EP1740887A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur

Info

Publication number
EP1740887A1
EP1740887A1 EP05731238A EP05731238A EP1740887A1 EP 1740887 A1 EP1740887 A1 EP 1740887A1 EP 05731238 A EP05731238 A EP 05731238A EP 05731238 A EP05731238 A EP 05731238A EP 1740887 A1 EP1740887 A1 EP 1740887A1
Authority
EP
European Patent Office
Prior art keywords
valve
heat exchanger
housing
connection
exchanger 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.)
Withdrawn
Application number
EP05731238A
Other languages
German (de)
English (en)
Inventor
Atli Benonysson
Herman Boysen
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.)
Danfoss AS
Original Assignee
Danfoss 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34964725&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1740887(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Danfoss AS filed Critical Danfoss AS
Publication of EP1740887A1 publication Critical patent/EP1740887A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F24D3/087—Tap water heat exchangers specially adapted therefore
    • 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
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water

Definitions

  • the invention relates to a heat exchanger having a housing in which a primary side and a secondary side which is in heat-transferring connection with the primary side are arranged, the primary side having a primary flow path arranged between an inlet connection and an outlet connection, and a valve for controlling a fluid flow is provided through the primary flow path.
  • Such a heat exchanger is known for example from DE 197 02 897 C2.
  • Heat exchangers of this type are preferably used in connection with district heating systems.
  • the hot water provided by the district heating system flows through the primary side of the heat exchanger.
  • the secondary side of the heat exchanger is equipped with a hot water connection and a hot water supply.
  • the valve connected to the primary side When domestic water is drawn off, the valve connected to the primary side also opens, so that a stream of hot water can flow through the primary side.
  • heat is then transferred from the primary side to the secondary side in order to heat the domestic water.
  • the valve connected to the primary side is also used to regulate the temperature of the domestic water on the secondary side. If there is a large demand for process water on the secondary side, a corresponding amount of heat and, accordingly, a large volume of heating fluid must be supplied on the primary side. Similar considerations also apply when the heat exchanger is not used to heat domestic water, but rather to heat heating water in a heating circuit in a building.
  • the invention has for its object to make a heat exchanger system compact. 5 This object is achieved in a heat exchanger of the type mentioned in that the valve is designed as a built-in valve and is arranged in the housing with at least part of a valve housing.
  • valve which was previously arranged as a separate component in front of the heat exchanger, is shifted into the heat exchanger.
  • This enables a compact exterior to be achieved.
  • the construction of a heating or service water heating system containing a heat exchanger is also simplified. At least one piping between the valve and the housing of the heat exchanger is omitted. This not only keeps the heat exchanger compact. It is also designed to save material and is easy to install in industry.
  • the valve preferably has a valve element which interacts with a valve seat and can be flowed through through the valve seat.
  • the flow of the valve element through the valve seat has the advantage that the tendency of the valve element to vibrate is significantly less than in the reverse direction of flow. If the valve is arranged in the housing of the heat exchanger, a larger resonance body is available here. When the valve element flows through the valve seat, the larger resonance body no longer plays a role because the vibrations are smaller or can even be avoided entirely. Due to the larger mass in the area, noise is even reduced.
  • the valve is preferably arranged in the region of the inlet connection of the primary flow path, an actuating device being arranged on the side of the housing opposite the inlet connection.
  • the valve is therefore flowed from one side and actuated from the opposite side.
  • valve is arranged in the region of the outlet connection and the valve element has a closing spring which counteracts an actuating device.
  • the actuating device is arranged on the side of the housing opposite the outlet connection.
  • the cable routing away from the outlet connection is not obstructed or disturbed by the actuating device.
  • the valve is preferably arranged in a bore which forms an extension of the inlet or outlet connection. This facilitates manufacture. In any case, a hole or a corresponding opening must be provided which forms the inlet or outlet connection. From a manufacturing point of view, it is relatively simple to continue such a bore, possibly with a changed diameter, in order to also create a receiving space for the valve.
  • the valve is preferably connected to a connecting sleeve, the connecting sleeve and the valve being inserted into the housing from opposite sides.
  • the connecting sleeve then forms the possibility of connecting an inlet line or an outlet line. Such a connection is not hindered by the valve. Since the valve and the connecting sleeve are connected to each other, they secure each other in the housing. This simplifies the attachment of the connecting sleeve and valve to the housing of the heat exchanger.
  • connection can also be formed inside the housing of the heat exchanger, namely by holding the valve housing and turning the connecting sleeve (or vice versa).
  • a screw connection can absorb sufficient tensile forces so that there is no pressure limit inside the heat exchanger due to the fastening of the valve and the connecting sleeve on the
  • the connecting sleeve and / or the valve housing are preferably glued or soldered to the housing. Soldering is often preferred. This measure is useful for sealing the valve or the connecting sleeve. For secure attachment of the two elements in the housing gluing or soldering is no longer necessary. Alternatively, an interference fit can be used.
  • FIG. 1 shows a first embodiment of a heat exchanger
  • Fig. 3 shows a third embodiment of a heat exchanger
  • Fig. 4 shows a schematic section through a heat exchanger.
  • FIG. 1 schematically shows a heat exchanger 1 with a housing 2, in which a primary side 3 and a secondary side 4 are arranged.
  • the primary side has a flow path, not shown in FIG. 1, for a heat transfer fluid from an inlet connection 5 to an outlet connection 6.
  • the direction of flow is shown by arrows 7.
  • the secondary side also has a flow path for a liquid that is to be heated.
  • This flow path extends between an inlet connection 8 and an outlet connection 9.
  • a heat transfer surface takes place between the liquid flowing on the primary side 3 and the liquid flowing on the secondary side 4 via a schematically illustrated heat transfer surface 10.
  • 1 is highly schematic for reasons of clarity.
  • Fig. 4 shows somewhat more clearly how the flow paths are arranged.
  • the cavities 13, in which crosses are drawn, belong to the primary side 3.
  • the primary side 3 and the secondary side 4 are flowed through in countercurrent, so that optimum heat transfer takes place can reach from the primary side 3 to the secondary side 4.
  • a valve 14 is provided, the valve housing 15 of which is built into the housing 2.
  • the control of the liquid flow on the primary side 3 controls the heat supply to the heat exchanger 1 via the volume of this liquid. If, for example, process water is drawn off from the drain connection 9, colder process water flows to the supply connection 8. In this case, the valve 14 opens, so that an increased amount of heat is conveyed into the primary side 3 and can be transferred from there to the secondary side 4.
  • the valve 14 is designed as a built-in valve, the valve insert 15 of which is located inside the housing 2.
  • the valve insert 15 has a valve seat 16 with which a valve element 17 interacts, which is actuated by an actuating device 19 via a tappet 18.
  • the valve element When the valve element is moved towards the valve seat 16, the inflow of liquid is throttled to the primary side. If the valve element 17 is lifted off the valve seat 16, then a greater inflow of heat transfer fluid is permitted.
  • the valve insert 15 has lateral openings 20 through which the heat transfer fluid can flow out of the valve 14 when the valve element 17 has been lifted off the valve seat 16.
  • the valve 14 is arranged in a bore which forms a continuation of the inlet connection 5. You can therefore create the space for the valve 14 simply by making a bore in the housing 2 from the side of the actuator 19. If a drill with a stepped diameter is used, different diameters can be produced for the inlet connection 5 and for a housing bore 21. If the heat exchanger is soldered together from punched plates, the hole can also be made through punched holes in the plates. 5 The detailed structure of such a built-in valve is shown in Fig. 4. In the housing 2, a connecting sleeve 22 is attached, which receives the inlet port 5.
  • the connecting sleeve 22 can, for example, have a suitable internal thread 23, so that a screw connection between the connecting sleeve 22 and an inlet tube (not shown in more detail) for the heat transfer fluid can be produced on the primary side.
  • the valve housing 15 of the valve 14 is connected to the connecting sleeve 22 via an intermediate element 24.
  • the intermediate element 24 carries 5 the valve seat 16 at the same time.
  • a seal 25 between the connecting sleeve 22 and the intermediate element 24 ensures that liquid cannot pass the valve 14 when the valve element 17 bears against the valve seat 16, as shown.
  • the intermediate element 24 it is possible to connect the connecting sleeve 22 and the valve housing 15 to one another, for example to connect Screw. Such a connection then ensures a reliable fastening of the connecting sleeve 22 and valve housing 15 in the housing 2.
  • valve element 17 can be flowed through through the valve seat 16. This prevents the valve element 17 from starting to oscillate when the valve is increasingly throttled.
  • valve 14 is arranged in the area of the inlet connection 5. This permits a relatively simple actuation of the valve 14 from the side of the housing 2 opposite the inlet connection 5 by the actuating device 19.
  • Fig. 2 shows a modified embodiment of a heat exchanger, in which the same elements are provided with the same reference numerals.
  • the valve 14 is arranged in the area of the outlet 6 of the primary side 3.
  • valve element 17 In order to ensure that the valve element 17 is flowed through by the liquid flowing out of the outlet connection 6 through the valve seat 16, the valve element 17 is loaded by a closing spring 32 which is supported on a cage 29 which is arranged on the inner wall of the housing 2.
  • the cage 29 has openings 30 through which the liquid can flow to the outlet connection 6.
  • the actuating device 19 stresses the valve element 17 in the opening direction, ie the tappet 18 presses the valve element 17 away from the valve seat 16 against the force of the closing spring 32 in order to open the valve.
  • Fig. 3 shows a further embodiment of a heat exchanger, in which the same parts are provided with the same reference numerals.
  • valve 14 is also arranged in the region of the outlet connection 6.
  • the valve seat 16 also flows against it.
  • the actuating device 19 is now arranged on the same side as the outlet connection 6.
  • a T-piece 31 is provided, through which the plunger 18 is guided.

Landscapes

  • 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)
  • Water Supply & Treatment (AREA)
  • Valve Housings (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur de chaleur (1) pourvu d'un boîtier (2) qui présente un côté primaire (3) et un côté secondaire (4) en liaison de transfert de chaleur avec le côté primaire (3), ledit côté primaire (3) présentant un chemin d'écoulement primaire situé entre un raccord d'entrée (5) et un raccord de sortie (6), une soupape (14) étant également prévue pour commander un flux de fluide à travers ledit chemin d'écoulement primaire. L'objectif de cette invention est d'obtenir un échangeur de chaleur de structure compacte. A cet effet, la soupape (14) est conçue sous forme de soupape intégrée et au moins une partie d'une garniture (15) de soupape est placée dans le boîtier (2).
EP05731238A 2004-04-26 2005-04-21 Echangeur de chaleur Withdrawn EP1740887A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004020295A DE102004020295C5 (de) 2004-04-26 2004-04-26 Wärmetauscher
PCT/DK2005/000274 WO2005103571A1 (fr) 2004-04-26 2005-04-21 Echangeur de chaleur

Publications (1)

Publication Number Publication Date
EP1740887A1 true EP1740887A1 (fr) 2007-01-10

Family

ID=34964725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05731238A Withdrawn EP1740887A1 (fr) 2004-04-26 2005-04-21 Echangeur de chaleur

Country Status (5)

Country Link
EP (1) EP1740887A1 (fr)
CN (1) CN1946972A (fr)
DE (1) DE102004020295C5 (fr)
RU (1) RU2343388C2 (fr)
WO (1) WO2005103571A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE535592C2 (sv) * 2011-02-04 2012-10-09 Alfa Laval Corp Ab Plattvärmeväxlare
DE102020126579A1 (de) * 2020-10-09 2022-04-14 Viessmann Climate Solutions Se Verfahren zum Betrieb einer Kältekreislaufvorrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2066771C1 (ru) * 1992-11-26 1996-09-20 Центральный научно-исследовательский автомобильный и автомоторный институт Теплообменник
SE9502189D0 (sv) * 1995-06-16 1995-06-16 Tetra Laval Holdings & Finance Plattvärmeväxlare
JPH09152297A (ja) * 1995-11-30 1997-06-10 Sanyo Electric Co Ltd プレート式熱交換器
DE19702897C2 (de) * 1996-09-11 1998-10-01 Limax Oel Gas Fernwaermetechni Temperaturvorregelung für Brauchwasserwärmesysteme
FR2790073B1 (fr) * 1999-02-24 2001-06-08 Mer Joseph Marie Le Echangeur thermique a plaques, a vanne integree
FR2843449B1 (fr) * 2002-08-09 2005-05-06 Valeo Thermique Moteur Sa Echangeur de chaleur pour le circuit d'air d'admission d'un moteur thermique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2005103571A1 *

Also Published As

Publication number Publication date
CN1946972A (zh) 2007-04-11
RU2343388C2 (ru) 2009-01-10
WO2005103571A1 (fr) 2005-11-03
DE102004020295C5 (de) 2012-05-31
DE102004020295B3 (de) 2006-02-16
RU2006140884A (ru) 2008-06-10

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