the liquid tank is generally carried out in the following way: [0003] The detection of the temperature of the liquid medicine in the liquid medicine tank mainly uses a single thermocouple (ThermalCouple, TC) to detect the temperature and set the upper and lower limit specifications. The thermocouple is a temperature detection thermocouple. The first temperature controller then relies on the first temperature controller to control the opening and closing of the heater in the tank (see Figure 1), relying on the temperature detection control system composed of the temperature detection thermoc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/22
Inventor 赵晓亮仓凌盛顾华平
Owner SHANGHAI HUAHONG GRACE SEMICON MFG CORP