阅读说明：本技术 一种具有内部防沉积去污结构的污油管 (Dirty oil pipe with inside anti-deposition decontamination structure ) 是由 陆海刚 罗茂林 朱正金 于 2020-11-23 设计创作，主要内容包括：本发明技术方案公开了一种具有内部防沉积去污结构的污油管,包括污油管,所述污油管包括首尾连接的斜管、弯管和竖管；所述斜管中可转动地安装有去污结构；污油流动过程中带动所述去污结构转动,所述去污结构在转动过程中去除沉积在所述斜管内下壁表面的污渍。本发明的具有内部防沉积去污结构的污油管,通过污油管内的去污结构利用污油流动的动能推动叶轮轴及螺旋钢丝旋转,将污油管底部的沉积物卷起,卷起的沉积物进入污油中,继续随着流体运动下行,实现污油管的去污功能。(The invention discloses a dirty oil pipe with an internal anti-deposition decontamination structure, which comprises a dirty oil pipe, wherein the dirty oil pipe comprises an inclined pipe, a bent pipe and a vertical pipe which are connected end to end; a decontamination structure is rotatably arranged in the inclined tube; and the dirty oil drives the decontamination structure to rotate in the flowing process, and the decontamination structure removes stains deposited on the surface of the inner lower wall of the inclined tube in the rotating process. According to the dirty oil pipe with the internal anti-deposition decontamination structure, the decontamination structure in the dirty oil pipe pushes the impeller shaft and the spiral steel wire to rotate by utilizing the flowing kinetic energy of the dirty oil, so that the deposit at the bottom of the dirty oil pipe is rolled up, the rolled deposit enters the dirty oil and continues to move downwards along with the fluid, and the decontamination function of the dirty oil pipe is realized.)

1. A dirty oil pipe with internal anti-deposit decontamination structure, comprising:

the sewage pipe comprises an inclined pipe, a bent pipe and a vertical pipe which are connected end to end;

a decontamination structure is rotatably arranged in the inclined tube;

and the dirty oil drives the decontamination structure to rotate in the flowing process, and the decontamination structure removes stains deposited on the surface of the inner lower wall of the inclined tube in the rotating process.

2. A dirty oil pipe with internal anti-settling decontamination structure as claimed in claim 1, wherein the decontamination structure comprises a spiral wire and an impeller shaft secured thereto, the impeller shaft being rotatably mounted in the dirty oil pipe.

3. The dirty oil pipe with internal anti-deposition dirt removal structure of claim 2, wherein the impeller shaft comprises a rotating shaft and a helical impeller helically arranged along the length of the outer circumference of the rotating shaft.

4. The dirty oil pipe with internal anti-deposition and decontamination structure as claimed in claim 3, wherein the helical impeller is fixed to the helical wire, and an end of the rotating shaft away from the helical wire abuts against the bent pipe.

5. The dirty oil pipe with internal anti-deposition dirt removal structure of claim 4, wherein the helical impeller is consistent with the helical direction and helical distance of the helical wire.

6. The dirty oil pipe with internal anti-settling stain removal structure of claim 4, wherein the cross-sectional diameter dimensions of the helical impeller and the helical wire are less than or equal to the internal diameter of the dirty oil pipe.

7. The dirty oil pipe with internal anti-deposition and decontamination structure as claimed in claim 4, wherein the portion of the pivot abutting the elbow is spherical.

8. The dirty oil pipe with internal anti-deposition and decontamination structure as claimed in claim 4, wherein the portion of the pivot abutting the elbow is conical.

Technical Field

The invention relates to the technical field of marine low-speed high-power diesel engines, in particular to a dirty oil pipe with an internal anti-deposition decontamination structure.

Background

Plugging of dirty oil lines on marine high power diesel engines is a common problem in the lubrication circuit, based on the use characteristics of the oil-for metal-to-metal kinematic pair lubrication. As shown in fig. 1, abrasion occurs when metal moves relatively, and after the lubricant enters a moving part, the metal abrasion particles 2 flow back along with the lubricant due to the viscosity characteristic of the lubricant. The metal particles 2 move in the lubricating oil along the flowing direction of the lubricating oil and slowly precipitate, and after the mechanical equipment runs for a period of time, the deposited metal particles 2 are more and more, and finally the lubricating oil pipeline 1 is blocked.

Therefore, lubricating oil observation windows, flowmeters and other devices are designed to observe normal operation of lubrication in the mechanical lubrication process. The corresponding work such as mechanical excessive abrasion, shutdown maintenance and the like caused by the cut-off of lubricating oil is avoided. And the dirty oil pipeline cleaning work can be regularly carried out according to the mechanical lubrication characteristic.

However, the deposition of metal particles is the root cause of the blockage of the dirty oil pipeline, and the observation of the flow of the dirty oil can only judge whether the flow of the lubricating oil is reduced or blocked, but cannot solve the problem of the deposition of the metal particles in the lubricating oil pipeline. The invention aims at the root cause of the lubricating oil blockage: and depositing metal particles. Through stirring the lubricating oil flow state in the pipeline, ensure that particulate matter in the lubricating oil can flow along with the lubricating oil and get into dirty oil storehouse with the state that does not precipitate.

Disclosure of Invention

The invention solves the technical problem that the existing dirty oil pipes are all of horizontal structures and are easy to block metal particles when coming out of the inner wall and the lower wall.

In order to solve the above technical problem, the technical solution of the present invention provides a dirty oil pipe with an internal anti-deposition and decontamination structure, wherein the dirty oil pipe comprises:

the sewage pipe comprises an inclined pipe, a bent pipe and a vertical pipe which are connected end to end;

a decontamination structure is rotatably arranged in the inclined tube;

and the dirty oil drives the decontamination structure to rotate in the flowing process, and the decontamination structure removes stains deposited on the surface of the inner lower wall of the inclined tube in the rotating process.

Optionally, the decontamination structure comprises a spiral wire and an impeller shaft secured thereto, the impeller shaft being rotatably mounted in the dirty oil pipe.

Optionally, the impeller shaft includes a rotating shaft and a helical impeller spirally disposed in a length direction of an outer circle of the rotating shaft.

Optionally, the spiral impeller is fixed to the spiral steel wire, and one end of the rotating shaft, which is far away from the spiral steel wire, abuts against the bent pipe.

Optionally, the spiral impeller and the spiral direction and the spiral distance of the spiral steel wire are kept consistent.

Optionally, the cross-sectional diameter of the spiral impeller and the spiral wire is smaller than or equal to the inner diameter of the dirty oil pipe.

Optionally, a part of the structure of the rotating shaft abutting against the elbow is spherical.

Optionally, a part of the structure of the rotating shaft abutting against the elbow pipe is conical.

The technical scheme of the invention has the beneficial effects that:

according to the dirty oil pipe with the internal anti-deposition decontamination structure, the decontamination structure in the dirty oil pipe pushes the impeller shaft and the spiral steel wire to rotate by utilizing the flowing kinetic energy of the dirty oil, so that the deposit at the bottom of the dirty oil pipe is rolled up, the rolled deposit enters the dirty oil and continues to move downwards along with the fluid, and the decontamination function of the dirty oil pipe is realized.

Drawings

FIG. 1 is a schematic structural view of a dirty oil pipe of the prior art in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a dirty oil pipe with an internal anti-settling decontamination structure in an embodiment of the present invention;

fig. 3 is a schematic view of a soil release structure in an embodiment of the present invention.

The specific implementation mode is as follows:

the invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Referring to fig. 2 and 3, a dirty oil pipe with an internal anti-deposition decontamination structure is shown according to an embodiment, wherein the dirty oil pipe comprises an inclined pipe 11, an elbow pipe 12 and a vertical pipe 13 which are connected end to end; the cleaning structure 4 is rotatably arranged in the inclined tube 11; the dirty oil drives the decontamination structure 4 to rotate in the flowing process, and the decontamination structure 4 removes stains deposited on the surface of the inner lower wall of the inclined tube 11 in the rotating process.

In this embodiment, the decontamination structure 4 includes a spiral steel wire 41 and an impeller shaft 42 fixed thereto, the impeller shaft 42 is rotatably installed in the dirty oil pipe, the impeller shaft 42 includes a rotating shaft 421 and a spiral impeller 422 spirally disposed in the length direction of the outer circle of the rotating shaft 421, the spiral impeller 422 is fixed to the spiral steel wire 41, and one end of the rotating shaft 421 away from the spiral steel wire 41 abuts against the bent pipe 12.

In this embodiment, the spiral direction and the spiral distance between the spiral impeller 422 and the spiral steel wire 41 are kept consistent, and the diameter of the transverse cross section of the spiral impeller 422 and the spiral steel wire 41 is smaller than or equal to the inner diameter of the dirty oil pipe.

In this embodiment, a portion of the rotating shaft 421 abutting against the elbow 12 is spherical, and a portion of the rotating shaft 421 abutting against the elbow 12 is conical.

The features and functions of the present invention will be further understood from the following description.

The dirty oil pipe with inside antifouling decontamination structure of this embodiment is arranged in marine low-speed diesel engine lubricating oil return circuit, solves the metal particle sediment problem in the lubricating oil return oil, realizes preventing the function of deposiing the decontamination in the dirty oil pipe. The prior dirty oil pipe generally has the conditions of reduced return flow of lubricating oil and poor lubricating effect. It is common to find deposits of metal particles inside the lines after the inspection of the lube line, which in the return line is particularly concentrated in the cross-line and at the bend.

Therefore, the embodiment provides the dirty oil pipe device with the internal anti-deposition decontamination structure, the device can well remove the particle deposits in the dirty oil pipe, and the risk of blockage of the interior of the dirty oil pipe due to the deposits is solved. The dirty oil pipe of this embodiment utilizes the kinetic energy that dirty oil flowed to promote impeller shaft and spiral steel wire rotation, curls up the deposit of dirty oil pipe bottom. The rolled sediment enters the dirty oil and continues to move downwards along with the fluid, so that the decontamination function of the dirty oil pipe is realized.

Because in the lubricating oil return circuit, the metal particulate matter is few at lubricated position anterior segment, can not appear blockking up, nevertheless lubricate metal motion pair position after, the metal particulate matter that the motion pair produced can be carried by lubricating oil, begins to flow along with lubricating oil. Obviously, the metal particles are insoluble in grease, and when the flow direction of the lubricating oil is the gravity direction (as shown in fig. 1), the lubricating oil and the metal particles move along with the flow direction except a small amount of particles adsorbed on the pipe wall due to the self weight of the metal particles. When the lubricating oil flow direction is different from the gravity direction, the metal particles in the lubricating oil can be influenced by the gravity while flowing to cause the precipitation, and the particles are accumulated below the pipeline. This is why the pipeline is frequently inspected, and the accumulation below the pipeline is serious and affects the flow.

The main reasons for the deposition inside dirty oil pipes are the gravity sinking of the metal particles and the aggregation characteristics of the particles, while the deposition usually occurs in the lower part of the pipeline, i.e. the gravity side. Also, the formation of the deposit takes time and if it can be done often by removing the bottom of the deposit, the deposit will not form. The agitation of the spiral wire used in the present invention scrapes off the deposit area on the pipe, stripping the just formed deposit. The power of the spiral steel wire comes from the flowing of lubricating oil, an impeller shaft is added in the pipeline, when the lubricating oil flows through the impeller shaft, the impeller shaft rotates and drives the spiral steel wire integrated with the impeller shaft to rotate together, and the spiral steel wire scrapes the pipe wall, so that the aim of preventing deposition in the dirty oil pipe is fulfilled.

The specific technical content of the dirty oil pipe with the internal anti-deposition and decontamination structure of the embodiment is as follows:

the parts designed in the embodiment are the dirty oil pipelines 11, 12 and 13, the impeller shaft 42 and the spiral steel wire 41. The individual parts play different roles in internal anti-deposition.

Dirty oil tube deposits typically occur on the oil slide in a horizontal position (existing dirty oil tubes are all horizontally disposed structures) and the ends of the tubes are bent tubes 12 so that the flow rate is reduced and deposits occur. Therefore, the angle of the dirty oil pipeline in this embodiment is slightly inclined toward the flow direction (i.e. the inclined pipe 11), so that the dirty oil and particles in the dirty oil pipeline can move toward the inclined end by the component force of gravity even when the dirty oil and particles are influenced by gravity.

An impeller shaft 42 is installed in the dirty oil pipe, and the purpose of the impeller shaft 42 is to rotate the impeller shaft 42 by the flowing dirty oil by means of the flow of the dirty oil. The impeller shaft 42 needs to be smaller than the inner diameter of the dirty oil pipe and has little effect on the flow velocity. The impeller shaft 42 is suspended in the middle of the dirty oil pipe by means of the spiral steel wire 41.

The outer diameter of the spiral steel wire 41 is slightly smaller than the inner diameter of the dirty oil pipe, so that the spiral steel wire can flexibly rotate in the pipe. The impeller shaft 42 is fixed at the center of the spiral wire 41. When the dirty oil flows, the flowing dirty oil drives the impeller shaft 42 to rotate, and then drives the spiral steel wire 41 to rotate. The spiral wire 41 rotates so that metal particles carried in the dirty oil cannot deposit and adhere to the wall of the dirty oil pipe. When the metal particles are not attached, the metal particles continue to flow along the dirty oil. Finally, the aim of preventing the inner wall of the dirty oil pipe from depositing is fulfilled.

The decontamination principle of this embodiment is the viscosity, the velocity of flow of considering the sump oil, through stirring the sump oil, prevents that metal particle from adhering to gather for the inside decontamination purpose of purpose realization sump oil pipe, has solved the problem that sump oil pipe often appears blockking up, has increased sump oil pipe and has overhauld the interval time of decontamination, has practiced thrift the maintenance cost of low-speed diesel engine.

The present embodiment is mainly directed to the case of clogging in the dirty oil circuit of the lubricating oil which occurs in ordinary times. The pipes clogged with reference to fig. 1 are generally horizontal pipes because the flow velocity of the dirty oil in the horizontal pipes is reduced and the turbulence is reduced, so that the metal particles 2 in the dirty oil are precipitated by the influence of gravity (g) to form deposits on the lower pipe walls of the pipes. The deposit becomes thicker and thicker over time.

Referring to fig. 2, the horizontal state of the pipe (i.e., the inclined pipe 11) is improved in this embodiment, and the inclination of the pipe is increased. Thus, the particles can accumulate the dirty oil flow under the influence of gravity and move faster relative to the horizontal pipe through the gravity component.

Referring to fig. 3, the impeller shaft 42 is integrally welded to the spiral wire 41 in the present embodiment, and is installed in the pipe referring to fig. 2. The head of the impeller shaft 42 bears against the tube elbow wall (i.e., at elbow 12) to allow the impeller shaft 42 to be pivoted.

Referring to fig. 2, when the dirty oil flows in the pipe of the present invention, the flow of the dirty oil pushes the impeller shaft 42 to rotate, and at this time, the spiral steel wire 41 also rotates, and the rotating spiral steel wire 41 contacts with the bottom of the pipe to scrape deposited particles on the bottom of the pipe, and at this time, the particles float and continue to flow with the dirty oil. If the particles are reprecipitated, the particles are continuously scraped by the spiral steel wire 41 and then flow, and the dirty oil is pushed to flow to the dirty oil return tank.

In summary, according to the dirty oil pipe with the internal anti-deposition decontamination structure, the decontamination structure in the dirty oil pipe pushes the impeller shaft and the spiral steel wire to rotate by utilizing the flowing kinetic energy of the dirty oil, so that the deposits at the bottom of the dirty oil pipe are rolled up, the rolled deposits enter the dirty oil and continuously move downwards along with the fluid, and the decontamination function of the dirty oil pipe is realized.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.