CN112443722A

CN112443722A - Pipeline dredging device

Info

Publication number: CN112443722A
Application number: CN202011349329.0A
Authority: CN
Inventors: 金东杰; 郭平; 陈欣; 张焱; 马斓擎; 赵彬彬; 郭云龙; 刘颖; 安东
Original assignee: CHINERGY CO LTD
Current assignee: CHINERGY CO LTD
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-03-05

Abstract

The invention discloses a conveying pipeline dredging device which comprises a driving assembly and a driven assembly, wherein the driving assembly is connected with the driven assembly; the driven assembly is arranged in the pipeline to be dredged, the driving assembly can be slidably mounted on the pipeline to be dredged along the axial direction of the pipeline to be dredged, and the driving assembly is connected with the driven assembly in a magnetic adsorption mode. When the dredging device for the conveying pipeline is used, the driving assembly is arranged on the outer wall of the pipeline to be dredged, the driven assembly is arranged in the pipeline to be dredged, and the driving assembly is in magnetic adsorption connection with the driven assembly; then, drag drive assembly to wait to dredge the card ball position in the pipeline and slide fast, drive assembly drives driven subassembly fast movement and goes to strike the spheroid, destroys the draw-in bridge through driven subassembly's impulse to the mediation of pipeline is waited to realize waiting to dredge.

Description

Pipeline dredging device

Technical Field

The invention relates to the technical field of maintenance of a conveying pipeline of a high-temperature gas cooled reactor fuel element, in particular to a dredging device for a conveying pipeline.

Background

At present, a high-temperature gas cooled reactor is a reactor type with the characteristics of a fourth generation nuclear power station, and has the greatest characteristic of inherent safety. The fuel elements of the high-temperature gas cooled reactor nuclear power station are spherical, and the fuel elements need to be continuously circulated in a reactor core in order to ensure the entering of new fuel and the discharging of spent fuel by adopting a non-stop reactor refueling technology. The fuel element cycle process is as follows: the fuel elements are firstly discharged from the bottom of the reactor core, burn-up measurement is carried out after the fuel elements pass through a fuel conveying pipeline, and the fuel elements are taken as the spent fuel to be discharged into and out of a spent fuel storage area through the fuel element conveying pipeline after reaching the burn-up depth; the fuel elements which do not reach the burn-up depth enter the core again from the top of the core through the fuel element conveying pipeline; the new fuel is also loaded into the core through the fuel element delivery conduit. The whole loading and unloading process is carried out in the fuel element conveying pipeline. The diameter of the spherical fuel element is 60mm, the inner diameter of the fuel element conveying pipeline is 62mm-65mm, and when dust or particles in the pipeline are accumulated, the pipeline of the fuel conveying system is easy to cause ball clamping failure.

Therefore, how to achieve the rapid dredging after the ball of the spherical fuel element of the high-temperature gas cooled reactor is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of this, the present invention provides a dredging device for a transportation pipeline, which can realize rapid dredging after a spherical fuel element of a high temperature gas cooled reactor is stuck.

In order to achieve the above object, the present invention provides the following solutions:

a conveying pipeline dredging device comprises a driving assembly and a driven assembly;

the driven assembly is arranged in treat dredge in the pipeline, but drive assembly along treat dredge axial slidable of pipeline install treat on the pipeline, just drive assembly with driven assembly magnetism adsorbs and is connected.

In a particular embodiment, the driven assembly includes a driven housing and a driven magnet;

the driven magnet is arranged in the driven shell, and the driven shell is arranged in the pipeline to be dredged.

In another specific embodiment, the driven assembly further comprises a rigid body;

the rigid body is mounted at a head end of the driven housing.

In another specific embodiment, the driven assembly further comprises a driven pull-cord;

one end of the driven traction rope is connected with the tail end of the driven shell, and the other end of the driven traction rope extends out of the pipeline to be dredged.

In another specific embodiment, the active component comprises a cage and a drive magnet;

the retainer can be arranged outside the pipeline to be dredged in a sliding mode, and the driving magnet is arranged on the retainer.

In another specific embodiment, the cage is disposed around the circumference of the pipe to be dredged.

In another specific embodiment, the active assembly further comprises a roller;

the roller is installed on the retainer, and the roller can roll on the outer wall of the pipeline to be dredged.

In another specific embodiment, the active assembly further comprises an active traction element;

the first end of the active traction piece is connected with the retainer and used for driving the retainer to slide along the axial direction of the pipeline to be dredged.

In another specific embodiment, the pipeline to be dredged is provided with a guide rail;

the retainer is provided with a sliding groove in sliding connection with the guide rail.

In another specific embodiment, the active component further comprises a driver;

the second end of the active traction member is connected with the driver.

The various embodiments according to the invention can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the invention and are part of the specific embodiments of the invention.

Without being limited to any theory, it can be seen from the above disclosure that, in use, the conveying pipeline dredging device disclosed by the invention places the driving component on the outer wall of the pipeline to be dredged, places the driven component in the pipeline to be dredged, and enables the driving component and the driven component to be in magnetic adsorption connection; then, drag drive assembly to wait to dredge the card ball position in the pipeline and slide fast, drive assembly drives driven subassembly fast movement and goes to strike the spheroid, destroys the draw-in bridge through driven subassembly's impulse to the mediation of pipeline is waited to realize waiting to dredge.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a conveying pipeline dredging device provided by the invention.

Wherein, in fig. 1:

the device comprises a driving assembly 1, a driven assembly 2, a pipeline 3 to be dredged, a driven shell 201, a driven magnet 202, a rigid body 203, a driven traction rope 204, a retainer 101, a driving magnet 102, a roller 103, a driving traction piece 104, a spherical fuel element 4 and dust particles 5.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to fig. 1 and the detailed description.

As shown in figure 1, the invention discloses a conveying pipeline dredging device, wherein the conveying pipeline dredging device does not contain radiation-sensitive elements and materials, and can adapt to the high-radiation environment work of a high-temperature gas cooled reactor fuel element conveying pipeline. It should be noted that the conveying pipeline dredging device disclosed by the invention can also be applied to other pipelines needing dredging.

Specifically, the conveying pipeline dredging device comprises a driving assembly 1 and a driven assembly 2.

In waiting to dredge pipeline 3, driven subassembly 2 was arranged in, but drive assembly 1 along the axial slidable of waiting to dredge pipeline 3 installs on waiting to dredge pipeline 3, and drive assembly 1 and 2 magnetism of driven subassembly are adsorbed and are connected, and drive assembly 1 drives driven subassembly 2 and to waiting to dredge pipeline 3 card ball position striking.

The driving component 1 can be sleeved outside the pipeline 3 to be dredged, and a groove or an installation track and the like can be arranged on the outer wall of the pipeline 3 to be dredged so as to install the driving component 1.

When the dredging device for the conveying pipeline is used, the driving assembly 1 is placed on the outer wall of the pipeline 3 to be dredged, the driven assembly 2 is placed in the pipeline 3 to be dredged, and the driving assembly 1 and the driven assembly 2 are in magnetic adsorption connection; then, drag drive assembly 1 to wait to dredge the card ball position quick slip in the pipeline 3, drive assembly 1 drives driven subassembly 2 rapid drainge and goes to strike the spheroid, destroys the draw-in bridge through the impulse of driven subassembly 2 to the realization is waited to dredge the mediation of pipeline 3.

In some embodiments, the driven assembly 2 comprises a driven housing 201 and a driven magnet 202, the driven magnet 202 is mounted in the driven housing 201, and the driven housing 201 is placed in the pipe 3 to be dredged.

Specifically, the driven magnet 202 is a permanent magnet.

On one hand, the driven shell 201 is convenient for containing the driven magnet 202, the driven magnet 202 is wrapped in the driven shell 201 and cannot leak, and secondary pollution to the pipeline 3 to be dredged is avoided; and on the other hand, functions to protect the driven magnet 202. The driven magnet 202 has sufficient strength and rigidity, and specifically, the driven housing 201 is a thin-walled container.

The driven housing 201 can open and close, specifically, the driven housing 201 comprises a box body and a box cover, the driven magnet 202 is arranged in the box body, and the box cover can be detachably covered on the opening end of the box body. The box cover can be connected to the box body through a buckle or a screw, and the invention belongs to the protection scope as long as the detachable connection mode of the box cover and the box body is satisfied.

The shapes of the cover body and the cover are the same as the shape of the pipeline 3 to be dredged, so that the cover body and the cover can be conveniently moved in the pipeline 3 to be dredged.

Further, the invention discloses that the driven assembly 2 further comprises a rigid body 203, the rigid body 203 is arranged at the head end of the driven shell 201, and the head end of the driven shell 201 refers to the end of the driven shell 201 facing the blockage of the pipeline 3 to be dredged. The rigid body 203 acts as an impact bridge, reducing impact damage to the driven magnet 202.

Specifically, the head end of the rigid body 203 is provided with a guiding portion, and the guiding portion may be in a cone shape or in other shapes, so long as the guiding is satisfied, and the invention belongs to the protection scope of the invention.

The guide portion may be welded to the driven housing 201, may be integrally formed, or may be detachably connected by a screw.

In order to avoid secondary blockage of the pipeline 3 to be dredged caused by the driven assembly 2 after failure of magnetic drive, the invention discloses that the driven assembly 2 further comprises a driven traction rope 204, one end of the driven traction rope 204 is connected with the tail end of the driven shell 201, the other end of the driven traction rope 204 extends out of the pipeline 3 to be dredged, specifically, after the driven traction rope 204 extends out of the pipeline 3 to be dredged, the end is fixed on the outer wall of the pipeline 3 to be dredged or other fixing devices, and when the driven assembly 2 is prevented from impacting a bridge clamp, two ends of the driven traction rope 204 enter the pipeline 3 to be dredged.

In order to prevent the driven traction rope 204 from being wound together during the movement of the driven housing 201, the driven traction rope 204 is fixed on a pulley, and the pulley can be arranged on a bracket arranged outside, etc.

In some embodiments, the invention discloses that the active component comprises a retainer 101 and a driving magnet 102, wherein the retainer 101 can be slidably arranged outside the pipeline 3 to be dredged, and the driving magnet 102 is arranged on the retainer 101.

Specifically, the number of the driving magnets 102 is not limited, and is at least 1.

The driving magnet 102 may be a permanent magnet or an electromagnet, when the driving magnet 102 is an electromagnet and the driven magnet 202 is installed, the driving magnet 102 is in a power-off state, and when the driven magnet 202 is installed in place, the driving magnet 102 is powered on to attract the driven magnet 202 to the position of the pipe 3 to be dredged and can follow the movement of the driving magnet 102.

In order to realize uniform stress of the driven assembly 2, the invention further discloses that the retainer 101 is arranged around the circumference of the pipeline 3 to be dredged.

Correspondingly, the number of the driving magnets 102 is multiple, and the driving magnets are uniformly distributed around the circumference of the pipeline 3 to be dredged. The holder 101 is provided with a plurality of mounting positions for mounting the driving magnets 102. I.e. the drive assembly 1 adopts a split structure.

The retainer 101 can be divided into multiple sections, and the adjacent sections are hinged and detachable, so that the application of pipelines 3 to be dredged with different pipe diameters is facilitated.

Further, the invention discloses that the active component further comprises a roller 103, the roller 103 is mounted on the retainer 101, and the roller 103 can roll on the outer wall of the pipeline 3 to be dredged. The rollers 103 are arranged to facilitate movement of the active assembly over the pipe 3 to be dredged.

The number of the rollers 103 is a plurality, and the rollers are uniformly distributed at the end of the retainer 101 facing the pipeline 3 to be dredged.

In some embodiments, the invention discloses that the pipeline 3 to be dredged is provided with a guide rail, and the retainer 101 is provided with a sliding groove in sliding connection with the guide rail. It should be noted that a slide rail may be laid on the pipe 3 to be dredged, and when the roller 103 is mounted on the holder 101, the roller 103 is connected to the slide rail in a rolling manner.

In order to facilitate the movement of the active component, the invention discloses that the active component further comprises an active traction member 104, and a first end of the active traction member 104 is connected with the retainer 101 and is used for driving the retainer 101 to slide along the axial direction of the pipeline 3 to be dredged.

Specifically, active traction element 104 is an active traction rope or an active traction bar, or the like. The active component is moved by manually or electrically driving the active traction element 104.

Further, the present invention discloses that the active assembly further comprises a driver, and the second end of the active traction member 104 is connected with the driver.

Specifically, the actuator is an air cylinder, a hydraulic cylinder, or the like.

When the spherical fuel elements 4 in the fuel conveying pipeline are subjected to bridge-locking at the dust particles 5, the spherical fuel elements 4 cannot continue to circulate fuel in the fuel conveying pipeline. The driven assembly 2 can be placed into the fuel conveying pipeline from a place nearby the flange interface, the driving assembly 1 is assembled outside the fuel conveying pipeline, and then the driving assembly 1 moves outside the fuel conveying pipeline through manually or electrically stretching the driving traction rope. The driving assembly 1 drives the driven assembly 2 to move towards the spherical fuel element 4 through the magnetic force of the driving magnet 102 and the driven magnet 202. When the driving assembly 1 reaches a certain speed, the driven assembly 2 will simultaneously obtain a certain kinetic energy, and then the momentum generated after the rigid body 203 impacts the spherical fuel elements 4 realizes the breaking of the bridge.

It should be noted that the terms indicating the orientation, such as the head end and the tail end, are set in the direction of the drawings in the specification, and are used for convenience of description only and have no other specific meanings.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The conveying pipeline dredging device is characterized by comprising a driving assembly and a driven assembly;

2. The transit tube pull through of claim 1, wherein the driven assembly comprises a driven housing and a driven magnet;

3. The conveying pipe pull of claim 2, wherein the follower assembly further comprises a rigid body;

the rigid body is mounted at a head end of the driven housing.

4. The transit tube pull through of claim 2, wherein the follower assembly further comprises a follower pull-cord;

5. The conveying pipe pull through of any one of claims 1-4, wherein the active component comprises a cage and a drive magnet;

6. The conveying pipe pull of claim 5, wherein the cage is disposed circumferentially around the pipe to be pulled.

7. The conveying pipe pull of claim 5, wherein the active assembly further comprises a roller;

8. The conveying pipe pull of claim 5, wherein the active assembly further comprises an active tractor;

9. The conveying pipeline dredging device of claim 5, wherein the pipeline to be dredged is provided with a guide rail;

10. The conveying pipe pull through of any one of claims 6-9, wherein the active assembly further comprises a driver;

the second end of the active traction member is connected with the driver.