CN102700681A - Method for washing hydraulic system pipeline of engineering ship - Google Patents
Method for washing hydraulic system pipeline of engineering ship Download PDFInfo
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- CN102700681A CN102700681A CN2012102340348A CN201210234034A CN102700681A CN 102700681 A CN102700681 A CN 102700681A CN 2012102340348 A CN2012102340348 A CN 2012102340348A CN 201210234034 A CN201210234034 A CN 201210234034A CN 102700681 A CN102700681 A CN 102700681A
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- hydraulic system
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- system pipeline
- pressure
- pipeline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The invention discloses a method for washing a hydraulic system pipeline of an engineering ship. The method comprises the following steps of: (a) aerating nitrogen with a certain pressure to the hydraulic system pipeline, and if no leakage condition is found, completely releasing pressure and recovering the nitrogen; (b) connecting the hydraulic system pipeline with a port of a washing pump by a high pressure soft pipe, and pouring oil into the hydraulic system pipeline subjected to pressure testing by the nitrogen for observing in a pressure pressurized by the nitrogen through the washing pump, and releasing the pressure until the pressure of the pipeline is qualified; (c) pressing the oil in an oil cabinet of a pump station into the hydraulic system pipeline qualified after pressure testing for washing the pipeline by the washing pump; and (d) washing the hydraulic system pipeline, then connecting an oil inlet of an online detecting instrument to an oil return end of the hydraulic system pipeline, connecting an oil return port of the instrument to the oil cabinet, online detecting and observing detected data, and if printed data continuously meets detection standards, finishing washing of the hydraulic system pipeline. By utilizing the method, the difficult problem of long time for washing the hydraulic system pipeline is thoroughly solved.
Description
Technical field
The present invention relates to a kind of flushing of pipeline method, relate in particular to the engineering ship Pipeline Flushing Method for Hydraulic System.
Background technology
In producing and repairing the hydraulic system of ship pipeline construction, the hydraulic system pipeline flushing is even more important.But there is defective in traditional construction process inside.Traditional pipe is delivered for a check before making the back weldering; Postwelding spark-out press pump is delivered for a check; The installation of going on board after acid washing phosphorization is handled; Connect with steel tube pumping plant again and carry out press pump; The oil that has leakage maintaining need bleed off in the pipeline keeps in repair again; After the maintenance again press pump leak again again and drain the oil; The qualified afterflush pipeline of press pump, in the flushing oil temperature high need to wash again heat again after own cooling of oil temperature in the pumping plant and cool off again; The professional unit that need draw oil sample after one road pipe flushing detects, and detects the qualified flushing of carrying out next road pipe again, and nonconformity also continues; It is qualified to repeat up to all flushing of pipeline.Above step has restricted the link time of flow process, not only useless power, waste material but also when useless and have a waste raw MAT'L situation.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of and save time, the engineering ship Pipeline Flushing Method for Hydraulic System of laborsaving economical with materials again.
Engineering ship Pipeline Flushing Method for Hydraulic System of the present invention, it may further comprise the steps:
(a) use nitrogen in hydraulic system pipeline, to fill the nitrogen of set pressure, used junction, soaked access tube road whether seepage phenomenon and pressurize are arranged, have the seepage situation that the complete pressure release of nitrogen is reclaimed as not finding;
(b) hydraulic system pipeline links to each other with the interface of flushing pump through high pressure hose; Inject through hydraulic system pipeline nitrogen pressure testing after with the pressure of nitrogen pressurising oil and observe through flushing pump; There is not the seepage situation again oil pressure to be increased to complete pressure testing value if find; If when finding in the pressurization that there is the seepage situation pipeline junction and need pulls down maintenance; Use nitrogen that the oil in the hydraulic system pipeline is blown back in the pumping plant after the pressure release, reuse the pump oiling after the maintenance until the qualified back pressure release of line pressure;
(c) through flushing pump the oil in the pumping plant Oil Tank is squeezed into the hydraulic system pipeline of pressure testing after qualified to flushing of pipeline; Adopt the cooling water coil in the pumping plant qualified to guarantee the oil temperature simultaneously when surpassing limit value like the oil temperature in the Oil Tank in the flushing to the Oil Tank cooling of pumping plant;
(d) flushing is no less than 2 hours to hydraulic system pipeline; Then the oil inlet of on-line detector device is connected to the oil revolving end of hydraulic system pipeline and the detector return opening is connected on the Oil Tank; The logical power supply of going up begins online detection; Observe and detect data such as the continuous coincidence detection standard of print data, finish the flushing of this hydraulic system pipeline;
(e) will wash hydraulic system pipeline in-to-in irreducible oil after qualified uses nitrogen to blow back in the Oil Tank of pumping plant and being connected of dismounting and flushing pump.
Adopt the beneficial effect of the inventive method to be: to adopt this method to bring into play splendid effect, thereby thoroughly solved the long difficult problem of hydraulic system pipeline flush time for the Hydraulic Drive in Vessel flushing of pipeline.Utilize bottled nitrogen medium as test medium in addition, changed traditional oil-out repeatedly maintenance mode, both cost-cutting was easy and simple to handle again, for having brought into play splendid leading role in green shipbuilding theory, energy-saving and emission-reduction and environmental protection aspect.Also have in the flushing of pipeline online detection to improve more and deliver for a check efficient, for last one program of flushing laid a good foundation.The inventive method is applicable to hinge suction, bucket wheel, side drag, backhoe, opens engineering ship Pipeline Flushing Method for Hydraulic System such as body hopper, jolly boat.Also be suitable for tugboat, the flushing of collecting and distributing cargo ship hydraulic system pipeline in addition.
The specific embodiment
Below in conjunction with concrete embodiment the present invention is done further explanation:
Engineering ship Pipeline Flushing Method for Hydraulic System of the present invention; It may further comprise the steps: (a) use nitrogen in hydraulic system pipeline, to fill the nitrogen of set pressure; Used junction, soaked access tube road whether seepage phenomenon and pressurize are arranged, had the seepage situation that the complete pressure release of nitrogen is reclaimed as not finding; (b) hydraulic system pipeline links to each other with the interface of flushing pump through high pressure hose; Inject through hydraulic system pipeline nitrogen pressure testing after with the pressure of nitrogen pressurising oil and observe through flushing pump; There is not the seepage situation again oil pressure to be increased to complete pressure testing value if find; If when finding in the pressurization that there is the seepage situation pipeline junction and need pulls down maintenance; Use nitrogen that the oil in the hydraulic system pipeline is blown back in the pumping plant after the pressure release, reuse the pump oiling after the maintenance until the qualified back pressure release of line pressure; (c) through flushing pump the oil in the pumping plant Oil Tank is squeezed into the hydraulic system pipeline of pressure testing after qualified to flushing of pipeline; Adopt the cooling water coil in the pumping plant qualified to guarantee the oil temperature simultaneously when surpassing limit value like the oil temperature in the Oil Tank in the flushing to the Oil Tank cooling of pumping plant; (d) flushing can not be less than 2 hours to hydraulic system pipeline; The oil inlet of on-line detector device is connected to the oil revolving end of hydraulic system pipeline and the detector return opening is connected on the Oil Tank; The logical power supply of going up begins online detection; Observe and detect data such as the continuous coincidence detection standard of print data, finish the flushing of this hydraulic system pipeline; (e) will wash hydraulic system pipeline in-to-in irreducible oil after qualified uses nitrogen to blow back in the Oil Tank of pumping plant and being connected of dismounting and flushing pump.
Embodiment 1
(a) use nitrogen in hydraulic system pipeline, to fill the nitrogen of 8MPa pressure, used junction, soaked access tube road whether seepage phenomenon and pressurize are arranged, do not find to have the seepage situation that the complete pressure release of nitrogen is reclaimed; (b) hydraulic system pipeline links to each other with the interface of flushing pump through high pressure hose; Inject through hydraulic system pipeline nitrogen pressure testing after with 8MPa oil and observe through flushing pump; Not finding has the seepage situation again oil pressure to be increased to 15MPa; Find seepage, use nitrogen that the oil in the hydraulic system pipeline is blown back in the pumping plant after the pressure release, reuse pump oiling pressure release after line pressure reaches 38MPa after the maintenance; (c) through flushing pump the oil in the pumping plant Oil Tank is squeezed into the hydraulic system pipeline of pressure testing after qualified to flushing of pipeline; Adopt the cooling water coil in the pumping plant qualified to guarantee the oil temperature simultaneously when surpassing 75 degrees centigrade like the oil temperature in the Oil Tank in the flushing to the Oil Tank cooling of pumping plant; (d) to after the hydraulic system pipeline flushing 2.2 hours; The oil inlet of on-line detector device is connected to the oil revolving end of hydraulic system pipeline and the detector return opening is connected on the Oil Tank; The logical power supply of going up begins online detection, observes and detects data, and print data is below the NAS7 level; The coincidence detection standard finishes the flushing of this hydraulic system pipeline continuously; (e) will wash hydraulic system pipeline in-to-in irreducible oil after qualified uses nitrogen to blow back in the Oil Tank of pumping plant and being connected of dismounting and flushing pump.
Adopt this method to compare time decreased 30 days through test with orthodox method, annual surplus cost has reduced by 50 aspect the hydraulic system of ship flushing line ten thousand yuan.
Claims (1)
1. engineering ship Pipeline Flushing Method for Hydraulic System is characterized in that it may further comprise the steps:
(a) use nitrogen in hydraulic system pipeline, to fill the nitrogen of set pressure, used junction, soaked access tube road whether seepage phenomenon and pressurize are arranged, have the seepage situation that the complete pressure release of nitrogen is reclaimed as not finding;
(b) hydraulic system pipeline links to each other with the interface of flushing pump through high pressure hose; Inject through hydraulic system pipeline nitrogen pressure testing after with the pressure of nitrogen pressurising oil and observe through flushing pump; There is not the seepage situation again oil pressure to be increased to complete pressure testing value if find; If when finding in the pressurization that there is the seepage situation pipeline junction and need pulls down maintenance; Use nitrogen that the oil in the hydraulic system pipeline is blown back in the pumping plant after the pressure release, reuse the pump oiling after the maintenance until the qualified back pressure release of line pressure;
(c) through flushing pump the oil in the pumping plant Oil Tank is squeezed into the hydraulic system pipeline of pressure testing after qualified to flushing of pipeline; Adopt the cooling water coil in the pumping plant qualified to guarantee the oil temperature simultaneously when surpassing limit value like the oil temperature in the Oil Tank in the flushing to the Oil Tank cooling of pumping plant;
(d) flushing is no less than 2 hours to hydraulic system pipeline; Then the oil inlet of on-line detector device is connected to the oil revolving end of hydraulic system pipeline and the detector return opening is connected on the Oil Tank; The logical power supply of going up begins online detection; Observe and detect data such as the continuous coincidence detection standard of print data, finish the flushing of this hydraulic system pipeline;
(e) will wash hydraulic system pipeline in-to-in irreducible oil after qualified uses nitrogen to blow back in the Oil Tank of pumping plant and being connected of dismounting and flushing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102340348A CN102700681A (en) | 2012-07-06 | 2012-07-06 | Method for washing hydraulic system pipeline of engineering ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102340348A CN102700681A (en) | 2012-07-06 | 2012-07-06 | Method for washing hydraulic system pipeline of engineering ship |
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| Publication Number | Publication Date |
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| CN102700681A true CN102700681A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102340348A Pending CN102700681A (en) | 2012-07-06 | 2012-07-06 | Method for washing hydraulic system pipeline of engineering ship |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988003065A1 (en) * | 1986-10-23 | 1988-05-05 | Sundholm Goeran | An apparatus for flushing small-diameter hydraulic pipe systems and the like |
| RU1341847C (en) * | 1986-02-12 | 1993-10-30 | Предприятие П/Я А-7179 | Method of pipeline cleaning |
| CN2490351Y (en) * | 2001-07-26 | 2002-05-08 | 同济大学 | Automatic cleaning equipment for hydraulic system pipe line |
| CN102371259A (en) * | 2010-08-18 | 2012-03-14 | 中冶天工集团有限公司 | On-line oil washing process for hydraulic pipeline |
-
2012
- 2012-07-06 CN CN2012102340348A patent/CN102700681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1341847C (en) * | 1986-02-12 | 1993-10-30 | Предприятие П/Я А-7179 | Method of pipeline cleaning |
| WO1988003065A1 (en) * | 1986-10-23 | 1988-05-05 | Sundholm Goeran | An apparatus for flushing small-diameter hydraulic pipe systems and the like |
| CN2490351Y (en) * | 2001-07-26 | 2002-05-08 | 同济大学 | Automatic cleaning equipment for hydraulic system pipe line |
| CN102371259A (en) * | 2010-08-18 | 2012-03-14 | 中冶天工集团有限公司 | On-line oil washing process for hydraulic pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 李元成: "液压系统管道循环冲洗施工技术", 《工业建筑》, vol. 41, 20 July 2011 (2011-07-20) * |
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Application publication date: 20121003 |