CN115389369A - Automatic change mud spot test device - Google Patents

Abstract

The invention discloses an automatic mud rapid measuring device, which comprises a main body and an upper hopper bin arranged in the main body and used for measuring mud proportion and mud viscosity, wherein an upper cover is arranged at the upper end of the upper hopper bin; the foldable numerical control screen is arranged on the main body, and after the foldable numerical control screen is started, buttons of 'preparation for measurement', 'start for measurement', 'data entry', 'data export', 'cleaning' are displayed, and the corresponding buttons are clicked to enter corresponding interfaces; the microcomputer storage bin is arranged in the main body and fixedly connected with the folding numerical control screen, and a microcomputer main board is arranged in the microcomputer storage bin and used for processing the transmitted data information; the sand rate measuring bin is arranged below the upper hopper bin in the main body and is used for measuring the mud sand rate.

Description

An automatic mud quick measuring device

technical field

The invention relates to the construction field, in particular to an automatic mud quick measuring device.

Background technique

With the development of engineering construction, more and more projects have begun to vigorously develop underground space. In order to cope with unfavorable geological conditions, wet work methods are widely used in foundation and foundation engineering construction. During the construction process of the wet construction method, due to different geological conditions, the construction of holes and trenches has different requirements on the performance of the mud. Therefore, it is necessary to conduct random sampling tests on the performance of the mud during the construction process to ensure the construction quality and construction schedule. The traditional mud performance measurement method is relatively simple, mainly using a three-piece set consisting of a mud hydrometer, a Marsh funnel viscometer and a mud sediment tester. Disadvantages such as cleaning, time-consuming and labor-intensive, etc., especially when there are many working surfaces, will greatly increase the burden of random testing for experimenters and directly affect the quality of the project entity.

Contents of the invention

The object of the present invention is to provide an automatic mud quick measuring device aiming at the deficiencies of the prior art.

The technical solution adopted by the present invention to solve the above technical problems is: an automatic mud rapid measurement device, including a main body, characterized in that it also includes:

Upper funnel chamber: set in the main body, used for the measurement of mud specific gravity and mud viscosity, the upper end of the upper funnel chamber is provided with an upper cover;

Folding CNC screen: set on the main body, after starting up, it will display the buttons of "ready to measure", "start to measure", "data entry", "data export" and "cleaning", click the corresponding button to enter the corresponding interface;

Microcomputer storage compartment: set in the main body and fixedly connected with the folding numerical control screen, the microcomputer storage compartment is equipped with a microcomputer motherboard for processing the transmitted data information;

Sand rate measurement chamber: it is set under the upper funnel chamber in the main body, and is used to measure the mud sand rate.

Preferably, it also includes a middle funnel bin arranged between the upper funnel bin and the sand ratio measurement bin, the connection or closure is controlled by a numerical control valve between the middle funnel bin and the sand ratio measurement bin, and the bottom of the sand ratio measurement bin is provided with Built-in measuring cup located inside the main body.

Preferably, the upper funnel chamber includes a funnel body, the lower part of the funnel body is provided with an outflow pipe communicating with the inside of the funnel body, and also includes an agitator connected to the upper cover and arranged on the funnel body for measuring the weight in the funnel. A variable pressure-sensitive sensor, the lower part of the outflow pipe is provided with a controllable valve, the pressure-sensitive sensor is electrically connected to the folding numerical control screen, and the controllable valve is electrically connected to the microcomputer main board.

Preferably, the sand rate measurement chamber is composed of a gamma ray radiation source, a multiphase flow path, a radiation source protection cover, an openable detection port, a sand rate measurement tube, high and low dual-energy gamma rays and a gamma ray receiver , Determination of sand rate Through the determination method of phase fraction of multiphase flow, the content of sand rate in mud is measured in real time, and the average value is calculated.

Preferably, a base is provided at the bottom of the main body, and several leveling tripods extend outward from the side ends of the main body.

Compared with prior art, the beneficial effect of the present invention is:

The present invention quickly measures the specific gravity, viscosity and sand rate of the mud by sampling the mud on site. Compared with the existing traditional mud performance measurement means on the construction site, the method can accurately and quickly measure the mud performance. The mud sample is placed in the device, and the relevant data can be read on the folding numerical control screen through the automatic operation of the equipment, which avoids the cumbersome operation process of the experimenter and the pollution caused to the instrument during the mud measurement process and the long-term use. The accuracy of the instrument is compromised, reducing the pressure on the staff.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a structural schematic diagram of the present invention;

Fig. 2 is the schematic diagram of the upper funnel storehouse of the present invention;

Fig. 3 is the schematic diagram of the sand rate measuring chamber of the present invention;

Fig. 4 is a work flowchart of the present invention;

Fig. 5 is a measurement flow chart of the present invention.

Detailed ways

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

Please refer to Figures and Figures 1 to 5, an automatic mud rapid measurement device, including a main body, which is provided with an upper funnel bin 1, a folding numerical control screen 2, a microcomputer storage bin 3, a middle funnel bin 4, a numerical control valve 9, The sand rate measurement chamber 5, the device base 6, the built-in measuring cup 7 and the leveling tripod 8 are composed of several parts. There is a detachable screen on the top, which is used to filter large sand and gravel. It can be stored in the lower part of the main body when it is not in use, and can be taken out when in use. It is closely connected with the device through a buckle. The buckle is equipped with a sensor. If the measuring cup is not reset, it will be raised Alarm, after clicking the "ready to measure" button on the folding CNC screen 2, the 500ml mud that has been sieved in the built-in measuring cup 7 can be directly poured into the upper funnel bin 1, and the upper cover above the upper funnel bin is closed to start the mud specific gravity measurement. Measurement, mud viscosity measurement and mud sand rate measurement, after a short wait, you can read and record the relevant information of the measured mud on the numerical control folding numerical control screen 2. The microcomputer storage bin 3 has a built-in microcomputer main board and an external folding numerical control screen for centralized collection 1. Process the data information sent by each component, and export the recorded relevant data in the form of a file. After all the measurement work is completed, the automatic cleaning work can be completed, and finally the waste water in the built-in measuring cup 7 is poured out to complete all Operation, you can move to the next place to be tested and repeat the above steps for mud measurement.

The upper funnel storehouse 1 of the present invention includes a funnel body 104, the bottom of the funnel body 104 is provided with an outflow pipe communicating with the inside of the funnel body 104, and also includes an agitator 101 connected to the upper cover and arranged on the funnel body 104 for A pressure-sensitive sensor 102 for measuring weight changes in the funnel, a controllable valve 103 is provided at the bottom of the outflow pipe, the pressure-sensitive sensor 102 is electrically connected with the folding numerical control screen 2, and the controllable valve 103 is electrically connected to the main board of the microcomputer. Therefore, it is necessary to click the "ready to measure" button before officially pouring the mud, and reset the reading of the pressure sensitive sensor 102 to zero. After pouring the mud, click the "start measuring" button to record the mud weight. The mud volume in the funnel bin 1 is 500ml, so the weight measured at this time is divided by the mud volume, that is, 500ml, to obtain the mud specific gravity. Suspension state, after stirring, stand still for 3s, controllable valve 103 is opened, and timing is performed at the same time. When the real-time reading of pressure-sensitive sensor 102 returns to zero, that is, all 500ml of mud in the funnel has flowed out, and the timing is ended. At this time, the timing result is Mud viscosity, when the measurement of mud specific gravity and mud viscosity is not completed, the numerical control valve 9 remains closed. After the measurement of mud viscosity is completed, the numerical control valve 9 opens automatically under the control of the microcomputer motherboard, and the mud enters the sand ratio measurement chamber 5.

In addition, the middle funnel bin 4 is set to take over the mud that the upper funnel bin 1 has completed the mud specific gravity and mud viscosity measurement, and can wait for a short time before the sand ratio measurement, so as to improve the accuracy of the sand ratio measurement.

In the present invention, the sand rate measurement chamber 5 is composed of a gamma ray radiation source 501, a multiphase flow path 502, a radiation source protection cover 503, an openable detection port 504, a sand rate measurement tube 505, a high and low dual energy gamma ray 506 and a gamma ray. The horse ray receiver is composed of 507, and the sand rate is measured by the method of measuring the phase fraction of the multiphase flow, and the sand rate content in the mud is measured in real time, and the average value is calculated.

The principle of sand rate measurement is as follows: the measured mud is essentially a solid-liquid mixed multiphase flow, and the determination of sand rate is to determine the volume percentage of solid phase in the multiphase flow. The method utilizes an online method for measuring the volumetric sand content in the multiphase flow, and calculates the average sand content accumulatively according to the real-time measured sand content. This method utilizes the gamma ray radiation source 501 and the gamma ray receiver 507, utilizes the high and low energy level gamma rays emitted by the radiation source, and when the high and low dual energy gamma ray 506 passes through the absorption medium, it will interact with the absorption medium The photoelectric effect, Compton scattering, and electron pair generation interact, and part of it is absorbed by the absorbing medium, thereby causing attenuation of the ray intensity. The receiver 507 located on the other side of the sand ratio measuring tube 505 receives and detects the attenuated gamma The ray intensity, that is, the transmission intensity N, is calculated based on a certain formula to obtain the absorption coefficient, and then analyzed and calculated according to the absorption coefficient of the solid phase and the liquid phase, to obtain the phase fraction of the solid phase, that is, the sand content rate. The principle of measuring the phase fraction of multiphase flow has been widely used in the field of physics, and can be found in relevant monographs, which will not be repeated here.

Determination and calculation of sand rate: Determine the relevant parameters of the radioactive source. For example, taking the ¹³³ Ba radioactive source as an example, the combination of 31keV and 81keV energy level gamma rays produced by the radioactive source is selected as the high-energy gamma ray and gamma ray required by this method. Low energy gamma rays. Before the calculation and determination of this method, some basic parameter measurement work must be determined through experiments, such as high and low energy gamma ray counts during liquid phase full water calibration (basic parameter measurement samples are selected to have composition or properties close to liquid phase), low energy Base value, high energy escape value, high and low energy mass absorption coefficients of each phase and other related parameters. Since this method adopts the joint solution method of high and low energy, it is first necessary to judge the data determined by the detection, whether there is sand in the mud to be tested, if there is no sand, directly output the result that the sand rate is zero, and then judge the sand rate calculation rule, according to The correlation between the low-energy gamma ray count and the low-energy measurable critical count value determines the solution method. The specific solution method and discrimination conditions are mature technologies known to those skilled in the relevant fields, and can be found in relevant monographs, which will not be described in this article.

Import information such as mud sampling locations and working machines that can be determined before mud measurement. After the mud measurement is completed, the system will link the measured information with the selected information, and output them on the folding CNC screen 2 in a unified manner, which can be stored with the system. It can be exported in the form of files in the middle and later stages. When the measurement is completed, take 500ml-600ml of clear water and pour it directly into the upper funnel compartment 1, close the upper cover, and click the "cleaning" button on the foldable CNC screen 2, and the device can pass through the mixer 101 Stirring, ultrasonic cleaning and other methods to complete automatic cleaning.

Assay method of the present invention is as follows:

On-site sampling and equipment placement: This method can be directly carried by the experimenter to the operating point, and the built-in measuring cup 7 is used to fill 500ml of mud, and the base 6 is placed on a stable ground, and the tripod 8 is used for leveling.

Measurement of mud specific gravity: The measurement of mud specific gravity is the measurement of the relative density of mud and water. Since the density of water is 1.0g/cm ³ , the mud specific gravity is the mud density. In this method, a pressure-sensitive sensor 102 is installed in the upper funnel chamber. The weight change of the solution in the funnel can be recorded in real time. Before injecting the mud to be tested into the upper funnel chamber, you need to click the "Prepare to Measure" button to reset and correct the pressure-sensitive sensor 102. At this time, the sensor reading returns to zero. After injecting the mud, close the lid and click the "Start Measurement" button That is, it is recorded that the sensor is read well at this time. Since the amount of mud collected is 500ml, and the volume displayed on the scale of the upper funnel bin is also 500ml, to measure the specific gravity of the mud at this time is the sensor reading/500ml, and record the corresponding operating point and the corresponding mud specific gravity.

Mud viscosity measurement: After injecting 500ml of the mud to be tested into the upper funnel bin, close the lid, click the "Start Measurement" button, and after the pressure-sensitive sensor 102 records the reading at this time, place the stirring rod on the upper lid for a short period of time. Stir to keep the mud in a suspension state. After standing for a few seconds, the controllable valve 103 at the lower mouth of the funnel is opened. When the controllable valve 103 is opened, the system starts timing. When the reading of the pressure-sensitive sensor 102 returns to zero again, the system Stop timing, at this time, the viscosity of 500ml mud to be tested is obtained, and the system records it;

Determination of mud sand rate: In the construction industry, the determination of mud sand content is actually to measure the mud volume sand content. The mud that has been tested for specific gravity and viscosity is stored in the middle funnel. After all the mud in the upper funnel bin flows out , the middle part of the funnel opens the numerical control valve 9, so that the temporarily stored mud flows through the lower sand rate measuring tube 505 under the action of gravity, and the average volumetric sand content of the mud to be tested is obtained.

The measurement is completed: when all the detection mud falls into the built-in measuring cup 7 below, the detection is completed, and the system displays the information of the measurement site, the specific gravity of the mud, viscosity and sand rate and other related information on the foldable CNC screen, and can be connected to the data transfer device. The phased measurement data are counted and summarized, and finally exported in the form of files.

Equipment cleaning: Pour out the mud in the built-in measuring cup 7 and reset it again, take 500ml of clean water and pour it into the upper funnel chamber again, close the upper cover, click the "cleaning" button on the foldable CNC screen 2, wait for a while, put the mud in the built-in measuring cup 7 The cleaning waste liquid is poured out, and the cleaning work is completed.

The invention quickly measures mud parameters through automatic detection, which reduces the cumbersome operation steps of operators; through information processing, reduces operational errors in the test process; properly stirs before starting formal measurement to prevent mud from settling and affecting experimental results; Through the comprehensive linkage between electronic components, the measurement of mud specific gravity and mud viscosity is realized; with the help of the method of measuring the phase fraction of multiphase flow, the phase fraction of solid phase in solid-liquid multiphase flow is measured, that is, the mud sand ratio; through The system records, can store the mud measurement results corresponding to multiple working points at the same time, and can summarize and export them in the form of files; when the mud detection is completed, it is stored in the built-in measuring cup 7, and other auxiliary parameters such as mud pH, dynamic shear force, and water loss can be continuously measured , without re-sampling; the cleaning function is set, which can automatically clean the equipment without repeated manual cleaning.

Therefore, the present invention realizes automatic, one-button rapid and accurate measurement of mud properties through an automated rapid measurement method for mud, avoids cumbersome operations of manual measurement, and reduces the operational burden of experimenters.

The automatic mud rapid measurement method simplifies the manual measurement steps and reduces the difficulty of operation through one-button operation, so that personnel without relevant work experience can quickly get started and complete the mud measurement work.

As above, while the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. An automatic mud quick measuring device, comprising a main body, is characterized in that, also includes: Upper funnel chamber: set in the main body, used for the measurement of mud specific gravity and mud viscosity, the upper end of the upper funnel chamber is provided with an upper cover; Folding CNC screen: set on the main body, after starting up, it will display the buttons of "ready to measure", "start to measure", "data entry", "data export" and "cleaning", click the corresponding button to enter the corresponding interface; Microcomputer storage compartment: set in the main body and fixedly connected with the folding numerical control screen, the microcomputer storage compartment is equipped with a microcomputer motherboard for processing the transmitted data information; Sand rate measurement chamber: it is set under the upper funnel chamber in the main body, and is used to measure the mud sand rate. 2. A kind of automatic mud fast measuring device according to claim 1, is characterized in that, also comprises the middle part funnel storehouse that is arranged on between upper funnel storehouse and sand rate measuring storehouse, between middle part funnel storehouse and sand rate measuring storehouse The connection or closure is controlled by a numerical control valve, and a built-in measuring cup located in the main body is arranged below the sand ratio measuring chamber. 3. A kind of automatic mud fast measuring device according to claim 2, it is characterized in that, described upper funnel storehouse comprises funnel body, and the bottom of described funnel body is provided with the outflow pipe that communicates with the inside of funnel body, also includes The agitator connected to the upper cover and the pressure-sensitive sensor arranged on the funnel body for measuring the weight change in the funnel, the lower part of the outflow pipe is provided with a controllable valve, and the pressure-sensitive sensor is electrically connected with the folding numerical control screen, so The controllable valve is electrically connected with the microcomputer main board. 4. A kind of automatic mud fast measuring device according to claim 2, it is characterized in that, described sand rate measuring chamber is made of gamma ray radiation source, multiphase flow path, radiation source protection cover, can open detection port, Sand rate measuring tube, high and low dual-energy gamma ray and gamma ray receiver are used to measure the sand rate through the method of measuring the phase fraction of multiphase flow to measure the content of sand rate in the mud in real time and calculate the average value. 5. A kind of automated mud rapid measuring device according to claim 1, characterized in that, the built-in measuring cup is composed of a measuring cup with a volume greater than 500ml and marked with a 500ml scale line and a detachable screen, and the built-in measuring cup and the main body They are closely connected by buckles, and the buckles are provided with sensors. 6 . The automatic mud rapid measuring device according to claim 1 , wherein a base is provided at the bottom of the main body, and several leveling tripods extend outward from the side ends of the main body. 7 .

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