Seawater-corrosion-resistant anti-blocking wear-resistant nozzle of bulk material conveying pipeline

Abstract

The invention relates to the technical field of oil extraction equipment, in particular to a seawater-corrosion-resistant bulk material conveying pipeline anti-blocking wear-resistant nozzle which comprises an upper shell, a lower shell, a propeller blade, a transmission mechanism, an anti-blocking sliding block and an anti-blocking assembly, the bottom of the upper shell is rotationally connected with the lower shell, and an oil spraying opening is formed in the side wall of the upper shell; the transmission mechanism is fixedly installed in the lower shell and connected with the upper shell, the propeller blades are rotatably installed on the transmission mechanism, the anti-blocking sliding block is installed in the oil spraying opening in a sliding mode, the anti-blocking assembly is installed in the upper shell, and the propeller blades convert liquid pressure into rotating power of the upper shell through the transmission mechanism. When the upper shell rotates, the anti-blocking assembly is matched with the anti-blocking sliding block to enable the anti-blocking sliding block to move in the oil injection opening in a limited mode, the anti-blocking sliding block scrapes precipitates on the oil injection opening, and the situation that the precipitates in petroleum are continuously accumulated on the oil injection opening, and consequently the nozzle of the ejector is blocked is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil extraction equipment, in particular to an anti-seawater-corrosion, anti-blocking and wear-resistant nozzle for bulk material conveying pipeline. BACKGROUND

[0002] During offshore oil extraction, crude oil is pumped to the ground through a wellbore and then temporarily transported to a platform storage tank. Due to the high wax content and easy condensation of crude oil, long-term standing will cause wax, asphalt and other substances to deposit on the tank bottom, forming sludge. These deposits not only reduce the effective volume of the storage tank, but also increase oil loss, block the conveying pipeline, and significantly increase the cost of cleaning and maintaining the storage tank.

[0003] Currently, offshore oil platforms generally use rotary injectors to stir the crude oil in the storage tank to prevent the accumulation of deposits. The working principle is to drive the crude oil to be ejected at high speed from the nozzle by an external circulating pump, and to use the fluid impact force to keep the oil in a flowing state. However, most existing rotary injectors are not convenient for spraying oil over a larger area, and are not convenient for more fully and quickly blending oil with additives. To avoid the limited spraying range of rotary injectors when spraying oil, the oil blending rotary injector of the invention patent with application number CN202323607046.3 is provided. The invention sets a plurality of nozzles and flange plates on the rotary injector body, the surface of the flange plate is sleeved with a fixed plate, the top of the fixed plate is provided with a dispersion mechanism, the number of the dispersion mechanism is several, the dispersion mechanism includes a first dispersion plate, two first swivels, a fixed rod, a second swivel and a second dispersion plate, the first swivel is fixedly connected to the first dispersion plate on the side close to the first dispersion plate, and the second swivel is fixedly connected to the second dispersion plate on the side close to the second dispersion plate. This solves the problem of limited spraying range of most existing rotary injectors when spraying oil, and the problem of inconvenience in more fully and quickly blending oil with additives. However, oil can easily solidify in a low-temperature environment, and in crude oil with a high wax content, wax can precipitate and accumulate on the nozzle of the rotary injector during oil spraying, eventually causing the nozzle of the rotary injector to be blocked. Moreover, the crude oil collected on offshore oil platforms may contain seawater, which can cause corrosion of the nozzle, resulting in reduced blending speed of the rotary injector and the accumulation of deposits.

[0004] Therefore, in order to ensure the continuity of crude oil transportation and the efficiency of storage tank maintenance, an anti-seawater-corrosion, anti-blocking and wear-resistant nozzle for bulk material conveying pipeline is proposed. SUMMARY

[0005] The anti-seawater-corrosion bulk conveying pipeline anti-blocking wear-resistant nozzle aims at avoiding the deposition in the oil to block the nozzle of the rotary injector when the rotary injector sprays the oil in the oil tank.

[0006] To achieve the above object, the present application provides the following technical scheme.

[0007] The anti-seawater-corrosion bulk conveying pipeline anti-blocking wear-resistant nozzle comprises an upper shell, a lower shell, a rotary blade, a transmission mechanism, an anti-blocking sliding block and an anti-blocking assembly, the upper shell, the lower shell and the rotary blade are made of titanium and titanium alloy, the lower shell is fixedly connected with the conveying pipeline through a flange, the bottom of the upper shell is rotatably connected with the lower shell, the side wall of the upper shell is provided with an oil injection port, the oil injection port is in communication with the inside of the upper shell, the transmission mechanism is fixedly installed in the lower shell and connected with the upper shell, the rotary blade is rotatably installed on the transmission mechanism and located at the connection between the lower shell and the conveying pipeline, the anti-blocking sliding block is slidably installed in the inside of the oil injection port, the anti-blocking assembly is installed in the upper shell, the liquid pressure is converted into the rotary power of the upper shell by the transmission mechanism, and the anti-blocking assembly drives the anti-blocking sliding block to clean the oil injection port when the upper shell rotates.

[0008] The upper shell and the lower shell are combined to form the rotary ejector, oil flows from the anti-seawater corrosion bulk material conveying pipeline to the lower shell, after the oil is stored in the oil tank, with the increase of storage time and the gravity of the upper oil, the heavy components in the oil will gradually settle to the bottom of the tank, the longer the time, the more the sediment, the rotary ejector uses the pump system equipped in the tank area, before the oil is discharged from the tank, the circulating pump in the tank area is started to spray the oil at the bottom of the tank to prevent sedimentation, the rotary ejector works for about 1-2 hours to complete the anti-deposition work of the storage tank, so that the sediment at the bottom of the storage tank can be dispersed and reduced, the cleaning of the storage tank is reduced, the operation is convenient, safe and environmentally friendly, the rotary ejector body has no power device, it is equipped with the original process pump system in the tank area, the equipment is connected with the external circulating pump through pipelines, the pump pumps out the oil in the tank, the rotary ejector converts the liquid pressure of the pump into liquid jet, when the oil is sprayed from the upper shell through the pipeline, the rotating blade rotates under the impact of the liquid, the rotation of the rotating blade is converted into the rotation of the upper shell through the transmission mechanism, the upper shell rotates slowly at a speed of 12-25 minutes / revolution, the medium in the storage tank is sprayed and mixed in all directions to prevent sedimentation, there is no dead angle in the tank, the mixing speed is fast, the mixing time is shortened, and the operation cost is saved, when the upper shell rotates, the anti-blocking assembly and the anti-blocking sliding block slide, the anti-blocking assembly limits the movement of the anti-blocking sliding block in the oil injection port, the anti-blocking sliding block scrapes the precipitates on the oil injection port, prevents the precipitates in the oil from continuously accumulating in the oil injection port, prevents the oil injection port of the ejector from being blocked, the upper shell, the lower shell and the rotating blade are made of titanium and titanium alloy materials, which can improve the anti-seawater corrosion ability of the nozzle.

[0009] Preferably, the anti-blocking assembly comprises a driving block, a horizontal spring, a vertical spring, a pull rod and a column, a rectangular cavity is formed above the oil injection port, the driving block is horizontally and limitingly slidably installed in the rectangular cavity, the anti-blocking sliding block is vertically and limitingly slidably installed in the rectangular cavity, the width of the driving block is equal to the width of the anti-blocking sliding block and the width of the oil injection port, one end of the horizontal spring is connected with the side wall of the driving block, and the other end is connected with the side wall of the rectangular cavity, the height of the anti-blocking sliding block is the same as the height of the oil injection port, one end of the vertical spring is connected with the end face of the anti-blocking sliding block, and the other end is connected with the upper wall of the rectangular cavity, the lower end face of the driving block is attached to the upper end face of the anti-blocking sliding block, the lower end of the driving block and the upper end of the anti-blocking sliding block are both provided with sliding inclined surfaces with the same inclination angle, a sliding groove is formed in the anti-blocking sliding block, a cylindrical rod is fixedly installed on the side wall of the driving block, the cylindrical rod is in sliding connection with the sliding groove and extends into the interior of the upper shell, the column is fixedly installed on the transmission mechanism and located at one side of the oil injection port, the pull rod is fixedly installed on the end of the column, the pull rod is made of elastic metal alloy material, the end of the pull rod is provided in the shape of a hook, and the end of the pull rod is in sliding connection with the cylindrical rod when the upper shell rotates.

[0010] When the anti-blocking assembly has not cooperated with the anti-blocking slider, the bottom of the anti-blocking slider is flush with the upper end surface of the oil injection port, and the driving block and the anti-blocking slider are both located in the rectangular cavity, which does not affect the oil injection from the oil injection port; when the upper shell starts to rotate, the cylindrical rod and the pull rod are in sliding cooperation, the cylindrical rod enters the hook-shaped inside of the end of the pull rod, and in the process of continuous rotation of the upper shell, the cylindrical rod is horizontally pulled by the pull rod in the sliding groove under the limiting action of the pull rod, and the driving block moves horizontally in the rectangular cavity, the horizontal spring is stretched, and the pull rod is elastically deformed; since the lower end surface of the driving block is attached to the upper end surface of the anti-blocking slider, and there is a sliding inclined surface with the same angle of inclination at the attachment position, when the driving block moves horizontally, the sliding inclined surface of the driving block and the sliding inclined surface of the anti-blocking slider slide relatively, the anti-blocking slider moves vertically downward, moves from the rectangular cavity to the oil injection port, and the vertical spring is stretched; when the lower end surface of the anti-blocking slider is attached to the bottom of the oil injection port, the pull rod and the cylindrical rod are disengaged in the process of continuous rotation of the upper shell, the pull rod returns to the original state, the horizontal spring and the vertical spring are contracted, the driving block and the anti-blocking slider return to the rectangular cavity to complete the reset; the cooperation of the pull rod and the cylindrical rod in the rotation of the upper shell enables the anti-blocking slider to automatically scrape and clean the inside of the oil injection port, prevents the accumulation of precipitates in the oil from blocking the oil injection port, and simultaneously eliminates the need for additional power devices and reduces the frequency of detection and maintenance of the equipment.

[0011] Preferably, a plurality of oil injection ports are circumferentially arranged on the upper shell, the included angles between every two of the oil injection ports are the same, the anti-blocking sliders and the anti-blocking assemblies are installed in the plurality of oil injection ports, the axis of the stand column coincides with the axis of the upper shell, the end of the stand column is provided with an intermittent cam, the intermittent cam is fixedly connected to the inside of the upper shell, the end of the intermittent cam is in sliding cooperation with the end of the pull rod, and the intermittent cam is in rotating cooperation with the propeller blade through a reduction gear.

[0012] Four oil injection ports are arranged on the upper end of the upper shell, the included angles between every two of the oil injection ports are 90°, when the anti-blocking slider in a certain oil injection port completes scraping and cleaning and the pull rod and the cylindrical rod are disengaged, the upper shell continuously rotates, the pull rod and the cylindrical rod of another oil injection port are in sliding cooperation, the anti-blocking slider scrapes and cleans the oil injection port, the intermittent cam rotates with the upper shell, the cooperation of the intermittent cam and the end of the pull rod enables the intermittent cam to drive the pull rod to reciprocate at the end of the stand column when the intermittent cam rotates, the pull rod can be in sliding cooperation with the cylindrical rod when the pull rod moves toward the oil injection port, and the pull rod is not in contact with the cylindrical rod when the pull rod moves away from the oil injection port, the intermittent scraping and cleaning of each oil injection port in the process of continuous rotation of the upper shell avoids the accumulation of precipitates in the oil injection port and does not affect the efficiency of the rotary injector.

[0013] Preferably, the oil injection port is provided with a limiting groove on one side, and the limiting groove is located in the upper shell, the anti-blocking slider is provided with a clamping groove, the clamping groove is located on one side of the limiting groove, the limiting groove is rotatably installed with a rotating rod, the upper end of the rotating rod is fixedly installed with a clamping plate, the clamping plate is in sliding fit with the clamping groove, the lower end of the rotating rod is fixedly installed with a stress plate, the stress plate extends to the outside of the limiting groove, the rotating rod is sleeved with a torsional spring, the torsional spring is located between the clamping plate and the stress plate, the end of the torsional spring abuts against the limiting groove, the upright column is fixedly installed with a pushing rod, the pushing rod is located below the pull rod, and there is a set angle between the pushing rod and the pull rod, and the upper shell is in sliding fit with the stress plate when rotating.

[0014] By providing the limiting groove in the upper shell, the clamping plate is located in the clamping groove when the pull rod and the cylindrical rod are not matched, and the clamping plate limits the vertical movement of the anti-blocking slider, the angle between the pushing rod and the pull rod is 30°, and the cylindrical rod is located above the clamping groove. When the upper shell rotates to make one cylindrical rod located on one side of the pull rod, the pushing rod abuts against the stress plate when the pull rod and the cylindrical rod are not matched, and the upper shell continuously rotates to push the stress plate, so that the rotating rod rotates, the clamping plate rotates to leave the clamping groove, the end of the torsional spring abuts against the side wall of the limiting groove and elastically deforms, the clamping plate abuts against the side wall of the anti-blocking slider, and the clamping plate cannot limit the vertical movement of the anti-blocking slider at this time. The pull rod and the cylindrical rod are matched, the pushing rod is separated from the stress plate, the driving block moves to make the anti-blocking slider vertically move in the oil injection port, and the clamping plate returns to the clamping groove under the deformation force of the torsional spring after the driving block and the anti-blocking slider reset, so as to limit the vertical movement of the anti-blocking slider, avoid the anti-blocking slider from shaking under the impact of liquid when the cleaning work is not performed, reduce the impact between mechanisms, and ensure the normal operation of the anti-blocking assembly.

[0015] Preferably, two collecting grooves are symmetrically arranged in the oil injection port, the lengths of the two collecting grooves are equal to the length of the oil injection port, the collecting grooves are integrally provided with inclined slopes, the inclined slopes are towards the opening of the oil injection port, and the cross-sectional shape of the collecting groove is trapezoidal.

[0016] By providing the collecting groove in the oil injection port, the petroleum precipitate scraped by the anti-blocking slider from the side wall of the oil injection port falls into the bottom of the collecting groove along the trapezoidal inclined side wall of the collecting groove, and the inclined slope facilitates the flow of the precipitate to the opening of the oil injection port. The precipitate is accumulated below both ends of the anti-blocking slider in the process of cleaning the precipitate, so that the anti-blocking slider cannot completely close the oil injection port and affects the cleaning effect of the oil injection port, and part of the precipitate in the collecting groove can be taken out of the oil injection port under the impact of the liquid.

[0017] Preferably, the bottom of the driving block is symmetrically provided with two scraping plates, the two scraping plates pass through the anti-blocking sliding block and are in sliding fit with the anti-blocking sliding block, the end of the two scraping plates extends to the bottom of the collecting groove, the bottom of the anti-blocking sliding block is symmetrically provided with trapezoidal protrusions, the trapezoidal protrusions are in fit with the side wall of the scraping plate, and the trapezoidal protrusions are in the same shape as the cross section of the collecting groove.

[0018] When the anti-blocking sliding block has not moved, one end surface of the scraping plate is flush with the outer end surface of the oil injection port, the cross section shape of the trapezoidal protrusion is combined with the cross section shape of the scraping plate, and the cross section shape of the trapezoidal protrusion is the same as the cross section shape of the collecting groove, the trapezoidal protrusion can enhance the cleaning effect of the anti-blocking sliding block on the inside of the oil injection port, the scraping plate moves with the driving block when the driving block moves horizontally, the scraping plate first moves towards the inside of the upper shell, and then moves towards the outside of the oil injection port after the driving block is reset, the scraping plate moves while being limited to rotate to adapt to the inclined slope of the collecting groove, and the scraping plate can push out the precipitates in the collecting groove which are not flushed out by the oil, thereby improving the cleaning effect of the anti-blocking sliding block.

[0019] Preferably, the driving block is slidably provided with a blocking block, the bottom of the blocking block is in fit with the upper end surface of the anti-blocking sliding block, the width of the blocking block is equal to the width of the sliding groove, a thrust spring is fixedly installed above the blocking block, and one end of the thrust spring is fixedly connected with the driving block.

[0020] When the driving block and the anti-blocking sliding block move relatively, the anti-blocking sliding block moves downwards, the end of the cylindrical rod is separated from the sliding groove, at this time, the thrust spring is elongated to push the blocking block into the sliding groove, the blocking block blocks the sliding groove, and the oil is prevented from entering the cooperation position of the driving block and the anti-blocking sliding block through the sliding groove to disturb the anti-blocking sliding block when the anti-blocking sliding block is working, and the normal work of the anti-blocking assembly and the anti-blocking sliding block is ensured.

[0021] Preferably, the thickness of the scraping plate is half of the thickness of the collecting groove, the scraping plate is provided in the shape of an "L" and protrudes towards the inside of the upper shell, and the length of the end of the scraping plate is half of the length of the collecting groove.

[0022] By setting the thickness of the scraping plate to be half of the thickness of the collecting groove, the scraping plate can completely clean the precipitates falling into the bottom of the collecting groove along the trapezoidal inclined side wall of the collecting groove, and the "L"-shaped scraping plate can push out the precipitates in the collecting groove when reciprocating in the collecting groove, thereby further enhancing the cleaning effect of the anti-blocking sliding block.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] 1. By setting the anti-blocking assembly and the sliding cooperation of the anti-blocking slider, when the upper shell rotates, the anti-blocking assembly makes the anti-blocking slider move in the oil injection port, and the anti-blocking slider scrapes the precipitate on the oil injection port, avoiding the continuous accumulation of the precipitate in the oil injection port, preventing the oil injection port of the injector from being blocked.

[0025] 2. By setting the cooperation of the pull rod and the cylindrical rod, the driving block and the anti-blocking slider are limited to move, and when the upper shell rotates, the cooperation of the pull rod and the cylindrical rod makes the anti-blocking slider automatically scrape and clean the inside of the oil injection port, preventing the accumulation of the precipitate in the oil injection port, without the need for additional power devices, reducing the detection and maintenance frequency of the equipment.

[0026] 3. By setting multiple anti-blocking sliders in multiple oil injection ports, the upper shell intermittently scrapes and cleans each oil injection port during continuous rotation, avoiding the accumulation of the precipitate in the oil injection port, without affecting the efficiency of the rotary injector. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the appearance structure of the present application;

[0028] Figure 2 It is a schematic diagram of the internal structure of the present application;

[0029] Figure 3 It is a schematic diagram of the side cut of the present application;

[0030] Figure 4 It is a schematic diagram of the cooperation of the clamping plate and the clamping groove of the present application;

[0031] Figure 5 It is a schematic diagram of the cooperation of the pull rod and the force plate of the present application;

[0032] Figure 6 It is a schematic diagram of the pull rod pulling the cylindrical rod of the present application;

[0033] Figure 7 It is a schematic diagram of the anti-blocking slider completely closing the oil injection port of the present application;

[0034] Figure 8 It is a schematic diagram of the cooperation of the blocking block and the sliding groove of the present application.

[0035] In the figure: 1, the upper shell; 12, the oil injection port; 13, the rectangular cavity; 14, the limiting groove; 15, the rotating rod; 16, the clamping plate; 17, the stress plate; 18, the torsional spring; 19, the collection groove; 2, the lower shell; 3, the rotating propeller blade; 4, the transmission mechanism; 5, the anti-blocking sliding block; 51, the sliding groove; 52, the clamping groove; 53, the trapezoidal convex; 6, the anti-blocking assembly; 61, the driving block; 611, the scraping plate; 612, the sliding inclined surface; 62, the horizontal spring; 63, the vertical spring; 64, the pull rod; 65, the column; 66, the cylindrical rod; 67, the pushing rod; 68, the intermittent cam; 7, the blocking block; 71, the thrust spring. DETAILED DESCRIPTION

[0036] Please refer to Figures 1 to 8 The present application provides an anti-seawater-corrosion bulk material conveying pipeline anti-blocking wear-resistant nozzle, and the technical scheme is as follows:

[0037] The anti-seawater corrosion bulk material conveying pipeline anti-blocking wear-resistant nozzle comprises an upper shell 1, a lower shell 2, a rotating blade 3, a transmission mechanism 4, an anti-blocking sliding block 5 and an anti-blocking assembly 6, the lower shell 2 is fixedly connected with the conveying pipeline through a flange, the bottom of the upper shell 1 is rotationally connected with the lower shell 2, an oil injection port 12 is arranged on the sidewall of the upper shell 1 and communicates with the inside of the upper shell 1, the transmission mechanism 4 is fixedly installed in the lower shell 2 and connected with the upper shell 1, the rotating blade 3 is rotationally installed on the transmission mechanism 4 and located at the position where the lower shell 2 is connected with the conveying pipeline, the anti-blocking sliding block 5 is slidingly installed in the inside of the oil injection port 12, the anti-blocking assembly 6 is installed in the upper shell 1, the rotating blade 3 converts the liquid pressure into the rotating power of the upper shell 1 through the transmission mechanism 4, and the anti-blocking assembly 6 drives the anti-blocking sliding block 5 to clean the oil injection port 12 when the upper shell 1 rotates, the upper shell 1 and the lower shell 2 combine to form a rotary injector, petroleum flows from the anti-seawater corrosion bulk material conveying pipeline to the lower shell 2, after the oil product is stored in the oil tank, with the increase of the storage time and the gravity of the upper oil product, the heavy components in the oil product will gradually settle to the bottom of the tank, the longer the time, the more the sediment, the rotary injector uses the pump system provided in the tank area, before the oil product is discharged from the tank, the tank area circulating pump is started to spray the oil product at the bottom of the storage tank to prevent sedimentation, the rotary injector can complete the sediment prevention work of the storage tank for about 1-2 hours, so that the sediment at the bottom of the storage tank can be dispersed and reduced, the cleaning of the storage tank is reduced, the operation is convenient, safe and environmentally friendly, the rotary injector body has no power device, it is matched with the original process pump system in the tank area, the equipment is connected with the external circulating pump through a pipeline, the pump discharges the oil product in the tank, the rotary injector converts the liquid pressure of the pump into liquid jet, when the oil product is sprayed from the upper shell 1 through the pipeline, the rotating blade 3 is impacted by the liquid and rotates, the rotation of the rotating blade 3 is converted into the rotation of the upper shell 1 after multiple speed changes through the transmission mechanism 4, the upper shell 1 rotates slowly at a speed of 12-25 minutes / revolution, the medium in the storage tank is sprayed and blended in all directions to prevent sedimentation, there is no dead angle in the tank, the blending speed is fast, the blending time is shortened, and the operation cost is saved, when the upper shell 1 rotates, the anti-blocking assembly 6 and the anti-blocking sliding block 5 slide together, the anti-blocking assembly 6 limits the movement of the anti-blocking sliding block 5 in the oil injection port 12, the anti-blocking sliding block 5 scrapes the precipitates on the oil injection port 12, so that the precipitates in the petroleum are prevented from continuously accumulating in the oil injection port 12 and the oil injection port 12 of the injector is prevented from being blocked; the upper shell 1, the lower shell 2 and the rotating blade 3 are made of titanium and titanium alloy materials, so that the seawater corrosion resistance of the nozzle can be improved.The anti-clogging component 6 includes a drive block 61, a horizontal spring 62, a vertical spring 63, a pull rod 64, and a column 65. A rectangular cavity 13 is provided above the fuel injector 12. The drive block 61 is horizontally limited and slidably installed in the rectangular cavity 13, and the anti-clogging slider 5 is vertically limited and slidably installed in the rectangular cavity 13. The width of the drive block 61 is equal to the width of the anti-clogging slider 5 and the width of the fuel injector 12. One end of the horizontal spring 62 is connected to the side wall of the drive block 61, and the other end is connected to the side wall of the rectangular cavity 13. The height of the anti-clogging slider 5 is the same as the height of the fuel injector 12. One end of the vertical spring 63 is connected to the end face of the anti-clogging slider 5, and the other end is connected to the upper wall of the rectangular cavity 13. The lower end face of the drive block 61 is in contact with the upper end face of the anti-clogging slider 5, and the lower end of the drive block 61 is in contact with the anti-clogging slider 5. Each slider 5 has a sliding inclined surface 612 with the same inclination angle at its upper end. The anti-blocking slider 5 has a sliding groove 51. A cylindrical rod 66 is fixedly installed on the side wall of the drive block 61. The cylindrical rod 66 slides with the sliding groove 51 and extends into the upper housing 1. The column 65 is fixedly installed on the transmission mechanism 4 and its end is located on one side of the oil injection port 12. The pull rod 64 is fixedly installed at the end of the column 65. The pull rod 64 is made of elastic metal alloy material and its end is set in a hook shape. When the upper housing 1 rotates, the end of the pull rod 64 slides with the cylindrical rod 66. When the anti-blocking component 6 is not engaged with the anti-blocking slider 5, the bottom of the anti-blocking slider 5 is flush with the upper end face of the oil injection port 12. Both the drive block 61 and the anti-blocking slider 5 are located in the rectangular cavity. Within 13, the oil is not affected from being sprayed out of the injector 12. When the upper housing 1 starts to rotate, the cylindrical rod 66 and the pull rod 64 slide together. The cylindrical rod 66 enters the hook shape at the end of the pull rod 64. During the continuous rotation of the upper housing 1, under the limiting action of the pull rod 64, the cylindrical rod 66 is horizontally pulled by the pull rod 64 in the sliding groove 51, while the drive block 61 moves horizontally within the rectangular cavity 13. The horizontal spring 62 is stretched, and the pull rod 64 undergoes elastic deformation. Since the lower end face of the drive block 61 is in contact with the upper end face of the anti-blocking slider 5, and there is a sliding inclined surface 612 with the same inclination angle at the contact point, when the drive block 61 moves horizontally, the sliding inclined surface 612 of the drive block 61 and the sliding surface of the anti-blocking slider 5 are in contact. When the inclined plane 612 slides relative to the anti-clogging slider 5, the slider 5 moves vertically downwards from the rectangular cavity 13 into the fuel injector 12. The vertical spring 63 is stretched. When the lower end face of the anti-clogging slider 5 is in contact with the bottom of the fuel injector 12, the pull rod 64 disengages from the cylindrical rod 66 during the continuous rotation of the upper housing 1. The pull rod 64 returns to its original position, the horizontal spring 62 and the vertical spring 63 contract, and the drive block 61 and the anti-clogging slider 5 return to the rectangular cavity 13 to complete the reset. During the rotation of the upper housing 1, the engagement of the pull rod 64 and the cylindrical rod 66 enables the anti-clogging slider 5 to automatically scrape and clean the inside of the fuel injector 12, preventing the accumulation of precipitates in the oil and clogging the fuel injector 12. At the same time, no additional power unit is required, reducing the frequency of equipment inspection and maintenance.

[0038] As one embodiment of the present invention, refer to Figures 1 to 8Four oil injection ports 12 are circumferentially arranged on the upper shell 1, the four oil injection ports 12 are located in the same plane, the included angle between the two oil injection ports 12 is 90°, the anti-blocking slider 5 and the anti-blocking assembly 6 are installed in the four oil injection ports 12, the axis of the stand column 65 coincides with the axis of the upper shell 1, the intermittent cam 68 is arranged at the end of the stand column 65, the intermittent cam 68 is fixedly connected with the inside of the upper shell 1, the end of the intermittent cam 68 is in sliding fit with the end of the pull rod 64, when the anti-blocking slider 5 in the oil injection port 12 completes the scraping and cleaning, the pull rod 64 is disengaged from the cylindrical rod 66, the upper shell 1 continues to rotate, the pull rod 64 is in sliding fit with the cylindrical rod 66 of another oil injection port 12, so that the anti-blocking slider 5 scrapes and cleans the oil injection port 12, the intermittent cam 68 rotates with the upper shell 1, the intermittent cam 68 is in rotating fit with the propeller blade 3 through the speed reduction gear, the cooperation between the intermittent cam 68 and the end of the pull rod 64 drives the pull rod 64 to reciprocate at the end of the stand column 65 when the intermittent cam 68 rotates, the pull rod 64 is in sliding fit with the cylindrical rod 66 when moving towards the oil injection port 12, the pull rod 64 is not in contact with the cylindrical rod 66 when moving away from the oil injection port 12, the intermittent scraping and cleaning of each oil injection port 12 is realized during the continuous rotation of the upper shell 1, the oil injection port 12 is prevented from being blocked by the oil precipitate, and the efficiency of the rotary injector is not affected.The oil injection port 12 is provided with a limiting groove 14 on one side, and the limiting groove 14 is located in the upper shell 1. The anti-blocking sliding block 5 is provided with a clamping groove 52. The clamping groove 52 is located on one side of the limiting groove 14. A rotating rod 15 is rotatably installed in the limiting groove 14. A clamping plate 16 is fixedly installed at the upper end of the rotating rod 15. The clamping plate 16 is in sliding fit with the clamping groove 52. A stress plate 17 is fixedly installed at the lower end of the rotating rod 15. The stress plate 17 extends to the outside of the limiting groove 14. A torsional spring 18 is sleeved on the rotating rod 15. The torsional spring 18 is located between the clamping plate 16 and the stress plate 17. The end of the torsional spring 18 abuts against the limiting groove 14. A pushing rod 67 is fixedly installed on the stand 65. The pushing rod 67 is located below the pull rod 64. There is a set angle between the pushing rod 67 and the pull rod 64. The pushing rod 67 is in sliding fit with the stress plate 17 when the upper shell 1 rotates. The clamping plate 16 is located in the clamping groove 52 when the pull rod 64 is not yet matched with the cylindrical rod 66. At this time, the clamping plate 16 limits the vertical movement of the anti-blocking sliding block 5. The angle between the pushing rod 67 and the pull rod 64 is set to 30°. The cylindrical rod 66 is located above the clamping groove 52. When the upper shell 1 rotates to make one cylindrical rod 66 located on one side of the pull rod 64, the pushing rod 67 abuts against the stress plate 17 when the pull rod 64 is not yet matched with the cylindrical rod 66. The pushing rod 67 pushes the stress plate 17 to make the rotating rod 15 rotate when the upper shell 1 continuously rotates. The clamping plate 16 rotates to leave the clamping groove 52 at the same time. The end of the torsional spring 18 abuts against the side wall of the limiting groove 14 and elastically deforms. The clamping plate 16 abuts against the side wall of the anti-blocking sliding block 5. At this time, the clamping plate 16 cannot limit the vertical movement of the anti-blocking sliding block 5. The pull rod 64 is matched with the cylindrical rod 66. The pushing rod 67 is separated from the stress plate 17. The movement of the driving block 61 makes the anti-blocking sliding block 5 vertically move in the oil injection port 12. The clamping plate 16 returns to the clamping groove 52 under the deformation force of the torsional spring 18 after the driving block 61 and the anti-blocking sliding block 5 reset. The clamping plate 16 limits the vertical movement of the anti-blocking sliding block 5 to avoid the anti-blocking sliding block 5 from shaking under the impact of liquid when the cleaning work is not performed. The impact between mechanisms is reduced to ensure the normal operation of the anti-blocking assembly 6. Two collecting grooves 19 are symmetrically arranged in the oil injection port 12. The lengths of the two collecting grooves 19 are equal to the length of the oil injection port 12. The collecting groove 19 is provided with an inclined slope as a whole. The inclined slope is directed to the opening of the oil injection port 12. The cross-sectional shape of the collecting groove 19 is set to be trapezoidal. The petroleum precipitate on the side wall of the oil injection port 12 is scraped off by the anti-blocking sliding block 5. The precipitate falls into the bottom of the collecting groove 19 along the trapezoidal inclined side wall of the collecting groove 19. The inclined slope facilitates the flow of the precipitate to the opening of the oil injection port 12. The precipitate is prevented from accumulating below both ends of the anti-blocking sliding block 5 in the process of cleaning the precipitate, which causes the anti-blocking sliding block 5 to fail to completely close the oil injection port 12 and affects the cleaning effect of the oil injection port 12. Part of the precipitate in the collecting groove 19 can be taken out of the oil injection port 12 under the impact of the petroleum liquid.The bottom of the driving block 61 is symmetrically provided with two scraping plates 611 which are rotatably limited and pass through and slide with the anti-blocking sliding block 5, the ends of the two scraping plates 611 extend to the bottom of the collecting groove 19, the bottom of the anti-blocking sliding block 5 is symmetrically provided with trapezoidal protrusions 53 which are in contact with the side walls of the scraping plates 611, the trapezoidal protrusions 53 have the same shape as the cross section of the collecting groove 19, when the anti-blocking sliding block 5 has not moved, one end surface of the scraping plate 611 is flush with the outer end surface of the oil injection port 12, the cross section shape of the trapezoidal protrusion 53 and the cross section shape of the scraping plate 611 are combined to be the same as the cross section shape of the collecting groove 19, the trapezoidal protrusion 53 can enhance the cleaning effect of the anti-blocking sliding block 5 on the inside of the oil injection port 12, when the driving block 61 moves horizontally, the scraping plate 611 moves with the driving block 61, the scraping plate 611 first moves towards the inside of the upper shell 1, when the driving block 61 resets, the scraping plate 611 moves towards the outside of the oil injection port 12 again, the scraping plate 611 moves while being rotatably limited to adapt to the inclined slope of the collecting groove 19, the scraping plate 611 can push out the precipitates in the collecting groove 19 which are not washed out by the oil to the outside of the oil injection port 12, thereby improving the cleaning effect of the anti-blocking sliding block 5; the driving block 61 is slidably provided with a blocking block 7, the bottom of the blocking block 7 is in contact with the upper end surface of the anti-blocking sliding block 5, the width of the blocking block 7 is equal to the width of the sliding groove 51, the blocking block 7 is fixedly provided above with a thrust spring 71, one end of the thrust spring 71 is fixedly connected with the driving block 61, when the driving block 61 moves relative to the anti-blocking sliding block 5, the anti-blocking sliding block 5 moves downwards, the end of the cylindrical rod 66 will be separated from the sliding groove 51, at this time, the thrust spring 71 is elongated to push the blocking block 7 into the sliding groove 51, the blocking block 7 blocks the sliding groove 51, thereby avoiding that when the anti-blocking sliding block 5 is cleaning, the oil enters the cooperation position of the driving block 61 and the anti-blocking sliding block 5 through the sliding groove 51 to disturb the anti-blocking sliding block 5, thereby ensuring the normal work of the anti-blocking assembly 6 and the anti-blocking sliding block 5; the thickness of the scraping plate 611 is half of the thickness of the collecting groove 19, the scraping plate 611 can completely clean the precipitates which fall along the trapezoidal inclined side wall of the collecting groove 19 to the bottom of the collecting groove 19, the scraping plate 611 is provided in the shape of "L" and the protruding direction is towards the inside of the upper shell 1, the length of the end of the scraping plate 611 is half of the length of the collecting groove 19, when the scraping plate 611 in the shape of "L" reciprocally moves in the collecting groove 19, it can push the precipitates in the collecting groove 19 into the upper shell 1 or push them out of the oil injection port 12, thereby further enhancing the cleaning effect of the anti-blocking sliding block 5.

[0039] Working principle: when the upper shell 1 rotates, the cylindrical rod 66 is located on one side of the pull rod 64, and the pull rod 64 and the cylindrical rod 66 are not matched, the push rod 67 is in abutment with the stress plate 17, and the upper shell 1 continues to rotate, the push rod 67 pushes the stress plate 17, so that the rotating rod 15 rotates, the clamping plate 16 simultaneously rotates to leave the clamping groove 52, the end of the torsional spring 18 is in abutment with the side wall of the limiting groove 14 and elastically deforms, the clamping plate 16 is in abutment with the side wall of the anti-blocking sliding block 5, at this time, the clamping plate 16 cannot limit the vertical movement of the anti-blocking sliding block 5, the push rod 67 is separated from the contact with the stress plate 17, the pull rod 64 is matched with the cylindrical rod 66, the cylindrical rod 66 enters the inside of the hook-shaped end of the pull rod 64, and in the process of continuous rotation of the upper shell 1, under the limiting action of the pull rod 64, the cylindrical rod 66 is horizontally pulled by the pull rod 64 in the sliding groove 51, and the driving block 61 moves horizontally in the rectangular cavity 13, the horizontal spring 62 is elongated, and the pull rod 64 elastically deforms, since the lower end surface of the driving block 61 is in abutment with the upper end surface of the anti-blocking sliding block 5, and there is a sliding inclined surface 612 with the same inclination angle at the abutment position, therefore, when the driving block 61 moves horizontally, the sliding inclined surface 612 of the driving block 61 and the sliding inclined surface 612 of the anti-blocking sliding block 5 slide relatively, the anti-blocking sliding block 5 is limited to move vertically downward, the end of the cylindrical rod 66 is separated from the sliding groove 51, the thrust spring 71 is elongated, and pushes the blocking block 7 into the sliding groove 51, the blocking block 7 blocks the sliding groove 51, moves from the rectangular cavity 13 to the oil injection port 12, and the vertical spring 63 is elongated, when the lower end surface of the anti-blocking sliding block 5 is in abutment with the bottom of the oil injection port 12, the anti-blocking sliding block 5 completes the cleaning of the oil injection port 12, the pull rod 64 is separated from the cylindrical rod 66 in the process of continuous rotation of the upper shell 1, the pull rod 64 returns to the original state, the horizontal spring 62 and the vertical spring 63 contract, the driving block 61 and the anti-blocking sliding block 5 return to the rectangular cavity 13 to complete the reset, and at the same time, the scraping plate 611 moves to push out the precipitates in the collecting groove 19 from the oil injection port 12, the clamping plate 16 is reset in the clamping groove 52 under the deformation force of the torsional spring 18, and the vertical movement of the anti-blocking sliding block 5 is limited.

[0040] The above describes one specific embodiment of the application in detail with reference to the drawings, but the application is not limited to the above described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and ideas of the application, and should still fall within the protection scope of the application.

Claims

1. A clog-resistant and wear-resistant nozzle for bulk material conveying pipelines resistant to seawater corrosion, characterized in that, The utility model provides a rotatable anti -blocking device for liquid conveying pipe, including upper shell (1), lower shell (2), propeller blade (3), transmission mechanism (4), anti -blocking slider (5) and anti -blocking component (6), upper shell (1), lower shell (2) and propeller blade (3) adopt titanium and titanium alloy material quality, lower shell (2) is fixedly connected with conveying pipeline through flange, upper shell (1) bottom is rotatably connected with lower shell (2), upper shell (1) side wall is provided with oil injection port (12), oil injection port (12) is communicated with upper shell (1) inside, transmission mechanism (4) is fixedly installed in lower shell (2) and is connected with upper shell (1), propeller blade (3) rotatably installs on transmission mechanism (4), and is located at lower shell (2) and conveying pipeline junction, anti -blocking slider (5) is slidably installed in oil injection port (12) inside, anti -blocking component (6) is installed in upper shell (1), propeller blade (3) will liquid pressure be converted into the rotary power of upper shell (1) through transmission mechanism (4), and upper shell (1) is prevented blocking component (6) drive anti -blocking slider (5) to clean oil injection port (12) when rotating.

2. The anti-clogging and wear-resistant nozzle for bulk material conveying pipelines resistant to seawater corrosion according to claim 1, characterized in that, The anti -blocking component (6) includes a drive block (61), a horizontal spring (62), a vertical spring (63), a pull rod (64), and a stand (65). A rectangular cavity (13) is formed above the oil injection port (12). The drive block (61) is horizontally limited and slidably installed in the rectangular cavity (13). The anti -blocking slider (5) is vertically limited and slidably installed in the rectangular cavity (13). The width of the drive block (61) is equal to the width of the anti -blocking slider (5) and the width of the oil injection port (12). One end of the horizontal spring (62) is connected to the side wall of the drive block (61), and the other end is connected to the side wall of the rectangular cavity (13). The height of the anti -blocking slider (5) is the same as the height of the oil injection port (12). One end of the vertical spring (63) is connected to the end face of the anti -blocking slider (5), and the other end is connected to the upper wall of the rectangular cavity (13). The lower end face of the drive block (61) is in contact with the upper end face of the anti -blocking slider (5). The lower end of the drive block (61) and the upper end of the anti -blocking slider (5) are both provided with sliding inclined surfaces (612) with the same inclination angle. A sliding groove (51) is formed on the anti -blocking slider (5). A cylindrical rod (66) is fixedly installed on the side wall of the drive block (61). The cylindrical rod (66) is in sliding cooperation with the sliding groove (51) and extends into the interior of the upper shell (1). The stand (65) is fixedly installed on the transmission mechanism (4) and has an end portion located on one side of the oil injection port (12). The pull rod (64) is fixedly installed on the end portion of the stand (65). The pull rod (64) is made of elastic metal alloy material. The end portion of the pull rod (64) is in the shape of a hook. When the upper shell (1) rotates, the end portion of the pull rod (64) is in sliding cooperation with the cylindrical rod (66).

3. The anti-clogging and wear-resistant nozzle for bulk material conveying pipelines resistant to seawater corrosion according to claim 2, characterized in that, The upper shell (1) is provided with a plurality of oil injection ports (12) on the circumference, the included angle between each two of the plurality of oil injection ports (12) is the same, the oil injection port (12) is provided with an anti-blocking sliding block (5) and an anti-blocking assembly (6), the axis of the column (65) coincides with the axis of the upper shell (1), the end of the column (65) is provided with an intermittent cam (68), the intermittent cam (68) is fixedly connected with the inside of the upper shell (1), the end of the intermittent cam (68) is in sliding fit with the end of the pull rod (64), and the intermittent cam (68) is in rotational fit with the propeller blade (3) through a speed reduction gear.

4. The anti-clogging and wear-resistant nozzle for bulk material conveying pipelines resistant to seawater corrosion according to claim 3, characterized in that, The oil injection port (12) is provided with a limiting groove (14) on one side, and the limiting groove (14) is located in the upper shell (1), the anti-blocking sliding block (5) is provided with a clamping groove (52), the clamping groove (52) is located on one side of the limiting groove (14), the limiting groove (14) is rotatably installed with a rotating rod (15), the upper end of the rotating rod (15) is fixedly installed with a clamping plate (16), the clamping plate (16) is in sliding fit with the clamping groove (52), the lower end of the rotating rod (15) is fixedly installed with a stress plate (17), the stress plate (17) extends to the outside of the limiting groove (14), the rotating rod (15) is provided with a torsional spring (18), the torsional spring (18) is located between the clamping plate (16) and the stress plate (17), the end of the torsional spring (18) is in abutment with the limiting groove (14), the column (65) is fixedly installed with a pushing rod (67), the pushing rod (67) is located below the pull rod (64), and there is a set angle between the pushing rod (67) and the pull rod (64), and the upper shell (1) is in sliding fit with the stress plate (17) when rotating.

5. A wear resistant, anti-clogging, anti-seawater-corrosion spout for bulk material handling pipelines according to claim 4, characterized in that, The oil injection port (12) is provided with two collecting grooves (19) symmetrically, the length of the two collecting grooves (19) is equal to that of the oil injection port (12), the collecting groove (19) is provided with an inclined slope, the inclined slope is towards the opening of the oil injection port (12), and the cross-sectional shape of the collecting groove (19) is trapezoidal.

6. A wear resistant, anti-clogging, anti-seawater-corrosion spout for bulk material handling pipes according to claim 5, characterized in that, The bottom of the driving block (61) is provided with two scraping plates (611) which are symmetrically and rotatably limited, the two scraping plates (611) pass through the anti-blocking sliding block (5) and are in sliding fit with the anti-blocking sliding block (5), the ends of the two scraping plates (611) extend to the bottom of the collecting groove (19), the bottom of the anti-blocking sliding block (5) is provided with a trapezoidal protrusion (53) which is in abutment with the side wall of the scraping plate (611), and the shape of the trapezoidal protrusion (53) is the same as the cross-sectional shape of the collecting groove (19).

7. A wear resistant, anti-clogging, anti-seawater-corrosion spout for bulk material handling pipelines according to claim 6, characterized in that, The driving block (61) is provided with a blocking block (7) which is in sliding fit, the bottom of the blocking block (7) is in abutment with the upper end surface of the anti-blocking sliding block (5), the width of the blocking block (7) is equal to that of the sliding groove (51), the upper end of the blocking block (7) is fixedly installed with a thrust spring (71), and one end of the thrust spring (71) is fixedly connected with the driving block (61).

8. The anti-clogging and wear-resistant nozzle for a bulk material conveying pipeline resistant to seawater corrosion according to claim 6, characterized in that, The thickness of the scraping plate (611) is half of the thickness of the collecting groove (19), the scraping plate (611) is arranged in an "L" shape, and the convex direction is towards the inside of the upper shell (1), and the length of the end of the scraping plate (611) is half of the length of the collecting groove (19).

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