Corrosion monitoring device for storage tank

Abstract

The invention discloses a corrosion monitoring device for a storage tank, and relates to the technical field of storage tank monitoring, and the corrosion monitoring device comprises a monitor for monitoring the corrosion of the storage tank, the bottom of the monitor is provided with a driving wheel, the bottom of the monitor is provided with a monitoring probe attached to the inner wall of the storage tank, the bottom of the monitor is provided with a fixed block, and the fixed block is internally provided with a movable groove. The monitoring probe is inserted into the movable groove, a first sleeve is fixedly mounted in the movable groove, a second sleeve is fixedly arranged outside the monitoring probe in a sleeving manner, and an adaptive spring is connected between the first sleeve and the second sleeve. The monitoring probe can realize multi-degree-of-freedom adjustment and angle compensation, and can automatically adjust the angle and keep the optimal coupling state with the wall surface when meeting an uneven or arc area of the inner wall of the storage tank, so that the problem of loose contact is solved, and a more comprehensive monitoring effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of storage tank monitoring, and specifically, to a corrosion monitoring device for storage tanks. Background Art

[0002] In the related art, chemical storage tanks are containers for storing various chemical substances and are widely used in industries such as chemical engineering, petroleum, and pharmaceuticals. Since the stored chemical substances are usually corrosive, toxic, or flammable and explosive, the design, material selection, and safety management of chemical storage tanks are crucial.

[0003] Generally, a magnetic adsorption monitoring crawler is used for monitoring. This is an automated device that mainly moves and detects by magnetic adsorption on the inner wall of a metal storage tank and is mainly used for storage tank corrosion monitoring, wall thickness measurement, or defect detection.

[0004] The main working principle is that a permanent magnet or an electrified electromagnet generates a magnetic induction intensity of ≥0.5T to ensure that the crawler is stably adsorbed on the vertical / inverted wall surface (anti-slip force > 200N). Based on a preset detection area (such as the bottom plate and weld of the storage tank), a spiral or grid path is generated. The ultrasonic probe emits pulses and receives the echoes to calculate the wall thickness; the electrochemical signal and visual data are synchronously recorded. When the wall thickness suddenly decreases (such as < 80% of the design value) or the corrosion potential is abnormal, the position is marked and an alarm is issued.

[0005] The structures of some existing storage tanks are usually cylindrical, and the transition area between the vertical wall surface and the bottom forms an arc area. However, the curvature here may cause the probe to not be in close contact with the surface, resulting in gaps and affecting the coupling effect, thereby leading to incomplete monitoring effects.

[0006] Combining the above problems, we will find that the structures of some existing storage tanks on the market are usually cylindrical, and the transition area between the vertical wall surface and the bottom forms an arc area. When in use, it is very difficult to avoid the problem that the curvature here may cause the probe to not be in close contact with the surface, resulting in gaps and affecting the coupling effect, thereby leading to incomplete monitoring effects. And even if it can be solved, it needs to be solved with the cooperation of external tools, thus failing to achieve the desired effect. Therefore, we propose a corrosion monitoring device for storage tanks. Summary of the Invention

[0007] The purpose of the present invention is to provide a corrosion monitoring device for storage tanks to solve the problem raised in the above background art that the structures of some existing storage tanks are usually cylindrical, and the transition area between the vertical wall surface and the bottom forms an arc area. However, the curvature here may cause the probe to not be in close contact with the surface, resulting in gaps and affecting the coupling effect, thereby leading to incomplete monitoring effects.

[0008] To achieve the above object, the present invention provides the following technical solution: A corrosion monitoring device for a storage tank, including a monitor for monitoring the corrosion of the storage tank. A driving wheel is installed at the bottom of the monitor, and a monitoring probe that fits against the inner wall of the storage tank is installed at the bottom of the monitor. A fixing block is fixedly installed at the bottom of the monitor. An activity groove is formed in the fixing block. The monitoring probe is arranged in the activity groove. A first sleeve is fixedly installed in the activity groove. A second sleeve is fixedly sleeved outside the monitoring probe. A groove is formed in the fixing block. An adsorption sponge for adsorbing residual chemical liquid is arranged in the groove. A driving roller is rotatably inserted into the groove. The driving roller is located in the adsorption sponge. The detection signal output end of the monitoring probe is electrically connected to the control module of the monitor for real-time transmission of corrosion data.

[0009] Preferably, the inner diameter of the first sleeve is larger than the inner diameter of the second sleeve. The first sleeve and the second sleeve are movably hinged. A fixing rod is fixedly installed on the outside of the second sleeve. An adjusting gear is fixedly installed at the end of the fixing rod. The adjusting gear is set as a sector gear. An adjusting rack is fixedly installed in the activity groove. The adjusting gear meshes with the adjusting rack.

[0010] Preferably, a damping ring is fixedly installed in the first sleeve. The damping ring is set as a rubber ring. A limiting slider is fixedly installed on the outside of the second sleeve. A limiting chute is formed in the first sleeve. The limiting slider is slidably inserted into the limiting chute. An adaptation spring is connected between the first sleeve and the second sleeve. One end of the adaptation spring is fixedly sleeved on the outside of the first sleeve, and the other end of the adaptation spring is fixedly sleeved on the outside of the second sleeve.

[0011] Preferably, there are two groups of driving wheels. The two groups of driving wheels are symmetrically arranged on both sides of the fixing block. The driving wheels are set as magnetic wheels and are magnetically attached to the inner wall of the storage tank.

[0012] Preferably, the driving rollers are two parallel rollers rotatably connected to the groove through bearings. A closed-loop control belt is sleeved outside the driving rollers. The adsorption sponges are evenly distributed on the outer surface of the control belt. A resisting block is fixedly installed in the groove. The resisting block is set as a rubber block for pressing the adsorption sponge to be in close contact with the inner wall of the storage tank.

[0013] Preferably, a liquid squeezing plate is installed in the groove. A driving rod is installed on the side of the liquid squeezing plate. A through groove is formed in the fixing block. The through groove is communicated with the groove and the activity groove. The liquid squeezing plate is linked with the second sleeve through the driving rod. When the monitoring probe deflects, the liquid squeezing plate moves synchronously to squeeze the adsorption sponge.

[0014] Preferably, the liquid squeezing plate is arranged as an inclined plate, the liquid squeezing plate is located above the adsorption sponge, a liquid guiding groove is formed in the groove, a liquid guiding pipe is fixedly communicated with the bottom of the liquid guiding groove, the liquid guiding groove is communicated with the groove, the liquid guiding groove is located at the bottom side of the adsorption sponge, and a recovery cylinder for recovering residual chemical liquid is movably installed on the side of the fixed block.

[0015] Preferably, one end of the liquid guiding pipe away from the liquid guiding groove is inserted into the recovery cylinder, the liquid guiding pipe is arranged as a flexible pipe, a liquid inlet one-way valve is arranged in the liquid guiding pipe, and a sealing rubber strip is installed at the insertion part of the liquid guiding pipe and the recovery cylinder. The sealing rubber strip is arranged as a rubber strip.

[0016] Preferably, the recovery cylinder is arranged as a corrosion-resistant plastic cylinder, a cylinder cover is installed on the recovery cylinder by means of threads, a clamping block is installed on the side of the recovery cylinder, a clamping groove corresponding to the clamping block is formed in the side of the fixed block, and the clamping block is engaged with the clamping groove.

[0017] Preferably, a telescopic rod is installed at the bottom of the monitor, a marking pen is installed at the bottom of the telescopic rod, the telescopic rod is arranged as an electric rod, and the marking pen is located on the side of the monitoring probe.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the cooperation of the first sleeve, the second sleeve, the adaptive spring, the adjusting gear and the adjusting teeth, the monitoring probe of the present invention can realize multi-degree-of-freedom adjustment and angle compensation. When encountering uneven or arc-shaped areas on the inner wall of the storage tank, the probe can automatically adjust the angle and maintain the best coupling state with the wall surface, thus solving the problem of poor contact and ensuring a more comprehensive monitoring effect. At the same time, it is composed of a rotating adsorption sponge and an extrusion driving roller, so that the surface can be quickly cleaned. Since the adsorption sponge is located in front of the monitoring probe, it can first adsorb the chemical liquid remaining on the inner wall of the storage tank, avoiding interference of the residual liquid on the monitoring probe, thereby improving the accuracy of the monitoring probe.

[0019] 2. Through the arrangement of the liquid squeezing plate, the squeezing process of the present invention is more in line with the movement direction of the sponge, and the liquid in the sponge can be fully squeezed out, ensuring the continuous adsorption capacity of the sponge, enabling it to be recycled continuously, improving the cleaning efficiency and service life of the adsorption sponge. By arranging the liquid guiding groove formed in the groove at the bottom side of the adsorption sponge, the chemical liquid extruded from the adsorption sponge can be timely received. Through the setting that the liquid guiding groove is communicated with the groove, the liquid can smoothly flow into the liquid guiding groove, thus avoiding the accumulation of liquid in the groove and ensuring the smoothness of the liquid recovery process.

[0020] 3. When the monitoring probe detects corrosion on the inner wall of the storage tank, the monitor will send a signal to the telescopic rod at its bottom, which will then extend according to actual needs, so that the marker pen installed at the bottom of the telescopic rod and on the side of the monitoring probe touches the inner wall of the storage tank to mark the corrosion location, facilitating subsequent maintenance personnel to quickly locate and handle it. Description of the Drawings

[0021] Figure 1 It is a schematic perspective view of the main body of the present invention; Figure 2 It is a schematic perspective view of the bottom of the main body of the present invention; Figure 3 It is a schematic sectional view of the main body of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic view of part A in; Figure 5 It is a schematic partial perspective sectional view of the present invention; Figure 6 It is a schematic partial plane sectional view of the present invention; Figure 7 It is a schematic internal perspective view of the present invention; Figure 8 It is a schematic perspective view of the recovery cylinder of the present invention; Figure 9 It is a schematic partial perspective view of the adjustment structure of the present invention; Figure 10 It is a schematic plane sectional view of the adjustment structure of the present invention.

[0022] In the figure: 110, monitor; 111, driving wheel; 112, monitoring probe; 113, fixed block; 114, movable groove; 115, first sleeve; 116, second sleeve; 117, adaptive spring; 118, groove; 119, adsorption sponge; 120, driving roller; 121, fixed rod; 122, adjusting gear; 123, adjusting rack; 124, damping ring; 125, limiting slider; 126, limiting chute; 127, control belt; 128, abutting block; 130, liquid squeezing plate; 131, driving rod; 132, through groove; 133, liquid guiding groove; 134, recovery cylinder; 135, liquid guiding pipe; 136, sealing strip; 137, cylinder cover; 138, clamping block; 139, clamping groove; 140, telescopic rod; 141, marker pen; 142, inlet check valve. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1: Please refer to Figures 1 - 10 , the present invention provides a technical solution: a corrosion monitoring device for a storage tank, including a monitor 110 for monitoring the corrosion of the storage tank. A driving wheel 111 is installed at the bottom of the monitor 110, and a monitoring probe 112 that fits the inner wall of the storage tank is installed at the bottom of the monitor 110. A fixing block 113 is fixedly installed at the bottom of the monitor 110. An activity groove 114 is opened in the fixing block 113. The monitoring probe 112 is arranged in the activity groove 114. A first sleeve 115 is fixedly installed in the activity groove 114. A second sleeve 116 is fixedly sleeved outside the monitoring probe 112. An adaptation spring 117 is connected between the first sleeve 115 and the second sleeve 116. A groove 118 is opened in the fixing block 113. An adsorption sponge 119 for adsorbing residual chemical liquid is arranged in the groove 118. A driving roller 120 is rotatably inserted into the groove 118. The driving roller 120 is located in the adsorption sponge 119. The detection signal output end of the monitoring probe 112 is electrically connected to the control module of the monitor 110 for real-time transmission of corrosion data.

[0025] The inner diameter of the first sleeve 115 is larger than the inner diameter of the second sleeve 116. The first sleeve 115 and the second sleeve 116 are movably hinged. A fixing rod 121 is fixedly installed on the outer side of the second sleeve 116. An adjusting gear 122 is fixedly installed at the end of the fixing rod 121. The adjusting gear 122 is set as a sector gear. An adjusting rack 123 is fixedly installed in the activity groove 114. The adjusting gear 122 meshes with the adjusting rack 123.

[0026] A damping ring 124 is fixedly installed in the first sleeve 115. The damping ring 124 is set as a rubber ring. A limiting slider 125 is fixedly installed on the outer side of the second sleeve 116. A limiting chute 126 is opened in the first sleeve 115. The limiting slider 125 is slidably inserted into the limiting chute 126. An adaptation spring 117 is connected between the first sleeve 115 and the second sleeve 116. One end of the adaptation spring 117 is fixedly sleeved on the outer side of the first sleeve 115, and the other end of the adaptation spring 117 is fixedly sleeved on the outer side of the second sleeve 116.

[0027] There are two sets of driving wheels 111, which are symmetrically arranged on both sides of the fixed block 113. The driving wheels 111 are set as magnetic wheels and are magnetically attached to the inner wall of the storage tank. The driving rollers 120 are two parallel rollers, which are rotationally connected to the groove 118 through bearings. A closed-loop control belt 127 is sleeved outside the driving rollers 120. The adsorption sponges 119 are evenly distributed on the outer surface of the control belt 127. A resisting block 128 is fixedly installed in the groove 118. The resisting block 128 is set as a rubber block, and the elastic modulus of the resisting block 128 is higher than the maximum extension degree of the monitoring probe 112, which is used to press the adsorption sponge 119 to be in close contact with the inner wall of the storage tank.

[0028] Two sets of magnetic driving wheels 111 are symmetrically arranged at the bottom of the main body of the monitor 110 for moving on the inner wall of the storage tank; the adaptive detection module includes a monitoring probe 112 connected by a sleeve spring mechanism, which can realize multi-degree-of-freedom adjustment; the cleaning and recycling module is composed of a rotating adsorption sponge 119 and an extrusion driving roller 120 to realize the cleaning of residual liquid.

[0029] In this way, through the coordinated cooperation of the magnetic driving wheels 111 and the adaptive monitoring probe 112, it can not only ensure the stable movement of the device on the complex curved surface, but also ensure that the detection probe always maintains the best coupling state with the wall surface. In addition, the combined design of the gear-rack adjustment mechanism and the damping ring 124 enables the probe to automatically adjust the angle and suppress vibration when encountering uneven wall surfaces, significantly improving the detection accuracy.

[0030] As a further limitation of the present invention, the spring mechanism includes a first sleeve 115, a second sleeve 116 and an adaptive spring 117. A rubber damping ring 124 is arranged in the first sleeve 115. The second sleeve 116 is matched with the sliding groove of the first sleeve 115 through a limiting slider 125 to form a stable axial buffer. Specifically, the adjusting gear 122 adopts a 1 / 4 sector gear design, and the meshing stroke with the rack is about 20 mm, which can generate an angle compensation of about 5°-8°.

[0031] When the monitor 110 is started and works normally, the adaptive spring 117 is compressed to generate a spring pre-tightening force of 50±5 N, so that the monitoring probe 112 is closely attached to the inner wall of the storage tank. At this time, the monitoring probe 112 starts to carry out corrosion monitoring work. When the monitor 110 moves to the arc surface, there will be a certain distance between the monitor 110 and the arc surface. At this time, the compressed adaptive spring 117 will be released, driving the monitoring probe 112 to fit with the arc surface. At the same time, the adjusting gear 122 can move relative to the adjusting rack 123 according to the actual situation of the wall surface to realize angle compensation and ensure the best coupling state between the monitoring probe 112 and the wall surface.

[0032] It should be noted that the monitoring probe is set as an ultrasonic probe. The signal processing technology of the specific driving wheel 111 and the monitoring probe 112 and the like are well-known in the art and will not be elaborated here.

[0033] The specific implementation manner of this embodiment is as follows: Start the driving wheel 111. Since the driving wheel 111 is set as a magnetic wheel and magnetically adheres to the inner wall of the storage tank, the main body of the monitor 110 will move along the inner wall of the storage tank. The two groups of driving wheels 111 are symmetrically arranged on both sides of the fixed block 113 to ensure the stability of the device movement. During the movement of the device, the monitoring probe 112 adheres to the inner wall of the storage tank for corrosion monitoring.

[0034] When encountering unevenness on the inner wall of the storage tank, the monitoring probe 112 realizes multi-degree-of-freedom adjustment through the cooperation of the first sleeve 115, the second sleeve 116 and the adaptive spring 117. The second sleeve 116 slides in the first sleeve 115, and the cooperation of the adaptive spring 117 and the damping ring 124 plays a buffering role. By adjusting the meshing of the adjusting gear 122 and the adjusting rack 123, the monitoring probe 112 automatically adjusts the angle to maintain the best coupling state with the wall surface, thereby improving the detection accuracy.

[0035] The operation of the driving wheel 111 will drive the driving roller 120 to rotate, so as to drive the control belt 127 and the adsorption sponge 119 installed on its outer side to rotate. At this time, the adsorption sponge 119 adheres to the inner wall of the storage tank under the action of the abutting block 128, so as to adsorb the residual chemical liquid and realize the cleaning of the detection surface. And because the cleaning adsorption sponge 119 is located in front of the monitoring probe 112, the adsorption sponge 119 will first adsorb the chemical liquid remaining on the inner wall of the storage tank, thereby improving the accuracy of the monitoring probe 112. When the detection is completed, stop the operation of the driving wheel 111 and remove the monitor 110 from the inner wall of the storage tank.

[0036] Embodiment 2: Please refer to Figures 1 - 10 , the present invention provides a technical solution: a corrosion monitoring device for a storage tank, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0037] As a further limitation of the present invention, a liquid squeezing plate 130 is installed in the groove 118, a driving rod 131 is installed on the side of the liquid squeezing plate 130, a through groove 132 is opened in the fixed block 113, and the through groove 132 is communicated with the groove 118 and the moving groove 114. The liquid squeezing plate 130 is linked with the second sleeve 116 through the driving rod 131. When the monitoring probe 112 deflects, the liquid squeezing plate 130 moves synchronously to squeeze the adsorption sponge 119.

[0038] The liquid squeezing plate 130 is arranged as an inclined plate. The liquid squeezing plate 130 is located above the adsorption sponge 119. A liquid guiding groove 133 is formed in the groove 118. The liquid guiding groove 133 communicates with the groove 118. A liquid guiding pipe 135 is fixedly communicated with the bottom of the liquid guiding groove 133. The liquid guiding groove 133 is located at the bottom side of the adsorption sponge 119. A recovery cylinder 134 for recovering residual chemical liquid is movably installed on the side of the fixing block 113.

[0039] The liquid squeezing plate 130 is arranged as an inclined plate and is located above the adsorption sponge 119. When the adsorption sponge 119 rotates past the liquid squeezing plate 130, the inclined liquid squeezing plate 130 can effectively squeeze the sponge that has adsorbed a large amount of residual chemical liquid. One end of the liquid guiding pipe 135 away from the liquid guiding groove 133 is inserted into the recovery cylinder 134, and the other end of the liquid guiding pipe 135 is inserted into the liquid guiding groove 133. The liquid guiding pipe 135 is arranged as a flexible pipe. A liquid inlet check valve 142 is arranged in the liquid guiding pipe 135. A sealing rubber strip 136 is installed at the insertion part of the liquid guiding pipe 135 and the recovery cylinder 134. The sealing rubber strip 136 is arranged as a rubber strip.

[0040] It should be added that the recovery cylinder 134 is used to recover the residual chemical liquid. The liquid guiding pipe 135 connects the liquid guiding groove 133 and the recovery cylinder 134. The liquid guiding pipe 135 is arranged as a flexible pipe and has a certain flexibility, which is convenient for adapting to the connection requirements when the device moves at different positions and angles. The setting of the liquid inlet check valve 142 ensures that the liquid can only flow unidirectionally from the liquid guiding groove 133 into the recovery cylinder 134, preventing the liquid from flowing back and ensuring the reliability of the recovery process. The sealing rubber strip 136 is arranged at the insertion part of the liquid guiding pipe 135 and the recovery cylinder 134 and is made of rubber material, which can effectively prevent liquid leakage and ensure the tightness and safety of the entire recovery system.

[0041] At the same time, the liquid inlet check valve 142 mentioned in this article is a prior art, and its working principle is well-known to those skilled in the art. Its specific model is not limited in the present invention and can be selected according to actual needs.

[0042] The specific implementation of this embodiment is as follows: When the monitor 110 runs to an uneven or curved area of the storage tank, the monitoring probe 112 will adapt to the elastic force of the adaptation spring 117, so that the monitoring spring will adaptively fit the curved area of the storage tank. At this time, since the liquid squeezing plate 130 is fixedly connected to the second sleeve 116 through the driving rod 131, and the monitoring probe 112 is fixedly inserted into the second sleeve 116, when the monitoring probe 112 changes, it will synchronously drive the second sleeve 116 and the driving rod 131 to move, thereby controlling the liquid squeezing plate 130 to move towards the adsorption sponge 119 for extrusion, so that the chemical liquid in the adsorption sponge 119 is extruded into the liquid guide groove 133 and recovered into the recovery cylinder 134 through the inlet check valve 142 and the liquid guide pipe 135. When the monitor 110 leaves the curved area of the storage tank, the monitoring probe 112 will be reset due to the drive of the adaptation spring 117, and the liquid squeezing plate 130 will be reset synchronously, so as to recover the residual chemical liquid. This dynamic change enables the adsorption sponge 119 to clean in time according to the operating state of the device, ensuring the smooth progress of the monitoring work.

[0043] Embodiment 3: Please refer to Figures 1 - 10 , the present invention provides a technical solution: a corrosion monitoring device for a storage tank, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0044] As a further limitation of the present invention, the recovery cylinder 134 is set as a corrosion-resistant plastic cylinder. A cylinder cover 137 is installed on the recovery cylinder 134 by threading. A clamping block 138 is installed on the side of the recovery cylinder 134. A clamping groove 139 corresponding to the clamping block 138 is opened on the side of the fixed block 113. The clamping block 138 is clamped with the clamping groove 139. An expansion rod 140 is installed at the bottom of the monitor 110. The expansion rod 140 is set as an electric rod. A marking pen 141 is installed at the bottom of the expansion rod 140. The marking pen 141 is located on the side of the monitoring probe 112.

[0045] The recovery cylinder 134 is fixedly clamped to the side of the fixed block 113 through the clamping block 138. A rubber sealing strip 136 is installed at the insertion part of the liquid guide pipe 135 and the recovery cylinder 134 to prevent liquid leakage. The recovery cylinder 134 is a corrosion-resistant plastic cylinder, and the cylinder cover 137 installed by threading ensures good sealing performance, and can safely store the recovered chemical liquid.

[0046] It should be added that the monitor 110 is connected to the monitoring probe 112, and the monitoring probe 112 will continuously collect various data on the inner wall of the storage tank. When the data detected by the probe meets the preset corrosion determination criteria, it means that a corrosion point has been found. These determination criteria may be based on abnormal fluctuations in parameters such as conductivity, potential change, and resistance value.

[0047] The monitor 110 analyzes and processes the data transmitted by the monitoring probe 112 in real time. Once the corrosion situation is confirmed, the monitor 110 will quickly generate a corresponding control signal, which contains instruction information about the corrosion location and the start of the marking operation. The control module interprets the signal and identifies that the instruction is to perform an elongation operation to reach the marking position.

[0048] The specific implementation of this embodiment is as follows: Since the telescopic rod 140 is set as an electric rod, after receiving an accurate instruction, the driving device inside the telescopic rod 140 starts to work, thereby pushing the rod body of the telescopic rod 140 to gradually elongate. When the telescopic rod 140 elongates to a predetermined position, the marking pen 141 touches the corroded part of the inner wall of the storage tank. The marking pen 141 is filled with ink or marking pigment, and when it contacts the inner wall, it will leave an obvious mark at the corrosion position. After the marking is completed, the monitor 110 will send a new signal to the telescopic rod 140, instructing it to perform a contraction and reset operation. The driving device of the telescopic rod 140 runs in the reverse direction, causing the telescopic rod 140 to contract back to the initial position to prepare for the next possible marking task.

[0049] When pouring out the chemical liquid in the recovery cylinder 134 after the monitoring work is completed, find the sliding fit position between the clamping block 138 on the side of the recovery cylinder 134 and the clamping groove 139 on the side of the fixed block 113, disengage the clamping block 138 from the clamping groove 139, pull out the liquid guide pipe 135 from the recovery cylinder 134, hold the lid 137 of the recovery cylinder 134, and rotate the lid 137 in the opposite direction of the threaded connection to screw it off from the recovery cylinder 134. During the rotation, keep it stable to avoid sudden loosening of the lid 137 and splashing of the chemical liquid.

[0050] Then tilt the recovery cylinder 134 to slowly pour the chemical liquid in the recovery cylinder 134 into the prepared collection container. During the pouring process, control the pouring speed to avoid splashing due to too fast liquid flow. At the same time, try to align the opening of the recovery cylinder 134 with the center position of the collection container to ensure that the liquid flows in accurately. When most of the liquid in the recovery cylinder 134 is poured out, the recovery cylinder 134 can be gently shaken to make the liquid adhering to the cylinder wall also flow into the collection container. If there is still a small amount of liquid residue at the bottom of the recovery cylinder 134, a suitable tool can be used to suck it out and transfer it to the collection container.

[0051] After the pouring is completed, reinstall the cylinder cover 137 onto the recycling cylinder 134 and rotate it tightly in the direction of threaded connection to ensure that the cylinder cover 137 is well sealed, preventing the remaining chemical liquid from volatilizing or leaking. Slide and fix the processed recycling cylinder 134 back into cooperation with the card slot 139 on the side of the fixed block 113 through the clamping block 138. Then insert the liquid guide pipe 135 into the recycling cylinder 134 to ensure that the sealing rubber strip 136 is well sealed. Clean up the liquid that may splash during the operation to keep the working environment clean. At the same time, record relevant information such as the time and quantity of the poured chemical liquid for subsequent tracking and management.

[0052] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion monitoring device for a storage tank, comprising a monitor (110) for monitoring the corrosion of the storage tank, a driving wheel (111) is installed at the bottom of the monitor (110), and a monitoring probe (112) that fits against the inner wall of the storage tank is installed at the bottom of the monitor (110), characterized in that: A fixing block (113) is fixedly installed at the bottom of the monitor (110). An activity slot (114) is formed in the fixing block (113). The monitoring probe (112) is arranged in the activity slot (114). A first sleeve (115) is fixedly installed in the activity slot (114). A second sleeve (116) is fixedly sleeved outside the monitoring probe (112). A groove (118) is formed in the fixing block (113). An adsorption sponge (119) for adsorbing residual chemical liquid is arranged in the groove (118). A driving roller (120) is rotatably inserted into the groove (118). The driving roller (120) is located in the adsorption sponge (119). The detection signal output end of the monitoring probe (112) is electrically connected to the control module of the monitor (110) for real-time transmission of corrosion data.

2. The corrosion monitoring device for a storage tank according to claim 1, wherein: The inner diameter of the first sleeve (115) is larger than that of the second sleeve (116). The first sleeve (115) is movably hinged to the second sleeve (116). A fixing rod (121) is fixedly installed on the outer side of the second sleeve (116). An adjusting gear (122) is fixedly installed at the end of the fixing rod (121). The adjusting gear (122) is arranged as a sector gear. An adjusting rack (123) is fixedly installed in the activity slot (114). The adjusting gear (122) meshes with the adjusting rack (123).

3. The corrosion monitoring device for a storage tank according to claim 1, characterized in that: A damping ring (124) is fixedly installed in the first sleeve (115). The damping ring (124) is arranged as a rubber ring. A limiting slider (125) is fixedly installed on the outer side of the second sleeve (116). A limiting sliding slot (126) is formed in the first sleeve (115). The limiting slider (126) is slidably inserted into the limiting sliding slot (126). An adaptation spring (117) is connected between the first sleeve (115) and the second sleeve (116). One end of the adaptation spring (117) is fixedly sleeved on the outer side of the first sleeve (115), and the other end of the adaptation spring (117) is fixedly sleeved on the outer side of the second sleeve (116).

4. The corrosion monitoring device for a storage tank according to claim 1, characterized in that: There are two groups of driving wheels (111). The two groups of driving wheels (111) are symmetrically arranged on both sides of the fixing block (113). The driving wheels (111) are arranged as magnetic wheels and are magnetically attached to the inner wall of the storage tank.

5. The corrosion monitoring device for a storage tank according to claim 1, characterized in that: The driving rollers (120) are two parallel rollers rotatably connected to the groove (118) through bearings. A closed-loop control belt (127) is sleeved outside the driving rollers (120). The adsorption sponges (119) are evenly distributed on the outer surface of the control belt (127). A resisting block (128) is fixedly installed in the groove (118). The resisting block (128) is arranged as a rubber block for pressing the adsorption sponge (119) to be in close contact with the inner wall of the storage tank.

6. The corrosion monitoring device for a storage tank according to claim 5, wherein: A liquid extrusion plate (130) is installed in the groove (118). A driving rod (131) is installed on the side of the liquid extrusion plate (130). A through groove (132) is formed in the fixed block (113). The through groove (132) communicates with the groove (118) and the movable groove (114). The liquid extrusion plate (130) is linked with the second sleeve (116) through the driving rod (131). When the monitoring probe (112) deflects, the liquid extrusion plate (130) moves synchronously to squeeze the adsorption sponge (119).

7. The corrosion monitoring device for a storage tank according to claim 6, characterized in that: The liquid extrusion plate (130) is arranged as an inclined plate. The liquid extrusion plate (130) is located above the adsorption sponge (119). A liquid guide groove (133) is formed in the groove (118). A liquid guide pipe (135) is fixedly communicated with the bottom of the liquid guide groove (133). The liquid guide groove (133) communicates with the groove (118). The liquid guide groove (133) is located below the adsorption sponge (119). A recovery cylinder (134) for recovering residual chemical liquid is movably installed on the side of the fixed block (113).

8. The corrosion monitoring device for a storage tank according to claim 7, characterized in that: One end of the liquid guide pipe (135) away from the liquid guide groove (133) is inserted into the recovery cylinder (134). The liquid guide pipe (135) is arranged as a flexible pipe. An inlet check valve (142) is arranged in the liquid guide pipe (135). A sealing rubber strip (136) is installed at the insertion part of the liquid guide pipe (135) and the recovery cylinder (134). The sealing rubber strip (136) is arranged as a rubber strip.

9. The corrosion monitoring device for a storage tank according to claim 8, wherein: The recovery cylinder (134) is arranged as a corrosion-resistant plastic cylinder. A cylinder cover (137) is installed on the recovery cylinder (134) by threading. A clamping block (138) is installed on the side of the recovery cylinder (134). A clamping groove (139) corresponding to the clamping block (138) is formed in the side of the fixed block (113). The clamping block (138) is engaged with the clamping groove (139).

10. The corrosion monitoring device for a storage tank according to claim 1, characterized in that: An expansion rod (140) is installed at the bottom of the monitor (110). A marking pen (141) is installed at the bottom of the expansion rod (140). The expansion rod (140) is arranged as an electric rod. The marking pen (141) is located on the side of the monitoring probe (112).

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