CN114152648A - Glass lining online damage detection device and detection method thereof - Google Patents
Glass lining online damage detection device and detection method thereof Download PDFInfo
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- CN114152648A CN114152648A CN202111538042.7A CN202111538042A CN114152648A CN 114152648 A CN114152648 A CN 114152648A CN 202111538042 A CN202111538042 A CN 202111538042A CN 114152648 A CN114152648 A CN 114152648A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/20—Investigating the presence of flaws
- G01N27/205—Investigating the presence of flaws in insulating materials
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Abstract
The invention belongs to the technical field of glass lining detection, and is used for solving the problems that the existing glass lining damage detection device is time-consuming and labor-consuming in damage detection and has great use limitation because the existing glass lining damage detection device cannot detect enamel equipment in the using process, and particularly relates to an online glass lining damage detection device and a detection method thereof, wherein the detection probe is inserted into the enamel equipment to be detected and comprises an inner second enamel layer and an outer second metal carrier layer, a third electrode is arranged on the outer wall of the second metal carrier layer, the detection probe comprises an inner first metal carrier layer and an outer first enamel layer, and a first electrode and a second electrode are arranged on the first enamel layer; the invention can avoid the influence on the accuracy of the glass lining damage analysis result due to the damage of the detection probe, saves time and labor in the detection process, has more accurate detection result, can detect the enamel equipment in the using process, and has small use limit of the detection device.
Description
Technical Field
The invention relates to the technical field of glass lining detection, in particular to a glass lining online damage detection device and a detection method thereof.
Background
Enamel as a substance of strong acid and strong alkali resistance and high corrosion resistance organic solvent has irreplaceable effects in the chemical industry and the medical field, but the enamel as a non-stable state of a glass product is determined to have the fragile characteristic of glass, if the enamel crystal cannot bear stress change and crack damage and even porcelain explosion are generated due to the rapid change of external factors such as temperature, pressure and the like in the production process, the production raw materials are polluted and scrapped if the enamel crystal is light, and the direct corrosion of production equipment is caused to cause major accidents if the enamel crystal is damaged;
due to the high impedance characteristic of enamel, the impedance value of enamel is generally larger than 1x109OHM, even up to 1x1014The traditional damage detection method has the advantages that after production is stopped, an enamel surface is cleaned, a high-voltage electric spark device (usually the voltage is more than 1000V) is used for carrying out high-voltage discharge and scanning on the enamel surface, and whether cracks or damages exist or not is detected, so that the method is time-consuming and labor-consuming, changes of chemical reactions of substances can be caused due to high voltage, explosion is extremely easy to cause, and great use limitation is brought to the situation that enamel equipment cannot be detected in the using process;
in view of the above technical drawbacks, a solution is proposed.
Disclosure of Invention
The invention aims to provide an online damage detection device and a detection method for glass lining, which can automatically analyze the condition of a detection probe before the damage analysis of the glass lining by arranging the detection probe, avoid the influence on the accuracy of the damage analysis result of the glass lining due to the damage of the detection probe, save time and labor in the detection process, ensure more accurate detection result, detect the enamel equipment in the using process, have small use limit of the detection device, adjust and fix the position of the detection probe, do not need to manually fix the detection probe during the detection, have simple operation, save time and labor, contribute to the stability of the detection process, further improve the accuracy of the detection result, and solve the problems that the existing glass lining damage detection device is time-consuming and labor-consuming in the damage detection process and can not detect the enamel equipment in the using process, there is a problem of great use limitation.
In order to achieve the purpose, the invention provides the following technical scheme:
the detection probe is in communication connection with the wireless control terminal in a wireless transmission mode and is inserted into the enamel equipment to be detected, the enamel equipment to be detected comprises an inner layer and an outer layer, the inner layer is a second enamel layer, the outer layer is a second metal carrier layer, a third electrode is mounted on the outer wall of the second metal carrier layer, the detection probe comprises an inner layer and an outer layer, the inner layer is a first metal carrier layer, the outer layer is a first enamel layer, a first electrode and a second electrode are mounted on the first enamel layer, electrode outgoing lines are mounted on the first electrode and the second electrode, the surface part of the first electrode is exposed out of the first enamel layer, and the second electrode is sealed in the first enamel layer;
the detection probe is provided with a processor, the processor is in communication connection with a data acquisition module, a probe self-checking module and a glass lining damage analysis module, and the data acquisition module is used for acquiring self-checking data and glass lining damage test data of the detection probe and sending the self-checking data and the glass lining damage test data to the processor; the processor sends the self-checking data to the probe self-checking module, and sends the glass lining damage test data to the glass lining damage analysis module, and the probe self-checking module is used for performing self-checking analysis based on the obtained self-checking data, judging whether the detection probe is normal or not, and sending a judgment signal back to the processor; and the glass lining breakage analysis module is used for performing calculation analysis based on the obtained glass lining breakage test data, judging whether the enamel equipment to be detected is broken or not and sending a judgment signal back to the processor.
Furthermore, the built-in accurate constant voltage source of test probe and the accurate resistance benchmark of 100Mohm, first electrode and second electrode pass through sintering technique encapsulation, and first electrode adopts platinum-rhodium alloy material to make, and the second electrode adopts pure platinum metal material to make, the exposed area of first electrode is Qm, and 1.766mm2＜Qm＜7.065mm2Between the first electrode and the second electrodeThe vertical distance between the two is h, and h is more than 5mm and less than 20 mm.
Further, the probe self-checking module performs self-checking analysis based on the obtained self-checking data, determines whether the detection probe is normal, and sends a determination signal back to the processor, wherein the specific analysis and determination process is as follows:
acquiring self-checking data acquired by a data acquisition module, wherein the self-checking data comprise a current signal on a second electrode and an excitation signal loaded on a first electrode, and calculating a resistance impedance value between the first electrode and the second electrode by analyzing and calculating according to ohm's law; amplifying and filtering the calculated resistance impedance value, and comparing the processed resistance impedance value with a built-in 100Mohm precision resistance standard;
if the resistance value is smaller than the precision resistance reference value, the probe self-checking module outputs a probe damage signal to the processor, and if the resistance value is larger than the precision resistance reference value, the probe self-checking module outputs a probe self-checking normal signal to the processor, and then the next glass lining damage analysis operation is carried out.
Further, the enamel glass breakage analysis module carries out calculation analysis based on the obtained enamel glass breakage test data, judges whether the enamel equipment to be detected is broken or not, and sends a judgment signal back to the processor, wherein the specific judgment analysis process is as follows:
obtaining glass lining breakage test data acquired by a data acquisition module, wherein the glass lining breakage test data comprise input signals of a second electrode and input signals of a third electrode, and are respectively marked as Tp and Ts;
based on the obtained glass lining breakage test data and according to an analysis formula
Analyzing and calculating a breakage analysis value PQR, if the PQR is larger than PQR2, judging that the enamel equipment to be detected is not broken, and outputting an enamel normal signal to the processor, if the PQR is smaller than PQR1, judging that the enamel equipment to be detected is broken, and outputting an enamel breakage signal to the processor, if the PQR1 is smaller than or equal to the PQR2, judging that the enamel equipment to be detected is brokenThe method comprises the following steps that the enamel equipment to be detected is possibly provided with micro cracks or is about to reach a damaged critical state, and an enamel pre-alarm signal is output to a processor;
here, PQR1 and PQR2 are preset damage condition determination thresholds, and PQR1 < PQR 2.
Further, the top of test probe is through installing the first electric telescopic handle of vertical setting, the one end that test probe was kept away from to first electric telescopic handle is connected the fixed block, the second electric telescopic handle that the level set up is installed to the lateral wall of fixed block, and the one end that the fixed block was kept away from to second electric telescopic handle is connected and is stabilized the centre gripping subassembly.
Further, the stable clamping assembly comprises a clamping box, a connecting shaft, a gear, a movable plate, a limiting opening, a guide shaft, a connecting rod, a clamping block and a driving motor, wherein the driving motor is fixedly installed in the clamping box through a motor base, the output end of the driving motor is provided with the connecting shaft, and the gear is arranged on the connecting shaft; the movable plates comprise an upper group and a lower group, and the two groups of movable plates are positioned at two sides in the clamping box;
the inner wall fixed mounting of centre gripping box has the guiding axle that the level set up, the guide way has been seted up to correspondence on the fly leaf, and the guiding axle inserts in the guide way that corresponds, and is two sets of all through the rack that bolt fixed mounting has the level to set up on the fly leaf, and the gear passes through the rack and is connected with the meshing of two sets of fly leaves, and is two sets of the connecting rod is all installed to the bottom of fly leaf, the grip block is installed to the bottom of connecting rod, and the bottom correspondence of centre gripping box sets up the spacing opening that supplies the connecting rod to pass.
Further, it is two sets of the one side that the grip block is relative all is equipped with the skid resistant course, the gear is equipped with the multiunit on the connecting axle, and corresponds on the fly leaf and be equipped with the multiunit rack, the multiunit guide way has been seted up on the fly leaf, and the both sides inner wall of centre gripping box all corresponds installs the multiunit guiding axle.
Furthermore, the wireless control terminal comprises terminal equipment, a display screen, control keys and a handheld assembly, wherein the display screen and the control keys are installed on the front face of the terminal equipment, and the handheld assembly is installed at the bottom of the terminal equipment; the handheld assembly comprises a handheld handle, a connecting block, a through hole, a sponge ring and a sponge sleeve, the handheld handle is vertically arranged and is fixed with the terminal equipment through bolts, the sponge sleeve is arranged on the outer surface of the handheld handle, the connecting block is fixedly arranged on the outer wall of the handheld handle through the bolts, four groups of through holes for fingers to pass are formed in the connecting block, and the sponge ring is arranged in the through holes.
Furthermore, the bottom of handheld handle is equipped with the elasticity rope, the one end that handheld handle was kept away from to the elasticity rope is equipped with elasticity and prevents losing the ring, and elasticity prevents losing the ring and is used for the cover on operating personnel's wrist.
Further, the method comprises the following steps:
inserting a detection probe into the enamel equipment to be detected, inserting a first electrode into the enamel equipment to be detected along with the detection probe and exposing the first electrode in the enamel equipment to be detected, sealing a second electrode in a first enamel layer without contacting the enamel equipment to be detected, connecting a third electrode to the outer side of the enamel equipment to be detected, and directly conducting the third electrode and the first electrode due to the existence of a second enamel layer;
step two, adjusting and fixing the position of the detection probe, and generating six groups of precise alternating current signals with different frequencies by using a built-in precise constant voltage source to serve as excitation signals after the preparation operation is finished; and the built-in 100Mohm precision resistance reference is used as a feedback signal to ensure that the precision of the output excitation signal is not less than +/-1 ppm;
loading six groups of excitation signals on the electrode A in sequence, collecting a current signal of the electrode B, analyzing and calculating by a probe self-checking module through ohm's law, and calculating a resistance impedance value between the first electrode and the second electrode; amplifying and filtering the calculated resistance impedance value, and comparing the processed resistance impedance value with a built-in 100Mohm precision resistance standard;
if the resistance value is smaller than the precision resistance reference value, the probe self-checking module outputs a probe damage signal to the processor and stops performing the next operation, and if the resistance value is larger than the precision resistance reference value, the probe self-checking module outputs a probe self-checking normal signal to the processor and performs the next step;
inputting the current signal of the second electrode into a buffer, performing full-wave precise rectification and transformation on the signal, converting the current signal of the second electrode into a direct-current voltage signal by using an I-V circuit, and inputting the direct-current voltage signal into one input end of a comparator;
collecting a current signal of a third electrode, performing integration, amplification and filtering processing on the current signal, converting a direct current component of the third electrode into a direct current voltage signal by using an I-V circuit, and inputting the direct current voltage signal into the other input end of the comparator;
step five, the enamel glass breakage analysis module obtains the input signal of the second electrode and the input signal of the third electrode, respectively marks the input signals as Tp and Ts, compares the two input signals by using a comparator, and compares the two input signals according to an analysis formula
Analyzing and calculating to obtain a breakage analysis value PQR; and obtaining preset breakage condition judgment thresholds PQR1 and PQR2, PQR1 < PQR 2;
if the PQR is larger than the PQR2, judging that the enamel equipment to be detected is not damaged, and outputting an enamel normal signal to the processor, if the PQR is smaller than the PQR1, judging that the enamel equipment to be detected is damaged, and outputting an enamel damage signal to the processor, if the PQR1 is smaller than or equal to the PQR2, judging that the enamel equipment to be detected possibly has a micro crack or is about to reach a critical state of damage, and outputting an enamel pre-alarm signal to the processor (in the specific use process, repeating the steps three to five for each group of excitation signals, so as to help to eliminate interference signals);
and step six, the processor sends the glass lining damage detection result to the wireless control terminal, and the display screen displays the glass lining detection result.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, a detection probe is inserted into enamel equipment to be detected, six groups of precise alternating current signals with different frequencies are generated by using a built-in precise constant voltage source and are used as excitation signals, the six groups of excitation signals are sequentially loaded on an electrode A, a current signal of an electrode B is collected, a probe self-detection module calculates a resistance impedance value between a first electrode and a second electrode through an ohm law, and whether the detection probe is normal or not is judged by comparing the resistance impedance value with a built-in precise resistance standard, so that the condition of the detection probe can be automatically analyzed before the damage analysis of enamel glass, and the influence on the accuracy of an enamel glass damage analysis result due to the damage of the detection probe is avoided;
2. in the invention, the enamel glass breakage analysis module is used for analyzing and calculating to obtain a breakage analysis value, and the breakage analysis value is compared with the breakage condition judgment threshold value to determine whether the enamel equipment to be detected is normal, broken or possible to have micro cracks (to reach the critical state of breakage), so that the detection process is time-saving and labor-saving, the detection result is more accurate, the enamel equipment in the using process can be detected, and the use limit of the detection device is small;
3. according to the invention, by arranging the first electric telescopic rod, the second electric telescopic rod and the stable clamping assembly, the position of the detection probe can be adjusted and fixed before detection is carried out, the detection probe is not required to be manually fixed during detection, the operation is simple, time and labor are saved, the stability of the detection process is facilitated, and the accuracy of the detection result is improved;
4. according to the invention, the wireless control terminal is arranged to control the detection process and display the detection data and the detection result, and the handheld assembly and the elastic anti-lost ring are arranged to further prevent the terminal equipment from falling onto the ground, so that the terminal equipment is effectively prevented from being damaged due to falling to the ground, and the protective performance is better.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the inspection probe of the present invention;
FIG. 3 is a schematic structural diagram of an enamel device to be detected in the invention;
FIG. 4 is a system block diagram of a detection probe of the present invention;
FIG. 5 is a schematic view of the connection of the detection probe, the first electric telescopic rod, the second electric telescopic rod and the stabilizing clamping assembly of the present invention;
FIG. 6 is a schematic structural view of the stabilizing clamping assembly of FIG. 5;
FIG. 7 is a schematic connection diagram (top view) of the drive motor, connecting shaft, gear, movable plate and rack in the stabilizing clamping assembly;
FIG. 8 is a schematic structural diagram of a wireless control terminal according to the present invention;
fig. 9 is a schematic structural diagram of the handheld assembly of fig. 8.
Reference numerals: 1. detecting a probe; 2. enamel equipment to be detected; 3. a fixed block; 4. a first electric telescopic rod; 5. a second electric telescopic rod; 6. stabilizing the clamping assembly; 7. a wireless control terminal; 11. a first enamel layer; 12. a first metal carrier layer; 13. a first electrode; 14. a second electrode; 15. an electrode lead-out wire; 21. a second metal carrier layer; 22. a second enamel layer; 23. a third electrode; 61. a clamping box; 62. a connecting shaft; 63. a gear; 64. a movable plate; 641. a rack; 642. a guide groove; 65. limiting the opening; 66. a guide shaft; 67. a connecting rod; 68. a clamping block; 681. an anti-slip layer; 69. a drive motor; 71. a terminal device; 72. a display screen; 73. a control key; 74. a handheld assembly; 741. a handle; 742. connecting blocks; 743. a through hole; 744. a sponge ring; 745. a sponge sleeve; 75. an elastic anti-lost ring; 76. an elastic cord.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 first embodiment is as follows:
as shown in figures 1-4, the on-line damage detection device for enamel glass provided by the invention comprises a detection probe 1 and a wireless control terminal 7, wherein the detection probe 1 is in communication connection with the wireless control terminal 7 in a wireless transmission mode, the wireless control terminal 7 is used for controlling the detection process and displaying the detection data and detection results, the use is facilitated, the detection probe 1 is inserted into an enamel device 2 to be detected (due to the requirement of the detection principle, the material filled in the enamel device 2 to be detected needs to have conductivity, and the conductivity parameter of the filler can be detected and obtained through a conductivity meter to judge whether the material is applicable), the enamel device 2 to be detected comprises an inner layer and an outer layer, the inner layer is a second enamel layer 22, the outer layer is a second metal carrier layer 21, a third electrode 23 is arranged on the outer wall of the second metal carrier layer 21, and the detection probe 1 comprises an inner layer and an outer layer, The outer two-layer, and the inlayer is first metal carrier layer 12, and the skin is first enamel layer 11, installs first electrode 13 and second electrode 14 on the first enamel layer 11, all installs electrode lead-out wire 15 on first electrode 13 and the second electrode 14, and the surface part of first electrode 13 exposes outside first enamel layer 11, and the exposed area of first electrode 13 is Qm, and 1.766mm2＜Qm＜7.065mm2The second electrode 14 is sealed in the first enamel layer 11, and the third electrode 23 and the first electrode 13 are not directly conducted due to the existence of the second enamel layer 22; the detection probe 1 is internally provided with a precise constant voltage source and a 100Mohm precise resistance reference, a first electrode 13 and a second electrode 14 are packaged by a sintering technology, the first electrode 13 is made of a platinum-rhodium alloy material, the second electrode 14 is made of a pure platinum metal material, and the second electrode 14 is made of a pure platinum metal, so that the detection probe can be used as a temperature detection element for detecting the temperature inside enamel equipment, can be used as a temperature display and a temperature compensation signal, the vertical distance between the first electrode 13 and the second electrode 14 is h (shown in figure 2), and 5mm < h < 20 mm;
the detection probe 1 is provided with a processor, the processor is in communication connection with a data acquisition module, a probe self-detection module and a glass lining damage analysis module, the data acquisition module is used for acquiring self-detection data and glass lining damage test data of the detection probe 1, the self-detection data comprises a current signal on the second electrode 14 and an excitation signal loaded on the first electrode 13, the glass lining damage test data comprises an input signal of the second electrode 14 and an input signal of the third electrode 23, and the self-detection data and the glass lining damage test data are sent to the processor; the processor sends the self-checking data to the probe self-checking module, and sends the glass lining damage test data to the glass lining damage analysis module, and the probe self-checking module is used for performing self-checking analysis based on the obtained self-checking data, judging whether the detection probe 1 is normal or not, and sending a judgment signal back to the processor; the enamel glass breakage analysis module is used for carrying out calculation analysis based on the obtained enamel glass breakage test data, judging whether the enamel equipment 2 to be detected is broken or not and sending a judgment signal back to the processor;
the specific analysis and judgment process of the probe self-checking module is as follows: acquiring a current signal on the second electrode 14 and an excitation signal loaded on the first electrode 13, analyzing and calculating through ohm's law, and calculating a resistance impedance value between the first electrode 13 and the second electrode 14; amplifying and filtering the calculated resistance impedance value, and comparing the processed resistance impedance value with a built-in 100Mohm precision resistance standard; if the resistance impedance value is smaller than the precision resistance reference value, the probe self-checking module outputs a probe damage signal to the processor, and if the resistance impedance value is larger than the precision resistance reference value, the probe self-checking module outputs a probe self-checking normal signal to the processor, and then the next glass lining damage analysis operation is carried out, so that the condition of the detection probe 1 can be automatically analyzed before the glass lining damage analysis, and the influence on the precision of the glass lining damage analysis result due to the damage of the detection probe 1 is avoided;
the specific judgment and analysis process of the glass lining breakage analysis module is as follows: acquiring an input signal of the second electrode 14 and an input signal of the third electrode 23, and respectively marking as Tp and Ts; based on the obtained glass lining breakage test data and according to an analysis formula
Analyzing, calculating to obtain damage analysis value PQR, and judging if PQR is larger than PQR2The method comprises the steps of determining that the enamel equipment 2 to be detected is not damaged, outputting an enamel normal signal to a processor, judging that the enamel equipment 2 to be detected is damaged if the PQR is less than the PQR1, outputting an enamel damage signal to the processor, judging that the enamel equipment 2 to be detected possibly has a micro crack or is about to reach a critical state of damage if the PQR is not less than the PQR1 and not more than the PQR2, and outputting an enamel pre-alarm signal to the processor (the PQR1 and the PQR2 are preset damage condition judgment thresholds, and the PQR1 is less than the PQR 2).
Example two:
as shown in fig. 5-7, the present embodiment is different from embodiment 1 in that a vertically arranged first electric telescopic rod 4 is installed at the top of a detection probe 1, one end of the first electric telescopic rod 4, which is far away from the detection probe 1, is connected to a fixed block 3, a horizontally arranged second electric telescopic rod 5 is installed on the side wall of the fixed block 3, and one end of the second electric telescopic rod 5, which is far away from the fixed block 3, is connected to a stable clamping assembly 6; before detection, the height of the detection probe 1 is adjusted through the first electric telescopic rod 4, the distance between the detection probe 1 and the inner wall of the enamel equipment 2 to be detected is adjusted through the second electric telescopic rod 5, and the use is facilitated, the stable clamping assembly 6 comprises a clamping box 61, a driving motor 69 is fixedly installed in the clamping box 61 through a motor base, a connecting shaft 62 is installed at the output end of the driving motor 69, the driving motor 69 is used for driving the connecting shaft 62, and a plurality of groups of gears 63 are arranged on the connecting shaft 62; the movable plates 64 comprise an upper group and a lower group, and the two groups of movable plates 64 are positioned at two sides of the interior of the clamping box 61;
a plurality of groups of horizontally arranged guide shafts 66 are fixedly mounted on the inner wall of the clamping box 61, a plurality of groups of guide grooves 642 are correspondingly formed in the movable plates 64, the guide shafts 66 are inserted into the corresponding guide grooves 642, a guide effect is realized by the arrangement of the guide grooves 642 and the guide shafts 66, and the stability of the movement process of the movable plates 64 is facilitated, a plurality of groups of horizontally arranged racks 641 are fixedly mounted on the two groups of movable plates 64 through bolts (the rack 641 is mounted at the bottom of the upper movable plate 64, and the rack 641 is mounted at the top of the lower movable plate 64), the gear 63 is meshed and connected with the two groups of movable plates 64 through the rack 641, connecting rods 67 are mounted at the bottoms of the two groups of movable plates 64, clamping blocks 68 are mounted at the bottom ends of the connecting rods 67, and limiting openings 65 for the connecting rods 67 to pass through are correspondingly formed at the bottoms of the clamping box 61; the anti-slip layers 681 are arranged on the opposite surfaces of the two groups of clamping blocks 68, and the anti-slip layers 681 can improve the friction coefficient of the surfaces of the clamping blocks 68, so that the fixing effect is improved;
before detection, the connecting shaft 62 is rotated through the driving motor 69, the connecting shaft 62 drives the gear 63 to rotate, and the rack 641 is meshed with the gear 63, so that the two groups of movable plates 64 move oppositely, the two groups of clamping blocks 68 are driven to move oppositely through the two groups of connecting rods 67, the distance between the two groups of clamping blocks 68 is continuously reduced until the two groups of clamping blocks 68 clamp the enamel equipment 2 to be detected, and the position of the detection probe 1 is fixed; when the detection probe 1 needs to be taken out, the connecting shaft 62 is reversely rotated by the driving motor 69, so that the two groups of clamping blocks 68 move back to back, and the distance between the two groups of clamping blocks 68 is continuously increased without clamping the enamel equipment 2 to be detected.
Example three:
as shown in fig. 8-9, the present embodiment is different from embodiments 1 and 2 in that the wireless control terminal 7 includes a terminal device 71, a display 72 and control keys 73 are installed on the front surface of the terminal device 71, the display 72 is used for displaying detection data and detection results, the control keys 73 are used for controlling detection, and a handheld component 74 is installed at the bottom of the terminal device 71; the handheld assembly 74 comprises a handheld handle 741, the handheld handle 741 is vertically arranged and fixed with the terminal device 71 through bolts, the connecting block 742 is fixedly mounted on the outer wall of the handheld handle 741 through bolts, four groups of through holes 743 for fingers to pass through are formed in the connecting block 742, a sponge sleeve 745 is mounted on the outer surface of the handheld handle 741, a sponge ring 744 is mounted in the through holes 743, and the sponge sleeve 745 and the sponge ring 744 play roles in absorbing sweat and improving friction coefficient and are beneficial to improving the gripping effect; an elastic rope 76 is arranged at the bottom of the handheld handle 741, an elastic anti-lost ring 75 is arranged at one end, away from the handheld handle 741, of the elastic rope 76, and the elastic anti-lost ring 75 is used for being sleeved on the wrist of an operator;
carry out the control of testing process and to the testing data through wireless control terminal 7, the testing result shows, in specific use, through holding handheld handle 741, and pass four fingers of left hand except thumb in through-hole 743, can prevent effectively that terminal equipment 71 from coming off from hand, play the anticreep effect, play the guard action to terminal equipment, and through preventing losing ring 75 cover on operating personnel's wrist with elasticity, further prevent that terminal equipment 71 from dropping subaerially, further improve barrier propterty, prevent effectively that terminal equipment from damaging because of falling to the ground.
The working principle of the invention is as follows: when the detection probe is used, the detection probe 1 is inserted into enamel equipment 2 to be detected, six groups of precise alternating current signals with different frequencies are generated by utilizing a built-in precise constant voltage source and are used as excitation signals, a built-in 100Mohm precise resistance reference is used as a feedback signal, the accuracy of the output excitation signals is ensured to be not lower than +/-1 ppm, the six groups of excitation signals are sequentially loaded on an electrode A, a current signal of an electrode B is collected, a probe self-detection module carries out analysis and calculation through ohm's law, and a resistance impedance value between a first electrode 13 and a second electrode 14 is calculated; amplifying and filtering the calculated resistance impedance value, and comparing the processed resistance impedance value with a built-in 100Mohm precision resistance standard; if the resistance impedance value is smaller than the precision resistance reference value, the probe self-checking module outputs a probe damage signal, and if the resistance impedance value is larger than the precision resistance reference value, the probe self-checking module outputs a probe self-checking normal signal, so that the condition of the detection probe 1 can be automatically analyzed before the damage analysis of the glass lining, and the influence on the precision of the glass lining damage analysis result due to the damage of the detection probe 1 is avoided;
when the detection probe 1 is in a normal state after detection, glass lining breakage analysis is carried out, firstly, the current signal of the second electrode 14 is input into a buffer, full-wave precision rectification and conversion are carried out on the signal, and then an I-V circuit is used for converting the current signal of the second electrode 14 into direct currentThe voltage signal is input into one input end of the comparator; collecting a current signal of the third electrode 23, performing integration, amplification and filtering on the current signal, converting a direct current component of the third electrode 23 into a direct current voltage signal by using an I-V circuit, and inputting the direct current voltage signal into the other input end of the comparator; the enamel glass breakage analysis module obtains the input signal of the second electrode 14 and the input signal of the third electrode 23, respectively marks the signals as Tp and Ts, compares the two input signals by using a comparator, and analyzes the signals according to an analysis formula
Analyzing and calculating to obtain a breakage analysis value PQR; if the PQR is larger than the PQR2, judging that the enamel equipment 2 to be detected is not damaged, and outputting an enamel normal signal to the processor, if the PQR is smaller than the PQR1, judging that the enamel equipment 2 to be detected is damaged, and outputting an enamel damage signal to the processor, if the PQR1 is smaller than or equal to the PQR2, judging that the enamel equipment 2 to be detected possibly has a micro crack or is about to reach a damaged critical state, and outputting an enamel pre-alarm signal to the processor; the processor sends the glass lining detection result to the wireless control terminal 7, the display screen 72 displays the glass lining detection result, the detection process is time-saving and labor-saving, the detection result is more accurate, the enamel equipment in the using process can be detected, and the use limit of the detection device is small;
by arranging the first electric telescopic rod 4, the second electric telescopic rod 5 and the stable clamping assembly 6, the position of the detection probe 1 can be adjusted and fixed before detection is carried out, the detection probe 1 does not need to be fixed manually during detection, the operation is simple, time and labor are saved, the stability of the detection process is facilitated, and the accuracy of the detection result is improved; the wireless control terminal 7 is arranged to control the detection process and display the detection data and the detection result, and the handheld assembly 74 and the elastic anti-lost ring 75 are arranged to further prevent the terminal equipment 71 from falling onto the ground, so that the terminal equipment is effectively prevented from being damaged due to falling to the ground, and the protection performance is better; according to the invention, an alternating current source is used for generating a 10-1 KHz alternating current signal, a frequency hopping technology is adopted, six frequency points are used for measurement, a low-voltage and high-precision voltage source of 8-10V is used as detection voltage, a high-precision resistance reference is arranged in the voltage source, the long-term stability is ensured, the alternating current signal and the direct current signal adopt independent channels, a differential signal is used for processing the signals, one electrode is used as a temperature probe, the temperature can be detected simultaneously, temperature compensation is carried out, and the use effect is obviously improved.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The on-line damage detection device for the enamel glass comprises a detection probe (1) and a wireless control terminal (7), wherein the detection probe (1) is in communication connection with the wireless control terminal (7) in a wireless transmission mode, the detection probe (1) is inserted into an enamel device (2) to be detected, the enamel device (2) to be detected comprises an inner layer and an outer layer, the inner layer is a second enamel layer (22), the outer layer is a second metal carrier layer (21), a third electrode (23) is installed on the outer wall of the second metal carrier layer (21), the on-line damage detection device is characterized in that the detection probe (1) comprises an inner layer and an outer layer, the inner layer is a first metal carrier layer (12), the outer layer is a first enamel layer (11), a first electrode (13) and a second electrode (14) are installed on the first enamel layer (11), and electrode leading-out wires (15) are installed on the first electrode (13) and the second electrode (14), the surface part of the first electrode (13) is exposed out of the first enamel layer (11), and the second electrode (14) is sealed in the first enamel layer (11);
the detection probe (1) is provided with a processor, the processor is in communication connection with a data acquisition module, a probe self-detection module and a glass lining damage analysis module, and the data acquisition module is used for acquiring self-detection data and glass lining damage test data of the detection probe (1) and sending the self-detection data and the glass lining damage test data to the processor; the processor sends the self-checking data to the probe self-checking module, and sends the glass lining damage test data to the glass lining damage analysis module, and the probe self-checking module is used for performing self-checking analysis based on the obtained self-checking data, judging whether the detection probe (1) is normal or not, and sending a judgment signal back to the processor; and the glass lining breakage analysis module is used for performing calculation analysis based on the obtained glass lining breakage test data, judging whether the enamel equipment (2) to be detected is broken or not, and sending a judgment signal back to the processor.
2. The on-line breakage detection device for glass lining according to claim 1, wherein the detection probe (1) is internally provided with a precise constant voltage source and a 100Mohm precise resistance standard, the first electrode (13) and the second electrode (14) are packaged by a sintering technology, the first electrode (13) is made of a platinum-rhodium alloy material, the second electrode (14) is made of a pure platinum metal material, the exposed area of the first electrode (13) is Qm, and 1.766mm is provided2＜Qm＜7.065mm2The vertical distance between the first electrode (13) and the second electrode (14) is h, and h is more than 5mm and less than 20 mm.
3. The on-line damage detection device for glass-lined according to claim 2, wherein the probe self-inspection module performs self-inspection analysis based on the obtained self-inspection data, determines whether the detection probe (1) is normal, and sends a determination signal back to the processor, and the specific analysis and determination process is as follows:
self-checking data acquired by a data acquisition module are acquired, the self-checking data comprise a current signal on the second electrode (14) and an excitation signal loaded on the first electrode (13), analysis and calculation are carried out through ohm's law, and a resistance impedance value between the first electrode (13) and the second electrode (14) is calculated; amplifying and filtering the calculated resistance impedance value, and comparing the processed resistance impedance value with a built-in 100Mohm precision resistance standard;
if the resistance value is smaller than the precision resistance reference value, the probe self-checking module outputs a probe damage signal to the processor, and if the resistance value is larger than the precision resistance reference value, the probe self-checking module outputs a probe self-checking normal signal to the processor, and then the next glass lining damage analysis operation is carried out.
4. The on-line damage detection device for glass-lined equipment as claimed in claim 3, wherein the glass-lined damage analysis module performs calculation analysis based on the obtained glass-lined damage test data, determines whether damage exists in the enamel equipment (2) to be detected, and sends a determination signal back to the processor, and the specific determination analysis process is as follows:
glass lining breakage test data acquired by a data acquisition module are acquired, wherein the glass lining breakage test data comprise input signals of a second electrode (14) and input signals of a third electrode (23), and are respectively marked as Tp and Ts;
based on the obtained glass lining breakage test data and according to an analysis formula
Analyzing, calculating damage analysis value PQR, and judging if PQR > PQR2The method comprises the steps that the enamel equipment (2) to be detected is not damaged, an enamel normal signal is output to a processor, if the PQR is less than the PQR1, the enamel equipment (2) to be detected is judged to be damaged, an enamel damage signal is output to the processor, if the PQR is not less than 1 and not more than the PQR is not more than 2, the enamel equipment (2) to be detected is judged to possibly have a micro crack or be in a critical state of being damaged, and an enamel pre-alarm signal is output to the processor;
here, PQR1 and PQR2 are preset damage condition determination thresholds, and PQR1 < PQR 2.
5. An on-line damage detection device for enamel glass according to claim 4, characterized in that the top of the detection probe (1) is provided with a vertically arranged first electric telescopic rod (4), one end of the first electric telescopic rod (4) far away from the detection probe (1) is connected with the fixed block (3), the side wall of the fixed block (3) is provided with a horizontally arranged second electric telescopic rod (5), and one end of the second electric telescopic rod (5) far away from the fixed block (3) is connected with the stable clamping component (6).
6. The on-line damage detection device for glass lining according to claim 5, wherein the stable clamping assembly (6) comprises a clamping box (61), a connecting shaft (62), a gear (63), a movable plate (64), a limiting opening (65), a guide shaft (66), a connecting rod (67), a clamping block (68) and a driving motor (69), the driving motor (69) is fixedly installed in the clamping box (61) through a motor base, the output end of the driving motor (69) is provided with the connecting shaft (62), and the gear (63) is arranged on the connecting shaft (62); the movable plates (64) comprise an upper group and a lower group, and the two groups of movable plates (64) are positioned on two sides of the interior of the clamping box (61);
the inner wall fixed mounting of centre gripping box (61) has guiding axle (66) that the level set up, guide way (642) have been seted up to correspondence on fly leaf (64), and guiding axle (66) insert in corresponding guide way (642), and are two sets of all through rack (641) that bolt fixed mounting has the level to set up on fly leaf (64), and gear (63) are connected through rack (641) and two sets of fly leaf (64) meshing, and are two sets of connecting rod (67) are all installed to the bottom of fly leaf (64), grip block (68) are installed to the bottom of connecting rod (67), and the bottom correspondence of centre gripping box (61) sets up spacing opening (65) that supply connecting rod (67) to pass.
7. An on-line damage detection device for enamel glass according to claim 6, characterized in that two sets of said clamping blocks (68) are provided with anti-slip layers (681) on their opposite sides, said gear (63) is provided with multiple sets on the connecting shaft (62), and the movable plate (64) is correspondingly provided with multiple sets of racks (641), said movable plate (64) is provided with multiple sets of guide grooves (642), and the inner walls of both sides of the clamping box (61) are correspondingly provided with multiple sets of guide shafts (66).
8. The on-line glass-lined breakage detection device of claim 7, wherein the wireless control terminal (7) comprises a terminal device (71), a display screen (72), a control key (73) and a handheld component (74), the display screen (72) and the control key (73) are installed on the front surface of the terminal device (71), and the handheld component (74) is installed on the bottom of the terminal device (71); the handheld assembly (74) comprises a handheld handle (741), a connecting block (742), through holes (743), a sponge ring (744) and a sponge sleeve (745), the handheld handle (741) is vertically arranged and fixed with a terminal device (71) through bolts, the sponge sleeve (745) is installed on the outer surface of the handheld handle (741), the connecting block (742) is fixedly installed on the outer wall of the handheld handle (741) through the bolts, four sets of through holes (743) for fingers to pass through are formed in the connecting block (742), and the sponge ring (744) is installed in the through holes (743).
9. An on-line damage detection device for glass-lined according to claim 8, wherein the bottom of the hand-held handle (741) is provided with an elastic rope (76), one end of the elastic rope (76) far away from the hand-held handle (741) is provided with an elastic anti-lost ring (75), and the elastic anti-lost ring (75) is used for being sleeved on the wrist of the operator.
10. The online breakage detection method for glass lining is characterized by comprising the following steps:
inserting a detection probe (1) into an enamel device (2) to be detected, inserting a first electrode (13) into the enamel device (2) to be detected along with the detection probe (1) and exposing the detection probe inside the enamel device (2), sealing a second electrode (14) in a first enamel layer (11) without contacting the enamel device (2) to be detected, connecting a third electrode (23) to the outer side of the enamel device (2) to be detected, and enabling the third electrode (23) and the first electrode (13) not to be directly conducted due to existence of a second enamel layer (22);
step two, adjusting and fixing the position of the detection probe (1), and generating six groups of precise alternating current signals with different frequencies as excitation signals by using a built-in precise constant voltage source after the preparation operation is finished; and the built-in 100Mohm precision resistance reference is used as a feedback signal to ensure that the precision of the output excitation signal is not less than +/-1 ppm;
loading six groups of excitation signals on the electrode A in sequence, collecting a current signal of the electrode B, analyzing and calculating by a probe self-checking module through ohm's law, and calculating a resistance impedance value between the first electrode (13) and the second electrode (14); amplifying and filtering the calculated resistance impedance value, and comparing the processed resistance impedance value with a built-in 100Mohm precision resistance standard;
if the resistance value is smaller than the precision resistance reference value, the probe self-checking module outputs a probe damage signal to the processor and stops performing the next operation, and if the resistance value is larger than the precision resistance reference value, the probe self-checking module outputs a probe self-checking normal signal to the processor and performs the next step;
step four, inputting the current signal of the second electrode (14) into a buffer, performing full-wave precise rectification and conversion on the signal, converting the current signal of the second electrode (14) into a direct-current voltage signal by using an I-V circuit, and inputting the direct-current voltage signal into one input end of a comparator;
collecting a current signal of the third electrode (23), integrating, amplifying and filtering the current signal, converting a direct current component of the third electrode (23) into a direct current voltage signal by using an I-V circuit, and inputting the direct current voltage signal into the other input end of the comparator;
step five, glass lining breakingThe loss analysis module acquires an input signal of the second electrode (14) and an input signal of the third electrode (23), respectively marks the input signals as Tp and Ts, compares the two input signals by using a comparator, and analyzes the two input signals according to an analysis formula
Analyzing and calculating to obtain a breakage analysis value PQR; and obtaining preset breakage condition judgment thresholds PQR1 and PQR2, PQR1 < PQR 2;
if the PQR is larger than the PQR2, judging that the enamel equipment (2) to be detected is not damaged, and outputting an enamel normal signal to the processor, if the PQR is smaller than the PQR1, judging that the enamel equipment (2) to be detected is damaged, and outputting an enamel damage signal to the processor, if the PQR1 is smaller than or equal to the PQR2, judging that the enamel equipment (2) to be detected possibly has a micro crack or is about to reach a damaged critical state, and outputting an enamel pre-alarm signal to the processor;
and step six, the processor sends the glass lining damage detection result to the wireless control terminal (7), and the display screen (72) displays the glass lining detection result.
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| CN116223569A (en) * | 2023-05-09 | 2023-06-06 | 江苏扬阳化工设备制造有限公司 | Glass lining detection equipment |
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