阅读说明：本技术 管道空泡清洗设备 (Pipeline vacuole cleaning equipment ) 是由 刘冰 吴震 刘友乐 王新龙 侯俊凯 王华健 陈金钢 孙伟华 李栋 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种管道空泡清洗设备,包括：第一供水管、安装套管和空泡发生器,所述空泡发生器包括安装主轴和多个导流片,所述导流片固定在所述安装主轴上,沿水流流动方向,在所述导流片的尾部设置有缺口结构；所述安装主轴设置在所述安装套管的一端部,所述第一供水管与所述安装套管的另一端部连接。通过采用空泡发生器对石油管道内壁的结垢进行清洗,空泡发生器利用流动的水流产生空泡,空泡在石油管道内发生溃灭,利用空泡溃灭产生的冲击力来彻底的清理掉管壁上的结垢,以提高石油管道的清洗效率并优化清洗效果。(The invention discloses a pipeline vacuole cleaning device, which comprises: the device comprises a first water supply pipe, a mounting sleeve and a cavitation generator, wherein the cavitation generator comprises a mounting main shaft and a plurality of flow deflectors, the flow deflectors are fixed on the mounting main shaft, and a notch structure is arranged at the tail part of each flow deflector along the flow direction of water flow; the installation main shaft is arranged at one end of the installation sleeve, and the first water supply pipe is connected with the other end of the installation sleeve. The scale on the inner wall of the petroleum pipeline is cleaned by adopting the cavitation generator, the cavitation generator generates cavitation by utilizing flowing water flow, the cavitation is collapsed in the petroleum pipeline, and the impact force generated by collapse of the cavitation is utilized to thoroughly clean the scale on the pipe wall so as to improve the cleaning efficiency of the petroleum pipeline and optimize the cleaning effect.)

1. A pipe cavitation cleaning apparatus, comprising: the device comprises a first water supply pipe, a mounting sleeve and a cavitation generator, wherein the cavitation generator comprises a mounting main shaft and a plurality of flow deflectors, the flow deflectors are fixed on the mounting main shaft, and a notch structure is arranged at the tail part of each flow deflector along the flow direction of water flow; the installation main shaft is arranged at one end of the installation sleeve, and the first water supply pipe is connected with the other end of the installation sleeve.

2. The pipe cavitation cleaning device of claim 1, wherein the notch feature is partially exposed outside the port of the installation sleeve.

3. Pipeline cavitation cleaning device according to claim 2, characterized in that, in the direction of the water flow, the front side wall of the notch structure extends curved towards the rear side, and the rear side wall of the notch structure extends curved towards the front side.

4. The pipe cavitation cleaning device of claim 3, wherein a height dimension of a front side wall of the notch structure is greater than a height dimension of a rear side wall of the notch structure.

5. Pipeline cavitation cleaning device in accordance with claim 1, characterized in that the guide vanes are arranged obliquely with respect to the axis of the mounting spindle.

6. The pipe cavitation cleaning apparatus of claim 1, further comprising a walking mechanism; the running mechanism comprises a wheel seat and a rubber wheel, the rubber wheel is rotatably arranged on the wheel seat, and the wheel seat is arranged on the outer pipe wall of the installation sleeve; at least two running mechanisms are uniformly distributed on the outer pipe wall of the mounting sleeve.

7. The pipeline vacuole cleaning equipment as claimed in claim 6, wherein the traveling mechanism further comprises a power driving module, the power driving module comprises a second water supply pipe, a water wheel and a reduction gearbox, the second water supply pipe is fixed on the outer pipe wall of the installation sleeve, the water wheel is located in the second water supply pipe, a rotating shaft of the water wheel is connected with a power input shaft of the reduction gearbox through a flexible shaft, the reduction gearbox is fixed on one side of the wheel seat, and a power output shaft of the reduction gearbox is in driving connection with a wheel shaft of the rubber wheel.

8. The pipe cavitation cleaning device of claim 7, wherein the mounting sleeve has a first pipe section and a second pipe section, the pipe diameter of the first pipe section is smaller than that of the second pipe section, and an inclined connecting surface is formed at the joint of the first pipe section and the second pipe section; the second water supply pipe is mounted on the first pipe section, and the wheel seat is mounted on the second pipe section.

9. The pipe cavitation cleaning device of claim 8, wherein the inclined connecting surface is provided with a jet water inlet, the second water supply pipe has a water inlet pipe section and a water outlet pipe section which are connected together, and the water outlet pipe section is of a conical pipe structure and is connected with the jet water inlet in a sealing manner.

10. The pipe cavity cleaning device according to claim 7, wherein a bracket is arranged in the second water supply pipe, the bracket is fixed on the inner pipe wall of the second water supply pipe, and the rotating shaft of the water wheel is rotatably mounted on the bracket; and a through hole is formed in the pipe wall of the second water supply pipe, and the flexible shaft penetrates through the through hole.

Technical Field

The invention relates to the technical field of machinery, in particular to a pipeline cavity cleaning device.

Background

At present, all need use the petroleum pipeline at oil development and oil transportation, the petroleum pipeline is metal pipeline usually after long-time the use, can form thicker structure on the pipe wall, influences the normal transportation of oil, consequently, the petroleum pipeline need regularly clear up. Chinese patent No. 201821468308.9 discloses a pipeline cleaning device, which mainly uses a propulsion motor to drive a rotating rod to enter a petroleum pipeline and cleans the petroleum pipeline through a brush. Because the scale deposit viscosity in the petroleum pipeline is big, in the cleaning process, the brush can clear up the dirt on pipe wall top layer, but, hardly clear up the rigid scale deposit layer that forms on the pipe wall, lead to the cleaning performance of petroleum pipeline relatively poor.

Disclosure of Invention

The invention provides a pipeline cavitation cleaning device, which generates cavitation bubbles in a petroleum pipeline through a cavitation bubble generator, and thoroughly cleans scales on the pipe wall by using impact force generated by cavitation bubble collapse so as to improve the cleaning efficiency of the petroleum pipeline and optimize the cleaning effect.

The invention provides a pipeline vacuole cleaning device, which comprises: the device comprises a first water supply pipe, a mounting sleeve and a cavitation generator, wherein the cavitation generator comprises a mounting main shaft and a plurality of flow deflectors, the flow deflectors are fixed on the mounting main shaft, and a notch structure is arranged at the tail part of each flow deflector along the flow direction of water flow; the installation main shaft is arranged at one end of the installation sleeve, and the first water supply pipe is connected with the other end of the installation sleeve.

Further, the notch structure is partially exposed outside the port of the mounting sleeve.

Further, along the water flow direction, the front side wall of the notch structure extends towards the rear side in a bending way, and the rear side wall of the notch structure extends towards the front side in a bending way.

Further, the height dimension of the front side wall of the notch structure is larger than the height dimension of the rear side wall of the notch structure.

Further, the guide vanes are arranged obliquely with respect to the axis of the mounting spindle.

Furthermore, the device also comprises a walking mechanism; the running mechanism comprises a wheel seat and a rubber wheel, the rubber wheel is rotatably arranged on the wheel seat, and the wheel seat is arranged on the outer pipe wall of the installation sleeve; at least two running mechanisms are uniformly distributed on the outer pipe wall of the mounting sleeve.

Furthermore, the running mechanism further comprises a power driving module, the power driving module comprises a second water supply pipe, a water wheel and a reduction gearbox, the second water supply pipe is fixed on the outer pipe wall of the installation sleeve, the water wheel is located in the second water supply pipe, a rotating shaft of the water wheel is connected with a power input shaft of the reduction gearbox through a flexible shaft, the reduction gearbox is fixed on one side of the wheel seat, and a power output shaft of the reduction gearbox is in driving connection with a wheel shaft of the rubber wheel.

Furthermore, the mounting sleeve is provided with a first pipe section and a second pipe section, the pipe diameter of the first pipe section is smaller than that of the second pipe section, and an inclined connecting surface is formed at the connecting position of the first pipe section and the second pipe section; the second water supply pipe is mounted on the first pipe section, and the wheel seat is mounted on the second pipe section.

Furthermore, a jet water inlet is formed in the inclined connecting surface, the second water supply pipe is provided with a water inlet pipe section and a water outlet pipe section which are connected together, and the water outlet pipe section is of a conical pipe structure and is in sealing connection with the jet water inlet.

Furthermore, a bracket is arranged in the second water supply pipe, the bracket is fixed on the inner pipe wall of the second water supply pipe, and a rotating shaft of the water wheel is rotatably arranged on the bracket; and a through hole is formed in the pipe wall of the second water supply pipe, and the flexible shaft penetrates through the through hole.

The scale on the inner wall of the petroleum pipeline is cleaned by adopting the cavitation generator, the cavitation generator generates cavitation by utilizing flowing water flow, the cavitation is collapsed in the petroleum pipeline, and the impact force generated by collapse of the cavitation is utilized to thoroughly clean the scale on the pipe wall so as to improve the cleaning efficiency of the petroleum pipeline and optimize the cleaning effect.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the cavitation cleaning device for pipelines according to the present invention;

FIG. 2 is a schematic view of the direction A in FIG. 1;

FIG. 3 is a schematic structural diagram of a cavitation generator in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second embodiment of the pipe cavity cleaning device of the present invention.

Detailed Description

As shown in fig. 1-3, the present embodiment of the present invention provides a pipe cavitation cleaning device, which includes: the device comprises a first water supply pipe 1, a mounting sleeve 2 and a cavitation generator 3, wherein the cavitation generator 3 comprises a mounting main shaft 31 and a plurality of flow deflectors 32, the flow deflectors 32 are fixed on the mounting main shaft 31, and a notch structure 33 is arranged at the tail of each flow deflector 32 along the flow direction of water flow; the mounting spindle 31 is provided at one end of the mounting sleeve 2, and the first water supply pipe 1 is connected to the other end of the mounting sleeve 2.

In actual use, the installation casing 2 is inserted into an oil pipeline. The first water supply pipe 1 is connected with an external water supply device, and water flow with certain pressure is provided through the external water supply device and enters the installation sleeve 2 through the first water supply pipe 1 to continuously flow. The water flow in the installation sleeve 2 finally flows to the cavitation generator 3, and the water flow is guided by the guide vane 32 and flows along the surface of the guide vane 32. When the water flows to the notch structure 33, because the flow rate of the water is fast and an instantaneous pressure loss is generated at the notch structure 33, under the action of low pressure in the notch structure 33 area, and when the static pressure in the liquid suddenly drops to be lower than the vapor pressure of the liquid at the same temperature, a large amount of vacuoles are formed in the liquid, so that the water flows through the notch structure 33 area to form a large amount of vacuoles. The cavitation bubbles leave the gap structure 33 as the water flow continues, and at this time, the cavitation bubble group enters a region of higher pressure, so that the external pressure of the cavitation bubbles is recovered, and the cavitation bubbles will collapse due to the pressure recovery. The collapse of the cavitation bubbles converts the potential energy stored in the bubbles into fluid in a smaller volume, so that fluid shock waves are formed in the water flow. And since the cavitation generator 3 is installed at the water outlet end position of the installation sleeve 2, the cavitation generated through the notch structure 33 will be output to the outside of the installation sleeve 2. The area where the cavitation collapses is in the petroleum pipeline, and after the cavitation collapses, instant high-pressure jet flow is generated in liquid to cause strong vibration of a liquid medium, so that the cavitation collapses can be utilized to clean scales on the inner wall of the petroleum pipeline.

Preferably, in order to effectively avoid cavitation erosion of the mounting sleeve 2 caused by cavitation, the notch structure 33 is partially exposed outside the port of the mounting sleeve 2. Like this, rivers can be quick follow rivers outflow via the produced cavitation of breach structure 33 the installation sleeve for the cavitation takes place to burst in the outside of installation sleeve 2, in order to ensure the phenomenon that the cavitation bursts can not take place in the installation sleeve, realizes good protection installation sleeve 2.

In order to generate sufficient cavitation bubbles and to enable the cavitation bubbles to be conveyed towards the inner wall direction of the petroleum pipeline, the front side wall 331 of the notch structure 33 extends in a bending way towards the rear side, and the rear side wall 332 of the notch structure 33 extends in a bending way towards the front side along the water flow direction. Specifically, when the water flows to the notch structure 33, the water is guided by the front sidewall 331, and the arc-shaped surface formed in the notch structure 33 by the front sidewall 331 can effectively increase the area of the notch structure 33, so as to better generate negative pressure to obtain more cavitation bubbles. The generated cavitation bubbles are guided by the arc-shaped surface formed by the rear side wall 332 and flow towards the inner wall direction of the petroleum pipeline, so that more cavitation bubbles are broken at the scaling positions on the inner wall of the petroleum pipeline, and the cleaning efficiency is improved. The height of the front side wall 331 of the notch structure 33 is greater than the height of the rear side wall 332 of the notch structure 33, so that more cavitation bubbles can be generated by the higher front side wall 331, and the water resistance generated to the water flow can be reduced while the shorter rear side wall 332 meets the requirement of guiding the cavitation bubbles to flow, so as to guide the water flow carrying the cavitation bubbles to smoothly flow towards the inner wall of the petroleum pipeline.

Further, for uniform distribution of cavitation bubbles, the guide vanes 32 may be arranged obliquely with respect to the axis of the mounting main shaft 31, and a plurality of obliquely arranged guide vanes 32 can guide the water flow to flow in a deflected manner at a high speed. Thus, the water flow output by the cavitation generator 3 will rotate to flow out, and the cavitation bubbles will rotate along with the water flow, so that the cavitation bubbles are uniformly distributed on the inner wall of the petroleum pipeline, and a better cleaning effect is obtained.

In order to facilitate the installation of the cavitation generator 3 in the installation casing 2, a bracket 21 is provided at one end of the installation casing 2, the bracket 21 may be fixed to the inner wall of the second water supply pipe by welding using a plurality of rods, and the installation spindle 31 may be welded to the bracket 21. The bracket 21 can meet the installation requirements of the cavitation generator 3 on one hand, and on the other hand, cannot generate overlarge water resistance to water flow. Preferably, the bracket 21 is welded to the front side of the notch structure 33 to avoid cavitation damage to the bracket 21 from the generated cavitation bubbles.