EP0359901B1 - Mixing device for a hot water heating installation - Google Patents

Mixing device for a hot water heating installation Download PDF

Info

Publication number
EP0359901B1
EP0359901B1 EP89106958A EP89106958A EP0359901B1 EP 0359901 B1 EP0359901 B1 EP 0359901B1 EP 89106958 A EP89106958 A EP 89106958A EP 89106958 A EP89106958 A EP 89106958A EP 0359901 B1 EP0359901 B1 EP 0359901B1
Authority
EP
European Patent Office
Prior art keywords
mixer
valve
mixing device
hot water
heating
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.)
Expired - Lifetime
Application number
EP89106958A
Other languages
German (de)
French (fr)
Other versions
EP0359901A1 (en
Inventor
Günter Naasner
Günter Strelow
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.)
Wilo GmbH
Original Assignee
Wilo Werk GmbH and Co
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 Wilo Werk GmbH and Co filed Critical Wilo Werk GmbH and Co
Priority to AT89106958T priority Critical patent/ATE68048T1/en
Publication of EP0359901A1 publication Critical patent/EP0359901A1/en
Application granted granted Critical
Publication of EP0359901B1 publication Critical patent/EP0359901B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F04D15/0033—By-passing by increasing clearance between impeller and its casing

Definitions

  • the invention relates to a mixing device for a hot water heating system with a mixing valve having a rotary valve mixing chamber, which is connected to the lines of the boiler flow and return as well as the heating flow and return, depending on the position of the rotary valve of the mixer, the heating flow and the boiler return a more or less warm mixture of the boiler flow and the heating return is supplied by a pump, whereby heating water is fed to a hot water tank (see NL-A-6711733) and a valve is arranged in the heating flow, which branches off the heating water for the hot water tank.
  • the object of the invention is to provide a mixing device for a hot water heating system of the type mentioned, which requires only one pump and only one servomotor.
  • the device Due to the non-positive and / or positive connection of the actuators from the mixer and the valve, all functional positions can be achieved by a single servomotor, i.e. in addition to the servomotor of the mixer, a further servomotor is not required, but that of the mixer simultaneously actuates the valve actuator that the heating water leads to the hot water tank. It is particularly advantageous that, due to the coupling of the two actuators, they always assume corresponding positions, so that a malfunction is prevented with the greatest possible certainty.
  • the device is structurally simple and of small external dimensions.
  • a particularly simple construction is achieved if the actuator of the valve is made in one piece with the rotary slide valve of the mixer. This too will proposed that the actuator of the valve is arranged coaxially with the rotary valve of the mixer. For this purpose, the mixer and valve should also be arranged in the same housing.
  • valve completely closes the line to the heating circuit when the line to the hot water tank is opened. It is also proposed that when the line to the hot water tank is opened, the valve of the mixer separates the boiler flow from the boiler return and the boiler flow is connected to the hot water tank inlet via the pump. This ensures that the heating circuit is completely separated from the boiler circuit when the hot water tank is supplied with heating water.
  • the mixer can optionally be used as a three-way and four-way mixer
  • the mixer be bridged by a lockable bypass that connects the boiler return to the heating return and during this connection separates the boiler return from the mixing chamber of the mixer. This makes it possible to obtain a three-way or four-way mixer by blocking the bypass or the connecting line without having to make any modifications.
  • the same housing can therefore be used for both types of mixer.
  • the mixer is bridged by a lockable bypass that connects the heating return with the heating flow. This can ensure that the control range of the mixer is not too small in the case of large temperature differences between the boiler circuit and the heating circuit.
  • shut-off valve of the bypass can be arranged in the housing of the mixer.
  • the housing of the mixer is disc-shaped.
  • the housing of the mixer can be fastened with a flat side to a flat side of the pump, so that a sandwich-like construction can be achieved which continues the teaching according to German Offenlegungsschrift 3624917. It is also advantageous here if the inlets and outlets open into the flat sides of the pump and mixing housing and are aligned with one another.
  • a particularly safe mixing device that is easy to control by the servomotor is created when the working positions of the rotary valve and the valve actuator are divided into 60 degree steps.
  • the device is particularly advantageous in terms of its construction, assembly and maintenance if the pumps are attached to one side of the mixer housing and the actuator of the mixer is attached to the opposite side.
  • An impeller (not shown), which is driven by a canned motor 2, runs in a pump housing 1.
  • the pump housing side wall 3 facing away from the motor 2 is perpendicular to the impeller axis and has in the side wall surface both an inlet opening 4 coaxial with the impeller axis and an outlet opening 5 laterally offset from it.
  • a disk-shaped housing 6 is fastened with a flat side wall 7, which has an outlet opening 8 and an inlet opening, the opening 8 being aligned with the inlet opening 4 and the inlet opening 9 being aligned with the outlet opening 5.
  • the mixer housing 6 thus only needs to be fastened with the side wall 7 to the side wall 3 of the pump housing 1 in order to obtain all the necessary connections.
  • the mixer housing 6 has a second vertical side wall 10 on the side facing away from the pump, which is parallel to the side wall 7 and exits at the axis ends in order to actuate the mixer.
  • the actuator of the mixer is also attached to this side wall 10.
  • the axis 11 actuated by the mixer motor carries within the housing 6 the mixer rotary valve 12, which can assume three positions. In the position shown in FIG. 2, it connects the boiler circuit to the heating circuit, so that the boiler flow KV is connected to the heating flow HV via one half of the mixing chamber 13 and the pump 1 and also via a valve 14.
  • the heating return HR is connected to the boiler return KR via the other half of the mixing chamber 13, so that the heating circuit is supplied with heating water in the vertical rotary position of the slide 12 shown in FIG.
  • the valve actuator 12a of the valve 14 is integrally formed on the side of the rotary valve 12 opposite the axis 11 and represents a three-way valve.
  • the valve actuator 12a is therefore always rotated with the rotary valve 12 and can therefore, like the rotary valve 12, three by approximately Take 60 degrees in different rotary positions.
  • the chamber 14a of the valve 14, which contains the actuator 12a, is located next to the mixing chamber 13 within the mixer housing 6 closer to the pump housing 1 than the chamber 13 and is connected via a housing line 15 to the heating flow HV and via a housing line 16 to the flow of the hot water tank, whereby the actuator 12a is tubular and the interior of the actuator 12a and thus the chamber 14a is located directly next to the outlet opening of the pump 1 and the inlet opening 9 of the mixer housing 6, so that the interior of the pump is supplied with heating water from the boiler flow.
  • the thickness or width of the disk of the mixer housing 6 is chosen so large that the lines leading to the mixing chamber 13 and to the chamber 14a can lie side by side.
  • the heating circuit is connected to the boiler circuit. Furthermore, in this position the actuator 12a is in a rotational position in which it connects the chamber 14a to the line 15 and thus to the heating flow. If the rotary valve 12 is rotated from position I by about 60 degrees to position II (FIG. 2) by the servomotor, the mixer is closed and the heating circuit and boiler circuit are separated from one another and the chamber 14a is still connected to line 15. Between positions I and II, the rotary valve can take on numerous intermediate positions to connect the heating circuit and boiler circuit more or less as is usual with a heating mixer.
  • rotary valve 12 If the rotary valve 12 is moved from position III by a further 60 degrees to position IV, a position similar to position I is reached, which is shown in FIG.
  • the rotary valve 12 is in a position different from position I by 180 degrees, so that the actuator 12a connects the chamber 14a with the Line 16 connects and the boiler flow is connected to the hot water circuit via the pump.
  • the heating water thus flows to the hot water tank, passes through the heat exchanger and flows back to the boiler return via a line, not shown.
  • the mixing chamber 13 is bridged by a lateral bypass 17, which is closed by a rotary slide valve 18 when the mixer is to work as a four-way mixer. If, on the other hand, the rotary valve is actuated so that the bypass 17 is opened and the connection between the boiler return and the mixing chamber 13 is closed, the four-way mixer becomes a three-way mixer.
  • the rotary valve 18 can be actuated by an actuating axis 19 protruding from the side wall 10.
  • a third rotary valve 20 is arranged above the rotary valve 12, through which the heating return and heating flow can be connected.
  • This rotary slide valve 20 is also changed over to its two positions “open” and “closed” by an axis 21 protruding from the side wall 10. This makes it possible to increase the angle of rotation required for mixing when there are large temperature differences between the boiler circuit and the heating circuit and thus to increase the control room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Multiple-Way Valves (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The invention relates to a mixing device for a hot water heating installation having a mixing chamber 13 of a mixer, which mixing chamber has a rotary slide valve 12 and is connected to the piping of the boiler inlet KV and the boiler outlet KR as well as of the heating inlet HV and the heating outlet HR, a more or less hot mixture from the boiler inlet and the heating outlet being fed by a pump 1 to the heating inlet HV and the boiler outlet KR depending on the position of the rotary slide valve 12 of the mixer, hot water being fed to a hot water storage tank and a valve 14 being arranged in the heating inlet HV, which valve branches off the hot water for the hot water storage tank, the actuator 12a of the valve 14 being connected non-positively and/or positively to the rotary slide valve 12 of the mixer.

Description

Die Erfindung betrifft eine Mischvorrichtung für eine Warmwasserheizungsanlage mit einer einen Drehschieber aufweisenden Mischkammer eines Mischers, die mit den Leitungen des Kesselvor- und -rücklaufs als auch des Heizungsvor- und rücklaufs verbunden ist, wobei je nach Stellung des Drehschiebers des Mischers dem Heizungsvorlauf und dem Kesselrücklauf ein mehr oder weniger warmes Gemisch aus dem Kesselvorlauf und dem Heizungsrücklauf durch eine Pumpe zugeführt wird, wobei Heizwasser einem Warmwasserspeicher zugeführt wird (siehe die NL-A-6711733) und im Heizungsvorlauf ein Ventil angeordnet ist, das das Heizwasser für den Warmwasserspeicher abzweigt.The invention relates to a mixing device for a hot water heating system with a mixing valve having a rotary valve mixing chamber, which is connected to the lines of the boiler flow and return as well as the heating flow and return, depending on the position of the rotary valve of the mixer, the heating flow and the boiler return a more or less warm mixture of the boiler flow and the heating return is supplied by a pump, whereby heating water is fed to a hot water tank (see NL-A-6711733) and a valve is arranged in the heating flow, which branches off the heating water for the hot water tank.

Bei diesen bekannten Warmwasserheizungsanlagen ist für den Heizungskreis und den Warmwasserkreis jeweils eine Pumpe erforderlich.In these known hot water heating systems, a pump is required for the heating circuit and the hot water circuit.

Es ist ansich bekannt, den Vorlauf des Warmwasserkreises vom Heizungsvorlauf durch ein Drei-Wege-Ventil abzuzweigen, aber in diesem Fall benötigt das zusätzliche Ventil einen Stellmotor, so daß zwar die zweite Pumpe wegfällt aber dafür zwei Stellmotoren erforderlich sind.It is known per se that the advance of the To branch off the hot water circuit from the heating flow through a three-way valve, but in this case the additional valve requires a servomotor, so that the second pump is eliminated, but two servomotors are required.

Aufgabe der Erfindung ist es eine Mischvorrichtung für eine Warmwasserheizungsanlage der eingangs genannten Art zu schaffen, die nur eine Pumpe und nur einen Stellmotor benötigt.The object of the invention is to provide a mixing device for a hot water heating system of the type mentioned, which requires only one pump and only one servomotor.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Stellglied des Ventils mit dem Drehschieber des Mischers kraft- und/oder formschlüssig verbunden ist.This object is achieved in that the actuator of the valve is non-positively and / or positively connected to the rotary valve of the mixer.

Durch die kraft- und/oder formschlüssige Verbindung der Stellglieder vom Mischer und vom Ventil können alle Funktionsstellungen durch einen einzigen Stellmotor erreicht werden, d.h. es ist zusätzlich zum Stellmotor des Mischers ein weiterer Stellmotor nicht erforderlich, sondern der des Mischers betätigt gleichzeitig das Stellglied des Ventils, daß das Heizwasser zum Warmwasserspeicher führt. Hierbei ist besonders vorteilhaft, daß aufgrund der Kopplung beider Stellglieder, diese stets einander entsprechende Stellungen einnehmen, so daß eine Fehlfunktion mit größter Sicherheit verhindert wird. Hierbei ist die Vorrichtung konstruktiv einfach und von kleinen Außenabmessungen.Due to the non-positive and / or positive connection of the actuators from the mixer and the valve, all functional positions can be achieved by a single servomotor, i.e. in addition to the servomotor of the mixer, a further servomotor is not required, but that of the mixer simultaneously actuates the valve actuator that the heating water leads to the hot water tank. It is particularly advantageous that, due to the coupling of the two actuators, they always assume corresponding positions, so that a malfunction is prevented with the greatest possible certainty. Here, the device is structurally simple and of small external dimensions.

Eine besonders einfache Konstruktion wird dann erreicht, wenn das Stellglied des Ventils mit dem Drehschieber des Mischers einteilig ausgeführt ist. Auch wird hierzu vorgeschlagen, daß das Stellglied des Ventils mit dem Drehschieber des Mischers koaxial angeordnet ist. Ferner sollten hierzu Mischer und Ventil im selben Gehäuse angeordnet sein.A particularly simple construction is achieved if the actuator of the valve is made in one piece with the rotary slide valve of the mixer. This too will proposed that the actuator of the valve is arranged coaxially with the rotary valve of the mixer. For this purpose, the mixer and valve should also be arranged in the same housing.

Vorzugsweise wird vorgeschlagen, daß das Ventil bei Öffnung der Leitung zum Warmwasserspeicher die Leitung zum Heizungskreis vollständig schließt. Auch wird vorgeschlagen, daß bei Öffnung der Leitung zum Warmwasserspeicher durch das Ventil der Drehschieber des Mischers den Kesselvorlauf vom Kesselrücklauf trennt und den Kesselvorlauf über die Pumpe mit dem Warmwasserspeichereingang verbunden ist. Hierdurch ist sicher gestellt, daß bei Belieferung des Warmwasserspeichers mit Heizwasser der Heizungskreis vom Kesselkreis vollständig getrennt ist.It is preferably proposed that the valve completely closes the line to the heating circuit when the line to the hot water tank is opened. It is also proposed that when the line to the hot water tank is opened, the valve of the mixer separates the boiler flow from the boiler return and the boiler flow is connected to the hot water tank inlet via the pump. This ensures that the heating circuit is completely separated from the boiler circuit when the hot water tank is supplied with heating water.

Damit der Mischer wahlweise als Drei-Wege- und Vier-Wege-Mischer verwendbar ist wird vorgeschlagen, daß der Mischer von einem absperrbaren Bypass überbrückt ist, der den Kesselrücklauf mit dem Heizungsrücklauf verbindet und während dieser Verbindung den Kesselrücklauf von der Mischkammer des Mischers trennt. Hierdurch wird es möglich, durch Sperren des Bypasses oder der Verbindungsleitung, einen Drei-Wege- oder Vier-Wege-Mischer zu erhalten, ohne irgendeinen Umbau vornehmen zu müssen. Dasselbe Gehäuse ist damit für beide Mischerarten verwendbar.So that the mixer can optionally be used as a three-way and four-way mixer, it is proposed that the mixer be bridged by a lockable bypass that connects the boiler return to the heating return and during this connection separates the boiler return from the mixing chamber of the mixer. This makes it possible to obtain a three-way or four-way mixer by blocking the bypass or the connecting line without having to make any modifications. The same housing can therefore be used for both types of mixer.

Besonders vorteilhaft ist es auch, wenn der Mischer von einem absperrbaren Bypass überbrückt ist, der den Heizungsrücklauf mit dem Heizungsvorlauf verbindet. Hierdurch kann dafür gesorgt werden, daß bei großen Temperaturunterschieden zwischen dem Kesselkreis und dem Heizkreis, der Regelbereich des Mischers nicht zu klein ist.It is also particularly advantageous if the mixer is bridged by a lockable bypass that connects the heating return with the heating flow. This can ensure that the control range of the mixer is not too small in the case of large temperature differences between the boiler circuit and the heating circuit.

Hierbei kann das Sperrventil des Bypasses im Gehäuse des Mischers angeordnet sein.In this case, the shut-off valve of the bypass can be arranged in the housing of the mixer.

Eine besonders kleine Bauweise bei einfachster Montage wird dann erreicht, wenn das Gehäuse des Mischers scheibenförmig ist. Hierbei kann das Gehäuse des Mischers mit einer Flachseite an einer Flachseite der Pumpe befestigt ist, so daß eine sandwichähnliche Bauweise erreichbar ist, die die Lehre nach der deutschen Offenlegungsschrift 3624917 fortführt. Hierbei ist auch von Vorteil, wenn in den aneinanderliegenden Flachseiten von Pumpen- und Mischgehäuse die Ein- und Auslässe münden und miteinander fluchten.A particularly small construction with simple assembly is achieved if the housing of the mixer is disc-shaped. In this case, the housing of the mixer can be fastened with a flat side to a flat side of the pump, so that a sandwich-like construction can be achieved which continues the teaching according to German Offenlegungsschrift 3624917. It is also advantageous here if the inlets and outlets open into the flat sides of the pump and mixing housing and are aligned with one another.

Um zu verhindern, daß beim Umschalten vom Heizungskreis zum Warmwasserkreis eine Warmwassermenge in den Heizungskreis unbeabsichtigt kurzzeitig hineinströmmt, wird vorgeschlagen, daß bei Verbindung des Kesselvorlaufs mit dem Warmwasserspeicher der Kesselvorlauf vom Heizungsvorlauf durch das Ventil getrennt ist. Hierzu wird auch vorgeschlagen, daß vor der Verbindung des Kesselvorlaufs mit dem Warmwasserspeicher das Ventil völlig geschlossen ist.To prevent a quantity of hot water from unintentionally flowing into the heating circuit when switching from the heating circuit to the hot water circuit, it is proposed that when connecting the boiler flow to the hot water tank, the boiler flow is separated from the heating flow by the valve. For this purpose, it is also proposed that the valve be completely closed before connecting the boiler flow to the hot water tank.

Eine besonders sichere und durch den Stellmotor einfach zu steuernde Mischvorrichtung wird dann geschaffen, wenn die Arbeitsstellungen des Drehschiebers und des Ventilstellgliedes in 60 Grad Stufen eingeteilt sind. Von der Konstruktion als auch von Montage und Wartung ist die Vorrichtung dann besonders vorteilhaft, wenn auf einer Seite des Mischergehäuses die Pumpen und auf der gegenüberliegenden Seite der Stellmotor des Mischers befestigt ist.A particularly safe mixing device that is easy to control by the servomotor is created when the working positions of the rotary valve and the valve actuator are divided into 60 degree steps. The device is particularly advantageous in terms of its construction, assembly and maintenance if the pumps are attached to one side of the mixer housing and the actuator of the mixer is attached to the opposite side.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben. Es zeigen

Figur 1
einen senkrechten Schnitt durch die Mischvorrichtung, wobei die Schnittebene durch die Drehachse des Drehschiebers verläuft,
Figur 2
einen Schnitt nach A-A in Figur 1 und
Figur 3
einen Schnitt nach B-B in Figur 1.

An embodiment of the invention is shown in the drawings and will be described in more detail below. Show it
Figure 1
a vertical section through the mixing device, the section plane running through the axis of rotation of the rotary valve,
Figure 2
a section along AA in Figure 1 and
Figure 3
a section according to BB in Figure 1.

In einem Pumpengehäuse 1 läuft ein nicht dargestelltes Laufrad, das durch einen Spaltrohrmotor 2 angetrieben ist. Die dem Motor 2 abgewandte Pumpengehäuseseitenwand 3 liegt rechtwinklig zur Laufradachse und besitzt in der Seitenwandfläche sowohl eine zur Laufradachse koaxiale Einlaßöffnung 4 als auch eine dazu seitlich versetzte Auslaßöffnung 5.An impeller (not shown), which is driven by a canned motor 2, runs in a pump housing 1. The pump housing side wall 3 facing away from the motor 2 is perpendicular to the impeller axis and has in the side wall surface both an inlet opening 4 coaxial with the impeller axis and an outlet opening 5 laterally offset from it.

An der Seitenwand 3 ist ein scheibenförmiges Gehäuse 6 mit einer flachen Seitenwand 7 befestigt, die eine Auslaßöffnung 8 und eine Einlaßöffnung aufweist, wobei die Öffnung 8 mit der Einlaßöffnung 4 fluchtet und die Einlaßöffnung 9 mit der Auslaßöffnung 5 fluchtet. Das Mischergehäuse 6 braucht somit mit der Seitenwand 7 nur an der Seitenwand 3 des Pumpengehäuses 1 befestigt zu werden um damit alle erforderlichen Anschlüsse zu erhalten. Das Mischergehäuse 6 weist auf der der Pumpe abgewandten Seite eine zweite senkrechte Seitenwand 10 auf, die zur Seitenwand 7 parallel ist und an der Achsenden austreten um den Mischer zu betätigen. So ist auch der Stellmotor des Mischers an dieser Seitenwand 10 befestigt.On the side wall 3, a disk-shaped housing 6 is fastened with a flat side wall 7, which has an outlet opening 8 and an inlet opening, the opening 8 being aligned with the inlet opening 4 and the inlet opening 9 being aligned with the outlet opening 5. The mixer housing 6 thus only needs to be fastened with the side wall 7 to the side wall 3 of the pump housing 1 in order to obtain all the necessary connections. The mixer housing 6 has a second vertical side wall 10 on the side facing away from the pump, which is parallel to the side wall 7 and exits at the axis ends in order to actuate the mixer. The actuator of the mixer is also attached to this side wall 10.

Die vom Mischermotor betätigte Achse 11 trägt innerhalb des Gehäuses 6 den Mischer-Drehschieber 12, der drei Stellungen einnehmen kann. In der in Figur 2 dargestellten Stellung verbindet er den Kesselkreis mit dem Heizungskreis, so daß der Kesselvorlauf KV über die eine Hälfte der Mischkammer 13 und die Pumpe 1 als auch über ein Ventil 14 mit dem Heizungsvorlauf HV verbunden ist. Über die andere Hälfte der Mischkammer 13 ist der Heizungsrücklauf HR mit dem Kesselrücklauf KR verbunden, so daß bei der in Figur 2 dargestellten senkrechten Drehstellung des Schiebers 12 der Heizungskreis mit Heizwasser versorgt wird.The axis 11 actuated by the mixer motor carries within the housing 6 the mixer rotary valve 12, which can assume three positions. In the position shown in FIG. 2, it connects the boiler circuit to the heating circuit, so that the boiler flow KV is connected to the heating flow HV via one half of the mixing chamber 13 and the pump 1 and also via a valve 14. The heating return HR is connected to the boiler return KR via the other half of the mixing chamber 13, so that the heating circuit is supplied with heating water in the vertical rotary position of the slide 12 shown in FIG.

Das Ventilstellglied 12a des Ventils 14 ist an der der Achse 11 gegenüberliegenden Seite des Drehschiebers 12 angeformt und stellt ein Drei-Wege-Ventil dar. Das Ventilstellglied 12a wird also stets mit dem Drehschieber 12 mit verdreht und kann damit wie der Drehschieber 12 drei um etwa 60 Grad verschiedene Drehstellungen einnehmen. Die das Stellglied 12a enthaltene Kammer 14a des Ventils 14 liegt neben der Mischkammer 13 innerhalb des Mischergehäuses 6 näher zum Pumpengehäuse 1 als die Kammer 13 und ist über eine Gehäuseleitung 15 mit dem Heizungsvorlauf HV und über eine Gehäuseleitung 16 mit dem Vorlauf des Warmwasserspeichers verbunden, wobei das Stellglied 12a rohrsektorförmig ausgebildet ist und das Innere des Stellglieds 12a und damit die Kammer 14a direkt neben der Auslaßöffnung der Pumpe 1 bzw. der Einlaßöffnung 9 des Mischergehäuses 6 liegt, so daß das Innere von der Pumpe aus mit Heizwasser vom Kesselvorlauf beliefert wird. Die Dicke bzw. Breite der Scheibe des Mischergehäuses 6 ist so groß gewählt, daß die zur Mischkammer 13 und zur Kammer 14a führenden Leitungen nebeneinander liegen können.The valve actuator 12a of the valve 14 is integrally formed on the side of the rotary valve 12 opposite the axis 11 and represents a three-way valve. The valve actuator 12a is therefore always rotated with the rotary valve 12 and can therefore, like the rotary valve 12, three by approximately Take 60 degrees in different rotary positions. The chamber 14a of the valve 14, which contains the actuator 12a, is located next to the mixing chamber 13 within the mixer housing 6 closer to the pump housing 1 than the chamber 13 and is connected via a housing line 15 to the heating flow HV and via a housing line 16 to the flow of the hot water tank, whereby the actuator 12a is tubular and the interior of the actuator 12a and thus the chamber 14a is located directly next to the outlet opening of the pump 1 and the inlet opening 9 of the mixer housing 6, so that the interior of the pump is supplied with heating water from the boiler flow. The thickness or width of the disk of the mixer housing 6 is chosen so large that the lines leading to the mixing chamber 13 and to the chamber 14a can lie side by side.

In der Drehstellung I des Drehschiebers 12 ist, wie oben beschrieben, der Heizungskreis zu dem Kesselkreis verbunden. Ferner befindet sich in dieser Stellung das Stellglied 12a in einer Drehstellung bei der es die Kammer 14a mit der Leitung 15 und damit mit dem Heizungsvorlauf verbindet. Wird der Drehschieber 12 aus der Stellung I um etwa 60 Grad in die Stellung II (Figur 2) durch den Stellmotor verdreht, so ist der Mischer geschlossen und Heizkreis und Kesselkreis sind voneinander getrennt und die Kammer 14a ist immer noch mit der Leitung 15 verbunden. Zwischen den Stellungen I und II kann der Drehschieber zahlreiche Zwischenstellungen einnehmen um Heizkreis und Kesselkreis mehr oder weniger miteinander zu verbinden wie dies bei einem Heizungsmischer üblich ist.In the rotary position I of the rotary valve 12, as described above, the heating circuit is connected to the boiler circuit. Furthermore, in this position the actuator 12a is in a rotational position in which it connects the chamber 14a to the line 15 and thus to the heating flow. If the rotary valve 12 is rotated from position I by about 60 degrees to position II (FIG. 2) by the servomotor, the mixer is closed and the heating circuit and boiler circuit are separated from one another and the chamber 14a is still connected to line 15. Between positions I and II, the rotary valve can take on numerous intermediate positions to connect the heating circuit and boiler circuit more or less as is usual with a heating mixer.

Wird der Drehschieber 12 um weitere 60 Grad in die Stellung III bewegt, so ist der Mischer ähnlich geschlossen wie in Stellung II aber das Stellglied 12a befindet sich nun auch in einer absolut geschlossenen Stellung, so daß die Kammer 14a weder eine Verbindung mit der Leitung 15 noch eine Verbindung mit der Leitung 16 hat. Diese Stellung III wird stets nur durchlaufen, wenn von einer Belieferung des Heizkreises zu einer Belieferung des Warmwasserkreises umgeschaltet werden soll. Die Stellung III sorgt dafür, daß bei einem solchen Umschalten kein Heißwasserschwall unbeabsichtigt beim Umschalten in den Heizkreislauf gelangt.If the rotary valve 12 is moved by a further 60 degrees to position III, the mixer is closed in a similar manner to that in position II but the actuator 12a is now also in an absolutely closed position, so that the chamber 14a is neither connected to the line 15 still has a connection to line 16. This position III is only run through if you want to switch from supplying the heating circuit to supplying the hot water circuit. Position III ensures that during such a switchover, no hot water surge unintentionally gets into the heating circuit when switching.

Wird der Drehschieber 12 aus der Stellung III um weitere 60 Grad in die Stellung IV bewegt, so ist eine ähnliche Stellung erreicht wie die Stellung I, die in Figur 2 dargestellt ist. Der Drehschieber 12 befindet sich aber in einer um 180 Grad verschiedenen Stellung zur Stellung I, so daß das Stellglied 12a die Kammer 14a mit der Leitung 16 verbindet und der Kesselvorlauf über die Pumpe mit dem Warmwasserkreis verbunden ist. Das Heizwasser fließt damit zum Warmwasserspeicher, durchläuft dort den Wärmetauscher und fließt zurück zum Kesselrücklauf über eine nicht dargestellt Leitung.If the rotary valve 12 is moved from position III by a further 60 degrees to position IV, a position similar to position I is reached, which is shown in FIG. The rotary valve 12 is in a position different from position I by 180 degrees, so that the actuator 12a connects the chamber 14a with the Line 16 connects and the boiler flow is connected to the hot water circuit via the pump. The heating water thus flows to the hot water tank, passes through the heat exchanger and flows back to the boiler return via a line, not shown.

Die Mischkammer 13 ist, wie in Figur 2 dargestellt, durch einen seitlichen Bypass 17 überbrückt, der durch einen Drehschieber 18 dann verschlossen ist, wenn der Mischer als Vier-Wege-Mischer arbeiten soll. Wird dagegen der Drehschieber so betätigt, daß der Bypass 17 geöffnet und die Verbindung zwischen Kesselrücklauf und Mischkammer 13 geschlossen wird, so wird aus dem Vier-Wege-Mischer ein Drei-Wege-Mischer. Der Drehschieber 18 ist durch eine aus der Seitenwand 10 vorragende Stellachse 19 betätigbar.As shown in FIG. 2, the mixing chamber 13 is bridged by a lateral bypass 17, which is closed by a rotary slide valve 18 when the mixer is to work as a four-way mixer. If, on the other hand, the rotary valve is actuated so that the bypass 17 is opened and the connection between the boiler return and the mixing chamber 13 is closed, the four-way mixer becomes a three-way mixer. The rotary valve 18 can be actuated by an actuating axis 19 protruding from the side wall 10.

Ferner ist oberhalb des Drehschiebers 12 ein dritter Drehschieber 20 angeordnet, durch den Heizungsrücklauf und Heizungsvorlauf verbindbar sind. Dieser Drehschieber 20 wird auch durch eine an der Seitenwand 10 vorstehende Achse 21 in seine beiden Stellungen "geöffnet" und "geschlossen" umgestellt. Hierdurch besteht die Möglichkeit bei großen Temperaturunterschieden zwischen Kesselkreis und Heizkreis den für das Mischen erforderlichen Drehwinkel zu vergrößern und damit die Regelgeräumigkeit zu erhöhen.Furthermore, a third rotary valve 20 is arranged above the rotary valve 12, through which the heating return and heating flow can be connected. This rotary slide valve 20 is also changed over to its two positions “open” and “closed” by an axis 21 protruding from the side wall 10. This makes it possible to increase the angle of rotation required for mixing when there are large temperature differences between the boiler circuit and the heating circuit and thus to increase the control room.

Claims (16)

1. A mixing device for a hot water heating installation, having a mixer mixing chamber (13) which has a rotary slide valve (12) and is connected to the pipes of the boiler outflow and return flow (KV, KR) and also the heating outflow and return flow (HV, HR), a mixture of varying temperature being supplied from the boiler outflow and the heating return flow by a pump (1) to the heating outflow (HV) and the boiler return flow (KR) in dependence on the position of the mixer rotary slide valve (12), hot water being supplied to a hot water tank, and a valve (14) disposed in the heating outflow (HV) branching the hot water off for the hot water tank, characterized in that the adjusting member (12a) of the valve (14) is non-positively and/or positively connected to the rotary slide valve (12) of the mixer.
2. A mixing device according to claim 1, characterized in that the adjusting member (12a) of the valve (14) is constructed unitary with the rotary slide valve (12) of the mixer.
3. A mixing device according to claims 1 or 2, characterized in that the adjusting member (12a) of the valve (14) is disposed coaxially with the rotary slide valve (12) of the mixer.
4. A mixing device according to one of the preceding claims, characterized in that the mixer (12, 13) and the valve (14) are disposed in the same casing (6).
5. A mixing device according to one of the preceding claims, characterized in that when the pipe (16) to the hot water tank is opened, the valve (14) completely closes the pipe (15) to the heating circuit.
6. A mixing device according to one of the preceding claims, characterized in that when the pipe (16) to the hot water tank is opened via the valve (14) the rotary slide valve (12) of the mixer separates the boiler outflow (KV) from the boiler return (KR) and the boiler outflow (KV) is connected via the pump (1) to the hot water tank inlet.
7. A mixing device according to one of the preceding claims, characterized in that the mixer (12, 13) is bridged by a bypass (17) which can be shut off and which connects the boiler return (KR) to the heating return (HR) and separates the boiler return (KR) from the mixing chamber (13) of the mixer during said connection.
8. A mixing device according to one of the preceding claims, characterized in that the mixer (12, 13) is bridged by a bypass (20a) which can be shut off and which connects the heating return (HR) to the heating outflow (HV).
9. A mixing device according to claims 7 or 8, characterized in that the closure valve (20) of the bypass (20a) is disposed in the casing (6) of the mixer (12, 13).
10. A mixing device according to one of the preceding claims, characterized in that the casing (6) of the mixer (12, 13) is disc-shaped.
11. A mixing device according to one of the preceding claims, characterized in that the casing (6) of the mixer (12, 13) is attached via a flat side (7) to a flat side (3) of the pump (1).
12. A mixing device according to claim 11, characterized in that the inlets and outlets (4, 5, 8, 9) discharge in the abutting flat sides (3, 7) of the pump and mixer casings (1, 7) and are aligned with one another in pairs.
13. A mixing device according to one of the preceding claims, characterized in that when the boiler outflow (KV) is connected to the hot water tank, the boiler outflow is separated from the heating outflow by the valve (14).
14. A mixing device according to one of the preceding claims, characterized in that prior to the connection of the boiler outflow (KV) to the hot water tank the valve (14) is completely closed.
15. A mixing device according to one of the preceding claims, characterized in that the working positions of the rotary slide valve (12) and the valve adjusting member (12a) are subdivided into 60° stages.
16. A mixing device according to one of the preceding claims, characterized in that the pump (1) is attached to one side of the mixer casing (6), the adjusting motor of the mixer (12, 13) being attached to the opposite side.
EP89106958A 1988-08-19 1989-04-19 Mixing device for a hot water heating installation Expired - Lifetime EP0359901B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89106958T ATE68048T1 (en) 1988-08-19 1989-04-19 MIXING DEVICE FOR A HOT WATER HEATING SYSTEM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3828206A DE3828206C1 (en) 1988-08-19 1988-08-19
DE3828206 1988-08-19

Publications (2)

Publication Number Publication Date
EP0359901A1 EP0359901A1 (en) 1990-03-28
EP0359901B1 true EP0359901B1 (en) 1991-10-02

Family

ID=6361202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106958A Expired - Lifetime EP0359901B1 (en) 1988-08-19 1989-04-19 Mixing device for a hot water heating installation

Country Status (5)

Country Link
EP (1) EP0359901B1 (en)
AT (1) ATE68048T1 (en)
DE (2) DE3828206C1 (en)
ES (1) ES2026286T3 (en)
GR (1) GR3003465T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20103392U1 (en) * 2001-02-27 2002-01-03 Viessmann Werke Kg heating circuit
EP3534075B1 (en) * 2018-03-02 2020-02-26 AFRISO-Euro-Index GmbH Three-way mixer with adjustable kvs value
DE102021108732A1 (en) 2021-04-08 2022-10-13 Elodrive Gmbh Mixer with adjustable KVS value

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909759U (en) * 1962-03-19 1965-02-11 Ludwig Siber MIXING AND CIRCULATION PUMP FOR HOT WATER HEATING AND HOT WATER HEATING SYSTEMS IN ONE HOUSING WITH FOUR CONNECTORS.
DE1273774B (en) * 1966-08-26 1968-07-25 Junkers & Co Pump collective heating system with a gas-heated circulation water heater, which serves as a heat source either for the collective heating system or for a domestic water heater
DE2154653A1 (en) * 1971-11-03 1973-05-10 Guenter Schuessler HOT WATER HEATING SYSTEM
DE7716337U1 (en) * 1977-05-24 1985-05-15 Taake, Wilhelm, 4970 Bad Oeynhausen Mixer with bypass

Also Published As

Publication number Publication date
DE58900332D1 (en) 1991-11-07
DE3828206C1 (en) 1989-11-02
ES2026286T3 (en) 1992-04-16
GR3003465T3 (en) 1993-02-17
ATE68048T1 (en) 1991-10-15
EP0359901A1 (en) 1990-03-28

Similar Documents

Publication Publication Date Title
DE3614425A1 (en) ELECTROMAGNETIC MULTI-FUNCTION SHUT-OFF ORGANIZATION
DE3503434A1 (en) CONTROL VALVE
DE2841998A1 (en) Hot and cold water mixing valve - has stationary seat disc with outlet bores connected to separate unions
EP0359901B1 (en) Mixing device for a hot water heating installation
DE19540580A1 (en) Three=way valve with valve actuator and by=pass, used e.g. in heating and conditioning units
EP0358843B1 (en) Pumps for a hot water heating system
DE2735544A1 (en) Control disc for shower mixing valve - has apertured mixing slide turning with control disc and sliding radially
EP0302083B1 (en) Mixer valve for heating plant
DE3313352C2 (en)
DE3121055A1 (en) Three-way or four-way mixing valve
DE912395C (en) Rotary valve-like closing element on air ducts of ventilation systems
EP0791772A2 (en) Three-way valve for hydraulic interface
EP0079535B1 (en) Reversing valve
DE4305694A1 (en) Distribution unit for heating or cooling systems working with a fluid heat transfer medium
DE3304678A1 (en) Mixing device for hot-water heaters
EP0715105B1 (en) Ball valve
DE4005745C2 (en)
EP0866280B1 (en) Connection adapter
DE3207427A1 (en) Method and device for controlling the boiler circuit/heating circuit water flowrate ratio in hot water heating systems
DE102017205150B4 (en) Fluid regulator and arrangement with such a fluid regulator and a pump
EP2093516B1 (en) Component for a compact heating system
DE2123914A1 (en) Multi-way cock, especially mixing valve
AT402673B (en) CONNECTING SET FOR HEATING RADIATORS CONNECTING SET FOR HEATING RADIATORS
EP0080145B1 (en) Stop valve for twin pipes
DE1675998B1 (en) Mixing device for hot water heating systems

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900309

17Q First examination report despatched

Effective date: 19910109

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 68048

Country of ref document: AT

Date of ref document: 19911015

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 58900332

Country of ref document: DE

Date of ref document: 19911107

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2026286

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3003465

EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 89106958.5

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

NLS Nl: assignments of ep-patents

Owner name: WILO GMBH TE DORTMUND, BONDSREPUBLIEK DUITSLAND.

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19960301

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960328

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19960402

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960403

Year of fee payment: 8

Ref country code: AT

Payment date: 19960403

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19960410

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19960430

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19960510

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970419

Ref country code: AT

Effective date: 19970419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970430

Ref country code: BE

Effective date: 19970430

BERE Be: lapsed

Owner name: WILO-WERK G.M.B.H. & CO. PUMPEN- UND APPARATEBAU

Effective date: 19970430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19971101

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3003465

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19971101

EUG Se: european patent has lapsed

Ref document number: 89106958.5

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990503

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020417

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020422

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020625

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050419