Corrosion-resistant metal closed ring main switchgear based on holographic perception technology

Abstract

The application discloses a kind of corrosion-resistant metal closed ring network cabinet based on holographic perception technology, it is related to metal closed ring network cabinet technical field, including base, cabinet and holographic perception module, the base outer wall top is fixedly installed with cabinet, the cabinet inner wall bottom is fixedly installed with holographic perception module;The holographic perception module is composed of laser source, beam splitter, holographic grating array, photoelectric detector and signal processing unit.It is realized to the small corrosion of ring network cabinet metal inner wall surface quantitative monitoring function by being installed with holographic perception module, the problem that traditional metal closed ring network cabinet internal corrosion condition cannot be monitored and quantized is solved, data support is improved for subsequent corrosion repair and anticorrosion treatment, improve protection precision, prolong the service life of equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of metal closed ring main unit (RMU), and in particular to a corrosion-resistant metal closed ring main unit (RMU) based on holographic sensing technology. Background Art

[0002] Existing ring main units generally use metal boxes and conventional sensors for monitoring, which makes it difficult to perceive the internal corrosion process early and comprehensively. In addition, the cabinet is prone to local corrosion in highly corrosive environments such as coastal areas and chemical industries, which affects the insulation and mechanical properties, reducing operational safety and service life.

[0003] Patent CN119231359B discloses an environmentally friendly gas-insulated ring main unit. The above patent achieves a closed pressure relief effect when the air pressure in the primary circuit insulation chamber is increased to the range of cabinet deformation pressure and bursting pressure.

[0004] The above patent combines multiple cabinets to form a ring main unit group. When the temperature of one of the ring main units rises abnormally, the corresponding No. 1 solenoid valve opens, and the sliding plate moves under the action of the air pressure in the corresponding primary circuit insulation chamber to form a gas storage cavity, thereby preventing the loss of insulating gas and cooling the chamber while relieving pressure. However, it is impossible to monitor and quantify the corrosion situation inside the cabinet in real time.

[0005] To this end, this application proposes a corrosion-resistant metal closed ring network cabinet based on holographic sensing technology for real-time monitoring and quantification of corrosion conditions. Summary of the Invention

[0006] The purpose of the present invention is to provide a corrosion-resistant metal closed ring main unit based on holographic sensing technology to solve the technical problem of being unable to monitor and quantify the corrosion situation in real time raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a corrosion-resistant metal closed ring main unit based on holographic sensing technology, comprising a base, a cabinet body, and a holographic sensing module, wherein the cabinet body is fixedly mounted on the top of the outer wall of the base, and the holographic sensing module is fixedly mounted on the bottom of the inner wall of the cabinet;

[0008] The holographic sensing module is composed of a laser source, a beam splitter, a holographic grating array, a photodetector and a signal processing unit;

[0009] The laser source emits laser light coupled to a beam splitter via a micro-optical fiber, and the incident light is introduced into a reference arm and a measuring arm respectively. A holographic grating array is provided at the end of the measuring arm. A photodetector is arranged at the overlapping position of the light beams of the measuring arm and the reference arm to capture real-time interference fringes. The photodetector is connected to a signal processing unit via a data line. The signal processing unit performs phase demodulation in real time: based on multi-wavelength phase-shifting interference and Fourier transform phase-shifting algorithms, the phase difference of the interference fringes is analyzed. After phase demodulation, the signal processing unit generates a local three-dimensional height map, extracts corrosion product parameters through time series comparison, and determines the corrosion type.

[0010] Preferably, a drive module is fixedly installed on the side and back of the inner wall of the cabinet, and the drive module includes: a first motor, a ball screw and a clamping block;

[0011] Sliding grooves are provided on the side and back of the inner wall of the cabinet, and a first motor is fixedly installed on the bottom of the inner wall of the sliding groove. The first motor is connected to the signal processing unit through a data signal line. A first rotating shaft is fixedly installed on the top of the outer wall of the first motor, and a ball screw is fixedly installed on the top of the outer wall of the first rotating shaft. A card block is mounted on the outer wall of the ball screw, and the card block is clamped in the sliding groove to slide up and down.

[0012] Preferably, the driving module is fixedly mounted with a coating module via a connecting rod, and the coating module is used to perform surface protective coating on the inner wall of the cabinet according to the corrosion condition;

[0013] The coating module includes: a connecting rod, a fixing block and a coating roller;

[0014] A connecting rod is fixedly installed on the front of the outer wall of the clamping block, a fixing block is fixedly installed on the front of the outer wall of the connecting rod, a sleeve rod is fixedly installed on the side of the outer wall of the fixing block, and a coating roller is movably sleeved on the outer wall of the sleeve rod.

[0015] Preferably, a pumping module is fixedly installed on the top of the outer wall of the cabinet, and the pumping module includes: a paint tank, a transfer box and an electronic control pump;

[0016] A protective shell is fixedly installed on the top of the outer wall of the cabinet, a paint tank is fixedly installed on the top of the outer wall of the protective shell, a transfer box is fixedly installed on the bottom of the inner wall of the protective shell, an electronic control pump is fixedly installed on the bottom of the inner wall of the transfer box, and the electronic control pump is connected to the signal processing unit through a data signal line; a connecting pipe is fixedly installed on the top of the outer wall of the electronic control pump, and the connecting pipe is connected to the bottom interface of the paint tank.

[0017] Preferably, a spray module is fixedly installed on the top of the inner wall of the cabinet, and the spray module includes: a second motor, a connection box and a spray head;

[0018] A second motor is fixedly installed on the top of the inner wall of the cabinet, and the second motor is connected to the signal processing unit through a data signal line. A second rotating shaft is fixedly installed on the bottom of the outer wall of the second motor, and a connecting box is fixedly installed on the bottom of the outer wall of the second rotating shaft. A booster pump is fixedly installed on the bottom of the inner wall of the connecting box. The booster pump is connected to the electronic control pump through a rotating hose. The booster pump is connected to the signal processing unit through a data signal line. A diverter pipe is fixedly installed on the side of the outer wall of the connecting box, and the diverter pipe is connected to the booster pump. A spray head is fixedly installed on the side of the outer wall of the connecting box.

[0019] Preferably, an environment detection module is fixedly installed on the top of the inner wall of the cabinet, and the environment detection module includes: a first processor, a second processor, a temperature and humidity sensor, and a gas concentration sensor;

[0020] A temperature and humidity sensor is fixedly installed on the top of the inner wall of the cabinet, a second processor is fixedly installed on the top of the outer wall of the cabinet, and the temperature and humidity sensor is connected to the second processor through a data cable. A gas concentration sensor is fixedly installed on the top of the inner wall of the cabinet, a first processor is fixedly installed on the top of the outer wall of the cabinet, and the gas concentration sensor is connected to the first processor through a data cable.

[0021] Preferably, a drying and ventilation module is fixedly installed on the side of the outer wall of the cabinet, and the drying and ventilation module includes: a ventilation window, a third motor and a sealing leaf;

[0022] A ventilation window is fixedly installed on the side of the outer wall of the cabinet, a ventilation leaf groove is opened on the side of the outer wall of the ventilation window, a third motor is fixedly installed on the side of the inner wall of the ventilation window, the third motor is connected to the second processor through a data signal line, a third rotating shaft is fixedly installed on the side of the outer wall of the third motor, a sealing leaf is fixedly installed on the side of the outer wall of the third rotating shaft, and the sealing leaf has the same size and shape as the ventilation leaf groove.

[0023] Preferably, a redox module is fixedly installed on the bottom of the inner wall of the base, and the redox module includes: a power box, a cathode needle and an anode needle;

[0024] A power box is fixedly installed at the bottom of the inner wall of the base, and the power box is connected to the signal processing unit through a data signal line. Electric support arms are fixedly installed on both sides of the outer wall of the power box. A cathode needle is fixedly installed on the side of the outer wall of one electric support arm, and an anode needle is fixedly installed on the side of the outer wall of the other electric support arm, and the cathode needle and the anode needle are close to the inner wall of the cabinet.

[0025] Preferably, a gas exchange column is fixedly installed at the bottom of the inner wall of the cabinet, and a gas expansion electronic valve is fixedly installed at the top of the inner wall of the base. The gas expansion electronic valve is connected to the first processor through a data signal line, and the gas expansion electronic valve is connected to the gas exchange column through an air pipe. An expandable air bag is fixedly installed in the gas expansion electronic valve for storing gas.

[0026] Preferably, a cabinet door is installed on the front of the outer wall of the cabinet body via a detachable hinge, and a handle is fixedly installed on the front of the outer wall of the cabinet door.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. This invention, by installing a holographic sensing module, realizes the quantitative monitoring function of the micro-corrosion on the metal inner wall surface of the ring main unit, solving the problem that the corrosion situation in the traditional metal closed ring main unit cannot be monitored and quantified. It provides data support for subsequent corrosion repair and anti-corrosion treatment, improves protection accuracy, and extends the service life of the equipment.

[0029] 2. The present invention is equipped with a spray module, a drive module and a coating module to achieve the function of uniformly coating the inner wall of the cabinet with anti-corrosion paint, thereby providing a dense anti-corrosion protective layer inside the metal closed ring network cabinet and improving the corrosion resistance;

[0030] 3. The present invention realizes the real-time monitoring and adjustment of the environmental parameters inside the cabinet by installing an environmental detection module and a drying and ventilation module, solving the problem of accelerated corrosion caused by the hot and humid environment inside the cabinet, slowing down the corrosion rate and improving the corrosion resistance of the equipment.

[0031] 4. The present invention realizes the redox function of the corrosion area by installing a redox module, solves the problem of inconvenience in manually removing corrosion products, and also increases the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view structural schematic diagram of the present invention;

[0033] Figure 2 It is a front structural schematic diagram of the present invention;

[0034] Figure 3 This is a schematic structural diagram of the driving module and coating module of the present invention;

[0035] Figure 4 This is a schematic diagram of the protective shell and paint tank structure of the present invention;

[0036] Figure 5 This is a schematic structural diagram of the spray module of the present invention;

[0037] Figure 6 This is a structural diagram of the drying and ventilation module of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the environment detection module of the present invention;

[0039] Figure 8 Schematic diagram of the redox module structure of the present invention.

[0040] In the figure: 1. Base; 2. Cabinet; 3. Cabinet door; 4. Ventilation window; 5. Protective shell; 6. Paint can; 7. First processor; 8. Handle; 9. Slide slot; 10. First motor; 11. First rotating shaft; 12. Ball screw; 13. Clamping block; 14. Connecting rod; 15. Fixing block; 16. Sleeve rod; 17. Coating roller; 18. Connecting pipe; 19. Transfer box; 20. Electronically controlled pump; 21. Rotating hose; 22. Second motor; 23 , second rotating shaft; 24, connecting box; 25, booster pump; 26, shunt pipe; 27, spray head; 28, third motor; 29, third rotating shaft; 30, sealing leaf; 31, ventilation leaf slot; 32, gas concentration sensor; 33, second processor; 34, temperature and humidity sensor; 35, holographic sensing module; 36, power supply box; 37, gas expansion electronic valve; 38, electric support arm; 39, cathode needle; 40, anode needle; 41, gas exchange column. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0044] See also Figure 1 、 Figure 2 and Figure 7The present invention provides an embodiment of a corrosion-resistant metal closed ring main unit based on holographic sensing technology, comprising a base 1, a cabinet 2, and a holographic sensing module 35. The cabinet 2 is fixedly mounted on the top of the outer wall of the base 1, and the holographic sensing module 35 is fixedly mounted on the bottom of the inner wall of the cabinet 2.

[0045] The holographic sensing module 35 is composed of a laser source, a beam splitter, a holographic grating array, a photodetector and a signal processing unit;

[0046] The laser source emits laser light coupled to a beam splitter via a micro-optical fiber, and the incident light is introduced into the reference arm and the measuring arm respectively. A holographic grating array is provided at the end of the measuring arm. A photodetector is arranged at the overlapped position of the light beams of the measuring arm and the reference arm to capture real-time interference fringes. The photodetector is connected to a signal processing unit via a data line. The signal processing unit performs phase demodulation in real time: based on multi-wavelength phase shift interferometry and Fourier transform phase shift algorithm, the phase difference of the interference fringes is analyzed. After phase demodulation, the signal processing unit generates a local three-dimensional height map, extracts corrosion product parameters through time series comparison, and determines the corrosion type.

[0047] The cabinet door 3 is installed on the front of the outer wall of the cabinet body 2 via a detachable hinge, and a handle 8 is fixedly installed on the front of the outer wall of the cabinet door 3;

[0048] Furthermore, the cabinet door 3 is connected and installed with a detachable hinge, which is convenient for quick disassembly and replacement; the handle 8 is convenient for maintenance personnel to open the cabinet door 3;

[0049] The laser source was powered on and preheated for 30 seconds with an output power of 5 mW. The wavelengths were set to 650 nm, 780 nm, and 850 nm, respectively. The temperature was controlled at 35 ± 1 °C to ensure that the line width was ≤ 0.02 nm, the alignment error of each micro-fiber coupler was ≤ 0.1°, and the insertion loss was ≤ 0.3 dB. The driving voltage of the piezoelectric delay line within the FPGA was 0-150 V, which was used to adjust the optical path difference between the reference arm and the measurement arm to ≤ λ / 20. The standard reference plate was scanned, 10 sets of interferograms were collected, the reference phase was calculated, and stored in the signal processing unit.

[0050] The laser is divided into a reference arm and a measuring arm by a beam splitter. The grating of the holographic grating array at the end of the measuring arm is always 300nm. In the area to be measured on the inner wall of cabinet 2, the reference arm and the measuring arm beams overlap. The photodetector has a collection area of ​​20mm×20mm, a resolution of 1024×1024px, a pixel pitch of 2.2um, a frame rate of 1200fps, and an exposure time of 800us. The raw grayscale data is transmitted to the FPGA via the LVDS data line, with an inter-frame delay of 0.5ms.

[0051] For each wavelength λ i(t=1...3), apply four-step phase shift (0, Π / 2, Π, 3Π / 2) in sequence, with a phase shift accuracy of ±0.01rad, use the Fourier transform phase shift algorithm to calculate the phase of each wavelength, and then realize phase conversion by synthesizing the wavelength; map the phase to height, each acquisition interval is 1h, and make a difference with the baseline data 24h ago. The Δh threshold of 100nm is used to determine the beginning of corrosion. Pitting detection: extract the connected domain area > 5um 2 Marked as pitting corrosion; Crevice corrosion: linear connected domain width <10 um;

[0052] Interference fringe intensity model: I k (x,y)=A(x,y)+B(x,y)cos[φ(x,y)+δ k ]

[0053] Among them, I k (x,y): grayscale intensity detected at the kth phase shift (k=1, 2, 3, 4);

[0054] A(x,y): background intensity distribution;

[0055] B(x,y): modulation signal amplitude, related to interference contrast;

[0056] φ(x,y): the phase quantity introduced by the surface to be measured;

[0057] δ k : phase shift of the kth step;

[0058] Multi-wavelength synthesis without ambiguity phase:

[0059] Composite wavelength: For three groups of wavelengths λ1λ2λ3, the equivalent composite wavelength Λ=λ1λ2λ3 / λ1λ2+λ2λ3+λ1λ3; λ i Laser source wavelength, Λ extended measurement range, ≈1.75um;

[0060] Unambiguous phase unwrapping: Multi-wavelength phase unwrapping is performed based on the least squares branch removal method to obtain the "absolute phase" φabs(x,y), which satisfies: φabs(x,y)=φ(x,y)+2Πn(x,y), where n(x,y) is the number of micro-integer phase jumps.

[0061] Phase-height mapping: h(x,y)=Λ / 2[φabs(x,y)-φ0(x,y)];

[0062] h(x,y): local height distribution relative to the datum reference plate;

[0063] φ0(x,y): reference phase;

[0064] Unit: The calibration error of height h can be controlled to ≤10nm;

[0065] Corrosion volume and rate extraction:

[0066] Height difference:

[0067] Δh(x,y)=h t (x,y)-h t-T (x,y);

[0068] H t , h t-T : The height graph of the current time t and the previous cycle;

[0069] If Δh(x,y)>h th (threshold 100nm), determined as corrosion area;

[0070] Corrosion volume:

[0071]

[0072] Where, Δx=Δy=2.2um: pixel pitch;

[0073] V: total volume of metal loss per unit time;

[0074] Corrosion rate:

[0075] R=V / ST

[0076] S: measurement area, S=N px ×ΔxΔy;

[0077] T: time interval;

[0078] R: corrosion rate;

[0079] Ensure that the holographic sensing module 35 can perform highly sensitive and quantitative online monitoring of micro-corrosion on the metal surface under various environmental conditions, and provide accurate data support for subsequent dynamic protection.

[0080] See also Figure 1 and Figure 3 , an embodiment provided by the present invention: a corrosion-resistant metal closed ring network cabinet based on holographic sensing technology, wherein a drive module is fixedly installed on the inner wall side and back of the cabinet body 2, and the drive module includes: a first motor 10, a ball screw 12 and a clamping block 13;

[0081] Sliding grooves 9 are provided on the side and back of the inner wall of the cabinet 2. A first motor 10 is fixedly installed on the bottom of the inner wall of the sliding groove 9. The first motor 10 is connected to the signal processing unit through a data signal line. A first rotating shaft 11 is fixedly installed on the top of the outer wall of the first motor 10. A ball screw 12 is fixedly installed on the top of the outer wall of the first rotating shaft 11. A clamping block 13 is sleeved on the outer wall of the ball screw 12, and the clamping block 13 is clamped in the sliding groove 9 and slides up and down;

[0082] The driving module is fixedly mounted with a coating module via a connecting rod 14, and the coating module is used to perform surface protection coating on the inner wall of the cabinet 2 according to the corrosion situation;

[0083] The coating module includes: a connecting rod 14, a fixing block 15 and a coating roller 17;

[0084] A connecting rod 14 is fixedly mounted on the front of the outer wall of the clamping block 13, a fixing block 15 is fixedly mounted on the front of the outer wall of the connecting rod 14, a sleeve rod 16 is fixedly mounted on the side of the outer wall of the fixing block 15, and a coating roller 17 is movably mounted on the outer wall of the sleeve rod 16;

[0085] Furthermore, the first motor 10 is started after receiving the corrosion repair signal sent by the signal processing unit. The first motor 10 drives the first rotating shaft 11 to rotate, and the first rotating shaft 11 drives the ball screw 12 to rotate. The ball screw 12 drives the block 13 to slide up and down in the sliding groove 9. The sliding groove 9 limits the rotation of the block 13 to prevent the block 13 from rotating with the rotation of the ball screw 12. The block 13 drives the fixed block 15 to move up and down through the connecting rod 14, and the fixed block 15 drives the sleeve rod 16 to move. At this time, the coating roller 17 is close to the inner wall of the cabinet 2 and rotates around the sleeve rod 16. The coating roller 17 that moves up and down and rolls evenly coats the anti-corrosion paint sprayed on the inner wall of the cabinet 2, so that the corroded area is coated with the anti-corrosion paint. On the one hand, the corroded area is repaired, and on the other hand, the corrosion protection of the inner wall of the cabinet 2 is strengthened, thereby improving the corrosion resistance of the cabinet 2 and extending the service life of the equipment.

[0086] See also Figure 4 and Figure 5 , an embodiment provided by the present invention: a corrosion-resistant metal closed ring network cabinet based on holographic sensing technology, wherein a pumping module is fixedly installed on the top of the outer wall of the cabinet body 2, and the pumping module includes: a paint tank 6, a transfer box 19 and an electronic control pump 20;

[0087] A protective shell 5 is fixedly mounted on the top of the outer wall of the cabinet 2, a paint tank 6 is fixedly mounted on the top of the outer wall of the protective shell 5, a transfer box 19 is fixedly mounted on the bottom of the inner wall of the protective shell 5, an electronic control pump 20 is fixedly mounted on the bottom of the inner wall of the transfer box 19, and the electronic control pump 20 is connected to the signal processing unit via a data signal line; a connecting pipe 18 is fixedly mounted on the top of the outer wall of the electronic control pump 20, and the connecting pipe 18 is connected to the bottom interface of the paint tank 6;

[0088] A spraying module is fixedly installed on the top of the inner wall of the cabinet 2, and the spraying module includes: a second motor 22, a connection box 24 and a spray head 27;

[0089] A second motor 22 is fixedly mounted on the top of the inner wall of the cabinet 2, and the second motor 22 is connected to the signal processing unit via a data signal line. A second rotating shaft 23 is fixedly mounted on the bottom of the outer wall of the second motor 22, and a connecting box 24 is fixedly mounted on the bottom of the outer wall of the second rotating shaft 23. A booster pump 25 is fixedly mounted on the bottom of the inner wall of the connecting box 24, and the booster pump 25 is connected to the electronic control pump 20 via a rotating hose 21. The booster pump 25 is connected to the signal processing unit via a data signal line. A shunt pipe 26 is fixedly mounted on the side of the outer wall of the connecting box 24, and the shunt pipe 26 is connected to the booster pump 25. A spray head 27 is fixedly mounted on the side of the outer wall of the shunt pipe 26;

[0090] Furthermore, the electronically controlled pump 20 starts after receiving the anti-corrosion paint spraying signal sent by the signal processing unit. The electronically controlled pump 20 starts to pump the anti-corrosion paint in the paint tank 6 into the booster pump 25 through the connecting pipe 18. The second motor 22 starts after receiving the spraying signal. The second motor 22 drives the second rotating shaft 23 to rotate, and the second rotating shaft 23 drives the connecting box 24 to rotate. The connecting box 24 drives the booster pump 25 to rotate. The booster pump 25 drives the diversion pipe 26 and the spray head 27 to rotate. The booster pump 25 pumps the anti-corrosion paint through the diversion pipe 26 to the spray head 27 and rotates and sprays it to various surfaces of the inner wall of the cabinet 2, and cooperates with the coating module to perform corrosion repair and protection treatment on the inner wall of the cabinet 2. The rotary spraying enables each point on the inner wall of the cabinet 2 to be evenly sprayed with the anti-corrosion paint, ensuring complete treatment, improving resource utilization, and preventing paint waste.

[0091] See also Figure 2 and Figure 7 , an embodiment provided by the present invention: a corrosion-resistant metal closed ring network cabinet based on holographic sensing technology, wherein an environmental detection module is fixedly installed on the top of the inner wall of the cabinet body 2, and the environmental detection module includes: a first processor 7, a second processor 33, a temperature and humidity sensor 34 and a gas concentration sensor 32;

[0092] A temperature and humidity sensor 34 is fixedly mounted on the top of the inner wall of the cabinet 2, a second processor 33 is fixedly mounted on the top of the outer wall of the cabinet 2, and the temperature and humidity sensor 34 is connected to the second processor 33 via a data line. A gas concentration sensor 32 is fixedly mounted on the top of the inner wall of the cabinet 2, a first processor 7 is fixedly mounted on the top of the outer wall of the cabinet 2, and the gas concentration sensor 32 is connected to the first processor 7 via a data line.

[0093] Furthermore, the temperature and humidity sensor 34 monitors the temperature and humidity parameters in the cabinet 2 in real time, and transmits the temperature and humidity parameters to the second processor 33 for noise reduction processing; the gas concentration sensor 32 monitors the concentration parameters of oxygen, nitrogen and corrosive gases in the cabinet 2 in real time, and transmits the collected gas concentration parameter data to the first processor 7 in real time for classification processing. The temperature, humidity and gas concentration parameters in the cabinet 2 are monitored in real time through the environmental detection module, providing stable and reliable data support for subsequent corrosion repair and protection treatment, ensuring timely protection treatment, and improving equipment service life.

[0094] See also Figure 6 and Figure 7 The present invention provides an embodiment of a corrosion-resistant metal closed ring network cabinet based on holographic sensing technology, wherein a drying and ventilation module is fixedly installed on the side of the outer wall of the cabinet body 2, and the drying and ventilation module includes: a ventilation window 4, a third motor 28 and a sealing leaf 30;

[0095] A ventilation window 4 is fixedly mounted on the outer wall side of the cabinet 2, and a ventilation leaf slot 31 is opened on the outer wall side of the ventilation window 4. A third motor 28 is fixedly mounted on the inner wall side of the ventilation window 4. The third motor 28 is connected to the second processor 33 via a data signal line. A third rotating shaft 29 is fixedly mounted on the outer wall side of the third motor 28. A sealing leaf 30 is fixedly sleeved on the outer wall side of the third rotating shaft 29, and the sealing leaf 30 has the same size and shape as the ventilation leaf slot 31;

[0096] Furthermore, when the second processor 33 recognizes that the temperature and humidity inside the cabinet 2 exceed the upper limit of the standard range, it sends an adjustment signal to the third motor 28, the third motor 28 starts, and the third motor 28 drives the third shaft 29 to rotate, and the third shaft 29 drives the sealing leaf 30 to rotate, and a gap is formed between the sealing leaf 30 and the ventilation leaf slot 31. At this time, the fan driven by the fixed servo motor on the other side of the cabinet 2 starts, and the hot and humid air in the cabinet 2 is blown out of the cabinet 2 through the ventilation window 4, ensuring that the cabinet 2 always maintains a dry and low-temperature state, preventing the hot and humid air from providing a corrosive environment and accelerating the corrosion rate of the corrosion area on the inner wall of the cabinet 2.

[0097] See also Figure 1 and Figure 8 , an embodiment provided by the present invention: a corrosion-resistant metal closed ring main unit based on holographic sensing technology, wherein a redox module is fixedly installed on the bottom of the inner wall of the base 1, and the redox module includes: a power box 36, a cathode needle 39 and an anode needle 40;

[0098] A power supply box 36 is fixedly mounted on the bottom of the inner wall of the base 1. The power supply box 36 is connected to the signal processing unit via a data signal line. Electric support arms 38 are fixedly mounted on both sides of the outer wall of the power supply box 36. A cathode needle 39 is fixedly mounted on the outer wall side of one side of the electric support arm 38, and an anode needle 40 is fixedly mounted on the outer wall side of the other side of the electric support arm 38. The cathode needle 39 and the anode needle 40 are closely attached to the inner wall of the cabinet 2.

[0099] A gas exchange column 41 is fixedly mounted on the bottom of the inner wall of the cabinet 2, and a gas expansion electronic valve 37 is fixedly mounted on the top of the inner wall of the base 1. The gas expansion electronic valve 37 is connected to the first processor 7 via a data signal line, and the gas expansion electronic valve 37 is connected to the gas exchange column 41 via an air pipe. An expandable gas bladder is fixedly mounted in the gas expansion electronic valve 37 for storing gas.

[0100] Furthermore, the signal processing unit sends a corrosion redox signal to the power box 36 through the data signal line. The power box 36 energizes the cathode needle 39 and the anode needle 40 installed on both sides of the electric support arm 38. The cathode needle 39 and the anode needle 40 are close to the inner wall of the cabinet 2, and the corrosion products on the inner wall of the cabinet 2 are oxidized and reduced by the electrode redox reaction. Gas is generated during the redox process. The first processor 7 transmits the collected gas concentration data to the gas expansion electronic valve 37. The gas expansion electronic valve 37 is started, and the generated oxygen is absorbed into the expandable gas bubble in the gas expansion electronic valve 37 through the molecular permeable membrane coated on the gas exchange column 41 for storage, and is released to participate in the reaction before the next redox reaction. At the same time, the storage of gas can significantly reduce the temperature and pressure in the cabinet 2, reduce the corrosion rate, and increase the service life of the equipment.

[0101] Working principle: First, the holographic sensing module is used to detect the corrosion of the inner wall of the closed ring network cabinet 2 in real time, including the corrosion area, corrosion type and corrosion rate, and the corrosion repair and protection signals are transmitted to the spraying module, coating module and redox module;

[0102] Next, the environmental detection module monitors the environmental parameters inside the cabinet 2 in real time, uses the redox module to perform redox reaction treatment on the corrosion products on the inner wall of the cabinet 2, and cooperates with the drying and ventilation module to keep the cabinet 2 dry;

[0103] Finally, the spraying module evenly sprays the anti-corrosion paint on the inner wall of the cabinet 2, and the driving module drives the coating module to evenly coat the inner wall of the cabinet 2 with the paint, thereby protecting the inner wall of the cabinet 2 and extending the service life of the equipment.

[0104] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A corrosion-resistant metal closed ring network cabinet based on holographic sensing technology, comprising a base (1), a cabinet body (2) and a holographic sensing module (35), characterized in that: A cabinet (2) is fixedly mounted on the top of the outer wall of the base (1), and a holographic sensing module (35) is fixedly mounted on the bottom of the inner wall of the cabinet (2); The holographic sensing module (35) is composed of a laser source, a beam splitter, a holographic grating array, a photodetector, and a signal processing unit; The laser source emits laser light coupled to a beam splitter via a micro-optical fiber, and the incident light is introduced into the reference arm and the measuring arm respectively. A holographic grating array is provided at the end of the measuring arm. A photodetector is arranged at the overlapped position of the light beams of the measuring arm and the reference arm to capture real-time interference fringes. The photodetector is connected to a signal processing unit via a data line. The signal processing unit performs phase demodulation in real time: based on multi-wavelength phase shift interferometry and Fourier transform phase shift algorithm, the phase difference of the interference fringes is analyzed. After phase demodulation, the signal processing unit generates a local three-dimensional height map, extracts corrosion product parameters through time series comparison, and determines the corrosion type. A drive module is fixedly mounted on the side and back of the inner wall of the cabinet (2), and the drive module comprises: a first motor (10), a ball screw (12) and a clamping block (13); The cabinet (2) has a sliding groove (9) on the side and back of the inner wall, a first motor (10) is fixedly installed on the bottom of the inner wall of the sliding groove (9), the first motor (10) is connected to the signal processing unit via a data signal line, a first rotating shaft (11) is fixedly installed on the top of the outer wall of the first motor (10), a ball screw (12) is fixedly installed on the top of the outer wall of the first rotating shaft (11), a clamping block (13) is sleeved on the outer wall of the ball screw (12), and the clamping block (13) is clamped in the sliding groove (9) and slides up and down; The driving module is fixedly mounted with a coating module via a connecting rod (14), and the coating module is used to perform surface protective coating on the inner wall of the cabinet (2) according to the corrosion situation; The coating module comprises: a connecting rod (14), a fixing block (15) and a coating roller (17); A connecting rod (14) is fixedly mounted on the front of the outer wall of the clamping block (13); a fixing block (15) is fixedly mounted on the front of the outer wall of the connecting rod (14); a sleeve rod (16) is fixedly mounted on the side of the outer wall of the fixing block (15); and a coating roller (17) is movably mounted on the outer wall of the sleeve rod (16); A pumping module is fixedly mounted on the top of the outer wall of the cabinet (2), and the pumping module comprises: a paint tank (6), a transfer box (19) and an electronic control pump (20); A protective shell (5) is fixedly mounted on the top of the outer wall of the cabinet (2), a paint tank (6) is fixedly mounted on the top of the outer wall of the protective shell (5), a transfer box (19) is fixedly mounted on the bottom of the inner wall of the protective shell (5), an electronic control pump (20) is fixedly mounted on the bottom of the inner wall of the transfer box (19), and the electronic control pump (20) is connected to the signal processing unit via a data signal line; a connecting pipe (18) is fixedly mounted on the top of the outer wall of the electronic control pump (20), and the connecting pipe (18) is connected to the bottom interface of the paint tank (6); A spraying module is fixedly mounted on the top of the inner wall of the cabinet (2), and the spraying module comprises: a second motor (22), a connection box (24) and a spray head (27); A second motor (22) is fixedly mounted on the top of the inner wall of the cabinet (2), and the second motor (22) is connected to the signal processing unit via a data signal line. A second rotating shaft (23) is fixedly mounted on the bottom of the outer wall of the second motor (22), and a connecting box (24) is fixedly mounted on the bottom of the outer wall of the second rotating shaft (23). A booster pump (25) is fixedly mounted on the bottom of the inner wall of the connecting box (24), and the booster pump (25) is connected to the electronic control pump (20) via a rotating hose (21). The booster pump (25) is connected to the signal processing unit via a data signal line. A shunt pipe (26) is fixedly mounted on the side of the outer wall of the connecting box (24), and the shunt pipe (26) is connected to the booster pump (25). A spray head (27) is fixedly mounted on the side of the outer wall of the shunt pipe (26).

2. The corrosion-resistant metal enclosed ring main unit based on holographic sensing technology according to claim 1, characterized in that: An environment detection module is fixedly installed on the top of the inner wall of the cabinet (2), and the environment detection module includes: a first processor (7), a second processor (33), a temperature and humidity sensor (34) and a gas concentration sensor (32); A temperature and humidity sensor (34) is fixedly mounted on the top of the inner wall of the cabinet (2), a second processor (33) is fixedly mounted on the top of the outer wall of the cabinet (2), and the temperature and humidity sensor (34) is connected to the second processor (33) via a data line. A gas concentration sensor (32) is fixedly mounted on the top of the inner wall of the cabinet (2), a first processor (7) is fixedly mounted on the top of the outer wall of the cabinet (2), and the gas concentration sensor (32) is connected to the first processor (7) via a data line.

3. The corrosion-resistant metal enclosed ring main unit based on holographic sensing technology according to claim 2, characterized in that: A drying and ventilation module is fixedly mounted on the side of the outer wall of the cabinet (2), and the drying and ventilation module comprises: a ventilation window (4), a third motor (28) and a sealing leaf (30); A ventilation window (4) is fixedly mounted on the side of the outer wall of the cabinet (2), a ventilation leaf slot (31) is provided on the side of the outer wall of the ventilation window (4), a third motor (28) is fixedly mounted on the side of the inner wall of the ventilation window (4), the third motor (28) is connected to the second processor (33) via a data signal line, a third rotating shaft (29) is fixedly mounted on the side of the outer wall of the third motor (28), a sealing leaf (30) is fixedly sleeved on the side of the outer wall of the third rotating shaft (29), and the sealing leaf (30) and the ventilation leaf slot (31) have the same size and shape.

4. The corrosion-resistant metal enclosed ring main unit based on holographic sensing technology according to claim 1, characterized in that: A redox module is fixedly mounted on the bottom of the inner wall of the base (1), and the redox module comprises: a power supply box (36), a cathode needle (39) and an anode needle (40); A power box (36) is fixedly mounted on the bottom of the inner wall of the base (1), and the power box (36) is connected to the signal processing unit through a data signal line. Electric support arms (38) are fixedly mounted on both sides of the outer wall of the power box (36), a cathode needle (39) is fixedly mounted on the outer wall side of one side of the electric support arm (38), and an anode needle (40) is fixedly mounted on the outer wall side of the other side of the electric support arm (38), and the cathode needle (39) and the anode needle (40) are closely attached to the inner wall of the cabinet (2).

5. The corrosion-resistant metal enclosed ring main unit based on holographic sensing technology according to claim 2, characterized in that: A gas exchange column (41) is fixedly mounted on the bottom of the inner wall of the cabinet (2), and a gas expansion electronic valve (37) is fixedly mounted on the top of the inner wall of the base (1). The gas expansion electronic valve (37) is connected to the first processor (7) via a data signal line, and the gas expansion electronic valve (37) is connected to the gas exchange column (41) via an air pipe. An expandable air bladder is fixedly mounted in the gas expansion electronic valve (37) for storing gas.

6. The corrosion-resistant metal enclosed ring main unit based on holographic sensing technology according to claim 1, characterized in that: A cabinet door (3) is mounted on the front of the outer wall of the cabinet body (2) via a detachable hinge, and a handle (8) is fixedly mounted on the front of the outer wall of the cabinet door (3).

Images