WO2005078370A1 - Echangeur de chaleur a chambre contenant un milieu de mesure - Google Patents

Echangeur de chaleur a chambre contenant un milieu de mesure Download PDF

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Publication number
WO2005078370A1
WO2005078370A1 PCT/EP2005/001336 EP2005001336W WO2005078370A1 WO 2005078370 A1 WO2005078370 A1 WO 2005078370A1 EP 2005001336 W EP2005001336 W EP 2005001336W WO 2005078370 A1 WO2005078370 A1 WO 2005078370A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
medium
chamber
valve
measuring medium
Prior art date
Application number
PCT/EP2005/001336
Other languages
German (de)
English (en)
Inventor
Egbert Petrick
Original Assignee
Pewo Energietechnik Gmbh
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
Priority claimed from DE200410006390 external-priority patent/DE102004006390B4/de
Priority claimed from DE102004020464A external-priority patent/DE102004020464A1/de
Priority claimed from DE200410029650 external-priority patent/DE102004029650A1/de
Application filed by Pewo Energietechnik Gmbh filed Critical Pewo Energietechnik Gmbh
Publication of WO2005078370A1 publication Critical patent/WO2005078370A1/fr

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels

Definitions

  • the invention relates to a heat exchanger, in particular a plate heat exchanger.
  • the heat exchangers in particular the plate heat exchangers, are regulated in apartment warming centers. There is a reduction in the time of death through exchange media.
  • Chambers sensors are arranged, which again cause physical inertia.
  • the object of the invention is to find a heat exchanger, in particular a plate heat exchanger, which eliminates the disadvantages of the prior art and thereby realizes the media processing by means of a heat exchanger as a function of the supply of a control medium.
  • a heat exchanger in particular a plate heat exchanger
  • a heat exchanger is designed such that a separate chamber is provided directly on the energy exchange plates of the heat exchanger.
  • a measuring medium which reacts to the corresponding temperature change with a volume change and thus executes a connected control or regulating element via a measuring medium connection.
  • the separate chamber is connected directly to the heat exchange elements in order to signal a direct temperature change via the measuring medium.
  • a temperature control with control limiting, keeping warm and start function for a heat exchanger where a controller and / or control valve is arranged in the return and a measuring medium is located directly in the heat exchanger in a separate chamber and a measuring medium connection between the measuring medium and a valve is executed.
  • the corresponding measuring medium can be a capillary liquid.
  • An embodiment with gas, such as nitrogen, is also possible.
  • the decisive factor here is that when the temperature in the heat exchanger changes due to the control medium, the measurement medium expands or contracts. This change is implemented as a signal transmitter for a valve which is arranged in the flow or return.
  • the separate chamber for containing the measuring medium can be arranged within the heat exchanger as a respective end plate or middle plate. The respective end plates or middle plates of the heat exchanger are provided directly on the heat exchanger plate of the cold or hot water or another medium to be regulated.
  • a valve is arranged in the return or flow from the heat exchanger.
  • This valve is used to set a correspondingly defined, predetermined temperature, for example 10 to 90 ° C.
  • a thermal contact is carried out in the self-contained thermal circuits of a heat exchanger in such a way that at the thermal contact point of these two circuits a capillary liquid or a gas are arranged, which are directly related to a valve.
  • a thermal change in both temperatures of the heat exchanger an expansion or contraction of this liquid or gas is effected via the capillary liquid or the gas, and thus a valve movement is brought about at the connected valve.
  • This thermal contact point between the two closed circuits of the return and the cold water of a heat exchanger can be designed in various designs. It is possible to use the existing end plates or to insert plates at the ends or in the middle, which then contains the corresponding measuring medium.
  • the capillary liquid or the gas are in any case approved according to the legal provisions for luxury foods, and therefore there is no harm if there is a breakdown in the existing heat exchanger and there is direct contact with the given drinking water, for example.
  • FIGS. 1a to 1d showing the respective arrangement of the heat exchanger 1 with the presence of the separate chamber in the form of an end plate 2, 4 and a middle plate 3 in the heat exchanger 1. Furthermore, FIG. 2, FIG. 3a, 3b, 3c, FIG. 4, FIG. 5 and FIG. 6 and 6a are given.
  • FIG. 5 Block diagram "Apartment heating center”
  • FIG. 5 general circuit "remote transmitter chamber and thermostatic valve”
  • an outer end plate is provided directly as a separate plate with the measuring medium included.
  • a corresponding heat exchange function of the two chambers of the heat exchanger 1 with a given cold water inlet KW and inlet V and outlet R is present on the secondary side.
  • the direct contact of the separate chamber as the end plate 2 is given here.
  • a measuring medium for example a capillary liquid or a gas, in particular nitrogen, is provided in the end plate 2 as a separate chamber of the heat exchanger 1. Due to the temperature change in the heat exchanger 1, the volume size of the measurement medium in the end plate 2 changes. Due to the measurement medium connection 5 between the separate chamber as the end plate 2 and a valve 6, a control signal is given to the valve due to the change in volume, which in this particular exemplary embodiment is arranged in the return R of the heat exchanger 1.
  • FIG. 1b The same arrangement options are shown in FIG. 1b, it being particularly noteworthy here that a central plate 3 is present in the heat exchanger 1.
  • the measuring chamber is located in the heat exchanger 1 as a separate chamber of a respective end plate 2, 4 or middle plate 3.
  • this measuring medium By arranging this measuring medium in the separate chamber of the heat exchanger 1, different setting variants can be achieved, since the measuring medium contained is located directly in the heat exchanger 1, ie exactly where the heat exchange process takes place. Due to the direct contact of these corresponding chambers, the measurement can be carried out at this point and thus a quick, precise value determination can be carried out. An immediate change of position is possible.
  • the measuring medium can be a capillary liquid or other liquid or be a gas which changes the volume in response to corresponding temperature changes.
  • a control element for example a hydraulic or pneumatic actuator
  • a control for example a pressure switch
  • These functions can be used in all areas of application of heat exchangers 1 in order to implement heating or cooling systems.
  • different measuring liquids or gases are used as the medium. Due to the special temperature behavior in the heat exchanger 1 and the arrangement of the measuring chambers As separate chambers in end plates or middle plates, specific setpoint shifts can be achieved by changing the quantity or temperature of the heating / cooling control media.
  • FIG. 2 shows a heat exchanger 1 in the form of a plate heat exchanger, it being evident that the end plate 2 with the measuring medium included and a measuring medium connection 5 is arranged outside.
  • the end plate 2 of the heat exchanger 1 is connected directly to an exchange plate of the heat exchanger 1 in order to carry out the advantage of the direct temperature change via the measuring medium connection 5 towards a valve 6 or another control element, which is essential to the invention.
  • FIG. 4 shows a block diagram of a technical application of the return temperature limiter with a start function, in particular for use in a domestic heating system.
  • a heat exchanger 20 is provided, which is designed on the primary side with the flow V and the return R, for example heating water.
  • On the secondary side there is a cold water supply KW and a hot water outlet WW.
  • a thermostatic valve 100 is now arranged in the return R on the part of the heat exchanger 20.
  • a remote transmitter chamber 10 flows through the control medium inlet 70 and the control medium outlet 80.
  • This remote transmitter chamber 10 is also flowed through with the cold water inlet 90 and cold water outlet 110.
  • the two media are separated by an inner and outer ring chamber 40 and 50 in the cross tube.
  • the return R is regulated by the heat exchanger 20 via a thermostatic valve 100 in thermal connection with a cold water inlet 90 in the cross tube of the remote control chamber 10.
  • the remote transmitter chamber 10 is connected to the thermostatic valve 100 via a capillary liquid line 30.
  • FIG. 5 shows a general structure of a remote sensor chamber 10 in connection with the thermostatic valve 100. It is possible to do both Execute components directly connected. As a rule, however, the two essential components of the return temperature limitation with start function are not directly connected to each other. The actual connection exists only via the capillary liquid line 30. A predetermined pipeline, depending on the type of construction, is then inserted between the remote transmitter chamber 10 and the thermostatic valve 100. The thermostatic valve 100 is arranged via a valve 160 directly in the return R on the part of the heat exchanger 20 in terms of control technology.
  • FIG. 6 shows a cross section of a remote transmitter chamber 10 in the form of a cross tube.
  • the cross tube is manufactured according to its embodiment in a known design, it being essential that an outer or inner annular chamber 40 and 50 are arranged laterally within the cross tube of the remote transmitter chamber 10 in the direction of flow via the control medium inlet 70 to the control medium outlet 80.
  • These outer and inner annular chambers 40 and 50 are attached to the housing of the cross tube at the respective end via a corresponding fixed connection, advantageously a soldered connection 120.
  • a space is present between the outer ring chamber 40 and the inner ring chamber 50, which contains a capillary liquid 60.
  • a capillary fluid line 30 is attached to this space via the outer annular chamber 40 in order to change the volume of the capillary fluid 60 in the space between the outer and inner annular chambers 40 and 50 to transmit.
  • This capillary fluid line 30 is thus included with the same capillary fluid 60, the capillary fluid line 30 being inserted directly into an existing thermostatic valve 100 of a known type.
  • the capillary liquid line 30 is connected directly to a specific expansion body, which is predetermined, in order to convert the change in volume of the capillary liquid 60 at the thermostatic valve 100 into a corresponding valve position.
  • the outer and inner annular chambers 40 and 50 are preferably made of copper.
  • the capillary liquid 60 is furthermore characterized by a luxury food approval, so that in the event of an accident in the cross tube in the remote control chamber 10 there is no impairment of the quality of the drinking water which flows through the cross tube via the cold water inlet 90 and the cold water outlet 110.
  • FIG. 6a shows a top view of the cross tube. It can be seen here that the cold water inlet 90 flows around the outer annular chamber 40 up to the cold water outlet 110 and thus there is a temperature effect on the existing capillary fluid 60.
  • the control medium inlet 70 flows through the existing measuring chamber 150 to the control medium outlet 80. This influence on the temperature via the inner annular chamber 50 is also transferred to the capillary liquid 60 in a control-effective manner.
  • the following functions can be implemented with the inventive solution: double, temperature-dependent controlled opening and closing of a liquid-guided supply line
  • the heating water temperature in the measuring chamber 150 in the remote control chamber 10 is kept at a set desired value, for example 35 ° C., via the thermostatic valve 100.
  • valve 160 of thermostatic valve 100 closes.
  • the system is cooled down by releasing energy into the environment. If the setpoint is undershot, valve 160 of thermostatic valve 100 is opened. This process maintains a quick start phase.
  • a hot water supply WW is carried out by a customer.
  • the cold water KW begins to flow suddenly, this cold water KW flowing over the cold water inlet 90 towards the cold water outlet 110 into the remote control chamber 10 along the outer annular chamber 40.
  • the second medium in the remote control chamber 10 stands still in the return R through the closed valve 160 of the thermostatic valve 100.
  • the capillary liquid 60 is contracted, and the valve 160 in the thermostatic valve 100 is opened the control medium flows through the cross tube of the remote transmitter chamber 10.
  • the state of the capillary liquid 60 in the space between the outer annular chamber 40 and the inner annular chamber 50 is automatically influenced by the existing change in temperature, the flow of the control medium and the cold water KW in the cross tube. In conclusion this becomes a resulting setpoint is executed via valve 160 of thermostatic valve 100.
  • the DHW hot water consumption by a customer is carried out in various quantities without interruption.
  • the influence of the control medium in the measuring chamber 150 with effect on the capillary liquid 60 is much greater than the influence of the cold water KW flowing through, so that the size of the return flow R to be controlled actually remains constant at the setpoint.
  • a respective valve 160 of the thermostatic valve 100 is dependent on the state of the capillary liquid 60 via the capillary liquid line 30 up to the expansion vessel in the thermostatic valve 100. It is important how the respective temperatures are related to each other through the introduction of the cold water KW and the flow through the return flow R behavior. In addition, when the capillary liquid 60 contracts, that is to say the temperature is colder than a certain desired value, the valve 160 is opened and closed in the reverse manner.
  • a possible form of a heat exchanger 1 is present in a different construction, that is to say not in a plate construction but in pipes, wave form etc.
  • the separate chamber with the measuring medium contained can also be arranged.
  • a separate chamber with an included measuring medium is installed directly in the heat exchanger 1 and thus the direct contact and the corresponding temperature change via the measuring medium connection 5 between the measuring medium and a given actuator in the form of a rule - or to ensure control systems.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un échangeur de chaleur, notamment un échangeur de chaleur à plaques, qui peut être ajusté dans des centres de chauffage d'habitations et qui raccourcit les temps morts dus aux milieux caloporteurs.
PCT/EP2005/001336 2004-02-10 2005-02-10 Echangeur de chaleur a chambre contenant un milieu de mesure WO2005078370A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE200410006390 DE102004006390B4 (de) 2004-02-10 2004-02-10 Rücklauftemperaturbegrenzer mit Startfunktion
DE102004006390.7 2004-02-10
DE102004020464A DE102004020464A1 (de) 2004-04-26 2004-04-26 Temperaturregler mit Regelbegrenz-, Warmhalte- und Startfunktion
DE102004020464.0 2004-04-26
DE102004029650.2 2004-06-18
DE200410029650 DE102004029650A1 (de) 2004-06-18 2004-06-18 Wärmeübertrager mit beinhalteter Messmedienkammer

Publications (1)

Publication Number Publication Date
WO2005078370A1 true WO2005078370A1 (fr) 2005-08-25

Family

ID=34864744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/001336 WO2005078370A1 (fr) 2004-02-10 2005-02-10 Echangeur de chaleur a chambre contenant un milieu de mesure

Country Status (1)

Country Link
WO (1) WO2005078370A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008037852A1 (de) * 2008-08-15 2010-02-18 Robin Petrick Plattenwärmetauscher
NL2027705B1 (en) * 2021-03-04 2022-09-23 Fortes Imp Installatie Agenturen B V A method of preparing heated water and a building comprising a system to prepare heated water
EP4296602A1 (fr) * 2022-06-24 2023-12-27 G20 Engineering S.r.l. Échangeur de chaleur à plaques et ensemble hydraulique comprenant un tel échangeur de chaleur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608195A1 (fr) * 1993-01-21 1994-07-27 H.S. Tarm A/S Echangeur de chaleur à plaques et système avec échangeur de chaleur à plaques
WO2001042729A1 (fr) * 1999-12-08 2001-06-14 Alfa Laval Ab Systeme echangeur de chaleur et procede de regulation d'un fluide traversant un systeme echangeur de chaleur
WO2002070976A1 (fr) * 2001-02-20 2002-09-12 Alfa Laval Corporate Ab Echangeur thermique a plaques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608195A1 (fr) * 1993-01-21 1994-07-27 H.S. Tarm A/S Echangeur de chaleur à plaques et système avec échangeur de chaleur à plaques
WO2001042729A1 (fr) * 1999-12-08 2001-06-14 Alfa Laval Ab Systeme echangeur de chaleur et procede de regulation d'un fluide traversant un systeme echangeur de chaleur
WO2002070976A1 (fr) * 2001-02-20 2002-09-12 Alfa Laval Corporate Ab Echangeur thermique a plaques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008037852A1 (de) * 2008-08-15 2010-02-18 Robin Petrick Plattenwärmetauscher
NL2027705B1 (en) * 2021-03-04 2022-09-23 Fortes Imp Installatie Agenturen B V A method of preparing heated water and a building comprising a system to prepare heated water
EP4296602A1 (fr) * 2022-06-24 2023-12-27 G20 Engineering S.r.l. Échangeur de chaleur à plaques et ensemble hydraulique comprenant un tel échangeur de chaleur

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