CN110976447B - Cleaning method of multi-pipeline system - Google Patents
Cleaning method of multi-pipeline system Download PDFInfo
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- CN110976447B CN110976447B CN201911398179.XA CN201911398179A CN110976447B CN 110976447 B CN110976447 B CN 110976447B CN 201911398179 A CN201911398179 A CN 201911398179A CN 110976447 B CN110976447 B CN 110976447B
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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
- B08B9/0323—Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits
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Abstract
The invention discloses a cleaning method of a multi-pipeline system, and relates to the technical field of pipeline cleaning. The method comprises the steps of splitting a unit to be cleaned, which is simultaneously related to at least one unit to be cleaned, into a main path unit and a branch path unit, classifying the units to be cleaned according to the cleaning requirements of the units to be cleaned, dividing the units to be cleaned with the same cleaning requirements into the same cleaning groups, dividing the main path unit and the branch path unit into the same cleaning modules according to the cleaning groups in which the units to be cleaned with the same association degree are located, respectively connecting the units to be cleaned, the main path unit or the branch path unit in each cleaning group and the cleaning modules, and finally connecting the cleaning modules in parallel to form a closed cycle cleaning loop with a cleaning device. The cleaning method of the multi-pipeline system provided by the invention classifies and connects the units to be cleaned according to the cleaning requirements of the units to be cleaned and the correlation degree of the units, simplifies the pipelines and improves the cleaning efficiency.
Description
Technical Field
The invention relates to the technical field of pipeline cleaning, in particular to a cleaning method of a multi-pipeline system.
Background
Nuclear power stations or large ships are huge in system, many in-house systems and complex in structure, some systems have certain requirements on cleanliness, and need to be cleaned before operation or after operation for a period of time to ensure subsequent normal operation, when the cleanliness of the systems does not meet the requirements, the pipelines of the systems can be corroded after a long time, or when impurities exist in the systems, the impurities can enter narrow and small positions of equipment to damage the equipment.
Because the number of components in a nuclear power plant or a large ship is large, a corresponding cleaning pipeline needs to be constructed for cleaning during cleaning. At present, a hydraulic cleaning mode is generally adopted, equipment of a hydraulic system and related valve pieces are firstly bridged through bridging, and then a main pipe, a branch pipe and the like are respectively cleaned hydraulically after being divided according to actual conditions. The method adopts the mode of firstly cleaning the main pipe, then cleaning the branch pipes and the cabin-dividing system, the pipeline structure of the whole cleaning system is complex, the operation difficulty is high, the cleaning period is long, and time and labor are wasted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a cleaning method of a multi-pipeline system, which is used for classifying and connecting units to be cleaned according to the cleaning requirements of the units to be cleaned and the correlation degree between the units, simplifying pipelines and improving the cleaning efficiency.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
analyzing the association degree between the units to be cleaned, and splitting the units to be cleaned, which are simultaneously associated with at least one unit to be cleaned, into a main road unit and a branch unit;
classifying the units to be cleaned according to the cleaning requirements of the units to be cleaned, dividing the units to be cleaned with the same cleaning requirements into the same cleaning subgroup, and dividing the main road units and the branch road units and the cleaning subgroups where the units to be cleaned with the correlation degrees are located into the same cleaning modules;
the cleaning device comprises a main path unit, a branch unit, cleaning modules, a cleaning device, a water inlet end, a water outlet end, a water return end, a water inlet end, a water outlet end and a water return end, wherein the cleaning modules are connected in series and parallel through cleaning pipelines, the cleaning modules in the same cleaning module are connected in series and series through the main path unit or the branch unit, the cleaning modules are connected in parallel, the water inlet end of each cleaning module is connected with the water supply end of the cleaning device, and the water outlet end of each cleaning module is connected with the water return end of the cleaning device to form a closed circulation cleaning loop.
On the basis of the technical scheme, the cleaning requirement of the unit to be cleaned is the cleaning flow value required for cleaning the corresponding unit to be cleaned.
On the basis of the technical scheme, the units to be cleaned and the units to be cleaned in the same cleaning group are connected with the corresponding main road units or branch units with the correlation degrees by the jumper hoses.
On the basis of the technical scheme, if the pipeline of the unit to be cleaned is an all-welded system pipeline, a reserved cleaning opening is arranged when the unit to be cleaned is installed.
On the basis of the technical scheme, the reserved cleaning opening is connected with the main path unit or the branch unit with the relevance degree with the reserved cleaning opening and other units to be cleaned in the same cleaning group by adopting the polish rod hose.
On the basis of the technical scheme, the clamping sleeve joints are arranged at the two ends of the polish rod hose so as to ensure the firmness of connection.
On the basis of the technical scheme, before the cleaning device is selected, the flow resistance value of each cleaning module is calculated, so that the pump lift of the selected cleaning device is larger than the flow resistance value of each cleaning module.
On the basis of the technical scheme, before the cleaning device is used for cleaning the multi-pipeline system, the total cleaning flow value of each cleaning module is calculated, and the total cleaning flow value of each cleaning module is compared with the water supply flow value of the cleaning device to formulate the cleaning sequence of each cleaning module.
Compared with the prior art, the invention has the advantages that:
the invention provides a cleaning method of a multi-pipeline system, which comprises the steps of firstly analyzing the association degree between units to be cleaned, splitting the units to be cleaned, which are simultaneously associated with at least one unit to be cleaned, to form a main road unit and a branch unit, classifying the units to be cleaned according to the cleaning requirements of the units to be cleaned, dividing the main road unit and the branch unit and a cleaning group where the unit to be cleaned with the association degree is located into the same cleaning module, calculating the flow resistance value of each cleaning module, and selecting a proper cleaning device according to the flow resistance value to form a closed cycle cleaning loop. The corresponding cleaning pipeline of the method has simple structure and high cleaning efficiency, so that the cleaning is convenient and efficient, the cleaning quality can be ensured, and the cleaning medium can be saved.
Drawings
Fig. 1 is a schematic diagram of a multi-pipe system during cleaning according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The embodiment of the invention provides a method for cleaning a multi-pipeline system, which is suitable for cleaning the multi-pipeline system by a cleaning device. The multi-pipeline system comprises a plurality of units to be cleaned, and the method specifically comprises the steps of analyzing the association degree between the units to be cleaned, and splitting the units to be cleaned, which are simultaneously associated with at least one unit to be cleaned, into a main pipeline unit and a branch unit; classifying the units to be cleaned according to the cleaning requirements of the units to be cleaned, dividing the units to be cleaned with the same cleaning requirements into the same cleaning subgroup, and dividing the main road units and the branch road units and the cleaning subgroups where the units to be cleaned with the correlation degrees are located into the same cleaning modules; and finally, connecting the units to be cleaned in each cleaning group in series and parallel through a cleaning pipeline, connecting the cleaning groups in the same cleaning module in series with the main path unit or the branch unit through the cleaning pipeline, connecting the cleaning modules in parallel, connecting the water inlet ends of the cleaning modules with the water supply end of the cleaning device, and connecting the water outlet ends of the cleaning modules with the water return end of the cleaning device to form a closed circulation cleaning loop.
The cleaning requirement of the unit to be cleaned is the cleaning flow value required by cleaning the corresponding unit to be cleaned, so that the units to be cleaned with the same cleaning flow value are divided into the same cleaning group, and the cleaning is convenient. In addition, according to the dividing conditions of the cleaning groups and the cleaning modules, the disconnection positions of the units to be cleaned are determined firstly, then the units to be cleaned are disconnected, and then the units to be cleaned and the units to be cleaned in the same cleaning group are connected with the corresponding main road units or branch road units with the relevance degrees with the units to be cleaned by adopting the jumper hoses to construct the cleaning modules. The cleaning modules are connected in parallel, so that the water supply end of the cleaning device is connected with the water inlet pipeline of each cleaning module through different water supply ports, the water outlet pipelines of the cleaning modules are finally gathered to the main water return pipeline, and the main water return pipeline is connected with the water return port of the water return end of the cleaning device to form a closed circulation cleaning loop, so that efficient cleaning is realized.
Furthermore, when the pipeline of the unit to be cleaned is bridged, a jumper hose with a flange or a threaded joint is adopted for the pipeline of a detachable joint such as a flange and a threaded joint for bridging; if the pipeline of the unit to be cleaned is an all-welded system pipeline, namely, the pipeline is not provided with a detachable joint, a reserved cleaning opening is arranged when the unit to be cleaned is installed, meanwhile, a polished rod hose with the same diameter is adopted to connect the reserved cleaning opening with a road unit or a shunt unit with the degree of association and other units to be cleaned in the same cleaning group, and a bridging joint is connected by a Stewart joint or a cutting sleeve joint, so that the risks of cleanliness damage, waste return of a pipe section and the like caused by repeated cutting and welding are avoided.
Further, before selecting the cleaning device, the flow resistance value of each cleaning module is calculated, so that the pump lift of the selected cleaning device is larger than the flow resistance value of each cleaning module. In addition, before the cleaning device is used for cleaning the multi-pipeline system, the total cleaning flow value of each cleaning module is calculated, and the total cleaning flow value of each cleaning module is compared with the water supply flow value of the cleaning device to set the cleaning sequence of each cleaning module.
The method is described with reference to fig. 1 as an example. The multi-pipeline system comprises A, B, C, D, E, F, G, I units to be cleaned, firstly, units to be cleaned are found out according to the operation principle and the connection relation of each unit to be cleaned, and the units to be cleaned, which are simultaneously related to at least one unit to be cleaned, are split to form a main branch unit and a branch unit. Specifically, a part of pipeline of the unit to be cleaned C is related to the unit to be cleaned A, a part of pipeline of the unit to be cleaned E is related to the unit to be cleaned F, and a part of pipeline of the unit to be cleaned D is related to the units to be cleaned C and F. Then, the pipelines associated with the unit to be cleaned C and the unit to be cleaned A are split to form a main pipeline unit C and a branch pipeline unit C, the pipelines associated with the unit to be cleaned F in the unit to be cleaned E are split to form a main pipeline unit E and a branch pipeline unit E, and the pipelines associated with the units to be cleaned C and the unit to be cleaned F in the unit to be cleaned D are split to form a main pipeline unit D and a branch pipeline unit D. A. B, C, D, E, F, I the unit to be cleaned is divided into unit A to be cleaned, unit B to be cleaned, main path unit C, branch unit C, main path unit D, branch unit D, main path unit E, branch unit E, unit F to be cleaned, unit G to be cleaned, and unit I to be cleaned.
And analyzing the cleaning flow values of the units to be cleaned, classifying the units to be cleaned, and dividing the cleaning flow values which are basically the same into the same group to form a plurality of cleaning subgroups. Wherein the cleaning flow value of any branch unit is smaller than that of the main unit or the complete unit. Analyzing A, B, C, D, E, F, G, I the magnitude of the cleaning flow value of the unit to be cleaned, for example, the cleaning flow value of the unit to be cleaned A is Q1, the cleaning flow value of the unit to be cleaned B is Q1, the cleaning flow value of the unit to be cleaned C is Q2, the cleaning flow value of the unit to be cleaned D is Q3, the cleaning flow value of the unit to be cleaned E is Q4, the cleaning flow value of the unit to be cleaned F is Q2, the cleaning flow value of the unit to be cleaned G is (Q3+ Q4), and the cleaning flow value of the unit to be cleaned I is about Q2. According to the mode that a system with the basically same cleaning flow values is divided into the same cleaning group, the units to be cleaned A and B are classified into the same cleaning group, the units to be cleaned C, F and I are classified into the same cleaning group, and the sum of the cleaning flow values of the units to be cleaned D and E is equal to that of the unit to be cleaned G, so that the unit to be cleaned D, E is connected in parallel and then connected in series with the unit to be cleaned G, and the unit to be cleaned D, E and the unit to be cleaned G are classified into the same cleaning group. And respectively merging the branch unit C, the branch unit D and the branch unit E into the corresponding cleaning modules according to the running trend of the correlation degree.
And the cleaning sub groups in the same cleaning module are connected in series with the main path unit or the branch unit through the cleaning pipelines. The method comprises the steps of firstly calculating the total cleaning flow value of each cleaning module, comparing the total cleaning flow value of each cleaning module with the water supply flow value of a cleaning device, analyzing whether each cleaning module formed after series-parallel connection is proper or not, or selecting a proper cleaning device according to the flow and the flow resistance of each cleaning module. If the direction of the unit to be cleaned B in the same cleaning group is biased to the downstream of the unit to be cleaned A, then the unit to be cleaned A is connected with the unit to be cleaned B in series, the total flow resistance of the unit to be cleaned A and the unit to be cleaned B after the unit to be cleaned A and the unit to be cleaned B are calculated to be R1+ R2, and the comparison with the pump head R of the cleaning device shows that R1+ R2 is smaller than R, and then the unit to be cleaned A and the unit to be cleaned B can be cleaned in series. And similarly, analyzing the walking direction of each unit to be cleaned in other cleaning groups, determining the serial and parallel connection mode and the sequence of the units to be cleaned in each cleaning group, comparing the total flow resistance of the cleaning module with the pump lift in the cleaning device, and determining the rationality of the cleaning module.
According to the dividing conditions of the cleaning groups and the cleaning modules, the disconnection positions of the units to be cleaned are determined, the units to be cleaned are disconnected, and the units to be cleaned in the same cleaning group are connected with the corresponding main road units or branch road units with the relevance degrees by adopting the jumper hoses to construct the cleaning modules. If the water outlet of the unit to be cleaned A is connected with the morning water inlet of the unit to be cleaned B, the water inlet of the main road unit D, E is connected, the outlet of the unit to be cleaned G is connected with the unit to be cleaned F, the water outlet of the unit to be cleaned F is connected with the water inlet of the unit to be cleaned I, and the water outlet of the unit to be cleaned I is connected with the water inlet of the main road unit C, so that the cleaning module is formed in a bridging mode. All the cleaning modules are connected in parallel, and a closed circulation cleaning loop is formed between each cleaning module and the cleaning device, so that efficient cleaning is realized.
Before the cleaning device is used for cleaning the multi-pipeline system, the total cleaning flow value of each cleaning module is calculated, and the total cleaning flow value of each cleaning module is compared with the water supply flow value of the cleaning device to set the cleaning sequence of each cleaning module. Referring to fig. 1, the cleaning flow values of the three cleaning modules from top to bottom are respectively Q1, Q2 and Q3+ Q4, the relationship between the cleaning flow values and the water supply capacity Q of the cleaning device is analyzed, and if (Q1+ Q2+ Q3+ Q4) < Q, the three cleaning modules can be cleaned together; if (Q1+ Q2+ Q3+ Q4) > Q, comparing the relations between different combined flow rates of the cleaning modules, such as Q1+ Q2, Q1+ Q3+ Q4, Q2+ Q3+ Q4 and Q, if the combined flow rate is smaller than Q, the cleaning modules can be combined for cleaning together.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone with the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, are within the protection scope.
Claims (6)
1. A cleaning method of a multi-pipeline system, which is suitable for a cleaning device to clean the multi-pipeline system, wherein the multi-pipeline system comprises a plurality of units to be cleaned, and is characterized by comprising the following steps:
analyzing the association degree between the units to be cleaned, and splitting the units to be cleaned, which are simultaneously associated with at least one unit to be cleaned, into a main road unit and a branch unit;
classifying the units to be cleaned according to the cleaning requirements of the units to be cleaned, dividing the units to be cleaned with the same cleaning requirements into the same cleaning group, and dividing the main road units and the branch road units and the cleaning group of the units to be cleaned with the correlation degrees into the same cleaning module respectively, wherein the cleaning requirements of the units to be cleaned are cleaning flow values required for cleaning the corresponding units to be cleaned;
the cleaning device comprises cleaning units to be cleaned in each cleaning group, a main path unit or a branch unit, a water inlet end of each cleaning module, a water outlet end of each cleaning module, a water return end of the cleaning device and a water outlet end of each cleaning module, wherein the units to be cleaned in each cleaning group are connected in series and parallel through cleaning pipelines, the units to be cleaned in the same cleaning group are connected with the corresponding main path unit or branch unit with the relevance degree with the units to be cleaned by adopting jumper hoses, and finally the cleaning modules are connected in parallel, the water inlet end of each cleaning module is connected with the water supply end of the cleaning device, and the water outlet end of each cleaning module is connected with the water return end of the cleaning device to form a closed circulation cleaning loop.
2. A method of cleaning a multi-conduit system as defined in claim 1, wherein: if the pipeline of the unit to be cleaned is an all-welded system pipeline, a reserved cleaning opening is arranged when the unit to be cleaned is installed.
3. A method of cleaning a multi-pipe system as claimed in claim 2, wherein: and the reserved cleaning opening is connected with a main road unit or a branch unit with correlation degree with the reserved cleaning opening and other units to be cleaned in the same cleaning group by using a polish rod hose.
4. A method of cleaning a multi-conduit system as defined in claim 3, wherein: the clamping sleeve joints are arranged at the two ends of the polish rod hose to ensure the firmness of connection.
5. A method of cleaning a multi-conduit system as defined in claim 1, wherein: before selecting the cleaning device, the flow resistance value of each cleaning module is calculated, so that the pump lift of the selected cleaning device is larger than the flow resistance value of each cleaning module.
6. A method of cleaning a multi-conduit system as defined in claim 1, wherein: before the cleaning device is used for cleaning the multi-pipeline system, the total cleaning flow value of each cleaning module is calculated, and the total cleaning flow value of each cleaning module is compared with the water supply flow value of the cleaning device to set the cleaning sequence of each cleaning module.
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CN200975381Y (en) * | 2006-12-01 | 2007-11-14 | 渤海船舶重工有限责任公司 | Ship hydraulic system swap oil unit |
CN203292142U (en) * | 2013-05-17 | 2013-11-20 | 中国海洋石油总公司 | High-cleanliness string washing device for underwater production pipeline |
CN207641955U (en) * | 2017-11-27 | 2018-07-24 | 安徽菁硕科技有限公司 | A kind of blood processing line CIP cleaning systems |
US10159377B2 (en) * | 2011-11-01 | 2018-12-25 | Pepsico, Inc. | Cold plasma sanitation for a dispensing machine |
CN208472195U (en) * | 2018-04-20 | 2019-02-05 | 国家能源集团谏壁发电厂 | A kind of electric generator rotor coil water loop acid dip pickle |
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2019
- 2019-12-30 CN CN201911398179.XA patent/CN110976447B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN200975381Y (en) * | 2006-12-01 | 2007-11-14 | 渤海船舶重工有限责任公司 | Ship hydraulic system swap oil unit |
US10159377B2 (en) * | 2011-11-01 | 2018-12-25 | Pepsico, Inc. | Cold plasma sanitation for a dispensing machine |
CN203292142U (en) * | 2013-05-17 | 2013-11-20 | 中国海洋石油总公司 | High-cleanliness string washing device for underwater production pipeline |
CN207641955U (en) * | 2017-11-27 | 2018-07-24 | 安徽菁硕科技有限公司 | A kind of blood processing line CIP cleaning systems |
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