Numerical controlling pressure tester used in concrete box culvert and testing method therefore

A technology of concrete and tester, which is applied in liquid/vacuum measurement for liquid tightness, and by measuring the increase and deceleration rate of fluid, etc., can solve the problem of inaccurate detection of box culvert expansion joints.

Active Publication Date: 2007-09-12
TIANJIN ZHENJIN ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to solve the problem that the expansion joints of box culverts cannot be accurately detected, and provide a numerically controlled pressure tester and detection method for concrete box culverts that can accurately detect the expansion joints of concrete box culverts

Method used

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  • Numerical controlling pressure tester used in concrete box culvert and testing method therefore
  • Numerical controlling pressure tester used in concrete box culvert and testing method therefore
  • Numerical controlling pressure tester used in concrete box culvert and testing method therefore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] PLC main controller (1) is made up of main control module (10), communication conversion module (11), AI module (12) and DO module (13), main control module (10), communication conversion module (11), The AI ​​module (12) and the DO module (13) are connected through the interface of the PLC backplane, and communicate with each other. The main control module (10) adopts the S16-M1 module, which supports wired and wireless communication, and the real-time clock provides daily operation. and the alarm time, the communication conversion module (11) adopts the F204 template, the AI ​​module (12) adopts the F101 module, the input end is connected with the high-precision analog signal source of the pressure, liquid level, flow and temperature transmitters, and the DO module (13) F133 module is used to control indicator lights, relays, valves and other ON / OFF devices that require 12-24VDC and appropriate load current.

[0041] The AI ​​module (12) of the PLC main controller (1)...

Embodiment 2

[0049] The sealant adopts polyurethane sealant, the airtight layer (17) adopts two-component polysulfide sealant material to make the airtight layer (17), the filling layer (18) adopts the foam plastic plate material to make the filling layer (18), and the water-stop airtight layer ( 19) The water-stop sealing layer (19) is made of rubber water-stop material, as shown in Fig. 3 and Fig. 4 .

Embodiment 3

[0051] Before making the airtight layer (17) of the concrete box culvert (20) expansion joint (24) or after making the airtight layer (17), use an electric drill on the expansion joint (24) from the inside of the concrete box culvert (20) to the concrete box Culvert (20) outside bores, drills more than 1 hole at least on expansion joint (24), and borehole is drilled to the water-stop airtight layer (19) of expansion joint (24). Insert the detection cannula (16) into the hole, the other end of the detection cannula (16) is inserted into the filling layer (18) through the airtight layer (17) of the expansion joint (24), and the other end of the detection cannula (16) One end is inserted into the water-stop airtight layer (19) of expansion joint (24), and the insertion opening on the airtight layer (17) around the sealing layer (17) of detection intubate (16) one end is detected with sealant bonding, detects after the sealant coagulates.

[0052] During inflation detection, the o...

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PUM

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Abstract

This invention is a digital control pressure test instrument use for concrete box culvert and its test method. PPLC master controllers are composed by main control module, communication alternative module, AI module and DO module. AI module connect with pressure transmitter to pick electrical signal; relaid and compressor electromagnetic valve, air pump electromagnetic valve and air compressor connect with air pump; relaid adopt double-throw way, to display command information and collective data information on display unit; Through detecting tube to inflate or deflate or inject water to expansion joint internal packing layer, to detect whether expansion joint has leakage. At test procedure can judge expansion joint whether filter, its data save in computer, through the medium of U disc could extract data, and can process report, print and analysis data indoors.

Description

technical field [0001] The invention relates to water tightness testing equipment, in particular to a numerically controlled pressure tester and a testing method for concrete box culverts. Background technique [0002] In water conservancy projects, concrete box culverts are widely used in the pipe network of water delivery projects. The connection between concrete box culverts and concrete box culverts is provided with box culvert expansion joints. Box culvert expansion joints are used to eliminate concrete box culverts and concrete box culverts. The internal stress generated by each other and the internal stress caused by deformation caused by other reasons, the expansion joint of the box culvert is the key to ensuring the concrete box culvert; but at the same time, the expansion joint of the box culvert is also the weak link in the construction of the box culvert, the expansion joint of the box culvert There is no way to know whether there is leakage, and there are two tr...

Claims

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Application Information

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IPC IPC(8): G01M3/26
Inventor 刘学功程庆臣张志颇赵考生靳文泽汪长余
Owner TIANJIN ZHENJIN ENG GRP
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