Pipeline dredging device

Abstract

The utility model provides a pipeline dredging device which comprises a telescopic rack, a cleaning mechanism and a guide mechanism, the cleaning mechanism is fixedly arranged on the telescopic rack, and the guide mechanism is connected with the telescopic rack; the extending direction of the telescopic rack is perpendicular to the extending direction of a dredged pipeline, and the cleaning mechanism is parallel to the extending direction of the dredged pipeline. And when pipeline dredging work is carried out, the telescopic rack is arranged in the dredged pipeline, and the guide mechanism moves in a manner of clinging to the inner wall of the dredged pipeline. According to the pipeline cleaning device, the telescopic rack extends out of the dredged pipeline until the guide mechanism installed on the telescopic rack abuts against the inner wall of the dredged pipeline, at the moment, the cleaning mechanism starts to work, and the cleaning mechanism is driven by the guide mechanism to continuously advance or retreat along the pipeline; the cleaning and the removal of viscous media or media easy to crystallize in the dredged pipeline are completed, and the blocked pipeline can be dredged efficiently at low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline dredging, in particular to a pipeline dredging device. Background Art

[0002] In the chemical industry, conventional sampling or sewage pipelines are used to transport viscous media or easily crystallized media, which often cause pipeline blockage due to long-term retention of materials, cooling and condensation. At present, the following methods are often used to solve the above pipeline blockage problem:

[0003] Method 1: Chemical pickling method. This method requires the whole system to be shut down, is costly, and inefficient. The chemical solvent used is corrosive to the equipment, and the waste liquid treatment process after washing is cumbersome and easily pollutes the environment.

[0004] Method 2: Mechanical or manual removal method, the whole system is shut down to dismantle and remove the pipeline, which is costly and inefficient.

[0005] In view of this, the present invention is proposed to solve at least one of the above technical problems. Utility Model Content

[0006] The object of the present invention is to provide a pipeline dredging device which can dredge blocked pipelines efficiently and at low cost.

[0007] The utility model provides a pipeline dredging device, comprising a telescopic frame, a cleaning mechanism and a guiding mechanism, wherein the cleaning mechanism is fixedly arranged on the telescopic frame, and the guiding mechanism is connected to the telescopic frame; the extension direction of the telescopic frame is perpendicular to the extension direction of the pipeline to be dredged, and the cleaning mechanism is arranged parallel to the extension direction of the pipeline to be dredged; when the pipeline dredging work is carried out, the telescopic frame is placed inside the pipeline to be dredged, and the guiding mechanism moves close to the inner wall of the pipeline to be dredged.

[0008] Preferably, the guide mechanism includes a drive assembly and a roller assembly, the drive assembly is used to drive the roller assembly to roll along the inner wall of the pipeline to be cleared, the roller assembly is provided with at least a pair of rollers, and the roller assembly is connected to the retractable frame.

[0009] Preferably, the roller is made of corrosion-resistant material.

[0010] Preferably, the driving assembly is a motor, and the roller assembly is disposed on an output shaft of the motor.

[0011] Preferably, it includes a pressure mechanism and a frame body; the pressure mechanism includes a power element, an actuator, a pressurized pipe, a constant pressure valve and a pressure medium; the power element is connected to the actuator through the pressurized pipe, one end of the actuator is connected to the frame body, and the other end is connected to the roller assembly; the pressure medium released from the power element is injected into the frame body after passing through the pressurized pipe, thereby pushing the actuator to extend from both sides of the frame body until the roller assembly is pressed against the inner wall of the pipe to be cleared; the pressurized pipe is arranged on the frame body, and the constant pressure valve is arranged on the pressurized pipe, and when the roller assembly is pressed against the inner wall of the pipe to be cleared, the constant pressure valve is closed.

[0012] Preferably, the pressure mechanism is a pneumatic mechanism or a hydraulic mechanism.

[0013] Preferably, the frame body is a symmetrical structure, and the frame body is made of corrosion-resistant material.

[0014] Preferably, at least one group of the frame bodies are provided, and the rollers are symmetrically arranged on both sides of the frame bodies, and more than two groups of the frame bodies are arranged in parallel.

[0015] Preferably, the cleaning mechanism adopts a hollow pipe, the tail of which is connected to a power source, and a hole is provided at the end. The power source releases the power medium from the hole through the pipe, and the power medium is used to dredge the dredged pipe.

[0016] Preferably, the cleaning mechanism adopts an inner and outer double-layer structure, the outer layer is a hollow pipe, and the inner layer is provided with a rotating shaft of a scraper drive assembly. One end of the rotating shaft is connected to the scraper assembly, and the scraper assembly is located outside the hollow pipe. The scraper assembly rotates under the action of the scraper drive assembly.

[0017] Compared with the prior art, the beneficial effect of the utility model lies in that: as the retractable frame is extended in the pipeline to be cleared, until the guide mechanism installed on the retractable frame is pressed against the inner wall of the pipeline to be cleared, the cleaning mechanism starts to work, and the cleaning mechanism is driven by the guide mechanism to continuously move forward or backward along the pipeline to complete the cleaning and removal of the viscous medium or the easily crystallized medium in the pipeline to be cleared, and the blocked pipeline can be cleared efficiently and at low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the pipeline dredging device according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of a top view of a cross-sectional structure of a pipeline dredging device according to an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of an embodiment of the cleaning mechanism of the utility model;

[0022] Figure 4 It is a structural schematic diagram of another embodiment of the cleaning mechanism of the utility model embodiment;

[0023] Figure 5 This is a structural schematic diagram of another embodiment of the cleaning mechanism of the utility model.

[0024] Description of reference numerals:

[0025] 1: cleaning mechanism; 2: pipeline to be cleared; 3: roller assembly; 4: frame body; 5: pressurized pipeline; 6: constant pressure valve; 7: tail; 8: end; 9: scraper assembly; 10: hole; 11: bearing; 12: rotating shaft; 13: hollow pipeline; 14: actuator. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] As pipelines have unique advantages in transporting bulk goods such as liquids, gases, and slurries, they have become the fifth largest means of transportation after railways, roads, waterways, and air transportation. Pipelines are considered to be the safest and most economical way to transmit energy. However, if pipelines are used to transport various viscous media or media that are easy to crystallize, they will become blocked over time. If the blockage is not handled in time, it will easily lead to permanent dredging difficulties, and new pipelines can only be replaced.

[0030] At present, the following methods are usually used to solve the above pipeline blockage problem:

[0031] Method 1: Chemical pickling method. This method requires the whole system to be shut down, is costly, and inefficient. The chemical solvent used is corrosive to the equipment, and the waste liquid treatment process after washing is cumbersome and easily pollutes the environment.

[0032] Method 2: Mechanical or manual removal method, the whole system is shut down to dismantle and remove the pipeline, which is costly and inefficient.

[0033] In view of this, if Figures 1 to 5As shown, the utility model particularly proposes a pipe dredging device, including a retractable frame, a cleaning mechanism 1 and a guide mechanism, the cleaning mechanism 1 is fixedly arranged on the retractable frame, and the guide mechanism is connected to the retractable frame; the extension direction of the retractable frame is perpendicular to the extension direction of the pipe 2 to be dredged, and the cleaning mechanism 1 is arranged parallel to the extension direction of the pipe 2 to be dredged; when the pipe dredging work is performed, the retractable frame is placed inside the pipe 2 to be dredged, and the guide mechanism moves close to the inner wall of the pipe 2 to be dredged.

[0034] The retractable frame can be extended from the pipeline to the inner walls on both sides of the pipeline 2 to be unblocked until the guide mechanism installed on the retractable frame is pressed against the inner wall of the pipeline 2 to be unblocked. At this time, the cleaning mechanism starts to work. Driven by the guide mechanism, the cleaning mechanism continuously moves forward or backward along the inner wall of the pipeline 2 to be unblocked until the cleaning and removal of the viscous medium or the easily crystallized medium in the pipeline 2 to be unblocked is completed. The cleaning mechanism can dredge blocked pipelines efficiently and at low cost without the use of chemical reagents or the need to shut down the entire system for pipeline disassembly and cleaning.

[0035] In some preferred embodiments, the guide mechanism includes a driving assembly and a roller assembly 3, the driving assembly is used to drive the roller assembly 3 to roll along the inner wall of the pipeline 2 to be cleared, the roller assembly 3 is provided with at least a pair of rollers, and the roller assembly 3 is connected to the retractable frame. Further preferably, the roller is made of corrosion-resistant materials, for example, corrosion-resistant alloys, such as chromium-containing amorphous corrosion-resistant alloys and stainless steel; in addition, there are iron-based alloys (such as 300 series stainless steel 304, 316L, 317L, etc.), nickel-based alloys (such as Hastelloy and Ni-Cu alloy, etc.), titanium and titanium alloys, etc., so as to avoid being corroded by the medium in the pipeline 2 to be cleared, prolong the service life, and save the cost of replacing the roller. Further preferably, the driving assembly is a motor, and the roller assembly 3 is arranged on the output shaft of the motor, and the motor drives the roller to move forward or backward on the inner wall of the pipeline 2 to be cleared, so that the cleaning mechanism 1 reciprocates to deeply remove the blocked medium.

[0036] In some preferred embodiments, the retractable frame includes a pressure mechanism and a frame body 4; the pressure mechanism includes a power element, an actuator 14, a pressurized pipe 5, a constant pressure valve 6 and a pressure medium; the power element is connected to the actuator 14 through the pressurized pipe 5, one end of the actuator 14 is connected to the frame body 4, and the other end is connected to the roller assembly 3; the pressure medium released from the power element is injected into the frame body 4 after passing through the pressurized pipe 5, thereby pushing the actuator 14 to extend from both sides of the frame body 4 until the roller assembly 3 is pressed against the inner wall of the dredged pipe 2; the pressurized pipe 5 is arranged on the frame body 4, and the constant pressure valve 6 is arranged on the pressurized pipe 5, and when the roller assembly 3 is pressed against the inner wall of the dredged pipe 2, the constant pressure valve 6 is closed. The pressure mechanism is one of a pneumatic mechanism or a hydraulic mechanism, and correspondingly, the pressure medium is a high-pressure gas or a high-pressure liquid.

[0037] In some preferred embodiments, the frame body 4 is a symmetrical structure, and the frame body 4 is made of corrosion-resistant materials, for example, corrosion-resistant alloys, such as chromium-containing amorphous corrosion-resistant alloys and stainless steel; in addition, there are iron-based alloys (such as 300 series stainless steel 304, 316L, 317L, etc.), nickel-based alloys (such as Hastelloy and Ni-Cu alloy, etc.), titanium and titanium alloys, etc. The frame body 4 is provided with no less than one group, and the rollers are symmetrically arranged on both sides of the frame body 4, and more than two groups of frame bodies 4 are arranged in parallel. The overall structure can be made more stable by using multiple groups of frame bodies 4 in combination with multiple pairs of rollers. By increasing the contact area between the guide mechanism and the dredged pipe 2, the friction of the roller assembly 3 during the rolling process is increased, so that the operation of the pipeline dredging device is more reliable.

[0038] like Figure 3 and Figure 5 As shown, in some preferred embodiments, the cleaning mechanism 1 uses a hollow pipe 13, whose tail 7 is connected to a power source, and the end 8 is provided with a hole 10, and the power source releases the power medium from the hole 10 through the pipe, and the power medium is used to dredge the dredged pipe 2. Further preferably, as Figure 3 As shown, the end 8 is set in the form of a pointed tip, and the sharp head is conducive to scraping off the blocked medium. The power source is a high-pressure gas source or a high-pressure liquid source, and the high-pressure gas source or the high-pressure liquid source flows out through the interface of the tail 7 to the hole 10 of the end 8, thereby achieving the purpose of cleaning the unblocked pipeline 2.

[0039] like Figure 4 and Figure 5 As shown, in some preferred embodiments, the cleaning mechanism 1 adopts an inner and outer double-layer structure, the outer layer is a hollow pipe 13, and the inner layer is provided with a rotating shaft 12 of a scraper drive assembly, one end of the rotating shaft 12 is connected to a scraper assembly 9, and the scraper assembly 9 is located outside the hollow pipe 13, and the scraper assembly 9 rotates under the action of the scraper drive assembly. The scraper drive assembly can be a motor, and the rotating shaft 12 of the motor drives the scraper assembly 9 to rotate, thereby removing the viscous or crystalline medium in the dredged pipe 2. A bearing 11 is provided on the rotating shaft 12, and a scraper assembly 9 is provided at the end of the rotating shaft 12.

[0040] like Figure 5 As shown, a rotating shaft 12 is arranged inside the hollow pipe 13, and a hole 10 is arranged on the outer wall of the hollow pipe 13. On the one hand, the power source releases the power medium through the hole 10 on the hollow pipe 13; on the other hand, the scraper assembly 9 rotates under the action of the scraper driving assembly. This embodiment realizes a two-pronged approach, removes the blockage more efficiently, and greatly improves the efficiency of removal.

[0041] The working principle of the utility model is:

[0042] The pressure mechanism injects pressure medium into the frame body 4 through the pressurized pipe 5, thereby driving the frame body 4 to extend toward both sides of the inner wall of the pipeline 2 to be cleared until it is close to the inner wall of the pipeline 2 to be cleared. When the roller assembly 3 is close to the inner wall of the pipeline 2 to be cleared, the constant pressure valve 6 is closed. At this time, the cleaning mechanism starts to work under the drive of the roller assembly 3. On the one hand, the power source releases the power medium through the hole 10 of the hollow pipe 13; on the other hand, the scraper assembly 9 rotates under the action of the scraper driving assembly. The cleaning mechanism, driven by the roller assembly 3, continuously moves forward or backward along the pipeline 2 to be cleared, completes the cleaning and removal of the viscous medium or the easy-to-crystallize medium in the pipeline 2 to be cleared, and can clear the blocked pipeline efficiently and at low cost.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A pipeline dredging device, characterized in that: The invention comprises a retractable frame, a cleaning mechanism (1) and a guiding mechanism, wherein the cleaning mechanism (1) is fixedly arranged on the retractable frame, and the guiding mechanism is connected to the retractable frame; the extension direction of the retractable frame is perpendicular to the extension direction of the pipeline (2) to be cleared, and the cleaning mechanism (1) is arranged parallel to the extension direction of the pipeline (2) to be cleared; when clearing the pipeline, the retractable frame is placed inside the pipeline (2) to be cleared, and the guiding mechanism moves in close contact with the inner wall of the pipeline (2) to be cleared.

2. The pipeline dredging device according to claim 1, characterized in that: The guide mechanism comprises a driving assembly and a roller assembly (3); the driving assembly is used to drive the roller assembly (3) to roll along the inner wall of the pipeline (2) to be cleared; the roller assembly (3) is provided with at least a pair of rollers, and the roller assembly (3) is connected to the telescopic frame.

3. The pipeline dredging device according to claim 2, characterized in that: The roller is made of corrosion-resistant material.

4. The pipeline dredging device according to claim 2, characterized in that: The driving component is a motor, and the roller component (3) is arranged on the output shaft of the motor.

5. The pipeline dredging device according to claim 2, characterized in that: The retractable frame comprises a pressure mechanism and a frame body (4); the pressure mechanism comprises a power element, an actuator (14), a pressurized pipe (5), a constant pressure valve (6) and a pressure medium; the power element is connected to the actuator (14) through the pressurized pipe (5), one end of the actuator (14) is connected to the frame body (4), and the other end is connected to the roller assembly (3); the pressure medium released from the power element is injected into the frame body (4) after passing through the pressurized pipe (5), thereby pushing the actuator (14) to extend from both sides of the frame body (4) until the roller assembly (3) is pressed against the inner wall of the pipeline (2) to be cleared; the pressurized pipe (5) is arranged on the frame body (4), and the constant pressure valve (6) is arranged on the pressurized pipe (5); when the roller assembly (3) is pressed against the inner wall of the pipeline (2) to be cleared, the constant pressure valve (6) is closed.

6. The pipeline dredging device according to claim 5, characterized in that: The pressure mechanism is a pneumatic mechanism or a hydraulic mechanism.

7. The pipeline dredging device according to claim 5, characterized in that: The frame body (4) is of a symmetrical structure, and the frame body (4) is made of corrosion-resistant material.

8. The pipeline dredging device according to claim 7, characterized in that: The frame body (4) is provided with at least one group, and the rollers are symmetrically arranged on both sides of the frame body (4), and more than two groups of the frame bodies (4) are arranged in parallel.

9. The pipeline dredging device according to claim 1, characterized in that: The cleaning mechanism (1) adopts a hollow pipe (13), the tail (7) of which is connected to a power source, and the end (8) is provided with a hole (10). The power source releases a power medium from the hole (10) through the hollow pipe (13), and the power medium is used to dredge the dredged pipe (2).

10. The pipeline dredging device according to claim 1, characterized in that: The cleaning mechanism (1) adopts an inner and outer double-layer structure, wherein the outer layer is a hollow pipe (13), and the inner layer is provided with a rotating shaft (12) of a scraper driving assembly, one end of the rotating shaft (12) is connected to a scraper assembly (9), and the scraper assembly (9) is located outside the hollow pipe (13), and the scraper assembly (9) rotates under the action of the scraper driving assembly.

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