CN107504926B - Pipeline scale deposit thickness detection probe and pipeline cleaning method - Google Patents
Pipeline scale deposit thickness detection probe and pipeline cleaning method Download PDFInfo
- Publication number
- CN107504926B CN107504926B CN201710697124.3A CN201710697124A CN107504926B CN 107504926 B CN107504926 B CN 107504926B CN 201710697124 A CN201710697124 A CN 201710697124A CN 107504926 B CN107504926 B CN 107504926B
- Authority
- CN
- China
- Prior art keywords
- scale
- pipeline
- ultrasonic
- thickness
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The invention provides a pipeline scale thickness detection probe and a pipeline cleaning method, wherein the pipeline scale thickness detection probe comprises an ultrasonic transmitter, an ultrasonic receiver, a calibrator, a base, a contraction side wall and a shell, wherein: one side of the shell is sequentially provided with an ultrasonic transmitter, a calibrator and an ultrasonic receiver, and the other side of the shell is connected with a contraction side wall; the ultrasonic receiver is connected to the base; the base is connected with a telescopic cable; the ultrasonic transmitter, the ultrasonic receiver and the telescopic cable are all in communication connection with the controller. The pipe scale thickness detection probe provided by the invention has the advantages of simple structure, convenience in use and high measurement precision, and can be widely applied to pipe scale thickness measurement. The invention also provides a pipeline cleaning method, which adopts the pipeline accumulated scale thickness detection probe to effectively clean accumulated scale without corroding the pipeline; the problem of in the current cleaning method artifical input medicament dosage inaccurate, lead to wasing not in place or corrode the pipeline is solved.
Description
Technical Field
The invention relates to the field of pipeline cleaning, in particular to a pipeline scale deposit thickness detection probe and a pipeline cleaning method.
Background
In daily life, the water supply pipeline is closely related to the life and the life of people. However, in the water supply pipeline which is used for a long time, due to the flowing of water in the pipeline, the oxidation reaction can generate rust scale and the scaling of oil sludge and soluble calcium magnesium compounds in water, so that the scaling is formed on the inner wall of the pipeline, the inner diameter of the pipeline is reduced, the water supply is not smooth, and the problem that the pipeline is blocked and the water cannot be supplied in serious cases is caused. In addition, the scaling on the inner wall of the pipeline provides an environment for the proliferation of various microorganisms in water, so that harmful substances such as bacteria and viruses in the water are increased, and the serious threat to the health of people is formed.
At present, the pipeline cleaning usually adopts a chemical method or a physical method to remove the scale on the inner surface of the pipeline, so that the inner surface of the pipeline recovers the original surface material. The chemical cleaning is a chemical cleaning technique in which a chemical cleaning agent is used to chemically react with the scale to remove the scale from the surface. Citric acid is used as a cleaning agent and is widely applied to chemical cleaning work. The dosage of the citric acid is related to the thickness of the scale deposit of the pipeline, and if the dosage of the citric acid is too small, the cleaning effect is not good; if the amount of citric acid is too much, the material on the surface of the pipeline is corroded, and the citric acid is wasted. At present, when the citric acid is used for cleaning the pipeline, the dosage of the citric acid is determined by the experience of a cleaner master, and the cleaning agent with corresponding dosage cannot be accurately added according to the thickness of the scale deposit by adopting a manual adding method.
Disclosure of Invention
In order to solve the above-mentioned problems in the background art, the present invention provides a pipe scale thickness detection probe and a pipe cleaning method, wherein the pipe scale thickness detection probe comprises an ultrasonic transmitter, an ultrasonic receiver, a calibrator, a base, a shrinking sidewall and a casing, wherein:
the ultrasonic transmitter, the calibrator and the ultrasonic receiver are sequentially arranged on one side of the shell, and the other side of the shell is connected with the contraction side wall; the ultrasonic receiver is connected to the base; the base is connected with a telescopic cable; the ultrasonic transmitter, the ultrasonic receiver and the telescopic cable are all in communication connection with the controller.
Furthermore, one side of the base is provided with a groove; a telescopic frame is arranged in the groove; the telescopic frame is in communication connection with the controller.
Further, the calibrator has a plate shape.
Furthermore, the inner wall of the shell is also provided with a wire pipe; the telescopic cable is arranged in the cable tube.
According to the pipe scale thickness detection probe provided by the invention, the ultrasonic transmitter and the ultrasonic receiver are arranged in the pipe, the ultrasonic waves are controlled to be obliquely incident to the scale surface, the ultrasonic waves are reflected and refracted, the distance between the incident point of the ultrasonic waves entering the scale and the first emergent point is measured through the ultrasonic receiver, and therefore the scale thickness is calculated. The pipe scale thickness detection probe provided by the invention has the advantages of simple structure, convenience in use and high measurement precision, and can be widely applied to pipe scale thickness measurement.
The invention also provides a pipeline cleaning method, which adopts the pipeline scale thickness detection probe, and comprises the following specific steps:
step one, arranging a detection probe in a pipeline;
inputting the type of the fouling, and determining the propagation speed of the ultrasonic waves in the fouling;
step three, starting a detection probe, and measuring the thickness of the accumulated scale;
step four, the detection probe transmits the accumulated scale thickness information to a dosing machine;
fifthly, controlling the adding time of 1-3 mol of medicament by a medicament adding machine, and automatically adding the medicament to a mixer of the cleaning machine;
step six, the cleaning machine extracts the mixed medicament from the mixer in the step five to clean the pipeline;
and step seven, after the pipeline is cleaned, the instrument is recovered and arranged.
Further, the method for measuring the thickness of the scale deposit in the third step comprises the following steps: obliquely irradiating ultrasonic waves to the surface of the scale deposit; measuring the distance between an incident point of the ultrasonic waves entering the scale and a first emergent point; and calculating the thickness of the scale by combining the propagation speed of the ultrasonic waves in the scale and the ultrasonic wave incidence angle.
Further, the calculation formula of the fouling thickness D is:
D＝L/2Tanθt1wherein, thetat1＝arc sin(C2/C1sinθi1) L is the distance between the point of incidence of the detected ultrasonic waves into the scale and the point of first emergence, θi1Angle of incidence for ultrasonic waves entering the scale, C1Is the propagation speed of ultrasonic waves in the air, C2Is the propagation velocity of ultrasonic waves in the scale.
Further, the specific steps for measuring the thickness of the scale are as follows:
firstly, determining the material of a pipeline, and setting an ultrasonic emission angle and energy;
step two, calibrating the ultrasonic receiver;
measuring the distance between an incident point of the ultrasonic waves entering the scale and a first emergent point, and calculating the thickness of the scale;
changing the incident angle and the incident position of the ultrasonic wave, and measuring the average scale thickness of the first point of the scale-pipeline interface;
changing the incident angle and the incident position of the ultrasonic wave, and measuring the average scale thickness of a second point of the scale-pipeline interface;
and step six, carrying out weighted average on the measurement results of the step four and the step five to obtain a fouling thickness value.
The pipeline cleaning method provided by the invention can effectively clean the accumulated scale of the pipeline, and the pipeline cannot be corroded in the cleaning process; the problem of in the current cleaning method artifical input medicament dosage inaccurate, lead to wasing not in place or corrode the pipeline is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic sectional view of a detecting probe for detecting the thickness of scale in a pipeline provided by the invention;
FIG. 2 is a schematic sectional view of a pipe scale thickness detection probe inside a pipe;
FIG. 3 is a schematic view of the detection principle of a pipe scale thickness detection probe;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Reference numerals:
10 ultrasonic transmitter 20 ultrasonic receiver 30 calibrator
40 base 41 expansion bracket 42 groove
50-line tube 60 converging side wall 70 housing
80 flex cable 90 armor layer 100 scale
110 pipeline
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a pipeline scale thickness detection probe and a pipeline cleaning method, wherein the pipeline scale thickness detection probe comprises an ultrasonic transmitter 10, an ultrasonic receiver 20, a calibrator 30, a base 40, a contraction side wall 60 and a shell 70, wherein:
the ultrasonic transmitter 10, the calibrator 30 and the ultrasonic receiver 20 are sequentially arranged on one side of the shell 70 along the length direction of the inner wall, and the contraction side wall 60 is connected to the other side; the ultrasonic receiver 20 is connected to the base 40; the base 40 is connected with a telescopic cable 80; the ultrasonic transmitter 10, the ultrasonic receiver 20 and the telescopic cable 80 are all in communication connection with the controller.
In specific implementation, as shown in fig. 1, the housing 70 is a tubular structure, one side of the housing 70 is sequentially provided with the ultrasonic transmitter 10, the calibrator 30 and the ultrasonic receiver 20, and the other side is connected with the contraction sidewall 60; the ultrasonic receiver 20 is connected to the base 40; the base 40 is connected with a telescopic cable 80, and the telescopic cable 80 drives the base 40 to do linear motion; the ultrasonic transmitter 10, the ultrasonic receiver 20 and the telescopic cable 80 are all in communication connection with the controller; the controller is a central controller of the detection probe.
When the thickness of the scale 100 is tested, as shown in FIG. 2, the side of the shell 70 provided with the ultrasonic transmitter 10 is close to the inner wall of the pipeline 110, so that the side wall of the shell 70 is parallel to the inner wall of the pipeline 110; the controller controls the contracting sidewall 60 at the other side of the contracting shell 70 to be in a contracting state; the controller controls the extension of the telescopic cable 80, and the telescopic cable 80 is connected with the base 40, so that the ultrasonic receiver 20 on the base 40 is driven to displace, and the ultrasonic receiver 20 can receive reflected and refracted ultrasonic waves at different positions;
during calibration, the ultrasonic transmitter 10 is provided with a light source, the controller controls the light emitting direction of the light source to be parallel to the side wall of the pipeline 110 and emit light towards the calibrator 30, the ultrasonic receiver 20 is provided with a light source sensor, the controller controls the lifting of the base 40 to firstly enable the light source sensor on the ultrasonic receiver 20 to be at the height capable of receiving the light source and then enable the light source sensor to descend at a constant speed until the light source sensor cannot receive the light source sensorA light source, which is a calibration position, wherein the receiving surface of the ultrasonic receiver 20 is parallel to the sidewall of the housing 70. from the foregoing, it can be seen that the housing 70 is parallel to the scale-pipe interface, and thus the receiving surface of the ultrasonic receiver 20 is parallel to the scale-pipe interface; the ultrasonic transmitter 10 emits ultrasonic waves at θi1The angle is incident to the air-scale interface, and the first reflection and the first refraction occur, and the first reflection is received by the ultrasonic receiver 20; the refracted sound wave continues to propagate and is reflected at the scale-pipe interface; the reflected light of the ultrasonic waves at the scale-pipeline interface is refracted for the second time at the scale-air interface, the direction of the first reflected ultrasonic wave is parallel to the direction of the second refracted ultrasonic wave according to the reflection and refraction laws of the ultrasonic waves, so that the distance between the two ultrasonic waves measured by the ultrasonic receiver 20 is the distance L between the first reflected point and the first refracted point of the ultrasonic waves at the scale interface, the ultrasonic receiver 20 transmits the measured distance information to the controller, and the controller transmits the information to the controller according to the formula D L/2Tan thetat1Wherein, thetat1＝arc sin(C2/C1sinθi1) L is the distance between the first reflection point and the first refraction point of the detected ultrasonic wave at the fouling interface, thetai1Is the ultrasonic incident angle, C1Is the propagation speed of ultrasonic waves in the air, C2Is the propagation velocity of the ultrasonic waves in the scale 100; the thickness of the scale 100 can be calculated, and the information of the thickness of the scale 100 can be output.
According to the pipe scale thickness detection probe provided by the embodiment of the invention, the ultrasonic transmitter and the ultrasonic receiver are arranged in the pipe, the ultrasonic waves are controlled to be obliquely incident to the scale surface, the ultrasonic waves are reflected and refracted, the distance between the incident point of the ultrasonic waves entering the scale and the first emergent point is measured through the ultrasonic receiver, and therefore the scale thickness is calculated. The pipe scale thickness detection probe provided by the invention has the advantages of simple structure, convenience in use and high measurement precision, and can be widely applied to pipe scale thickness measurement.
Preferably, a groove 42 is formed on one side of the base 40; an expansion bracket 41 is arranged in the groove 42; the telescopic frame 41 is in communication connection with the controller.
In specific implementation, a groove 42 is formed on one side of the base 40 opposite to the shell 70; the telescopic frame 41 is connected in the groove 42; the telescopic frame 41 is in communication connection with the controller; during test calibration, the controller controls the extension and retraction of the telescopic frame 41, thereby adjusting the angle of the receiving plane of the ultrasonic receiver 20 connected to the base 40.
Preferably, the calibrator has a plate shape.
Preferably, the inner wall of the housing 70 is further provided with a conduit 50; the retractable cable 80 is disposed within the conduit 50.
In specific implementation, the inner wall of the shell 70 is also provided with a conduit 50; the retractable cable 80 is disposed within the conduit 50; the ultrasonic transmitter 10 and the calibrator 30 are arranged on the outer wall of the conduit 50; the protective layer 90 is connected between the line pipe 50 and the inner side wall of the shell 70, both the protective layer 90 and the shell 70 are made of ultra-high molecular weight polyethylene material, and the protective layer 90 can prevent ultrasonic waves from being emitted from the area and avoid damaging instruments above the protective layer 90 and the shell 70.
The embodiment of the invention also provides a pipeline cleaning method, which adopts the pipeline scale deposit thickness detection probe, and comprises the following specific steps:
step one, arranging a detection probe in a pipeline;
inputting the type of the fouling, and determining the propagation speed of the ultrasonic waves in the fouling;
step three, starting a detection probe, and measuring the thickness of the accumulated scale;
step four, the detection probe transmits the accumulated scale thickness information to a dosing machine;
fifthly, controlling the adding time of 1-3 mol of medicament by a medicament adding machine, and automatically adding the medicament to a mixer of the cleaning machine;
step six, the cleaning machine extracts the mixed medicament from the mixer in the step five to clean the pipeline;
and step seven, after the pipeline is cleaned, the instrument is recovered and arranged.
Preferably, the method for measuring the thickness of the scale in the third step is as follows: obliquely irradiating ultrasonic waves to the surface of the scale deposit; measuring the distance between an incident point of the ultrasonic waves entering the scale and a first emergent point; and calculating the thickness of the scale by combining the propagation speed of the ultrasonic waves in the scale and the ultrasonic wave incidence angle.
Preferably, the calculation formula for the fouling thickness D is:
D＝L/2Tanθt1wherein, thetat1＝arc sin(C2/C1sinθi1) L is the distance between the point of incidence of the detected ultrasonic waves into the scale and the point of first emergence, θi1Angle of incidence for ultrasonic waves entering the scale, C1Is the propagation speed of ultrasonic waves in the air, C2Is the propagation velocity of ultrasonic waves in the scale.
In specific implementation, as shown in fig. 3 and 4, according to the law of reflection: thetai1＝θr1(ii) a The first incident angle of the ultrasonic wave on the ultrasonic wave receiving interface is theta1Since the air-fouling interface is parallel to the ultrasonic wave receiving interface, θ can be known1＝θi1；
According to the law of refraction: sin thetai1/C1＝sinθt1/C2(ii) a The refraction angle of the ultrasonic wave is obtained to be thetat1＝arc sin(C2/C1sinθi1)，θt1Is the first angle of refraction of the ultrasonic waves at the air-scale interface; then, according to the law of reflection, the first reflection angle theta of the ultrasonic wave at the interface of the scale and the pipeline is knowni2＝θt1(ii) a The ultrasonic wave continues to refract at the scale-air interface at an incident angle thetai3According to the law of refraction, the second refraction angle of the ultrasonic waves at the scale-air interface is thetat2And thetat2＝θi1(ii) a It can be seen that the second incident angle of the ultrasonic wave on the ultrasonic wave receiving interface is θ2And theta2＝θt2＝θi1(ii) a As can be seen, θ1＝θ2＝θi1The two sound waves received by the ultrasonic receiving interface are parallel, and the incident point distance of the two sound waves on the ultrasonic receiving interface is L. From the geometrical relationship, L is equal to the distance between the point of incidence of the ultrasonic waves into the scale and the point of first exit. And obtaining the thickness of the scale deposit as D ═ L/2Tan theta by a trigonometric formulat1Wherein, thetat1＝arc sin(C2/C1sinθi1) L is the distance between the point of incidence of the detected ultrasonic waves into the scale and the point of first emergence, θi1Angle of incidence for ultrasonic waves entering the scale, C1Is the propagation speed of ultrasonic waves in the air, C2Is the propagation velocity of ultrasonic waves in the scale.
Preferably, before cleaning the pipeline, the surface of the scale deposit is sprayed;
if the surface of the scale in the pipeline is rough and uneven, before the thickness detection of the scale, the surface of the scale is sprayed, and the refractive index of the spraying coating is the same as that of the scale and can be corroded by a cleaning agent; the rough and uneven surface of the scale is filled by filling the coating with the same refractive index as that of the scale on the surface of the scale, so that the aim of leveling the surface of the scale is fulfilled; specifically, a coating nozzle is extended into a pipeline needing dirt thickness detection, the coating is pressurized through a plunger pump of a spraying machine, the obtained high-pressure coating is conveyed to the nozzle through a high-pressure hose, the pressure is released through the nozzle to form atomization, and therefore a uniform coating is formed on the surface of the inner wall of the pipeline.
Preferably, the specific steps for measuring the thickness of the scale are as follows:
firstly, determining the material of a pipeline, and setting an ultrasonic emission angle and energy; in the step, the ultrasonic frequency and amplitude are selected and set according to different pipeline materials, so that the pipeline structure is prevented from being damaged due to excessive ultrasonic energy;
step two, calibrating the ultrasonic receiver; in the step, the ultrasonic receiver is calibrated, so that the ultrasonic receiving interface is parallel to the side wall of the pipeline, and the distance measured by the ultrasonic receiving interface is equal to the distance between the incident point of the ultrasonic waves entering the scale deposits and the first emergent point.
Measuring the distance between an incident point of the ultrasonic waves entering the scale and a first emergent point, and calculating the thickness of the scale;
changing the incident angle and the incident position of the ultrasonic wave, and measuring the average scale thickness of the first point of the scale-pipeline interface; as shown in fig. 3, the first point is point B; in the step, the incidence angle and the incidence position of the ultrasonic wave are changed for multiple times, so that the reflection points of the ultrasonic wave on the scale-pipeline interface are all first points, and the scale thickness at the first points is measured for multiple times, so as to reduce errors;
changing the incident angle and the incident position of the ultrasonic wave, and measuring the average scale thickness of a second point of the scale-pipeline interface; as shown in fig. 3, the second point is point C, and the first point and the second point are two different points;
in the step, reflecting points of the ultrasonic waves on a scale-pipeline interface are all second points by changing the incident angle and the incident position of the ultrasonic waves for multiple times, so that the scale thickness at the second points is measured for multiple times, and the measuring result is more accurate;
and step six, carrying out weighted average on the measurement results of the step four and the step five to obtain a fouling thickness value.
According to the pipeline cleaning method provided by the embodiment of the invention, the thickness of the accumulated scale is calculated by measuring the distance between the incident point of the ultrasonic wave entering the accumulated scale and the first emergent point by utilizing the reflection and refraction principles of the ultrasonic wave after the ultrasonic wave is incident to the accumulated scale; by setting different incident angles and positions of the ultrasonic waves, the fouling thicknesses of the ultrasonic waves at the same position and different positions of the fouling-pipeline interface are measured for multiple times, so that the average fouling thickness is obtained, and the measurement result is accurate.
The invention provides 5 groups of pipelines to be tested, and the pipeline scale deposit thickness detection probe provided by the invention is adopted to measure the pipeline scale deposit thickness and uses a vernier caliper to measure and test.
The detection results of 5 groups of pipelines to be detected are shown in table 1:
TABLE 1
As shown in table 1, the results of measuring the thickness of the scale in the pipeline 1 to be measured, the pipeline 2 to be measured, the pipeline 4 to be measured and the pipeline 5 to be measured are all consistent with the results of the vernier caliper test by using the pipeline scale thickness measuring probe provided by the present invention; the measurement result in the pipeline 3 to be measured is 3.61mm, the measurement result is 3.6mm by using a vernier caliper, and an error of 0.01mm exists, but as is known, the error is inevitable, and the error of 0.01mm belongs to a reasonable error range in the test. Therefore, the pipe scale thickness detection probe provided by the invention has high measurement precision.
The invention provides 5 groups of embodiments, the pipeline cleaning method provided by the invention is adopted for cleaning, and the cleaning degree of pipeline scale deposit and the corrosion condition of the pipeline surface are checked;
the invention provides a 5-group proportion, which is used for cleaning by adopting the existing cleaning method and checking the cleaning degree of the pipe scale and the corrosion condition of the surface of the pipe;
the invention provides that the thickness of the pipe scale cleaned in the example 1 and the comparative example 1 is 1 mm; the thickness of the pipe scale cleaned in the example 2 and the comparative example 2 is 2 mm; the thickness of the pipe scale cleaned in the example 3 and the comparative example 3 is 3.5 mm; the thickness of the pipe scale cleaned in the example 4 and the comparative example 4 is 5 mm; the thickness of the pipe scale cleaned in the example 5 and the comparative example 5 is 7 mm; when the pipeline cleaning method provided by the invention is adopted for cleaning, the detection probe does not store the relevant fouling thickness information, and an operator does not know the fouling thickness information; meanwhile, operators do not know the information of the thickness of the scale before the cleaning by the existing cleaning method.
The test results of the examples and comparative examples are shown in table 2:
TABLE 2
Comparing the examples to the comparative examples, only the residual thickness of the scale in example 4 was 0.01mm, and 0.01mm was within a reasonable margin of error in this test, with the residual thickness of the scale in example 1, example 2, example 3, and example 5 being 0; therefore, the pipeline cleaning method provided by the invention can be used for effectively cleaning the scale on the pipeline; in addition, the pipeline corrosion thickness in each embodiment is 0, so that the pipeline cleaning method provided by the invention has no corrosion to the cleaning pipeline;
while the residual thicknesses of the scale in comparative example 1 and comparative example 2 were 0.1mm and 0.05mm, respectively, and the pipe corrosion thicknesses in comparative example 3, comparative example 4, and comparative example 5 were 0.1mm, 0.15mm, and 0.3mm, respectively; comparing the comparative ratio with the inspection results of each embodiment, the method adopts the existing cleaning method to clean the pipe scale, and the cleaned pipe surface has scale residue with a certain thickness or the pipe is corroded due to excessive dosage of the medicament; by adopting the pipeline cleaning method provided by the invention, the surface of the cleaned pipeline has no accumulated scale residue and does not corrode the pipeline; therefore, the pipeline cleaning method provided by the invention can effectively solve the problems of scale residue or pipeline corrosion in the existing cleaning method.
The pipeline cleaning method provided by the embodiment of the invention can effectively clean the accumulated scale of the pipeline, and the pipeline cannot be corroded in the cleaning process; the problem of in the current cleaning method artifical input medicament dosage inaccurate, lead to wasing not in place or corrode the pipeline is solved.
Although terms such as ultrasonic transmitter, ultrasonic receiver, calibrator, base, telescopic frame, groove, conduit, shrink sidewall, housing, telescopic cable, shielding, scale, pipe, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A method for cleaning a pipeline, comprising: adopt pipeline scale deposit thickness test probe, pipeline scale deposit thickness test probe includes ultrasonic transmitter, ultrasonic receiver, calibrator, base, shrink lateral wall and casing, wherein:
the ultrasonic transmitter, the calibrator and the ultrasonic receiver are sequentially arranged on one side of the shell, and the other side of the shell is connected with the contraction side wall; the ultrasonic receiver is connected to the base; the base is connected with a telescopic cable; the ultrasonic transmitter, the ultrasonic receiver and the telescopic cable are all in communication connection with the controller;
the cleaning method comprises the following specific steps:
if the scale surface in the pipeline is rough and uneven, spraying the scale surface before detecting the thickness of the scale, wherein the refractive index of the spraying coating is the same as that of the scale;
step one, arranging a detection probe in a pipeline;
inputting the type of the fouling, and determining the propagation speed of the ultrasonic waves in the fouling;
step three, starting a detection probe, and measuring the thickness of the accumulated scale;
step four, the detection probe transmits the accumulated scale thickness information to a dosing machine;
fifthly, controlling the adding time of 1-3 mol of medicament by a medicament adding machine, and automatically adding the medicament to a mixer of the cleaning machine;
step six, the cleaning machine extracts the mixed medicament from the mixer in the step five to clean the pipeline;
step seven, after the pipeline is cleaned, the instrument is recovered and arranged;
the method for measuring the thickness of the scale deposit in the third step comprises the following steps: obliquely irradiating ultrasonic waves to the surface of the scale deposit; measuring the distance between an incident point of the ultrasonic waves entering the scale and a first emergent point; calculating the thickness of the scale deposit by combining the propagation speed of the ultrasonic wave in the scale deposit and the ultrasonic wave incident angle;
the calculation formula of the fouling thickness D is as follows:
d is L/2Tan θ t1, where θ t1 is arcsin (C2/C1sin θ i1), L is the distance between the incident point and the first exit point of the detected ultrasonic wave entering the scale, θ i1 is the incident angle of the ultrasonic wave entering the scale, C1 is the propagation velocity of the ultrasonic wave in the air, and C2 is the propagation velocity of the ultrasonic wave in the scale.
2. The pipe cleaning method according to claim 1, wherein: one side of the base is provided with a groove; a telescopic frame is arranged in the groove; the telescopic frame is in communication connection with the controller.
3. The pipe cleaning method according to claim 1, wherein: the calibrator has a plate shape.
4. The pipe cleaning method according to claim 1, wherein: the inner wall of the shell is also provided with a wire pipe; the telescopic cable is arranged in the cable tube.
5. The pipe cleaning method according to claim 1, wherein: the specific steps for measuring the thickness of the scale are as follows:
firstly, determining the material of a pipeline, and setting an ultrasonic emission angle and energy;
step two, calibrating the ultrasonic receiver;
measuring the distance between an incident point of the ultrasonic waves entering the scale and a first emergent point, and calculating the thickness of the scale;
changing the incident angle and the incident position of the ultrasonic wave, and measuring the average scale thickness of the first point of the scale-pipeline interface;
changing the incident angle and the incident position of the ultrasonic wave, and measuring the average scale thickness of a second point of the scale-pipeline interface;
and step six, carrying out weighted average on the measurement results of the step four and the step five to obtain a fouling thickness value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697124.3A CN107504926B (en) | 2017-08-15 | 2017-08-15 | Pipeline scale deposit thickness detection probe and pipeline cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697124.3A CN107504926B (en) | 2017-08-15 | 2017-08-15 | Pipeline scale deposit thickness detection probe and pipeline cleaning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504926A CN107504926A (en) | 2017-12-22 |
| CN107504926B true CN107504926B (en) | 2020-11-24 |
Family
ID=60690756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710697124.3A Active CN107504926B (en) | 2017-08-15 | 2017-08-15 | Pipeline scale deposit thickness detection probe and pipeline cleaning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504926B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917667B (en) * | 2018-06-29 | 2020-09-11 | 北京航星机器制造有限公司 | Three-dimensional scanning-based method for measuring inner surface of narrow deep cavity of casting |
| KR102645311B1 (en) * | 2018-08-13 | 2024-03-08 | 삼성디스플레이 주식회사 | Apparatus for measuring sample thickness and method for measuring sample thickness |
| CN112814622B (en) * | 2021-01-25 | 2022-04-22 | 西南石油大学 | Device for carrying out mixed descaling and corrosion degree detection on oil and gas well and application method thereof |
| CN113305098B (en) * | 2021-05-25 | 2022-11-29 | 云南电网有限责任公司电力科学研究院 | Detection and removal device for scale sample of voltage-sharing electrode and use method |
| CN114111657A (en) * | 2021-11-11 | 2022-03-01 | 国网辽宁省电力有限公司检修分公司 | System for detecting scaling thickness of voltage-sharing electrode and operation method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB714031A (en) * | 1951-12-17 | 1954-08-18 | Sperry Prod Inc | Improvements in or relating to ultrasonic device for measuring the thickness of objects |
| GB1501614A (en) * | 1974-01-21 | 1978-02-22 | Ross Lar | Method of internal lining and sealing of buried pipeline |
| CN1103336A (en) * | 1993-12-02 | 1995-06-07 | 朱几 | Method of chemically cleaning pipeline |
| CN102183229B (en) * | 2011-02-25 | 2012-07-11 | 武汉大学 | Ultrasonic detection method of scale thickness in pipeline |
| CN103292754B (en) * | 2013-07-06 | 2016-02-03 | 河北联合大学 | Multi-medium-layer ultrasonic thickness test method |
| CN106513390B (en) * | 2016-12-20 | 2022-06-07 | 鞍钢栗田(鞍山)水处理有限公司 | Pipeline cleaning method and remote control rotary cleaning type pipeline cleaning robot used in same |
| CN107971309B (en) * | 2018-01-04 | 2023-08-18 | 江苏艾福利环保材料科技有限公司 | Pipeline cleaning head |
-
2017
- 2017-08-15 CN CN201710697124.3A patent/CN107504926B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107504926A (en) | 2017-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107504926B (en) | Pipeline scale deposit thickness detection probe and pipeline cleaning method | |
| US8117918B2 (en) | Method and apparatus for determining pipewall thickness using one or more ultrasonic sensors | |
| KR102251819B1 (en) | Device and method for non-destructive control of tubular products using electroacoustic phased networks, in particular on site | |
| US7231314B2 (en) | Method and apparatus for measuring wall thickness, ovality of tubular materials | |
| US7140253B2 (en) | Device for the ultrasound measuring of cylindrical test models | |
| ATE554708T1 (en) | FAST AND ACCURATE DETECTION OF BONE QUALITY WITH ULTRASONIC CRITICAL ANGLE REFLECTOMETRY | |
| WO2012033001A1 (en) | Ultrasonic flaw detection device for pipe end and method for setting initial position of probe holder | |
| CN109781860B (en) | Reference block and calibration method | |
| US7240554B2 (en) | Method and device for sizing a crack in a workpiece using the ultrasonic pulse-echo technique | |
| WO2019097055A1 (en) | Device and method for detecting deposition layers in a conduit conducting a liquid or a soft medium and/or for level detection | |
| JP2001124612A (en) | Device for determining physical value of liquid or solid medium | |
| JP2010256339A (en) | Ultrasound flaw detecting device for pipe ends, and initial-position setting method for probe holder | |
| KR101934069B1 (en) | Liquid level measuring equipment | |
| CN112484836A (en) | Ultrasonic probe device and workpiece sound velocity measurement method | |
| CN105486381A (en) | Sound wave water level gauge | |
| US20070044560A1 (en) | Method and system for determining structural features of an acoustic material | |
| JP3501948B2 (en) | Ultrasonic corrosion diagnostic method and its equipment. | |
| JP3810661B2 (en) | Defect detection method for piping | |
| CN210833771U (en) | Water level measuring device | |
| CN214951566U (en) | Reflecting surface improved ultrasonic flowmeter | |
| KR102179231B1 (en) | Ultrasonic wave apparatus for measure of distance | |
| JPH05126552A (en) | Method for measuring thickness of coating film | |
| RU2419074C1 (en) | Ultrasonic level gauge | |
| CN206223117U (en) | The jackstone real-time measurement system of stone dumper | |
| CN104655203A (en) | Ultrasonic water meter with pH value detection and anti-scaling functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200713 Address after: 10th floor, No.99 anling 2nd Road, Huli District, Xiamen City, Fujian Province 361000 Applicant after: XIAMEN RICUN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 361115 North 202A room C, block No. 96, Jianyan Road, Xiang Xing Road, Xiamen torch high tech Zone (Xiangan), Fujian Province, Fujian Applicant before: XIAMEN HAINADE TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |