EP1528329B1 - Assembly for a compact heating installation - Google Patents

Assembly for a compact heating installation Download PDF

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Publication number
EP1528329B1
EP1528329B1 EP03025083A EP03025083A EP1528329B1 EP 1528329 B1 EP1528329 B1 EP 1528329B1 EP 03025083 A EP03025083 A EP 03025083A EP 03025083 A EP03025083 A EP 03025083A EP 1528329 B1 EP1528329 B1 EP 1528329B1
Authority
EP
European Patent Office
Prior art keywords
pump housing
heat exchanger
plate heat
construction unit
unit according
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
EP03025083A
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German (de)
French (fr)
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EP1528329A1 (en
Inventor
Finn Mathiesen Hoj
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
Application filed by Grundfos AS filed Critical Grundfos AS
Priority to EP03025083A priority Critical patent/EP1528329B1/en
Priority to AT03025083T priority patent/ATE504787T1/en
Priority to DE50313603T priority patent/DE50313603D1/en
Priority to CNB2004100883735A priority patent/CN100513923C/en
Publication of EP1528329A1 publication Critical patent/EP1528329A1/en
Application granted granted Critical
Publication of EP1528329B1 publication Critical patent/EP1528329B1/en
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
    • 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 
    • 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
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/083—Venting arrangements
    • 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
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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 structural unit for a compact heating system according to the features specified in the preamble in claim 1.
  • Such units are state of the art and serve to simplify or largely replace the piping within the compact heating system and also to accommodate a variety of fittings, such as valves, sensors and the like.
  • a compact design can be achieved on the other hand, the manufacturing and in particular assembly costs of the heating system can be reduced and finally the maintenance and repair can be simplified.
  • Such a unit for a compact heating system is known, for a compact heating system with two heating circuits, namely one for heating the heating water for the central heating and another for heating the service water.
  • the assembly described therein is already comparatively compact and consists essentially of three injection molded parts, of which the first forms the centrally arranged pump housing, connect to the valve body on both sides, one of which receives an air separation device.
  • the back of the unit is provided for connection of a plate heat exchanger, which is intended for heating the service water.
  • this unit comparatively much space is required for the arranged next to the pump housing air separator.
  • the depth is determined by the unit plus the plate heat exchanger.
  • the unfavorable is the out EP 0 911 590 A2 known construction in which the pump unit is set in the installation position temporally ver and arranged in front of the plate heat exchanger.
  • This construction increases both in terms of width and in terms of. the building depth considerable space.
  • the invention has the object, a generic unit for a compact heating system in such a way that the size, in particular the depth can be further reduced.
  • the basic idea of the present invention is to associate at least part of the air separation device with the pump housing or the pump housing component and thereby form the pump housing in such a way that it projects beyond the plate heat exchanger on one side.
  • the space above or below the plate heat exchanger can advantageously be used for the pump housing.
  • This additionally available installation space again makes it possible, for example in this area of the pump housing, to integrate the air separation device, at least parts of it, in order in this way to be able to build the unit in a more compact and space-saving manner.
  • the pump housing is preferably designed such that it extends below the plate heat exchanger so that the free space located there and not used can serve as additional space for the pump housing.
  • This additional space is advantageously used in conjunction with the Heilabscheide founded and serves to guide or calm the flow so that in this area the air entrained in the water separated and finally passed through a vent valve to the outside, whereas the liquid flow as far as possible free of air is led to the suction mouth of the pump.
  • the pump housing is designed stepped on the suction side, wherein the stepped part is arranged below the plate heat exchanger.
  • a nozzle-like extension may be provided, preferably in such a way that the nozzle or nozzles opening there are widened to the suction mouth of the pump, so that here too a flow slowdown and thus separation of entrained gas, in particular air is taken from the liquid stream.
  • the flow velocity is slowed specifically for the purpose of air separation
  • the air separation in the arranged below the plate heat exchanger graduated part of the pump housing can be supported according to a development of the invention even further characterized in that at least one guide body is provided within the pump housing, in particular in this aforementioned part of the housing.
  • two cooperating guide body are provided, namely a lower, which surrounds the lower part of the suction mouth of the pump and an upper which surrounds the upper part of the suction mouth of the pump, which, however, do not abut each other, but end at a distance to each other.
  • the lower guide body is preferably long-running, that is, pulled far below the plate heat exchanger, whereas the upper guide body is short and also has a smaller radius, so that its lateral ends terminate within the space surrounding the lower guide body.
  • Both guide bodies extend to just in front of the rear housing wall, so that they force the flow and divert by 180 °.
  • This guide ensure in a particularly effective way that the still entrained in the liquid flow bubbles are pushed upwards, ie to the venting chamber and do not reach the suction port of the pump.
  • the under the plate heat exchanger extending stepped pump housing part is used in an advantageous embodiment of the invention still for connecting a bypass line, which then also be arranged in this area under the plate heat exchanger can and can be formed by drawing cores in the tool for the pump housing.
  • the suction-side line opens advantageously, and the bypass and suction-side lines are preferably arranged such that they are each guided transversely to different sides below the plate heat exchanger, so that both line connections can be formed without melting cores in the tool.
  • Fig. 1 shown compact heating system is a gas boiler, as it is typically intended for wall mounting as a compact device for heat supply working with radiators space heating and for hot water / hot water production.
  • a burner 1 acts on a primary heat exchanger 2, the heated water of a heat exchanger 3, typically in the form of one or more radiators for space heating, is supplied.
  • the cooled water flows from the heat exchanger 3 back to the primary heat exchanger 2 and is circulated by means of a arranged on the cold side of the heat exchanger 2, 3 circulation pump 4.
  • a plate heat exchanger 5 is provided, in which the coming from the water network cold hot water is heated. Since the heating of the service water has to be done only in the removal case, is appropriate sensors, in particular a flow meter 6 as well as a pressure and temperature sensor 7 is provided, depending on the output signal, a servomotor 8 is driven, which controls a 3/2-way valve 9, for the domestic water heating coming from the primary heat exchanger 2 heat-conducting liquid flow instead of the heat exchanger 3 to the plate heat exchanger 5 to redirect.
  • a surge tank 10 is provided and a heat storage 11, which is connected in series between plate heat exchanger 5 and the primary heat exchanger 2, here on the cold side.
  • Fig. 1 with 3 symbolized heat exchanger is, as usual today in hot water heating systems, provided with a thermostatic valve 12, which controls the circuit in terms of flow resistance and then, if no heat demand is given locks.
  • a bypass line 13 is provided within the compact heating system with a valve 14, via which the hydraulically effective line cross section of the bypass line 13 is adjustable. Through this bypass line 13, a closed circulation circuit is ensured, even if the thermostatic valve 12 is fully closed.
  • a safety valve 15 in the form of a pressure relief valve suction side of the pump 4 are provided and two shut-off valves 16 and 17, which are connected via a line 18 to each other.
  • the heating system has a total of four line connections in the form of plug connections, namely a connection 19 for the heating flow as a port 20 for the heating return. Furthermore, there is a connection 21 provided for the domestic water inlet and a connection 22 for coming out of the plant hot water.
  • FIG. 1 framed by broken lines part of the compact heating system is formed by a structural unit 23, the structure of the basis of FIGS. 2 to 9 is shown in detail.
  • the assembly 23 is essentially composed of three injection-molded parts, namely a central, the pump housing-containing pump housing component 24, to the left in installation position seen from the front left a dashboard housing 25 and the right side a fitting housing 26.
  • the components 24, 25 and 26 are fabricated as plastic injection molded components and designed to operate without the use of fused cores, i. H. can be manufactured with comparatively inexpensive tools that work with drawing cores.
  • These components 24 to 26 are incorporated into each other in the transverse direction 27 to the impeller axis 28 of the pump and are positively secured by the rear-connected plate heat exchanger 5 in this position.
  • the pump housing component 24 has the actual pump housing and a forwardly open insertion space 29, which is provided for receiving the pump impeller and for flanging the forward adjoining motor 30.
  • the pump housing has an obliquely right above outgoing discharge nozzle 31, the free end is formed as a threaded connection and is provided for connection of the primary heat exchanger 2 leading line.
  • an air separator 32 On the suction side connected to the pump housing or integrated into the pump housing component 24 is an air separator 32, in which a conventional Lucasabscheideventil is incorporated.
  • the rearwardly directed suction mouth 33 of the pump is conductively connected to the valve housing 26 via a suction channel 34 extending in the transverse direction 27 into which it opens.
  • the suction channel 34 continues in the fitting housing 26 continues to the right and opens into a rearwardly extending from the rear channel 35, which merges into a substantially cylindrically shaped, with its cylinder axis parallel to the impeller axis 28 and forward open insertion space 36, which serves as a central Anschussbasis for other connections or lines as well as for receiving fittings.
  • a partition wall 39 is pressed into the insertion space 36 from the front.
  • This partition wall 39 is formed by a simple sheet metal or a plastic part, since it does not depend on a complete seal to the insertion space 36 out.
  • the terminals 37 and 38 are closed by blind caps, so they are out of order.
  • the insertion space 36 opens from below a line 40, at the end of the connection 20 is arranged for the heating return.
  • the bottom of the insertion space 36 is broken not only to the channel 35, but also in the upper left area (see Fig. 7 ), where a rear channel opens, which runs in alignment with a lower connecting piece 41, which is provided for connection of the plate heat exchanger 5.
  • the connecting piece 41 is formed as a pair of connecting pieces together with the overlying connecting piece 42.
  • the connecting piece 41 connects the Schuzierniklauf the heat exchanger 5 with the suction side of the pump 4.
  • the upper connecting piece 42 connects the hot water leading service water connection of the heat exchanger 5 with a vertically downwardly leading channel 43, which opens into the connection 22 for hot service water.
  • connection 66 is provided for the expansion tank 10 upwards.
  • the insertion space 36 opens an obliquely coming from above and front receiving opening 44 which is provided at the end with a part of a bayonet fitting and in which a combined pressure and temperature sensor 45 is incorporated as a plug-in part, which is equipped with the other part of the bayonet closure ,
  • the insertion space 36 itself serves to receive a Schmutzabscheiders 46, which is inserted in the manner of a sieve in this and arranged so that the coming of the terminal 20, ie from the heating return water must penetrate this before it reaches the suction channel 34 of the pump.
  • the dirt separator 46 is held in a form-fitting manner and can be pulled out to the front for cleaning purposes.
  • the insertion space 36 is provided towards the front with a bayonet closure, so that a corresponding lid can be placed without tools for the conclusion of the insertion space 36 and optionally removed again. It is understood that appropriate O-rings are provided as seals at the required locations.
  • a safety valve 15 is incorporated in the lid 47 in the form of a pressure relief valve.
  • the lid 47 forms part of the safety valve 15.
  • each transverse channels are connected, which are closed by means of the shut-off valves 16 and 17. These channels are connected to each other via a line 18 which is formed as a separate component.
  • the shut-off valve 16 can serve both to fill the system via the line 18 and the open valve 17 as well as for emptying the system after removal of the line 18 due to the horizontal nozzle.
  • the conduit 18 is mounted so that it can be detached manually without tools, so that it can be removed or inserted as needed.
  • This insertion space 48 serves to receive the 3/2-way valve 9, which is designed in the form of a slide-in fitting, which can be inserted from the front into the insertion space 48 and sealingly locked by means of a bayonet connection.
  • the insertion space 48 final bayonet connection is identical to that for the insertion space 29 so that same end cover can be used.
  • the insertion fitting 49 has, as best in Fig. 6 can be seen, two sealing seats, which are each closed by a sealing body.
  • the sealing bodies are seated on a rod 50 arranged parallel to the rotor axis 28 and are aligned and arranged such that they always close in the direction of flow, whereby when moving the rod 50 in one direction the sealing body moves toward its sealing seat and the other is lifted off the latter or in the opposite direction in the reverse manner.
  • the rod 50 is actuated by a lever 51, which is arranged pivotably in a mounting fitting 52, which is incorporated in an upwardly open insertion space 53, which has an opening to the insertion space 48.
  • the lever 51 can engage with one end on the rod carrying the sealing body 50 and with its other end to a spindle 54 which is extended by a motor 8 depending on the rotational position more or less.
  • the installation fitting 52 comprises the lever 51, the spindle 54 and the motor 8 and is inserted from above into the insertion space 53 with incorporation of an elastic and sealing cuff 56. This cuff seals the passage of the lever 51 without hindering its mobility.
  • the installation fitting 52 may additionally be sealed by O-rings relative to the insertion space 53.
  • lateral connections 58 on the left side or the connection formed by the pressure port 31 on the right side are arranged particularly advantageously, since the in installation insert from above lines to or from the primary heat exchanger 2 are easy to connect, since they spring in the transverse direction 27 over its entire length and therefore well manipulable, d. H. away from the connection or to the connection are movable.
  • the insertion space 48 has on the bottom side an opening to a substantially coaxially extending back channel, in a connection piece 59 for the plate heat exchanger. 5 empties.
  • This lower connecting piece 59 belongs to a pair whose upper connecting piece 60 is connected via a transverse channel 61 with a vertically downwardly extending channel 62, which opens into the port 21 for the service water inlet.
  • the line connection 58 is conductively connected either to the lower connection piece 59 for the plate heat exchanger 5 or to the connection 19 for the heating flow.
  • the insertion space 48 forms a connection base for almost all on this side of the pump leading channels.
  • a channel 63 extending parallel to the rotor axis 28 adjoins the channel 63 which extends perpendicularly downwards to the connection 19 and together with the channel 64 running transversely thereto, opening into the channel region 63 and extending in the direction 27, the bypass line 13 forms.
  • the transverse channel 64 opens in the lower rear region of the pump housing, ie in the suction chamber thereof, as in FIG Fig. 5 is clearly visible.
  • a spring-loaded valve 14 is inserted from behind, through which the effective cross section of the bypass line 13 is pressure-dependent.
  • On the vertical, leading to the port 21 channel 62 is a receptacle for a further pressure-temperature sensor 45 is provided to the front. Recording and sensor are formed in the same manner as that of the right fitting housing 26.
  • This pressure / temperature sensor 45 which is inserted from the front, projects into the vertical and rear-side channel 62, which leads to the connection 21 for the service water inlet.
  • the pressure sensor in conjunction with an obstruction formed in the channel 62 forms part of the flow meter 6 described in the introduction, in conjunction with a corresponding evaluation electronics, which is arranged in the terminal box 65.
  • the terminal box 65 is provided, which is arranged on the housing of the motor 30 and thus associated with the pump housing component 24.
  • the mechanical connection of the components 24, 25 and 26 takes place on the one hand via the channel connections (see Fig. 3 ) (34, 64) and on the other via corresponding, not described in detail here connecting webs, which are secured by means of threaded bolts.
  • the channel connections are plug-in connections under inclusion of an O-ring, which performs the sealing function of the compound as well as a transversely inserted to the insertion direction U-shaped bracket, which takes over the mechanical lock.
  • connections or connecting pieces described above are partially designed as plug-in connections, threaded connections or flange-like connection pieces.
  • the respective designs are only to be understood as examples and can be adapted, exchanged or modified according to the requirements.
  • the unit described above is extremely compact and is from the lateral dimensions approximately in alignment with the plate heat exchanger arranged rearwardly so that the entire unit between vertical struts of the chassis of the compact heating system is einliederbar, whereby the overall depth of the entire system can be reduced , Furthermore, all major units and fittings are accessible from the front or from the above the unit formed space so that they can be replaced and serviced without disassembly of the unit.
  • the design of the pump housing component 24, in particular in the rear part results in detail from the Figures 10 and 11 as well as in the installed state from the Figures 3 and 5 ,
  • the actual pump housing is stepped back and extends below the plate heat exchanger 5, where from the right (seen from the front) of the suction channel 34 and from the left of the transverse channel 64 connects to the bypass line 13.
  • This the heat exchanger 5 on its underside superior part 75 of the pump housing is upstream of the actual suction chamber and forms part of an air separation, the actual separator 32 connects near the top and consists of a Lucasabscheidehunt 70 and this up closing vent valve 71.
  • the suction chamber of the pump which is separated from the pressure chamber by a plate 72, opens into the suction mouth 33, which in its upper region is surrounded by an upper guide body 73 extending from the plate 72 backwards to the housing wall, approximately over 190 °. Downwardly at a distance, the suction mouth is surrounded by a lower guide body 74 which engages over the lower ends of the upper guide body 73 laterally and at a distance and also protrudes up to the rear housing wall of the pump housing component 24, specifically Fig. 10
  • the arrangement of the guide body 73 and 74 is such that the flow entering from the suction channel 34 to the in. Under the plate heat exchanger 5 lying below the plate heat exchanger 5 Fig.
  • bypass channel 64 also opens in the bottom of the suction chamber, under the lower guide body 74th

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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)
  • Water Supply & Treatment (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Basic Packing Technique (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Resistance Heating (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The modular unit for a compact heating system has a pump housing (24) and an air separator unit (32), and a plate heat exchanger (5) connected to the rear of the modular unit. The pump housing on one side protrudes beyond the plate heat exchanger and includes at least one part of the air separator. The pump housing on the suction side is stepped, whereby the stepped portion (25) is located below the plate heat exchanger, and the stepped portion forms part of the air separator.

Description

Die Erfindung betrifft eine Baueinheit für eine Kompaktheizungsanlage gemäß dem im Oberbegriff in Anspruchs 1 angegebenen Merkmalen.The invention relates to a structural unit for a compact heating system according to the features specified in the preamble in claim 1.

Derartige Baueinheiten zählen zum Stand der Technik und dienen dazu, die Verrohrung innerhalb der Kompaktheizungsanlage zu vereinfachen bzw. großteils zu ersetzen sowie darüber hinaus zur Aufnahme einer Vielzahl von Armaturen, wie beispielsweise Ventile, Sensoren und dergleichen. Hierdurch sollen einerseits eine kompakte Bauweise erzielt werden andererseits die Herstellungs- und insbesondere Montagekosten der Heizungsanlage gesenkt werden und schließlich die Wartung und Reparatur vereinfacht werden.Such units are state of the art and serve to simplify or largely replace the piping within the compact heating system and also to accommodate a variety of fittings, such as valves, sensors and the like. As a result, on the one hand a compact design can be achieved on the other hand, the manufacturing and in particular assembly costs of the heating system can be reduced and finally the maintenance and repair can be simplified.

Aus DE 100 07 873 C1 ist eine solche Baueinheit für eine Kompaktheizungsanlage bekannt, und zwar für eine Kompaktheizungsanlage mit zwei Heizkreisen, nämlich einem zur Erwärmung des Heizungswassers für die Zentralheizung und einem anderen zur Erwärmung des Brauchwassers. Die dort beschriebene Baueinheit ist schon vergleichsweise kompakt aufgebaut und besteht im Wesentlichen aus drei Spritzgussteilen, von denen das erste das zentral angeordnete Pumpengehäuse bildet, an das zu beiden Seiten Armaturengehäuse anschließen, von denen eines eine Luftabscheideeinrichtung aufnimmt. Rückseitig ist die Baueinheit zum Anschluss eines Plattenwärmertauschers vorgesehen, welcher zur Erwärmung des Brauchwassers bestimmt ist. Bei dieser Baueinheit wird vergleichsweise viel Bauraum für die neben dem Pumpengehäuse angeordnete Luftabscheideeinrichtung benötigt. Darüber hinaus ist die Bautiefe durch die der Baueinheit zuzüglich der des Plattenwärmertauschers bestimmt.Out DE 100 07 873 C1 Such a unit for a compact heating system is known, for a compact heating system with two heating circuits, namely one for heating the heating water for the central heating and another for heating the service water. The assembly described therein is already comparatively compact and consists essentially of three injection molded parts, of which the first forms the centrally arranged pump housing, connect to the valve body on both sides, one of which receives an air separation device. The back of the unit is provided for connection of a plate heat exchanger, which is intended for heating the service water. In this unit comparatively much space is required for the arranged next to the pump housing air separator. In addition, the depth is determined by the unit plus the plate heat exchanger.

Insoweit noch ungünstiger ist die aus EP 0 911 590 A2 bekannte Konstruktion, bei welcher das Pumpenaggregat in Einbaulage zeitlich ver setzt und vor dem Plattenwärmetauscher angeordnet ist. Diese Konstruktion nimmt sowohl hinsichtlich der Breite als auch hinsichtlich. der Bautiefe erheblichen Raum ein.In that regard, the unfavorable is the out EP 0 911 590 A2 known construction in which the pump unit is set in the installation position temporally ver and arranged in front of the plate heat exchanger. This construction increases both in terms of width and in terms of. the building depth considerable space.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine gattungsgemäße Baueinheit für eine Kompaktheizungsanlage so auszubilden, dass die Baugröße, insbesondere die Tiefe noch weiter reduziert werden kann.Against this background, the invention has the object, a generic unit for a compact heating system in such a way that the size, in particular the depth can be further reduced.

Diese Aufgabe wird gemäß der Erfindung durch die in Anspruch 1 angegebenen Merkmale gelöst. Vorteilhafte Ausgestaltung der Erfindung sind in den Unteransprüchen sowie der nachfolgenden Beschreibung angegeben.This object is achieved according to the invention by the features specified in claim 1. Advantageous embodiments of the invention are specified in the dependent claims and the following description.

Grundgedanke der vorliegenden Erfindung ist es, zumindest einen Teil der Luftabscheideeinrichtung dem Pumpengehäuse bzw. dem Pumpengehäusebauteil zuzuordnen und dabei das Pumpengehäuse so auszubilden, dass es dem Plattenwärmertauscher an einer Seite überragt. Durch diese erfindungsgemäße Anordnung kann der Raum über unter oder neben dem Plattenwärmertauscher in vorteilhafter Weise für das Pumpengehäuse genutzt werden. Dieser zusätzlich zur Verfügung stehende Bauraum ermöglicht es wiederum zum Beispiel in diesem Bereich des Pumpengehäuses die Luftabscheideeinrichtung, zumindest Teile davon zu integrieren um auf diese Weise die Baueinheit noch kompakter und Platz sparender bauen zu können.The basic idea of the present invention is to associate at least part of the air separation device with the pump housing or the pump housing component and thereby form the pump housing in such a way that it projects beyond the plate heat exchanger on one side. By means of this arrangement according to the invention, the space above or below the plate heat exchanger can advantageously be used for the pump housing. This additionally available installation space again makes it possible, for example in this area of the pump housing, to integrate the air separation device, at least parts of it, in order in this way to be able to build the unit in a more compact and space-saving manner.

Bevorzugt ist dabei das Pumpengehäuse so ausgebildet, dass es bis unter dem Plattenwärmertauscher reicht, so dass der dort befindliche und nicht genutzte Freiraum als zusätzlicher Raum für das Pumpengehäuse dienen kann. Dieser zusätzliche Raum wird in vorteilhafter Weise im Zusammenhang mit der Luftabscheideeinrichtung eingesetzt und dient dazu, die Strömung so zu führen bzw. zu beruhigen, dass in diesem Bereich die im Wasser mitgeführte Luft abgeschieden und schließlich durch ein Entlüftungsventil ins Freie geführt wird, wohingegen der Flüssigkeitsstrom weitest gehend von Luft befreit zum Saugmund der Pumpe geführt wird.In this case, the pump housing is preferably designed such that it extends below the plate heat exchanger so that the free space located there and not used can serve as additional space for the pump housing. This additional space is advantageously used in conjunction with the Luftabscheideeinrichtung and serves to guide or calm the flow so that in this area the air entrained in the water separated and finally passed through a vent valve to the outside, whereas the liquid flow as far as possible free of air is led to the suction mouth of the pump.

Vorzugsweise ist hierzu das Pumpengehäuse saugseitig abgestuft ausgebildet, wobei der abgestufte Teil unter dem Plattenwärmertauscher angeordnet ist. Gemäß einer vereinfachten Ausführungsform der Erfindung kann jedoch statt des abgestuften Pumpengehäuses eine stutzenartige Erstreckung vorgesehen sein, bevorzugt derart, dass der oder die dort einmündenden Stutzen zum Saugmund der Pumpe in aufweitend ausgebildet sind, so dass auch hier eine Strömungsverlangsamung und somit Abscheidung von mitgeführten Gas, insbesondere Luft aus dem Flüssigkeitsstrom erfolgt.Preferably, for this purpose, the pump housing is designed stepped on the suction side, wherein the stepped part is arranged below the plate heat exchanger. According to a simplified embodiment of the invention, however, instead of the stepped pump housing, a nozzle-like extension may be provided, preferably in such a way that the nozzle or nozzles opening there are widened to the suction mouth of the pump, so that here too a flow slowdown and thus separation of entrained gas, in particular air is taken from the liquid stream.

Gerade dieser Teil des Pumpengehäuses, der unter dem Plattenwärmetauscher angeordnet ist, wird zweckmäßigerweise als Teil der Luftabscheideeinrichtung genutzt, da hier ein vergleichsweise großer Freiraum vorhanden ist, der zur Beruhigung der Strömung und zur Abscheidung der Luft genutzt werden kann und ansonsten ungenutzt ist. Dadurch kann der sonst übliche vergleichsweise große Luftabscheidezylinder, wie er beispielsweise aus dem Stand der Technik nach DE 100 07 873 C1 am Armaturengehäuse neben der Pumpe bekannt ist, weitgehend entfallen bzw. funktionell teilweise in den unter dem Plattenwärmetauscher befindlichen Freiraum gelegt werden.Especially this part of the pump housing, which is arranged under the plate heat exchanger is suitably used as part of the air separation, since a comparatively large space is available here, which can be used to calm the flow and the separation of the air and is otherwise unused. This allows the otherwise comparatively large Luftabscheidezylinder, as he, for example, from the prior art DE 100 07 873 C1 is known on the valve body next to the pump, largely omitted or functionally placed partially in the space located below the plate heat exchanger free space.

Zusätzlich zu diesem Raum, in dem die Strömungsgeschwindigkeit gezielt zum Zwecke der Luftabscheidung verlangsamt wird, ist vorzugsweise am nicht abgestuften Teil des Pumpengehäuses, typischerweise oberhalb des Saugmundes eine an das Pumpengehäuse nach oben anschließende Luftscheidekammer vorgesehen, in welche die aus dem Flüssigkeitsstrom abgeschiedene Luft geleitet wird und in der eine Luftwasserschichtung stattfindet, so dass die in der oben liegenden Schicht befindliche Luft in an sich bekannter Weise mittels eines Entlüftungsventils, das am oberen Ende der Luftabscheidekammer vorgesehen ist, ins Freie geleitet werden kann. Da die Luftabscheidekammer nicht wie beim Stand der Technik zum eigentlichen Abscheidevorgang benötigt wird, sondern hierfür bereits der unterhalb des Plattenwärmetauschers angeordnete Gehäuseteil, in welchem eine Strömungsberuhigung und -umlenkung eintritt, kann diese Luftabscheidekammer vergleichsweise kompakt und Platz sparend ausgebildet sein.In addition to this space, in which the flow velocity is slowed specifically for the purpose of air separation, is preferably provided on the non-stepped portion of the pump housing, typically above the suction mouth to the pump housing upwardly adjoining air separator chamber into which the separated air from the liquid flow is passed and in which an air-water stratification takes place so that the air in the upper layer lies in a manner known per se by means of a venting valve, which is provided at the upper end of the Luftabscheidekammer, can be directed into the open. Since the Luftabscheidekammer not required for the actual deposition as in the prior art, but this already arranged below the plate heat exchanger housing part in which a flow calming and deflection occurs, this Luftabscheidekammer can be made comparatively compact and space-saving.

Die Luftabscheidung in dem unter dem Plattenwärmetauscher angeordneten abgestuften Teil des Pumpengehäuses kann gemäß einer Weiterbildung der Erfindung noch dadurch unterstützt werden, dass mindestens ein Leitkörper innerhalb des Pumpengehäuses vorgesehen wird, und zwar insbesondere in diesem vorgenannten Teil des Gehäuses. Bevorzugt sind zwei zusammenwirkende Leitkörper vorgesehen, und zwar ein unterer, welcher den unteren Teil des Saugmunds der Pumpe umgibt sowie ein oberer der den oberen Teil des Saugmunds der Pumpe umgibt, die jedoch nicht aufeinander stoßen, sondern mit Abstand zueinander enden. Dabei ist der untere Leitkörper vorzugsweise lang auslaufend, also bis weit unter dem Plattenwärmetauscher gezogen, wohingegen der obere Leitkörper kurz ausgebildet ist und auch einen geringeren Radius aufweist, so dass seine seitlichen Ende innerhalb des vom unteren Leitkörpers umgebenden Raum enden. Beide Leitkörper reichen bis unmittelbar vor die rückseitige Gehäusewand, so dass sie die Strömung zwangsführen und um 180° umlenken. Diese Leitkörper sorgen in besonderer effektiver Weise dafür, dass die noch im Flüssigkeitsstrom mitgeführten Blasen nach oben, also zur Entlüftungskammer hin gedrängt werden und nicht zum Saugmund der Pumpe gelangen.
Der sich unter dem Plattenwärmetauscher erstreckende abgestufte Pumpengehäuseteil wird in vorteilhafter Weiterbildung der Erfindung noch zum Anschluss eine Bypassleitung genutzt, welche dann ebenfalls in diesem Bereich unter dem Plattenwärmetauscher angeordnet sein kann und durch Ziehkerne im Werkzeug für das Pumpengehäuse ausgebildet werden kann. In gleicher Weise mündet vorteilhaft auch die saugseitige Leitung, bevorzugt sind die Bypass- und die saugseitige Leitung so angeordnet, dass sie jeweils zu unterschiedlichen Seiten unterhalb des Plattenwärmetauschers quer geführt sind, so dass beide Leitungsanschlüsse ohne Schmelzkerne im Werkzeug gebildet werden können.The air separation in the arranged below the plate heat exchanger graduated part of the pump housing can be supported according to a development of the invention even further characterized in that at least one guide body is provided within the pump housing, in particular in this aforementioned part of the housing. Preferably, two cooperating guide body are provided, namely a lower, which surrounds the lower part of the suction mouth of the pump and an upper which surrounds the upper part of the suction mouth of the pump, which, however, do not abut each other, but end at a distance to each other. In this case, the lower guide body is preferably long-running, that is, pulled far below the plate heat exchanger, whereas the upper guide body is short and also has a smaller radius, so that its lateral ends terminate within the space surrounding the lower guide body. Both guide bodies extend to just in front of the rear housing wall, so that they force the flow and divert by 180 °. This guide ensure in a particularly effective way that the still entrained in the liquid flow bubbles are pushed upwards, ie to the venting chamber and do not reach the suction port of the pump.
The under the plate heat exchanger extending stepped pump housing part is used in an advantageous embodiment of the invention still for connecting a bypass line, which then also be arranged in this area under the plate heat exchanger can and can be formed by drawing cores in the tool for the pump housing. In the same way, the suction-side line opens advantageously, and the bypass and suction-side lines are preferably arranged such that they are each guided transversely to different sides below the plate heat exchanger, so that both line connections can be formed without melting cores in the tool.

Die Erfindung ist nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
ein vereinfachtes Schaltbild einer Kompaktheizungsanlage mit einer erfindungsgemäßen Baueinheit,
Fig. 2
die komplett bestückte Baueinheit in perspektivischer Ansicht von rechts oben und vorne,
Fig. 3
die Baueinheit nach Fig. 2 in perspektivischer Ansicht von rechts unten und hinten,
Fig. 4
die Baueinheit in Darstellung nach Fig. 2 ohne Pumpenkopf und mit nach vorne offenen, unbestückten Einbauräumen,
Fig. 5
die Baueinheit nach Fig. 2 in perspektivischer Ansicht mit abgenommenen Plattenwärmetauscher von oben links und hinten,
Fig. 6
einen Schnitt durch das ventilseitige Armaturengehäuse in einer in Einschubrichtung liegenden Ebene,
Fig. 7
eine Ansicht der Baueinheit von vorne mit abgenommenen Pumpenkopf und nach vorne offenen und unbestückten Einbauräumen,
Fig. 8
in perspektivischer Darstellung von rechts oben und hinten das schmutzabscheiderseitige Armaturengehäuse,
Fig. 9
das schmutzabscheiderseitige Armaturengehäuse gemäß Fig. 8 in teilweiser Schnittdarstellung,
Fig. 10
den hinter dem Saugmund liegenden Teil des Pumpengehäuses in perspektivischer Teilschnittdarstellung und
Fig. 11
einen Schnitt durch das Pumpengehäuse quer zur Laufradachse und in Strömungsrichtung unmittelbar vor dem Saugmund in Ansicht von hinten.
The invention is explained in more detail with reference to an embodiment shown in the drawing. Show it:
Fig. 1
a simplified circuit diagram of a compact heating system with a structural unit according to the invention,
Fig. 2
the fully assembled unit in perspective view from the top right and front,
Fig. 3
the assembly after Fig. 2 in perspective view from bottom right and back,
Fig. 4
the unit according to representation Fig. 2 without pump head and with open, unpopulated installation spaces,
Fig. 5
the assembly after Fig. 2 in a perspective view with removed plate heat exchanger from top left and rear,
Fig. 6
a section through the valve-side fitting housing in a plane lying in the direction of insertion,
Fig. 7
a view of the unit from the front with removed pump head and front open and unpopulated installation spaces,
Fig. 8
in a perspective view from the top right and behind the dirt separator side valve body,
Fig. 9
the Schmutzabscheiderseitige valve body according to Fig. 8 in partial sectional view,
Fig. 10
the lying behind the suction part of the pump housing in a perspective partial sectional view and
Fig. 11
a section through the pump housing transverse to the impeller axis and in the flow direction immediately in front of the suction mouth in view from the rear.

Die anhand von Fig. 1 dargestellte Kompaktheizungsanlage ist eine Gastherme, wie sie typischerweise zur Wandmontage als kompaktes Gerät zur Wärmeversorgung einer mit Heizkörpern arbeitenden Raumheizung sowie zur Brauchwasser-/Warmwassererzeugung vorgesehen ist. Ein Brenner 1 beaufschlagt einen Primärwärmetauscher 2, dessen aufgeheiztes Wasser einen Wärmetauscher 3, typischerweise in Form ein oder mehrerer Heizkörper für die Raumheizung, zugeführt wird. Das abgekühlte Wasser fließt aus dem Wärmetauscher 3 wieder zum Primärwärmetauscher 2 und wird mittels einer auf der kalten Seite der Wärmetauscher 2, 3 angeordneten Umwälzpumpe 4 umgewälzt.The basis of Fig. 1 shown compact heating system is a gas boiler, as it is typically intended for wall mounting as a compact device for heat supply working with radiators space heating and for hot water / hot water production. A burner 1 acts on a primary heat exchanger 2, the heated water of a heat exchanger 3, typically in the form of one or more radiators for space heating, is supplied. The cooled water flows from the heat exchanger 3 back to the primary heat exchanger 2 and is circulated by means of a arranged on the cold side of the heat exchanger 2, 3 circulation pump 4.

Für die Brauchwassererwärmung ist ein Plattenwärmetauscher 5 vorgesehen, in dem das aus dem Wasserleitungsnetz kommende kalte Brauchwasser erwärmt wird. Da die Erwärmung des Brauchwassers nur im Entnahmefall zu erfolgen hat, ist entsprechende Sensorik, insbesondere ein Durchflussmesser 6 so wie ein Druck- und Temperatursensor 7 vorgesehen, in Abhängigkeit deren Ausgangssignal ein Stellmotor 8 angesteuert wird, der ein 3/2-Wegeventil 9 ansteuert, um für die Brauchwassererwärmung den vom Primärwärmetauscher 2 kommenden wärmeführenden Flüssigkeitsstrom statt zum Wärmetauscher 3 zum Plattenwärmetauscher 5 umzusteuern.For hot water heating, a plate heat exchanger 5 is provided, in which the coming from the water network cold hot water is heated. Since the heating of the service water has to be done only in the removal case, is appropriate sensors, in particular a flow meter 6 as well as a pressure and temperature sensor 7 is provided, depending on the output signal, a servomotor 8 is driven, which controls a 3/2-way valve 9, for the domestic water heating coming from the primary heat exchanger 2 heat-conducting liquid flow instead of the heat exchanger 3 to the plate heat exchanger 5 to redirect.

Das Schaubild nach Fig. 1 erhebt keinen Anspruch auf Vollständigkeit. Innerhalb der Kompaktheizungsanlage ist ein Ausgleichsbehälter 10 vorgesehen sowie ein Wärmespeicher 11, der zwischen Plattenwärmetauscher 5 und dem Primärwärmetauscher 2, hier auf der kalten Seite, in Reihe geschaltet ist.The graph after Fig. 1 makes no claim to completeness. Within the compact heating system, a surge tank 10 is provided and a heat storage 11, which is connected in series between plate heat exchanger 5 and the primary heat exchanger 2, here on the cold side.

Der in Fig. 1 mit 3 symbolisierte Wärmetauscher (Heizkörper) ist, wie heute bei Warmwasserheizungsanlagen üblich, mit einem Thermostatventil 12 versehen, das den Kreislauf hinsichtlich des Durchflusswiderstandes steuert und dann, wenn kein Wärmebedarf gegeben ist, sperrt. Für letzteren Fall ist innerhalb der Kompaktheizungsanlage eine Bypassleitung 13 vorgesehen mit einem Ventil 14, über das der hydraulisch wirksame Leitungsquerschnitt der Bypassleitung 13 einstellbar ist. Durch diese Bypassleitung 13 ist ein geschlossener Umwälzkreislauf sichergestellt, selbst wenn das Thermostatventil 12 vollständig geschlossen ist.The in Fig. 1 with 3 symbolized heat exchanger (radiator) is, as usual today in hot water heating systems, provided with a thermostatic valve 12, which controls the circuit in terms of flow resistance and then, if no heat demand is given locks. For the latter case, a bypass line 13 is provided within the compact heating system with a valve 14, via which the hydraulically effective line cross section of the bypass line 13 is adjustable. Through this bypass line 13, a closed circulation circuit is ensured, even if the thermostatic valve 12 is fully closed.

Weiterhin sind ein Sicherheitsventil 15 in Form eines Überdruckventils saugseitig der Pumpe 4 vorgesehen sowie zwei Absperrventile 16 und 17, die über eine Leitung 18 miteinander verbunden sind.Furthermore, a safety valve 15 in the form of a pressure relief valve suction side of the pump 4 are provided and two shut-off valves 16 and 17, which are connected via a line 18 to each other.

Neben den elektrischen und Gasleitungsanschlüssen für die Kompaktheizungsanlage, die in den Figuren nicht dargestellt sind, weist die Heizungsanlage insgesamt vier Leitungsanschlüsse in Form von Steckanschlüssen auf, nämlich einen Anschluss 19 für den Heizungsvorlauf so wie einen Anschluss 20 für den Heizungsrücklauf. Weiterhin ist ein Anschluss 21 für den Brauchwasserzulauf und ein Anschluss 22 für das aus der Anlage kommende warme Brauchwasser vorgesehen.In addition to the electrical and gas line connections for the compact heating system, which are not shown in the figures, the heating system has a total of four line connections in the form of plug connections, namely a connection 19 for the heating flow as a port 20 for the heating return. Furthermore, there is a connection 21 provided for the domestic water inlet and a connection 22 for coming out of the plant hot water.

Der in Fig. 1 durch unterbrochene Linien eingerahmte Teil der Kompaktheizungsanlage ist durch eine Baueinheit 23 gebildet, deren Aufbau anhand der Figuren 2 bis 9 im Einzelnen dargestellt ist.The in Fig. 1 framed by broken lines part of the compact heating system is formed by a structural unit 23, the structure of the basis of FIGS. 2 to 9 is shown in detail.

Die Baueinheit 23 ist im Wesentlich aus drei Spritzgussteilen aufgebaut, nämlich einen zentralen, das Pumpengehäuse beinhaltenden Pumpengehäusebauteil 24, an das in Einbaulage von vorne gesehen linksseitig ein Armaturengehäuse 25 und rechtsseitig ein Armaturengehäuse 26 anschließen. Die Bauteile 24, 25 und 26 sind als Spritzgussbauteile aus Kunststoff hergestellt und so ausgelegt, dass sie ohne die Verwendung von Schmelzkernen, d. h. mit vergleichsweise kostengünstig aufgebauten Werkzeugen, die mit Ziehkernen arbeiten, hergestellt werden können. Diese Bauteile 24 bis 26 sind in Querrichtung 27 zur Laufradachse 28 der Pumpe ineinander eingegliedert und werden durch den rückwärtig angeschlossenen Plattenwärmetauscher 5 formschlüssig in dieser Position gesichert.The assembly 23 is essentially composed of three injection-molded parts, namely a central, the pump housing-containing pump housing component 24, to the left in installation position seen from the front left a dashboard housing 25 and the right side a fitting housing 26. The components 24, 25 and 26 are fabricated as plastic injection molded components and designed to operate without the use of fused cores, i. H. can be manufactured with comparatively inexpensive tools that work with drawing cores. These components 24 to 26 are incorporated into each other in the transverse direction 27 to the impeller axis 28 of the pump and are positively secured by the rear-connected plate heat exchanger 5 in this position.

Das Pumpengehäusebauteil 24 weist das eigentliche Pumpengehäuse auf sowie einen nach vorne offenen Einschubraum 29, der zur Aufnahme des Pumpenlaufrads sowie zum Anflanschen des sich daran nach vorne anschließenden Motors 30 vorgesehen ist. Das Pumpengehäuse weist einen nach schräg rechts oben abgehenden Druckstutzen 31 auf, dessen freies Ende als Gewindeanschluss ausgebildet und zum Anschluss der zum Primärwärmetauscher 2 führenden Leitung vorgesehen ist. Saugseitig an das Pumpengehäuse angeschlossen bzw. in das Pumpengehäusebauteil 24 integriert ist ein Luftabscheider 32, in dem ein übliches Luftabscheideventil eingegliedert ist.The pump housing component 24 has the actual pump housing and a forwardly open insertion space 29, which is provided for receiving the pump impeller and for flanging the forward adjoining motor 30. The pump housing has an obliquely right above outgoing discharge nozzle 31, the free end is formed as a threaded connection and is provided for connection of the primary heat exchanger 2 leading line. On the suction side connected to the pump housing or integrated into the pump housing component 24 is an air separator 32, in which a conventional Luftabscheideventil is incorporated.

Der nach hinten gerichtete Saugmund 33 der Pumpe ist über einen in Querrichtung 27 verlaufenden Saugkanal 34 mit dem Armaturengehäuse 26 leitungsverbunden, in das dieser mündet. Der Saugkanal 34 setzt sich im Armaturengehäuse 26 weiter nach rechts fort und mündet in einen von hinten schräg nach vorne und oben verlaufenden Kanal 35, welcher in einen im Wesentlichen zylindrisch ausgebildeten, mit seiner Zylinderachse parallel zur Laufradachse 28 und nach vorne offenen Einschubraum 36 übergeht, der eine zentrale Anschussbasis für weitere Anschlüsse bzw. Leitungen so wie zur Aufnahme von Armaturen dient.The rearwardly directed suction mouth 33 of the pump is conductively connected to the valve housing 26 via a suction channel 34 extending in the transverse direction 27 into which it opens. The suction channel 34 continues in the fitting housing 26 continues to the right and opens into a rearwardly extending from the rear channel 35, which merges into a substantially cylindrically shaped, with its cylinder axis parallel to the impeller axis 28 and forward open insertion space 36, which serves as a central Anschussbasis for other connections or lines as well as for receiving fittings.

In den Einschubraum 36 des rechten Armaturengehäuses 21 münden die Kanäle zweier nach rechts herausgeführte Leitungsanschlüsse 37 und 38, die zum Anschluss des Wärmespeichers 11 dienen. Um die eingangs beschriebene Reihenschaltung zu erzielen, ist in den Einschubraum 36 von vorne eine Trennwand 39 eingepresst. Diese Trennwand 39 ist durch ein einfaches Blech oder ein Kunststoffteil gebildet, da es hier auf eine vollständige Abdichtung zum Einschubraum 36 hin nicht ankommt. Für Ausführungen, bei denen kein Wärmespeicher 11 eingesetzt wird, wird die Trennwand 39 nicht eingesetzt, die Anschlüsse 37 und 38 werden durch Blindkappen verschlossen, so das sie außer Funktion sind.In the insertion space 36 of the right fitting housing 21 open the channels of two led out to the right line connections 37 and 38, which serve to connect the heat accumulator 11. In order to achieve the series connection described above, a partition wall 39 is pressed into the insertion space 36 from the front. This partition wall 39 is formed by a simple sheet metal or a plastic part, since it does not depend on a complete seal to the insertion space 36 out. For embodiments in which no heat storage 11 is used, the partition wall 39 is not used, the terminals 37 and 38 are closed by blind caps, so they are out of order.

In den Einschubraum 36 mündet von unten eine Leitung 40, an deren Ende der Anschluss 20 für den Heizungsrücklauf angeordnet ist.In the insertion space 36 opens from below a line 40, at the end of the connection 20 is arranged for the heating return.

Der Boden des Einschubraums 36 ist nicht nur zum Kanal 35 hin durchbrochen, sondern auch im linken oberen Bereich (siehe Fig. 7), wo ein rückwärtiger Kanal mündet, welcher fluchtend zu einem unteren Anschlussstutzen 41 verläuft, der zum Anschluss des Plattenwärmetauscher 5 vorgesehen ist. Der Anschlussstutzen 41 ist als Anschlussstutzenpaar zusammen mit dem darüber liegenden Anschlussstutzen 42 ausgebildet. Der Anschlussstutzen 41 verbindet den Heizwasserkreislauf des Wärmetauschers 5 mit der Saugseite der Pumpe 4. Der obere Anschlussstutzen 42 hingegen verbindet den Warmwasser führenden Brauchwasseranschluss des Wärmetauschers 5 mit einem senkrecht nach unten führenden Kanal 43, welcher in dem Anschluss 22 für warmes Brauchwasser mündet.The bottom of the insertion space 36 is broken not only to the channel 35, but also in the upper left area (see Fig. 7 ), where a rear channel opens, which runs in alignment with a lower connecting piece 41, which is provided for connection of the plate heat exchanger 5. The connecting piece 41 is formed as a pair of connecting pieces together with the overlying connecting piece 42. The connecting piece 41 connects the Heizwasserkreislauf the heat exchanger 5 with the suction side of the pump 4. The upper connecting piece 42, however, connects the hot water leading service water connection of the heat exchanger 5 with a vertically downwardly leading channel 43, which opens into the connection 22 for hot service water.

Nahe dem rückseitigen Ende des Einschubraums 36 ist nach oben ein Anschluss 66 für den Ausgleichsbehälter 10 vorgesehen.Near the rear end of the insertion space 36, a connection 66 is provided for the expansion tank 10 upwards.

Weiterhin mündet in dem Einschubraum 36 eine schräg von oben und vorne kommende Aufnahmeöffnung 44, welche am Ende mit einem Teil eines Bajonettverschlusses versehen ist und in die ein kombinierter Druck- und Temperatursensor 45 als Einsteckteil eingegliedert ist, der mit dem anderen Teil des Bajonettverschlusses ausgestattet ist.Furthermore, in the insertion space 36 opens an obliquely coming from above and front receiving opening 44 which is provided at the end with a part of a bayonet fitting and in which a combined pressure and temperature sensor 45 is incorporated as a plug-in part, which is equipped with the other part of the bayonet closure ,

Der Einschubraum 36 selbst dient zur Aufnahme eines Schmutzabscheiders 46, der nach Art eines Siebes in diesen eingesetzt und so angeordnet ist, dass das vom Anschluss 20, also aus dem Heizungsrücklauf kommende Wasser diesen durchdringen muss, bevor es zum Saugkanal 34 der Pumpe gelangt. Der Schmutzabscheider 46 ist formschlüssig gehalten und nach vorne zur Reinigungszwecken herausziehbar.The insertion space 36 itself serves to receive a Schmutzabscheiders 46, which is inserted in the manner of a sieve in this and arranged so that the coming of the terminal 20, ie from the heating return water must penetrate this before it reaches the suction channel 34 of the pump. The dirt separator 46 is held in a form-fitting manner and can be pulled out to the front for cleaning purposes.

Der Einschubraum 36 ist nach vorne hin mit einem Bajonettverschluss versehen, so dass ein entsprechender Deckel zum Abschluss des Einschubraumes 36 ohne Werkzeug aufgesetzt und gegebenenfalls wieder entfernt werden kann. Es versteht sich, dass entsprechende O-Ringe als Dichtungen an den erforderlichen Stellen vorgesehen sind.The insertion space 36 is provided towards the front with a bayonet closure, so that a corresponding lid can be placed without tools for the conclusion of the insertion space 36 and optionally removed again. It is understood that appropriate O-rings are provided as seals at the required locations.

In der dargestellten Ausführungsform ist in den Deckel 47 ein Sicherheitsventil 15 in Form eines Überdruckventils eingliedert. Dabei bildet der Deckel 47 Teil des Sicherheitsventils 15.In the illustrated embodiment, a safety valve 15 is incorporated in the lid 47 in the form of a pressure relief valve. In this case, the lid 47 forms part of the safety valve 15.

Sowohl an dem nach unten verlaufenden Kanal 40 zum Anschluss der Heizungsrücklaufs als auch an dem Anschlussstutzen 42 sind jeweils Querkanäle angeschlossen, welche mittels der Absperrventile 16 und 17 verschließbar sind. Diese Kanäle sind über eine Leitung 18 miteinander verbunden, die als gesondertes Bauteil ausgebildet ist. Das Absperrventil 16 kann aufgrund des waagerechten Stutzens sowohl zum Befüllen der Anlage über die Leitung 18 und das geöffnete Ventil 17 als auch zum Entleeren der Anlage nach Entfernen der Leitung 18 dienen. Die Leitung 18 ist so angebracht, dass sie ohne Werkzeug von Hand lösbar ist, so dass sie je nach Bedarf entfernt oder eingefügt werden kann.Both on the downwardly extending channel 40 for connecting the heating return and on the connecting piece 42 each transverse channels are connected, which are closed by means of the shut-off valves 16 and 17. These channels are connected to each other via a line 18 which is formed as a separate component. The shut-off valve 16 can serve both to fill the system via the line 18 and the open valve 17 as well as for emptying the system after removal of the line 18 due to the horizontal nozzle. The conduit 18 is mounted so that it can be detached manually without tools, so that it can be removed or inserted as needed.

Das sich von vorne gesehen linksseitig an das Pumpengehäusebauteil 24 anschließende Armaturengehäuse 25 weist ebenfalls einen im Wesentlichen zylindrischen bzw. abgestuft zylindrisch ausgebildeten Einschubraum 48 auf, dessen Längsachse parallel zur Laufradachse 28 angeordnet ist. Dieser Einschubraum 48 dient zur Aufnahme des 3/2-Wegeventils 9, das in Form einer Einschubarmatur ausgebildet ist, welche von vorne in den Einschubraum 48 einsetzbar und mittels einer Bajonettverbindung dichtend verriegelbar ist. Die den Einschubraum 48 abschließende Bajonettverbindung ist identisch mit der für den Einschubraum 29, so dass gleiche Abschlussdeckel verwendet werde können.The fitting housing 25, which adjoins the pump housing component 24 from the front, likewise has a substantially cylindrical or graduated cylindrically designed insertion space 48, the longitudinal axis of which is arranged parallel to the impeller axis 28. This insertion space 48 serves to receive the 3/2-way valve 9, which is designed in the form of a slide-in fitting, which can be inserted from the front into the insertion space 48 and sealingly locked by means of a bayonet connection. The insertion space 48 final bayonet connection is identical to that for the insertion space 29 so that same end cover can be used.

Die Einschubarmatur 49 weist, wie am besten in Fig. 6 zu erkennen ist, zwei Dichtsitze auf, welche jeweils von einem Dichtkörper verschließbar sind. Die Dichtkörper sitzen auf einer parallel zur Laufradachse 28 angeordneten Stab 50 und sind so ausgerichtet und angeordnet, dass sie stets gegen Strömungsrichtung schließen, wobei beim Bewegen des Stabs 50 in eine Richtung der eine Dichtkörper auf seinen Dichtsitz zu bewegt und der andere von diesem abgehoben wird bzw. in Gegenrichtung in umgekehrter Weise.The insertion fitting 49 has, as best in Fig. 6 can be seen, two sealing seats, which are each closed by a sealing body. The sealing bodies are seated on a rod 50 arranged parallel to the rotor axis 28 and are aligned and arranged such that they always close in the direction of flow, whereby when moving the rod 50 in one direction the sealing body moves toward its sealing seat and the other is lifted off the latter or in the opposite direction in the reverse manner.

Betätigt wird der Stab 50 durch einen Hebel 51, der schwenkbeweglich in einer Einbauarmatur 52 angeordnet ist, die in einem nach oben offenen Einschubraum 53 eingliedert ist, der eine Durchbrechung zum Einschubraum 48 aufweist. Auf diese Weise kann der Hebel 51 mit einem Ende an dem die Dichtkörper tragenden Stab 50 und mit seinem anderen Ende an eine Spindel 54 angreifen, die von einem Motor 8 je nach Drehstellung mehr oder weniger weit ausgefahren wird. Die Einbauarmatur 52 umfasst den Hebel 51, die Spindel 54 sowie den Motor 8 und ist von oben in den Einschubraum 53 unter Eingliederung einer elastischen und dichtenden Manschette 56 eingesetzt. Diese Manschette dichtet die Durchführung des Hebels 51 ab ohne dessen Beweglichkeit zu behindern. Darüber hinaus kann die Einbauarmatur 52 zusätzlich noch durch O-Ringe gegenüber dem Einschubraum 53 abgedichtet sein.The rod 50 is actuated by a lever 51, which is arranged pivotably in a mounting fitting 52, which is incorporated in an upwardly open insertion space 53, which has an opening to the insertion space 48. In this way, the lever 51 can engage with one end on the rod carrying the sealing body 50 and with its other end to a spindle 54 which is extended by a motor 8 depending on the rotational position more or less. The installation fitting 52 comprises the lever 51, the spindle 54 and the motor 8 and is inserted from above into the insertion space 53 with incorporation of an elastic and sealing cuff 56. This cuff seals the passage of the lever 51 without hindering its mobility. In addition, the installation fitting 52 may additionally be sealed by O-rings relative to the insertion space 53.

Zu einer Seite des Ventils 9, nämlich im vorderen Bereich des Einschubraums 48 schließt nach unten ein in den Anschluss 19 mündender Kanal 57 für den Heizungsvorlauf an. Seitlich quer an den Einschubraum 48 schließt linksseitig, und zwar im Bereich zwischen den Dichtsitzen der Einschubarmatur 49 ein Kanal an, der in den dazu fluchtend liegenden Anschlussstutzen 58 mündet, welcher zum Anschluss der vom Primärwärmetauscher 2 kommenden Leitung vorgesehen ist. Diese seitlichen Anschlüsse 58 linksseitig bzw. der durch den Druckstutzen 31 gebildete Anschluss rechtsseitig sind besonders vorteilhaft angeordnet, da die in Einbaueinlage von oben kommenden Leitungen zum bzw. vom Primärwärmetauscher 2 leicht anschließbar sind, da sie in Querrichtung 27 über ihre gesamte Länge federn und daher gut manipulierbar, d. h. vom Anschluss weg bzw. zum Anschluss hin bewegbar sind.To one side of the valve 9, namely in the front region of the insertion space 48 closes down an opening into the port 19 channel 57 for the heating flow. Laterally transversely to the insertion space 48 includes on the left side, in the area between the sealing seats of the insertion fitting 49, a channel which opens into the mating connecting piece 58, which is provided for connecting the line coming from the primary heat exchanger 2. These lateral connections 58 on the left side or the connection formed by the pressure port 31 on the right side are arranged particularly advantageously, since the in installation insert from above lines to or from the primary heat exchanger 2 are easy to connect, since they spring in the transverse direction 27 over its entire length and therefore well manipulable, d. H. away from the connection or to the connection are movable.

Auch der Einschubraum 48 weist bodenseitig eine Durchbrechung zu einem im Wesentlichen achsgleich verlaufenden rückseitigen Kanal auf, der in einen Anschlussstutzen 59 für den Plattenwärmetauscher 5 mündet. Dieser untere Anschlussstutzen 59 gehört zu einem Paar, dessen oberer Anschlussstutzen 60 über einen Querkanal 61 mit einen senkrecht nach unten verlaufenden Kanal 62 verbunden ist, der in den Anschluss 21 für den Brauchwasserzulauf mündet. Durch diese Kanalanordnung wird je nach Schaltstellung des Ventils 9 der Leitungsanschluss 58 entweder mit dem unteren Anschlussstutzen 59 für den Plattenwärmetauscher 5 oder aber mit dem Anschluss 19 für den Heizungsvorlauf leitungsverbunden. Auch hier bildet der Einschubraum 48 eine Anschlussbasis für nahezu alle auf dieser Seite der Pumpe zu führenden Kanäle.Also, the insertion space 48 has on the bottom side an opening to a substantially coaxially extending back channel, in a connection piece 59 for the plate heat exchanger. 5 empties. This lower connecting piece 59 belongs to a pair whose upper connecting piece 60 is connected via a transverse channel 61 with a vertically downwardly extending channel 62, which opens into the port 21 for the service water inlet. By this channel arrangement, depending on the switching position of the valve 9, the line connection 58 is conductively connected either to the lower connection piece 59 for the plate heat exchanger 5 or to the connection 19 for the heating flow. Again, the insertion space 48 forms a connection base for almost all on this side of the pump leading channels.

An dem zum Anschluss 19 senkrecht nach unten verlaufenden Kanal schließt ein parallel zur Laufradachse 28 sich nach hinten erstreckender Kanal 63 an, der zusammen mit den mit dem quer dazu verlaufenden, in den Kanalbereich 63 mündenden und sich in Richtung 27 erstreckenden Kanal 64 die Bypassleitung 13 bildet. Der Querkanal 64 mündet im unteren hinteren Bereich des Pumpengehäuses, also im Saugraum desselben, wie in Fig. 5 deutlich zu erkennen ist.A channel 63 extending parallel to the rotor axis 28 adjoins the channel 63 which extends perpendicularly downwards to the connection 19 and together with the channel 64 running transversely thereto, opening into the channel region 63 and extending in the direction 27, the bypass line 13 forms. The transverse channel 64 opens in the lower rear region of the pump housing, ie in the suction chamber thereof, as in FIG Fig. 5 is clearly visible.

In den Kanal 63 ist von hinten ein federbelastetes Ventil 14 eingesetzt, durch das der wirksame Querschnitt der Bypassleitung 13 druckabhängig ist. An dem senkrechten, zum Anschluss 21 führenden Kanal 62 ist nach vorne hin eine Aufnahme für einen weiteren Druck- Temperatursensor 45 vorgesehen. Aufnahme und Sensor sind in gleicher Weise ausgebildet wie die des rechten Armaturengehäuses 26. Dieser Druck-/ Temperatursensor 45, der von vorne eingesetzt ist, ragt in den senkrecht und rückseitig angeordneten Kanal 62, der zum Anschluss 21 für den Brauchwasserzulauf führt. Dabei bildet der Drucksensor in Verbindung mit einer im Kanal 62 ausgebildeten Obstruktion Teil des eingangs beschriebenen Durchflussmessers 6, in Verbindung mit einer entsprechenden Auswertelektronik, die im Klemmenkasten 65 angeordnet ist.In the channel 63, a spring-loaded valve 14 is inserted from behind, through which the effective cross section of the bypass line 13 is pressure-dependent. On the vertical, leading to the port 21 channel 62 is a receptacle for a further pressure-temperature sensor 45 is provided to the front. Recording and sensor are formed in the same manner as that of the right fitting housing 26. This pressure / temperature sensor 45, which is inserted from the front, projects into the vertical and rear-side channel 62, which leads to the connection 21 for the service water inlet. In this case, the pressure sensor in conjunction with an obstruction formed in the channel 62 forms part of the flow meter 6 described in the introduction, in conjunction with a corresponding evaluation electronics, which is arranged in the terminal box 65.

Zum elektrischen Anschluss der Baueinheit ist der Klemmenkasten 65 vorgesehen, der auf dem Gehäuse des Motors 30 angeordnet und somit dem Pumpengehäusebauteil 24 zugeordnet ist.For electrical connection of the assembly, the terminal box 65 is provided, which is arranged on the housing of the motor 30 and thus associated with the pump housing component 24.

Die mechanische Verbindung der Bauteile 24, 25 und 26 erfolgt zum einen über die Kanalverbindungen (siehe Fig. 3) (34, 64) sowie zum anderen über entsprechende, hier nicht im Einzelnen beschriebenen Verbindungsstege, die mittels Gewindebolzen gesichert werden. Bei den Kanalverbindungen handelt es sich um Steckverbindungen unter Eingliederung eines O-Rings, welcher die Dichtfunktion der Verbindung übernimmt sowie eines quer zur Einsteckrichtung eingeschobenen u-förmigen Bügels, welcher die mechanische Verriegelung übernimmt.The mechanical connection of the components 24, 25 and 26 takes place on the one hand via the channel connections (see Fig. 3 ) (34, 64) and on the other via corresponding, not described in detail here connecting webs, which are secured by means of threaded bolts. When the channel connections are plug-in connections under inclusion of an O-ring, which performs the sealing function of the compound as well as a transversely inserted to the insertion direction U-shaped bracket, which takes over the mechanical lock.

Die vorstehend beschriebenen Anschlüsse bzw. Anschlussstutzen sind teilweise als Steckanschlüsse, Gewindeanschlüsse oder flanschartige Stutzen ausgebildet. Die jeweiligen Bauformen sind nur beispielhaft zu verstehen und können den Anforderungen entsprechend angepasst, ausgetauscht oder modifiziert werden.The connections or connecting pieces described above are partially designed as plug-in connections, threaded connections or flange-like connection pieces. The respective designs are only to be understood as examples and can be adapted, exchanged or modified according to the requirements.

Wie insbesondere die Fig. 2 verdeutlicht, ist die vorstehend beschriebene Baueinheit extrem kompakt und liegt von den seitlichen Abmessungen her etwa in Flucht mit den rückwärtig dazu angeordneten Plattenwärmetauscher, so dass die gesamte Einheit zwischen vertikale Streben des Chassis der Kompaktheizungsanlage eingliederbar ist, wodurch die Bautiefe der gesamten Anlage verringert werden kann. Weiterhin sind alle wesentlichen Aggregate und Armaturen von vorne bzw. von dem oberhalb der Baueinheit gebildeten Freiraum zugänglich, so dass sie ohne Demontage der Baueinheit ausgetauscht und gewartet werden können. Doch selbst der Austausch der Baueinheit ist aufgrund der in einer horizontalen Ebene liegenden Anschlüssen 19 bis 22, welche die Verbindung zu den stationären wasserführenden Leitungen bilden, insbesondere bei Verwendung eines zentralen Verschlussbleches wenig arbeitsaufwendig, es sind lediglich die seitlichen Anschlussleitungen vorher zu lösen, wonach die gesamte Baueinheit nach Öffnen des Verschlussbleches nach oben abgehoben und dann nach vorn herausgezogen werden kann. Der Einbau erfolgt in umgekehrter Reihenfolge.How the particular Fig. 2 illustrates, the unit described above is extremely compact and is from the lateral dimensions approximately in alignment with the plate heat exchanger arranged rearwardly so that the entire unit between vertical struts of the chassis of the compact heating system is einliederbar, whereby the overall depth of the entire system can be reduced , Furthermore, all major units and fittings are accessible from the front or from the above the unit formed space so that they can be replaced and serviced without disassembly of the unit. But even the replacement of the assembly is due to lying in a horizontal plane terminals 19 to 22, which form the connection to the stationary water-carrying lines, especially when using a central closure plate little laborious, it is only the lateral connection lines to be solved before, after which the entire assembly can be lifted after opening the lock plate upwards and then pulled out to the front. Installation is the reverse order.

Die Ausbildung des Pumpengehäusebauteils 24, insbesondere im rückwärtigen Teil ergibt sich im Einzelnen aus den Figuren 10 und 11 sowie in eingebauten Zustand aus den Figuren 3 und 5. Wie diese Darstellungen verdeutlichen, ist das eigentliche Pumpengehäuse rückwärtig abgestuft ausgebildet und erstreckt sich bis unter dem Plattenwärmetauscher 5, wo von rechts (von vorne gesehen) der Saugkanal 34 sowie von links der Querkanal 64 für die Bypassleitung 13 anschließt. Dieser den Wärmetauscher 5 an seiner Unterseite überragende Teil 75 des Pumpengehäuses ist dem eigentlichen Saugraum vorgelagert und bildet Teil einer Luftabscheideeinrichtung, deren eigentlicher Abscheider 32 nahe der Oberseite anschließt und aus einer Luftabscheidekammer 70 sowie einem diese nach oben abschließenden Entlüftungsventil 71 besteht.The design of the pump housing component 24, in particular in the rear part results in detail from the Figures 10 and 11 as well as in the installed state from the Figures 3 and 5 , As these representations illustrate, the actual pump housing is stepped back and extends below the plate heat exchanger 5, where from the right (seen from the front) of the suction channel 34 and from the left of the transverse channel 64 connects to the bypass line 13. This the heat exchanger 5 on its underside superior part 75 of the pump housing is upstream of the actual suction chamber and forms part of an air separation, the actual separator 32 connects near the top and consists of a Luftabscheidekammer 70 and this up closing vent valve 71.

Der durch eine Platte 72 vom Druckraum getrennte Saugraum der Pumpe mündet in den Saugmund 33, der in seinem oberen Bereich etwa über 190° von einem sich von der Platte 72 nach hinten bis zur Gehäusewand erstreckenden oberen Leitkörper 73 umgeben ist. Nach unten mit Abstand ist der Saugmund von einem unteren Leitkörper 74 umgeben, der seitlich und mit Abstand die unteren Enden des oberen Leitkörpers 73 übergreift und, ebenfalls bis zur rückseitigen Gehäusewand des Pumpengehäusebauteils 24 ragt, und zwar, wie insbesondere Fig. 10 verdeutlicht, bis in den unter dem Plattenwärmertauscher 5 liegenden abgestuften Gehäuseabschnitt 75. Die Anordnung der Leitkörper 73 und 74 ist derart, dass die vom Saugkanal 34 eintretende Strömung den in Fig. 11 dargestellten und mit Pfeilen gekennzeichneten Weg nehmen muss, nämlich den unteren Leitkörper 74 seitlich unter einem Richtungswechsel von etwa 180° umströmen um dann unter weiteren Richtungswechsel von mehr als 90° in den Saugmund 33 einzutreten. Im Bereich dieses abgestuften Gehäuseabschnitts 75 erfolgt zum einen durch Querschnittsvergrößerung eine Strömungsverlangsamung, was einen Luftabscheidevorgang begünstigt, zum anderen eine Umlenkung um etwa 180° mit Freiraum nach oben, was wiederum den Austritt der Luft nach oben aus der Strömung begünstigt. Durch diese Maßnahmen wird erreicht, dass eine nahezu luftblasenfreie Strömung in den Saugmund eintritt und die mitgeführte Luft im Saugraum nach oben aufsteigt, wo sie in der Luftabscheidekammer 70 gesammelt und über das Entlüftungsventil 71 in an sich bekannter Weise in die Umgebung ausgeschieden wird.The suction chamber of the pump, which is separated from the pressure chamber by a plate 72, opens into the suction mouth 33, which in its upper region is surrounded by an upper guide body 73 extending from the plate 72 backwards to the housing wall, approximately over 190 °. Downwardly at a distance, the suction mouth is surrounded by a lower guide body 74 which engages over the lower ends of the upper guide body 73 laterally and at a distance and also protrudes up to the rear housing wall of the pump housing component 24, specifically Fig. 10 The arrangement of the guide body 73 and 74 is such that the flow entering from the suction channel 34 to the in. Under the plate heat exchanger 5 lying below the plate heat exchanger 5 Fig. 11 must be shown and marked with arrows way, namely the lower guide body 74 laterally below a direction change of about 180 ° flow around then to enter under further direction change of more than 90 ° in the suction port 33. In the area of this stepped housing section 75, a flow slowdown, which favors an air separation process, takes place on the one hand by a cross-sectional enlargement, on the other hand a deflection of about 180 ° with free space upwards, which in turn favors the upward escape of the flow. By these measures it is achieved that a virtually bubble-free flow enters the suction and the entrained air rises in the suction chamber upwards, where it is collected in the Luftabscheidekammer 70 and excreted via the vent valve 71 in a conventional manner in the environment.

Wie in Fig. 10 erkennbar ist, mündet der Bypasskanal 64 ebenfalls in der Unterseite des Saugraumes, und zwar unter dem unteren Leitkörper 74.As in Fig. 10 can be seen, the bypass channel 64 also opens in the bottom of the suction chamber, under the lower guide body 74th

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1 -1 -
Brennerburner
2 -2 -
PrimärwärmetauscherPrimary heat exchanger
3 -3 -
Wärmetauscher, HeizkörperHeat exchanger, radiator
4 -4 -
Pumpepump
5 -5 -
PlattenwärmetauscherPlate heat exchanger
6 -6 -
DurchflussmesserFlowmeter
7 -7 -
Druck- und TemperatursensorPressure and temperature sensor
8 -8th -
Stellmotorservomotor
9 -9 -
3/2-Wegeventil3/2-way valve
10 -10 -
Ausgleichsbehältersurge tank
11 -11 -
Wärmespeicherheat storage
12 -12 -
Thermostatventilthermostatic valve
13 -13 -
Bypassleitungbypass line
14 -14 -
VentilValve
15 -15 -
Sicherheitsventilsafety valve
16 -16 -
Absperrventilshut-off valve
17 -17 -
Absperrventilshut-off valve
18 -18 -
Leitungmanagement
19 -19 -
Anschluss für HeizungsvorlaufConnection for heating flow
20 -20 -
Anschluss für HeizungsrücklaufConnection for heating return
21 -21 -
Anschluss für BrauchwasserzulaufConnection for domestic water supply
22 -22 -
Anschluss für warmes BrauchwasserConnection for hot service water
23 -23 -
Baueinheitunit
24 -24 -
PumpengehäusebauteilPump housing component
25 -25 -
Armaturengehäuse linksValve body left
26 -26 -
Armaturengehäuse rechtsValve body right
27 -27 -
Querrichtungtransversely
28 -28 -
Laufradachsewheel axle
29 -29 -
Einschubraum des PumpengehäusesInsertion space of the pump housing
30 -30 -
Motorengine
31 -31 -
Druckstutzenpressure port
32 -32 -
Luftabscheiderair separator
33 -33 -
Saugmundsaugmund
34 -34 -
Saugkanalsuction
35 -35 -
Kanalchannel
36 -36 -
Einschubrauminsertion space
37 -37 -
Anschluss für WärmespeicherConnection for heat storage
38 -38 -
Anschluss für WärmespeicherConnection for heat storage
39 -39 -
Trennwandpartition wall
40 -40 -
Leitung (Heizungsrücklauf)Line (heating return)
41 -41 -
Anschlussstutzenspigot
42 -42 -
Anschlussstutzenspigot
43 -43 -
Kanalchannel
44 -44 -
Aufnahmeadmission
45 -45 -
Druck-/TemperatursensorPressure / temperature sensor
46 -46 -
Schmutzabscheiderdirt separator
47 -47 -
Deckelcover
48 -48 -
Einschubrauminsertion space
49 -49 -
Einschubarmaturslide valve
50 -50 -
StabRod
51 -51 -
Hebellever
52 -52 -
Einbauarmaturinstallation fitting
53 -53 -
Einschubrauminsertion space
54 -54 -
Spindelspindle
56 -56 -
Manschettecuff
57 -57 -
Kanalchannel
58 -58 -
Anschlussstutzenspigot
59 -59 -
Anschlussstutzen für Wärmetauscher (unten)Connecting piece for heat exchanger (below)
60 -60 -
Anschlussstutzen für Wärmetauscher (oben)Connecting piece for heat exchanger (top)
61 -61 -
QuerkanalQuerkanal
62 -62 -
Kanalchannel
63 -63 -
Kanal für BypassleitungChannel for bypass line
64 -64 -
Querkanal für BypassleitungCross channel for bypass line
65 -65 -
Klemmenkastenterminal box
66 -66 -
Anschluss für AusgleichsgefäßConnection for expansion tank
70 -70 -
Luftabscheidekammerair separation chamber
71 -71 -
Entlüftungsventilvent valve
72 -72 -
Platteplate
73 -73 -
oberer Leitkörperupper guide body
74 -74 -
unterer Leitkörperlower guide body
75 -75 -
abgestufter Gehäuseabschnittstepped housing section

Claims (12)

  1. A construction unit for a compact heating installation, which comprises a pump housing (24) and an air separation device (32, 70, 71, 74, 75), wherein a plate heat exchanger (5) is connected onto the construction unit on the rear side in the installed position and the pump housing (24) comprises at least a part of the air separation device (32, 70, 71, 74, 75), characterised in that the pump housing (24) in the installed position projects beyond the plate heat exchanger (5) at least at one side, in a manner such that the space above, below or next to the plate heat exchanger is used for the pump housing.
  2. A construction unit according to claim 1, characterised in that the pump housing (24) extends up to below the plate heat exchanger (5).
  3. A construction unit according to one of the preceding claims, characterised in that the pump housing (24), in the region of its extension, is designed in the manner of a union.
  4. A construction unit according to one of the preceding claims, characterised in that the pump housing (24) is stepped on the suction side, wherein the stepped part (25) is arranged below the plate heat exchanger (5).
  5. A construction unit according to one of the preceding claims, characterised in that the stepped part (75) of the pump housing (24) which is arranged below the plate heat exchanger forms part of the air separation device (32, 70, 71, 73, 74, 75).
  6. A construction unit according to one of the preceding claims, characterised in that a bleed valve (71) is provided, which is arranged in an air separation chamber (70) connecting to the pump housing (24), wherein the air separation chamber (70) connects on the non-stepped part of the pump housing (24).
  7. A construction unit according to one of the preceding claims, characterised in that at least one guide body (73) is provided within the pump housing (24) and preferably surrounds the lower part of the suction port (33) of the pump and projects up to into the stepped part (75) of the pump housing which is arranged below the plate heat exchanger (5).
  8. A construction unit according to one of the preceding claims, characterised in that a guide body (74) is arranged within the pump housing (24) and surrounds the upper part of the suction port (33) of the pump.
  9. A construction unit according to one of the preceding claims, characterised in that the upper guide body (74) towards the bottom ends within the space surrounded by the lower guide body (73).
  10. A construction unit according to one of the preceding claims, characterised in that the suction-side conduit (34) runs out in the part (75) of the pump housing (24) which extends below the plate heat exchanger (5).
  11. A construction unit according to one of the preceding claims, characterised in that a bypass conduit (64) runs out in the part (75) of the pump housing (24) which extends below the plate heat exchanger (5).
  12. A construction unit according to one of the preceding claims, characterised in that the bypass conduit (64) and the suction conduit (34) are led parallel to the plate heat exchanger (5) and run out on sides of the pump housing (24) which are away from one another.
EP03025083A 2003-11-03 2003-11-03 Assembly for a compact heating installation Expired - Lifetime EP1528329B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03025083A EP1528329B1 (en) 2003-11-03 2003-11-03 Assembly for a compact heating installation
AT03025083T ATE504787T1 (en) 2003-11-03 2003-11-03 UNIT FOR A COMPACT HEATING SYSTEM
DE50313603T DE50313603D1 (en) 2003-11-03 2003-11-03 Assembly unit for a compact heating system
CNB2004100883735A CN100513923C (en) 2003-11-03 2004-11-03 Assembly for a compact heating installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03025083A EP1528329B1 (en) 2003-11-03 2003-11-03 Assembly for a compact heating installation

Publications (2)

Publication Number Publication Date
EP1528329A1 EP1528329A1 (en) 2005-05-04
EP1528329B1 true EP1528329B1 (en) 2011-04-06

Family

ID=34400511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025083A Expired - Lifetime EP1528329B1 (en) 2003-11-03 2003-11-03 Assembly for a compact heating installation

Country Status (4)

Country Link
EP (1) EP1528329B1 (en)
CN (1) CN100513923C (en)
AT (1) ATE504787T1 (en)
DE (1) DE50313603D1 (en)

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DE202014002654U1 (en) 2014-03-27 2015-06-30 Stiebel Eltron Gmbh & Co. Kg Home automation device with a degree for an energy converter
DE202014002655U1 (en) 2014-03-27 2015-06-30 Stiebel Eltron Gmbh & Co. Kg Heat energy system with a heat generator and a container
EP3012553B1 (en) 2014-10-21 2018-01-17 Grundfos Holding A/S Construction unit for a heating system

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EP3012552B1 (en) * 2014-10-21 2018-01-31 Grundfos Holding A/S Component for a compact heating system
JP6528903B2 (en) * 2016-04-11 2019-06-12 三菱電機株式会社 Heat storage device
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DE202014002655U1 (en) 2014-03-27 2015-06-30 Stiebel Eltron Gmbh & Co. Kg Heat energy system with a heat generator and a container
EP3012553B1 (en) 2014-10-21 2018-01-17 Grundfos Holding A/S Construction unit for a heating system

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ATE504787T1 (en) 2011-04-15
CN100513923C (en) 2009-07-15
CN1619235A (en) 2005-05-25
DE50313603D1 (en) 2011-05-19
EP1528329A1 (en) 2005-05-04

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