CN119492040A - Corrosion online measurement system for electrode boiler tube chemical cleaning - Google Patents
Corrosion online measurement system for electrode boiler tube chemical cleaning Download PDFInfo
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- CN119492040A CN119492040A CN202510080338.0A CN202510080338A CN119492040A CN 119492040 A CN119492040 A CN 119492040A CN 202510080338 A CN202510080338 A CN 202510080338A CN 119492040 A CN119492040 A CN 119492040A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 56
- 238000005260 corrosion Methods 0.000 title claims abstract description 38
- 230000007797 corrosion Effects 0.000 title claims abstract description 37
- 239000000126 substance Substances 0.000 title claims abstract description 21
- 238000005259 measurement Methods 0.000 title claims abstract description 15
- 238000007790 scraping Methods 0.000 claims abstract description 133
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 239000000523 sample Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 64
- 239000002184 metal Substances 0.000 claims description 27
- 238000011010 flushing procedure Methods 0.000 claims description 19
- 241000270295 Serpentes Species 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000002775 capsule Substances 0.000 abstract 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 238000002791 soaking Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000003466 welding Methods 0.000 description 1
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Abstract
本发明公开了一种电极锅炉管化学清洗的腐蚀在线测量系统，包括转动安装于安装座上的上连接管，于所述上连接管与安装座之间装配有用于驱动上连接管旋转的驱动机构，于上连接管的下端沿竖向向下依次安装有蛇骨状导管、下连接管、弹性内壁冲刮机构、弹性封闭囊及腐蚀检测探头，所述弹性内壁冲刮机构和弹性封闭囊均与介质供应管系连通。本发明能够对炉管内壁的不同位置进行针对性清洁，提高了污垢的清除效果，同时准确地检测了出炉管内壁的腐蚀情况，通过检测的情况进行后续针对性的维修工作。本发明适用于电极锅炉的炉管检修的技术领域。
The present invention discloses an online corrosion measurement system for chemical cleaning of electrode boiler tubes, comprising an upper connecting tube rotatably mounted on a mounting seat, a driving mechanism for driving the upper connecting tube to rotate is installed between the upper connecting tube and the mounting seat, and a serpentine guide tube, a lower connecting tube, an elastic inner wall scraping mechanism, an elastic sealing capsule and a corrosion detection probe are installed in sequence vertically downward at the lower end of the upper connecting tube, and the elastic inner wall scraping mechanism and the elastic sealing capsule are both connected to a medium supply pipe system. The present invention can perform targeted cleaning on different positions of the inner wall of the furnace tube, improve the dirt removal effect, and accurately detect the corrosion condition of the inner wall of the furnace tube at the same time, and perform subsequent targeted maintenance work based on the detected condition. The present invention is applicable to the technical field of furnace tube maintenance of electrode boilers.
Description
Technical Field
The invention belongs to the technical field of electrode boiler overhaul, and particularly relates to an online corrosion measurement system for electrode boiler tube chemical cleaning.
Background
The electrode boiler is a type of heating and sterilizing water by heating and sterilizing the water by the electrode to evaporate the water to form hot steam. In the long-term use process, the scale is formed in the furnace tube of the electrode boiler due to impurities, alkaline substances and the like in the furnace water. When the furnace water is heated, the heat effect of the electrode boiler is reduced due to uneven heating of the furnace water, and the furnace tube is broken when serious, so that the furnace tube needs to be repaired or replaced in time. Therefore, chemical cleaning is required to be performed on the furnace tube periodically to remove the refractory dirt on the inner wall of the furnace tube so as to ensure the thermal effect of the furnace tube. However, furnace tubes are subject to corrosion during long-term use and chemical agents are also subject to more or less corrosion during chemical cleaning. Furthermore, a device for cleaning dirt in the furnace tube is needed, which is used for cleaning different positions of the inner wall of the furnace tube in a targeted manner, improving the cleaning effect of the dirt, detecting the corrosion condition of the inner wall of the furnace tube accurately, and carrying out subsequent targeted maintenance work through the detected condition.
Disclosure of Invention
The invention provides an online corrosion measurement system for chemical cleaning of an electrode boiler tube, which is used for cleaning different positions of the inner wall of the boiler tube in a targeted manner, improving the dirt cleaning effect, detecting the corrosion condition of the inner wall of the boiler tube accurately, and carrying out subsequent targeted maintenance work through the detected condition.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an electrode boiler tube chemical cleaning's corruption on-line measuring system, includes the last connecting pipe of rotating installation on the mount pad, in be equipped with the actuating mechanism who is used for driving the rotation of last connecting pipe between last connecting pipe and the mount pad, install snake bone form pipe, lower connecting pipe, elasticity inner wall in proper order along vertical downwards in the lower extreme of last connecting pipe and dash and scrape mechanism, elasticity seal bag and corrosion detection probe, elasticity inner wall dash and scrape mechanism and elasticity seal bag and all communicate with medium supply piping.
Further, the driving mechanism comprises an assembly shell arranged on the mounting seat, a driving motor is arranged in the assembly shell, a first belt pulley is coaxially arranged on an output shaft of the driving motor, a second belt pulley is coaxially arranged outside the upper connecting pipe, and the first belt pulley and the second belt pulley are in transmission connection through a transmission belt.
Further, the medium supply pipe system comprises a liquid guide metal hose which is assembled in the snake-bone-shaped catheter and extends along with the shape of the liquid guide metal hose, the lower end of the liquid guide metal hose is communicated with the elastic inner wall scraping mechanism, the lower end of the elastic inner wall scraping mechanism is communicated with the elastic sealing bag through a telescopic pipe which is rotationally connected with the elastic inner wall scraping mechanism, the upper end of the liquid guide metal hose extends out of the upper connecting pipe, the upper part of the liquid guide metal hose is rotationally connected with a transfer sleeve, a plurality of conducting holes are formed in the liquid guide metal hose and positioned in the transfer sleeve, and a transfer pipe is constructed on the transfer sleeve.
Further, the corrosion detection probe comprises a probe body arranged below the elastic sealing bag, the upper end of the probe body is connected with a wire, the wire sequentially penetrates through the elastic sealing bag, the telescopic pipe, the elastic inner wall scraping mechanism, the lower connecting pipe and the liquid guiding metal hose, and an inserting joint is arranged at the upper end of the wire.
Further, the telescopic pipe comprises a plurality of pipe bodies which are sequentially spliced along the vertical direction, the pipe body positioned at the uppermost part is rotationally connected with the lower end of the elastic inner wall scraping mechanism, and the elastic sealing bag is coaxially assembled outside the pipe body positioned at the lowermost part and is communicated with the pipe body.
Further, the elastic inner wall punching and scraping mechanism comprises a plurality of outwards-stretched punching and scraping units which are vertically and sequentially movably connected, an assembly cavity is formed in each outwards-stretched punching and scraping unit, a vertical hard spring is arranged in the assembly cavity, two ends of the vertical hard spring are respectively positioned at the uppermost end of the outwards-stretched punching and scraping unit and the lowermost end of the outwards-stretched punching and scraping unit, and a medium supply pipe system is communicated with each assembly cavity.
Further, the flared flushing and scraping unit comprises a cylindrical assembly body with a movable cavity, a movable pipe with a regular polygon cross section of an outer peripheral wall is coaxially connected to the upper end of the cylindrical assembly body, a flange extending outwards along the radial direction of the movable pipe is formed at the upper end of the movable pipe, the movable pipes in adjacent cylindrical assembly bodies are movably inserted into the movable cavities of the corresponding cylindrical assembly bodies, the assembly cavities are formed between the movable cavities and the inner cavities of the movable pipes, a plurality of flushing and scraping assemblies are uniformly and elastically connected in the circumferential direction of the cylindrical assembly bodies, and each flushing and scraping assembly extends outwards along the radial direction of the cylindrical assembly body and is communicated with the assembly cavity.
The assembly comprises a cylindrical assembly body, a plurality of assembly arms, a scraping assembly and a first connecting spring, wherein the circumference of the cylindrical assembly body is uniformly provided with the plurality of assembly arms along the circumference of the cylindrical assembly body, each assembly arm extends outwards in the radial direction of the cylindrical assembly body, one end of each scraping assembly comprises a connecting arm which extends into the cylindrical assembly body through the corresponding assembly arm, the other end of each connecting arm is detachably connected with a scraping piece, the mutual inserting parts of the connecting arms and the assembly arms are connected through the first connecting spring, and the first connecting spring extends in the radial direction of the cylindrical assembly body.
Further, the flushing part comprises an integrally formed connecting part and a circumferential scraping part, the upper end and the lower end of the flushing part are respectively provided with an axial scraping part, at least one liquid guide channel is arranged in the connecting arm, the liquid guide channel extends along the radial direction of the cylindrical assembly body and is communicated with the outside through the flushing part, the liquid guide channel is communicated with the assembly cavity, and a first spray head or a second spray head is arranged on the connecting part and at the end part of the liquid guide channel.
Furthermore, a conical mounting groove is formed in the connecting portion and located at the end portion of the liquid guide channel, the conical mounting groove is communicated with the liquid guide channel through an assembly groove, and the second spray head is assembled in the conical mounting groove and connected with the connecting portion through a second connecting spring arranged in the assembly groove.
Compared with the prior art, the corrosion detection probe has the advantages that the corrosion detection probe detects corrosion conditions at different positions of the inner wall of the furnace tube by adjusting different positions of the snake bone-shaped guide tube in the furnace tube. The method comprises the steps of cleaning a certain depth area of the inner wall of a furnace tube, lowering the lower end of a snake-bone-shaped conduit to the lower part of a target area when cleaning the inner wall of the furnace tube, then, continuously supplying a gas with preset pressure into an elastic sealing bag through a medium supply pipe system, gradually expanding and tightly expanding the elastic sealing bag on the inner wall of the furnace tube to seal the lower end of the target area of the furnace tube, simultaneously, elastically expanding an elastic inner wall scraping mechanism on the inner wall of the furnace tube, wherein the pressure required by the elastic inner wall scraping mechanism to expand the furnace tube is lower than that of the elastic sealing bag before the elastic sealing bag is expanded on the inner wall of the furnace tube, positioning and limiting the elastic inner wall scraping mechanism, relatively displacing the elastic sealing bag and the inner wall of the furnace tube, then, directly adding a preset amount of cleaning liquid into the furnace tube to enable the cleaning liquid in the furnace tube to submerge the target area, continuously expanding the gas discharged from the elastic inner wall scraping mechanism into the cleaning liquid in the soaking process to generate bubbles, in the rising process of the bubbles, and generating energy, acting on dirt, accelerating the soaking efficiency, expanding the elastic inner wall scraping mechanism on the inner wall, namely, expanding the elastic inner wall of the furnace tube, namely, releasing the dirt from the inner wall of the furnace tube, gradually contacting the elastic sealing bag with the inner wall of the furnace tube, gradually releasing the cleaning liquid from the inner wall of the sealing bag, and removing the cleaning liquid in the sealing bag, gradually contacting the sealing with the inner wall of the sealing bag, and removing the cleaning liquid in the sealing bag, and removing the inner wall, and cleaning liquid in a certain time is gradually, and the sealing bag, and the sealing medium is gradually after the inner wall is filled in the sealing the inner tube and is filled with the cleaning liquid, and the cleaning liquid or a part of clear water is jetted onto the inner wall of the furnace tube by the elastic inner wall scraping mechanism, and then the driving mechanism is controlled to act so as to lead the cleaning liquid or the clear water to pass through the upper connecting pipe, The snake bone-shaped conduit drives the elastic inner wall scraping mechanism to rotate forward for 1-3 circles, Reversing the corresponding turns and repeating for a plurality of times; the invention can drive the snake bone-shaped conduit to drive the elastic inner wall scraping mechanism to move along the extending direction of the furnace tube in the process of cleaning the inner wall of the furnace tube, so that the elastic inner wall scraping mechanism can extend and retract along the axis of the furnace tube while rotating along the axis of the furnace tube, the action of circumferential scraping and axial straight scraping on the inner wall of the furnace tube is realized, the dirt on the tube wall is ensured to be fully removed, and part of cleaning liquid or clear water is sprayed out by the elastic inner wall scraping mechanism to wash the cleaned tube wall part. In order to prolong the service life of the peripheral wall of the elastic sealing bag, a wear-resistant layer is arranged on the peripheral wall of the elastic sealing bag. In summary, the invention can clean different positions of the inner wall of the furnace tube in a targeted manner, improves the dirt removing effect, accurately detects the corrosion condition of the inner wall of the furnace tube, and performs subsequent targeted maintenance work according to the detected condition.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view showing the structure of the mounting base, the driving mechanism, the lower connecting pipe and the connection of the local medium supply pipe system according to the embodiment of the present invention;
FIG. 3 is a cross-sectional view of the structure shown in FIG. 2;
FIG. 4 is a cross-sectional view of the connection of the elastic inner wall scraping mechanism, the elastic sealing bag and the corrosion detection probe according to the embodiment of the invention;
FIG. 5 is a schematic diagram of the structure of a flared scraping unit in the elastic inner wall scraping mechanism according to the embodiment of the present invention;
FIG. 6 is a top view of the structure of a flared scraping unit in the elastic inner wall scraping mechanism according to the embodiment of the present invention;
FIG. 7 is a partial cross-sectional view of a flared scraping unit in an elastic inner wall scraping mechanism according to an embodiment of the present invention;
Fig. 8 is a schematic structural diagram of the external-expansion type scraping element in the scraping unit after the scraping element is separated from the connecting arm;
fig. 9 is a cross-sectional view of the structure of the assembly arm, the connection arm, and the connection of the scraping element with the second nozzle in the flared scraping unit according to the embodiment of the invention.
The labeling components are 100-snake bone-shaped guide pipe, 200-upper connecting pipe, 201-tubular body, 202-first pipe cavity, 203-tubular joint, 300-mounting seat, 301-disc-shaped seat body, 302-handle bar, 400-elastic inner wall scraping mechanism, 401-tubular assembly body, 402-movable pipe, 403-movable cavity, 404-assembly cavity, 405-assembly arm, 406-connecting arm, 407-liquid guide channel, 408-first connecting spring, 409-connecting part, 410-circumferential scraping part, 411-limiting protrusion, 412-plug pipe, 413-inserting hole, 414-fixed hole, 415-first nozzle, 416-assembly groove, 417-second nozzle, 418-second connecting spring, 500-elastic sealing bag, 600-corrosion detection probe, 601-probe body, 602-wire, 603-inserting joint, 700-medium supply pipe system, 701-liquid guide metal hose, 702-second pipe cavity, 703-connecting sleeve, 704-adapter pipe, driving mechanism, 801-assembly shell, 802-motor pulley, 802-driving pulley, first pulley, 415-first nozzle, 416-assembly groove, 417-second nozzle, 418-second nozzle, 500-second nozzle, hard belt driving pulley, and 900-hard belt.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented for purposes of illustration and explanation only and are not intended to limit the present invention.
The invention discloses an online corrosion measurement system for chemical cleaning of an electrode boiler tube, which is shown in fig. 1-9 and comprises an upper connecting tube 200, a snake bone-shaped conduit 100, a lower connecting tube 900, an elastic inner wall scraping mechanism 400, an elastic sealing bag 500, a corrosion detection probe 600, a driving mechanism 800 and a medium supply tube system 700. Wherein the upper connection pipe 200 is rotatably installed on the installation base 300, and a driving mechanism 800 is assembled between the upper connection pipe 200 and the installation base 300, and the driving mechanism 800 is used for driving the upper connection pipe 200 to rotate. The upper connecting pipe 200, the snake bone-shaped catheter 100, the lower connecting pipe 900, the elastic inner wall scraping mechanism 400, the elastic sealing bag 500 and the corrosion detection probe 600 are sequentially connected downwards along the vertical direction, and the elastic inner wall scraping mechanism 400 and the elastic sealing bag 500 are communicated with the medium supply pipe system 700. The invention has the working principle and advantages that the corrosion detection probe 600 detects the corrosion condition of different positions of the inner wall of the furnace tube by adjusting different positions of the snake bone-shaped conduit 100 in the furnace tube. When cleaning a certain depth area of the inner wall of the furnace tube, the lower end of the snake bone-shaped catheter 100 is lowered below a target area; then, the elastic sealing bag 500 is gradually inflated and tightly expanded on the inner wall of the furnace tube by continuously supplying the gas with a preset pressure into the elastic sealing bag 500 through the medium supply pipe system 700, the lower end of the target area of the furnace tube is sealed, meanwhile, the elastic inner wall scraping mechanism 400 is also elastically expanded on the inner wall of the furnace tube, the elastic inner wall scraping mechanism 400 is firstly expanded on the inner wall of the furnace tube before the elastic sealing bag 500, namely the pressure required by the inflation of the elastic sealing bag 500 is lower than that of the elastic sealing bag 500, under the positioning and limiting of the elastic inner wall scraping mechanism 400, the elastic sealing bag 500 and the inner wall of the furnace tube are extremely difficult to relatively displace, then, a preset amount of cleaning liquid is directly added into the furnace tube, so that the cleaning liquid in the furnace tube can submerge the target area, in the soaking process, the gas continuously discharged from the elastic inner wall scraping mechanism 400 enters into the cleaning liquid in the furnace tube, bubbles are generated, in the process of rising of the bubbles, the bubbles are broken and generate energy, the energy acts on the inner wall of the furnace tube, the dirt is further, the dirt is separated from the efficiency is accelerated, after the soaking, most of dirt on the inner wall is separated from the furnace tube, the inner wall is separated from the inner wall, the chemical dirt is separated from the inner wall, the inner wall is difficult to relatively displace under the positioning and limited by the elastic inner wall of the elastic sealing bag, the preset pressure, the cleaning liquid is gradually discharged into the inner wall of the furnace tube, or the furnace tube by the medium, the pressure is gradually supplied into the sealing bag 500, or the inner wall, which is gradually contacted with the inner wall 500, when the inner wall is gradually and is gradually contacted with the inner wall, or is slightly high pressure, and is filled with the cleaning liquid, and is filled, and is completely, or is filled, and is completely, and is filled with the cleaning medium, and is filled, and has high, the elastic inner wall scraping mechanism 400 is propped against the inner wall of the furnace tube before the elastic sealing bag 500, and a part of cleaning liquid or clear water is jetted onto the inner wall of the furnace tube by the elastic inner wall scraping mechanism 400, and then the driving mechanism 800 is controlled to act, so that the cleaning liquid or clear water passes through the upper connecting pipe 200, the snake bone-shaped catheter 100 drives the elastic inner wall scraping mechanism 400 to rotate forward for 1-3 circles, Reversing the corresponding turns and repeating for a plurality of times; meanwhile, on the premise that cleaning liquid or clear water is higher than a preset pressure, the cleaning liquid or clear water is led into the medium supply pipe system 700 in a pulse fluctuation mode, the elastic inner wall scraping mechanism 400 is driven to vertically stretch and retract, the elastic inner wall scraping mechanism 400 stretches and contracts along the axis of the furnace tube while rotating along the axis of the furnace tube, circumferential scraping and axial straight scraping actions on the inner wall of the furnace tube are achieved, dirt on the pipe wall is guaranteed to be fully removed, part of cleaning liquid or clear water is sprayed out of the elastic inner wall scraping mechanism 400 in a synchronous mode, the cleaned pipe wall part is washed, and in the process of cleaning the inner wall of the furnace tube, the snake bone-shaped guide pipe 100 is driven to drive the elastic inner wall scraping mechanism 400 to move along the extending direction of the furnace tube, so that the elastic sealing bag 500 can further clean the pipe wall after cleaning is completed. In order to improve the life of the outer peripheral wall of the elastic sealing bladder 500, a wear-resistant layer is provided on the outer peripheral wall of the elastic sealing bladder 500. In summary, the invention can clean different positions of the inner wall of the furnace tube in a targeted manner, improves the dirt removing effect, accurately detects the corrosion condition of the inner wall of the furnace tube, and performs subsequent targeted maintenance work according to the detected condition.
As a preferred embodiment of the present invention, as shown in fig. 2 to 4, the mounting base 300 includes a disk-shaped base body 301, and a handle bar 302 is constructed on the disk-shaped base body 301 to facilitate the handling by an operator. The upper connecting tube 200 of the present embodiment includes a tubular body 201, the inner cavity of the tubular body 201 is a first lumen 202, and a tubular joint 203 coinciding with the axis of the tubular body 201 is configured at the upper end of the tubular body 201. The driving mechanism 800 of the present embodiment comprises an assembly housing 801, a driving motor 802, a first pulley 803, a second pulley 804 and a transmission belt 805, wherein the assembly housing 801 is detachably mounted on the mounting base 300, the driving motor 802 is mounted in the assembly housing 801, the first pulley 803 is coaxially mounted on the output shaft of the driving motor 802, the second pulley 804 is coaxially mounted outside the tubular joint 203 of the upper connecting pipe 200, and the first pulley 803 and the second pulley 804 are in transmission connection through the transmission belt 805, by controlling the driving motor 802 to operate, the driving motor is driven by the first pulley 803, the second belt pulley 804 and the driving belt 805 drive the upper connecting tube 200 to rotate, and the upper connecting tube 200 drives the elastic inner wall scraping mechanism 400 to rotate through the snake bone-shaped conduit 100 in the rotating process, so as to finish the operation of scraping the tube wall of the furnace tube. the medium supply pipe system 700 of the present embodiment includes a liquid guiding metal hose 701, an adapter sleeve 703 and an adapter pipe 704, wherein the liquid guiding metal hose 701 is assembled in the snake-shaped catheter 100, the liquid guiding metal hose 701 extends along with the extending form of the snake-shaped catheter 100, the inner cavity of the liquid guiding metal hose 701 is a second pipe cavity 702, and the lower end of the liquid guiding metal hose 701 is communicated with the elastic inner wall scraping mechanism 400. The lower end of the elastic inner wall scraping mechanism 400 is rotatably connected with a telescopic tube 1100, the telescopic tube 1100 is communicated with the elastic sealing bag 500, and the telescopic tube 1100 communicates the elastic inner wall scraping mechanism 400 with the elastic sealing bag 500. The upper end of the liquid-guiding metal hose 701 extends out of the upper end of the tubular joint 203 through the first lumen 202 of the upper connecting pipe 200, the upper part of the liquid-guiding metal hose 701 is a hard pipe, the adapter sleeve 703 is rotationally sleeved outside the hard pipe part of the liquid-guiding metal hose 701, a plurality of through holes are formed in the liquid-guiding metal hose 701 and in the adapter sleeve 703, the adapter pipe 704 is constructed on the adapter sleeve 703, and the adapter pipe 704 is connected with the assembly shell 801 through a fixed seat. The corrosion detection probe 600 of this embodiment includes a probe body 601, the probe body 601 is disposed below the elastic sealing bag 500, the upper end of the probe body 601 is connected with a wire 602, the wire 602 sequentially passes through the elastic sealing bag 500, the telescopic tube 1100, the elastic inner wall scraping mechanism 400, the lower connecting tube 900 and the second lumen 702 of the liquid guiding metal hose 701, and an adaptor 603 is mounted at the upper end of the wire 602. The snake bone-shaped catheter 100 of the embodiment can extend into straight furnace tubes, and also can extend into bent furnace tubes, so that the purposes of detecting and cleaning furnace tubes of different tube types are achieved. The telescopic tube 1100 of this embodiment includes a plurality of tubes inserted in sequence along the vertical direction, the tube located at the uppermost is rotationally connected with the lower end of the elastic inner wall scraping mechanism 400, the elastic sealing bag 500 is coaxially assembled outside the tube located at the lowermost, and the elastic sealing bag 500 is communicated with the inner cavity of the tube. The medium (pressure gas, cleaning liquid or clear water) of the embodiment enters the liquid guiding metal hose 701 through the adapter sleeve 703 from the adapter tube 704, and then enters the elastic inner wall scraping mechanism 400 and the elastic sealing bag 500 through the liquid guiding metal hose 701 respectively, so as to expand the elastic sealing bag 500 and drive the elastic inner wall scraping mechanism 400 to stretch outwards and contact the inner wall of the furnace tube. In addition, since the telescopic tube 1100 is used to connect the elastic inner wall scraping mechanism 400 and the elastic sealing bag 500, the elastic sealing bag 500 can keep a non-rotating state in the process that the elastic inner wall scraping mechanism 400 is driven to rotate, and the telescopic tube 1100 correspondingly stretches when the elastic inner wall scraping mechanism 400 stretches along the axial direction of the furnace tube.
As a preferred embodiment of the present invention, as shown in fig. 4 to 7, the elastic inner wall scraping mechanism 400 includes a plurality of flared scraping units movably connected together in sequence in a vertical direction, an assembly chamber 404 is formed in each flared scraping unit, a vertical hard spring 1000 passes through the assembly chamber 404 of each flared scraping unit, and both ends of the vertical hard spring 1000 are respectively connected to the uppermost flared scraping unit and the lowermost flared scraping unit, and the lower end of the liquid-guiding metal hose 701 in the medium supply piping 700 is communicated with the assembly chamber 404 of the uppermost flared scraping unit. When the pressure of the medium entering the elastic inner wall scraping mechanism 400 is increased, the medium drives the outward-stretching type scraping units at the upper end and the lower end to be away from each other, the outward-stretching type scraping units between the two are gradually pulled away from each other in the process of keeping away from the two, the purpose that the outward-stretching type scraping units move along the axial direction of the furnace tube is achieved, the vertical hard spring 1000 is gradually stretched to store energy in the secondary process, when the pressure of the medium is reduced, the outward-stretching type scraping units at the two ends are mutually close under the action of the vertical hard spring 1000, and in the process of mutually closing the two, the distance between the outward-stretching type scraping units is reduced. The vertical hard spring 1000 of this embodiment may also be connected to each of the flared scraping units, that is, one or more points of the portion of the vertical hard spring 1000 located in the corresponding assembly cavity 404 are fixed to the corresponding flared scraping unit by welding, so that when the pressure of the medium changes, the distance between the flared scraping units changes synchronously and uniformly, and the effect of elastically driving all the flared scraping units is better than that of the case that the vertical hard spring 1000 only connects two flared scraping units at the end.
As a preferred embodiment of the present invention, as shown in fig. 5-7, the flare-type scraping unit includes a cylindrical fitting body 401 and a plurality of scraping assemblies. The tubular assembly 401 has a movable cavity 403, a movable tube 402 is coaxially connected to an upper end of the tubular assembly 401, a cross section of an outer peripheral wall of the movable tube 402 is a regular polygon, a flange is configured at an upper end of the movable tube 402, the flange extends outwards along a radial direction of the movable tube 402, the movable tube 402 in two adjacent tubular assemblies 401 is movably inserted into the movable cavity 403 of the corresponding tubular assembly 401, and the movable cavity 403 and an inner cavity of the movable tube 402 together form the assembly cavity 404. The plurality of scraping assemblies are uniformly and elastically connected to the cylindrical assembly 401 along the circumferential direction of the cylindrical assembly 401, each scraping assembly extends outwards along the radial direction of the cylindrical assembly 401, and each scraping assembly is respectively communicated with the assembly cavity 404 and the inner cavity of the furnace tube. Specifically, the present embodiment is configured with a plurality of fitting arms 405 on the circumferential surface of the cylindrical fitting body 401, the fitting arms 405 being uniformly arranged in the circumferential direction of the cylindrical fitting body 401, each fitting arm 405 extending outward in the radial direction of the cylindrical fitting body 401. The scraping assembly comprises a connecting arm 406, a first connecting spring 408 and a scraping member, wherein one end of the connecting arm 406 movably stretches into the cylindrical assembly 401 through a corresponding assembly arm 405, and the scraping member is detachably connected to the other end of the connecting arm 406. The first connecting spring 408 is provided at a portion where the connecting arm 406 and the fitting arm 405 are inserted into each other, and both ends of the first connecting spring 408 are connected to the connecting arm 406 and the fitting arm 405, respectively, and the first connecting spring 408 extends in the radial direction of the cylindrical fitting body 401. When the number of the connecting arms 406 is two in this embodiment, one ends of the two connecting arms 406 extending into the assembly arm 405 are connected together, so that the two connecting arms 406 form a laid-down U-shaped structure, and one end of the first connecting spring 408 is connected to the connection portion of the two.
As a preferred embodiment of the present invention, as shown in fig. 8, the scraping member includes a connecting portion 409 and a circumferential scraping portion 410 integrally formed, and axial scraping portions are formed at upper and lower ends of the scraping member, respectively. A plug tube 412 and a limiting protrusion 411 are constructed on one side surface of the connection portion 409 near the connection arm 406, a plug hole 413 is constructed at an end portion of the connection arm 406, the plug tube 412 is inserted in the plug hole 413, a fixing hole 414 is opened on the side surface of the connection arm 406, a fastening bolt is screwed into the fixing hole 414, and an end portion of the fastening bolt is locked on the plug tube 412, when the number of the connection arms 406 is two, the limiting protrusion 411 is disposed at a position between the end portions of the two connection arms 406, and when the first connection spring 408 drives the connection arm 406 to return to an initial position, an end portion of the limiting protrusion 411 abuts on an end surface of the assembly arm 405. The embodiment can adapt to the detection and dirt cleaning operation of furnace tubes with different tube diameters, and the length of the connecting arm 406 extending out of the assembling arm 405 is changed by adjusting the pressure of the medium. And the connecting arm 406 rotates and scrapes the inner wall of the furnace tube along with the circumferential scraping portion 410 of the scraping member in the process of rotating along with the cylindrical assembly 401, and the axial scraping portion of the scraping member axially scrapes the inner wall of the furnace tube when the cylindrical assembly 401 moves along the axial direction of the furnace tube. In this embodiment, at least one liquid guide channel 407 is formed in the connecting arm 406, the liquid guide channel 407 extends along the radial direction of the cylindrical assembly 401, the liquid guide channel 407 is communicated with the outside through an impact scraping member, the liquid guide channel 407 is communicated with the assembly cavity 404, a first nozzle 415 or a second nozzle 417 is mounted on the connecting portion 409 and at the end of the liquid guide channel 407, and when both the circumferential scraping portion 410 and the axial scraping portion contact the inner wall of the furnace tube, the connecting portion 409 has a distance from the inner wall of the furnace tube, so that the first nozzle 415 or the second nozzle 417 jet the medium.
As a preferred embodiment of the present invention, as shown in fig. 8, the first spray head 415 is a nozzle, which is not described herein. As shown in fig. 9, in the present embodiment, a tapered mounting groove is formed in the connection portion 409 at the end of the liquid guide passage 407, the tapered mounting groove communicates with the liquid guide passage 407 through the mounting groove 416, and a second head 417 is mounted in the tapered mounting groove, the second head 417 is connected to the connection portion 409 through a second connection spring 418 mounted in the mounting groove 416. Through the drive of medium for the medium drives the outward motion of second shower nozzle 417, and at this moment second coupling spring 418 is in the state of being stretched, simultaneously, forms the fluidic channel of toper between second shower nozzle 417 and the toper mounting groove, and the medium is sprayed on the boiler tube inner wall by this fluidic channel, realizes the purpose of supplementary clearance dirt.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The corrosion on-line measuring system for the chemical cleaning of the electrode boiler tube is characterized by comprising an upper connecting tube rotatably arranged on a mounting seat, a driving mechanism for driving the upper connecting tube to rotate is arranged between the upper connecting tube and the mounting seat, a snake bone-shaped guide tube, a lower connecting tube, an elastic inner wall scraping mechanism, an elastic sealing bag and a corrosion detecting probe are sequentially arranged at the lower end of the upper connecting tube along the vertical direction, and the elastic inner wall scraping mechanism and the elastic sealing bag are both communicated with a medium supply pipeline.
2. The system for online measurement of corrosion of chemical cleaning of an electrode boiler tube according to claim 1, wherein the driving mechanism comprises an assembly shell arranged on the mounting seat, a driving motor is arranged in the assembly shell, a first belt pulley is coaxially arranged on an output shaft of the driving motor, a second belt pulley is coaxially arranged outside the upper connecting tube, and the first belt pulley and the second belt pulley are in transmission connection through a transmission belt.
3. The chemical cleaning corrosion online measurement system for an electrode boiler tube according to claim 1, wherein the medium supply pipe system comprises a liquid guide metal hose which is assembled in a snake-shaped conduit and extends along with the shape of the snake-shaped conduit, the lower end of the liquid guide metal hose is communicated with an elastic inner wall scraping mechanism, the lower end of the elastic inner wall scraping mechanism is communicated with an elastic sealing bag through a telescopic pipe which is rotationally connected with the elastic inner wall scraping mechanism, the upper end of the liquid guide metal hose extends out of an upper connecting pipe, an adapter sleeve is rotationally connected to the upper part of the liquid guide metal hose, a plurality of through holes are formed in the liquid guide metal hose and positioned in the adapter sleeve, and an adapter pipe is constructed on the adapter sleeve.
4. The corrosion online measurement system for chemical cleaning of an electrode boiler tube according to claim 3, wherein the corrosion detection probe comprises a probe body arranged below the elastic sealing bag, the upper end of the probe body is connected with a wire, the wire sequentially passes through the elastic sealing bag, the telescopic tube, the elastic inner wall scraping mechanism, the lower connecting tube and the liquid guiding metal hose, and an inserting joint is arranged at the upper end of the wire.
5. The online corrosion measurement system for chemical cleaning of electrode boiler tubes according to claim 3, wherein the telescopic tube comprises a plurality of tube bodies which are sequentially spliced vertically, the uppermost tube body is rotatably connected with the lower end of the elastic inner wall scraping mechanism, and the elastic sealing bag is coaxially assembled outside the lowermost tube body and is communicated with the lowermost tube body.
6. The chemical cleaning corrosion online measurement system for an electrode boiler tube according to claim 1, wherein the elastic inner wall flushing and scraping mechanism comprises a plurality of outwards-stretched flushing and scraping units which are sequentially and movably connected in a vertical direction, an assembly cavity is formed in each outwards-stretched flushing and scraping unit, a vertical hard spring is arranged in the assembly cavity, two ends of the vertical hard spring are respectively connected with the outwards-stretched flushing and scraping unit at the uppermost end and the outwards-stretched flushing and scraping unit at the lowermost end, and a medium supply pipe system is communicated with each assembly cavity.
7. The online corrosion measurement system for chemical cleaning of electrode boiler tubes according to claim 6, wherein the flared flushing and scraping unit comprises a cylindrical assembly body with a movable cavity, a movable tube with a regular polygon cross section is coaxially connected to the upper end of the cylindrical assembly body, a flange extending outwards along the radial direction of the movable tube is formed at the upper end of the movable tube, the movable tube in the adjacent cylindrical assembly body is movably inserted into the movable cavity of the corresponding cylindrical assembly body, the assembly cavity is formed between the movable cavity and the inner cavity of the movable tube, a plurality of flushing and scraping assemblies are uniformly and elastically connected in the circumferential direction of the cylindrical assembly body, and each flushing and scraping assembly extends outwards along the radial direction of the cylindrical assembly body and is communicated with the assembly cavity.
8. The system for online measurement of corrosion in chemical cleaning of an electrode boiler tube according to claim 7, wherein a plurality of assembling arms are uniformly formed on the circumferential surface of the cylindrical assembling body along the circumferential direction of the cylindrical assembling body, each assembling arm extends outwards along the radial direction of the cylindrical assembling body, the flushing and scraping assembly comprises a connecting arm, one end of the connecting arm extends into the cylindrical assembling body through the corresponding assembling arm, a flushing and scraping piece is detachably connected to the other end of the connecting arm, the mutually inserted parts of the connecting arm and the assembling arm are connected through a first connecting spring, and the first connecting spring extends along the radial direction of the cylindrical assembling body.
9. The system for online corrosion measurement for chemical cleaning of an electrode boiler tube according to claim 8, wherein the flushing and scraping member comprises a connecting part and a circumferential scraping part which are integrally formed, axial scraping parts are respectively formed at the upper end and the lower end of the flushing and scraping member, at least one liquid guide channel is formed in the connecting arm, the liquid guide channel extends along the radial direction of the cylindrical assembly body and is communicated with the outside through the flushing and scraping member, the liquid guide channel is communicated with the assembly cavity, and a first spray head or a second spray head is arranged on the connecting part and at the end part of the liquid guide channel.
10. The system for online measurement of corrosion of chemical cleaning of an electrode boiler tube according to claim 9, wherein a conical mounting groove is formed in the connecting portion and located at the end portion of the liquid guide channel, the conical mounting groove is communicated with the liquid guide channel through an assembling groove, and the second spray head is assembled in the conical mounting groove and connected with the connecting portion through a second connecting spring arranged in the assembling groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510080338.0A CN119492040A (en) | 2025-01-20 | 2025-01-20 | Corrosion online measurement system for electrode boiler tube chemical cleaning |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510080338.0A CN119492040A (en) | 2025-01-20 | 2025-01-20 | Corrosion online measurement system for electrode boiler tube chemical cleaning |
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| CN119492040A true CN119492040A (en) | 2025-02-21 |
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| CN202510080338.0A Pending CN119492040A (en) | 2025-01-20 | 2025-01-20 | Corrosion online measurement system for electrode boiler tube chemical cleaning |
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| US5857476A (en) * | 1992-09-03 | 1999-01-12 | Bee; Robert | System for cleaning threaded and unthreaded portions of tubular members |
| CN109647818A (en) * | 2018-12-20 | 2019-04-19 | 浙江晶科能源有限公司 | A kind of boiler tube cleaning device |
| WO2022099984A1 (en) * | 2020-11-13 | 2022-05-19 | 长缆电工科技股份有限公司 | Device for detecting and cleaning inner wall of pipeline and pipeline cleaning method |
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