CN113731966A - Non-contact pipeline dust cleaning method and system - Google Patents
Non-contact pipeline dust cleaning method and system Download PDFInfo
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- CN113731966A CN113731966A CN202110884811.2A CN202110884811A CN113731966A CN 113731966 A CN113731966 A CN 113731966A CN 202110884811 A CN202110884811 A CN 202110884811A CN 113731966 A CN113731966 A CN 113731966A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 69
- 239000000428 dust Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000007664 blowing Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention belongs to the field of combustible dust cleaning, and discloses a non-contact pipeline dust cleaning method and a non-contact pipeline dust cleaning system, wherein the non-contact pipeline dust cleaning method comprises a cleaning device capable of moving in a pipeline by means of airflow thrust and a pulling line for controlling the moving speed of the cleaning device; the cleaning device comprises a hollow body and a tail part arranged in the body; an accelerating air duct with a gradually reduced section is formed between the outer wall of the tail part and the inner wall of the body, and an outlet of the accelerating air duct faces to the inner wall of the pipeline; the body is provided with a traveling mechanism which is in contact with the inner wall of the pipeline. According to the invention, the accelerating air duct with the sectional area gradually reduced along the wind direction and facing the inner wall of the pipeline is arranged in the pipeline, so that the wind in the pipeline forms a rapid airflow after being accelerated by the accelerating air duct, and the dust on the inner wall of the pipeline is blown. Compared with the prior art, the invention adopts a non-contact ash removal mode, and can effectively avoid the problems of static electricity, spark, frictional heat and the like, thereby avoiding explosion and ensuring that the dust cleaning work is safer.
Description
Technical Field
The invention relates to the field of combustible dust cleaning, in particular to a non-contact pipeline dust cleaning method and system.
Background
The combustible dust refers to dust, fiber or flying floc which can be burnt or smoldered in the air and form an explosive mixture with the air at normal temperature and normal pressure. Combustible dust suspended in the air can explode when meeting a fire source when reaching an explosion point, so that the dust accumulated in the dust removal pipeline is very important to be cleaned in time.
The original dust cleaning mode can be divided into two main types: chemical cleaning and physical cleaning. Chemical cleaning generates industrial waste liquid, high cost is caused in treatment, and dust is easy to react with chemical substances to cause explosion, so a physical cleaning mode is generally adopted in a factory. Patent CN202010635669.3 discloses a passive drive pipeline deashing robot, transmits the rotary motion of drive arrangement output to cleaning device through flexible coupling, and drive cleaning device's cleaning head is rotatory carries out the deashing operation. By adopting the contact type cleaning mode, static electricity, sparks, frictional heat and the like can be generated in the working process, and the contact type cleaning mode is easy to react with dust in the pipeline to cause explosion, so that the risk is brought to the cleaning of the combustible dust pipeline.
Disclosure of Invention
The invention overcomes the defects in the prior art and provides a non-contact pipeline dust cleaning method and a non-contact pipeline dust cleaning system, wherein an accelerating air duct with a gradually reduced section and facing the inner wall of a pipeline is formed between the tail part of the device and a body through structural design; the air flow generated by the fan in the pipeline is blown to the inner wall of the pipeline through the accelerating air duct, the dust accumulated on the inner wall of the pipeline is blown, and the dust on the inner wall of the pipeline is cleaned by the aid of the dust removal device arranged at the other end of the pipeline.
The technical scheme of the invention is realized as follows:
a non-contact pipeline dust cleaning method is characterized in that a pipeline is ventilated, an accelerating air channel with the sectional area gradually reduced along the wind direction is arranged in the pipeline, the outlet of the accelerating air channel faces the inner wall of the pipeline, and the wind in the pipeline is accelerated by the accelerating air channel to form a rapid air flow for blowing up dust on the inner wall of the pipeline.
Preferably, the acceleration duct is formed on a carrier movable within the duct.
Preferably, the carrier moves in the pipeline by means of wind power, and a pulling line for controlling the moving speed of the carrier is connected to the carrier.
Preferably, the cleaning method is suitable for pipelines with different cross-sectional shapes and special-shaped pipelines with branch pipes or bends.
A non-contact pipeline dust cleaning system is matched with a fan for forming airflow in a pipeline, and comprises a cleaning device capable of moving in the pipeline by virtue of airflow thrust and a pull wire for controlling the moving speed of the cleaning device; the cleaning device comprises a hollow body and a tail part arranged in the body; an accelerating air duct with a gradually reduced section is formed between the outer wall of the tail part and the inner wall of the body, and an outlet of the accelerating air duct faces to the inner wall of the pipeline; the body is provided with a traveling mechanism which is in contact with the inner wall of the pipeline.
Preferably, the body is a structure with radial dimensions gradually shrinking from two ends to the middle.
Preferably, the tail part is in a conical shape with a generatrix being a straight line or an arc line.
Preferably, the tip of the tail portion is located at the centre of the smallest cross-section in the radial direction in the body.
Preferably, the walking mechanism comprises a group of rollers distributed along the circumferential direction and arranged at the front end of the body or the joint of the tail end and the tail end of the body.
Preferably, the walking mechanism comprises two groups of rollers distributed along the circumferential direction, one group of rollers is arranged at the joint of the tail end and the body end, and the other group of rollers is arranged at the front end of the body.
The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:
according to the non-contact type pipeline dust cleaning method and system provided by the invention, the gradually reduced accelerating air channel is formed between the tail part and the body, the airflow enters the front section of the body and is gathered, and is shunted to enter the accelerating air channel when reaching the middle section of the body, the airflow is gradually accelerated by virtue of the gradually reduced characteristic of the accelerating air channel, and when the airflow penetrates out of the accelerating air channel, the speed is fastest, and the dust on the inner wall of the pipeline is blown and taken away.
Compared with the contact type robot dust cleaning method provided by the prior art, the dust cleaning method provided by the invention has the advantages that the non-contact type dust cleaning method is adopted, so that the problems of static electricity, spark, friction heat and the like can be effectively avoided, the explosion is avoided, and the dust cleaning work is safer. The accelerating air duct with the sectional area gradually reduced along the wind direction and towards the inner wall of the pipeline is arranged in the pipeline, so that the wind in the pipeline forms quick airflow after accelerating through the accelerating air duct, and dust on the inner wall of the pipeline is blown. The dust cleaning system realizes a non-contact dust cleaning mode through the interaction of the fan, the cleaning device and the traction line. The design of the accelerating air channel between the cleaning device body and the tail part accelerates the air flow in the pipeline, and the structure that the dust body attached to the inner wall of the pipeline is blown down by the high-speed air flow passing through the accelerating air channel and gradually shrinks from two ends to the middle not only plays the roles of air collection and diffusion, but also is beneficial to better adapting to the curve change in the pipeline, so that the device can effectively avoid the collision or the blockage with the wall surface of the pipe when passing through the curve, and the smooth advancing of the device is ensured. The device can stably pass through the shunt pipe and the pipeline bend with smaller curvature radius, is also suitable for pipelines with different section shapes, and has good universality.
Drawings
FIG. 1 is a schematic view of the apparatus of the present application in a circular pipe;
FIG. 2 is a schematic view of the apparatus of the present application in a rectangular duct;
FIG. 3 is a schematic view of the apparatus of the present application in a hexagonal pipe;
FIG. 4 is a schematic view of the apparatus of the present application traveling within a pipeline with a branch;
FIG. 5 is a cross-sectional view of the apparatus of the present application in a duct having a corner;
FIG. 6 is a diagram of an apparatus according to an embodiment of the present application;
FIG. 7 is a cross-sectional view of FIG. 6;
FIG. 8 is a cross-sectional view of the operation of FIG. 6 in a circular pipe;
the figures are numbered: a tail part 1; a body 2; the inner wall 3 of the pipeline; an acceleration air duct 4; a roller 7; a pulling wire 9; a second acceleration air duct 10; and a small hole 11.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The utility model provides a non-contact pipeline dust cleaning method, carries out continuous ventilation to the pipeline, sets up the cross-sectional area in the pipeline and follows the wind direction and gradually reduce the wind channel with higher speed, and the export in wind channel with higher speed is towards the pipeline inner wall, and the wind in the pipeline forms quick air current after accelerating the wind channel with higher speed, and quick air current acts on the pipeline inner wall, blows up the dust on the pipeline inner wall, realizes non-contact pipeline dust cleaning then. The accelerating air duct is formed on a carrier which can move in the pipeline, and the carrier moves in the pipeline by means of wind power. The cleaning mode can be suitable for pipelines with different cross-sectional shapes, has good adaptability, such as round pipelines, rectangular pipelines, hexagonal pipelines and the like, and is also suitable for special-shaped pipelines with branch pipes or bends, as shown in figures 1-5.
As an implementation means, the application provides a non-contact pipeline dust cleaning system which is matched with a fan used for forming airflow in a pipeline and comprises a cleaning device capable of moving in the pipeline by means of airflow thrust and a pulling line used for controlling the moving speed of the cleaning device. The cleaning device is movably arranged in the pipeline to be cleaned and used in cooperation with wind in the pipeline, and non-contact cleaning of dust in the pipeline is achieved by means of the fan and the dust removal device. The dust removal device is arranged at the tail end of the pipeline and used for recovering dust cleaned by the device. The traction line is used for pulling the device in the direction opposite to the wind direction.
The cleaning device comprises a hollow body 2 and a tail part 1 arranged in the body 2, as shown in fig. 6-8, the rear end of the tail part 1 is fixedly connected with the rear end of the body 2. The central line of the tail part 1 is superposed with the central axis of the tail part 1, so that the whole device is of a symmetrical structure and is stressed more uniformly. The outer wall of the tail part 1 which is gradually enlarged along the radial direction and the inner wall of the body 2 form an accelerating air duct 4 with the gradually reduced section, and the outlet of the accelerating air duct 4 faces the inner wall 3 of the pipeline. When the air current passes through the accelerating air duct 4, due to the structural design that the section of the air current is gradually reduced, the speed of the air current passing through the minimum section of the accelerating air duct 4 reaches the fastest speed, and the air current is sprayed out from the accelerating air duct 4 to blow up dust accumulated on the inner wall 3 of the pipeline. In order to ensure the application stability of the device, a running mechanism which is used for contacting with the inner wall of the pipeline is also arranged on the device, and the running mechanism can be arranged at the front end of the body 2 or the joint of the body 2 and the tail part 1. The device with the structure can be suitable for most of pipelines with different section shapes, has good adaptability, such as round pipelines, rectangular pipelines, hexagonal pipelines and the like, is also suitable for special-shaped pipelines with branch pipes or bends, and the accelerating air duct structure can be correspondingly set to be round, rectangular or hexagonal.
The body 2 is of a hollow structure gradually contracting from two ends to the middle, and the body 2 is designed in such a way that the device cannot collide with or be clamped with the wall surface of a pipe when turning in the pipeline; secondly design like this make 2 outer walls of body and pipeline inner wall 3 before form the second air duct 10 that accelerates that the cross-section reduces gradually, also can play certain cleaning action to pipeline inner wall 3 dust for the clearance effect is better.
In this embodiment, the device suitable for a circular pipeline is taken as an example, the tail portion 1 of the body is in a conical shape with a single-sheet hyperboloid structure, the generatrix of the conical shape can be a linear cone, the generatrix of the conical shape can also be an arc cone, and the top end of the tail portion 1 is located in the center of the body 2.
In this embodiment, the running mechanism includes two sets of rollers 7 distributed along the circumferential direction, one set is disposed at the front end of the body 2, and the other set is disposed at the joint of the body 2 and the tail portion 1. Each group of rollers comprises a plurality of uniformly distributed supporting wheels, and is arranged at the joint of the head part 1 and the body 2 for one circle and the tail end of the body 2 for one circle. The front end and the tail end of the body 2 are also provided with brackets for mounting the rollers 7. In order to prevent the surface of the device body from colliding or being blocked with the inner wall 3 of the pipeline when the device body turns, the outermost side edge of the supporting wheel exceeds the outermost side edge of the front end and the rear end of the body 2, and under the action of wind power, the supporting wheel rolls along the inner wall 3 of the pipeline to drive the device to move together.
In this embodiment, the front end of the body 2 is provided with a plurality of small holes 11 for connecting the pulling lines, and the pulling lines 9 pass through the small holes 11 to be connected with the body 2. On the one hand, the device can be prevented from being blown away by wind, on the other hand, the advancing speed of the device is controlled by controlling the pulling wire 9, so that a speed difference is formed between the moving speed of the device and the airflow, the cleaning effect on dust on the pipe wall is enhanced, and the device can be pulled out after the cleaning is finished.
In actual conditions, flammable and explosive dust pipelines often encounter shunt pipes or branch pipes. When the pipeline is met, the device is clamped into the shunt pipe, and the cleaning head is easily clamped into the inlet of the branch pipe by adopting a contact cleaning mode. In order to avoid such things, the present embodiment employs six concentric uniformly distributed support wheels, and when the wheels on one side are suspended, the wheels on the periphery provide support to enable the axis of the device and the axis of the pipeline to keep the same straight line, thereby ensuring the device to move forward. In addition, the non-contact type cleaning mode can guide airflow in the pipeline into the shunt pipe or the branch pipe, and is favorable for cleaning dust attached to the shunt pipe or the branch pipe.
Claims (10)
1. A non-contact type pipeline dust cleaning method is characterized in that a pipeline is ventilated, an accelerating air duct with the sectional area gradually reduced along the wind direction is arranged in the pipeline, an outlet of the accelerating air duct faces the inner wall of the pipeline, and wind in the pipeline is accelerated through the accelerating air duct to form rapid airflow for blowing dust on the inner wall of the pipeline.
2. A method as claimed in claim 1, wherein the accelerating air duct is formed on a carrier movable in the duct.
3. A non-contact pipeline dust cleaning method according to claim 2, wherein the carrier moves in the pipeline by wind power, and a pulling wire for controlling the moving speed of the carrier is connected to the carrier.
4. A non-contact pipeline dust cleaning method according to claim 1, wherein the cleaning method is suitable for pipelines with different cross-sectional shapes and special-shaped pipelines with branch pipes or bends.
5. A non-contact pipeline dust cleaning system is matched with a fan for forming airflow in a pipeline to work, and is characterized by comprising a cleaning device capable of moving in the pipeline by virtue of airflow thrust and a pull wire for controlling the moving speed of the cleaning device; the cleaning device comprises a hollow body and a tail part arranged in the body; an accelerating air duct with a gradually reduced section is formed between the outer wall of the tail part and the inner wall of the body, and an outlet of the accelerating air duct faces to the inner wall of the pipeline; the body is provided with a traveling mechanism which is in contact with the inner wall of the pipeline.
6. A non-contact duct dust cleaning system according to claim 5, wherein the body is of a configuration that tapers in radial dimension from end to end.
7. The non-contact pipeline dust cleaning system according to claim 5, wherein the tail part is conical with a generatrix being a straight line or an arc line.
8. A non-contact duct dust cleaning system according to claim 7, wherein the tip of the tail is centered on the smallest radial cross-section in the body.
9. The non-contact pipeline dust cleaning system according to claim 5, wherein the traveling mechanism comprises a set of rollers distributed along the circumferential direction and arranged at the front end of the body or the joint of the tail end and the tail end of the body.
10. The non-contact pipeline dust cleaning system of claim 5, wherein the traveling mechanism comprises two sets of rollers distributed along the circumferential direction, one set of rollers is arranged at the joint of the tail end and the body end, and the other set of rollers is arranged at the front end of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110884811.2A CN113731966B (en) | 2021-08-03 | 2021-08-03 | Non-contact type pipeline dust cleaning method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110884811.2A CN113731966B (en) | 2021-08-03 | 2021-08-03 | Non-contact type pipeline dust cleaning method and system |
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| Publication Number | Publication Date |
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| CN113731966A true CN113731966A (en) | 2021-12-03 |
| CN113731966B CN113731966B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110884811.2A Active CN113731966B (en) | 2021-08-03 | 2021-08-03 | Non-contact type pipeline dust cleaning method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570725A (en) * | 2022-02-10 | 2022-06-03 | 郑州旭飞光电科技有限公司 | Industrial dedusting pipe network system |
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| Publication number | Publication date |
|---|---|
| CN113731966B (en) | 2024-09-10 |
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