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Temperature control instrument for quick frost thawing of concrete

A technology of engineering control and concrete, applied in the direction of temperature control by electric means, can solve the problems of difficult maintenance and high cost of temperature controller

Inactive Publication Date: 2006-10-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of high cost and difficult maintenance of the existing temperature controllers for rapid freezing and thawing of concrete, the present invention provides a brand-new temperature engineering controller for rapid freezing and thawing of concrete, which is a set of full-process temperature control for different requirements Automatic monitoring and control system, the device is connected to the computer through the USB interface, and can accurately measure the temperature change of the monitored point in real time

Method used

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  • Temperature control instrument for quick frost thawing of concrete
  • Temperature control instrument for quick frost thawing of concrete
  • Temperature control instrument for quick frost thawing of concrete

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Experimental program
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specific Embodiment approach 1

[0007] Specific embodiment one: referring to Fig. 1, the temperature engineering controller of this specific embodiment consists of multi-way switch 2, A / D conversion module 3, central controller 5, LCD liquid crystal display unit 6, keyboard control unit 7, system storage unit 4. The USB interface module 8 and the system clock circuit 9 are composed, and the output terminals of N temperature test units 1 respectively fixed at different monitoring points on the industrial equipment are respectively connected with multiple input terminals of the multi-way switch 2, and the multi-way switch 2 The output end of the A / D conversion module 3 is connected to the input end, the control end of the multi-way switch 2 is connected to the multi-channel strobe control end of the central controller 5, and the output end of the A / D conversion module 3 is connected to the central controller 5 The measurement data input end is connected, the data transmission end of the system storage unit 4 is...

specific Embodiment approach 2

[0008] Specific embodiment two: referring to Fig. 1, the difference between this specific embodiment and specific embodiment one is: the temperature engineering controller also includes an alarm circuit 13, the alarm control end of the central controller 5 and the input end of the alarm circuit 13 connected. Other components and connections are the same as those in the first embodiment. The alarm circuit 13 can send an alarm message when the controller detects an abnormal temperature and a problem occurs in the system.

specific Embodiment approach 3

[0009] Specific embodiment three: Referring to Fig. 1 and Fig. 2, the difference between this specific embodiment and specific embodiment two is: the multi-way switch 2 is formed by parallel connection of two first chips U1 whose model is CD4051, and N The output ends of the temperature test unit 1 are respectively connected to a plurality of input ends of the two first chips U1, and the pins 9, 10, and 11 of the two first chips U1 are respectively connected correspondingly; the A / D conversion module 3 adopts a model of The second chip ADC1 of AD7705, pins 7 and 6 of the second chip ADC1 are respectively connected to the output terminals of the two first chips U1, pins 8 and 11 of the second chip ADC1 are connected to the output terminal of the first DC power supply V1, Pin 9 of the second chip ADC1 is connected to the output terminal of the second DC power supply V2, pin 10 of the second chip ADC1 is connected to the output terminal of the third DC power supply V3, pin 16 of t...

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Abstract

The invention relates to a temperature project controller used in concrete quick freezing and fusing, which can solve the defects of present temperature controller with high cost and hard maintenance. Wherein, the outputs of N temperature measure units at different measuring points are independently connected to the inlet of multi-path switch (2); the signal output by multi-path switch (2) via A / D convert module is input into the central controller (5); the display output of central controller (5) is connected to the input of LCD liquid crystal display unit (6); the output of keyboard control unit (7) is connected to the control input of central controller (5); the central controller (5) via USB interface module (8) is connected to the ascending device (10). The invention can measure and display the temperatures at different measuring points of multi temperature detectors, and control the heating and refrigerating states according to these temperatures.

Description

technical field [0001] The invention relates to a temperature measuring instrument for rapid freezing and thawing technology of concrete. Background technique [0002] At present, most of the large-scale equipment for temperature control of rapid freezing and thawing of concrete in my country relies on imports. This is not because of the poor production level in our country, but because of the lack of manufacturing automation control chips and software technology. There are also a lot of equipment, although the external equipment has been localized, but the control equipment still relies on imports, which will cause the increase of equipment cost and the difficulty of equipment maintenance. Contents of the invention [0003] In order to overcome the shortcomings of high cost and difficult maintenance of the existing temperature controllers for rapid freezing and thawing of concrete, the present invention provides a brand-new temperature engineering controller for rapid fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/19
Inventor 巴恒静关辉邓红卫高小建张武满
Owner HARBIN INST OF TECH