EP1884720B1 - Ensemble pour installation de chauffage compact - Google Patents

Ensemble pour installation de chauffage compact Download PDF

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Publication number
EP1884720B1
EP1884720B1 EP06015791.4A EP06015791A EP1884720B1 EP 1884720 B1 EP1884720 B1 EP 1884720B1 EP 06015791 A EP06015791 A EP 06015791A EP 1884720 B1 EP1884720 B1 EP 1884720B1
Authority
EP
European Patent Office
Prior art keywords
heating
heat exchanger
construction unit
unit according
slide
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.)
Not-in-force
Application number
EP06015791.4A
Other languages
German (de)
English (en)
Other versions
EP1884720A1 (fr
Inventor
Olav 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 Management AS
Original Assignee
Grundfos Management 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 Management AS filed Critical Grundfos Management AS
Priority to EP06015791.4A priority Critical patent/EP1884720B1/fr
Priority to PL06015791T priority patent/PL1884720T3/pl
Publication of EP1884720A1 publication Critical patent/EP1884720A1/fr
Application granted granted Critical
Publication of EP1884720B1 publication Critical patent/EP1884720B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 heating system with two heating circuits according to the features indicated in the preamble of claim 1.
  • Such units are state of the art and are typically used in so-called gas heating, which are often built as compact wall units.
  • These compact devices have a primary heat exchanger in which circulated water is heated as a heat transfer medium, which is supplied either to a space heating heating circuit or a heat exchanger, typically a plate heat exchanger, via which the domestic water heating takes place.
  • the assembly typically includes a built-up of several injection molded plastic fittings and pump housing, which is formed on the rear side for connection of the plate heat exchanger.
  • the assembly also includes all other electrical, mechanical and / or hydraulic components, as far as they can be usefully merged into the unit. These are typically filters, dirt / air separators, switching valves, throttle valves, temperature and pressure sensors, and the like.
  • EP 1 528 330 A1 Such a unit in which connect three housing parts under inclusion of the pump unit to each other and are connected at the back by the heat exchanger, is off EP 1 528 330 A1 known.
  • This unit is highly integrated and consists essentially of a central pump housing part and two laterally adjoining valve body parts.
  • the heating of the service water takes place as soon as a service water flow within the unit is detected. Then, the switching of a directional control valve takes place in such a way that the heated water coming from the primary heat exchanger is no longer directed into the heating circuit for space heating but into the heating circuit for domestic water heating, namely into the plate heat exchanger. At the same time, the burner is ignited so that heating of the heat carrier flowing through takes place in the primary heat exchanger.
  • the invention has the object, a generic unit for a heating system in such a way that a better temperature control of the process water is made possible.
  • the assembly according to the invention for a heating system with two heating circuits, one for the space heating and one for the heating of process water, has a fitting and pump housing, which is designed for connection of the secondary heat exchanger, in which the heating of the service water takes place.
  • means for controlling the temperature of the process water are provided within the assembly, namely within the fitting and pump housing, which operate independently of the outside of the unit located heating system parts.
  • the basic idea of the present invention is thus to control the temperature control not only as in the prior art by the gas supply of the burner, which always takes place outside the unit, but within the unit, namely to provide means for controlling the temperature of the service water within the fitting and pump housing So, which are within the unit and thus independent of units outside the unit are independent and thus mounted by the manufacturer of the unit and can be adjusted.
  • a controllable throttle point is provided in the service water line within the unit, with which the hot water flow can be controlled.
  • the possibility of controlling the amount of hot water, the temperature of the escaping hot water can be controlled, too without interfering with the burner control. It may therefore be possible to dispense with a burner control, at least on a sensitive burner control, as this can be done via the flow control, possibly also in addition to the burner control.
  • a throttle point is provided within the assembly, the flow cross-section is adjustable.
  • a temperature control is provided instead of a pure control.
  • This can be done in a further development of the invention in that within the housing in the secondary heat exchanger downstream DHW line temperature sensor is arranged that is provided within the unit an electronic control, which is fed to the signal of the temperature sensor and in turn emits a control signal , which is responsible for the control of the flow cross section of the throttle point. In this way, a closed loop for the temperature control of the process water can be provided within the unit.
  • the controllable throttle point can in principle be located anywhere within the service water line in the unit, but must be arranged in the flow direction in front of the temperature sensor. It is particularly expedient if the controllable throttle point lies in the flow direction in front of the secondary heat exchanger.
  • the fittings and pump housing from at least one fitting housing part and a pump housing part is constructed of plastic injection molding, then it is structurally particularly favorable to arrange the controllable throttle point in a fitting housing part, which connects to the secondary heat exchanger.
  • a variety of design options is given. Particularly advantageous is a construction according to the invention, in which the throttle point is designed in the manner of a slide valve and the slide is moved by means of an externally arranged on the housing electric motor in the axial direction, so that depending on the position of the slide, the flow cross section is larger or smaller. It is expedient to design the arrangement so that the flow cross-section can not be completely closed, but always a minimum flow cross-section remains to ensure even in the case of a defect still sufficient flow of the plate heat exchanger.
  • the design in the manner of a slide valve has the advantage that the flow cross-section can be controlled almost force-free, that can be completely dispensed with sealant in the flow cross section and that the relevant components are inexpensive to produce or can be integrated into the housing.
  • the slide valve-like training also allows a further development to the effect that on the side facing away from the engine of the slide, a filling valve for the heating system can be arranged, which is controllable indirectly or directly by the slide at least in the opening direction. It can therefore, if the control of the flow cross-section is not needed, the slider can be used to control the filling valve, whereby a separate drive for the filling valve can be omitted. Since there is already a conduit for the service water within the housing, it only requires a short overflow, which makes it possible to fill with the help of the incorporated therein filling valve and a further provided check valve, the heating circuit, if this should be necessary.
  • the filling valve is designed so that it is spring-loaded in the closing direction, so that it can be closed in the normal position and can only be opened when actuated by the slide.
  • a filling valve is advantageously designed as a seat valve, but may also be designed as a slide valve.
  • a line connection between a service water leading line and a heating water leading line can be provided without much effort. It is only within the unit in addition to the channel connection to create a space for the filling valve and another space for a check valve, which prevents backflow of heating water to the hot water.
  • the check valve downstream means are provided which effectively prevent ingress of heating water in the hot water circuit. It should be borne in mind that the simple safety of a check valve, which, with a few exceptions, is constantly closed and thus not moved, may not be sufficient to provide the security against the ingress of heating water into the hot water circuit. It is therefore provided according to an embodiment of the invention, a transfer port, which connects to the space between the filling valve and the check valve and connects it to the environment or a drain line. This overflow channel thus ensures that even in the case of a defect of the Check valve itself can not build up pressure on the water heater side filling valve, but this is then possibly derived, until the pressure within the heating circuit has dropped accordingly.
  • the slide of the throttle point can be moved into a cylinder which intersects the channel of the corresponding housing part which leads transversely thereto and leads to the heat exchanger.
  • Such a design is advantageous tool and also particularly advantageous in terms of the arrangement, since both the slider and the end arranged thereon and this traversing motor can be arranged at an easily accessible point of the unit, so that they are easily accessible in the installation position and repair - Or maintenance case without removing housing parts are removable and installable.
  • the arrangement of the engine is advantageously carried out so that it is located above the heat exchanger for heating the service water, ie where regularly a free space is formed within the system.
  • Fig. 1 shown heating system has a heating circuit in which is heated in a primary heat exchanger 1 by means of a burner 2 circulated water as a heat transfer medium.
  • the water is supplied by means of a circulation pump 3 through the primary heat exchanger 1 and subsequently to a 3/3-way valve, from which it is selectively fed via a check valve overflow 5 or a heat exchanger 6 in the form of a plate heat exchanger or radiators 7 a space heating.
  • a check valve overflow 5 or a heat exchanger 6 in the form of a plate heat exchanger or radiators 7 a space heating.
  • This switching position is used for rapid heating of the water circulated there.
  • the heated water in the primary heat exchanger 1 is supplied to the plate heat exchanger 6, in which it heated hot water in countercurrent, which comes from a service water pipe 8 and heated by a hot water pipe 9 leaves the heat exchanger 6.
  • the guided through the heat exchanger 6 heating water passes through a return line 10 back to the circulation pump 3 and thus to the primary heat exchanger 1.
  • the heated water in the primary heat exchanger 1 is supplied to the radiators 7 of the space heater and then via a return line 11 again Circulation pump 3 and back to the primary heat exchanger. 1
  • Fig. 1 how out Fig. 1 it can be seen, the components 3 to 6 and 10 and further, not shown in detail in the figure components, are arranged in a structural unit 12 which in Fig. 1 is shown by the 12 numbered rectangular frame.
  • Such a unit 12, as is typically provided for so-called wall-mounted gas heaters is in Fig. 2 shown.
  • the assembly 12 has a central pump housing part 13, which receives the impeller of the circulation pump 3 and the suction side has an air separator, the quick exhaust fan 14 in Fig. 2 is recognizable.
  • the pump housing part 13 is located at a distance in front of the plate heat exchanger 6 and has a mounting position upwardly directed pressure port 15, which is provided for line connection to the primary heat exchanger 1.
  • the pump housing part 13 carries the front side of the electric motor 16 of the pump.
  • the terminal box 17 of the motor 16 is disposed on the electric motor 16 and receives all the control electronics.
  • Right and left (according to Fig. 2 ) close to the pump housing part 13 so-called fitting housing parts 18 and 19, each consisting of two housing components 20 and 21 or 22 and 23. These are plastic injection molded parts, which each connect to a connection pair of the plate heat exchanger 6.
  • connection 27 is provided for the heating flow and the connection 30 for the heating return.
  • the hot water is fed via line 8 at the terminal 29 in the unit 12, where it passes from below into the housing member 23 to the in Fig. 2 bottom connection of the right pair of the plate heat exchanger 6, flows through this and passes through the lower connection of the left pair of terminals in the Housing component 21 and the hot water supply 28 in the corresponding stationary hot water pipe of the building.
  • the heated water coming from the primary heat exchanger 1 is introduced via a connection 31 at the top into the housing component 20, which comprises the 3/3-way valve 4 and, for the purpose of domestic hot water heating, flows into the upper left connection of the plate heat exchanger 6 the plate heat exchanger in countercurrent to the hot water and exits at the upper port of the right pair of ports back into the housing member 22 which is line connected to the suction port of the pump 3.
  • a throttle point 32 which is variable in its flow cross-section, is provided in the housing component 23.
  • the housing component 23 has an installation position (in accordance with Fig. 2 ) accessible to the front, closed by a lid 33 cylindrical space 34, followed by the bottom of the terminal 29 for supplying the still cold service water.
  • a channel 35 connects, which ends in the lower connection of the right pair of terminals of the plate heat exchanger 6. In the area between the bottom of the space 34 and the channel 35, this cuts a cylindrical pipe section 36, at the upper end of a terminal 26 is provided for receiving a drive unit 40.
  • a slide 37 is mounted movable in the axial direction, which has a the interior of the pipe section 36 in sections and in cross section completely filling cylinder 38 at its end.
  • the slider 37 is rod-shaped, sealed in the upper part of the pipe section 36 via a seal 39 and the drive unit 40 located there, stored, which has an electric motor for moving the cylinder 38 within the pipe section 36.
  • the temperature control itself is arranged in the terminal box 17 of the motor 16 and moreover also has a temperature sensor 49 provided in the housing component 21, which detects the temperature of the heated service water emerging from the plate heat exchanger 6.
  • the pipe section 36 is extended downward beyond the channel 35 and formed there as a guide for a valve body 41 of a filling valve 42.
  • the filling valve 42 is designed as a slide valve.
  • the slider and valve body 41 is subjected to a force in the closing direction by means of a coil spring 43 fixed in the housing at the end. The based on FIGS. 4 and 6 shown position of the valve body 41 thus shows the closed valve position.
  • the slide 37 To open the filling valve 42 to open, the slide 37 must be moved by means of the electric motor 38 beyond its maximum throttle position, until the free end face of the cylinder 38 comes to rest on the opposite end face of the valve body 41. Then, when the slider 37 is further moved against the force of the coil spring 43 and the valve body 41 is pushed down, created around the valve body around a channel connection between the pending in the room 34 service water and a transverse channel 44 to which a check valve 45 connects and the in a port 46 opens, which is provided for connection to the heating circuit of the primary heat exchanger 1.
  • the transverse channel 44 with which the spring 43 and the lower Part of the valve body 41 receiving space conductively connected This space is opened by a central recess 47 in the spring 43 supporting the lid 48, so that incoming water is discharged to the outside into the environment and thus can not get into the service water pipe.
  • a drain line leading may possibly be attached to a drain line leading.

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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)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Claims (11)

  1. Ensemble (12) pour une installation de chauffage ayant deux circuits de chauffe, un pour le chauffage de la chambre et un pour chauffer de l'eau sanitaire, avec un carter de robinetterie et de pompe (13, 18, 19) qui est conçu avec au moins une partie de carter de robinetterie (18, 19) et une partie de carter de pompe (13) en matière plastique injectée, le carter de robinetterie et de pompe (18, 19) étant formé pour le raccordement d'un échangeur secondaire de chaleur (6), caractérisé en ce que, à l'intérieur du carter de robinetterie et de pompe (13, 18, 19), des moyens de commande de température (32, 40, 49) de l'eau sanitaire sont prévus qui comprennent, dans le conduit d'eau sanitaire, un point d'étranglement (32) apte à être commandé, et en ce que, à l'intérieur du carter de robinetterie et de pompe (13, 18, 19), dans le conduit d'eau sanitaire en aval de l'échangeur secondaire de chaleur (6), un capteur de température (49) est disposé dont le signal est acheminé vers une régulation électronique (17) qui commande la section transversale d'écoulement du point d'étranglement (32).
  2. Ensemble selon la revendication 1, caractérisé en ce que le point d'étranglement (32) apte à être commandé est disposé dans une partie de carter de robinetterie (19) à laquelle l'échangeur secondaire de chaleur (6) est adjacent.
  3. Ensemble selon l'une des revendications précédentes, caractérisé en ce que le point d'étranglement (32) est formé à la façon d'une vanne à tiroir et en ce que le tiroir (37) est déplaçable en direction axiale à l'aide d'un moteur électrique (40) disposé à l'extérieur sur le carter.
  4. Ensemble selon l'une des revendications précédentes, caractérisé en ce que, sur le côté opposé à l'entraînement (40) du tiroir (37), une vanne de remplissage (42) pour le système de chauffage est disposée, laquelle vanne est actionnable, au moins en direction d'ouverture, indirectement ou directement par le tiroir (37).
  5. Ensemble selon l'une des revendications précédentes, caractérisé en ce que le corps de vanne (41) de la vanne de remplissage (42) est précontraint, en direction de fermeture, par la force d'un ressort.
  6. Ensemble selon l'une des revendications précédentes, caractérisé en ce que, lors d'un déplacement du tiroir (37) au-delà du point d'étranglement le plus étroit, le corps de vanne (41) de la vanne de remplissage (42) est asservi en ouverture.
  7. Ensemble selon l'une des revendications précédentes, caractérisé en ce que, en position d'ouverture de la vanne de remplissage (42), une connexion de conduits est formée entre un conduit (34) contenant de l'eau sanitaire et un conduit (46) contenant de l'eau de chauffage, un clapet anti-retour (45) étant prévu à l'intérieur de la partie de carter de robinetterie (19), qui empêche un flux de retour d'eau de chauffage vers l'eau sanitaire.
  8. Ensemble selon l'une des revendications précédentes, caractérisé en ce que des moyens (47) sont prévus en aval du clapet anti-retour (45) qui empêchent la pénétration d'eau de chauffage dans le circuit d'eau sanitaire.
  9. Ensemble l'une des revendications précédentes, caractérisé en ce que, en position de fermeture de la vanne de remplissage (42), un canal d'évacuation est prévu qui relie l'espace (44) derrière le clapet anti-retour (45) à l'environnement ou à un dispositif d'écoulement.
  10. Ensemble selon l'une des revendications précédentes, caractérisé en ce que le tiroir (37) du point d'étranglement (32) est déplaçable dans un cylindre (36) qui coupe le canal (5) qui y débouche et conduit vers l'échangeur de chaleur (6).
  11. Ensemble selon l'une des revendications précédentes, caractérisé en ce que le moteur (40) commandant le tiroir (37) est disposé au-dessus de l'échangeur de chaleur (6) pour chauffer l'eau sanitaire.
EP06015791.4A 2006-07-28 2006-07-28 Ensemble pour installation de chauffage compact Not-in-force EP1884720B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06015791.4A EP1884720B1 (fr) 2006-07-28 2006-07-28 Ensemble pour installation de chauffage compact
PL06015791T PL1884720T3 (pl) 2006-07-28 2006-07-28 Jednostka konstrukcyjna dla kompaktowej instalacji grzewczej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06015791.4A EP1884720B1 (fr) 2006-07-28 2006-07-28 Ensemble pour installation de chauffage compact

Publications (2)

Publication Number Publication Date
EP1884720A1 EP1884720A1 (fr) 2008-02-06
EP1884720B1 true EP1884720B1 (fr) 2016-01-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06015791.4A Not-in-force EP1884720B1 (fr) 2006-07-28 2006-07-28 Ensemble pour installation de chauffage compact

Country Status (2)

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EP (1) EP1884720B1 (fr)
PL (1) PL1884720T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042673A (zh) * 2015-07-02 2015-11-11 赖海荣 一种空间加热器
CN110701787A (zh) * 2019-10-31 2020-01-17 广州迪森家居环境技术有限公司 一种燃气壁挂炉及其快速热水组件

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093517B1 (fr) * 2008-02-22 2014-01-15 Grundfos Management A/S Composant pour installation de chauffage compacte
EP2093515B1 (fr) * 2008-02-22 2011-08-17 Grundfos Management A/S Composant partiel pour une installation de chauffage compacte
EP2093516B1 (fr) * 2008-02-22 2011-04-27 Grundfos Management A/S Composant pour installation de chauffage compacte
EP2397777B1 (fr) * 2010-06-19 2016-08-03 Grundfos Management A/S Unité de boîtier pour une installation de chauffage
KR101639188B1 (ko) * 2014-11-19 2016-07-13 주식회사 경동나비엔 수배관 관로 일체형 체크밸브를 구비한 보일러
CN105180256B (zh) * 2015-08-21 2018-05-15 张青林 油热式采暖热水燃气壁挂炉
KR101749062B1 (ko) * 2015-12-07 2017-06-20 주식회사 경동나비엔 삼방밸브
EP3444537B1 (fr) * 2016-04-11 2021-03-03 Mitsubishi Electric Corporation Dispositif de stockage de chaleur
DE102021208121A1 (de) * 2021-07-28 2023-02-02 Robert Bosch Gesellschaft mit beschränkter Haftung Heizgerät mit einer Bypassleitung sowie Einrichtung für ein Heizgerät
WO2024105026A1 (fr) * 2022-11-14 2024-05-23 Grundfos Holding A/S Procédé et système de commande d'un écoulement de fluide dans une boucle de mélange

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AT398857B (de) * 1991-10-31 1995-02-27 Vaillant Gmbh Verfahren zur steuerung einer heizeinrichtung und heizeinrichtung zur durchführung des verfahrens
DE19632604A1 (de) * 1996-08-13 1998-02-19 Wilo Gmbh Befülleinrichtung für Hydraulikbaugruppe
DE19802362C2 (de) * 1998-01-22 2000-08-03 Wolf Gmbh Verfahren und Einrichtung zur Reduzierung der Wartezeit für das Zapfen von warmem Brauchwasser
FR2813950B1 (fr) * 2000-09-14 2002-11-15 Chaffoteaux Et Maury Vanne distributrice hydraulique pour systeme de production d'eau chaude de chauffage et d'eau chaude sanitaire
DE50309957D1 (de) * 2003-11-03 2008-07-17 Grundfos As Baueinheit für eine Kompaktheizungsanlage
ITPC20050016A1 (it) * 2005-04-04 2006-10-05 Hermann S R L Caldaia con dispositivi per l'ottimizzazione della fornitura di acqua calda sanitaria e relativo metodo

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042673A (zh) * 2015-07-02 2015-11-11 赖海荣 一种空间加热器
CN110701787A (zh) * 2019-10-31 2020-01-17 广州迪森家居环境技术有限公司 一种燃气壁挂炉及其快速热水组件

Also Published As

Publication number Publication date
PL1884720T3 (pl) 2016-08-31
EP1884720A1 (fr) 2008-02-06

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