CN113894114A - Cleaning equipment suitable for large-size pipeline and cleaning method thereof - Google Patents
Cleaning equipment suitable for large-size pipeline and cleaning method thereof Download PDFInfo
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- CN113894114A CN113894114A CN202111090136.2A CN202111090136A CN113894114A CN 113894114 A CN113894114 A CN 113894114A CN 202111090136 A CN202111090136 A CN 202111090136A CN 113894114 A CN113894114 A CN 113894114A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 68
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 238000000861 blow drying Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 70
- 238000001035 drying Methods 0.000 description 13
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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
- B08B9/0326—Using pulsations
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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
- B08B9/0325—Control mechanisms therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/20—Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/003—Supply-air or gas filters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to the technical field of pipeline cleaning, and discloses a cleaning device suitable for large-size pipelines and a cleaning method thereof, wherein the cleaning device comprises an oil tank, a liquid inlet pipeline, a liquid return pipeline and a control module; the liquid inlet pipeline is respectively connected with an oil tank and a liquid inlet of the pipeline to be cleaned, and the liquid return pipeline is respectively connected with the oil tank and a liquid outlet of the pipeline to be cleaned; the liquid inlet pipeline comprises a screw pump, a one-way valve, a first logic valve and a first ball valve which are connected in sequence; the first logic valve is connected with a shuttle valve and a first reversing valve, and the shuttle valve and the first reversing valve are used for controlling the on-off of the first logic valve; the liquid outlet of the first reversing valve is connected with the oil tank; a second ball valve is arranged on the liquid return pipeline; the control module is respectively and electrically connected with the screw pump, the first ball valve, the first reversing valve, the shuttle valve and the second ball valve. The invention can maintain pressure and pulse scour the pipeline, improve cleaning effect, protect the main pump from being polluted and damaged, and improve cleaning efficiency.
Description
Technical Field
The invention relates to the technical field of pipeline cleaning, in particular to cleaning equipment suitable for large-size pipelines and a cleaning method thereof.
Background
Along with the development of society, the capability of equipment is lean again all the time, the energy-saving direction is developed, the large-scale press is the same, the specification of the pipeline is gradually increased along with the increase of tonnage, the requirement on the cleanliness of the pipeline is extremely high, once accidents such as pollutant abrasion sealing, cylinder barrels, valve cores are stuck and the like occur, the loss is immeasurable, the traditional large-scale pipeline (the outer diameter is more than 42mm) cleaning mode is rag drawing, or 32/46 hydraulic oil is used for closed-loop serial washing, the cleanliness can not meet the requirements of customers completely, and serious accidents of pump damage can be caused.
Wherein the cleaning cloth draws cleanliness not up to standard, and scratch inner wall easily, and adopt hydraulic oil cluster to wash, must treat the pipeline equipment completion back, the hydraulic oil of using the system from the area carries out cluster and washes, carries out cluster with main component and valve block short circuit and washes, but can cause the hydraulic pump to bear the erosion of pollution, causes the accident that the main pump burns out, has reduced assembly efficiency moreover, simultaneously because 32/46 hydraulic oil viscosity is higher, leads to the liquid flow rate on the low side, and the cleaning performance of singly washing in cluster is limited.
Disclosure of Invention
The invention aims to provide cleaning equipment and a cleaning method thereof, which are suitable for large-size pipelines, can perform pressure maintaining and pulse scouring on the pipelines, improve the cleaning effect, protect a main pump from being polluted and damaged, and improve the cleaning efficiency.
In order to solve the technical problem, the invention provides cleaning equipment suitable for large-size pipelines, which comprises an oil tank, a liquid inlet pipeline, a liquid return pipeline and a control module, wherein the oil tank is connected with the liquid inlet pipeline; the liquid inlet pipeline is respectively connected with an oil tank and a liquid inlet of the pipeline to be cleaned, and the liquid return pipeline is respectively connected with the oil tank and a liquid outlet of the pipeline to be cleaned;
the liquid inlet pipeline comprises a screw pump, a one-way valve, a first logic valve and a first ball valve which are connected in sequence; the first logic valve is connected with a shuttle valve and a first reversing valve, and the shuttle valve and the first reversing valve are used for controlling the on-off of the first logic valve; the liquid outlet of the first reversing valve is connected with the oil tank; a second ball valve is arranged on the liquid return pipeline; the control module is respectively and electrically connected with the screw pump, the first ball valve, the first reversing valve, the shuttle valve and the second ball valve.
Preferably, the cleaning device further comprises a pressurizing pipeline, the pressurizing pipeline comprises a pressurizing pump and a third ball valve, one end of the pressurizing pump is connected with the oil tank, the other end of the pressurizing pump is connected with the third ball valve, and the third ball valve is connected with a liquid inlet of the pipeline to be cleaned; the booster pump and the third ball valve are electrically connected with the control module.
Preferably, the booster pump is connected with a first overflow valve, and the first overflow valve is connected with the oil tank.
Preferably, the check valve is connected with a second overflow valve, and the second overflow valve is connected with the oil tank.
Preferably, the drying device further comprises a drying pipeline, wherein the drying pipeline comprises an air supply device and an electromagnetic valve, the air supply device is connected with the electromagnetic valve, and the electromagnetic valve is connected with the first ball valve; the solenoid valve is electrically connected with the control module.
Preferably, the check valve is connected with a second logic valve, the second logic valve is connected with an oil tank and a second reversing valve, a liquid outlet of the second reversing valve is connected with the oil tank, and the second reversing valve is used for controlling the on-off of the second logic valve; the second reversing valve is electrically connected with the control module.
The invention also provides a cleaning method, which comprises the following steps:
s1, the control module controls the screw pump to pump out oil in the oil tank, and the oil passes through the one-way valve and then reaches the first logic valve;
s2, enabling the oil to enter a pipeline to be cleaned after passing through the first logic valve and the ball valve;
s3, the control module controls the first ball valve and the second ball valve to be closed, so that the pressure of the pipeline to be cleaned is maintained;
s4, after the pressure maintaining is finished, the control module controls the first ball valve and the second ball valve to be opened;
s5, the control module controls the shuttle valve to change the liquid inlet direction, then controls the first reversing valve to switch between the power-on state and the power-off state, and switches the first logic valve back and forth between the opening state and the closing state, so that oil entering a pipeline to be cleaned generates pulse waves to flush the interior of the pipeline;
and S6, closing the equipment after the flushing is finished.
Preferably, the cleaning device further comprises a pressurizing pipeline, the pressurizing pipeline comprises a pressurizing pump and a third ball valve, one end of the pressurizing pump is connected with the oil tank, the other end of the pressurizing pump is connected with the third ball valve, and the third ball valve is connected with a liquid inlet of the pipeline to be cleaned; the booster pump and the third ball valve are electrically connected with the control module; and in the step S3, the control module further controls the third ball valve to open, the booster pump conveys booster oil to the pipeline to be cleaned, the pressure reaches a preset value, and the third ball valve is closed.
Preferably, the drying device further comprises a drying pipeline, wherein the drying pipeline comprises an air supply device and an electromagnetic valve, the air supply device is connected with the electromagnetic valve, and the electromagnetic valve is connected with the first ball valve; the electromagnetic valve is electrically connected with the control module; and after the flushing in the step S6 is finished, the control module controls the electromagnetic valve to be opened, and the air supply device blows air to the pipeline to be cleaned to blow out residual oil in the pipeline to be cleaned.
Preferably, the pressure maintaining time is 25-40 s.
The invention has the following beneficial effects:
after cleaning oil is introduced into a pipeline to be cleaned, the control module controls the first ball valve and the second ball valve to perform pressure maintaining on the pipeline to be cleaned, the control module can be used for detecting the compression resistance degree and leakage of the pipeline to be cleaned, after the pressure maintaining is finished, the first ball valve and the second ball valve are opened to discharge the oil in the pipeline to be cleaned, and the pipeline to be cleaned is continuously flushed and is primarily cleaned; then, the circulating switch of the first logic valve can be controlled by the shuttle valve and the first reversing valve to carry out pulse flushing in the pipeline to be cleaned, so that the interior of the pipeline to be cleaned is further cleaned, and the cleaning effect and efficiency are ensured; in addition, the pipe wall of the pipeline to be cleaned can be protected, and the safety of the hydraulic pump can also be protected.
Drawings
FIG. 1 is a schematic diagram of an oil path structure of a cleaning device suitable for large-size pipelines, provided by an embodiment of the invention;
FIG. 2 is an enlarged view of A1 in FIG. 1;
fig. 3 is an enlarged view of a2 structure in fig. 1.
Reference numerals:
1. an oil tank; 2. a screw pump; 3. a one-way valve; 4. a first logic valve; 5. a first ball valve; 6. a shuttle valve; 7. a first direction changing valve; 8. a second ball valve; 9. a booster pump; 10. a third ball valve; 11. a first overflow valve; 12. a second overflow valve; 13. a gas supply device; 14. an electromagnetic valve; 15. a second logic valve; 16. a second directional control valve; 17. a pipeline.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 and 2, a cleaning apparatus suitable for a large-sized pipeline according to a preferred embodiment of the present invention includes an oil tank 1, a liquid inlet pipeline, a liquid return pipeline, and a control module (not shown); the liquid inlet pipeline is respectively connected with an oil tank and a liquid inlet of the pipeline 17 to be cleaned, and the liquid return pipeline is respectively connected with the oil tank 1 and a liquid outlet of the pipeline 17 to be cleaned;
the liquid inlet pipeline comprises a screw pump 2, a one-way valve 3, a first logic valve 4 and a first ball valve 5 which are connected in sequence; the first logic valve 4 is connected with a shuttle valve 6 and a first reversing valve 7, and the shuttle valve 6 and the first reversing valve 7 are used for controlling the on-off of the first logic valve 4; a liquid outlet of the first reversing valve 7 is connected with the oil tank 1; a second ball valve 8 is arranged on the liquid return pipeline; the control module is respectively and electrically connected with the screw pump 2, the first ball valve 5, the first reversing valve 7, the shuttle valve 6 and the second ball valve 8.
It should be noted that a pressure sensor may be disposed in the pipe 17 to be cleaned, and the pressure sensor is electrically connected to the control module. The first reversing valve 7 comprises an A port, a B port, a P port and a T port, and the shuttle valve 6 comprises a first liquid inlet and a second liquid inlet; a liquid inlet of the first logic valve 4 is connected with the one-way valve 3, a liquid outlet of the first logic valve 4 is connected with the first ball valve 5, and a control port of the first logic valve 4 is connected with a port B of the first reversing valve 7; a first liquid inlet of the shuttle valve 6 is connected with a liquid outlet of the first logic valve 4, a second liquid inlet of the shuttle valve 6 is connected with the one-way valve 3, and a liquid outlet of the shuttle valve 6 is connected with a P port of the first reversing valve 7; and a T port of the first reversing valve 7 is connected with the oil tank 1.
Specifically, when the first logic valve 4 needs to be in an open state, the first reversing valve 7 is powered off, the first liquid inlet of the shuttle valve 6 is in an open state, the second liquid inlet is in a closed state, and the pressure of the liquid inlet of the first logic valve 4 is greater than that of the control port, so that the first logic valve 4 is opened; when the first logic valve 4 is required to be in a closed state, the first reversing valve 7 is electrified, the first liquid inlet of the shuttle valve 6 is closed, the second liquid inlet is opened, and the pressure of the liquid inlet of the first logic valve 4 is smaller than that of the control port, so that the first logic valve 4 is closed. Therefore, pulse flushing needs to be realized, and only the first reversing valve 7 needs to be continuously switched back and forth between power-on and power-off, so that the first logic valve 4 can be switched back and forth between opening and closing.
In some preferred embodiments of the present invention, the present invention further comprises a pressurization pipeline, the pressurization pipeline comprises a pressurization pump 9 and a third ball valve 10, one end of the pressurization pump 9 is connected to the oil tank 1, the other end thereof is connected to the third ball valve 10, and the third ball valve 10 is connected to a liquid inlet of the pipe 17 to be cleaned; the booster pump 9 and the third ball valve 10 are electrically connected with the control module. Specifically, the cleaning of large-specification pipelines 17 can be further met by adopting a pressurization pipeline, so that the cleaning effect is better, the efficiency is higher, and meanwhile, the screw pump 2 can be lightened, namely the pressure and specification requirements of the main pump can be met, so that the main pump can be protected, and the cost of equipment can be saved.
In some preferred embodiments of the present invention, the booster pump 9 is connected to a first overflow valve 11, and the first overflow valve 11 is connected to the oil tank 1. Specifically, the first overflow valve 11 is used for maintaining the pressure of the pressurization pipeline, and when the pressure reaches a preset parameter, oil is leaked back to the oil tank 1. The preset parameter is 70 MPA.
In some preferred embodiments of the present invention, the check valve 3 is connected to a second overflow valve 12, and the second overflow valve 12 is connected to the oil tank 1. Specifically, the second overflow valve 12 is used to maintain the pressure of the liquid inlet line, and when the pressure reaches a preset parameter, the oil is leaked back to the oil tank 1.
In some preferred embodiments of the present invention, the drying device further comprises a drying pipeline, the drying pipeline comprises an air supply device 13 and an electromagnetic valve 14, the air supply device 13 is connected to the electromagnetic valve 14, and the electromagnetic valve 14 is connected to the first ball valve 5; the solenoid valve 14 is electrically connected to the control module. Specifically, the blow-dry pipeline is used for blow-drying the interior of the pipeline 17 to be cleaned and blowing residual oil inside the pipeline back to the oil tank 1 after the pipeline is flushed.
Referring to fig. 3, in some preferred embodiments of the present invention, a second logic valve 15 is connected to the check valve 3, the second logic valve 15 connects the oil tank 1 and a second direction valve 16, a liquid outlet of the second direction valve 16 is connected to the oil tank 1, and the second direction valve 16 is used for controlling the on/off of the second logic valve 15; the second directional valve 16 is electrically connected to the control module. Specifically, when the pressure of the pipeline 17 to be cleaned is maintained, the second logic valve 15 is controlled to be opened through the second reversing valve 16, so that the oil directly returns to the oil tank 1, the pressure of the second overflow valve 12 and the pressure of the first logic valve 4 are reduced, and the second overflow valve 12 and the first logic valve 4 are protected.
It is worth to say that the screw rod book, the one-way valve 3, the first ball valve 5 and the second ball valve 8 are at least two and are all arranged in parallel.
The working principle of the cleaning equipment is as follows:
pressure maintaining: according to the invention, two 37Kw motors are adopted to drive a screw pump 2, oil enters a first logic valve 4 after passing through a one-way valve 3, the oil enters a shuttle valve 6 through an oil way, as a control port at the top of the first logic valve 4 is directly communicated with a port B, the port B is communicated with an oil tank 1, the pressure at the top of the first logic valve 4 is 0, and the liquid inlet of the first logic valve 4 has pressure, the oil overcomes the resistance of a valve core spring to push a valve core open, the oil passes through the first logic valve 4, meanwhile, the first ball valve 5 is opened, the second ball valve 8 and the third ball valve 10 are closed, the pipeline 17 to be cleaned starts to be flushed with the liquid, after the flushing delay time is 10s, the first ball valve 5 is closed, the electromagnet of the second reversing valve 16 is electrified, the second logic valve 15 is opened, and the oil flows back to the oil tank 1 through the second logic valve 15.
Supercharging: in order to further meet the pressure maintaining requirement of the large-size pipeline 17, a pressurizing pipeline is adopted, wherein the pressurizing pump 9 starts to work, liquid is filled into the pipeline 17 to be cleaned, when the pressure reaches a set value, a sensor feeds back a signal to the system to cut off a pneumatic reversing valve of the pressurizing pump 9, and when the pressure exceeds 70MPA, pressure oil leaks back to the oil tank 1 through the first overflow valve 11.
Continuous flushing: when the oil pressure in the pipeline 17 to be cleaned is maintained for 30s, the third ball valve 10 is opened to release the system pressure, the first ball valve 5 is completely opened, the electromagnet of the second reversing valve 16 is powered off, the screw and/or the booster pump 9 begin to flush the pipeline to be cleaned, and after flushing, the oil directly returns to the oil tank 1.
Pulse flushing: after the continuous flushing is finished, the electromagnet of the first reversing valve 7 starts to be electrified, a ball in the shuttle valve 6 is jacked to the right end by pressure, the upper pressure and the lower pressure of the first logic valve 4 are consistent, because the top stress area of the first row logic valve is larger than that of the bottom, the valve core of the first logic valve 4 is locked, oil overflows to the oil tank 1 through the second overflow valve 12, when the electromagnet of the first reversing valve 7 is quickly powered off, the valve core of the first logic valve 4 is opened, because the valve core of the first logic valve 4 is quickly switched between closing and opening, the oil can generate pulse waves, stubborn residual impurities on the inner wall of the pipeline 17 to be cleaned, pollutants in the corner groove are flushed out and brought back to the oil tank 1 to be filtered, and the interior of the pipeline 17 is ensured to be clean.
Drying: after the pipeline 17 is flushed, the electromagnetic valve 14 is powered on, the air supply device 13 introduces filtered compressed air into the pipeline 17 to be cleaned, residual oil in the pipeline 17 is blown back to the oil tank 1, meanwhile, the oil in the pipeline 17 is blown clean, and after a set time, the equipment is shut down.
The preferred embodiment of the present invention also provides a cleaning method comprising the steps of:
s1, the control module controls the screw pump 2 to pump out oil in the oil tank 1, and the oil passes through the one-way valve 3 and then reaches the first logic valve 4;
s2, enabling the oil to enter the pipeline 17 to be cleaned after passing through the first logic valve 4 and the ball valve;
s3, the control module controls the first ball valve 5 and the second ball valve 8 to be closed, so that the pressure of the pipeline 17 to be cleaned is maintained;
s4, after the pressure maintaining is finished, the control module controls the first ball valve 5 and the second ball valve 8 to be opened;
s5, the control module controls the shuttle valve 6 to change the liquid inlet direction, then controls the first reversing valve 7 to switch between the power-on state and the power-off state, and switches the first logic valve 4 back and forth between the opening state and the closing state, so that oil entering the pipeline 17 to be cleaned generates pulse waves to flush the interior of the pipeline 17;
and S6, closing the equipment after the flushing is finished.
In some preferred embodiments of the present invention, the present invention further comprises a pressurization pipeline, the pressurization pipeline comprises a pressurization pump 9 and a third ball valve 10, one end of the pressurization pump 9 is connected to the oil tank 1, the other end thereof is connected to the third ball valve 10, and the third ball valve 10 is connected to a liquid inlet of the pipe 17 to be cleaned; the booster pump 9 and the third ball valve 10 are electrically connected with the control module; in the step S3, the control module further controls the third ball valve 10 to open, the booster pump 9 delivers the booster oil to the pipe 17 to be cleaned, the pressure reaches a preset value, and the third ball valve 10 is closed.
In some preferred embodiments of the present invention, the drying device further comprises a drying pipeline, the drying pipeline comprises an air supply device 13 and an electromagnetic valve 14, the air supply device 13 is connected to the electromagnetic valve 14, and the electromagnetic valve 14 is connected to the first ball valve 5; the electromagnetic valve 14 is electrically connected with the control module; after the flushing in step S6 is completed, the control module controls the electromagnetic valve 14 to open, and the air supply device 13 blows air into the pipe 17 to be cleaned, so as to blow out residual oil inside the pipe 17 to be cleaned.
In some preferred embodiments of the present invention, the pressure holding time is 25-40 s.
In summary, a preferred embodiment of the present invention provides a cleaning apparatus suitable for large scale pipes, which, compared to the prior art:
after cleaning oil is introduced into the pipeline 17 to be cleaned, the control module controls the first ball valve 5 and the second ball valve 8 to perform pressure maintaining on the pipeline, the pressure maintaining module can be used for detecting the compression resistance degree and leakage of the pipeline 17 to be cleaned, after the pressure maintaining is finished, the first ball valve 5 and the second ball valve 8 are opened to discharge the oil in the pipeline 17 to be cleaned, and the pipeline 17 to be cleaned is continuously flushed to perform preliminary cleaning; then, the circulating switch of the first logic valve 4 can be controlled by the shuttle valve 6 and the first reversing valve 7 to carry out pulse flushing in the pipeline 17 to be cleaned, so that the interior of the pipeline 17 to be cleaned is further cleaned, and the cleaning effect and efficiency are ensured; furthermore, the wall of the pipe 17 to be cleaned can be protected, as well as the safety of the hydraulic pump.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A cleaning device suitable for large-sized pipelines is characterized by comprising an oil tank, a liquid inlet pipeline, a liquid return pipeline and a control module; the liquid inlet pipeline is respectively connected with an oil tank and a liquid inlet of the pipeline to be cleaned, and the liquid return pipeline is respectively connected with the oil tank and a liquid outlet of the pipeline to be cleaned;
the liquid inlet pipeline comprises a screw pump, a one-way valve, a first logic valve and a first ball valve which are connected in sequence; the first logic valve is connected with a shuttle valve and a first reversing valve, and the shuttle valve and the first reversing valve are used for controlling the on-off of the first logic valve; the liquid outlet of the first reversing valve is connected with the oil tank; a second ball valve is arranged on the liquid return pipeline; the control module is respectively and electrically connected with the screw pump, the first ball valve, the first reversing valve, the shuttle valve and the second ball valve.
2. The cleaning apparatus suitable for large format pipes of claim 1, wherein: the cleaning device further comprises a pressurizing pipeline, wherein the pressurizing pipeline comprises a pressurizing pump and a third ball valve, one end of the pressurizing pump is connected with the oil tank, the other end of the pressurizing pump is connected with the third ball valve, and the third ball valve is connected with a liquid inlet of the pipeline to be cleaned; the booster pump and the third ball valve are electrically connected with the control module.
3. The cleaning apparatus suitable for large format pipes of claim 2, wherein: the booster pump is connected with a first overflow valve, and the first overflow valve is connected with the oil tank.
4. The cleaning apparatus suitable for large format pipes of claim 1, wherein: the check valve is connected with a second overflow valve, and the second overflow valve is connected with the oil tank.
5. The cleaning apparatus suitable for large format pipes of claim 1, wherein: the blow-drying pipeline comprises an air supply device and an electromagnetic valve, the air supply device is connected with the electromagnetic valve, and the electromagnetic valve is connected with the first ball valve; the solenoid valve is electrically connected with the control module.
6. The cleaning apparatus suitable for large format pipes of claim 1, wherein: the one-way valve is connected with a second logic valve, the second logic valve is connected with an oil tank and a second reversing valve, a liquid outlet of the second reversing valve is connected with the oil tank, and the second reversing valve is used for controlling the on-off of the second logic valve; the second reversing valve is electrically connected with the control module.
7. A method of cleaning apparatus suitable for large format ducting as claimed in any one of claims 1 to 6, comprising the steps of:
s1, the control module controls the screw pump to pump out oil in the oil tank, and the oil passes through the one-way valve and then reaches the first logic valve;
s2, enabling the oil to enter a pipeline to be cleaned after passing through the first logic valve and the ball valve;
s3, the control module controls the first ball valve and the second ball valve to be closed, so that the pressure of the pipeline to be cleaned is maintained;
s4, after the pressure maintaining is finished, the control module controls the first ball valve and the second ball valve to be opened;
s5, the control module controls the shuttle valve to change the liquid inlet direction, then controls the first reversing valve to switch between the power-on state and the power-off state, and switches the first logic valve back and forth between the opening state and the closing state, so that oil entering a pipeline to be cleaned generates pulse waves to flush the interior of the pipeline;
and S6, closing the equipment after the flushing is finished.
8. The cleaning method of claim 7, wherein: the cleaning device further comprises a pressurizing pipeline, wherein the pressurizing pipeline comprises a pressurizing pump and a third ball valve, one end of the pressurizing pump is connected with the oil tank, the other end of the pressurizing pump is connected with the third ball valve, and the third ball valve is connected with a liquid inlet of the pipeline to be cleaned; the booster pump and the third ball valve are electrically connected with the control module; and in the step S3, the control module further controls the third ball valve to open, the booster pump conveys booster oil to the pipeline to be cleaned, the pressure reaches a preset value, and the third ball valve is closed.
9. The cleaning method of claim 7, wherein: the blow-drying pipeline comprises an air supply device and an electromagnetic valve, the air supply device is connected with the electromagnetic valve, and the electromagnetic valve is connected with the first ball valve; the electromagnetic valve is electrically connected with the control module; and after the flushing in the step S6 is finished, the control module controls the electromagnetic valve to be opened, and the air supply device blows air to the pipeline to be cleaned to blow out residual oil in the pipeline to be cleaned.
10. The cleaning method of claim 7, wherein: and the pressure maintaining time is 25-40 s.
Priority Applications (1)
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| CN113323945A (en) * | 2021-05-23 | 2021-08-31 | 常州杜尔博流体技术有限公司 | High cleanliness hydraulic pipeline cleaning system |
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| DE4125315A1 (en) * | 1991-07-31 | 1993-02-04 | Oertzen Arndt H Gmbh & Co | Equipment for cleaning water pipes etc. - delivers alternate water and air pulses from injector pump whose mixer tube is uncovered as float controlled water level drops in container |
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