• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    K78 P6OSE LO / KOE Summary The invention relates to a method for rudder flushing of hydraulic systems (3) internally through flow of said hydraulic system (3) with fluid (4) in flow of at least Re 2300 (Reynolds). According to the invention, in the used system (2) the input motor (5), pump (6) and the desired degree of purification are regulated with a control unit (1) by feedback of engine speed, fuel flow, oil temperature and degree of contamination via particle counter (23). This provides automatic purification of the oil (4) or of other fluid used in a so-called closed loop system with the control unit (1) automatically challenging corrections according to a predetermined desired end result of the degree of purification before the approved result report is delivered. The invention also relates to a plant (2) for carrying out said method.
    公开号:SE1450616A1
    申请号:SE1450616
    申请日:2014-05-23
    公开日:2015-11-24
    发明作者:Tobias Ahlberg；Karl Johan Stjärna
    申请人:Tts Marine Ab；
    IPC主号:
    专利说明:

    1 Procedure for rudder flushing of hydraulic systems and installation thereof.
    The present invention relates to a process for flushing hydraulic systems internally by flowing said hydraulic system with fluid in a flow of at least Re 2300 (Reynolds).
    Rudder flushing, i.e. sealing of hydraulic systems internally according to known procedures in connection with a fluid in turbulent flow of at least Re 3000 is available i.a. 10 pA so that you measure the degree of contamination of the fluid with e.g. particle calculators according to ISO 4406: 1999 or NAS 1648 or other similar procedures. There are problems with rudder systems for hydraulic systems to be able to safely and efficiently get all parts of the ship in working order in a short time and with good results.
    Since the advent of modern hydraulics in the 70s and 80s, it has proven globally to be very problematic to complete a correct flushing. This manifests itself in the form of hydraulic breakdowns, varnishing seals, damaged and fixed valves, etc., which leads to high repair costs and disappointed customers which leads to reduced supplier confidence.
    On board e.g. vessels, all delivery of prefabricated and installed vessels must be flushed 25 all hydraulically maneuvered ramps, gates, car decks and hatches and which have at least double pipe sections. Each pipe section Waste is then connected to and from the current flushing station to undergo the intended flushing. In total, it can exceed several hundred individual flushes for each vessel, which can take over a month to claim. This thus justifies an automation.
    The root cause is the predominant lack of knowledge in the field of flushing technology together with the often underestimated importance of a clean system. It is also shown how black and costly it actually is to repair a contaminated system afterwards, which is even possible without complete component replacements.
    It is also important that the operator performing the work has access to a station with enough capacity to deliver the required flow. This particular has proved to be very worrying as very few users are able to dimension which motor and pump etc is required to perform a flushing that meets at least Re 3000.
    Re 3000 is the internationally accepted river flow for the Andamalet but Oven Re 4000 occurs.
    In order to verify the capacity of an existing station, the above calculation skills with hydraulics are required, which the operator often does not possess or can be required for.
    The above is an international problem that continuously affects the major OEM manufacturers, for example the offshore & marine sector.
    The main object of the present invention is therefore primarily to solve e.g. above-mentioned problems, and achieve shorter flushing times, automated flushing and automatic logging of the obtained values in contrast to the current manual procedure.
    Said andamil is achieved by means of a method according to the present invention, which is mainly characterized by the fact that with a control unit which regulates the engine, pump and desired degree of purification in the utilized plant by means of reconnection of engine speed, oil flow and oil temperature, automatic purification of the pipes is achieved. 30 in a so-called closed loop system with corrections automatically performed by the control unit to maintain at least a predetermined value of Re (Reynolds number) after 3 predetermined desired end results of the purification rate, before the approved result report is delivered.
    The invention also relates to a plant for carrying out a procedure of the type indicated above in a safe, good and cost-effective manner.
    A said plant can be drawn i.a. that the control unit included in the system comprises means which make it possible to control the motor, pump and desired degree of purification in said system, that said control unit is arranged to receive the value from feedback of engine speed, oil flow and oil temperature, and that said control unit is arranged. automatic purification of the oil in a so-called closed loop system, whereby the control unit includes means that make it possible to perform automatic corrections on the plant according to a predetermined desired end result of the degree of purification, before the approved result report is delivered.
    According to the present invention, the knowledge regarding the flushing is now transferred from the operators to a control unit for carrying out said method for the rudder flushing and to a plant for carrying out said method according to the invention. Said control unit can be constituted by software used in a computer and according to the invention the intended cleaning of the pipes is achieved with the aid of oil or other fluid in a so-called closed loop system unlike previously used "open loop system".
    According to the invention, the knowledge is now transferred from the user to the software and offers a very simple user interface 14.
    The software uses a number of mathematical formulas to regulate the outflow of the pumps so that at least Re 3000 or 4000 river flow is always delivered regardless of the fluid temperature and pipe size at the same time as the built-in mentee this manually. In the best case, you can tame the particle calculator for information, but this only shows the degree of contamination and not the simultaneous oil surface which could have proved that the pipes are clean and not just the oil.
    Incredibly time-consuming logging work.
    It is very easy for the operator to create a misleading and positive report which can then be used against OEMs to get rid of any warranty problems.
    Costly to build di alit will be large and will soon take off financially.
    High operating cost.
    In the case of traditional flushing, the oil temperature should have been the factor that the operator could at best influence to increase the rudder length during vigorous washing or because you wanted Reynolds' speech. This is often not sufficient and pumping station replacement is therefore the solution.
    • Traditionally requires several external costly instruments to perform the work.
    According to the present invention, the process is now carried out according to a "closed loop system", which means that the method and system according to the invention show feedback from the end result and which allow the liter or other entered information in a relevant control unit 1 to perform intended corrected, corrected, procedures for to achieve the predetermined result that Onskas achieves.
    According to the invention, e.g. the following benefits: 6 Feedback to software as shown above for operator in touch panel / user interface.
    Generates only the frictional heat that the oil drum produces. This applies throughout the rudder register.
    Smaller electric motor and pump are required so you can now score speeds up to 3700 rpm.
    Provides considerably smaller construction dimension and which makes it possible to move with pallet loaders. Increases mobility with a considerably more compact design compared to well-known plants on the market that have the same or higher effect. Dimension and weight are now possible, among other things. air transport.
    The operator does not need to make any installations on the equipment in which the software handles the flushing.
    Extremely added operating noise thanks to the use of special pumps e.g. wing pumps and through thoughtful tank design. Logs all flushes and shows the results in user interfaces where you can see how the oil goes from dirty oil to pure oil. When printing, you get all the necessary data with a unique identity number that shows, among other things. date, time, rudder dimension and name etc. 0Results history is saved in user interfaces and can easily be transferred to e.g. Flash / USB memory.
    It is not possible to manipulate the results and you do not get a good result cm cm Flood Or for laid.
    Thus, only the oil is prevented from being clean but the pipes are dirty, as Or so commonly occurs today. 7 Economically advantageous alternative, through fewer and cheaper components.
    Low operating costs in relation to traditional technology thanks to lower power consumption flakes.
    Viscosity feeders may be provided whereby the flushing plant can be extended to be used for other fluids and other hydraulic systems.
    The invention is described below with reference to the accompanying drawings, in which, Fig. 1 shows a schematic cross-section of a plant according to the invention, and Fig. 2 shows a block diagram of the plant and the method thus used.
    A procedure requires the implementation of so-called rudder flushing of hydraulic system 3 internally by effecting flow of said hydraulic system 3 with fluid 4 in flow of at least Re 2300 (Reynolds) is performed according to the present invention in such a way that automatic purification of the hydraulic tubes is effected by means of the oil 4 or other suitable fluid which is used for this purpose in a so-called closed loop system. Selected rudder size in user interface 14 and with the help of a control unit 1, 25 which regulates in a used system 2 input motor 5, pump 6 and desired degree of purification, feedback of the motor 6 or motors 6 speed, turbulent oil flow and oil temperature is achieved.
    The invention according to "closed loop" comprises the steps given below.
    I.The operator selects rudder size in user interface 14. 8 With rudder size selection, the control unit 1 regulates motor 5 and pump 6.
    Temperature sensor, particle counter 23, the oil flow from frequency converter 17 is connected to the control unit 1.
    IV.The control unit 1 deals with the parameters in said point III and regulates heating elements 16, frequency converter 17 and cooling fan 25 to maintain at least Re 2300. 10 V.When desired degree of purity of fluid, and thus above in the hydraulic pipes, an approved report is presented in the user interface 14 .
    Darvid Or intended corrections of said rbrflushing automatically challenge by the control unit 1 after 15 predetermined Desired end result of the degree of purification. This ensures feedback of the food values to a software or other suitable control aid in said control unit 1 and which in turn controls so that desired parameters are achieved automatically in a system 2, 20 before the approved result report is delivered. It viii saga without the involvement of any people and manual adjustment. The flushes in question are conveniently logged so that the purification process can be followed in Iran from start to finish and with the possibility of accomplishing the removal of the desired data from the plant 2 at the desired schedule and need thereof. For example, unique numbers can show e.g. date, time, rudder dimension, place, name, etc. Obtained results Or arranged to be able to be saved in e.g. an internal memory in the facility 2 or in another way and can be extracted via e.g. USB memory 30 or to another socket. For example, you can take screenshots to email Over to central for e.g. Tech Support. 9 In said software or in another steering wheel alp-medal, a number of mathematical formulas are used to enable the raft to regulate that the surface of the pumps in question is the desired one and to also ensure that the river flow is always achieved and that the end result of the purification is checked before the approval of the purification is given. It is provided that the approval result of the purification is made possible to be given only when the surface through the tubes 3A reaches a certain certain minimum flow value. 10 Of course, provided that other necessary parameters for the purification are invented above. Danger start is entered dimension of the user interface 14 on the rails 3A used in the hydraulic system 3 intended to be controlled.
    Darvid can e.g. grant flashlight announce 15 that completed program is good. Furthermore, a red flashlight can notify installation errors and stops the machine irreversibly, and indicates a specific alarm in the user interface 14.
    Saved logging curves can be studied directly in user interfaces.
    The user can determine the file name of the log file that is saved in internal memory.
    The rotational direction is correct on electric motors independent of phase connection.
    • Ails motors are protected against overload.
    Nadstopp is available locally and with the possibility of remote stops via cable.
    Built-in function can be available for filling / emptying the tank, with a power connection function that can, for example, an oil barrel or empty to protect against the pump running dry. Several return filters may be available with selectors to continue working without stopping the filter change.
    Boost Flush may be arranged to be able to be carried out, i.e. a mode that is activated by the operator and where the system gives full effect, i.e. more than is needed to achieve maximum flow in the rudder in a shorter time. Said "Boost Flush" is used when it is suspected that there is an extra high degree of contamination of hydraulic systems.
    A plant 2, which is arranged for carrying out a method of the above-mentioned type for effecting the flow of hydraulic system 3 internally by effecting the flow of said hydraulic system with fluid in flow of at least Re 2300 (Reynolds), comprises a intended control unit 1 with dari ingenende means that mbjligg to control i.a. input motor 5, pump 6, and desired degree of purification. Said control unit 1 Or thereby arranged to receive the value from Feedback of engine speed, degree of contamination, oil flow and oil temperature 20 from the average sum. The control unit 1 is further arranged to ensure that automatic purification of the oil takes place in a closed loop system and comprises means enabling automatic corrections to be made on the plant 2 after a predetermined desired end result of the degree of purification of the purified oil in the intended connected hydraulic system 3 and its lines. 3A, before the approved results report is delivered.
    The control unit 1 contains software or other control aids that Or has arranged to control so that the desired parameters are achieved.
    Units included in said installation 2 Or enclosed in a compact stand 8 with a tacking cutter 9 externally darpA and Or lampat to be handled with the aid of 11 e.g. one or more forklifts or with other suitable lifting and / or means of transport, e.g. pallet truck or crane. Furthermore, there is a tank 10 for receiving fluid at the bottom of the plant 2 and with drive and control units therefor located on top and / or on the side of the tank 10.
    Couplings 11 for pressure and return hoses 12, 13 for controlled fluid 4 are connected to the system 2. In the system 2 there are, as for example shown in Fig. 1, user interface 14 with touch panel for installation of desired functions, obtained results and for removal by writing and / or data of obtained results and / or for input of data files to control programs in the system 2. Furthermore, means for selection of filter 15. 15 Control unit 1 makes it possible to alarm in case of dirty filter 15 and selection of pump / pumps 6, motor / motors 5, degree of filling of the oil 4 in the tank 10, heating element 16 for heating the oil 4 in the tank 10, cooling surface 24 for cooling the oil 4 in the tank 10, and controls for start and stop. Also a number of 20 frequency inverters 17 for the motors 5, e.g. vane pumps 6 and several different systems for rudder water, pressure test and hydraulic control in the plant 2. Means for logging flow of fluid, pressure sensor 25, temperature 18, time, viscosity, flushing time, particle tracker status, 25 number of approved feed oil levels etc. in a said program for rudvatt.
    In a program for pressure testing of means there are means for logging pressure, pressure curve and display thereof and in a program for hydraulic process there are means for running hydraulic equipment and means for selecting maximum hydraulic pressure and maximum flow of the fluid. Also means for providing standby heating of the oil and fault coupling means for protecting personnel and 12 plant against fault coupling etc in the plant 2 ingar dari.
    Maximum pressure is 420 bar during pressure test.
    Ramps up the pressure to avoid pressure surges.
    Automatically releases the pressure in case a rudder should rupture during pressure test or filling phase.
    Easy to select Desired print in user interface 14.
    • Logs the pressure curve and shows it with e.g. 60 minutes history.
    Software etc for the plant 2 includes description pages for operation of the plant 2 as well as information on parts thereof, such as e.g. filter type, service points, etc. in user interface 14.
    The nature and function of the plant 2 should now have been clearly understood on the basis of the above and that shown in the drawings. A said plant 2, which is compact and relatively light, for example weighs 20 to just over 1 ton and doubles with a full tank 10, has the dimensions of approximately 1.8 x 1.25 x 1.6 m.
    When starting the process after connecting the hydraulic system 3 to the system 2 in a loop via the connections 11, the oil 4 is first heated to the right temperature in the tank 10 and standby heat can be present in the system to minimize heating time at low temperatures, for example in winter. When the oil 4 is fed via electrical cables 19, 19A, it can be seen with the help of particle counter 23 how the purity values of the oil 30 change and the result can be read in diagrams on user interface 14. Data is stored automatically in the system and can be extracted via USB memory or another bnskvart sat. 13 Incoming return oil is led via a filter 15 to the tank 10 via pipes 20. During washing of the system 3, the purified oil is led out to the system 3 again via outgoing pipes 21 and which pipes 20, 21 enter into said "closed loop 5 system".
    Washes rOr according to RE 2300, 3000 & 4000. Max river ax 322 1 / min.
    Can handle at least rudder diameters between 8-70 mm, which is the most common dimensions Thom hydraulics but also larger rudder diameters.
    The software takes care of the flushing and ensures that river flow is always Re 2300, 3000 or 4000 or Boost Flush.
    If the flood would not be sufficient due to. external factors, there are built-in functions in the software with ready-made solutions so that the operator only faces very simple choices and can continue the work.
    Fast flushing through good filter technology.
    Possibility to choose between Re 2300, 3000 and 4000 and Boost Flush.
    Possibility to follow oil viscosities Logs flow, pressure, temp, time, viscosity (theoretical), flushing time, particle counter status, number of approved feeds, oil level, loop number etc.
    At oil colder than 5 ° C, the station provides 50 1 / min to protect the pumps against cavitation. When oil has risen to operating temperature (> 5 ° C), the system returns to normal operation.
    When pressure testing the system 3 and its tubes in it, testing can take place up to about 4 14 bar. When the oil 4 becomes too hot, cooling fans 24 were set on and the oil 4 was cooled.
    A hydraulic system can be driven by the system if required. The maximum pressure is 250 bar and the maximum flow is 80 liters / min.
    Safety equipment is of course present in the system 2 to operate automatically during () normal} corning, as if an oil pipe should burst, in the event of incorrect connections or in the event of incorrect maneuvers, etc. The system 2 is arranged to handle washed pipes with a larger diameter than 8 mm, but at least most commonly on ships using rudder dimensions such as Or pA between 8-70mm in diameter test pressure installed rudder system 50-420 bar and used as a traditional pumping station and hence meet the most hydraulic needs that exist mom e.g. offshore and marine manufacturing industry with superior performance and user standard compared to kanda traditional systems harfor. 1. Control unit 20 2. system hydraulic system fluid (oil) motor pump (wing pumps) 25 7.closed loop system stand kapa tank couplings 30 12.Pressure and return hoses touch panel / user interface filter heating element frequency converter temperature & 19A. power cable to oil tank incoming pipeline outgoing pipeline power cable to particle calculator particle calculator oil cooler pressure sensor Function and nature of the invention should have been clearly understood from the above and with knowledge of what the IDA drawings showed but the invention is of course not limited to the above described and the rltningar showed the designs. Modifications are possible, especially when it comes to the nature of the various parts, or by using equivalent technology, without departing from the scope of the invention as defined in the claims. 16
    权利要求:
    Claims (4)
    [1]
    1. The operator does not need to make any installations on the equipment in which the software handles the flushing. 2. Powerfully added operating noise thanks to the use of special pumps e.g. wing pumps and through thoughtful tank design. Logs all flushes and shows the results in user interfaces where you can see how the oil goes from dirty oil to pure oil. When printing, you get all the necessary data with a unique identity number that shows, among other things. date, time, rudder dimension and name etc. 0Results history is saved in user interfaces and can easily be transferred to e.g. Flash / USB memory.
    [2]
    2. It is not possible to manipulate the results and you do not get a good result cm cm Flood Or for laid. Thus, only the oil is prevented from being clean but the pipes are dirty, as Or so commonly occurs today. 7
    [3]
    Economically advantageous alternative, through fewer and cheaper components.
    [4]
    4. Low operating costs in relation to traditional technology thanks to lower power consumption flakes. Viscosity feeders may be provided whereby the flushing plant can be extended to be used for other fluids and other hydraulic systems. The invention is described below with reference to the accompanying drawings in which,
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT79058T|1986-10-23|1992-08-15|Goeran Sundholm|RINSING DEVICE FOR HYDRAULIC TUBE SYSTEMS WITH A SMALL DIAMETER AND THE LIKE.|
    DK172595B1|1997-03-18|1999-02-08|Ocean Team Scandinavia As|Method for internal cleaning of a pipe system in a fluid system and plant for use in the method|
    US6767408B2|2002-12-18|2004-07-27|Hydrite Chemical Co.|Monitoring device and method for operating clean-in-place system|
    CN101386012B|2007-09-12|2011-07-20|中国二十冶集团有限公司|Hydraulic, lubrication piling gas-liquid mixing purging method|
    CN101543825B|2009-03-30|2011-01-12|中国第一冶金建设有限责任公司|Closed self-circulation hydraulic pipeline flusher|
    KR101173395B1|2009-05-28|2012-08-10|웅진코웨이주식회사|Washing device for water treatment apparatus|
    CN201676855U|2010-04-13|2010-12-22|郑州润达电力清洗有限公司|Large-flow washing system for lubricant pipeline of turbogenerator of power plant|
    KR20110134106A|2010-06-08|2011-12-14|삼성중공업 주식회사|Portable hydraulic circuit plushing apparatus|
    CN102896121B|2012-10-24|2014-09-17|广东粤海控股有限公司|Water hammer type pipeline washing method|
    CN203338096U|2013-06-17|2013-12-11|上海上水自来水特种工程有限公司|A data acquisition and control system achieving a pipeline flushing function|CN109513700B|2018-12-19|2021-10-15|朱淮兵|Pipeline cleaning method|
    法律状态:
    优先权:
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    SE1450616A|SE538171C2|2014-05-23|2014-05-23|Procedure for pipe washing of hydraulic systems and system for this|SE1450616A| SE538171C2|2014-05-23|2014-05-23|Procedure for pipe washing of hydraulic systems and system for this|
    CN201580026834.2A| CN106573278B|2014-05-23|2015-03-31|For rinsing the process in the pipeline of hydraulic system and the equipment for flushing|
    KR1020167034044A| KR20170012291A|2014-05-23|2015-03-31|Proceeding for flushing of pipes at hydraulic systems and a plant for the flushing|
    PCT/SE2015/050402| WO2015178818A1|2014-05-23|2015-03-31|Proceeding for flushing of pipes at hydraulic systems and a plant for the flushing|
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