Corrosion inhibitor adding device

Abstract

The invention provides a corrosion inhibitor adding device. The corrosion inhibitor adding device comprises a liquid supply mechanism and a spraying mechanism. The liquid supply mechanism comprises a liquid supply assembly, an output pipe and a connecting assembly, one end of the output pipe is connected with the liquid supply assembly, the liquid supply assembly provides a corrosion inhibitor solution, and the other end of the output pipe is connected into the pipeline body through the connecting assembly; the spraying mechanism comprises N telescopic adding mechanisms, each telescopic adding mechanism is provided with an adding nozzle and a telescopic mechanism driving the adding nozzle to stretch out and draw back relative to the inner wall of the pipeline body, and the adding nozzles communicate with the output pipeline. The spraying effect of the corrosion inhibitor can be improved, the utilization rate is increased, during spraying, the situation that impurities and oil stains are attached to the spraying head can be effectively reduced, the blocking situation is reduced, the spraying head can be far away from the inner wall of the pipeline body after spraying is completed, impurity particles and oil stains are further prevented from being deposited on the spraying head, the maintenance period is effectively shortened, and the maintenance cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil transportation, in particular to a kind of corrosion inhibitor adding device. BACKGROUND

[0002] When oil pipeline transports medium such as crude oil and natural gas, it is easy to be affected by water, hydrogen sulfide, carbon dioxide, salt and other substances in the medium, resulting in electrochemical corrosion, chemical corrosion or microbial corrosion on the inner wall of the pipeline. Corrosion inhibitor is a functional chemical agent that inhibits corrosion, scaling and other problems on the inner wall of the pipeline by slowly releasing active ingredients. Its core function is to extend the service life of the pipeline and improve the transportation efficiency under the premise of not interrupting the operation of the pipeline. There are many ways to arrange oil pipelines, some of which are installed on the ground and are commonly used for oil field pipeline transportation. In oil transportation, corrosion inhibitor needs to be added inside the oil pipeline, so a corrosion inhibitor adding device is needed.

[0003] The existing technology adopts welding method to install the corrosion inhibitor adding nozzle mechanism in advance or later into the inside of the oil pipeline, and the corrosion inhibitor is added by the external corrosion inhibitor storage and release device. This kind of adding device is divided into two parts, but the above-mentioned common corrosion inhibitor adding device still has some deficiencies.

[0004] The traditional corrosion inhibitor nozzle is generally fixed and close to the inner wall of the oil pipeline. The oil pipeline inner wall, especially the bottom, is easy to deposit oil stains and impurity particles, which can easily cause the corrosion inhibitor nozzle to be blocked, and high frequency cleaning is required, which is time-consuming and labor-intensive and has high maintenance cost. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the problems of fixed corrosion inhibitor nozzle, close distance to the inner wall of the oil pipeline, and high frequency cleaning caused by oil stains and impurity particles deposited on the inner wall and bottom of the oil pipeline. The present application provides a corrosion inhibitor adding device.

[0006] The technical solution adopted by the present application to solve the technical problem is: a corrosion inhibitor adding device is arranged on the pipeline body, which comprises a liquid supply mechanism and a spraying mechanism. The liquid supply mechanism comprises a liquid supply assembly, an output pipe and a connecting assembly. One end of the output pipe is connected with the liquid supply assembly and provides corrosion inhibitor solution from the liquid supply assembly, and the other end is connected to the pipeline body through the connecting assembly. The spraying mechanism comprises N groups of telescopic adding mechanisms. Each telescopic adding mechanism has an adding nozzle and a telescopic mechanism for driving the adding nozzle to extend and retract relative to the inner wall of the pipeline body. The adding nozzle is in communication with the output pipe.

[0007] In the above scheme, for the original fixed structure of the inhibitor spray head, the adding spray head can be extended relative to the inner wall of the pipeline body, when spraying the inhibitor solution, the adding spray head can be controlled to be close to the inner wall of the pipeline body, and after spraying is completed, the adding spray head can be recovered relatively, so that the adding spray head is away from the pipeline body, thereby reducing the blockage of the spray head caused by the oil stains and impurity particles deposited on the inner wall and bottom of the oil pipeline.

[0008] Further, the spraying mechanism comprises a connecting elbow, a spray head support plate and a liquid distribution box, one end of the connecting elbow is connected with the output pipe, the other end is connected with the liquid distribution box, the liquid distribution box is connected with N metal bellows, the other end of each metal bellows is respectively communicated with an adding spray head pipeline; the spray head support plate is fixed on the right side of the liquid distribution box through a support rod, and a plurality of oil passing holes are formed in the spray head support plate; N extension grooves are formed in the spray head support plate, the extension grooves are radially distributed from the inside to the outside with the center of the spray head support plate as the radiation center, and each extension groove is slidably provided with an adding spray head, and the adding spray head with the extension mechanism moves along the extension groove; a plurality of drive impellers are uniformly distributed on the outer circumferential surface of the adding spray head at intervals, and an acceleration groove is formed in the spray head support plate corresponding to each extension groove at the end away from the radiation center, when the adding spray head moves to the outermost end along the extension groove, the acceleration groove is opposite to the uppermost drive impeller of the corresponding adding spray head; the liquid outlet of the adding spray head is located on the end surface of the adding spray head away from the radiation center, and the outer edge of the spray head support plate is flush with the liquid outlet of the adding spray head. By using the design of the spray head support plate cooperating with the extension mechanism, when the adding spray head sprays the inhibitor solution at the outermost end, the liquid outlet of the adding spray head can be flushed by the medium flowing in the pipeline body by using the difference in flow rate in the pipeline body, thereby effectively reducing the fouling phenomenon of the liquid outlet. At the same time, by using the design of the acceleration groove, the flow rate difference of the medium is formed at the adding spray head, the adding spray head is driven to rotate by the drive impeller, the rotation of the adding spray head further accelerates the flushing of the liquid outlet by the medium flowing in the pipeline body, and the rotation of the adding spray head further reduces the fouling phenomenon on the surface of the adding spray head, thereby further reducing the possibility of blockage of the adding spray head.

[0009] Further, the spraying mechanism comprises a drive screw, the drive screw has a light shaft section at both ends and a threaded section in the middle, the light shaft section at one end of the drive screw is rotationally connected with the center of the spray head support plate, and the light shaft section at the other end is rotationally connected with a middle support, and the middle support is fixed with the support rod; a threaded block is threadedly connected on the threaded section of the drive screw, and the extension mechanism is arranged on the threaded block; a driven gear is fixed on the outer end of the drive screw away from the spray head support plate, a limiting groove is formed on the right side of the liquid distribution box, and an external transmission assembly is slidably connected in the limiting groove, the external transmission assembly drives the driven gear to rotate, and the driven gear drives the drive screw to rotate.

[0010] Further, the telescopic mechanism comprises a first connecting seat, a middle connecting rod and a moving slider, the first connecting seat is fixed on the threaded block, one end of the middle connecting rod is hinged with the first connecting seat, the other end is hinged with the moving slider through a second connecting seat, the moving slider is slidingly arranged in the extension sliding groove, a rotating connecting block is fixed on the moving slider, and the adding nozzle is rotatably arranged at the outer end of the rotating connecting block. The telescopic mechanism utilizes the connecting rod structure to realize the rotation of the driving screw rod to drive the telescopic sliding movement of the adding nozzle along the extension sliding groove.

[0011] Preferably, a connecting threaded sleeve is fixed on the pipeline body, the inner wall of the connecting threaded sleeve is provided with threads, the external transmission assembly comprises a lifting screw rod, a limiting slider and a transmission tooth plate, the lifting screw rod is threadedly matched with the inner wall of the connecting threaded sleeve, the outer end of the lifting screw rod extends out of the connecting threaded sleeve, and the inner end is rotatably connected with the limiting slider, the limiting slider is slidingly matched with the limiting sliding groove, the limiting slider is fixed with the transmission tooth plate, and the transmission tooth plate is meshed with the driven gear; when the lifting screw rod is threadedly rotated relative to the connecting threaded sleeve, the limiting slider slides along the limiting sliding groove, the transmission tooth plate moves up and down relative to the connecting threaded sleeve, and the driven gear rotates, so as to drive the threaded block to axially slide along the driving screw rod.

[0012] Further, the liquid supply assembly comprises an equipment base and a stirring barrel, the stirring barrel is arranged on the equipment base, a stirring motor is arranged at the top of the stirring barrel, an output end of the stirring motor is fixedly connected with a stirring branch rod extending into the stirring barrel, a plurality of stirring cross rods are fixed on the stirring branch rod from top to bottom, and a scraper is fixed at the bottom of the stirring branch rod.

[0013] Further, the scraper comprises a bottom branch rod and a bottom wall scraper fixed at the lower end of the bottom branch rod, the bottom branch rod is fixed with the stirring branch rod, and a plurality of crushing holes are arranged at the bottom wall scraper in a spaced manner. By means of the design of the scraper and the crushing holes, the deposition and caking of the corrosion inhibitor solution in the stirring barrel are effectively reduced. Further, the liquid supply assembly further comprises a conveying assembly, the conveying assembly comprises a suction pipe and a dosing pump, the dosing pump is fixed on the equipment base, one end of the suction pipe is in communication with the pipeline of the stirring barrel, and the other end is in communication with the inlet pipeline of the dosing pump.

[0014] Further, the bottom surface of the equipment base is provided with a travelling wheel at the corner, and a handrail is fixed on the side surface of the equipment base.

[0015] Preferably, the connecting assembly comprises a connecting cylinder, the upper end of the connecting cylinder is detachably connected with the output pipe, and the lower end of the connecting cylinder is fixedly installed on the pipeline body; the upper end of the connecting cylinder is provided with a control valve for controlling the opening and closing of the connecting cylinder, and the lower end of the connecting cylinder is provided with a one-way valve for preventing the backflow of the medium in the pipeline body; and the connecting cylinder is provided with a filter cylinder. Through the arrangement of the connecting assembly, the backflow of the medium in the pipeline body can be effectively prevented, and the output pipe and the pipeline body can be detachably arranged, so that the liquid supply assembly and the pipeline body can be separated and have operability.

[0016] The beneficial effect of the present application is that the corrosion inhibitor adding device provided by the present application has a reasonable structure design, an adding nozzle with adjustable position is designed, the adding nozzle is driven to slide by rotating the lifting screw during use, so that the adding nozzle can be close to the inner wall of the oil pipeline as needed, and the spraying can be close to improve the spraying effect of the corrosion inhibitor and improve the utilization rate of the corrosion inhibitor. When spraying, the liquid outlet of the adding nozzle is flush with the outer peripheral surface of the nozzle support plate, and due to the blocking of the nozzle support plate, the medium flow speed around the liquid outlet is fast, so that the liquid outlet can be washed, thereby reducing the attachment of impurities and oil stains on the nozzle, reducing the blockage, and effectively reducing the maintenance period and maintenance cost. At the same time, the adding nozzle can be driven to rotate by the medium flow at the acceleration groove, and the adding nozzle body rotates, which can further intensify the washing of the liquid outlet and reduce the possibility of blockage, and can also reduce the attachment of scale on the outer surface of the adding body. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and examples.

[0018] Figure 1 It is a structure diagram of the corrosion inhibitor adding device of the present application; Figure 2 It is a structure diagram of the corrosion inhibitor adding device of the present application; Figure 3 It is a structure diagram of the stirring assembly of the corrosion inhibitor adding device of the present application; Figure 4 It is a structure partial enlarged view A of the corrosion inhibitor adding device of the present application; Figure 5 It is a structure diagram of the adding mechanism of the corrosion inhibitor adding device of the present application; Figure 6 It is a structure partial enlarged view B of the corrosion inhibitor adding device of the present application; Figure 7 It is a structure diagram of the transmission assembly of the corrosion inhibitor adding device of the present application; Figure 8 It is a structure diagram of the nozzle assembly of the corrosion inhibitor adding device of the present application; Figure 9 It is a structure diagram of the gear transmission part of the corrosion inhibitor adding device of the present application.

[0019] Figure 1, device base; 2, traveling wheel; 3, handrail; 4, stirring barrel; 5, stirring motor; 6, stirring support rod; 7, stirring cross rod; 8, bottom support rod; 9, bottom wall scraper; 10, crushing hole; 11, dosing pump; 12, suction pipe; 13, output pipe; 14, pipe body; 15, connecting cylinder; 16, one-way valve; 17, control valve; 18, connecting threaded sleeve; 19, separation box; 20, support rod; 21, metal bellows; 22, limiting sliding groove; 23, lifting screw; 24, limiting sliding block; 25, transmission tooth plate; 26, middle support; 27, drive screw; 28, driven gear; 29, nozzle support plate; 30, threaded block; 31, first connecting seat; 32, middle connecting rod; 33, extension sliding groove; 34, oil passing hole; 35, moving sliding block; 36, rotary connecting head; 37, acceleration groove; 38, adding nozzle; 39, drive impeller; 40, connecting elbow. DETAILED DESCRIPTION

[0020] The application will now be described in further detail with reference to the drawings. These drawings show only the essential features of the application and are therefore not to scale, and the directions and references (e.g. up, down, left, right, etc.) can only be used to aid the description of the features in the drawings. The following detailed description is therefore not to be taken in a restrictive sense, and the scope of the subject matter sought to be protected is defined only by the claims that follow this detailed description and their equivalents.

[0021] As shown in Figures 1 to 9 , the application provides an inhibitor adding device, which comprises a liquid supply mechanism and a spraying mechanism. The liquid supply mechanism comprises a liquid supply assembly, an output pipe and a connecting assembly.

[0022] The liquid supply assembly comprises a device base 1 and a pipe body 14. The device base 1 is fixedly installed at the top end with a stirring barrel 4, the inside of the stirring barrel 4 is provided with an inhibitor solution, the top end of the stirring barrel 4 is fixedly installed with a stirring assembly, one side of the connection between the stirring barrel 4 and the device base 1 is provided with a conveying assembly, the surface of the pipe body 14 is fixedly installed with a connecting assembly, the right side of the connecting assembly at the connection with the pipe body 14 is provided with a connecting threaded sleeve 18, and one end of the connecting assembly is provided with a spraying mechanism for adding an inhibitor. The spraying mechanism comprises four groups of telescopic adding mechanisms, each group of telescopic adding mechanism comprises an adding nozzle 38 and a telescopic mechanism for driving the adding nozzle 38 to extend or retract relative to the inner wall of the pipe body 14. The four groups of telescopic adding mechanisms are evenly distributed in a ring shape.

[0023] Referring to Figure 1 , Figure 3 and Figure 4Further, four corners of the bottom end of the device base 1 are provided with travelling wheels 2, and the side of the device base 1 is fixedly connected with a handrail 3. The stirring assembly comprises a stirring motor 5, the stirring motor 5 is arranged at the top of the stirring barrel 4, the output end of the stirring motor 5 is fixedly connected with a stirring branch 6, and the stirring branch 6 extends into the stirring barrel 4. A plurality of stirring cross bars 7 are fixedly connected to the surface of the stirring branch 6 from top to bottom, and two scraper members are fixedly connected to the bottom of the stirring branch 6. The scraper member comprises a bottom branch 8 and a bottom wall scraper 9 fixed to the lower end of the bottom branch 8. The surface of the bottom wall scraper 9 is provided with a plurality of broken holes 10.

[0024] The liquid supply assembly further comprises a conveying assembly, and the conveying assembly comprises a dosing pump 11 and a suction pipe 12. The dosing pump 11 is fixedly installed on the device base 1, the suction pipe 12 is fixedly communicated between the inlet end of the dosing pump 11 and the stirring barrel 4, and the outlet end of the dosing pump 11 is fixedly communicated with an output pipe 13.

[0025] The connecting assembly comprises a connecting cylinder 15, and the upper end of the connecting cylinder 15 is detachably connected with the output pipe 13. The lower end of the connecting cylinder 15 is fixedly installed with the pipeline body 1. The upper end of the connecting cylinder 15 is provided with a control valve 17 for controlling the opening and closing of the connecting cylinder 15, and the lower end is provided with a one-way valve 16 for preventing the medium in the pipeline from flowing backward. A filter cylinder is arranged in the connecting cylinder 15 and corresponds to the pipeline between the one-way valve 16 and the control valve 17. The filter cylinder is used for filtering the corrosion inhibitor.

[0026] In use, the device itself is provided with a control module and a related function switch panel, and stores the corrosion inhibitor. This part of the device can be moved and converted to use in different places through the travelling wheels 2 and the handrail 3. The corrosion inhibitor in the stirring barrel 4 can be stirred by starting the stirring motor 5 to drive the stirring branch 6 and the stirring cross bars 7, so as to reduce the deposition and caking of the corrosion inhibitor itself. Meanwhile, the bottom branch 8 is also installed on the stirring branch 6 and can be rotated at the same time, and the bottom wall scraper 9 connected thereto can scrape the corrosion inhibitor deposited on the bottom and participate in stirring, thereby reducing the waste of the corrosion inhibitor. The deposition and caking scraped off by the bottom wall scraper 9 is easier to break up through the stirring of the bottom wall scraper 9 with holes, which is conducive to the uniformity of the corrosion inhibitor. The output pipe 13 is connected with the connecting cylinder 15, and the filter cylinder is arranged on the connecting cylinder 15, which can filter the corrosion inhibitor and prevent the caked corrosion inhibitor from causing the blockage of the spray head. The one-way valve 16 can prevent the medium in the pipeline from flowing backward, and the control valve 17 is used to control the opening and closing of the connecting cylinder 15. When the device storing this part is moved, the control valve 17 can be closed, so that the liquid supply assembly is separated from the pipeline body, and the liquid supply assembly is movable and operable.

[0027] Referring to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 ,Figure 8 And Figure 9 Further, the spraying mechanism comprises the connecting elbow 40, the spray head support plate 29 and the liquid distribution box 19. One end of the connecting elbow 40 is fixedly connected with the liquid distribution box 19, and a limiting sliding groove 22 is formed in the right end surface of the liquid distribution box 19. An external transmission assembly is slidingly connected in the limiting sliding groove 22, four supporting rods 20 are fixedly connected to the right end surface of the liquid distribution box 19, and the four supporting rods 20 are fixedly connected with the left end surface of the spray head support plate 29. A middle support 26 is fixedly connected between the four supporting rods 20. A drive screw 27 is rotatably connected between the middle support 26 and the spray head support plate 29. The drive screw 27 has a light shaft section at both ends and a threaded section in the middle, the light shaft section at one end is rotatably connected with the center of the spray head support plate 29, and the light shaft section at the other end is rotatably connected with the middle support 26. Four extension sliding grooves 33 are formed in the surface of the spray head support plate 29, and an adding spray head 38 is slidingly connected in each extension sliding groove 33. Each adding spray head 38 is communicated with the liquid distribution box 19 through a metal bellows 21.

[0028] The external transmission assembly comprises a lifting screw 23, a limiting sliding block 24 and a transmission tooth plate 25. The lifting screw 23 is threadedly connected in the inside of the connecting threaded sleeve 18, the top of the lifting screw 23 extends out of the connecting threaded sleeve 18, and the lower end of the lifting screw 23 is rotatably connected with the limiting sliding block 24. The lower end of the limiting sliding block 24 is fixedly connected with the transmission tooth plate 25.

[0029] The outer end of the drive screw 27 away from the spray head support plate 29 is fixedly connected with a driven gear 28, and the side surface of the transmission tooth plate 25 is meshingly connected with the driven gear 28. A threaded block 30 is threadedly connected to the surface of the drive screw 27. The telescopic mechanism comprises a first connecting seat 31, a middle connecting rod 32 and a moving sliding block 35.

[0030] Corresponding to the four groups of telescopic mechanisms, four first connecting seats 31 are evenly distributed on the outer side of the threaded block 30 in a ring shape. One end of the middle connecting rod 32 is hingedly connected with the first connecting seat 31. The moving sliding block 35 is slidingly connected in the inside of the extension sliding groove 33, a rotating connector 36 is fixedly installed at the outer end of the moving sliding block 35, and the outer end of the rotating connector 36 is rotatably provided with the adding spray head 38. A plurality of drive impellers 39 are fixedly connected to the circumferential surface of the adding spray head 38. The other side of the moving sliding block 35 is fixedly connected with a second connecting seat, and the other end of the middle connecting rod 32 is hingedly connected with the second connecting seat. A plurality of oil passing holes 34 are formed in the middle of the surface of the spray head support plate 29. In this embodiment, the oil passing holes 34 can be preferably four large through holes, which are respectively arranged between adjacent two extension sliding grooves 33. The spray head support plate 29 is provided with an acceleration groove 37 corresponding to the outer end of each extension sliding groove 33. When the adding spray head 38 moves to the outermost end along the extension sliding groove 33, the acceleration groove 27 is opposite to the corresponding adding spray head 38 located at the uppermost drive impeller 39.

[0031] In use, the limiting sliding block 24 is slidingly connected inside the limiting sliding groove 22, and the end of the lifting screw 23 outside the pipeline body 14 is rotated, at which time the lifting screw 23 moves in the vertical direction, thereby driving the limiting sliding block 24 to move and the transmission gear plate 25 to move, the transmission gear plate 25 moves along the vertical direction to rotate the driven gear 28, the rotation of the driven gear 28 drives the driving screw 27 to rotate, the middle connecting rod 32 can limit the rotation of the threaded block 30, so that the threaded block 30 can move along the driving screw 27, the two ends of the middle connecting rod 32 are respectively hinged to the first connecting seat 31 and the second connecting seat, under the action of each middle connecting rod 32, the moving sliding block 35 moves inside the extension sliding groove 33, driving the rotary connector 36 and the adding nozzle 38 to move along the extension sliding groove 33. Each metal bellows 21 communicates the rotary connector 36 and the distribution box 19, and a certain amount of allowance is provided to meet the expansion condition, and in use, the distance from the outermost end of each adding nozzle 38 is extended and moved, which is the position at which the corrosion inhibitor is more appropriately sprayed, so that the corrosion inhibitor can have better effect. At this time, the adding nozzle 38 and the driving impeller 39 are opposite to the acceleration groove 37, the liquid flowing through the acceleration groove 37 has a smaller area, and the flow rate of the liquid flowing through the acceleration groove 37 is accelerated to a certain extent, and the rest of the adding nozzle 38 and the driving impeller 39 is blocked by the nozzle support plate 29, so that the accelerated liquid can drive the driving impeller 39 to rotate, so that the adding nozzle 38 rotates, the adding nozzle 38 is installed at the rotating end of the rotary connector 36, reducing the blocking condition of the adding nozzle 38, and the flow rate in the middle of the pipeline is fast by itself, which can also reduce the blocking condition of the adding nozzle 38. After the addition of the corrosion inhibitor is completed, the lifting screw 23 is rotated in the direction until one end of the limiting sliding block 24 abuts against the inner wall of the extension sliding groove 33, so that the adding nozzle 38 is away from the inner wall of the pipeline body 14.

[0032] Therefore, when spraying, the liquid outlet of the adding nozzle 38 is flush with the outer peripheral surface of the nozzle support plate 29, and at this position, the surrounding medium flow rate is fast due to the blocking of the nozzle support plate 29, which can wash the liquid outlet and reduce the attachment of impurities and oil stains on the adding nozzle 38, thereby reducing the blocking effect and effectively reducing the maintenance period and maintenance cost. At the same time, the adding nozzle 38 can be driven to rotate by the medium flow at the acceleration groove 37, and the adding nozzle body 38 rotates, which can further intensify the washing of the liquid outlet and reduce the possibility of blocking, and can also reduce the attachment of scale on the outer surface of the adding body 38.

[0033] In this embodiment, the retractable adding mechanism is fixedly installed at a suitable position on the pipe body 14, while the corrosion inhibitor storage part is movable. It can be used by connecting via the output pipe 13. After connecting the output pipe 13 to the connecting cylinder 15, the control valve 17 is opened, and the dosing pump 11 is started. The corrosion inhibitor is input into the separatory box 19 through the suction pipe 12 and the output pipe 13, then enters the rotary connector 36 through the metal bellows 21, and is finally sprayed out through the adding nozzle 38. The design of the separatory box 19 and the oil passage 34 minimizes the impact on oil flow. The lifting screw 23 and the connecting threaded sleeve 18 use precision threads and related sealing measures to prevent leakage. The connecting elbow 40 is connected to the connecting cylinder 15. The strength of the connecting bend 40 is sufficient to ensure stable use of the adding mechanism. After the corrosion inhibitor is added, the connection between the connecting cylinder 15 and the output pipe 13 can be disconnected, and then the control valve 17 can be closed. The addition is complete. It should be noted that this invention is a corrosion inhibitor adding device. All components are general standard parts or parts known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power components, electrical components, and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle above and complete the electrical connection between each electrical component in sequence. The detailed connection method is a well-known technology in the field.

[0034] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A corrosion inhibitor adding device, disposed on the pipe body, characterized in that: Includes a liquid supply mechanism and a spraying mechanism; The liquid supply mechanism includes a liquid supply component, an output pipe and a connecting component. One end of the output pipe is connected to the liquid supply component and is supplied with corrosion inhibitor solution by the liquid supply component, while the other end is connected to the pipe body through the connecting component. The spraying mechanism includes N sets of retractable adding mechanisms. Each set of retractable adding mechanisms has an adding nozzle and a telescopic mechanism that drives the adding nozzle to extend and retract relative to the inner wall of the pipe body. The adding nozzle is connected to the output pipe.

2. The corrosion inhibitor adding device as described in claim 1, characterized in that: The spraying mechanism includes a connecting bend, a nozzle support plate, and a liquid distribution box. One end of the connecting bend is connected to the output pipe, and the other end is connected to the liquid distribution box. The liquid distribution box has N metal corrugated pipes, and the other end of each metal corrugated pipe is connected to an additional nozzle pipeline. The nozzle support plate is fixed to the right side of the liquid distribution box by a support rod, and the nozzle support plate is provided with several oil passage holes; the nozzle support plate is provided with N extension grooves, which are radially distributed from the inside to the outside with the center of the nozzle support plate as the radial center, and an adding nozzle is slidably installed in each extension groove; the telescopic mechanism moves the adding nozzle along the extension groove. The outer circumferential surface of the added nozzle is evenly distributed with several driving impellers. The nozzle support plate is provided with an acceleration groove at the end away from the radiation center for each extension slide. When the added nozzle moves to the outermost end along the extension slide, the acceleration groove is directly aligned with the driving impeller at the top of the corresponding added nozzle. The liquid outlet of the added nozzle is located on the end face of the added nozzle away from the radiation center, and the outer edge of the nozzle support plate is flush with the liquid outlet of the added nozzle.

3. The corrosion inhibitor adding device as described in claim 2, characterized in that: The spraying mechanism includes a drive screw, which has optical axis sections at both ends and a threaded section in the middle. The optical axis section at one end of the drive screw is rotatably connected to the center of the nozzle support plate, and the optical axis section at the other end is rotatably connected to the middle bracket. The middle bracket is fixed to the support rod. The threaded section of the drive screw is provided with a threaded block, and the telescopic mechanism is provided on the threaded block. A driven gear is fixed at the outer end of the drive screw away from the nozzle support plate. A limit groove is opened on the right side of the liquid separator. An external transmission component is slidably connected in the limit groove. The external transmission component drives the driven gear to rotate, and the driven gear drives the drive screw to rotate.

4. The corrosion inhibitor adding device as described in claim 3, characterized in that: The telescopic mechanism includes a first connecting seat, a central connecting rod, and a movable slider. The first connecting seat is fixed on a threaded block. One end of the central connecting rod is hinged to the first connecting seat, and the other end is hinged to the movable slider via a second connecting seat. The movable slider is slidably disposed in an extension groove. A rotating connecting block is fixed on the movable slider, and the adding nozzle is rotatably disposed on the outer end of the rotating connecting block.

5. The corrosion inhibitor adding device as described in claim 4, characterized in that: A threaded connecting sleeve is fixed to the pipe body. The inner wall of the threaded connecting sleeve has threads. The external transmission assembly includes a lifting screw, a limiting slider, and a transmission gear plate. The lifting screw is threadedly engaged with the inner wall of the threaded connecting sleeve. The outer end of the lifting screw extends out of the threaded connecting sleeve, and the inner end is rotatably connected to the limiting slider. The limiting slider is slidably engaged with a limiting groove. The limiting slider is fixed to the transmission gear plate, and the transmission gear plate meshes with a driven gear. When the lifting screw rotates threadedly relative to the threaded connecting sleeve, the limiting slider slides along the limiting groove, the transmission gear plate moves up and down relative to the threaded connecting sleeve, and the driven gear rotates, thereby driving the threaded block to slide axially along the driving screw.

6. The corrosion inhibitor adding device as described in claim 1, characterized in that: The liquid supply assembly includes a device base and a stirring tank. The stirring tank is mounted on the device base. A stirring motor is mounted on the top of the stirring tank. A stirring support rod extending into the stirring tank is fixedly connected to the output end of the stirring motor. Several stirring crossbars are fixed from top to bottom on the stirring support rod, and a scraper is fixed at the bottom of the stirring support rod.

7. The corrosion inhibitor adding device as described in claim 6, characterized in that: The scraper component includes a bottom support rod and a bottom wall scraper fixed to the lower end of the bottom support rod. The bottom support rod is fixed to the stirring support rod, and the bottom wall scraper is provided with a plurality of breaking holes spaced apart.

8. The corrosion inhibitor adding device as described in claim 6, characterized in that: The liquid supply assembly also includes a delivery assembly, which includes a suction pipe and a dosing pump. The dosing pump is fixed on the equipment base. One end of the suction pipe is connected to the mixing tank pipeline, and the other end is connected to the inlet pipeline of the dosing pump.

9. The corrosion inhibitor adding device as described in claim 6, characterized in that: The equipment base is equipped with wheels at the bottom corners, and a handrail is fixed to the side of the equipment base.

10. The corrosion inhibitor adding device as described in claim 1, characterized in that: The connecting assembly includes a connecting cylinder, the upper end of which is detachably connected to the output pipe and the lower end of which is fixedly installed on the pipe body; the upper end of the connecting cylinder has a control valve for controlling the opening and closing of the connecting cylinder and the lower end has a one-way valve to prevent oil backflow into the pipe body; a filter cylinder is provided inside the connecting cylinder.

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