CN2378733Y

CN2378733Y - Three parameter recording instrument

Info

Publication number: CN2378733Y
Application number: CN 99233607
Authority: CN
Inventors: 徐力生; 彭春雷; 陈金醮
Original assignee: Hunan Hydro&power Design Institute; Central South University
Current assignee: Hunan Hydro&power Design Institute; Central South University
Priority date: 1999-06-28
Filing date: 1999-06-28
Publication date: 2000-05-17
Anticipated expiration: 2009-06-28

Abstract

The utility model relates to a three-parameter recording instrument which is applied to the dynamic state monitoring and the online detection of the cement mortar engineering and the slurry grouting engineering. A host machine circuit is arranged in a machine box. The positive surface of a machine casing is provided with an operation display panel. The three-parameter recording instrument is characterized in that ray photons is converted to electric impulse signals by a sensor to be transported to a hardware interface circuit, and the water-ash ratio of the slurry can be obtained after the electric impulse signals are processed by the software of the host machine. The flowmeter signals of the entering slurry and the returning slurry pass through an isolator, and the serious interference of the entering slurry and the returning slurry existing on a CPU input channel is suppressed. After the software processing work of the host machine is finished, the online detection in 'major cycle' mode grouting can be realized.

Description

Three parameter recorders

The utility model has related to a kind of grouting three parameter self-recording devices with microcomputer, has particularly related to slurry water gray scale parameter in this registering instrument; Grouting flow parameter online test method and relevant art under the systemic circulation mode.Can be widely used in doing in grout, the mud grouting works dynamically monitoring and online detection.

Existing self-recording device can only be online detection grouting flow, two parameters of pressure, the water ash will lean on the manual keyboard input through parameter, can not truly reflect the in good time dynamic change of water cement ratio in the filling process, be unfavorable for the guidance scene join in good time the slurry influence grouting quality, add distortion and falseness that these various human factors cause related data.Flow detection can only be used for pure pressure type grouting owing to technical reason adopts a flowmeter, for China's circulating grouting (systemic circulation) commonly used, then needs to transform pipeline and connects into slurries and do not advance stock tank round-robin partial circulating mode and could work.The result causes slurries to close at circulation in the pipeline, causes the slurries temperature rise, and accident increases in the degradation, well.

The utility model aims to provide and a kind ofly can carry out three parameter systemic circulations and detect; The microcomputer measuring system of exploitation one cover superior performance; Grouting automatic recording instrument with high function/price ratio.

The utility model has adopted following technical measures for achieving the above object:

1. transplant the nuclear density gauge principle and solved the water cement ratio problem on line detection.Replace the densitometer main frame with grouting instrument main frame, only penetrate the source and detector both can detect the serum density that flows through the grouting pipeline non-contiguously in real time with it, and by main frame one the cover software density is converted to water cement ratio, solved the online detection of water cement ratio, and cost has only 1/4 of finished product density machine.

2. measure into slurry respectively and return the slurry flow advancing respectively to install on slurry and the slurry recovering tube road electromagnetic flowmeter, and get the actual injection rate IR of its difference as wellhole; Set up linear photoconductor and isolate on two input channels of main frame, there is serious phase mutual interference in the output signal that has suppressed two flowmeters on same CPU input channel, has realized the online detection of being in the milk of systemic circulation mode.

Be described further below in conjunction with accompanying drawing:

Fig. 1: host line theory diagram;

Fig. 2: operation display panel synoptic diagram;

Fig. 3: the water cement ratio sensor is formed and on-the-spot scheme of installation;

Fig. 4: the online detection hardware interface circuit of water cement ratio figure;

Fig. 5: " systemic circulation " grouting is advanced slurry and is returned slurry flowmeter scheme of installation;

Fig. 6: " systemic circulation " grouting flow detection interface circuit figure.

Fig. 1 is the host line theory diagram, and Fig. 2 is the operation display panel synoptic diagram, and host line is set in the cabinet, casing front surface fitting operation display panel; With 16 single-chip microcomputer 80C196KC is core, expansion 24K storer (EPROM16K ROM8K); 5832 real-time clocks; 8155,8255 I/O interfaces etc. are formed the main frame of microcomputer measuring system.The host line design has utilized has 8 tunnel 10 DAC in the 80C196KC single-chip microcomputer, the counter operand is big, and fireballing advantage is hard with soft generation as much as possible, has greatly simplified hardware.

Two 4 big captions LCDs 1 of operation display panel, the slurry specific gravity when being used to show grouting pressure, flow and inquiry, water cement ratio, accumulation grouting and corresponding dry ash consumption.Master Keyboard 5 is used for being provided with, input is in the milk parameter, grout hole correlation parameter and year, month, day, time; Be used for inquiring about slurry specific gravity instantaneous in the filling process, water cement ratio, accumulation grouting and corresponding dry ash consumption simultaneously.Function keypad 4 can carry out various grouting methods, packer permeability test function selecting, and instrument is worked under which kind of function, and functional indicator light 3 provides corresponding indication.Be provided with also on the panel in grouting, the packer permeability test process that parameter is super owes to limit acoustic-optic alarm 2, the aviation socket 6,7,8,9 of panel lower left respectively with the water cement ratio sensor in detector, advance slurry and join with the output signal line that returns slurry flowmeter, pressure unit.Print windows 10 is used to observe literal and the curve of exporting on the printer paper, is used for not open mainframe box and changes printer paper, pen and maintenance printer.

The utility model is realized by each sensor and main frame compounding practice.

Fig. 3 has illustrated the water cement ratio sensor to form and on-the-spot the installation, mozzle 23, detector 21, Signal connector 22, penetrate source 20 and form the water cement ratio sensors, the high pressure connection 24 of mozzle about in the of 23 guarantees that in order to be connected with the grouting pressure piping slurries flow from bottom to top.When slurry stream was crossed mozzle 23, detector 21 was transported to hardware interface circuit to the electric impulse signal that ray photons converts certain amplitude to.Mozzle 23 diameters should be greater than 100 millimeters during on-the-spot the installation, and must vertically install.

Fig. 4 is the online detection hardware interface circuit of water cement ratio, its input end TCQ+, TCQ-obtain the photoelectric pulse signal that detector is sent to, through the U1 frequency division, photoisolator is isolated, the monostable shaping is defeated by single-chip microcomputer counting port and is counted, it is to make detector power supply and shared two leads of output signal that L1 and C1 are set in the circuit, and the power supply of detector is provided by Vcc; R1 and L1 parallel connection are to reduce the pressure drop of Vcc on L1; U1 is connected into 16 frequency dividers and plays the frequency division effect; TIL is that photoisolator plays buffer action; U2A, U2B two Sheffer stroke gates and C4, R10 form monostable circuit, and the square wave that input pulse is shaped as rule is for the single-chip microcomputer counting; C1, R3, D1 and C3, R8, D2 are that two positive amplitude limit circuits of identical differential are to satisfy the requirement to trigger pulse of frequency divider and monostable; R2, R4, R5, R9 are current-limiting resistance; R7, R8 are biasing resistor; C2 is a filter capacitor; The counting pulse signal of input single-chip microcomputer obtains slurry water ash ratio after a sets of data process software is handled.

Fig. 5 has illustrated " systemic circulation " grouting to advance slurry and has returned the installation of slurry flowmeter.Grouting pump 36, stock tank 37 among the figure, thick black line is represented the pipeline that is in the milk, arrow represent slurry stream to, advance to starch on the pulp-inlet pipe road that flowmeter 31 and water cement ratio sensor 23 be installed in wellhole 33, pressure transducer 34 is preceding, and pressure regulator valve 35 is in the back and return slurry flowmeter 30 and be installed on the slurry recovering tube road.Thin black line is represented the signal transmssion line of each sensor to main frame 38 among the figure.

Fig. 6 is " systemic circulation " grouting flow detection interface circuit, and Q1, Q2 are respectively into slurry and the input end that returns the slurry flow meter signal.Wherein GDXXGLQ is electric current-current signal linear electric weight isolator, and there is serious phase mutual interference in the output signal that suppresses two flowmeters on same CPU input channel; RW1 and RW2 are for advancing, return slurry flow range regulator potentiometer, CW1 and CW2 two stabilivolts are used for the input end overcurrent protection, Q1 and Q2 end tap into slurry and the flow signal that returns slurry flowmeter 0～10mA respectively, QGND is flow meter signal ground, the CH6 of the A/D of CPUCH tap 80C196KC, CH4 interface, CPUANGND are the reference ground of A/D converter; Realize the online detection of being in the milk of " systemic circulation " mode through main frame one sets of data process software.

The utility model has adopted current domestic and international state-of-the-art sensor technology technically, has realized three parameters, the online detection of systemic circulation, and with the 16-bit single-chip processor to be that core is developed multiple functional, the registering instrument main frame of superior performance.Compare with domestic existing two parameter partial circulating grouting automatic recording instruments, the most outstanding is the exploitation and the successful Application of online detection of water cement ratio and systemic circulation detection mode, and the most positive effect of the utility model is that the technical merit of China's grouting automatic recorder is brought up on the new starting point.

Claims

1. a parameter recorder is applied to do dynamically monitoring and online detection in grout, the mud grouting works, in its cabinet host line is set, casing front surface fitting operation display panel; Realize the online detection of being in the milk of the online detection of water cement ratio and " systemic circulation " mode by each sensor and main frame 38 compounding practices, it is characterized in that:

1. by mozzle 23, detector 21, penetrate source 20 and form the water cement ratio sensor, the electric impulse signal that ray photons is converted to certain amplitude is transported to hardware interface TCQ+, TCQ-, through the U1 frequency division, photoisolator is isolated, the monostable shaping is defeated by single-chip microcomputer counting port and is counted, and obtains slurry water ash ratio after handling by the host data process software; It is to make then device power supply and shared two leads of output signal that L1 and C1 are set in the circuit, and the power supply of detector is provided by Vcc; R1 and L1 parallel connection are to reduce the pressure drop of Vcc on L1; U1 is connected into 16 frequency dividers and plays the frequency division effect; TIL is that photoisolator plays buffer action; U2A, U2B two Sheffer stroke gates and C4, R10 form monostable circuit, and the square wave that input pulse is shaped as rule is for the single-chip microcomputer counting; C1, R3, D1 and C3, R8, D2 are that two positive amplitude limit circuits of identical differential are to satisfy the requirement to trigger pulse of frequency divider and monostable; R2, R4, R5, R9 are current-limiting resistance; R7, R8 are biasing resistor; C2 is a filter capacitor;

2. advance slurry and return slurry flowmeter 31,30 signals, suppress it and on same CPU input channel, have serious phase mutual interference by input end Q1, Q2 process GDXXGLQ electric current-current signal linear electric weight isolator; RW1 and RW2 are for advancing, return slurry flow range regulator potentiometer, CW1 and CW2 two stabilivolts are used for the input end overcurrent protection, Q1 and Q2 end tap into slurry and the flow signal that returns slurry flowmeter 0～10mA respectively, QGND is flow meter signal ground, the CH6 of the A/D of CPUCH tap 80C196KC, CH4 interface, CPUANGND are the reference ground of A/D converter; Realize the online detection of being in the milk of " systemic circulation " mode through main frame 38 1 sets of data process softwares.