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WO1998039111A1 - Systeme et procede de rinçage d'un refroidisseur - Google Patents

Systeme et procede de rinçage d'un refroidisseur Download PDF

Info

Publication number
WO1998039111A1
WO1998039111A1 PCT/US1998/004460 US9804460W WO9839111A1 WO 1998039111 A1 WO1998039111 A1 WO 1998039111A1 US 9804460 W US9804460 W US 9804460W WO 9839111 A1 WO9839111 A1 WO 9839111A1
Authority
WO
WIPO (PCT)
Prior art keywords
flushing
fluid
cooler
flow
valve
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.)
Ceased
Application number
PCT/US1998/004460
Other languages
English (en)
Inventor
Rick E. Tinklenberg
Randall D. Hilbrand
David A. Kammeraad
R. Clayton Mckeon
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.)
K Line Industries Inc
Original Assignee
K Line Industries Inc
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 K Line Industries Inc filed Critical K Line Industries Inc
Publication of WO1998039111A1 publication Critical patent/WO1998039111A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/06—Cleaning; Combating corrosion
    • F01P2011/065—Flushing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/04—Arrangements for conditioning of lubricants in the lubricating system by heating

Definitions

  • the present invention generally pertains to a flushing system for flushing out a hydraulic system, and more particularly, relates to a system and method for flushing a liquid cooling system of the type typically found in a vehicle.
  • a cooling system for transmission fluid employs a thermostatically-controlled valve for selectively passing the transmission fluid through the cooler when the temperature of the fluid exceeds a threshold level and for bypassing the cooler when the temperature of the transmission fluid has not yet reached a predetermined temperature.
  • a thermostatically-controlled valve for selectively passing the transmission fluid through the cooler when the temperature of the fluid exceeds a threshold level and for bypassing the cooler when the temperature of the transmission fluid has not yet reached a predetermined temperature.
  • the flushing system of the present invention comprises a reservoir containing a flushing fluid, a valve for alternately reversing the direction of flow of the flushing fluid through the cooling system, and a pump to cause the flushing fluid to flow through the valve and back to the reservoir.
  • the flushing system may include a heating element for heating the flushing fluid to a temperature exceeding that at which a thermostat, provided at the cooling system inlet and outlet, responds by opening a valve to allow fluid to flow through the cooling system.
  • the above aspects of the present invention may further be obtained by practicing a method of flushing a cooling system comprising the steps of providing a reservoir containing flushing fluid, pumping the flushing fluid from the reservoir through a direction shifting valve and through the cooling system, directing the flushing fluid back to the reservoir, changing the direction of flow of the flushing fluid, and repeating the cycle.
  • Fig. 1 is a block diagram illustrating a thermostatically-controlled cooler with which the present invention may be used showing the flow of fluid when the fluid passing therethrough is not above a predetermined temperature
  • Fig. 2 is a functional block diagram of a thermostatically-controlled cooler with which the flushing system of the present invention may be used showing the flow of fluid when the temperature of the fluid exceeds the predetermined threshold level of the thermostatically-controlled valve;
  • Fig. 3 is a functional block diagram of the flushing system according to the present invention illustrating the flow of fluid therethrough when operating in an alternating direction flow control mode and the fluid is flowing in a forward direction;
  • Fig. 4 is a functional block diagram of the flushing system according to the present invention illustrating the flow of fluid therethrough when operating in an alternating direction flow control mode and the fluid is flowing in a reverse direction
  • Fig. 5 is a functional block diagram of the flushing system according to a second embodiment of the present invention illustrating the flow of fluid therethrough when operating in an alternating direction flow control mode and the fluid is flowing in a forward direction
  • Fig. 6 is a functional block diagram of the flushing system according to the second embodiment of the present invention illustrating the flow of fluid therethrough when operating in an alternating direction flow control mode and the fluid is flowing in a reverse direction
  • Fig. 7 is a functional block diagram of the flushing system according to the second embodiment of the present invention illustrating the flow of fluid through the flushing system during an optional final rinse cycle.
  • Figs. 1 and 2 show a thermostatically-controlled cooling system which includes a cooler 10, an in-flow line 12, an out-flow line 14 and a thermostatically-controlled valve 20.
  • Fig. 1 illustrates the flow of fluid through valve 20 when the temperature of the fluid supplied through an inlet 13 is below a predetermined threshold level. As shown, the fluid is not permitted to flow through cooler 10 when it has not yet reached the predetermined threshold level.
  • Fig. 2 illustrates the flow of fluid through valve 20 when the temperature of the fluid has reached the predetermined threshold level. As apparent from this figure, the fluid flowing in inlet 13 passes through valve 20 to in-flow line 12 and exits cooler 10 from out-flow line 14 and passes through valve 20 to outlet 15.
  • valve 20 switches to the state shown in Fig. 1 and bypasses cooler 10 until the temperature again exceeds the threshold level.
  • Flushing system 30 includes a reservoir 40 which preferably includes a plurality of heating elements 41 and 42 for heating the flushing fluid contained in reservoir 40 to a temperature at which the thermostatically- controlled valve 20 will respond by allowing fluid to flow through cooler 10.
  • Reservoir 40 further includes a level switch 44, which includes a high level fluid sensor 45, a low level fluid sensor 46, and a temperature sensor 47. If either high level fluid sensor 45 or low level fluid sensor 46 is triggered, level switch 44 shuts down the flushing unit.
  • Reservoir 40 is preferably provided in a thermally-insulated tank.
  • Flushing system 30 further includes a pump 50 that draws flushing fluid in reservoir 40 through a filter 52 and pumps this fluid through a flow direction-shifting solenoid valve 54, through a one-way valve 56 and to the inlet 13 of thermostatically- controlled valve 20.
  • a pump 50 that draws flushing fluid in reservoir 40 through a filter 52 and pumps this fluid through a flow direction-shifting solenoid valve 54, through a one-way valve 56 and to the inlet 13 of thermostatically- controlled valve 20.
  • a pilot control line 58 to activate one-way check valve 60 to allow fluid to flow through valve 60 on its return from cooler 10.
  • the flushing fluid exits cooler 10 through out-flow line 14 and valve 20 and passes through the actuated one-way check valve 60, a filter 62, and back into reservoir 40.
  • This flow of fluid out of and into reservoir 40 is illustrated in Fig. 3 and is hereinafter referred to as a forward flush.
  • Pump 50 is preferably driven by an electric or pneumatic motor 64 that receives air originating from
  • Flushing system 30 also includes two pressure transducers 70 and 72 which monitor the fluid pressure in the lines of the system. If fluid pressure falls outside of the acceptable range, transducers 70 and 72 cause flushing system 30 to shut down by shutting off motor 64.
  • Fig. 4 shows flushing system 30 when used to flush cooler 10 in an opposite direction (hereinafter a "reverse flush").
  • flow direction- shifting solenoid valve 54 is electrically actuated to change status thereby passing the flushing fluid provided from pump 50 to the outlet of thermostatically-controlled valve 20 via a one-way valve 66.
  • a small amount of fluid enters a pilot control line 59 to activate one-way check valve 68.
  • Flow direction-shifting solenoid valve 54 further causes the fluid passing through cooler 10 and exiting the inlet 13 of valve 20 to be directed through one-way valve 68, through filter 62 and back into reservoir 40.
  • flow direction-shifting solenoid valve 54 is preferably alternatingly switched between the states shown in Figs. 3 and 4 to alternatingly shift between forward and reverse flushes.
  • time period for switching between the reverse and forward flushes may vary considerably, for a transmission cooler 10 it is preferred that the direction of flow be switched at approximately five second intervals over a total period of five to ten minutes. It is contemplated that these time periods may be selected through an electric control panel that varies the duty cycle of the electric signal provided to valve 54 that causes it to switch states.
  • Temperatures in reservoir 40 are typically in the range of approximately
  • the fluid pressure output from pump 50 is preferably on the order of 100 to 300 psi. As the fluid leaves pump 50, some fluid may be forced through a relief valve 80 if the flow rate or pressure of the fluid is higher than normal as it exits pump 50.
  • flushing system 30 may be used to flush other types of hydraulic systems. It will be appreciated that if there is no thermostatically-controlled valve, the flushing fluid need not be heated and heating elements 41 and 42 could be eliminated from the system. However, it is noted that using a heated fluid in itself has advantages such as having a high energy level to clear debris in the cooling system and to clean the system.
  • the flushing system of the present invention may be controlled by a programmed device or any other electronic circuitry to customize the operations of the flushing system for use in flushing various cooling systems.
  • the switching of valve 54 and the heat generated by heating elements 41 and 42 may be controlled by a programmable device or electronic circuit that allows these parameters to be selected by the user.
  • Flushing system 130 includes a reservoir 140 which may include a single chamber or two chambers 141 and 142 separated by a divider 143 which may be a screen to permit fluid flow between the two chambers or may provide a water-tight seal to prevent the fluids from mixing.
  • Reservoir 140 preferably includes a plurality of heating elements 145, 146 and 147 for heating the flushing fluid contained in reservoir 140 to a temperature at which the thermostatically-controlled valve 20 will respond by allowing fluid to flow through cooler 10.
  • Flushing system 130 further includes a first pump 150 that draws flushing fluid in reservoir 140 through a filter 152 and pumps this fluid through a one-way valve 156 and a flow direction-shifting valve 158 to the inlet 13 of thermostatically-controlled valve 20.
  • a first pump 150 that draws flushing fluid in reservoir 140 through a filter 152 and pumps this fluid through a one-way valve 156 and a flow direction-shifting valve 158 to the inlet 13 of thermostatically-controlled valve 20.
  • the flushing fluid exits cooler 10 through out-flow line 14 and valve 20 and passes through a filter 160, a oneway valve 162, and flow direction-shifting valve 158 back into chamber 141 of reservoir 140.
  • This flow of fluid out of and into reservoir 140 is illustrated in Fig. 5 and is hereinafter referred to as a forward flush.
  • First pump 150 is preferably driven by an electric or pneumatic motor 154 that receives air originating from a source 170.
  • the air supplied from source 170 passes through a filter 172, a pressure-relief device 174 having a meter 176 and through a separator 178 before reaching motor 154.
  • a restricter valve 179 is operably connected to pneumatic pump 154.
  • Fig. 6 shows flushing system 130 when used to flush cooler 10 in an opposite direction (hereinafter a "reverse flush").
  • flow direction- shifting valve 158 is electrically actuated to change status thereby passing the flushing fluid provided from pump 150 to the outlet of thermostatically-controlled valve 20 via a one-way valve 164.
  • Flow direction-shifting valve 158 further causes the fluid passing through cooler 10 and exiting the inlet 13 of valve 20 to be directed into a return back into reservoir 140.
  • flow direction-shifting valve 158 is preferably alternatingly switched between the states shown in Figs. 5 and 6 to alternatingly shift between forward and reverse flushes.
  • time period for switching between the reverse and forward flushes may vary considerably, for a transmission cooler 10 it is preferred that the direction of flow be switched at approximately five second intervals over a total period of five to ten minutes. It is contemplated that these time periods may be selected through an electric control panel that varies the duty cycle of the electric signal provided to valve 158 that causes it to switch states.
  • thermostats are preferably provided in chambers 141 and 142 so as to maintain the temperature of the flushing fluid at a level sufficient to cause thermostatically-controlled valve 20 to allow the flow of the fluid to cooler 10. Such temperatures are typically in the range of approximately 200°F.
  • the fluid pressure output from first pump 150 is preferably on the order of 100 to 300 psi.
  • Fig. 7 shows the flow of fluid during an optional final flush.
  • flushing system 130 may further include a second pump 180 controlled by an electric motor 182 to pump fluid from second chamber 142 through a one-way valve 184 to inlet 13 of thermostatically-controlled valve 20.
  • the flushing fluid supplied from pump 180 then passes through cooler 10 and exits outlet 15 of valve 20.
  • Cooling system 130 may also include an electrically-actuated valve 186 that is coupled in a second return path to reservoir 140. As shown in Figs. 5 and 6, this valve is closed during the alternating forward/reverse flush cycles but is opened when the final flush is taking place.
  • valve 186 preferably empties into chamber 142 rather than chamber 141, as shown in Fig. 7. Further, a valve similar to valve 186 may be provided in the first return path through filter 160 and one-way valve 162 to prevent the final flushing fluid from otherwise becoming mixed with the other fluid in chamber 141.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invention concerne un système de rinçage (30) destiné à rincer un système de refroidissement. Ce système de rinçage (30) comprend un réservoir (40) contenant un fluide de rinçage, une soupape (54) inversant tour à tour le sens de l'écoulement dudit fluide de rinçage, et une pompe (50) amenant ce fluide à traverser ladite soupape (54), puis à passer par le système de refroidissement, avant de revenir vers ledit réservoir (40). Ce système de rinçage peut également comprendre un élément chauffant (41, 42), destiné à chauffer le fluide de rinçage. L'invention concerne également un procédé de rinçage d'un système de refroidissement, qui comprend les étapes consistant: à prévoir un réservoir (40) contenant un fluide de rinçage, à pomper ce fluide de rinçage à partir dudit réservoir (40) à travers une soupape à écoulement inversé (54) et à travers le système de refroidissement, ledit fluide de rinçage étant de nouveau orienté vers ledit réservoir (40), ce qui inverse le sens de l'écoulement du fluide de rinçage, et permet ainsi de répéter le cycle.
PCT/US1998/004460 1997-03-07 1998-03-06 Systeme et procede de rinçage d'un refroidisseur Ceased WO1998039111A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4022497P 1997-03-07 1997-03-07
US60/040,224 1997-03-07

Publications (1)

Publication Number Publication Date
WO1998039111A1 true WO1998039111A1 (fr) 1998-09-11

Family

ID=21909815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/004460 Ceased WO1998039111A1 (fr) 1997-03-07 1998-03-06 Systeme et procede de rinçage d'un refroidisseur

Country Status (1)

Country Link
WO (1) WO1998039111A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787507A1 (fr) * 1998-12-22 2000-06-23 Thierry Gayet Appareil de remplacement du liquide de refroidissement
CN106422493A (zh) * 2016-10-26 2017-02-22 广东高而美制冷设备有限公司 一种智能排污系统及排污方法
CN109340733A (zh) * 2018-11-19 2019-02-15 广东格匠实业有限公司 一种反向自清洗蒸汽发生器装置
CN110500506A (zh) * 2019-08-12 2019-11-26 江苏新美星包装机械股份有限公司 一种转子泵输送管路
WO2020048866A1 (fr) * 2018-09-07 2020-03-12 Adey Holdings (2008) Limited Machine de rinçage
WO2022160319A1 (fr) * 2021-01-30 2022-08-04 华为数字能源技术有限公司 Système de filtrage, système de climatisation, centre de données et procédé de nettoyage pour système de filtrage
EP3782742B1 (fr) * 2019-08-23 2025-02-26 wattec GmbH Dispositif de nettoyage et procédé de nettoyage

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1549952A (en) * 1923-12-13 1925-08-18 Edwin C Anderson Device for cleaning gear casings of automobiles
US2222516A (en) * 1937-07-21 1940-11-19 William T Powell Method and apparatus for cleaning fluid circulating systems
US2619974A (en) * 1946-10-10 1952-12-02 John H Daley Reverse flow surge washer
US3094131A (en) * 1961-04-11 1963-06-18 Henry L Williams Vehicle cooling system cleaning apparatus
US4213474A (en) * 1979-08-03 1980-07-22 Frank Harrison Vehicle radiator cleaning and testing system
US5015301A (en) * 1990-03-01 1991-05-14 Wynn Oil Company Vehicle power steering flush apparatus and method
US5097894A (en) * 1991-07-05 1992-03-24 Roland Cassia Vehicular flushing and draining apparatus and method
US5289837A (en) * 1992-12-09 1994-03-01 Eduardo Betancourt Engine cleaning system
US5381810A (en) * 1992-10-22 1995-01-17 Mosher; Frederick A. Electronically controlled carbon-cleaning system for internal combustion engines
US5482062A (en) * 1993-06-15 1996-01-09 Chen; We-Yu Apparatus and method for automatic transmission system fluid exchange and internal system flushing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1549952A (en) * 1923-12-13 1925-08-18 Edwin C Anderson Device for cleaning gear casings of automobiles
US2222516A (en) * 1937-07-21 1940-11-19 William T Powell Method and apparatus for cleaning fluid circulating systems
US2619974A (en) * 1946-10-10 1952-12-02 John H Daley Reverse flow surge washer
US3094131A (en) * 1961-04-11 1963-06-18 Henry L Williams Vehicle cooling system cleaning apparatus
US4213474A (en) * 1979-08-03 1980-07-22 Frank Harrison Vehicle radiator cleaning and testing system
US5015301A (en) * 1990-03-01 1991-05-14 Wynn Oil Company Vehicle power steering flush apparatus and method
US5097894A (en) * 1991-07-05 1992-03-24 Roland Cassia Vehicular flushing and draining apparatus and method
US5381810A (en) * 1992-10-22 1995-01-17 Mosher; Frederick A. Electronically controlled carbon-cleaning system for internal combustion engines
US5289837A (en) * 1992-12-09 1994-03-01 Eduardo Betancourt Engine cleaning system
US5482062A (en) * 1993-06-15 1996-01-09 Chen; We-Yu Apparatus and method for automatic transmission system fluid exchange and internal system flushing

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787507A1 (fr) * 1998-12-22 2000-06-23 Thierry Gayet Appareil de remplacement du liquide de refroidissement
EP1013908A1 (fr) * 1998-12-22 2000-06-28 Thierry Gayet Appareil de remplacement du liquide de refroidissement
CN106422493A (zh) * 2016-10-26 2017-02-22 广东高而美制冷设备有限公司 一种智能排污系统及排污方法
CN106422493B (zh) * 2016-10-26 2018-11-06 广东高而美制冷设备有限公司 一种智能排污系统及排污方法
WO2020048866A1 (fr) * 2018-09-07 2020-03-12 Adey Holdings (2008) Limited Machine de rinçage
CN109340733A (zh) * 2018-11-19 2019-02-15 广东格匠实业有限公司 一种反向自清洗蒸汽发生器装置
CN110500506A (zh) * 2019-08-12 2019-11-26 江苏新美星包装机械股份有限公司 一种转子泵输送管路
CN110500506B (zh) * 2019-08-12 2024-06-07 江苏新美星包装机械股份有限公司 一种转子泵输送管路
EP3782742B1 (fr) * 2019-08-23 2025-02-26 wattec GmbH Dispositif de nettoyage et procédé de nettoyage
WO2022160319A1 (fr) * 2021-01-30 2022-08-04 华为数字能源技术有限公司 Système de filtrage, système de climatisation, centre de données et procédé de nettoyage pour système de filtrage

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