CN111495894A - Pipeline internal cleaning system and cleaning method thereof - Google Patents
Pipeline internal cleaning system and cleaning method thereof Download PDFInfo
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- CN111495894A CN111495894A CN202010473661.1A CN202010473661A CN111495894A CN 111495894 A CN111495894 A CN 111495894A CN 202010473661 A CN202010473661 A CN 202010473661A CN 111495894 A CN111495894 A CN 111495894A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000012459 cleaning agent Substances 0.000 claims abstract description 44
- 239000006260 foam Substances 0.000 claims description 30
- 230000003749 cleanliness Effects 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000008259 solid foam Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000004064 recycling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000004087 circulation Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
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- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 2
- 235000019801 trisodium phosphate Nutrition 0.000 description 2
- 238000004506 ultrasonic cleaning Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
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- 238000003754 machining Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 101150005408 nas-6 gene Proteins 0.000 description 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- 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
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- 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
-
- 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
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a pipeline internal cleaning system and a cleaning method thereof, wherein the pipeline internal cleaning system comprises a hydraulic power device, a support shaft, a container for recovering a cleaning agent and a recirculation device, wherein the hydraulic power device, the support shaft, the container and the recirculation device are sequentially arranged, a pipe to be cleaned is wound on the support shaft, and the hydraulic power device, the pipe to be cleaned, the container and the recirculation device are communicated together through a pipeline; the cleaning system can quickly wash a long pipe to be cleaned, and the cleanness degree is known through the observation of the cleanness, so that the cleanness effect is ensured. The cleaning device has a simple structure, realizes cleaning operation of different pipes to be cleaned through ingenious combination of a plurality of parts, can clean the pipes to be cleaned with large length and small inner diameter, effectively meets the cleaning requirements of customers on the pipes to be cleaned, and provides better experience for the customers.
Description
Technical Field
The invention relates to the technical field of element cleaning, in particular to a pipeline internal cleaning system and a cleaning method thereof.
Background
The goal of component cleaning and system flushing is to eliminate or minimize early failure of the equipment. The aim of flushing is to improve the cleanliness of oil, so that the cleanliness of the oil in the system is kept within the pollution tolerance of critical hydraulic elements in the system, and the working reliability of the hydraulic system and the service life of the elements are ensured.
The hydraulic components inevitably leave contaminants after each process step in the processes of machining, assembly, maintenance, etc. After elements with unsatisfactory cleanliness are installed in the system, under the action of system oil scouring, mechanical vibration and the like, inherent pollutants in the elements can fall off from the adhered surfaces and enter the oil, so that the system is additionally polluted. Cleaning measures must therefore be taken before the components are assembled into the system in order to achieve the required cleanliness of the components.
At present, the common cleaning methods include immersion cleaning, mechanical scrubbing, ultrasonic cleaning, heating volatile matter and acid treatment. When in use, the methods can be combined or multi-step cleaning can be carried out, and the cleaning agents are sequentially cleaned in two or three adjacent cleaning tanks (machines), and the cleaning pollution degrees of the cleaning tanks (machines) are different, so that the formulas and the heating temperatures of the cleaning agents are different.
Specifically, the solvent dipping and cleaning are to dip the cleaned parts into a cleaning tank with heating equipment (the heating temperature is generally 35-85 ℃), and introduce compressed air or steam into the cleaning agent to enable the cleaning agent to be in a dynamic state, wherein the dipping time is 4-8 hours. For parts with serious oil stains, the parts are manually wiped when being cleaned.
Motorized scrubbing can be used to brush dirt with a soft bristle brush to maintain the precision and low roughness of the elements. For example, if a hard wire brush is used, the filter core is damaged or the filtering precision is changed sometimes; for a high-precision low-roughness hydraulic valve body, a nylon deburring brushing brush with an abrasive ball is used for brushing the end part of a valve hole, the joint of a pore passage, a cutting groove and the like, a brush head of the nylon deburring brushing brush is formed by bonding black nylon wires with the diameter of 0.3-0.6 mm and green silicon carbide abrasive with the specification of M20, and the inside of the nylon deburring brushing brush is provided with cleaned residues which can block pipelines and equipment.
Ultrasonic cleaning is to use ultrasonic wave with proper power to be injected into cleaning agent to form a point-like tiny cavity, when the cavity is expanded to a certain degree, the cavity is suddenly broken to form local vacuum, the surrounding fluid fills the vacuum at a high speed, and strong sound pressure and mechanical impact force (namely cavitation action) with thousands of atmospheric pressures are generated, so that pollutants on the surface of a part placed in the cleaning agent are peeled off. The method has the advantages of short cleaning time and good cleaning quality, and can also clean parts which are complicated in shape and cannot be cleaned manually. Compared with manual work, the work efficiency is improved by more than 10 times, the cost is reduced, but for the porous substance such as the filter, the effect of absorbing sound waves can influence the cleaning effect.
The heating volatilization method is suitable for treating special pollutants, namely the pollutants can be volatilized after heating, but the method cannot remove residual carbon, ash and solid attachments inside the hydraulic element.
Although the existing cleaning methods are many, the pipe to be cleaned with large length has small inner diameter and large length, and is difficult to clean, the inside of the pipe to be cleaned is difficult to clean by mechanical scrubbing, so that the cleaning method can only be used by a washing method, but the welding residues and the like in the pipe are difficult to remove by a common cleaning method.
Disclosure of Invention
The invention aims to provide a pipeline internal cleaning system, which solves the problem that the cleaning operation of a large-length pipe to be cleaned is difficult to realize by a single cleaning mode.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a pipeline internal cleaning system which comprises a hydraulic power device, a supporting shaft, a container for recovering cleaning agents and a recycling device, wherein the hydraulic power device, the supporting shaft, the container and the recycling device are sequentially arranged, pipes to be cleaned are wound on the supporting shaft, and the hydraulic power device, the pipes to be cleaned, the container and the recycling device are communicated together through pipelines.
Further, hydraulic power unit includes cleaner groove and electronic hydraulic pump, electronic hydraulic pump's input with cleaner groove intercommunication, electronic hydraulic pump's output with treat abluent treat the scavenge pipe intercommunication.
Still further, the recirculation device comprises a first filter, an auxiliary pump and a second filter, the auxiliary pump is positioned between the first filter and the second filter, and the first filter, the auxiliary pump and the second filter are connected in series through a pipeline.
Furthermore, a high-pressure filter and a foam cleaning pipe are arranged on a pipeline communicated with the hydraulic power device and the pipe to be cleaned, and the high-pressure filter and the foam cleaning pipe cleaner are sequentially arranged and communicated through the pipeline; and a cleaner catcher and a third filter are arranged on a pipeline for communicating the pipe to be cleaned with the container, and the cleaner catcher and the third filter are sequentially arranged and communicated through the pipeline.
Still further, the first filter and the second filter both adopt a cartridge filter with a 1 μ M stainless steel pleated filter, and the diameter of a filter cylinder of the cartridge filter is 108 mm.
Still further, the third filter was a cartridge filter with a 1 μ M stainless steel pleated filter, the diameter of the cylinder of which is 108 mm.
The method for cleaning the inside of the pipeline cleaning system by using the pipeline cleaning system comprises the following steps:
step one, putting a clean foam pipe cleaner into a pipe to be cleaned, and then sequentially arranging the hydraulic power device, the high-pressure filter and the pipe to be cleaned and communicating the hydraulic power device, the high-pressure filter and the pipe to be cleaned through a pipeline; a pipeline for communicating the pipe to be cleaned with the container is connected with a cleaner catcher and a third filter, and a recirculation device is arranged between the third filter and the hydraulic power device;
secondly, adding a cleaning agent into the cleaning agent tank;
step three, turning on an electric hydraulic pump in the hydraulic power device, and then turning on an auxiliary pump in the recirculation device; when the electric hydraulic pump reaches a preset pressure value, slowly opening a valve at a liquid discharge port of the electric hydraulic pump, and cleaning the pipe to be cleaned;
step four, after the foam pipe cleaner enters the pipe cleaner catcher through the pipe to be cleaned, closing the electric hydraulic pump and the auxiliary pump, detaching the foam pipe cleaner from the pipe cleaner catcher, observing the cleanness degree of the foam pipe cleaner by naked eyes, and cleaning a filter screen of a third filter;
and repeating the first step to the fourth step until the internal cleanliness of the pipe to be cleaned reaches the standard.
Further, in the step one, the foam pipe cleaner adopts EPE polyethylene closed foaming air holes to form a solid foam rod, and the diameter of the foam pipe cleaner is 1.5-2.0 times of the inner diameter of the pipe to be cleaned.
And furthermore, the special cleanliness tester is extended into the cleaning agent in the container to test the cleanliness of the flowing cleaning agent, the cleaning agent needs to be tested once every two to three cycles, and the test result is recorded until the product requirement is met.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention relates to a pipeline internal cleaning system which comprises a hydraulic power device, a support shaft, a container for recovering cleaning agents and a recycling device, wherein the hydraulic power device, the support shaft, the container and the recycling device are sequentially arranged, pipes to be cleaned are wound on the support shaft, the hydraulic power device, the pipes to be cleaned, the container and the recycling device are communicated together through a pipeline, a foam pipe cleaner is not installed in the cleaning system, a post-pump filter is not installed, the pressure is higher, the length of the cleaned pipes to be cleaned is longer, namely the whole pipeline is a closed system, the pressure transmission between an electric hydraulic pump in the hydraulic power device and the pipes to be cleaned can be effectively ensured, and the cleaning solution cannot pass through a control pipe with a large length due to too small pressure is prevented. In another embodiment, a high-pressure filter and a foam cleaning pipe are additionally arranged on a pipeline communicated with the hydraulic power device and the pipe to be cleaned, and the high-pressure filter and the foam cleaning pipe cleaner are sequentially arranged and communicated through the pipeline; the cleaning system comprises a cleaning pipe and a container, wherein a cleaning device catcher and a third filter are arranged on the pipeline for communicating the cleaning pipe with the container, the cleaning device catcher and the third filter are sequentially arranged and communicated through the pipeline, the cleaning system can ensure that cleaning agents entering the cleaning pipe can meet the requirement of cleanliness more definitely, but the cleaning system is complex in structure and low in pressure. The cleaning device has a simple structure, realizes cleaning operation of different pipes to be cleaned through ingenious combination of a plurality of parts, can clean the pipes to be cleaned with large length and small inner diameter, effectively meets the cleaning requirements of customers on the pipes to be cleaned, and provides better experience for the customers.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a first schematic view of a pipeline internal cleaning system according to the present invention;
FIG. 2 is a second schematic view of the system for cleaning the interior of a pipeline according to the present invention;
description of reference numerals: 1. a hydraulic power unit; 101. a cleaning agent tank; 102. an electrically-driven hydraulic pump; 2. a support shaft; 3. a container; 4. a recirculation device; 401. a first filter; 402. an auxiliary pump; 403. a second filter; 5. a high pressure filter; 6. a foam pipe cleaner; 7. a cleaner catcher; 8. a third filter; 9. the pipe to be cleaned.
Detailed Description
Example 1:
as shown in figure 1, the pipeline internal cleaning system comprises a hydraulic power device 1, a supporting shaft 2, a cleaning agent recovery container 3 and a recirculation device 4, wherein the hydraulic power device 1, the supporting shaft 2, the container 3 and the recirculation device 4 are sequentially arranged, a long pipe 9 to be cleaned is wound on the supporting shaft 2, and the hydraulic power device 1, the pipe 9 to be cleaned, the container 3 and the recirculation device 4 are communicated together through a pipeline. Specifically, hydraulic power unit 1 includes cleaner groove 101 and electronic hydraulic pump 102, electronic hydraulic pump 102's input with cleaner groove 101 intercommunication, electronic hydraulic pump 102's output with wait to wash treat that the scavenge pipe 9 communicates, treat the scavenge pipe 9 the other end with container 3 communicates. Specifically, the pipe 9 to be cleaned includes a hydraulic control pipe, an aviation coiled pipe, and the like.
The recirculation device 4 comprises a first filter 401, an auxiliary pump 402 and a second filter 403, the auxiliary pump 402 is positioned between the first filter 401 and the second filter 403, and the first filter 401, the auxiliary pump 402 and the second filter 403 are connected in series through a pipeline. Specifically, the first filter 401 and the second filter 403 both use a cartridge filter with a 1 μ M stainless steel pleated filter, and the diameter of the filter cylinder of the cartridge filter is 108 mm.
Specifically, the cleaning system is not provided with a foam pig and a post-pump filter, the pressure is higher, and the length of the pipe to be cleaned is longer.
The specific cleaning process is as follows:
step one, connecting a hydraulic power device 1, a support shaft 2, a container 3 for recovering cleaning agents and a recycling device 4 together according to the sequence shown in figure 1;
secondly, adding an oil-based cleaning agent or other suitable cleaning agents into the cleaning agent tank 101; in the embodiment, when the pipe to be cleaned is a hydraulic control pipe, an oil-based cleaning agent is selected;
step three, turning on the electric hydraulic pump 102 in the hydraulic power unit 1, and then turning on the auxiliary pump 402 in the recirculation device 4; when the electric hydraulic pump 102 reaches a preset pressure value, slowly opening a valve at a liquid discharge port of the electric hydraulic pump 102 to clean the pipe to be cleaned;
fourthly, observing the cleanness degree of the cleaning agent in the container 3 by naked eyes, and cleaning filter screens on the first filter 401 and the second filter 403; wherein, cleanliness needs to be tested, after each cleaning, the cleanliness of the cleaning agent in the container 3 is tested through the concentration measuring device 103, and the record is made, when the measured cleanliness meets the requirement, the cleaning operation of the pipe to be cleaned is finished.
And repeating the first step to the fourth step until the internal cleanness degree of the pipe 9 to be cleaned reaches the standard.
The cleaning system in the embodiment has a simpler structure, is convenient and quick to install, and has stronger driving power of the electric hydraulic pump 102, so that the cleaning operation of a long pipe to be cleaned is realized.
In addition, the system needs to satisfy the following conditions when in use:
1) the cleaning is carried out in a clean and tidy environment, the environment is kept clean before cleaning in order to reduce pollution to pipelines caused by the surrounding environment, and other operations which are likely to generate dust pollution, such as painting, polishing and the like, are not needed at the periphery in the cleaning process.
2) The working medium of the pump set is oil-based solution.
3) The worker is recommended to use the product at the ambient temperature of more than 0 ℃ and must take protective measures when the temperature is lower than 0 ℃.
4) In order to ensure the cleanness of the inlet medium, a filter is additionally arranged. The precision of filter is 1um to the life of parts such as extension plunger, filler, liquid inlet and outlet valve, and the cleaning performance of assurance pipeline.
5) For subsequent circulation cleaning, a post-filtration device is additionally arranged at the outlet position.
6) The pump package should avoid high load long-term operation in high temperature environment in summer and direct sunlight.
7) The pump unit is inhibited from operating at an inclination greater than 5 degrees.
8) The pump set does not allow overpressure, overtemperature and overload operation, and is prohibited from idling under the condition of no fluid.
9) Lubricating oil is required to be added into a high-pressure pump crankcase according to specified marks, quality and quantity; new oil, old oil and lubricating oil with different grades are strictly forbidden to be mixed for use.
10) The liquid supply pipeline is required to be provided with a filter, a filter element (filter bag) of the water supply filter is forbidden to be removed, and the filter element (filter bag) with the filtering precision lower than the specified filter precision is forbidden, so that the service life and the cleaning effect of the pump are prevented from being influenced by a large amount of solid particles contained in the cleaning agent.
Example 2:
as shown in fig. 2, a pipeline internal cleaning system comprises a hydraulic power device 1, a support shaft 2, a container 3 for recovering cleaning agent and a recirculation device 4, wherein the hydraulic power device 1, the support shaft 2, the container 3 and the recirculation device 4 are sequentially arranged, a pipe 9 to be cleaned is wound on the support shaft 2, and the hydraulic power device 1, the pipe 9 to be cleaned, the container 3 and the recirculation device 4 are communicated together through a pipeline; a high-pressure filter 5 and a foam pipe cleaner 6 are arranged on a pipeline communicated with the hydraulic power device 1 and the pipe 9 to be cleaned, and the high-pressure filter 5 and the foam pipe cleaner 6 are sequentially arranged and communicated through the pipeline; a cleaner catcher 7 and a third filter 8 are arranged on a pipeline for communicating the pipe 9 to be cleaned with the container 3, and the cleaner catcher 7 and the third filter 8 are sequentially arranged and communicated through the pipeline. Specifically, each of the third filters 8 was a cartridge filter having a 1 μ M stainless steel pleated filter, and the diameter of the filter cylinder of the cartridge filter was 108 mm.
The hydraulic power device 1 and the recirculation device 4 have the same mechanism as that of embodiment 1, the hydraulic power device 1 comprises a cleaning agent tank 101 and an electric hydraulic pump 102, the input end of the electric hydraulic pump 102 is communicated with the cleaning agent tank 101, and the output end of the electric hydraulic pump 102 is communicated with the pipe 9 to be cleaned. The cleaning agent tank 101 is provided with a concentration measuring device 103. The recirculation device 4 comprises a first filter 401, an auxiliary pump 402 and a second filter 403, the auxiliary pump 402 is positioned between the first filter 401 and the second filter 403, and the first filter 401, the auxiliary pump 402 and the second filter 403 are connected in series through a pipeline.
In the system, the cleaning degree of the cleaning agent entering the pipe to be cleaned is improved through the increase of the high-pressure filter 5, the cleanliness of the recovered cleaning agent is effectively guaranteed through the increase of the third filter 8, the structure of the system is more complete, and the cleaning degree is higher.
In addition, when the equipment is installed, the filtering device must be installed vertically, that is, the first filter 401, the second filter 403 and the third filter 8 need to be installed vertically; when the pipeline is continuously connected, a pipe cutter is adopted for cutting, burrs at the cut end part are prevented from being ground as far as possible, and if the end part is required to be ground, the port is downward, so that the phenomenon that the ground debris enters the interior of the pipeline to pollute the pipeline is avoided.
The method for cleaning the conventional pipeline internal cleaning system by using the pipeline internal cleaning system comprises the following steps:
step one, putting a clean foam pipe cleaner 6 into a pipe 9 to be cleaned, and then sequentially arranging the hydraulic power device 1, the high-pressure filter 5 and the pipe 9 to be cleaned and communicating the same through a pipeline; a pipeline for communicating the pipe 9 to be cleaned with the container 3 is connected with a cleaner catcher 7 and a third filter 8, and a recirculation device 4 is arranged between the third filter 8 and the hydraulic power device 1;
secondly, adding an oil-based cleaning agent into the cleaning agent tank 101;
step three, turning on the electric hydraulic pump 102 in the hydraulic power unit 1, and then turning on the auxiliary pump 402 in the recirculation device 4; when the electric hydraulic pump 102 reaches a preset pressure value, slowly opening a valve at a liquid discharge port of the electric hydraulic pump 102 to clean the pipe to be cleaned;
step four, after the foam pig 6 enters the pig catcher 7 through the pipe to be cleaned 9, the electric hydraulic pump 102 and the auxiliary pump 402 are closed, the foam pig 6 is detached from the pig catcher 7, the cleanness degree of the foam pig 6 is observed by naked eyes, and the filter screen of the third filter 8 is cleaned; wherein, the foam cleaning device 6 mainly plays a role in wiping foreign matters in the pipe;
and repeating the first step to the fourth step until the internal cleanness degree of the pipe 9 to be cleaned reaches the standard.
In the first step, the foam pipe cleaner 6 adopts EPE polyethylene closed foaming air holes to form a solid foam rod, and has the characteristics of environmental protection, no toxicity, low water absorption, high flexibility and light weight. The diameter of the foam pipe cleaner 6 is 1.5-2.0 times of the inner diameter of the pipe to be cleaned 9.
And (3) a cleanliness test, specifically, a special cleanliness tester is extended into the cleaning agent in the container 3 to test the cleanliness of the flowing cleaning agent, the test is required once every two to three cycles, and the test result is recorded until the product requirement is met.
The system shown in figure 2 is adopted to clean the aviation coiled tubing, oil stains can not be generated in the use process, the internal oil stains are removed through two to three circulations of the solution, then the residual liquid is cleaned to ph6-7 through deionized water, and meanwhile, the cleanliness reaches more than NAS6, and the specific cleaning process is as follows:
1) firstly, preparing trisodium phosphate solution with the concentration of 2% -3% in a cleaning agent tank 101 or a plastic barrel,
the solution must be fully and evenly stirred;
2) pumping trisodium phosphate solution into a continuous pipe by using the electric hydraulic pump 102 for cleaning, adjusting the rotating speed of the electric hydraulic pump 102 to a proper rotating speed (avoiding the leakage of a pressure release valve), circulating five pipeline volumes, stopping, and completely blowing out the solution in the cleaning agent tank 101 and the solution in the container 3 by using high-pressure nitrogen;
3) the deionized water is pumped by the electric hydraulic pump 102, the volume of at least two pipelines is circulated, whether the PH value of the effluent liquid, namely the ionized water in the container 3 is between 6 and 7 is checked, if the requirement of continuous pumping is not met, the process is repeated until the effluent liquid is qualified, and the deionized water is completely blown out by high-pressure nitrogen after the effluent liquid is qualified.
4) 443 or glycol solution is taken out and introduced into a prepared plastic barrel, and the solution is circularly filtered to below 5 grades by a filter (when the requirement of circular filtration is not met until the requirement is met).
5) Pumping the qualified 443 or glycol solution into the tube body, circulating 2 circulating tubes to cut off samples at the outlet, and checking that the granularity grade is less than or equal to 6 grades to be qualified (if the granularity grade is less than the standard, continuously circulating until the granularity grade is qualified).
In addition, the system needs to satisfy the following conditions when in use:
1) the cleaning is carried out in a clean and tidy environment, the environment is kept clean before cleaning in order to reduce pollution to pipelines caused by the surrounding environment, and other operations which are likely to generate dust pollution, such as painting, polishing and the like, are not needed at the periphery in the cleaning process.
2) The working medium of the pump set is water-based solution.
3) The worker is recommended to use the product at the ambient temperature of more than 0 ℃ and must take protective measures when the temperature is lower than 0 ℃.
4) The cleanliness of the inlet medium is ensured, and a filter is required to be additionally arranged. The precision of filter is 1um to the life of parts such as extension plunger, filler, liquid inlet and outlet valve, and the cleaning performance of assurance pipeline.
5) For the subsequent circulation of the cleaning, a post-filtration must be added at the outlet.
6) The pump package should avoid high load long-term operation in high temperature environment in summer and direct sunlight.
7) The pump unit is inhibited from operating at an inclination greater than 5 degrees.
8) The pump set does not allow overpressure, overtemperature and overload operation, and is prohibited from idling under the condition of no fluid.
9) Lubricating oil is required to be added into a high-pressure pump crankcase according to specified marks, quality and quantity; new oil, old oil and lubricating oil with different grades are strictly forbidden to be mixed for use.
10) The liquid supply pipeline is required to be provided with a filter, a filter element (filter bag) of the water supply filter is forbidden to be removed, and the filter element (filter bag) with the filtering precision lower than the specified filter precision is forbidden, so that the service life and the cleaning effect of the pump are prevented from being influenced by a large amount of solid particles contained in the cleaning agent.
Generally speaking, embodiment 1 and embodiment 2 all can realize treating the cleaning operation of scavenge pipe or other slender pipes, and the structure of embodiment 2 has increased the filter compared with embodiment 1 structure, and cleaning effect is better, guarantees that the cleaner that gets into the scavenge pipe is cleaner, and the washing cycle number is few, and cleaning performance is better.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. A system for cleaning the interior of a pipeline is characterized in that: including hydraulic power device (1), back shaft (2), container (3) and recirculation device (4) that the cleaner was retrieved and is used, hydraulic power device (1), back shaft (2), container (3) and recirculation device (4) are arranged in proper order and are set up, treat that scavenge pipe (9) winding is placed on back shaft (2), hydraulic power device (1), treat that scavenge pipe (9), container (3) and recirculation device (4) are in the same place through the pipeline intercommunication.
2. The in-line cleaning system according to claim 1, wherein: the hydraulic power device (1) comprises a cleaning agent groove (101) and an electric hydraulic pump (102), the input end of the electric hydraulic pump (102) is communicated with the cleaning agent groove (101), and the output end of the electric hydraulic pump (102) is communicated with the pipe (9) to be cleaned.
3. The in-line cleaning system according to claim 1, wherein: the recirculation device (4) comprises a first filter (401), an auxiliary pump (402) and a second filter (403), wherein the auxiliary pump (402) is positioned between the first filter (401) and the second filter (403), and the first filter (401), the auxiliary pump (402) and the second filter (403) are connected in series through a pipeline.
4. The in-line cleaning system according to claim 1, wherein: a high-pressure filter (5) and a foam pipe cleaner (6) are arranged on a pipeline communicated with the hydraulic power device (1) and the pipe (9) to be cleaned, and the high-pressure filter (5) and the foam pipe cleaner (6) are sequentially arranged and communicated through the pipeline; a cleaner catcher (7) and a third filter (8) are arranged on a pipeline for communicating the pipe (9) to be cleaned with the container (3), and the cleaner catcher (7) and the third filter (8) are sequentially arranged and communicated through the pipeline.
5. The in-line cleaning system according to claim 3, wherein: the first filter (401) and the second filter (403) both adopt a cartridge filter with a 1 mu M stainless steel folding filter, and the diameter of a filter cylinder of the cartridge filter is 108 mm.
6. The in-line cleaning system according to claim 4, wherein: the third filter (8) is a cartridge filter with a 1 mu M stainless steel pleated filter, the diameter of the filter cylinder of the cartridge filter is 108 mm.
7. An internal cleaning method of a pipeline internal cleaning system is characterized in that: method for cleaning an in-line cleaning system using an in-line cleaning system according to claims 1-6, comprising in particular the steps of:
step one, putting a clean foam pipe cleaner (6) into a pipe (9) to be cleaned, and then sequentially arranging the hydraulic power device (1), the high-pressure filter (5) and the pipe (9) to be cleaned and communicating the hydraulic power device, the high-pressure filter and the pipe through pipelines; a pipeline communicated with the pipe (9) to be cleaned and the container (3) is connected with a cleaner catcher (7) and a third filter (8), and a recirculation device (4) is arranged between the third filter (8) and the hydraulic power device (1);
secondly, adding a cleaning agent into the cleaning agent tank (101);
step three, turning on an electric hydraulic pump (102) in the hydraulic power device (1), and turning on an auxiliary pump (402) in the recirculation device (4); when the electric hydraulic pump (102) reaches a preset pressure value, slowly opening a valve at a liquid discharge port of the electric hydraulic pump (102) to clean the pipe to be cleaned;
fourthly, after the foam pipe cleaner (6) enters the pipe cleaner catcher (7) through the pipe to be cleaned (9), closing the electric hydraulic pump (102) and the auxiliary pump (402), detaching the foam pipe cleaner (6) from the pipe cleaner catcher (7), observing the cleanness degree of the foam pipe cleaner (6) by naked eyes, and cleaning a filter screen of the third filter (8);
and repeating the first step to the fourth step until the internal cleanness degree of the pipe (9) to be cleaned reaches the standard.
8. The method for cleaning the inside of a pipeline inside cleaning system according to claim 7, wherein: in the first step, the foam pipe cleaner (6) adopts EPE polyethylene closed foaming air holes to form a solid foam rod, and the diameter of the foam pipe cleaner (6) is 1.5-2.0 times of the inner diameter of the pipe (9) to be cleaned.
9. The method for cleaning the inside of a pipeline inside cleaning system according to claim 7, wherein: and (3) testing the cleanliness, namely extending the special cleanliness tester into the cleaning agent in the container (3) to test the cleanliness of the flowing cleaning agent, wherein the testing is required to be performed every two to three cycles, and the test result is recorded until the product requirement is met.
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| CN202010473661.1A CN111495894A (en) | 2020-05-29 | 2020-05-29 | Pipeline internal cleaning system and cleaning method thereof |
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| CN202010473661.1A CN111495894A (en) | 2020-05-29 | 2020-05-29 | Pipeline internal cleaning system and cleaning method thereof |
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Cited By (1)
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| CN114602875A (en) * | 2022-02-16 | 2022-06-10 | 无锡恒大电子科技有限公司 | Organic cleaning equipment for MEMS (micro-electromechanical systems) process |
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