EP0934479A2 - Dispositif de soupape et corps de chauffe associe - Google Patents

Dispositif de soupape et corps de chauffe associe

Info

Publication number
EP0934479A2
EP0934479A2 EP97948831A EP97948831A EP0934479A2 EP 0934479 A2 EP0934479 A2 EP 0934479A2 EP 97948831 A EP97948831 A EP 97948831A EP 97948831 A EP97948831 A EP 97948831A EP 0934479 A2 EP0934479 A2 EP 0934479A2
Authority
EP
European Patent Office
Prior art keywords
valve
section
closure
heating
thermostat
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Withdrawn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
EP97948831A
Other languages
German (de)
English (en)
Inventor
Harald Fonfara
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.)
Kermi GmbH
Original Assignee
Kermi 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
Application filed by Kermi GmbH filed Critical Kermi GmbH
Publication of EP0934479A2 publication Critical patent/EP0934479A2/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Withdrawn legal-status Critical Current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
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0009—In a two pipe system
    • F24D19/0012—Comprising regulation means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
    • G05D23/022—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed within a regulating fluid flow

Definitions

  • the invention relates to a valve device according to the preamble of claim 1 and a heating element equipped therewith according to claim 13. Furthermore, the invention relates to a thermostat device which can be used with the valve device according to the invention or the heating element according to the invention, according to the preamble of claim 20.
  • Valve devices are known in the prior art in which the entire, at least approximately linear, control range of the flow cross-section is obtained over a relatively small stroke range of a closure device, for example a valve disk.
  • valve devices are therefore only suitable for a relatively coarse control, which in the case of thermostatic valves often leads to the fact that their control function essentially consists in frequently opening and closing the entire flow cross section, which leads to a relatively uneven temperature profile of the room temperature of an appropriately regulated one Living space can lead.
  • an intended radiator must be operated with a power reduction of up to 600 watts or more so that the room temperature does not rise excessively.
  • the discrepancy of 600 watts to be corrected accounts for a fluctuation in output of 20% of the total output of the radiator in question. With a radiator output of 700 watts, a fluctuation bandwidth of 600 watts makes up a discrepancy of 86% to be corrected.
  • the heat required in a room can usually be provided by a radiator that only provides radiant heat that is essential for the health of the occupants. It is more dangerous because the air temperature can be lower, while the warmth and comfort impression for the occupants is improved. In addition, due to the reduced air convection, there is less pollution of the room air with dust particles.
  • thermostats with a faster or steeper and / or non-linear response behavior would also be desirable, whereby such thermostat devices should be able to do without complicated electronics, that is, should be able to work purely mechanically.
  • a valve device with an improved response behavior or a diversified flow control behavior and a heating body for a regular radiant heat requirement with an additional capacity and a thermostatic device with a non-linear or fast response behavior are to be proposed to the to be able to cover problems raised by the Heat Protection Ordinance 95.
  • a valve device constructed according to the invention which can preferably be used for a radiator, for example a plate heater, has a housing and a flow and a return, a closure device being provided between the flow and the return, for example a valve plate and a Valve seat.
  • this valve device is provided with at least two feeds or at least two returns, the closure device being assigned to each of the two feeds or each of the two returns.
  • the closure device or the valve plate can be provided in a line section having approximately the diameter of the valve plate, for example between the feeds and the return, the two feeds and returns being arranged one behind the other in the flow direction, so that initially by adjusting the valve plate which can flow through a flow or return with increasing adjustment and then the further flow or return can also be gradually and finally completely flowed through further adjustment of the valve plate.
  • a certain leakage current through the line section past the partially opened valve plate can be readily accepted, since a correspondingly low leakage rate at the low pressures used in central heating systems does not lead to circulation through this area.
  • a corresponding valve device can be used, for example, to flow two different heating bodies with heating medium, for example a front radiation section directed into the room and a convection section located behind it.
  • this valve can also be attached to a connection line with both supply or supply or return or also drains, so that a longer, substantially linear control range is accessible when the first inflow or outflow opening is opened or released which is then followed by a further linear control range when the second inlet or outlet is opened. Corresponding linear control ranges accordingly also occur when the valve disk is readjusted or closed.
  • a closure device in particular a valve disk with this valve seat, can be assigned to each of the two inlets or each of the two outlets.
  • a closure device By opening only the first closure device or the first valve plate, for example first a heating section of a heating body and then a further heating section of a heating body, the flow of heating medium or vice versa can be excluded from the inflow with a heating medium. If in turn both inlet and outlet openings are transferred into a line, the linear characteristic of the valve according to the invention can in turn be significantly extended.
  • the closure devices or valve seats are preferably arranged coaxially or axially in line and, if desired, one behind the other. If the locking devices or valve plates are then actuated via a provided valve tappet by a setting knob or a corresponding thermostatic head, the two valve plates can be opened at different temperatures in order to release the heating power of a correspondingly connected heating element to match the room temperature.
  • the valve device according to the embodiment of the invention can also be controlled, the relevant ones two inlets or outlets do not necessarily have to be designed as circular openings, but can also be designed as slot-shaped, oval or triangular openings. It should be taken into account that the valve housing or the valve body with the inlets and outlets can be made of plastic, it being possible for the valve body to be inserted or pressed into a brass or gunmetal housing or also into a plastic housing.
  • a larger flow cross section is successively released, for example by lifting two valve plates located in one plane one after the other.
  • the one valve plate can be provided movably in the central region of the other valve plate.
  • a certain flow area is then initially released, in which case the ring-shaped second valve plate surrounding the first valve plate can then be raised in order to increase the free flow cross section through the valve device and to thereby lengthen the linear control range.
  • One of the two closure devices or one of the two valve plates should be preloaded with respect to the other valve plate, so that it remains unaffected in its at least substantially closed position during the adjustment of the one closure device, preferably valve plate, over a preferably adjustable adjustment distance, and then also in the flow through the valve device to be moved regularly.
  • One closure device can be connected directly to a valve tappet, the other closure device being able to remain pressed against the valve seat assigned to it, for example via a spring device.
  • a driver device " can preferably be provided, which takes the other closure device with it from a certain degree of adjustment of the one valve plate relative to the other valve plate, even if the spring device provided other valve disc should still press against the valve seat assigned to it.
  • the other closure device or the other valve plate can also be carried differently.
  • the spring valve pressing the other valve plate against the associated valve plate can be designed in terms of its spring travel and its spring force so that the spring force diminishes at a certain setting and the spring, which has returned fully to a rest position, takes the valve plate with it, whereby the assigned opening gradually after increasingly and finally fully released.
  • a separate adjustment mechanism can also be assigned to each of the closure devices or valve plates used.
  • an adjustment mechanism for both valve disks will be preferred, this adjustment mechanism only responding with a delay with respect to the two valve disks.
  • valve device is arranged with a closure device in the other closure device, the other closure device having a passage, the one closure device acting on the flow cross section of the passage.
  • the passage can have an axial and a radial section, the one closure element on the flow cross section of the axial and / or the radial section of the passage can act.
  • this alternative embodiment according to the invention can be developed in a similar manner to the preceding embodiments.
  • the inflow or outflow of the valve device can preferably merge into one another, so that when the other closure and the one closure are both open, there is an enlarged flow cross section.
  • the optionally provided radial section of the passage in the other closure device and the inlet and outlet of the valve device can be arranged such that they both open into the same line, so that when the other closure and the one closure are both open , the specified enlarged flow cross section inevitably results.
  • This embodiment also allows the linear control range of the valve device according to the invention to be increased in order to enable finer control, in particular of a heating element.
  • thermostatic device or thermostatic cartridge which can comprise, for example, a wax or paraffin capsule.
  • valve devices according to the invention can be used to control a special heating element designed according to the invention.
  • a heater the development of which is also part of the present invention, has a heating section at least predominantly set up for radiation and an at least predominantly set up heating section for convection.
  • a heating medium preferably water.
  • a valve or thermostat device is also provided, the valve or thermostat device having a flow-influencing section which is the radiant heating section is assigned, and has a further valve or thermostat device which has a second flow-influencing section which is assigned to the convection heating section.
  • valve or valve provided in the radiator according to the invention can be replaced by the valve device according to the invention, wherein a thermostat device can optionally be provided, in which case the said valve or thermostat device has both the first flow-influencing section and the second flow-influencing section.
  • the two valve or thermostat devices should be able to respond at different room temperatures, for example by means of thermostat sections, for example wax capsules or paraffin capsules, with different response characteristics.
  • the Schuppe ⁇ er can have a flow and a return for each heating section or a common flow or a common return can be provided.
  • the individual heating sections of this radiator according to the invention can also be spatially separated from one another.
  • the radiant heating section could then also be provided as a ceiling heater, for example, while the convection heating section can be arranged further away from the radiant heating section, for example in a wall niche.
  • a thermostatic capsule in particular a wax or paraffin capsule, is proposed according to the invention, which has a housing, wherein in the housing a volume is subjected to thermal expansion Medium, in particular paraffin or wax, is made available. Furthermore, a section which absorbs the thermal expansion or shrinkage of the medium subjected to the thermal expansion is provided and is movable in itself. This section is driving an actuating device, for example a valve tappet, as can be assigned, for example, to the closure devices of the valve device according to the invention.
  • an actuating device for example a valve tappet
  • the thermal expansion or shrinkage of the medium subjected to the thermal expansion is designed in a radial extent such that this section can change its dimension nonlinearly in the event of a volume change in its direction of extension or shrinkage.
  • Another advantage of this type of thermostatic capsule is that the section which compensates for the thermal expansion or shrinkage is able to provide an increased travel range.
  • Said section is preferably designed such that it is geometrically designed in the axial direction or in the volume compensation direction such that a linear change in volume leads to a non-linear change in length in the axial direction of the section.
  • a conically slimmer or a conically thicker shape can be used as the preferred geometric configuration of the section.
  • the disclosed thermostat capsule is not only suitable for the heating sector or for cooling, for example ceiling cooling, but also, for example, to be used as an automatic window opener or for the automatic actuation of greenhouse windows etc. and for various other control purposes.
  • the valve device proposed according to the invention can also be used not only in the heating sector, but also in various other technical fields, where an extension of a linear flow control range is desired or where successively two or more volumes (for example heating body sections) are to be included in a cycle or are to be excluded from the cycle.
  • FIG. 1A to IC a first embodiment of a valve device designed according to the invention in a longitudinal sectional view in several different settings;
  • Valve device in cross-sectional representations in different settings
  • Fig. 3 is a schematic representation of a valve characteristic with respect to it
  • thermostatic capsule or wax capsule according to the invention in a cross-sectional representation
  • Fig. 5 shows another embodiment of a thermostat capsule according to the invention, also in a cross-sectional representation.
  • 1A to IC show a first embodiment of a valve device designed according to the invention. It should be noted that the section assigned to an adjusting knob or a thermostat capsule is not shown in these figures, since this section can be designed in a conventional manner. Since the conventional design of a valve is known to the person skilled in the art, it need not be discussed in more detail here.
  • the embodiment 10 of a valve device according to the invention shown in FIG. 1A has a housing 12 which has an inlet opening 14 and two outlet openings 16a, 16b.
  • An inlet atrium 20 adjoins the inlet opening 14, to which a connection chamber 22 is attached.
  • the inlet atrium 20 is closed with respect to the inlet 14 in the closed state of the valve by a valve plate 18a which bears against a valve seat 18b.
  • the inlet atrium 20 can also be closed off via the chamber 22, namely via a further valve plate 24a, which bears against a valve seat 24b assigned to it.
  • valve plate 18a An adjustment of the valve plate 18a takes place via the plunger 28, to which an adjusting knob or a thermostatic head can be connected on the opposite side.
  • the plunger 28 is connected to the front valve plate 18a via a plug-in shoe 29, the plug-in shoe 29 having a driving section 30 at its end opposite the valve plate 18a, by means of which the plunger 28 can attack the valve plate 24a offset.
  • the valve plate 24a is preloaded against the valve seat 24b assigned to it by means of a spring 26, which is provided separately within a housing 32 with respect to the chamber 22.
  • valve plate 24a held in the closed position by the spring 26 is now carried along when the plunger 28 is adjusted further and releases the opening associated with the valve seat 24b to the connection chamber 22.
  • the latter setting, shown in FIG. IC, of the valve device 10 according to the invention connects, for example, another heating element or a further heating element section of a heating element to the inflow or outflow of a central heating system.
  • both drain openings 16a, 16b are connected to a common line, the linear control characteristic of the valve can be extended in this way, but only a connected volume or a heating element can be regulated with regard to the flow.
  • valve device according to the present invention is shown in different setting situations.
  • the housing 112 only has an inlet 114, for example from a central heating or cooling system and an outlet 116, for example to a heating ordegro ⁇ er on.
  • Another outlet 116a is provided in one of the valve disks, which is referred to less as a valve disk here and more as a valve and flow body 124a.
  • the valve and flow body 124a is received by the valve housing 112 and in turn carries a valve plate 118a.
  • valve and flow body 124a is sealed at its end facing away from the inlet 114 from the housing 112 of the valve device 100 with an O-ring seal.
  • the valve tappet 128, which is also sealed by an O-ring seal 140, is passed through a sealing section 141 on the rear section of the valve and flow body 124a, the valve and flow body 124a being preloaded against its seat 124b by a spring device 126.
  • the valve and flow body has an inlet section 114a adjoining the inlet 114, to which an inlet atrium 120 connects in the valve and flow body, which leads into the radially continued outlet 116a in the valve and flow body and as a result to the outlet 116 in the housing 112 connects.
  • the area identified by reference numeral 122 which is provided circumferentially between the outer circumference of the valve and flow body 124a and the valve housing 112, corresponds in particular to the connection chamber 22 according to FIGS. 1A to IC if the embodiment according to FIGS. 1A to IC also their two processes 16a, 16b are connected to a common line.
  • valve plate 118a and its activation within the valve and flow body 124a takes place in the embodiment according to FIGS. 2A to 2C, as happens in embodiment 10 according to FIGS. 1A to IC, which is also symbolized by the corresponding reference numerals that further discussion is unnecessary in this regard.
  • valve plate 118a If, as shown in FIG. 2B, the valve plate 118a is withdrawn via the tappet 128, the valve plate 118a opens the opening assigned to the valve seat 118b, so that via the inlet opening 114 and the inlet connection opening 114a, a liquid can flow through the valve device 100 through the inlet atrium 120 and the openings 116a, 116.
  • a freewheeling path S is provided between the valve plate arrangement of the valve plate 118a and the valve and flow body 124a.
  • the driver device 130 abuts the body 124a and when the plunger 128 is moved further, the entire valve and flow body 124a is carried along, as a result of which the body 124a is moved from the valve seat 124b assigned to it is lifted off, which means that the connection chamber 122 is also available as a free flow cross section for the passage of the heating medium through the valve device 100 according to the invention.
  • This setting is shown in Fig. 2C.
  • This configuration enables a heating medium to be controlled via an adjustment mechanism, that is to say synchronously, for example controlled by a thermostat capsule, to obtain a specific control characteristic which, for example, has a linear range which is substantially longer than that of conventional valve devices.
  • valve device 10 for example, if the connection chamber 122 is closed in the area in front of the outlet opening 116 and a further outlet opening is provided in the area 116b according to FIG. 2C, the valve device 10 according to FIG. 1A can in principle be used until IC can be realized.
  • FIG. 3 shows a diagram in which a valve characteristic curve versus a heating element characteristic curve is shown.
  • the valve characteristic curve should reflect the control characteristic and the heating element characteristic curve the performance characteristic of the valve or heating element.
  • a conventional radiator with almost 50% flow rate of heating medium already has almost its full heating power due to the properties of the heating medium used, preferably water.
  • the valve has only a small control range, so that, in particular in the case of radiators with low output, it is difficult to achieve adequate control with conventional valves.
  • the valve devices 10, 100 and their types are able to provide a flow control range which is significantly improved compared to the valve characteristic curve shown, which shows the control characteristic of conventional valves, since the time or thermally coordinated movement of two closure devices or Valve plates can be made available to each other, advantageously adjoining control ranges, so that the unfavorable heat emission properties of known radiators can be better taken into account.
  • FIG. 4 shows a thermostat capsule 200 according to the invention, which has a housing 250 which encloses a volume 252.
  • the volume 252 is filled with a medium that expands under the influence of heat or contracts in the cold. Materials commonly used here are wax, paraffin or the like.
  • a compensation section 254 extends into the housing 250.
  • the compensating section 254 has an opening 258 through which an actuating element, for example a valve lifter or the like, can protrude in order to lie against the surface 256 at the opposite end of the section 254.
  • section 254 In the event of rising temperatures, the medium in volume 252 will expand and the flexible area of section 254 will be compressed in accordance with this thermally induced increase in volume, causing section 254 is axially shortened and axially advances the actuating device or the valve tappet.
  • the thermostat capsule 200 shown in FIG. 4 is shown as a varied thermostat capsule 300 in FIG. 5.
  • the section 354 has an oppositely trapezoidal or conical shape, but in principle has the same nonlinear control characteristic with a corresponding geometrical configuration as the embodiment according to FIG. 4.
  • either the inlets or the outlets can be designed according to the invention, since, depending on which end of a radiator the valve device in question is connected to, either the radiator one inlet and two outlets or can have two inlets and one outlet or two inlets and two outlets.
  • a corresponding valve device can of course be arranged both on an inlet of a heating element and on an outlet of a heating element, so that the function of the valve device according to the invention must be adapted accordingly. Since these constructive measures for adapting the valve device according to the invention are within the specialist knowledge of the person skilled in the art, nothing additional needs to be carried out in the present disclosure.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Temperature-Responsive Valves (AREA)
  • Cookers (AREA)
  • Details Of Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

La présente invention concerne un dispositif de soupape avec enceinte, comprenant une arrivée et une sortie ainsi qu'un dispositif de fermeture et, de préférence, une tête de soupape et un siège de soupape. Un dispositif à soupape de ce type comporte au moins deux arrivées et au moins deux sorties, le dispositif de fermeture étant affecté à chacune des deux arrivées ou à chacune des deux sorties.
EP97948831A 1996-10-30 1997-10-29 Dispositif de soupape et corps de chauffe associe Withdrawn EP0934479A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1996143902 DE19643902C2 (de) 1996-10-30 1996-10-30 Ventileinrichtung sowie Heizkörper mit dieser
DE19643902 1996-10-30
PCT/EP1997/005967 WO1998019085A2 (fr) 1996-10-30 1997-10-29 Dispositif de soupape et corps de chauffe associe

Publications (1)

Publication Number Publication Date
EP0934479A2 true EP0934479A2 (fr) 1999-08-11

Family

ID=7809667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97948831A Withdrawn EP0934479A2 (fr) 1996-10-30 1997-10-29 Dispositif de soupape et corps de chauffe associe

Country Status (5)

Country Link
EP (1) EP0934479A2 (fr)
AU (1) AU6909898A (fr)
DE (1) DE19643902C2 (fr)
PL (1) PL333126A1 (fr)
WO (1) WO1998019085A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9722303D0 (en) * 1997-10-23 1997-12-17 Myson Scanglo Limited Flow control valves
DE19834151C1 (de) * 1998-07-29 2000-04-13 Neheim Goeke & Co Metall Ventil für Warmwasseranlagen
DE10002787B4 (de) * 2000-01-24 2006-03-02 Kermi Gmbh Heizsystem für einen Raum
DE10129454A1 (de) * 2001-06-19 2003-01-16 Danfoss As Ventil, insbesondere Heizkörperventil
DE102004050159A1 (de) * 2004-10-14 2006-04-27 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Kühlmittelkühler für Kraftfahrzeuge
DE102005037769A1 (de) * 2005-08-10 2007-02-15 Robert Bosch Gmbh Plattenheizkörper
DE102007016960B4 (de) * 2007-04-05 2010-04-01 Kermi Gmbh Vorrichtung zur Einströmung von Heizmedium in einen Heizkörper
DE102010055483B4 (de) 2010-12-22 2013-06-06 Danfoss A/S Ventil, insbesondere Heizkörperventil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428511A1 (de) * 1974-06-12 1976-01-22 Centra Buerkle Kg Albert Ventil
DE3413466A1 (de) * 1984-04-10 1985-10-17 Pierburg Gmbh & Co Kg, 4040 Neuss Thermisches arbeitselement
DE3928348A1 (de) * 1988-09-16 1991-02-28 Gestra Ag Thermisch gesteuertes ventil
DE29503705U1 (de) * 1995-03-04 1995-04-20 Wüst, Heinz, 76835 Gleisweiler Heizungsanlage, insbesondere zur Beheizung von Wohnräumen
DE29602171U1 (de) * 1996-02-08 1996-03-28 Balg, Hans-Alfred, 50321 Brühl Ventilvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9819085A3 *

Also Published As

Publication number Publication date
PL333126A1 (en) 1999-11-22
DE19643902C2 (de) 2002-05-23
WO1998019085A3 (fr) 1998-10-29
DE19643902A1 (de) 1998-05-07
AU6909898A (en) 1998-05-22
WO1998019085A2 (fr) 1998-05-07

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