EP2440983A2 - Installation de remplissage de flexibles de revêtement (liner) - Google Patents

Installation de remplissage de flexibles de revêtement (liner)

Info

Publication number
EP2440983A2
EP2440983A2 EP10722912A EP10722912A EP2440983A2 EP 2440983 A2 EP2440983 A2 EP 2440983A2 EP 10722912 A EP10722912 A EP 10722912A EP 10722912 A EP10722912 A EP 10722912A EP 2440983 A2 EP2440983 A2 EP 2440983A2
Authority
EP
European Patent Office
Prior art keywords
pumps
control unit
plant
liner
mixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10722912A
Other languages
German (de)
English (en)
Inventor
Stefan Schonert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2440983A2 publication Critical patent/EP2440983A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components

Definitions

  • This invention relates to a plant for the filling of liner hoses (liner) with epoxy resin and its hardeners for the subsequent resining.
  • the plant is designed as a special feature as a combination plant, which allows depending on the design, both the mixing, the refueling as well as the circulation of resin and hardener in one circulation, as is currently required.
  • a pipe or a sewer line is rehabilitated by means of a lining hose
  • a tube made of a textile material, a felt, a needle felt, or glass or polyester fibers is introduced into a defective pipeline.
  • the tubing is previously impregnated with a suitable resin by, for example, drawing the tubing through a bath or pumping the resin through apertures in the outside with a sealed film coated tubing, which is subsequently pulled through a sizing roll.
  • the tube is cut on its upper side in the longitudinal direction over a few centimeters, so that a slot is formed, and it is a nozzle which is mounted at the front end of a pump hose, inserted through this slot into the tube interior, which then against the conveying direction in the hose protrudes.
  • a batch of resin-hardener mixture is pumped into the hose interior. It forms with the pumping of the resin mixture into the liner a bulge, so a lump of mixture of resin and hardener inside the tube.
  • the nozzle is pulled out again and the slot is closed with an adhesive tape.
  • the tube then moves with this bulge to the inlet of the sizing roll and is pulled between its rollers, the resin being pressed intimately into the porous inner tube material.
  • the intimate and continuous, uniform impregnation of the porous material inside the tube is of crucial importance for the later stability of the cured liner.
  • the resin and the hardener are stored in separate tanks prior to mixing and pumping into the tubing.
  • the resin When resin mixture is to be pumped into the liner tube, the resin must be mixed in proper proportion with the hardener, which takes place in a static mixer inside the pump nozzle. From there, the finished resin-hardener mixture enters the hose, where it is then incorporated with a calibration roller in the hose material.
  • Some conventional mixing plants work with pneumatic lifting cylinders, which meter the individual components in batches, or the components are conveyed by screw pumps. When working with lifting cylinders, mixing can not be carried out continuously, but always in batches.
  • the use of screw pumps on the other hand has the disadvantage that the screw pumps stick again and again and dose with unsatisfactory accuracy.
  • the flow volume of the two components is measured and adjusted to the required mixing ratio and the required amount.
  • each pump will continue to pump with adjusted parameters such as speed or sash position although the mixing ratio between the resin and the hardener changed. So it may happen that for such reasons, a liner unnoticed with a wrong or not optimal mixing ratio of the resin and hardener is equipped and is installed. At the end you have in the middle of a, for example, 60m long rehabilitated pipe several meters of a low-quality lining hose that can not be removed!
  • the object of this invention is therefore to provide a plant for the resinification of lining hoses (liners) with epoxy resin and its hardeners, which is simpler in construction, requires minimal maintenance and either certain resin and hardener set points or a certain mixing ratio of resin and hardener dynamically at any time exactly and in a very narrow bandwidth automatically retains.
  • the system should be able to refuel itself in a special design, without an external pump is necessary.
  • the system is characterized according to the preamble in that each one refueling line opens with shut-off valve for refueling the tanks in the corresponding drain pipes, so that the pumps can be used either for self-refueling the system.
  • the pumps are directly from the controller, which with the Flowmeter coupled, adjusted to the correct mixing ratio of resin and hardener. This means: If one of the values deviates from the setpoint, regardless of whether the setpoint of the resin or the hardener, the control of the corresponding pump is readjusted to always maintain the exact mixing ratio.
  • the system also provides quality assurance by proving what exactly when, where and with what parameters pumped into a liner (liner).
  • the plant allows its own associated tanks for the resin and the hardener to be refueled with the existing pumps for conveying and mixing by means of an additional refueling line with coupling and valve itself. The function of the existing pumps is therefore extended to refuel the resin and hardener tanks without external pumps.
  • the system includes two tanks 1, 2 a.
  • a first tank 1 contains an epoxy resin, a second tank 2 a hardener.
  • From both tanks 1, 2 leads a drain line 3.4 with valve 33,34, for example in the form of a check valve or a check valve, and each drain line 3,4 then passes through a pump 5.6.
  • These pumps 5,6 are in the example shown gear pumps, but this is not mandatory.
  • piston pumps whose pump stroke can then be adjusted by means of a drive, for example a servomotor, for regulating the delivery rate.
  • gear pumps offer the advantage that they consist in principle of only three components, namely a housing with inlet and outlet, and two gears, of which at least one is driven.
  • the medium to be pumped is transported in the spaces between the teeth and the housing.
  • the pump is robust and inexpensive due to this simple construction and offers the great advantage that it can not constrict due to its design, even if it was not in use for a long time.
  • the gear pumps used here are each driven by an electronically controllable electric motor 7.8. Further forward, after the output of the drain lines 3.4 from these gear pumps 5.6, lead the lines 3.4 by a respective flow meter 9,10. It can be a volume flow meter or a mass flow meter. In the case of mass flowmeters 9, 10, Coriolis mass flowmeters (CMDs) are suitable because they are particularly accurate.
  • CMDs Coriolis mass flowmeters
  • display devices 11, 12 are located so that the respective flow rate can be read off immediately.
  • the data are transmitted via the electrical lines 27,29 to a central control unit 25 and processed there.
  • This control unit 25 is fed back to the motors 7,8 of the pumps, here the gear pumps 5,6.
  • these motors 7, 8 can be controlled in accordance with the flow measurements.
  • the mass flow of one mixing component serves as a reference variable for the mass flow rate of the second component, regardless of whether the resin or the hardener is treated as the first mixing component.
  • the reference variable and the corresponding pump power is the master, while the pump for the then second mixing component is therefore the slave.
  • the flow rate of, for example, the hardener to be mixed with a particular mass of the resin is calculated by the control unit and then meticulously maintained.
  • the control unit returns the pump to the optimum mixed value by periodically or dynamically adjusting the rotational speed or other determining parameters for the delivery rate.
  • the mixing ratio is logged, as well as the effectively conveyed through the real time masses for the two components are logged.
  • This protocol can then be processed electronically and also printed out if necessary.
  • a quality seal for the resin / hardener mixture pumped into a liner can be created at any time.
  • these each lead in a three-way valve 13,14 or a valve assembly with effect as a three-way valve, said a path from the three-way valves 13,14 or the valve assembly leads into the lines 17,18, and then lead them into a mixing nozzle 19.
  • the two other lines 15, 16 from these three-way valves 13, 14 or the valve arrangement lead back into the corresponding component tanks 1, 2.
  • the tanks 1, 2 are equipped with level measuring probes 31, 32, and the measuring signals can likewise be transmitted to the control unit 25.
  • the two three-way valves 13,14 are coupled to a control line 20, or in the case of a valve arrangement with effect as a three-way valve, the same is coupled to a control line 20.
  • the valves 33,34 are opened and the three-way valves 13,14 or the valve assembly with effect as a three-way valve initially adjusted so that the components via the return lines 15,16 back into the corresponding tanks 1, 2 are pumped, that is, the two components circulate in a circle. Then the mixing ratio and the mass flow in the control are entered as parameters. But this can also be done before commissioning the pumps 5.6.
  • the mass or volume flow of the resin is used as a reference variable and with the control unit 25, a specific associated flow rate for the curing agent is calculated and the pump 6 is automatically adjusted to the associated flow rate.
  • the control unit 25 already in the beginning and regulates the pump of the respective second components, so that the mixing ratio always moves constantly in a very narrow bandwidth.
  • the system can be run virtually in a circulating mode without mixing effectively, and the mixing ratio can be accurately measured and checked, but the components are already delivered in the perfect, verifiable mixing ratio and preselected mass speed in a closed circuit and As soon as it is to be mixed, the two three-way valves 13, 14 or the valve arrangement are simultaneously switched over with effect as a three-way valve, so that the components are conveyed into the lines 17, 18 and thus into the mixing nozzle 19.
  • the system is automatically stopped even before a component runs out.
  • the system is automatically stopped by the control unit 25 or switched to circulation mode when the flow measurement, be it a mass or volume flow measurement, determines a deviation from the adjustable bandwidth of the setpoint over an adjustable period of time and reports this to the control unit 25.
  • the system can fill its own tanks.
  • the three-way valves 13,14 or the valve assembly with effect as a three-way valve to the internal circulation.
  • the filling hoses of the supplied tanks or containers are coupled to the check valves 23, 24, the check valves 23, 24 in the refueling lines 21, 22 are opened. Now the pumps 5,6 can be put into operation.
  • the system is automatically stopped by the control unit 25, so that overfilling of the tanks is precluded.
  • the two tanks 1, 2 can be controlled via control unit 25 individually filled in this way.
  • the check valves 23,24 are closed again and the system can be operated for mixing in any mixing ratios.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Accessories For Mixers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne une installation d'application d'une résine époxy avec ses durcisseurs sur des flexibles de revêtement (Liner), comprenant un réservoir (1) destiné à la résine époxy et doté d'un tuyau d'évacuation (3) et d'une pompe (5) ainsi qu'un réservoir (2) destiné au durcisseur et doté d'un tuyau d'évacuation (4) et d'une pompe (6). Chaque tuyau d'évacuation (3,4) traverse un débitmètre (9,10). Une unité de commande (25) permet le traitement des signaux des débitmètres (9,10), le débit massique de la résine servant de grandeur de référence et l'unité de commande qui permet de régler le rapport de mélange souhaité en tant que paramètre, régle voire réajuste la pompe du durcisseur exactement à la quantité nécessaire de durcisseur. Au-delà des pompes (5,6) et des débitmètres (10), dans le tuyau d'évacuation (3,4) pour la résine et les durcisseurs, est respectivement monté une soupape à 3 canaux (13,14); respectivement une conduite (15,16) renvoyant au réservoir (1,2) correspondant, et une conduite (17,18) amenant à la buse de mélange (19). En outre, des conduites de remplissage (21,22) respectivement dotées d'une soupape (23,24) conduisent dans les tuyaux d'évacuation (3,4) respectifs de telle façon que l'installation puisse se remplir automatiquement.
EP10722912A 2009-06-11 2010-05-28 Installation de remplissage de flexibles de revêtement (liner) Withdrawn EP2440983A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00905/09A CH701245B1 (de) 2009-06-11 2009-06-11 Anlage für das Befüllen von Auskleidungsschläuchen.
PCT/CH2010/000142 WO2010142050A2 (fr) 2009-06-11 2010-05-28 Installation de remplissage de flexibles de revêtement (liner)

Publications (1)

Publication Number Publication Date
EP2440983A2 true EP2440983A2 (fr) 2012-04-18

Family

ID=42634665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722912A Withdrawn EP2440983A2 (fr) 2009-06-11 2010-05-28 Installation de remplissage de flexibles de revêtement (liner)

Country Status (6)

Country Link
US (1) US20120085783A1 (fr)
EP (1) EP2440983A2 (fr)
CN (1) CN102549517A (fr)
CH (1) CH701245B1 (fr)
SG (1) SG176788A1 (fr)
WO (1) WO2010142050A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2540452B1 (es) * 2015-02-23 2016-02-19 Juan Carlos GÓMEZ BARTOL Procedimiento para reparación interior de tuberías bajantes y máquina para dicho procedimiento
CN107505020A (zh) * 2017-09-28 2017-12-22 青岛软控机电工程有限公司 活塞体积式物料计量系统
CN111644116A (zh) * 2020-04-30 2020-09-11 兰州兰石中科纳米科技有限公司 一种配料装置
CN116374938A (zh) * 2023-03-30 2023-07-04 山东科瑞油气装备有限公司 一种油田用多品种化学添加剂注入系统及装置
EP4709528A1 (fr) * 2023-05-12 2026-03-18 Graco Minnesota Inc. Système de distribution de matériau à plusieurs composants

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Publication number Priority date Publication date Assignee Title
US3186688A (en) * 1961-01-23 1965-06-01 Rock Island Oil & Refining Co Resin dispensing apparatus and process
GB936693A (en) * 1961-06-06 1963-09-11 Jacob Joost Jiskoot Improvements relating to the blending of materials
US3801074A (en) * 1971-08-30 1974-04-02 Montigny Mixing and dispensing apparatus
US4008829A (en) * 1974-08-29 1977-02-22 Cincinnati Milacron, Inc. Ratio controlled mixing of liquids
US4628861A (en) * 1983-06-21 1986-12-16 Chembond Corporation Metering and proportioning system for a two-component liquid resin and liquid hardener adhesive
US4493286A (en) * 1983-07-25 1985-01-15 Koppers Company, Inc. Method and apparatus for applying a multi-component adhesive
JPS61263674A (ja) * 1985-05-17 1986-11-21 Toyota Motor Corp ２液混合型塗装方法
JPS61279858A (ja) * 1985-06-05 1986-12-10 Mitsubishi Electric Corp ネガレジスト現像装置
US4809909A (en) * 1985-06-13 1989-03-07 Glas-Craft, Inc. Plural component application system
FR2637820B1 (fr) * 1988-10-18 1991-04-26 Greggory Sa Procede de mise en presence d'un produit liquide de base et d'un durcisseur en vue de realiser un produit a durcissement rapide, moyens en vue de la mise en oeuvre de ce procede et installation pourvue de ces moyens
US20030124030A1 (en) * 2001-12-27 2003-07-03 Neopoxy Corporation System and method for delivering reactive fluids to remote application sites
US20070000947A1 (en) * 2005-07-01 2007-01-04 Lewis Russell H Apparatus and methods for dispensing fluidic or viscous materials
US7706925B2 (en) * 2007-01-10 2010-04-27 Mks Instruments, Inc. Integrated pressure and flow ratio control system
CN201034917Y (zh) * 2007-04-03 2008-03-12 浙江理工大学 一种环道式多相流冲蚀试验装置
WO2008123806A1 (fr) * 2007-04-10 2008-10-16 Safeaero I Trelleborg Ab Système de brassage et de pompage

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Title
See references of WO2010142050A2 *

Also Published As

Publication number Publication date
WO2010142050A3 (fr) 2012-04-19
CN102549517A (zh) 2012-07-04
CH701245A2 (de) 2010-12-15
CH701245B1 (de) 2013-05-31
WO2010142050A2 (fr) 2010-12-16
US20120085783A1 (en) 2012-04-12
SG176788A1 (en) 2012-01-30

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