EP1196723B1 - Spülvorrichtung für zentralheizanlage - Google Patents

Spülvorrichtung für zentralheizanlage Download PDF

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Publication number
EP1196723B1
EP1196723B1 EP00944099A EP00944099A EP1196723B1 EP 1196723 B1 EP1196723 B1 EP 1196723B1 EP 00944099 A EP00944099 A EP 00944099A EP 00944099 A EP00944099 A EP 00944099A EP 1196723 B1 EP1196723 B1 EP 1196723B1
Authority
EP
European Patent Office
Prior art keywords
reservoir
pump
port
liquid
ports
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.)
Expired - Lifetime
Application number
EP00944099A
Other languages
English (en)
French (fr)
Other versions
EP1196723A1 (de
Inventor
Robert Thomas Adam
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.)
Suez WTS USA Inc
Original Assignee
BetzDearborn 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 BetzDearborn Inc filed Critical BetzDearborn Inc
Publication of EP1196723A1 publication Critical patent/EP1196723A1/de
Application granted granted Critical
Publication of EP1196723B1 publication Critical patent/EP1196723B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0092—Devices for preventing or removing corrosion, slime or scale
    • 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

Definitions

  • This invention relates to a flushing apparatus for internal cleaning of pipes or other liquid filled bodies, in particular domestic or commercial central heating systems.
  • Cleaning or flushing apparatus for central heating central heating systems are known. In their simplest from they comprises a tank to hold the cleaning solution, flow and return pipes, and a pump to circulate the cleaning solution through the system. Some known systems include valves that permit the direction of flow of the cleaning solution in the system to be reversed without disconnection and reconnection of the pipes.
  • the pump and pump connections are generally mounted externally of the tank with the pump head inside the tank and the pump motor outside of the tank.
  • the pump connections and associated pipework and valves are also mounted externally of the tank.
  • the present invention provides a flushing apparatus which is more efficient and delivers relatively higher flow rates than the prior art.
  • a flushing apparatus particularly for use in internal cleaning of central heating systems, and which comprises a reservoir for a liquid to be flushed through a system, a pump for pumping liquid from the reservoir through said system, at least two service ports by which pumped liquid leaves from and returns to the reservoir, characterised in that the apparatus further comprises a diverter valve for changing the direction of flow between the two service ports and which forms part of a manifold system with the diverter valve and manifold located internally of the reservoir and controlled by a handle located externally of the reservoir, the pump also being fully located within the reservoir for immersion in the liquid being pumped, so that the pump motor is cooled by the pumped liquid.
  • the reservoir is a one piece rotational casting formed from a suitable plastics material such as a polyolefin , typically high or medium density polyethylene, or mixture thereof. Since the reservoir is a single moulding it is substantially leakproof.
  • the pump is held in position in the reservoir by inwardly projecting lugs integrally moulded into the wall of the reservoir, more preferably the base.
  • the reservoir is in the form of an upright cylinder having a base with a sump formed therein , the sump being located below the pump for the collection of any sludge or solids flushed out of the system.
  • the reservoir may be mounted on wheels and the base is shaped to accommodate a pair of wheels mounted one at each end of an axle arranged across the base on a chord thereto.
  • the diverter valve has four valve ports, an inlet port connected through the manifold to the pump, a drain port for returning fluid to the-reservoir, and two other ports each respectively connected via the manifold to a respective one of said two service ports, the diverter valve being operable to direct fluid from the inlet port to either one of said two service ports.
  • the service ports, and drain port may each have a respective flow control valve located externally of the reservoir.
  • a flushing system for flushing central heating systems which includes apparatus according to the invention and further includes flow and return hoses each connectable at one end thereof to a service port, and having at their other ends fittings for connection heating system pump unions.
  • the apparatus comprises a tank or reservoir 11 which is substantially in the form of an upright cylinder and is a one piece rotational casting made from medium density polyethylene with moulded liquid level indicators 12.
  • the base 13 of the reservoir has integral internally projecting lugs 14, preferably at least three, which serve to locate an immersion pump 15 in an upright condition inside the reservoir.
  • the base 13 of the reservoir 11 includes a moulded-in sump 16 which located at the front of the apparatus and lies at a lower level than the pump 15.
  • the base is formed with grooved rib 17 which serves as a location for an axle having wheels 18 at the ends thereof.
  • the sump 16 serves as a foot when the apparatus is stood upright.
  • the upper portion of the reservoir comprises a lower front chordate sector 22 and a raised rear chordate sector 23 with a step 24 between the two sectors.
  • a handle 25 is fixed to the raised sector 23 and a circular access lid 26 is located in an aperture in the lower sector 22.
  • the lid 26 may be used for adding chemicals to water held in the reservoir.
  • the pump 15 is connected to three ports 31,32,33 located on the front of the step 24 through a manifold 30.
  • a fourth port 34 is used for filling the reservoir with mains water and has a coupling 48 for attachment of a hose .
  • the manifold 30 is made of a rigid plastics material e.g UPVC and includes a diverter valve 35 having four ports , an inlet valve port 36 connected to the output from the pump 15, a return port 37 for returning used liquid to the reservoir, and two other valve ports 38, 39 which are each respectively connected via the manifold conduits 41, 42 to two of said three ports which are service ports 32 and 33.
  • the conduit 41 is also connected to the third of said ports 31 which serves as a main drain port.
  • the lugs 14 and manifold 30 hold the pump 15 firmly in position allowing the apparatus to be inverted for cleaning.
  • the manifold 30 is located inside the reservoir behind the step 24 and connected through the step to said ports 31-33 located outside of the reservoir.
  • the diverter valve 35 is controlled by a handle 43 located outside the reservoir and fitted onto valve spindle which passes through the top of the reservoir.
  • the service ports 32, 33 each have a control valve and coupling 44,45 fixed to the respective port for controlling the flow of liquid through the valve.
  • the main drain port 31 is also provided with a control valve and coupling 47 for attachment to a hose,
  • the pump is connectable to an electrical supply and its motor is operated through an enclosed water proof dipole switch 46 mounted on top of the reservoir.
  • the pump is cooled by the solution that it pumps and may be fitted with a thermal cut out if the temperature of the pump exceeds a predetermined value.
  • the diverter valve 35 operates so that when the handle 43 is set to the position shown in Fig.4A and Fig.3 the pumped cleaning liquid passes out through valve port 39 to service port 33 and returns through service port 32 and returns to the reservoir via outlet port 37. With the diverter valve handle 43 set to the position shown in Fig. 4B , the flow direction is reversed, the pumped liquid passes out through valve port 38 to service port 32, and returns through service port 33 and returns to reservoir via valve port 37.
  • hoses 51-54 are connected to the main drain port 31 and the fill port 34 respectively.
  • the hoses 53 and 54 are connected the service ports 32 and 33 via couplings on one end of each hose and on their other end have connections suitable for coupling to a pump union in a central heating system.
  • the reservoir 11 is filled with water through the hose 52. Any chemicals or cleaning fluid can be added through the lid 26.
  • the diverter valve is set to the position shown in Figs. 3 & 4A so that liquid will flow through the system from port 33 to port 32. With the control valves 44, 45 open, the pump 15 is switched on and water flows in the set direction for a required period of time, between 5-30 minutes depending on the operation.
  • the diverter handle is set to the position shown in Fig. 4B reversing the direction of flow and the pump run for another period of time.
  • the change in direction of flow may be repeated many times depending upon the state of the system being flushed and the operation being performed e.g initial flush, chemical clean, final flush etc.
  • Contaminated liquid can be removed from the system by opening the drain valve 47 and removing say 50% of the volume of dirty liquid, and then refilling with fresh water. This can be repeated several times until the circulated water is relatively clean. Any sludge collected in the sump 16 should be cleaned out of the apparatus after use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (10)

  1. Spülvorrichtung zur Verwendung bei der Innenreinigung von Zentralheizungssystemen, das einen Behälter (11) für eine durch ein System zu spülende Flüssigkeit, eine Pumpe (15) zum Pumpen der Flüssigkeit aus dem Behälter durch das System, wenigstens zwei Anschlußöffnungen (32, 33), durch welche die gepumpte Flüssigkeit den Behälter (11) verläßt und zu demselben zurückfließt, umfaßt, dadurch gekennzeichnet, daß die Vorrichtung außerdem ein Umleitventil (35) einschließt, um die Fließrichtung zwischen den zwei Anschlußöffnungen (32, 33) zu ändern, die Teil eines Verteilersystems (30) ist, wobei das Umleitventil (35) und der Verteiler (30) innerhalb des Behälters (11) angeordnet werden, wobei das Umleitventil durch einen außerhalb des Behälters angeordneten Griff (43) gesteuert wird, und dadurch, daß die Pumpe (15) ebenfalls vollständig innerhalb des Behälters angeordnet wird, um in die gepumpte Flüssigkeit einzutauchen, so daß der Pumpenmotor durch die gepumpte Flüssigkeit gekühlt wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Behälter (11) ein einteiliges Rotationsgußstück ist, hergestellt aus einem geeigneten Kunststoffmaterial.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Pumpe (15) durch nach innen vorstehende, integriert mit einer Wand des Behälters geformte, Nasen (14) in Position gehalten wird.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß-der Behälter (11) einen unterhalb der Pumpe (15) angeordneten Sumpf (16) zum Sammeln von aus dem System gespültem Schlamm hat.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Behälter (11) auf Rädern (18) montiert wird, um eine Bewegung zu erleichtern.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Basis (13) des Behälters (11) einen geformten Abschnitt (17) zum Anordnen einer Achse mit an derselben angebrachten Rädern (18) hat.
  7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Umleitventil (35) vier Ventilöffnungen (36, 37, 38, 39) hat, eine durch den Verteiler mit der Pumpe (15) verbundene Einlaßöffnung (36), eine Rückflußöffnung (37) zum Zurückleiten des Fluids in den Behälter (11) und zwei andere, jeweils über den Verteiler mit einer entsprechenden der zwei Anschlußöffnungen (32, 33) verbundene, Öffnungen (38, 39), wobei das Umleitventil (35) betätigt werden kann, um das Fluid von der Einlaßöffnung (36) zu einer der zwei Anschlußöffnungen (32, 33) zu leiten.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, die außerdem außerhalb des Behälters angebrachte und jeder Anschlußöffnung (31, 32, 33) zugeordnete Regelventile (44, 45, 47) einschließt, um den Fluidfluß durch die Anschlußöffnungen (31, 32, 33) zu regeln.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß eine Anschlußöffnung (31) über den Verteiler (30) mit der Umleitventilöffnung (38) zum Ablassen von Flüssigkeit aus der Vorrichtung verbunden wird.
  10. System zum Spülen von Zentralheizungssystemen, das eine Vorrichtung nach einem der Ansprüche 1 bis 9 umfaßt und außerdem Durchfluß- und Rückflußschläuche (53, 54) einschließt, die jeweils an dem einen Ende derselben an eine Anschlußöffnung (32, 33) angeschlossen werden können, und die an ihren anderen Enden Anschlußstücke zum Verbinden mit den Heizungssystem-Pumpenanschlüssen haben.
EP00944099A 1999-07-09 2000-06-30 Spülvorrichtung für zentralheizanlage Expired - Lifetime EP1196723B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9916040A GB2351785B (en) 1999-07-09 1999-07-09 A central heating system flushing apparatus
GB9916040 1999-07-09
PCT/GB2000/002532 WO2001004545A1 (en) 1999-07-09 2000-06-30 A central heating system flushing apparatus

Publications (2)

Publication Number Publication Date
EP1196723A1 EP1196723A1 (de) 2002-04-17
EP1196723B1 true EP1196723B1 (de) 2005-02-23

Family

ID=10856897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00944099A Expired - Lifetime EP1196723B1 (de) 1999-07-09 2000-06-30 Spülvorrichtung für zentralheizanlage

Country Status (5)

Country Link
EP (1) EP1196723B1 (de)
AU (1) AU5833500A (de)
DE (1) DE60018282T2 (de)
GB (1) GB2351785B (de)
WO (1) WO2001004545A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2381307A (en) * 2001-09-14 2003-04-30 Barry Alan Foster Water system flushing unit
GB0320679D0 (en) * 2003-09-04 2003-10-01 Kamlo Ltd Circulation pump cleaning adaptor
GB2442008A (en) * 2006-09-19 2008-03-26 Neil Johnson Dosing vessel for sealed central heating system
WO2008035060A1 (en) * 2006-09-19 2008-03-27 Neil Johnson Dosing device
GB2448182A (en) * 2007-04-05 2008-10-08 Mark Boccetti Boiler system fitting
GB2449241A (en) * 2007-05-12 2008-11-19 Edward David Richards Drainage and additive kit for radiators
GB2457988A (en) * 2008-03-07 2009-09-09 Andrew Michael Byrnes Flushing apparatus for connection to a heating system
GB2480866B (en) * 2010-06-04 2015-07-15 Adey Holdings 2008 Ltd Method of flushing a central heating system
GB2482490A (en) * 2010-08-03 2012-02-08 Balvinder Singh Nagi Portable Flushing Unit particularly for use with central heating systems
GB201218134D0 (en) * 2012-10-10 2012-11-21 Harnett Tyronne G Dual action fluid diffuser
ITMO20130009A1 (it) * 2013-01-17 2014-07-18 Reginaldo Ordine Macchina per la pulizia degli impianti termo-idraulici

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7507125A (en) * 1975-06-16 1976-12-20 Gerard Pieter Maria Janssen Removing scale from hot water systems - by portable pump and tank circulating acid soln. with mordancy inhibitors
KR950005996B1 (ko) * 1986-10-23 1995-06-07 선드홀름 괴란 소경유압 파이프 시스템등의 세척장치
US4991608A (en) * 1989-03-27 1991-02-12 Delano Schweiger Apparatus and method for cleaning heat exchangers
EP0756577A4 (de) * 1993-10-29 1998-02-11 Alan Edwin Board Verfahren und vorrichtung zum reinigen von flüssigkeitsabgabesysteme
DE29500218U1 (de) * 1995-01-07 1995-03-02 Bossert Gerdi Reinigungsvorrichtung für Wasserleitungen
DE29905952U1 (de) * 1999-04-06 1999-06-24 Schmid Gmbh & Co Kg Gerät zur Wartung und Füllung von Heizungsanlagen

Also Published As

Publication number Publication date
AU5833500A (en) 2001-01-30
EP1196723A1 (de) 2002-04-17
DE60018282T2 (de) 2005-12-29
GB2351785B (en) 2001-11-28
GB9916040D0 (en) 1999-09-08
GB2351785A (en) 2001-01-10
WO2001004545A1 (en) 2001-01-18
DE60018282D1 (de) 2005-03-31

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