WO2019228583A1

WO2019228583A1 - Flow quantity controller, adjustment device and method for operating a flow quantity controller

Info

Publication number: WO2019228583A1
Application number: PCT/DE2019/100072
Authority: WO
Inventors: Thomas Geck
Original assignee: Delta Systemtechnik Gmbh
Priority date: 2018-05-28
Filing date: 2019-01-24
Publication date: 2019-12-05
Also published as: DE102018008117A1; DE112019002713A5; EP3803218A1

Abstract

The invention relates to a flow quantity controller for a service water circuit and a heating water circuit of a service water-heating system, having a service water adjustment valve device in a first housing part of the flow quantity controller, and having a heating water adjustment valve device in another housing part of the flow quantity controller, wherein the heating water adjustment valve device is actuable by an actuation device by means of the service water adjustment valve device, and wherein the two housing parts are spatially separated from one another and/or the actuation device comprises a course-extending force-transmission element in order to reduce the danger of microbial contamination of the service water at the service water adjustment valve device.

Description

FLOW REGULATOR, DEVICE AND METHOD OF OPERATION

A FLOW REGULATOR

The invention relates to a flow rate regulator for a process water circuit and a Heizwasserkreislauf a service water heating system, with a Wasserwasserstellventileinrichtung in a first housing part of the flow rate controller and a Heizwasserstellventileinrichtung in a further housing part of the flow quantity regulator, wherein the Heizwasserstellventileinrichtung by an actuation device means of Hot water control valve device is actuated.

The invention further relates to an adjusting device for actuating a heating water adjusting valve device of a flow rate regulator as a function of an actuation of a service water adjusting valve device.

The invention also relates to a method for operating a flow rate regulator, in which a movement of a Heizwassersteuerkolbens Heizwasserstellventi leinrichtung is controlled in response to a movement of a service water control piston ner a service water control valve device.

Generic flow rate regulator of a service water heating system or in particular method for controlling such a flow rate regulator are already well known from the prior art.

These known flow rate regulators operate as a function of a reduced quantity of temperature-controlled process water, for example at a tap in the form of a water tap or the like, wherein a service water control piston of a service water control valve device of this flow rate controller is moved by means of a hot volume flow initiated by the flow rate regulator , Of the Domestic water control piston is un indirectly connected by means of a rod-shaped actuator un with a Heizwassersteuerkolben the Heizwasserstellventileinrichtung, whereby the movement of the service water control piston 1: 1 water control piston transmits to the heating. This ensures that a usually the flow rate controller downstream heat exchanger is always traversed with a sufficient amount of heating water to heat the amount of requested hot water safe to use.

A generic flow rate regulator is exemplarily explained in DE 20 2008 006 054 Eil, wherein the flow rate controller claims an improved seal arrangement for the fluidic separation of a service water flow path and a heating medium flow path for itself.

The invention has for its object to improve the generic flow regulator. In particular, the invention is based on the object of a genus in proper flow rate regulator a risk of germs, especially a present in a process water hot water, significantly reduce and best avoided completely.

These objects are achieved according to a first aspect of the invention of a flow rate regulator for a service water circuit and Heizwasserkreislauf a service water heating system, with a service water control valve device in a first housing part of the flow rate controller and a Heizwasserstellventilein direction in a further housing part of the flow rate controller, wherein the Heizwasserstellventileinrichtung by an actuator by means of the custom wasserstellventileinrichtung is actuated, and wherein the flow rate controller is characterized in that the two housing parts are arranged spatially separated from each other and / or the Betätigungseirichtung a stretch-extending Kraftübertra transmission element comprises.

Due to the proposed structure of the flow rate controller, the risk of Germination of the process water at the service water control valve device can be significantly reduced.

This spatial separation means that essentially the service water adjustment valve device and the heating water control valve device, in particular the mutually facing ends of the two relevant housing parts, do not enter into a physical or material connection either directly or indirectly.

So far, the individual housing parts of the flow rate controller are usually not completely thermally or thermally not completely separated from each other, but by Steckver compounds, screw connections or similar directly connected to each other, whereby the cold side of the flow regulator, so the service water side, to wel cher the hot water control valve device is always with the hot side of the flow rate controller, so the Heizwasserseite on which the Heizwasserstellven tileinrichtung is physically and thus also directly operatively connected.

In this respect, a previously known from the prior art flow rate regulator always forms a compact unit of two directly attached to each other components, in particular housings, which without further aids, such as additional holding means or the same, firmly but detachably interact with each other.

As a rule, both housing parts here consist of the same material, in particular of metal, so that there is no obstacle to heat transfer from the hot side to the cold side. Even if the two housing parts made of different materials ago or between the two housing parts, a component made of a different material, such as an insulator should be arranged, there is always a physical connection between the two housing parts.

A preferred complete thermal separation of the housing parts, accordingly preferably also the internal Heizwasserstellventileinrichtung and customary Wasserstellventileinrichtung, allows only an approximately minimal, but preferably almost no, transfer of heat energy of Heizwasserkreislaufes on the hot water circuit, outside of the control mode of the flow rate controller.

Outside normal operation, a transfer of heat between a hot water side device and a user water side device is actually always undesirable, especially if no hot water flows through the flow regulator. Here, hot water can also stand for a longer period, especially within the service water control valve device, whereby the risk of germination Ver increases. This microbial contamination should be avoided and this succeeds according to the first aspect of the invention by means of the proposed thermal separation.

Cumulatively or alternatively, thermal separation can also be enhanced or achieved solely by the fact that the actuating device comprises or is a force-transfer element extending over a distance.

Depending on the design of the flow rate controller or its installation environment succeeds by means of the present stretch-extending force transmission element a significant reduction of heat transfer from the Heizwasserstellventileinrich device to the service water control valve device, which in turn adjusts to the latter a lower heat level, which a nucleation in the custom wasserstellventileinrichtung at least not or only promotes negligible negligible. Such a stretch-extending force transmission element is within the meaning of the invention, a device by means of which a material-bound, wärmeübertra constricting distance between the Heizwasserstellventileinrichtung and the service water actuator valve device can be made longer than is the case with conventional gera the actuating rods. In this case, this force transmission element embodies a device, by means of which forces and thus movements, in particular between the control piston of the Heizwasserstellventileinrichtung and the service water control valve device can be transmitted.

In this respect, a delay line for heat energy transfer is realized by means of the present stretch-transmitting force transmission element, whereby less heat Me energy from the Heizwasserstellventileinrichtung or the hot side of the flow rate controller to the hot water control valve device or the cold side of the flow quantity controller can get.

In this respect, the force transmission element can also be regarded as a type of extended heat conduction element.

The terms "control valve devices" describe each control piston comprehensive, especially leading device in a housing through which ent neither hot water on the hot water circuit side or heating water on the heating water circuit side can be passed through. By means of the control piston, the flow rates of the respective medium are set on the flow rate regulator.

Thus, the flow rate regulator comprises at least two control valve devices, namely one on the side of the hot water circuit and one side of the heating water circuit. The first housing part with the service water control valve device can be integrated in the process water circuit in the present case.

Accordingly, the second housing part can be inserted with the Heizwasserstellventileinrichtung in the Heizwasserkreislauf.

The process water circuit is on the sanitary side of a domestic water system, such as a service water system of a building. In this respect, the hot water cycle leads in particular to the consumption of suitable drinking water, which can be requested at a tapping point and is subject to high hygiene requirements. Thus, the hot water cycle is open.

The heating water circuit, which is spatially separated from the service water circuit, is self-contained and does not provide contact between circulated heating media and persons. In other words, this means that, in particular, the present flow rate regulator is designed in such a way that hot water located on the side of the hot water control valve device can not reach the side of the domestic hot water valve device when it is properly operated, that is, not in the heating water circuit hot water circuit.

In the context of this invention, it is thus understood that the existing media of the two described circuits, hot water circuit and Heizwasserkreislauf, may not be mixed together to prevent contamination of the process water. It should be mentioned at this point that in the context of the present patent application the expression "in particular", if present, should always be understood to mean that this expression introduces an optional, preferred feature. The term is not to be understood as "and" and not as "namely".

It should also be noted that in the context of the present patent application indefinite articles and indefinite figures such as "a ...", "two ...", etc. should be understood as a rule as at least-information, ie as "at least one. .. "," at least two .. etc., unless it is not clear from the context or the specific text of a particular passage, that there about only "exactly one ...", "exactly two ...", etc. meant should be. It is understood that a physical separation between the two housing parts within the meaning of the invention structurally particularly simple means of a material-free area between see the housing of the service water control valve device and the housing of the heating wasserstellventileinrichtung can be accomplished.

In this respect, a preferred embodiment provides that the two housing parts are arranged at a distance separated from each other, wherein the distance is formed material-free.

By means of such a distance, a material-free gap can be created, in particular between the two housing parts, whereby a bodily heat transfer between the two housing parts is structurally simple, but extremely effectively prevented by means of such a trained insulator gap.

In this respect, there is preferably a solid-free intermediate space or a corresponding gap between the service water control valve device and the heating water control valve device or between the housing parts thereof.

In other words, in the present case air is used as insulator. It is understood that the distance between the two housing parts and thus also between the service water control valve device and the Heizwasserstellventileinrich device can be chosen almost arbitrarily.

For example, the distance depending on the performance of the Strömungsmen genreglers, the power of the entire service water heating system, etc. are chosen to avoid unwanted heat transfer from the Heizwasserstellventileinrichtung to Brauchwasserstellventileinrichtung in whole or at least negligible in a small extent.

For example, a distance as small as 5 mm can provide a sufficient insulator gap to reduce heat transfer in the sense of the invention. Preferably, the distance between the two housing parts is more than 10 mm or 50 mm, if sufficient space is available. Preferably, the distance in the context of the invention corresponds to the direct straight line between the two housing parts.

A spaced mounting of the two housing parts can take place in different ways.

It is expedient if the two housing parts are arranged spaced apart from one another by means of a holding device. Such a holding device may be a simple frame with corresponding receptacles for the individual housing.

This holding device can be designed to be open or simply closed as a box.

Or the holding device is provided by a building part of a building, such as masonry or the like.

Due to the physical separation of the two housing parts, a heat transfer, which is not desired at the flow controller, is successfully prevented from the side of the hot water control valve device to the side of the hot water control valve device or at least kept negligible.

Especially in the case of the present actuating device, it is expedient if the track-extending force-transmitting element is designed to be at least partially heat-insulating, whereby the effects of heat insulation can be improved in addition to the extension of the track.

Moreover, it is advantageous if the actuating device has a shape deviating from a straight line and / or a longitudinal axis. This alone enables the force transmission element to be stretched effectively. A straight line always represents the shortest connection between two points or places. In this respect, a suitably designed stretch-lengthening force transmission can be used. Supporting element, which has a basic body designed deviating from a straight basic body, a route extension in the sense of the present invention are well achieved.

In this case, the actuating device or the stretch-extending force transmission element provide a working connection deviating from a straight line between the heating water valve device and the service water control valve device.

Such an actuating device or such stretch-extending force transmission element over can be realized structurally diverse.

A structurally simple and thermally effective implementation can take place here, if the actuating device comprises a cable mechanism, in particular a Bowdenzugein unit, by means of which control piston of the service water control valve device and the Heizwasserstellventileinrichtung are operatively connected to each other.

If a cable element of the cable mechanics has sufficient inherent rigidity, both tensile and compressive forces can be transmitted between two control pistons of the flow rate regulator so that one control piston can be both pulled and pushed by the other control piston.

A cable element suitable for the present invention can consist, for example, of plastics, natural materials or the like.

In particular, with a Bowden cable of the Bowden cable unit not only tensile forces can be perfectly transmitted with a cable element, but also compressive forces, whereby a control piston can not only be pulled by the other control piston, but also ge pushed.

In the context of the invention, the Bowden cable unit comprises a cable element and a Mantelele element, in which the cable element is guided laterally. Here, the cable element (outside) and / or the jacket element (inside) each have a friction-reduced surface to transmit even the lowest tensile and / or compressive forces, so that hereby equipped flow regulator has a sufficiently sensitive response.

Cumulatively or alternatively, the cable element (outside) and / or the jacket element (inside) each have a contact-reduced surface. Such a con taktreduzierte surface can be achieved on the jacket element, for example, by a perfo-oriented and / or dimpled lateral surface or the like.

The same applies with regard to the cable element, which may alternatively also have a noppte surface or the like. In any case, it is advantageous in such a variant, when the control piston by means of the cable mechanism can be pulled and / or pushed.

The present flow rate regulator can be designed even more individual, when the actuator to the opposite sides of the service water control valve device and the Heizwasserstellventileinrichtung with control piston of the service water control valve device and the Heizwasserstellventileinrichtung are Wirkver prevented. Here, the Anknüpfungsstellen on the individual Stellventilein directions no longer need to be placed on directly opposite sides, as is the case with a straight trained actuating rod element.

As a result, the input and output sides for an actuating device, such as a track-extending force transmission element, a cable element or the like, on different sides of the service water control valve device or the Heizwasserstellventileinrichtung.

Furthermore, it is of particular advantage, for example, for an undesirable heat transfer at an actuating device between a Heißwassersteuerkol- ben the Heizwasserstellventileinrichtung and a service water control piston of the Service water valve device to exclude or at least be able to significantly reduce, if the service water control valve device and the Heizwasserstellven tileinrichtung by means of a transmission unit control or control technology mitei- other operatively connected. By means of such a gear unit can presently be provided an alternative stretch lengthening like actuator.

An even better thermal separation can be achieved with respect to the gear unit who the, if at least one forces and / or moments transmitted component of the transmission unit comprises a thermal insulator. Preferably, a plurality of components of the gear unit are made of a thermally insulating material, so that the thermal insulation effect on the gear unit can be further increased.

In addition to the thermal advantages described above, a gear unit between the service water control valve device and the heating water control valve device also has independent advantages and effects, such as almost any translations or spatial arrangements between the service water control valve device and the heating water control valve device or their housings can be realized.

For example, the service water control valve device and the heating water control valve device can also be arranged vertically one above another by means of a correspondingly set-up transmission unit, so that regulators can be realized which are very narrow in this way.

By virtue of this alone, a generic flow rate regulator can advantageously be developed further, so that the features relating to a gear unit in connection with such a flow rate regulator are already advantageous without the other features of the invention. In this respect, it can be said that the object of the invention is alternatively solved by a flow rate controller for a service water circuit and Heizwasserkreislauf a service water heating system, with a Brauchwasserstellventileinrichtung in a first housing part of the flow rate regulator and with a Heizwasserstellven tileinrichtung in a further housing part of the flow rate controller , wherein the Heizwasserstellventileinrichtung by means of the Brauchwasserstellventileinrich is actuated, and the service water control valve device and the Heizwasserstell valve device by means of a transmission unit control or control technology with each other operatively connected.

Thus, a flow rate regulator is advantageous, which has a transmission unit for the purpose of controlling and regulating the Heizwasserstellventileinrichtung in dependence speed of the service water control valve device and is operatively connected.

Advantageously, at least one force and / or torque transmitted component of the transmission unit to a thermal insulator, whereby the insulating performance of the flow rate regulator can be further improved.

In this respect, has a gear unit, whatever it is set, thermally iso lating effects.

In particular, this transmission unit is thermally insulated with the hot water control valve device and Heizwasserstellventileinrichtung operatively connected.

Such a composite can be realized for example by means of a rope mechanism.

A cable offers a correspondingly designed rope elements a very small cross section, through which a heat transfer can take place at all.

An advantage here is also the material used of the cable. This can be, for example, a synthetic fiber or a particularly suitable natural fiber. Both materials are known, among other things, for their good thermally insulating properties. Cumulatively or alternatively, this functional composite can be designed by means of a gear wheel mechanism.

Here, too, already known materials are present which have particularly desirable thermal properties. These include, among others, plastics, other technical materials, but possibly also metals with correspondingly low coefficients of thermal conductivity or the like.

It is understood that in particular a coupling part depending on the design and application of the flow rate regulator can be made of different materials. In any case, it is advantageous if the Heizwasserstellventileinrichtung is indirectly actuated by intermediate circuit of a thermal insulator device through the Brauchwasserstellventileinrich, whereby an undesirable heat input in the service water valve body device can be completely suppressed.

The term "indirectly" describes in the context of the invention, a technical connection between the service water control valve device and the Heizwasserstellventileinrich device using at least one technical device, which thermally isolating effects causes.

Cumulatively or alternatively, it is advantageous if the active composite has at least one area reduced in cross-section in order to reduce heat transfer between the housings. These recesses can be realized by simple material recesses.

It is understood that the present transmission unit can also be configured differently. It should also be thought of hydraulic or pneumatic transmission or similar Lichem. Another very advantageous embodiment provides that the Heizwasserstellven tileinrichtung is actuated by a servomotor, the servomotor depending from the service water control valve device is operable.

By means of such a positioning motor, a spatial decoupling of the two housing parts of the flow rate regulator or a spatial decoupling of the service water adjusting valve device and the heating water control valve device from one another can also be supported very simply, advantageously even without an additional gear unit or the like.

Preferably, the servomotor is designed as an electric servomotor. But also electrical cal stepping motors are suitable as a servomotor for use in the present flow rate controller.

The present object is insofar according to a second aspect of the invention by a flow rate controller for a service water circuit and a heating water circuit of a service water heater, with a Brauchwasserstellventileinrich device in a first housing part of the flow rate controller and with a Heizwas- serstellventileinrichtung in a further housing part of the flow rate controller ge triggers , wherein the Heizwasserstellventileinrichtung is actuated by means of Brauchwasserstellventilein direction, wherein the flow rate controller is characterized by an electrically be exaggerated servo motor, by means of which the Heizwasserstellventileinrichtung is control or control technology operable. Another possibility of a thermally isolated control of Strömungsmengenreg amplifier provides an electrically operated servomotor, as by a servo motor Heizwassersteuerkolben the Heizwasserstellventileinrichtung is actuated without a physical connection to a service water control piston Brauchwasserven tileinrichtung must exist, as in the prior art yet must be the case through an actuation control element.

In this respect, thermal insulation in the sense of the invention can be improved by a suitable servo motor. Furthermore, such a servomotor provides much greater freedom in a constructive configuration of the flow rate regulator, since a service water control piston and a Heizwassersteuerkolben no longer need to be on the same axis of operation of a common Betätigungsstangenelements, not even close, as has been the case in the prior art but still ,

Thus, in a preferred embodiment, it is also advantageous if the service water control valve means comprises a dhw control piston shift axis along which the service water control spool is slidable and the hot water control valve means has a hot water control spool displacement axis for which the hot water control spool is slidable, the service water control spool displacement axis and the hot water control spool displacement axis being different are. Only for example, the displacement axes can be arranged parallel to each other, ent neither arranged one above the other or one behind the other.

Anyway arise through the use of a servomotor for the Heizwasserstell valve device diverse structural options for the flow rate controller.

It should be mentioned at this point that the terms "control" and "rules" are used interchangeably for the purposes of the invention.

Here, for example, a low-voltage motor is sufficient to lead a valve control in particular a Heizwassersteuerkolbens Heizwasserstellventileinrichtung.

This servo motor can also be partially or completely outside the housing, the service water valve device and Heizwasserventileinrichtung mounted.

The essential task of the servomotor can be used in the control and regulation of the heating water valve device relative to the retrieved consumption of hot water to a Zapfstelle or relative to the domestic water valve device can be seen.

As mentioned above, this servomotor can be regarded as a thermal insulator, in the sense that the actuation of the servomotor, predetermined by the requested domestic water quantity, is transmitted to the servomotor, for example by means of a data cable. Accordingly, there is only a minimal amount of components, here the data cable, to contact between the servomotor and the domestic water valve device and the housing containing the service water valve device. In addition to such a wired control, alternatively, a wireless control can be done when the corresponding components are provided.

Furthermore, if an electrical control and / or regulating device is provided for controlling or regulating an actuation of the heating water control valve device, in particular as a function of an actuation of the hot water control valve device, a mechanical operative connection between the hot water control valve device and the heating water control valve device can be dispensed with without difficulty.

Furthermore, a plurality of profiles with different characteristics can be deposited on such a control or regulating device, so that realized on a correspondingly equipped flow rate regulator degressive or progressive adjustment paths with respect to service water control piston and Heizwassersteuerkolben who can.

This control device allows the control of an operation of the Heizwasserstellventileinrichtung in various embodiments.

In particular, the named control and / or regulating device can control or regulate a servomotor named above. This control can be obtained by energizing with the service water control valve.

Likewise, the named control and / or regulating device can be any number control differently designed servomotors at different points in or on Strömungsmen genregler. Moreover, it is advantageous if a calibration device is provided for calibrating a position of the heating water control valve device, in particular a Heizwassersteuerkol- bens and / or electrically operated servomotor thereof, depending on a position of the hot water control valve device.

The calibration device is provided, for example, by a quantity of service water or service water volume flow called up at the service water valve device and can, in principle, be located on the housing of the heating water adjustment valve device. An exact position is not necessarily to be defined, since it is possible to set the heating water control valve device from different positions of the calibrating device.

The calibration device described above can also be controlled by the control and / or regulating device described above, or vice versa.

It should be explicitly described here that it is particularly advantageous in the context of the invention if the service water adjusting valve device and the heating water adjusting device are operatively connected to one another in terms of control or control by means of a common actuating rod element. In the present case is deliberately omitted a common actuating rod element, as is common practice in the art, as a result of this waiver a variety of benefits, such as a better thermal separation of service water control valve and Heizwasserstellventileinrichtung, a diversi gere arrangement of hot water control valve device and Heizwasserstellventilein- direction to each other, different characteristics with respect to adjustment especially on the Heizwasserstellventileinrichtung, or the like.

Possible contact-free active compounds have already been described above, and such a non-contact word compound can be obtained, for example, by one or more Actuators are made. This one servomotor or several servomotors can be controlled wirelessly, for example, by the named rule or control unit and control the Heizwasserstellventileinrichtung.

In order to be able to precisely determine an actuation of the service water valve device, in particular a displacement of a service water control piston, it is particularly expedient if the service water adjustment valve device comprises a detection unit for detecting a movement of a service water control piston, wherein the detection unit is adapted to a servomotor of the Heizwasserstellventileinrich device anzusteuem.

For example, a control of the servo motor takes place in that a corresponding signal with respect to a detection is sent to the control and / or regulating device. This detection unit may be implemented in several embodiments and mounted at multiple and / or different positions within the flow rate regulator and outside the flow rate regulator.

A possible detection unit may also be a commercially available volume flow device. This volumetric flow meter can detect the volume flow on a service water line of the service water circuit and / or on a service water line section of the flow rate controller. During an operating situation, this volume flow measuring device can send an operating signal to above-mentioned control and / or regulating device, whereby a regulation of the Heizwasserventileinrich device can be done. Another possible detection unit may be a mounted on the Brauchwasserstellventileinrich device switch. This switch is set when switching the service water valve device and allows a signal transmission to a servomotor or a control or regulating device. The object is achieved according to a third aspect of the invention by an actuating device for actuating a Heizwasserstellventileinrichtung a Strömungsmen genreglers in response to movement of a Brauchwasserstellventileinrich device, wherein the actuating device comprises at least one stretch-extending force transmission element and / or a gear unit, by means of which the service water control valve device and the Heizwasserstellventileinrichtung are operatively connected to each other.

If the actuating device comprises at least one extension of the force transmission element, a critical heat transfer can be considerably reduced, as already described above.

If the actuating device comprises a gear unit, a variety of gear and arrangement configurations can be implemented on a flow rate regulator.

Advantageous translation and arrangement configurations can already be realized if the transmission unit comprises at least two forces and / or moments transmitted components.

Particularly good thermal insulation properties can also be attributed in particular to the transmission unit, if the at least one transmission unit extends forces and / or the transmission unit comprises at least one component transmitting forces and / or torque with a thermal insulator.

For example, this component consists of a thermally poorly conductive insulation material, completely or partially, or this component has a thermally insulating coating. Also combinations of these are conceivable.

The object of the present invention is also achieved according to a further aspect of a method for operating a flow rate regulator, wherein a movement of a Heizwassersteuerkolbens Heizwasserstellventileinrichtung in Dependence on a movement of a service water control piston of a service water adjusting valve device is controlled, wherein the movement of the service water control piston is transmitted indirectly and thermally isolated to the Heizwassersteuerkolben. Advantageously, transmission of the movement of the service water control piston to the heating water control piston is no longer effected directly by means of a common actuating rod element, but rather only indirectly by means of a transmission unit or a servomotor, as already described in detail above. This alone already results in an improved thermal insulation in the context of the inven tion.

It is particularly advantageous if, independently of the other features of the inven tion, at least the Heizwasserstellventileinrichtung has a heating control piston made of a plastic material, in particular of polytetrafluoroethylene (PTFE). From this arises, cumulatively or alternatively, a thermal decoupling.

Also regardless of the existing features, a risk of contamination of the flow rate regulator can be reduced if, cumulatively or alternatively, at least parts of the surfaces, especially water contact surfaces, sliding surfaces or the like, of components of the flow rate controller coatings such as lubricious, non-stick and or corrosion coatings, such as Xylan © coatings 8110 / G0975 gray / black or the like.

Surfaces that are in direct use with service water and designed for this purpose may have certification in this respect and are used in this sense on the sanitary side of the flow rate controller.

In terms of another important aspect of the invention is given that other important components of the flow rate regulator are made of a plastic or plastic composite, for example, housing parts or the like.

Almost all technical plastics for drinking water technical or in heating applications, for example, the following materials may preferably be used, such as PVDF (polyvinylidene fluoride), PPSU (polyphenylsulfone), PSU (polysulfone) or the like.

It is understood that the above-mentioned materials do not represent a final Aufzäh development, but that in the future only still to be developed plastics or plastic compound include, from which a used in the present invention flow rate regulator is at least partially manufacturable.

Advantageously, a flow rate regulator up to 70% or 80%, preferably more than 90%, of plastic or plastic compound to achieve or enhance the present effects and advantages. It should also be remembered that a flow regulator can be made of a variety of different engineering plastics in order to further develop it in the sense of He invention.

These features are considered in isolation, so regardless of the other Wish paint of the present invention, to be considered inventive, since they can already develop advantageous generic flow regulator already for themselves.

It should be emphasized at this point that the aspects of the invention can be used alternatively or cumulatively, in order to realize the effects and advantages achieved thereby also bundled on a single flow rate regulator. Further features, effects and advantages of the present invention will be explained with reference to anlie gender drawing and the following description in which exemplarily un differently configured flow rate regulator are shown and described.

Components which in the individual figures at least substantially with respect match their function, this can be marked with the same reference numerals characterized, wherein the components must not be quantified and explained in all figures.

In the drawing show:

FIG. 1 shows schematically a view of a basic functional structure of a flow rate regulator with a service water control valve device in a service water control valve device housing, with a heating water control valve device in a heating water control valve device housing and with an actuating device for actuating the Heizwasserstellven tileinrichtung the flow rate controller in response to a BEWE movement of the service water control valve device;

Figure 2 schematically shows a view of an alternative flow rate regulator with egg ner gear unit comprising an actuating device, said transmission unit is characterized by a cable mechanism;

FIG. 3 schematically shows a view of a further flow rate regulator with an actuating device comprising a different gear unit, wherein this gear unit is characterized by a gearwheel mechanism;

Figure 4 shows schematically a view of another alternatively constructed flow rate regulator with an electrically operated servomotor comprehensive actuator; and

Figure 5 schematically shows a view of a flow amount controller comprising a loading actuating device with a very simple design Bowden cable unit.

According to the schematic representation according to FIG. 1, a flow rate regulator 1 designed in the sense of the invention is represented by its basic principle. The flow rate regulator 1 essentially has a service water actuating valve device 2 in a first housing part 3 of the flow rate regulator 1 and a heating water control valve device 4 in a second housing part 5 of the flow rate regulator 1.

As can be clearly seen, the two housing parts 3 and 5 are spatially separated, so that the two housing parts 3 and 5 are not physically in contact with each other in working. In this respect, a heat transfer from Heizwasserstellventileinrichtung 4, so the hot side of the flow rate controller 1 to the Brauchwasserstellventilein device 2, so the cold side of the flow rate controller 1, no longer possible, or if at all only negligibly low possible.

To the two housing parts 3 and 5 in the context of the invention sufficiently spaced voneinan the distance between the two housing parts 3 and 5 in this embodiment, a distance 8 of 50 mm.

The distance 8 is in this case formed material-free, which means that the two mutually facing ends 9 and 10 of the two housing parts 3 and 5 neither directly nor indirectly enter into a physical or material connection with each other.

However, material-free is not equivalent to component-free. In other words, this means that these ends 9 and 10 are not in con tact with each other, so that it is very well ensured that a risk of microbial contamination of the service water control valve device 2 can be avoided.

Rather, between the two housing parts 3 and 5 insofar an air gap 11, which in the present case can also be referred to as insulator gap. Depending on the design of the flow rate controller 1 but also a smaller or a larger distance 8 can be selected.

In any case, the two housing parts 3 and 5 are spatially separated from each other, so that a risk of microbial contamination of components 13 of the service water control valve device 2 is significantly reduced, in particular of components 13 which are in contact with service water at the service water control valve device 2.

Furthermore, the flow rate regulator 1 also comprises an actuating device 15 for actuating the heating water control valve device 4 as a function of a movement of the hot water control valve device 2.

This actuator 15 may be formed most diverse, as will be explained with respect to the other figures.

Preferably, the actuator 15, bypassing a rod member, in particular a rigid rod member, an operative connection between the custom wasserstellventileinrichtung 2 and the Heizwasserstellventileinrichtung 4 bewerkstelli conditions. The flow rate regulator 1 shown in particular in FIG 1 is part of a not shown here heating-hot water system 18 with the help of which in a building (not shown) at a tap, also not shown, requested service water is heated or heated using heating water of a heater. Thus, by means of the present flow rate regulator 1 as a function of egg ner requested at the tapping point amount of hot water a required amount of heating water through such a heat exchanger (not explicitly shown) of the heating-water system 18 passed through, that in this case the hot water through the Heating water can be heated or heated. Such heat exchangers are well known in the art. In this respect, the heating-service water system 18 is not further explained in this regard.

In general, the flow rate regulator 1 thus serves to control or regulate fluid volume flows, namely from a service water volume flow 19A and a Heizwasservolumenstrom 19B, the heating-service water system 2. At this point it should again be noted that the terms "taxes" and "rules" are used synonymously in the context of the present invention.

The flow rate regulator 1 is thus characterized essentially by the two control valve devices 2 and 4 and the actuator 15, the custom wasserstellventileinrichtung 2 with their hot water connections 22 and 23 in a process water circuit (not explicitly shown here and numbered) the heating-Brauchwas ser- Annex 18 is integrated, through which the hot water volume flow 3 flows. The hot water cycle is open here, as can be taken at taps hot water.

The Heizwasserstellventileinrichtung 4 is accordingly integrated with their Heizwasseranschlüssen 24 and 25 in a Heizwasserkreislauf (also not shown and explicitly numbered) the heating-service water system 18, in which ultimately the Heizwasswasservolumenstrom 19 B is circulated. In this respect, the Heizwasserkreislauf is closed.

Thus, the service water control valve device 2 of the sanitary side (not numbered) and the Heizwasserstellventileinrichtung 4 of the heating side (not numbered) of the heating hot water system 18 assigned.

The two housing parts 3 and 5 of the flow amount regulator 1 extend according to the schematic representation of Figure 1 along the central axis 26 of the flow volume regulator 1. Depending on how the actuator 15 is set up, however, each of the two housing parts 3 and 5 has its own Central axis 26 A and 26 B have, wel che different from each other are arranged in space.

The service water control valve device 2 has a service water channel 27 and the Heizstellventileinrichtung 4 corresponding to a Heizwasserkanal 28. The process water channel 27 can be closed or opened by means of a hot water control piston 30. The same applies to the heating water channel 28, which can be closed or opened with the aid of a heating water control piston 31.

In order now to control the service water volume flow 19A, which can flow through the service water adjustment valve device 2, the service water control piston 30 can be displaced axially within the service water control valve device 2 and thus transversely to the service water channel 27. The service water control piston 30 constitutes a service water measuring element (not explicitly numbered) within the meaning of the invention.

The hot water piston 30 is often referred to as sanitary control piston in connection with the flow rate regulator 1 a heating-service water system 18. Accordingly, the Heizstellventileinrichtung 4 comprises a Heizwassersteuerkol ben 31, often called heating control piston, by means of which a Heizungswas servolumenstrom 19 B is controllable.

The Heizwassersteuerkolben 31 is a Heizwassermessglied (not numbered again).

The service water control piston 30 and the heating water control piston 31 are operatively connected to one another via the actuating device 15.

In this exemplary embodiment, the service water regulating valve device 2 further comprises a working cylinder 32 with a cylindrical working cylinder housing 33, which is arranged on the first housing part 3 by means of a cover part 34.

The working cylinder 32 provides at the service water control valve device 9 a working space 35 for the service water control piston 30, in which the service water control piston 30 is arranged at least partially.

The working space 35 is in this case of the cylindrical cylinder housing 33, of the lid part 34 and bounded by the first housing part 11.

The service water control piston 30 is integrally formed, at least in this exemplary embodiment, but is functionally divided into an axially displaceable service water control element 36 and into a likewise axially displaceable separating element 37, whereby the separation element 37 separates the work space 35 into a service water control element - Receptacle 38 and on the other hand divided into a return element receiving space 39, in which a return element 40 for holding the Brauchwassersteuer- piston 30 is housed.

The return element 40 presses by means of its spring force specifically the Brauchwassersteu erkolben 30 axially to the right in its rest position, wherein the restoring element 40 is supported on the one hand on the separating element 37 and on the other hand on the cover part 34. In this rest position the service water control valve device 2 is closed. In other words, the return element 40 is clamped by means of the screw-on cover part 34 with respect to the separating element 37 and the service water control piston 30, in such a way that the service water control piston 30 is positioned in its rest position as long as no domestic hot water is requested at a tapping point and accordingly Also, no hot water volume flow 19A flows through the hot water control valve device 2.

However, as soon as 18 service water flows through the hot water control valve device 2 due to an actuated tapping point heating service water system 18, the service water control piston 30 moves against the spring force to the left in a control position (not shown), which is different from the rest position. The working space 35, in particular the restoring element receiving space 39, is fluidically connected to the service water channel 27 by means of a service water line section 41. As soon as hot water is requested at a tapping point and thereby a custom water flow 19A is initiated, this leads to a pressure drop in the return actuator receiving space 38, whereby the entire service water control piston 30 is displaced together with the separating element 37 against the spring force, which to the left Displacement continues until the separator 37 abuts against the inner head side of the lid part 34.

In this maximum control position of the service water control piston 30 then not only the hot water channel 27 is opened wide, but also the Heizwasserkanal 28, since the Heizwassersteuerkolben 31 and the service water control piston 30 by means of Be tätigungseinrichtung 15 are mechanically connected, so that the Heizwassersteuerkolben 31 always with the hot water piston 30 is dragged along.

According to the schematic illustration according to FIG. 2, an alternative flow rate regulator 101 is shown, which has essentially the same construction as the flow rate regulator 1 shown in FIG.

In order to avoid repetition, therefore, only the differences of the alternative flow quantity regulator 101 with respect to the flow rate regulator 1 from FIG. 1 are explained below. Otherwise, reference is made to the description of Figure 1. The alternative flow rate regulator 101 is characterized by a special Actuate supply device 115, which comprises a gear unit 150, which the custom wasserstellventileinrichtung 2 and the Heizwasserstellventileinrichtung 4 control or control technically effective together.

According to the embodiment of Figure 2, the transmission unit 150 comprises a not shown in detail rope mechanism by means of which movements of Brauchwassersteuerkol 30 can be transmitted indirectly to the Heizwassersteuerkolben 31.

By means of the proposed such a cable mechanism comprehensive gear unit 150 succeeds in addition to the spatial separation of the two housing parts 3 and 5 structurally simple Another very good thermal insulation of the service water control piston 30 and the Heizwassersteuerkolbens 31, and thereby an overall very good thermal insulation of the domestic hot water control valve device 2 of the Heizwasserstellventileinrich device. 4

In this respect, the gear unit 150 of the alternative flow quantity regulator 101 has at least one component which transmits forces and / or torque with a thermal isolator.

In this way, the thermally insulating effect of the gear unit 150 can be achieved, in particular, by cable element cross-sections which can be configured very thinly and, with a corresponding design, additionally by a selection of thermally well insulating materials. In this case, it is to be thought of components (not shown) made of plastic or the like of the gear unit 150, in particular of rope elements (not shown) relating thereto.

Another exemplary embodiment of a further alternative flow rate regulator 201 shows the schematic illustration according to FIG. 3.

The further alternative flow rate regulator 201 also has essentially the same structure as the flow rate regulator 1 shown in FIG. 1. In order to avoid repetition, only the differences of the alternative flow quantity regulator 201 with respect to the flow rate regulator 1 from FIG. Otherwise, reference is made to the descriptions of Figures 1 and 2 ver.

In any case, has the other alternative flow regulator 201 as Betätigungsein- device 215 an alternative gear unit 250 with a Getriebezahnradmechnik, with means which also very good thermal decoupling of the Brauchwasserstellven tileinrichtung 2 and the Heizwasserstellventileinrichtung 4 from each other, in particular the service water control piston 30 and the Heizwassersteuerkolbens 31 from each other ge lingt. In this exemplary embodiment, the toothed wheels consist of a thermally poorly conductive material, with the result that the alternative gear unit 250 has substantially better ther- mally insulating properties.

According to the illustration according to FIG. 4, yet another exemplary embodiment of the flow rate regulator 301 is shown, wherein the flow rate regulator 301 essentially has the same structure as the flow volume regulator 1 shown in FIG.

In order to avoid repetition here, therefore, only the Un differences of the alternative flow rate regulator 301 are compared to the rules genome Strömungsmen 1 of Figures 1, 2 and 3 explained below. Otherwise, reference is made to the description of Figures 1, 2 and 3 respectively.

The flow rate regulator 301 is characterized in particular by another Be tätigungseinrichtung 315, which comprises a servo motor 360 which is at least electrically operated in this embodiment according to the figure 4.

Namely, the positioning motor 360 is driven so that the positioning motor 360 is operated in response to a movement of the service water control piston 30.

For this purpose, the actuating device 315 comprises a detection unit 361 for detecting a movement of the service water control piston 30.

In this embodiment, the detection unit 361 and the positioning motor 360 are electrically connected to each other by means of a data bus system 362, so that a detected movement of the service water control piston 30 to detection sensors 363 of the detection unit 361 initiates an action on the positioning motor 360, whereby the heating water control piston 31 moves accordingly can be.

Actuator 315 further includes an electrical control and / or Control device 364 for controlling or regulating an actuation of the Heizwasserstellven tileinrichtung 4, in particular in response to an actuation of the service water control valve device. 2

By means of the control and / or regulating device 364, characteristic curves can optionally be set on the actuating device 315.

In order to adjust the flow rate regulator 301 precisely, the Actuate supply device 315 in this embodiment also has a Kalibrierein direction 365 for calibrating a position of Heizwasserstellventileinrichtung 4, in particular the Heizwassersteuerkolbens 31 and / or the electrically operated Stellmo sector 360, depending on a position of the service water control valve device. 2

Another alternative flow rate regulator 401 is shown in FIG. 5.

This further alternative flow rate regulator 401 also essentially has a service water control valve device 2 with a first housing part 3 and a heating water control valve device 4 with a second housing part 5. Since the custom wasserstellventileinrichtung 2 and the Heizwasserstellventileinrichtung 4 have already been explained before standing, will be omitted here again to a detailed detailed description Be.

In any case, the two housing parts 3 and 5 are spatially separated from each other, so that they are not physically in operative contact with each other. In this respect, this is already a heat transfer from the Heizwasserstellventileinrichtung 4, so the hot side of the white alternative flow controller 1 to the service water control valve device 2, so the cold side of the other alternative flow rate controller 1, not or hardly possible.

In addition to this, the further alternative flow rate regulator 401 has a distance-extending actuator 415 with a stretch-extending force Transmission element 470 in order to significantly reduce a possible heat transfer with respect to the actuating device 415 between the Heizwasserstellventileinrichtung 4 and the DHW valve device 2.

The lengthening actuating device 415 or the lengthening force transmission element 470 have a shape deviating from a straight line, so that a distance 471, along a component-related heat transfer between Heizwasserstellventileinrichtung 4 and the service water control valve device 2 can take place significantly extended, thereby increasing the risk of undesirable or critical heat transfer at the actuator 415 can be significantly reduced.

For this purpose, the distance-extending actuating device 415 again has a cable mechanism (not numbered separately), but this time in the form of a Bowden cable unit 472.

In this case, the Bowden cable unit 472 extends from an outer side 473 of the service water control valve device 2 to an outer side facing away from the outer side 474 of the heating water control valve device 4.

Here, the two outer sides 473 and 474 are arranged facing away from each other, in contrast to the facing end 9 and 10 (inner sides) of the two Stellventilein directions 3 and 4.

The Bowden cable unit 472 comprises a cable element 475 which extends from the water control piston 30 to the heating water control piston 31 or is mechanically operatively connected thereto, and a jacket element 476, from which the cable element 475 is supported laterally.

The cable element 475 and the jacket member 476 hereby denote the actual bow denzug 477 of the Bowden cable unit 472, wherein the cable member 475 is supported by the man telelement 476 especially laterally very well, so that not only tensile forces, but also compressive forces or shear forces with the cable element 475 be transferred can.

By means of such a Bowden cable unit 472, the control pistons 30 and 31 of the further alternative flow quantity regulator 401 can interact with one another in a heat-insulating manner, whereby the risk of undesirable heat transfer is further reduced.

In this case, the extension-lengthening actuating device 415 has at least four cam sections 478 (numbered only by way of example) into which the track-extending force-transmitting element 470 is bent.

In this respect, in particular the track-extending force transmission element 470 has a shape deviating from a straight line and / or a longitudinal axis 26.

At this point, it should again be expressly pointed out that the features of the solutions described above or in the claims and / or figures can optionally also be combined in order to be able to implement or achieve the features, effects and advantages of the invention in a cumulative manner.

It is understood that the exemplary embodiments shown in the drawing are only first embodiments of the flow quantity regulator according to the invention or components or component groups thereof. In this respect, the embodiment of the invention is not restricted to these exemplary embodiments.

All features disclosed in the application documents are claimed to be essential in terms of the invention if they are novel individually or in combination with respect to the prior art.

List of reference numbers used:

1 flow regulator

2 service water control valve device

3 first housing part

4 Heizwasserstellventileinrichtung

5 second housing part

8 distance

9 first facing end of the hot water control valve device

10 second end facing the Heizwasserstellventileinrichtung

11 air gap

13 components

15 actuator

18 heating-water plant

19A domestic water volume flow

19B heating water volume flow

22 first service water connection

23 second service water connection

24 first heating water connection

25 second heating water connection

26 central axis

26A central axis of the service water control valve device

26B center axis of Heizwasserstellventileinrichtung

27 service water canal

28 heating water channel

30 service water control piston

31 heating water control piston

32 working cylinders

33 working cylinder housing

34 cover part working space

Water control

separating element

Domestic water control receiving room

Reset ele- ment receiving space

Reset element

Water line section

Flow rate regulator

actuator

gear unit

Flow rate regulator

actuator

gear unit

Flow rate regulator

actuator

servomotor

detecting

data bus system

D etekti he sensors

Control and / or regulating device

calibration

Flow rate regulator

actuator

track-extending force transmission element or heat-conducting element route

Bank unit

outside opposite outside rope element

Sheath element Bowden cable

curve sections

Claims

claims:

A flow rate regulator (1; 101; 201; 301; 401) for a service water circuit and a heating water circuit of a service water heating system (18), with a service water control valve device (2) in a first housing part (3) of the flow rate regulator (1; 201, 301) and with a Heizwasserstellventileinrich device (4) in a further housing part (5) of the flow rate regulator (1, 101, 201, 301), wherein the Heizwasserstellventileinrichtung (4) by an actuating device (15, 115, 215, 315; 415) by means of the service water control valve device (2) is actuated, characterized in that the two housing parts (3, 5) are arranged spatially separated from each other and / or the Betätigungseinrich device (15; 115; 215; 315; 415) element a Streckenverlängerndes Übertragungsübertragungsele ( 470).

2. flow rate regulator (1; 101; 201; 301; 401) according to claim 1, characterized in that the two housing parts (3, 5) with a distance (8) voneinan are arranged separately, wherein the distance (8) free of material is trained.

3. flow rate regulator (1; 101; 201; 301; 401) according to claim 1 or 2, characterized in that the stretch-extending force transmission element (470) is at least partially designed heat-insulating.

4. flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

3, characterized in that the actuating device (15; 115; 215; 315) has a shape deviating from a straight line and / or a longitudinal axis (26, 26A, 26B).

5. flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

4, characterized in that the actuating device (15; 115; 215; 315) comprises a cable mechanism, in particular a Bowden cable unit (472), by means of which control piston (30, 31) of the service water control valve device (2) and the Heizwasserstellventileinrichtung (4) operatively connected to each other are.

6. flow rate regulator (1; 101; 201; 301; 401) according to claim 5, characterized in that the control piston (30, 31) by means of the cable mechanism can be pulled and / or pushed.

7. flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

6, characterized in that the actuating device (15, 115, 215, 315) on opposite sides (473, 474) of the Brauchwasserstellventileinrich device (2) and the Heizwasserstellventileinrichtung (4) with control piston (30, 31) of the service water control valve device (2) and the Heizwasserstellventileinrichtung (4) are operatively connected.

8. flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

7, characterized in that the service water control valve device (2) and the Heizwasserstellventileinrichtung (4) by means of a gear unit (150; 250) control or control technically operatively connected to each other, in particular at least one forces and / or moments transmitted component of Gear unit (150; 250) comprises a thermal insulator.

9. flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

8, characterized in that the Heizwasserstellventileinrichtung (4) with the interposition of a thermal insulator indirectly by the service water actuator valve device (2) is actuated.

10. flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

9, characterized in that the Heizwasserstellventileinrichtung (4) by ei NEN servo motor (360) is actuated, wherein the servomotor (360) in dependence on the service water control valve device (2) is operable.

11. Flow rate controller (1; 101; 201; 301; 401) for a domestic water circuit and a heating water circuit of a domestic water heating system, with a A service water regulating valve device (2) in a first housing part (3) of the flow quantity regulator (1; 101; 201; 301; 401) and with a heating water adjustment device (4) in a further housing part (5) of the flow rate regulator (1; 101; 201; 301, 401), wherein the Heizwasserstellventileinrichtung (4) by means of the service water control valve device (2) is operable, characterized by an electrically operated servomotor (360), by means of which the Heizwasserstellventi leinrichtung (4) control or control technology is actuated.

12. flow rate regulator (1; 101; 201; 301; 401) according to claim 11, characterized by an electrical control and / or regulating device (364) for controlling or regulating an actuation of the Heizwasserstellventileinrichtung (4), in particular in response to a Actuation of the service water control valve device (2).

13. flow rate regulator (1; 101; 201; 301; 401) according to claim 11 or 12, characterized by a calibration device (365) for calibrating a position of the Heizwasserstellventileinrichtung (4), in particular a Heizwassersteuerkol bene (31) and / or electrically operated servomotor (360) thereof, depending on a position of the service water control valve device (2).

14. Flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

13, characterized in that the service water control valve device (2) and the Heizwasserstellventileinrichtung (4), bypassing a common loading tätigungsstangenelements control or control technology are connected to each other operatively.

15. flow rate regulator (1; 101; 201; 301; 401) according to one of claims 1 to

14, characterized in that the service water control valve device (2) comprises a detection unit (361) for detecting a movement of a service water control piston (30), wherein the detection unit (361) is adapted to control a control motor (360) of the heating water control valve device (4).

16. Actuation device (15; 115; 215; 315; 415) for actuating a heating water adjusting valve device (4) of a flow rate regulator (1; 10, 20l; 30l; 40l) in response to a movement of a service water adjusting valve device (2), characterized in that the actuation device (15; 115; 215; 315) comprises at least one extension-length force transmission element and / or one transmission unit (150; 250) by means of which the service water valve device (2) and the heating water control valve device (4) are interconnected with each other.

17. Actuating device (15; 115; 215; 315) according to claim 11, characterized in that the at least one track-extending forcesübertragungsele element and / or the gear unit (150; 250) elements at least one forces and / or Mo transmitted component with a thermal insulator includes.

18. A method for operating a flow rate regulator (1; 101; 201; 301; 401) in which a movement of a Heizwassersteuerkolbens (31) Heizwas serstellventileinrichtung (4) in response to a movement of a custom wassersteuerkolbens (30) a hot water control valve device (2) is controlled, characterized in that the movement of the Brauchwassersteuerkol bens (30) is indirectly transmitted to the Heizwassersteuerkolben (31).