CN211014021U

CN211014021U - Tester for measuring content of insoluble substances in water based on laser

Info

Publication number: CN211014021U
Application number: CN201921814926.9U
Authority: CN
Inventors: 车传强; 燕宝峰; 卢燕龙; 赵建利; 赵建坤; 白全新; 周敏杰; 陈波; 赵雷
Original assignee: Wuhan Yaoneng Technology Co ltd; Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Current assignee: Wuhan Yaoneng Technology Co ltd; Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-14
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a tester for measuring the content of insoluble substances in water based on laser, which comprises a mainframe box, a photoelectric sensor and a laser generator; the mainframe box is divided into an upper cover and a lower box body; the upper cover is movably connected with the lower box body; the surface of the lower box body is provided with a control panel; a touch screen is arranged on the control panel; a round hole is formed in the control panel and communicated with the cylindrical cavity below the round hole; a transparent glass container is arranged in the round hole in a matching way; the bottom of the transparent glass container is provided with a sensor mounting seat; a laser generator and a photoelectric sensor are distributed on the outer circumference of the sensor mounting seat; a stirrer is arranged at the bottom of the sensor mounting seat; a control box and a battery are arranged in the lower box body; the control box is respectively connected with the printer, the photoelectric sensor, the stirrer, the touch screen and the laser generator. The utility model discloses not only operation process is simple, has avoided introducing human error, can accurately reflect on-the-spot filthy degree, has improved measurement accuracy, has extensive suitability.

Description

Tester for measuring content of insoluble substances in water based on laser

Technical Field

The utility model relates to a tester especially relates to a based on laser measurement insoluble content tester in water.

Background

The electric power system is an important support for national economy and is also the most complex artificial network in the world. Maintaining the stability of the power grid is an important task for developing the civil and economic aspects and is also limited by a plurality of factors. The insulator is used as a main carrier of a connecting circuit in a power grid, is an important supporting point for supporting the power grid, and has self-evident importance. Experience at home and abroad shows that a lot of line accidents are the root cause of line flashover caused by the problems of insulation quality and operation age, and the pollution degree of the insulator is increased along with the lapse of operation time, so that the electrical performance of the outer insulation of the insulator is poor, and the pollution degree of the composite insulator must be strictly detected in order to effectively control the normal work of the insulator on a line and maintain the stable operation of a power grid. Years of operating experience show that: although China insists on the anti-pollution flashover measure of cleaning the insulators for the power transmission and transformation equipment once a year for a long time, and uses a large number of measures for strengthening the anti-pollution flashover, such as large-climbing insulators, insulators and composite insulators with excellent self-cleaning performance, RTV anti-pollution flashover coating and the like, large-area pollution flashover accidents are still rare. These facts fully indicate that the pollution class determined by the data based on the maximum salt density of one year and the external insulation configured by the creepage specific distance method can not completely prevent the occurrence of large-area pollution flashover accidents. Although a great deal of research work is carried out in the field at home and abroad, particularly, drawing work of electric power system pollution area distribution patterns is carried out comprehensively in China, a series of electric power industry standards related to pollution flashover prevention technology are formulated, and the drawing work is well implemented, but since the reform is open, the economic development of China is rapid, the industrial and agricultural pollution is serious, the environment is rapidly worsened, the large-area pollution flashover accidents are not completely eradicated, and the large-scale regional pollution flashover accidents still frequently occur. The pollution flashover accident caused by regional pollution or place pollution is low in reclosing rate and high in tripping rate, and a large-area and long-time malignant power failure accident is easily caused. Meanwhile, the frequent occurrence of the large-scale pollution flashover phenomenon also indicates that the external insulation level of the power transmission and transformation equipment established on the basis of once-a-year cleaning cannot meet the requirements of safe and reliable operation of a modern large power grid, and the occurrence of large-area pollution flashover accidents cannot be avoided.

However, the existing pollution test means is single, the operation process is too complex, particularly, the filtration, drying and weighing links in the ash density test are too complicated, human errors are very easy to introduce, and the on-site pollution degree cannot be accurately reflected, so that a set of equipment which is suitable for a first-line tester and is simple to use and operate and high in test precision needs to be researched.

In the last two decades, laser detection technology has been developed rapidly, laser itself has high brightness, high directivity, high monochromaticity and high coherence, and laser sensors have high measurement speed, high precision and strong anti-interference capability, and have been widely applied to image sensing, signal processing, product detection and product quality evaluation. The laser detection technology is applied to the measurement of the pollution degree of the insulator, and the bottleneck problem of the pollution degree measurement for a long time is hopeful to be solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a tester for measuring the content of insoluble substances in water based on laser.

In order to solve the technical problem, the utility model discloses a technical scheme is: a tester for measuring the content of insoluble substances in water based on laser comprises a mainframe box, a photoelectric sensor and a laser generator; the mainframe box is divided into an upper cover and a lower box body; the upper cover is movably connected with the lower box body;

the surface of the lower box body is provided with a control panel; a touch screen is arranged on the control panel; a round hole is formed in the control panel and communicated with the cylindrical cavity below the round hole; a transparent glass container is arranged in the round hole in a matching way; the bottom of the transparent glass container is provided with a sensor mounting seat; a laser generator and a photoelectric sensor are distributed on the outer circumference of the sensor mounting seat; a stirrer is arranged at the bottom of the sensor mounting seat; the stirrer is contacted and connected with the bottom of the transparent glass container;

the number of the laser generators is two, the number of the photoelectric sensors is three, the two laser generators are respectively arranged opposite to the two photoelectric sensors, and an included angle of 35-55 degrees is formed between the third photoelectric sensor and the laser generators;

a control box and a battery are arranged in the lower box body; the battery is connected with the control box through a power switch; the control box is respectively connected with the printer, the photoelectric sensor, the stirrer, the touch screen and the laser generator.

The transparent glass container is divided into an upper part and a lower part, wherein the upper part and the lower part are both cylinders, and the diameter of the upper part is larger than that of the lower part.

The sensor mounting seat is a cylinder with a hollow middle part; the lower part of the transparent glass container is inserted into the middle cavity of the sensor mounting seat.

The control panel is provided with a power switch, a USB socket and a printer; the control panel is fixedly connected with the lower box body through a fixing screw.

The right side surface of the lower box body is provided with an electrode socket, and the left side surface of the lower box body is provided with a power socket; the power socket is connected with the battery.

The touch screen is a seven-inch touch screen.

A main control board is arranged in the control box; the model of the main control board is C8051F 021.

The utility model discloses not only operation process is simple, has avoided introducing human error, can accurately reflect on-the-spot filthy degree, has realized the full automatic measure of insulator filthy degree moreover, has improved measurement accuracy, provides accurate data support for transmission line antifouling sudden strain of a muscle work, has extensive suitability.

Drawings

Fig. 1 is a schematic view of the main viewing surface structure of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

Fig. 3 is a schematic perspective view of fig. 1.

Fig. 4 is a perspective structural diagram of the lower case.

Fig. 5 is a schematic circuit diagram of the main control board.

Fig. 6 is a circuit schematic of a backup salt deposit switch.

Fig. 7 is a schematic diagram of a drive circuit of the agitator.

Fig. 8 is a schematic diagram of the power driving circuit of the control box.

Fig. 9 is a schematic diagram I of a sampling circuit of the photosensor.

Fig. 10 is a schematic diagram II of a sampling circuit of the photosensor.

FIG. 11 is a schematic diagram of a control circuit of the laser generator.

Fig. 12 is a schematic circuit diagram of the power switch.

Fig. 13 is a schematic diagram of a communication circuit of the control box.

Fig. 14 is a schematic diagram of a communication interface of the communication circuit.

Fig. 15 is a schematic diagram of a graphical interface of a touch screen.

In the figure: 1. a control box; 2. a power socket; 3. a power switch; 4. a printer; 5. a transparent glass container; 6. an electrode receptacle; 7. a photosensor; 8. a stirrer; 9. an upper cover; 10. a lower box body; 11. a touch screen; 12. a laser generator; 13. a control panel; 14. a sensor mount; 15. a USB socket; 16. a battery.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The tester for measuring the content of insoluble substances in water based on laser as shown in FIGS. 1-4 comprises a main case, a photoelectric sensor 7 and a laser generator 12; the mainframe box is divided into an upper cover 9 and a lower box body 10; the upper cover 9 is movably connected with the lower box body 10; when in use, the upper cover 9 is opened; when not in use, the upper cover 9 is covered above the lower box body 10.

The surface of the lower box body 10 is provided with a control panel 13; the control panel 13 is provided with a power switch 3, a USB socket 15 and a printer 4; the measured data can be imported into the USB-disk through the USB-socket 15. The printer 4 is used to print data. The control panel 13 is fixedly connected with the lower box body 10 through a fixing screw. The right side surface of the lower box body 10 is provided with an electrode socket 6, and the left side surface is provided with a power socket 2; the power socket 2 is connected to a battery 16. The electrode socket 6 is connected with a salt density electrode for measuring salt density, a temperature sensor is arranged on the salt density electrode, and the electrode socket 6 is used for measuring the salt density.

The salt density testing principle of the salt density electrode is that a volt-ampere characteristic curve of the suspension is measured by applying voltage and current between two electrodes, the equivalent conductivity of the suspension is converted, and meanwhile, the real-time temperature of the suspension is obtained by a temperature sensor. And further carrying out inversion according to a salt density-conductivity mathematical model to obtain the actual salt content, and converting according to the area of the insulator to obtain a salt density value.

The control panel 13 is provided with a touch screen 11; the touch screen 11 is a seven-inch touch screen. As shown in fig. 15. The touch screen 11 is provided with a plurality of parameter displays and a plurality of function keys, and corresponding tests are performed through the function keys. A round hole is formed in the control panel 13 and communicated with a cylindrical cavity below the round hole; a transparent glass container 5 is arranged in the round hole in a matching way; the bottom of the transparent glass container 5 is provided with a sensor mounting seat 14; the transparent glass container 5 is divided into an upper part and a lower part, wherein the upper part and the lower part are both cylinders, and the diameter of the upper part is larger than that of the lower part. The sensor mounting base 14 is a cylinder with a hollow middle part; the lower part of the transparent glass container 5 is inserted into the middle cavity of the sensor mounting seat 14. A transparent glass container 5 is used as a suspension testing container, and the transparent glass container 5 is placed on the sensor mounting seat 14 and can be taken out for cleaning. And (3) synchronously and directly reading the salt density and the ash density in the suspension, wherein the salt density is measured by adopting a built-in salt density electrode, and the ash density is measured by adopting a laser transmission method. The whole process of preparing the suspension, stirring, measuring and outputting data is automatically completed by the main control board.

The outer circumference of the sensor mounting seat 14 is distributed with a laser generator 12 and a photoelectric sensor 7; the bottom of the sensor mounting seat 14 is provided with a stirrer 8; a stirrer 8 fixing seat is arranged outside the stirrer 8. The stirrer 8 is contacted and connected with the bottom of the transparent glass container 5; a stirrer is arranged in the transparent glass container 5, and the stirrer 8 is a magnetic stirrer.

The number of the laser generators 12 is two, the number of the photoelectric sensors 7 is three, the two laser generators are respectively arranged opposite to the two photoelectric sensors, and an included angle of 35-55 degrees is formed between the third photoelectric sensor and the laser generator; the sensors are uniformly arranged around the sensor mounting seat 14, and two groups of laser generators and three groups of photoelectric sensors are arranged, wherein the two groups of laser generators correspond to the two groups of photoelectric sensors to receive transmitted light intensity, and the other group of photoelectric sensors and the laser generators form an included angle to receive scattered light intensity.

The lower box body 10 is internally provided with a control box 1 and a battery 16; a main control board is arranged in the control box 1; the main control board is C8051F021, as shown in FIG. 5. The battery 16 is a rechargeable battery, and has one end connected to the power socket 2 and the other end connected to the power switch 3. The battery 16 is connected with the control box 1 through the power switch 3; the control box 1 is respectively connected with the printer 4, the photoelectric sensor 7, the stirrer 8, the touch screen 11 and the laser generator 12.

The main control panel in the control box 1 is connected with the touch screen 11, after the power switch 3 is started, the battery 16 supplies power to the main control panel in the control box 1, the main control panel is arranged on the touch screen 11, and according to the key operation on the touch screen 11, the main control panel in the control box 1 sends commands to the printer 4 or the photoelectric sensor 7 or the stirrer 8 or the laser generator 12 respectively according to the received corresponding commands, so that full-automatic measurement is realized. Specific circuit schematics are seen in fig. 6-14. Compared with the prior art, the test area and the stirring area are separated, the laser transmission scattering test is more accurate, and the routine test range of the ash density test can be met.

The ash density measurement method adopts a laser transmission method and a scattering method ash density measurement method, and the specific working principle is that firstly, a laser attenuation characteristic test is carried out aiming at standard dirty substances, the relation between the laser transmission light intensity and the ash content is obtained, a corresponding mathematical model is established, and the mathematical model is programmed and written into a main control board CPU. And deducing a mathematical model of the actual mixed pollution according to the mathematical model of the transmitted light intensity-ash content of the standard substance. The transmission light intensity of the actual filth turbid liquid is measured by the laser generating assembly and the transmission laser receiving module, the actual salt content and the ash content are obtained by the CPU through inversion according to the obtained laser transmission light intensity and the obtained scattering light intensity and the salt density-conductivity mathematical model and the laser attenuation characteristic mathematical model, and the salt density and ash density measured value is calculated according to the surface area of the insulator.

The utility model discloses an operation process does:

1. pretreatment: washing the insulator with known surface area with 300ml of water, pouring the washing water into a transparent glass container 5; alternatively, the surface of the insulator having a known surface area is wiped with a nonwoven fabric, the nonwoven fabric is washed in a beaker, and the resulting deposition water is poured into a transparent glass container 5.

2. And (3) measuring the salt density: connecting the electrode socket 6 with the salt density electrode, placing the salt density electrode into the transparent glass container 5, measuring the volt-ampere characteristic curve of the suspension by the salt density electrode, obtaining the temperature of the suspension by the temperature sensor, and calculating the salt density measured value according to the surface area of the insulator.

3. Ash density measurement: adding water to 600ml in the transparent glass container 5, clicking a grey density measurement button on the touch screen 11, starting the stirrer 8, starting stirring by using a stirrer, and stirring by using the stirrer 8 according to the preset water quantity and content quality to form stable and uniform suspension to be detected; starting laser measurement of ash density after stirring is stopped: measuring the ash density by adopting a laser transmission method and scattering, and acquiring a transmission light intensity signal by using a built-in laser transmission device, a laser receiving device, namely a laser generator 12 and a photoelectric sensor 7; and obtaining the ash content according to the obtained laser transmission light intensity and the scattering light intensity, and calculating an ash density measured value according to the surface area of the insulator.

4. Data sorting and outputting: finishing data sorting and outputting through the

steps

2 and 3, displaying the data in the touch screen 11, and finishing direct-reading synchronous measurement of salt density and ash density.

The design adopts direct-reading measurement and synchronous measurement of salt density and ash density, namely the measurement of the salt density and the ash density is completed in suspension at one time without filtration and drying, and the main control board performs data display and report output to complete data direct reading.

The utility model discloses can realize the full-automatic measurement of filthy degree test volume, improve measurement of efficiency, reduce laboratory area, improve the measuring accuracy, reduce human error, the on-the-spot filthy degree of reflection transmission line that can be timely accurate after popularizing provides accurate data support for dirty partition layout and antifouling sudden strain of a muscle instrument, improves electric wire netting operational reliability, reduces the filthy sudden strain of a muscle occurence of failure, reduces the loss of operation, is worth popularizing and applying.

The application relates to a device for measuring content of insoluble substances in water based on laser transmission, scattering and refraction principles, which can meet the requirements of classification of electric network pollution levels and measurement of content quality, solves the problems of low measurement precision and complex steps in detection of pollution degree of a power transmission line, and provides a basis for timely checking the configuration level of the existing external insulation and operation and maintenance of power transmission and transformation equipment.

The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.

Claims

1. The utility model provides a based on laser measurement insoluble content tester in water which characterized in that: comprises a main case, a photoelectric sensor (7) and a laser generator (12); the mainframe box is divided into an upper cover (9) and a lower box body (10); the upper cover (9) is movably connected with the lower box body (10);

a control panel (13) is arranged on the surface of the lower box body (10); a touch screen (11) is arranged on the control panel (13); a round hole is formed in the control panel (13), and the round hole is communicated with a cylindrical cavity below the round hole; a transparent glass container (5) is arranged in the round hole in a matching way; a sensor mounting seat (14) is arranged at the bottom of the transparent glass container (5); the outer circumference of the sensor mounting seat (14) is distributed with a laser generator (12) and a photoelectric sensor (7); the bottom of the sensor mounting seat (14) is provided with a stirrer (8); the stirrer (8) is contacted and connected with the bottom of the transparent glass container (5);

the number of the laser generators (12) is two, the number of the photoelectric sensors (7) is three, the two laser generators are respectively arranged opposite to the two photoelectric sensors, and an included angle of 35-55 degrees is formed between the third photoelectric sensor and the laser generator;

a control box (1) and a battery (16) are arranged in the lower box body (10); the battery (16) is connected with the control box (1) through a power switch (3); the control box (1) is respectively connected with the printer (4), the photoelectric sensor (7), the stirrer (8), the touch screen (11) and the laser generator (12).

2. The instrument for measuring the content of insoluble substances in water based on laser as claimed in claim 1, wherein: the transparent glass container (5) is divided into an upper part and a lower part, wherein the upper part and the lower part are both cylinders, and the diameter of the upper part is larger than that of the lower part.

3. The instrument for measuring the content of insoluble substances in water based on laser as claimed in claim 2, wherein: the sensor mounting seat (14) is a cylinder with a hollow middle part; the lower part of the transparent glass container (5) is inserted into a cavity in the middle of the sensor mounting seat (14).

4. The instrument for measuring the content of insoluble materials in water based on laser beam as claimed in claim 3, wherein: the control panel (13) is provided with a power switch (3), a USB socket (15) and a printer (4); the control panel (13) is fixedly connected with the lower box body (10) through a fixing screw.

5. The instrument for measuring the content of insoluble substances in water based on laser as claimed in claim 4, wherein: an electrode socket (6) is arranged on the right side surface of the lower box body (10), and a power socket (2) is arranged on the left side surface; the power socket (2) is connected with a battery (16).

6. The instrument for measuring the content of insoluble materials in water based on laser as claimed in claim 5, wherein: the touch screen (11) is a seven-inch touch screen.

7. The apparatus for measuring the content of insoluble materials in water based on laser according to any one of claims 1 to 6, wherein: a main control board is arranged in the control box (1); the model of the main control board is C8051F 021.