EP1217310B1 - Unité compacte - Google Patents

Unité compacte Download PDF

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Publication number
EP1217310B1
EP1217310B1 EP20000128774 EP00128774A EP1217310B1 EP 1217310 B1 EP1217310 B1 EP 1217310B1 EP 20000128774 EP20000128774 EP 20000128774 EP 00128774 A EP00128774 A EP 00128774A EP 1217310 B1 EP1217310 B1 EP 1217310B1
Authority
EP
European Patent Office
Prior art keywords
valve
pump
assembly according
compact assembly
chamber
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
EP20000128774
Other languages
German (de)
English (en)
Other versions
EP1217310A1 (fr
Inventor
Ben Dossing
Olaw Jensen
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.)
Grundfos AS
Original Assignee
Grundfos AS
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
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Application filed by Grundfos AS filed Critical Grundfos AS
Priority to EP20000128774 priority Critical patent/EP1217310B1/fr
Priority to DE50012994T priority patent/DE50012994D1/de
Publication of EP1217310A1 publication Critical patent/EP1217310A1/fr
Application granted granted Critical
Publication of EP1217310B1 publication Critical patent/EP1217310B1/fr
Anticipated expiration legal-status Critical
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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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/105—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system pumps combined with multiple way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/142—Connecting hydraulic components

Definitions

  • the invention relates to a compact unit for a heating system, in particular for a gas boiler with the features specified in the preamble of claim 1.
  • Such heating systems especially gas water heaters are used wherever it is necessary to install a heating system in a small space.
  • Such systems are often installed in kitchens or bathrooms in specially designated niches in a confined space. It is therefore the desire to make these devices as small and compact as possible.
  • a compact design often leads to more maintenance effort when accessibility problems exist.
  • a generic compact unit is known from DE 197 17 799 A1. This aggregate unites all essential Scholffunkfionen and also includes in addition to the electric drives also a dirt separator and an air separator.
  • This compact unit has basically proven, but requires a relatively large overall depth, since the pump unit is arranged in the installed position in front of the valve assembly. This furthermore requires that the unit parts located behind the pump unit, in particular the valve unit, be difficult to access from the front. Also, the pump unit obscures the view from the front of the underlying aggregot cell, which is why a visual inspection of the operating state, for example, the lever position of the change-over valve, from the front is not possible. A side view is usually not possible due to the installation situation Incidentally, this is often hindered by other built-in parts.
  • connection adapter for a pump which connects to a three-way valve, which in turn is connected to a centrifugal pump.
  • the ducting within the valve assembly is not apparent there. Also, there is neither a valve chamber provided nor awhoheüsventil.
  • the present invention seeks to provide a generic compact unit in such a way that the overall depth is reduced and the accessibility of Aggregatmaschine, also for safety reasons, is improved.
  • valve assembly in the installed position behind the pump assembly but next to the pump assembly and to allow the units to be connected directly to one another, the suction side of the pump discharging laterally into the valve assembly.
  • Such an arrangement not only reduces the overall depth of the unit, but allows a much better accessibility of all provided in the valve assembly components. These components can usually be serviced or replaced without removing the pump assembly.
  • the valve assembly has a valve chamber, wherein the safety valve connects to the top of the valve chamber, the output of which opens in the installed position to the rear and which is actuated by means of a lever accessible from the front.
  • safety valve pressure relief valve
  • an opening may be provided in the top of the chamber, in which a corresponding valve can be inserted.
  • Such safety valves must be manually triggerable for testing purposes. So that the optionally hot water with manual opening of the valve not in the direction of the operator, so forward, this is according to the invention arranged so that the output of the safety valve opens in the installed position to the rear.
  • a lever for triggering the safety valve is provided according to the invention, which is actuated from the front.
  • this lever is designed so that it overlaps the safety valve on both sides and otherwise possibly bypassing led from components forward.
  • bow-like spreading the lever can be attached without additional support exclusively on the safety valve, which repels during pivotal movements of the lever on the safety valve and thereby takes the trigger pin of the valve and thus opens the valve.
  • the suction port of the pump is overlapped by a pump-side housing part, so that a subsequent to the suction port of the pump chamber is formed, which serves for a deflection by about 90 degrees to the laterally adjoining valve assembly and provided on the other in the upper part with an air separator is.
  • the space required for redirecting the flow which is required in any case, is used to separate off any air or gases present in it.
  • the valve chamber of the valve assembly lead the lines to the heating circuits and a line connection to the suction port of the pump.
  • the pipes lead to the heating circuits in the valve chamber of the valve unit.
  • the lines leading to the heating circuits each terminate in a valve seat and in the opposite direction, wherein a closing body is arranged between the valve seats, which is provided for selectively closing one or the other valve seat.
  • the direction of movement of the closing body is preferably provided in a direction parallel to the impeller axis of the pump, as then results in a particularly compact design, in which the free spaces formed by the rounding of the motor housing of the pump assembly can be used to save space for components of the valve assembly.
  • valve chamber of substantially round cross-section, which is stepped to receive inserts and whose axis in the axial direction of the therein opening valve seats or nozzle or parallel thereto lies.
  • component comprising the valve chamber which is usually formed as a plastic injection molded part, can be produced without lost cores, which is favorable in terms of manufacturing technology.
  • a valve seat can be integrally formed together with the nozzle, whereas the other valve seat can be formed by a separate component, which finds secure fit in a gradation of this valve chamber.
  • a dirt separator can be integrated.
  • the lid which closes the component downwards, will form at least part of the dirt separator. If other components are appropriate or necessary, they may be used in overlying gradations of the chamber.
  • the built-in lid dirt separator on a lockable Ausloss so that before removing the lid, as required for example for cleaning the Schmutzabscheiders or to replace the closing body, the water in the chamber can be drained. This is especially important for such aggregates that are used in living spaces, such as. The kitchen and the hallway must be installed and it must be ensured that no fluid escapes uncontrollably even during maintenance work.
  • a valve seat can be formed integrally with the chamber, whereas the other is used from below into the free end of the chamber as a separate component and is supported in a gradation.
  • the insertable into the valve chamber forming a valve seat can have both deflection and at the same time part of the Be a dirt separator.
  • it has a tooth-like arrangement in the deflection region of the flow, so as to deposit long-fibered bodies from the flow.
  • the actuation of the closing body is advantageously carried out in a conventional manner by means of a lever which is sealingly carried out through the valve chamber wall.
  • the bearing of the lever is in the region of the chamber wall, so that is moved when moving the free end of the lever, the closing body between the valve seats.
  • the lever is controlled by an electric drive, such as a spindle motor.
  • the invention provides that the forward guided free end of the lever is visible and operable even in the installed position from the front. The accessibility of this lever greatly facilitates maintenance, testing and repair work.
  • the drive actuating the lever that is, as a rule, the electric motor with, optionally, a downstream transmission, is arranged above the free end of the lever and can be removed forwards. It is then not only from the front to check the function of the drive by visual inspection, but also the drive be replaced without having to remove the valve or pump assembly.
  • connections of the valve assembly to the heating circuits are advantageously led out to one side, and preferably to the rear or to the side facing away from the pump unit, since they are easily accessible here, d. H. are well verifiable assembled and disassembled.
  • the compact unit shown in the figures consists of a pump unit 1 and a valve assembly 2.
  • the pump unit 1 consists essentially of an electric drive motor 3, to the motor housing laterally a terminal box 4 is connected and the front side is flanged to a centrifugal pump 5, from the engine 3 is driven.
  • the centrifugal pump 5 has a side out of the pump housing outgoing pressure port 6.
  • To the centrifugal pump 5 closes to the side facing away from the engine 3 side frontally a cup-shaped housing part 7, which engages over the suction port of the pump and a this upstream chamber forms, which has a valve unit 2 facing suction nozzle 8 and in the upper part of a connection for a (not shown) air separator.
  • the suction nozzle 8 is arranged transversely to the motor and impeller axis 9 and is provided for connection to a corresponding nozzle 10 on the valve assembly 2.
  • the sockets 8 and 10 of the units 1 and 2 are provided with a bayonet 11, parts of which can be seen in FIG. About this bayonet 11, the two units 1 and 2 are mechanically connected. For this purpose, first the nozzles 8 and 10 inserted into each other and then the valve assembly 2 to the pump assembly 1 as long as to rotate about the nozzle axis until the bayonet engages in the position shown in Figures 1 to 3.
  • the valve assembly is constructed of injection-molded parts and consists of a valve chamber forming a housing part 12 which has a substantially circular cross-section with two gradations 13 and 14.
  • This housing part 12 the internal structure of Figure 5 can be seen, has a first lateral connection piece 15, which is provided for connection to the intended for hot water supply heating circuit.
  • This integrally formed with the housing part 12 housing socket 15 deflects the flow in the interior by 90 degrees, where it exits at a valve seat 16.
  • the valve seat 16 can be shut off by a double-acting closing body 17.
  • the closing body 17 may close a valve seat 18 which is formed at the end of an insert 19 which rests sealingly within the step 13 of the housing part 12.
  • This insert 19 is held by a cover 20 inserted from below into the housing part 12, which rests within the step 14 of the housing part 12.
  • the insert 19 is rotationally symmetrical and has a valve member 18 downwardly extending tubular part with lateral Druchbrechungen over which the via a connecting piece 21 which is integrally formed with the housing part 12, coming from the heating circuit for the space heating water to the valve seat 18th arrives.
  • tooth-like on an inner ring Structure 22 provided in the insert 19, which are provided for collecting long-fibered, entrained in the flow of substances. Between these tooth-like structures 22 is a free passage to the below, formed within the lid 20 space, which is provided as a dirt separator.
  • a closable outlet 23 is provided, which is directed in the installed position ( Figure 3) to the front. This outlet serves to ensure that before opening the lid 20, as required for example for cleaning the dirt separator, the water contained in the valve assembly 2 can be drained.
  • the outlet 23 is this accessible from the front, the opening is made by turning the nozzle.
  • the closing body 17 selectively closes the valve seat 16 or the valve seat 18, which are arranged opposite one another and are arranged with their axis transversely to the impeller axis 9.
  • the housing part 12 also has in the upper region a connection for a mechanically and line-connected safety valve 24 which has an outlet 25 directed rearwardly in the installed position and an upwardly guided actuating pin 26, one of the safety valve 24 above and laterally overlapping U-shaped bracket 27 is included, in the web region, the thickened pin end 26 is held positively.
  • the bracket 27 is so wide that it rests on the cover of the safety valve 24 and thus raises the pin 26 at a pivotal movement forward and thus the valve 24 opens.
  • the bracket is bent near the bottom of the safety valve 29 by 90 degrees forward and led forward so far that its lever ends 28 are freely accessible from the front.
  • the housing part 7 has a lateral, with respect to the installation position forward Druchbrechung, is performed by the sealing a lever 29 and stored, the housing-internal end carries the closing body 17 and the other end led out so far forward is that it can be operated by hand in the installation position.
  • This lever 29 is subjected to a force from the underside by means of a spring 30, from the upper side through the spindle end 31 of a drive motor 32, with which the lever 29 is controllable and thus the closing body 17 between the valve seats 16 and 18 is movable. Since the spindle end 31 exerts only compressive forces on the lever 29 and the restoring forces are applied by the spring 30, the lever 29 can be operated manually with retracted spindle position.
  • the motor 32 is mounted together with the spindle gear in a receiving clamp that this can be pulled out in the installed position to the front, either to exchange the drive motor 32 or to achieve the underlying components better.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Unité compacte pour une installation de chauffage, en particulier pour une chaudière à gaz, comportant deux circuits de chauffage, un pour le chauffage des locaux et un pour la production d'eau chaude, une unité de pompe (1) et une unité de soupape (2) raccordée à celle-ci côté aspiration, l'unité de soupape (2) comprenant au moins un raccordement (10) au côté aspiration de la pompe (5) ainsi que deux raccordements (15, 21) pour liaison avec les deux circuits de chauffage de l'installation de chauffage et présentant une chambre de soupape dans laquelle débouchent les conduits vers les circuits de chauffage et à laquelle est raccordée une soupape de sûreté (24), caractérisée en ce que l'unité de soupape (2), vue dans la direction d'un axe de roue (9) de la pompe (5), est disposée à côté de l'unité de pompe (1) et est raccordée à celle-ci, en ce que la soupape de sûreté (24) est raccordée vers le haut à la chambre de soupape, dont la sortie en position de montage débouche vers l'arrière et qui est manoeuvrable au moyen d'un levier (27) accessible par l'avant.
  2. Unité compacte selon la revendication 1, caractérisée en ce que l'unité de pompe (1) présente un élément de carter (7) qui chevauche l'orifice d'aspiration de la pompe (5), et forme une chambre se raccordant à l'orifice d'aspiration, à laquelle est raccordé un séparateur d'air, cet élément de carter formant latéralement un raccordement pour l'unité de soupape.
  3. Unité compacte selon la revendication 1 ou 2, caractérisée en ce que l'unité de pompe (1) et l'unité de soupape (2) sont raccordées l'une à l'autre mécaniquement et fonctionnellement au moyen d'un joint à baïonnette (11).
  4. Unité compacte selon l'une des revendications 1 à 3, caractérisée en ce que les conduits vers les circuits de chauffage débouchent respectivement en direction opposée dans un siège de soupape (16, 18) dans la chambre de soupape et en ce que, dans la chambre de soupape, est guidé de manière mobile un élément de fermeture (17) destiné à la fermeture de l'un ou de l'autre siège de soupape (16, 18) au choix, de préférence dans une direction parallèle à l'axe de la roue (9) de la pompe (5).
  5. Unité compacte selon la revendication 4, caractérisée en ce que la chambre de soupape présente une section transversale essentiellement ronde et est réalisée de préférence en gradins, l'axe de la chambre de soupape étant situé dans le sens axial des sièges de soupapes (16, 18) disposés à l'intérieur, ou parallèlement à ceux-ci.
  6. Unité compacte selon l'une des revendications 1 à 5, caractérisée en ce que, en partie basse, est raccordé à la chambre de soupape un séparateur de boues (19, 20) qui est formé au moins partiellement par un couvercle (20) obturant la chambre vers le bas.
  7. Unité compacte selon la revendication 6, caractérisée en ce que le séparateur de boues (19, 20), de préférence le couvercle (20), présente une sortie (23) pouvant être fermée.
  8. Unité compacte selon l'une des revendications 1 à 7, caractérisée en ce que le levier (27) agissant sur la soupape de sûreté (24) chevauche la soupape de sûreté (24) des deux côtés à la manière d'un étrier et est guidé vers l'avant dans le sens opposé au sens de sortie.
  9. Unité compacte selon l'une des revendications 5 à 8, caractérisée en ce que l'un des sièges de soupape (18) disposé dans la chambre de soupape est formé par un insert (19) reposant dans au moins un gradin (13) de la chambre et l'autre siège de soupape (16) est formé d'une seule pièce avec la chambre de soupape (12).
  10. Unité compacte selon la revendication 9, caractérisée en ce que l'insert (19) de la chambre de soupape, formant le siège de soupape (18), forme également une partie du séparateur de boues (19, 20) et présente, de préférence, une structure (22) du genre à denture dans la zone de déviation de l'écoulement.
  11. Unité compacte selon l'une des revendications 4 à 10, caractérisée en ce que l'élément de fermeture (17) est disposé à l'extrémité d'un levier (29) qui est monté à pivotement et dont l'autre extrémité passe de manière étanche à travers la paroi de la chambre de soupape et là, est commandé au moyen d'une commande électrique (32), l'agencement du levier étant tel que cette autre extrémité du levier est manoeuvrable par l'avant en position de montage.
  12. Unité compacte selon la revendication 11, caractérisée en ce que la commande (32) actionnant le levier (29) est disposée au-dessus de l'extrémité libre du levier et peut être démontée vers l'avant.
  13. Unité compacte selon l'une des revendications 1 à 12, caractérisée en ce que les raccordements de l'unité de soupape (2) aux circuits de chauffage sont disposés sur un côté de préférence opposé à l'unité de pompe (1) ou sur la face arrière.
EP20000128774 2000-12-22 2000-12-22 Unité compacte Expired - Lifetime EP1217310B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20000128774 EP1217310B1 (fr) 2000-12-22 2000-12-22 Unité compacte
DE50012994T DE50012994D1 (de) 2000-12-22 2000-12-22 Kompaktaggregat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20000128774 EP1217310B1 (fr) 2000-12-22 2000-12-22 Unité compacte

Publications (2)

Publication Number Publication Date
EP1217310A1 EP1217310A1 (fr) 2002-06-26
EP1217310B1 true EP1217310B1 (fr) 2006-06-14

Family

ID=8170882

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000128774 Expired - Lifetime EP1217310B1 (fr) 2000-12-22 2000-12-22 Unité compacte

Country Status (2)

Country Link
EP (1) EP1217310B1 (fr)
DE (1) DE50012994D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1703192B1 (fr) * 2005-03-15 2013-08-14 Grundfos Management A/S Raccord à baïonnette
EP3012552B1 (fr) * 2014-10-21 2018-01-31 Grundfos Holding A/S Composant pour une installation de chauffage compacte

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439979A (de) * 1965-07-06 1967-07-15 Fr Bieri S Soehne Zentrifugalpumpe
BE789369A (fr) * 1971-09-28 1973-03-27 Itt Accelerateur pour installation de chauffage a regulation automatique
DE19711179A1 (de) * 1997-03-18 1998-09-24 Wilo Gmbh Anschlußadapter
DE19717799C5 (de) * 1997-04-26 2007-02-08 Grundfos A/S Baueinheit für eine Kompaktheizungsanlage
DE19724564B4 (de) * 1997-06-11 2007-08-16 Laing, Oliver Zirkulationspumpe mit Durchströmsperre

Also Published As

Publication number Publication date
EP1217310A1 (fr) 2002-06-26
DE50012994D1 (de) 2006-07-27

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