DE102021121780A1 - Connection arrangement with shut-off - Google Patents

Abstract

A connection fitting (10) for connecting a water fitting or a measuring or dosing device containing a fitting housing (12) with an inlet (20) and an outlet (22); an additional connection (24) provided on the fitting housing (12) for connecting the water fitting; a shut-off having a moveable shut-off member (56) fitted with a gasket (62) for shutting off the flow of water through the auxiliary port (24) for removal, servicing or replacement of the water fitting or metering or dispensing device; characterized in that the shut-off element (56) is provided in an operating position at least partially in the flow flowing from the inlet (20) to the outlet (22), so that part of the flow passes through the additional connection (24) and through the water fitting or the measuring or dosing device can be redirected; and the shut-off element (56) can be moved from the operating position into a shut-off position in which this partial flow is interrupted by the water fitting or the measuring or dosing device.

Description

technical field

1. (a) ein Armaturengehäuse mit einem Einlass und einem Auslass;
2. (b) einen an dem Armaturengehäuse vorgesehenen, zusätzlichen Anschluss zum Anschließen der Wasserarmatur;
3. (c) eine Absperrung mit einem beweglichen, mit einer Dichtung versehenen Absperrelement zum Unterbrechen des Wasserflusses durch den zusätzlichen Anschluss zum Entfernen, Warten oder Austauschen der Wasserarmatur oder des Mess- oder Dosiergeräts.

The invention relates to a connection fitting for connecting a water fitting or a measuring or dosing device, containing:

1. (a) a valve body having an inlet and an outlet;
2. (b) an additional port provided on the faucet body for connecting the water faucet;
3. (c) A shut-off with a movable, gasketed shut-off element to shut off the flow of water through the auxiliary port for removal, servicing or replacement of the water fitting or metering or dispensing device.

An example of such a water fitting is a diaphragm expansion tank. Other examples are blending devices. Measuring devices can in particular be manometers or thermometers. The shut-off is closed for maintenance, removal or replacement of the water fitting or the connected measuring or dosing device. Then no water flows and the device or fitting can be easily removed.

State of the art

Typically, diaphragm expansion vessels are installed in a pipeline together with a ball valve. If the diaphragm expansion tank needs maintenance, the ball valve is closed. Ball valves are a separate assembly that can be bulky, fragile, and expensive. There is a risk of stagnation with diaphragm expansion vessels. It is therefore known to conduct a partial flow through the membrane expansion vessel and thus avoid stagnation.

Disclosure of Invention

It is the object of the invention to simplify the connection of diaphragm expansion vessels.

• (d) das Absperrelement in einer Betriebsstellung zumindest teilweise in der vom Einlass zum Auslass fließenden Strömung vorgesehen ist, so dass ein Teil der Strömung durch den zusätzlichen Anschluss und durch die Wasserarmatur oder das Mess- oder Dosiergerät umleitbar ist; und
• (e) das Absperrelement von der Betriebsstellung in eine Absperrstellung bewegbar ist, in welcher diese Teilströmung durch die Wasserarmatur oder das Mess- oder Dosiergerät unterbrochen ist.

According to the invention, the object is achieved with a connection fitting of the type mentioned at the outset, which is characterized in that

• (d) the shut-off element is provided in an operating position at least partially in the flow flowing from the inlet to the outlet, so that part of the flow can be diverted through the additional connection and through the water fitting or the measuring or dosing device; and
• (e) the shut-off element can be moved from the operating position into a shut-off position in which this partial flow is interrupted by the water fitting or the measuring or dosing device.

With such an arrangement, a ball valve can be completely dispensed with. At the same time, the shut-off element acts as a deflection element, with which a partial flow is directed through the water fitting. The flow hits the shut-off element and is partially deflected there into the additional connection. From there it flows to the water fitting and back to the connection fitting via the additional connection. In this case, the shut-off element can preferably also assume a flow-guiding function. When the shut-off element is moved to the shut-off position, the flow through the additional port is interrupted. The device connected to it or the fitting connected to it can then be serviced, replaced or removed in the usual way.

In one embodiment of the invention, it is provided that the shut-off element performs a translational movement to open and close the shut-off. Unlike a ball valve, the shut-off element is not rotated but moved with a translatory movement. It is preferably provided that the shut-off element is held non-rotatably in the fitting housing. This ensures that the parts of the shut-off element that implement the deflection function always have the desired orientation. The partial flow is always diverted in the same way and in the same direction.

Advantageously, it is provided that the additional connection includes a housing socket, into which a screw element for connection to the water fitting is screwed. The screw element can be screwed to the housing connector via a thread. It goes without saying that suitable gaskets seal the connection.

To prevent the screw element from being moved completely out of the housing connector, a stop is advantageously provided which limits the movement of the screw element.

The barrier can be operated in any number of ways. A particularly advantageous embodiment of the invention provides that the screw element is rotatably connected to the shut-off element and the shut-off element Axial movement of the screw follows. Then the screw element serves not only to connect to the water fitting or the device, but also to actuate the shut-off. The angular orientation of the shut-off element is retained by the rotatable connection when the screw element is rotated. The rotation causes a translational movement of the shut-off element in the axial direction relative to the axis of rotation of the screw element. The shut-off element can be moved from the operating position to the shut-off position and vice versa by rotating the screw element.

A separate connection can be provided for the flow returning from the water fitting or the device. In a further embodiment of the invention it is provided that the shut-off element forms a partition wall in the additional connection, which separates the flow flowing in the direction of the water fitting from the flow which flows from the water fitting back into the connection fitting. As a result, both the outflow and the return flow are routed through the same connection.

The partition can be tubular or curved. However, it is particularly advantageous if the partition wall is at least partially flat and extends into the flow between the inlet and outlet in the operating position. The part protruding into the flow does not necessarily have to be flat. The partition also does not have to protrude far into the flow, especially if a small partial flow is sufficient, as is the case with membrane expansion vessels, for example.

It is preferably provided that the shut-off element comprises a closing body connected to the partition wall, which in the operating position protrudes into the flow between the inlet and outlet and directs the flow through the water fitting. In this case, the seal is preferably provided on the closing body. In this configuration, both the partition wall and the closing body are moved. Of course, it is also possible to fix the partition wall and only move the closing body to shut off.

A safety fitting may be connected upstream of the inlet. The safety fitting can include a further shut-off, for example a ball valve. A membrane expansion vessel can be connected to the additional connection as a water fitting. Alternatively, a manometer, a thermometer or another measuring or dosing device can also be provided.

Refinements of the invention are the subject matter of the dependent claims. An embodiment is explained in more detail below with reference to the accompanying drawings.

definitions

In this description and in the attached claims, all terms have a meaning familiar to the person skilled in the art, which can be found in the specialist literature, standards in particular DIN EN 806-1 and DIN EN 1717 and the relevant websites and publications, in particular of a lexical nature, for example www.Wikipedia.de, www.wissen.de or www.techniklexikon.net, the competitors, research institutes, universities and associations, for example the German Association of Gas and Water Specialists e.V. or the Association of German Engineers. In particular, the terms used do not have the opposite meaning of what the person skilled in the art infers from the above publications.

Absperrung

ist jede Art von Einrichtung, welche einen Fluidstrom ganz oder teilweise blockiert. Typische Absperrungen sind Magnetventile, Kugelhähne oder Ventile.

Armatur

ist ein Bauteil zur Installation in oder an einer Rohrleitung oder anderen Fluidinstallation zum Absperren, Regeln oder Beeinflussen von Stoffströmen. Eine Armatur kann einteilig oder mehrteilig ausgebildet sein und wird an einer Stelle in oder an der Rohrleitung installiert. Armaturen sind beispielsweise und nicht abschließend: Anschlussvorrichtungen, Anschlussarmaturen, Hauptabsperrarmaturen, Wartungsarmaturen, Drosselarmaturen, Entnahmestellen, Entnahmearmaturen, Entleerungsarmaturen, Sicherungsarmaturen, Sicherheitsarmaturen und Stellarmaturen.

Auslass

ist eine ablaufseitige Öffnung in einem Gehäuse, aus welcher ein Stoffstrom herausfließen kann. Die Öffnung kann insbesondere an eine Rohrleitung oder eine weitere Armatur angeschlossen sein oder frei zur Atmosphäre hin öffnen.

Auslassanschluss

Auslass, der den Anschluss von Leitungen, Schläuchen, Rohren oder weiteren Armaturen erlaubt.

axial

ist die Richtung der Rotationsachse von ganz oder teilweise rotationssymmetrischen Bauteilen, wie etwas Rohren oder langgestreckten Gehäusen. Bei Bauteilen ohne Rotationssymmetrie ist es die Hauptströmungsrichtung in einem B auteilab schnitt.

Bohrung

ist jede Art von Verbindung zweier Hohlräume, sowie Sacklöcher.

Einlass

ist eine zulaufseitige Öffnung in einem Gehäuse, in welchen ein Stoffstrom hineinfließen kann. Die Öffnung kann insbesondere an eine Rohrleitung oder eine weitere Armatur angeschlossen sein oder frei zur Atmosphäre hin öffnen.

Einlassanschluss

Einlass, der den Anschluss von Leitungen, Schläuchen, Rohren oder weiteren Armaturen erlaubt.

Gehäuse

Begrenzung für Stoffe, Bauteile, Instrumente und Messgeräte nach außen. Ein Gehäuse kann einteilig oder aus mehreren verbundenen Gehäuseteilen mehrteilig ausgebildet sein und aus einem oder mehreren Materialien bestehen.

Mutter

Maschinenelement zur Herstellung lösbarer Verbindungen. Die Mutter ist ein Hohlkörper mit Innengewinde.

radial

senkrecht zu einer axialen Richtung.

Rohr

Hohlkörper aus zylindrischen Abschnitten. Dient üblicherweise als Rohrleitung.

Schulter

Übergang von Abschnitten unterschiedlicher Durchmesser oder Dicken.

Stutzen

Rand oder Übergangsstück an einer Öffnung.

Ventil

Bauteil zur Absperrung oder Regelung des Durchflusses von Fluiden.

Furthermore, the following meanings are used as a basis for the terms used:

barrier

is any type of device that completely or partially blocks a fluid flow. Typical barriers are solenoid valves, ball valves or valves.

fitting

is a component for installation in or on a pipeline or other fluid installation to shut off, regulate or influence material flows. A fitting can be designed in one piece or in several pieces and is installed at a point in or on the pipeline. Fittings are, for example and not conclusively: connection devices, connection fittings, main shut-off fittings, maintenance fittings, throttle fittings, extraction points, extraction fittings, drain fittings, safety fittings, safety fittings and control fittings.

outlet

is an outlet-side opening in a housing from which a material flow can flow out. The opening can in particular be connected to a pipe or another fitting or open freely to the atmosphere.

outlet port

Outlet that allows the connection of lines, hoses, pipes or other fittings.

axial

is the direction of the axis of rotation of fully or partially rotationally symmetrical components, such as tubes or elongated housings. For components without rotational symmetry, it is the main direction of flow in a component section.

drilling

is any kind of connection between two cavities, as well as blind holes.

inlet

is an inlet-side opening in a housing into which a material flow can flow. The opening can in particular be connected to a pipe or another fitting or open freely to the atmosphere.

inlet port

Inlet that allows the connection of lines, hoses, pipes or other fittings.

Housing

Limitation of substances, components, instruments and measuring devices to the outside. A housing can be designed in one piece or in several parts from several connected housing parts and consist of one or more materials.

Mother

Machine element for making detachable connections. The nut is a hollow body with an internal thread.

radial

perpendicular to an axial direction.

Pipe

Hollow body made of cylindrical sections. Typically used as a conduit.

shoulder

Transition of sections of different diameters or thicknesses.

Support

Edge or transition piece at an opening.

Valve

Component for shutting off or regulating the flow of fluids.

character list

• 1 is a side view of a connection fitting for connecting a membrane expansion vessel with an upstream safety group and a shut-off.
• 2 is a vertical section through the arrangement 1 .
• 3 is a horizontal section through the arrangement 1 .
• 4 is a separate representation of the connection fitting 1 as a side view.
• 5 12 is a plan view of the connector fitting 4 .
• 6 is a vertical section through the connection fitting 4 in operating position with the shut-off open.
• 7 is a vertical section accordingly 6 in shut-off position with shut-off closed.
• 8th is a vertical section through the connection fitting 4 in a opposite 6 and 7 cutting plane offset by 90 degrees.
• 9 shows a detail 8th in the operating position.
• 10 shows a detail 8th in the locked position.
• 11 is a horizontal section through the connection fitting 4 through a sectional plane in which a fastening clip lies.
• 12 is a horizontal section through the connection fitting 7 along the cutting plane DD.
• 13 is an exploded view of the connection fitting 4 .
• 14 Figure 12 is a perspective view of the faucet housing and illustrates how the shut-off element is held in its angular position.

Description of the embodiment

1 shows a generally designated 10 connection fitting. In the present exemplary embodiment, the connection fitting serves to connect a diaphragm expansion vessel (not shown). However, other devices or fittings can also be connected, such as blending arrangements or manometers. The connection fitting has a fitting housing 12 . The fitting housing 12 is provided with a fastening device 14 with which it can be fastened to a wall or the like.

In the present exemplary embodiment, the connection fitting is installed in a water installation. A commercially available safety fitting 16 and a barrier 18, for example, can be installed upstream of the connection fitting. This is exemplified in the 1 until 3 illustrated.

4 until 14 show the connection fitting 10 separately. The connection fitting 10 has an essentially tubular housing 12 with an inlet 20 and an outlet 22. The connection fitting 10 can thus be connected in the usual way to a pipeline and/or—as in FIG 1 until 3 illustrated - can be connected to other water fittings.

The fitting housing 12 is provided on the top and bottom with sockets with pressure gauge openings 26 and 28, which are each closed with a closure 30 and 32 in the present case. An upstream and a downstream pressure can be measured via the openings. this is in 8th to recognize.

The fitting housing 12 is provided with a lateral housing connector 24 . The free end 42 of the housing connector 24 has a larger diameter than the part of the housing connector 24 on the housing side. The free end 42 is provided with a thread 36 . A screw element 34 is screwed into the thread 36 . The housing socket 24 extends radially to the connecting axis between the inlet 20 and the outlet 22. The screw element 34 is provided with an external hexagon 38. this is in 13 clearly visible. The screw element 34 can be rotated with a tool via the hexagon head and moved in the axial direction out of the socket 24 or into the socket 24 .

On the housing side, the screw element 34 also has a reduced diameter. The reduced diameter portion 40 is generally cylindrical and extends to the base of the neck 24. This is shown in FIG 6 and 7 clearly visible.

On the outside of the screw element 34 three annular projections 44, 46 and 48 are formed in the housing-side part. A seal 50 is held between the annular projections 46 and 48 . this is in 9 clearly visible. The seal 50 seals off the screw element 34 from the outside in relation to the housing socket 24 .

The housing socket 24 is provided with two slots 52 which extend in the circumferential direction. A clip 54 engages in the slots 52 and 11 and 13 is easy to see. The clip 54 is inserted through the slots 52 and engages around the screw member between the annular boss 48 and the larger diameter free end of the body stub. this is in 11 clearly visible. The ring protrusion 48 - top in 9 - serves as a stop. The annular projection 48 abuts the bracket 54 and limits the outward axial movement of the screw element 34 so that it cannot travel further than in 10 shown can be moved out of the socket 24.

The annular projection 44 is on the housing-side edge - below in 9 - Provided and serves as a stop for a shut-off element 56 described below. The shut-off element 56 comprises a closing body in the form of a shut-off plate 58 on which a planar partition 60 is formed. An annular groove with an annular seal 62 is provided on the shut-off plate 58 . This is in 9 and 10 clearly visible.

The shut-off element 58 has two guide pins 64 with a semicircular cross-section at the housing-side end. The guide pins 64 are in 12 and 13 to recognize. The fitting housing 12 has two corresponding grooves 66 on the inside. These are in 14 to recognize. The shut-off element 56 extends through the screw element 34 into the bore 68 in the fitting housing 12 between the inlet 20 and the outlet 22, through which the flow from the inlet 20 to the outlet 22 flows. The guide pins 64 are guided in the axial direction in the grooves 66 in the inner wall of the housing. The shut-off element 56 thus sits non-rotatably in relation to the housing 12 in the screw element 34.

The partition wall 60 is formed on the shut-off plate 58 . The partition wall 60 extends essentially perpendicularly to the shut-off plate 58 and divides the interior space of the screw element 34 into two halves. The two transition areas 70 between shut-off plate 58 and partition 60 are curved. As a result, part of the water flow from the inlet 20 can be diverted well out of the bore 68 into one half 72 of the screw element 34 . Water flow from the other half 74 of the screw element 34 can be redirected into the remaining water flow in the bore 68 towards the outlet 22 . The shut-off element 56 thus also serves as a deflection element for a partial flow. This is indicated by arrows in 6 illustrated.

6 shows the shut-off element 56 in an operating position. In this position, the shut-off disk 58 protrudes into the flow from the inlet 20 through the bore 68 to the outlet 22. The shut-off disk 58 can be used to interrupt the deflection of a partial flow. For this purpose, the screw element 34 is rotated. The screw element 34 moves - upwards in 6 - Out of the nozzle 24. The shut-off element 56 has a driver in the form of a driver ring 80 at the end of the partition wall 60 facing away from the shut-off plate 58 . This one is in 13 clearly visible. The carrier ring 80 is firmly connected to the partition wall 60 . The carrier ring 80 is clipped into an annular groove in the screw element 34 . If the screw element 34 performs an axial movement, the shut-off element 56 is moved in the axial direction.

6 and 9 show the shut-off element 56 in an operating position in which a partial flow is diverted through the screw element 34. 7 and 10 show the shut-off element 56 in a shut-off position, in which the shut-off plate 58 rests with the seal on the edge of the socket 24 and completely interrupts the deflection flow. The socket 24 is completely closed by the shut-off disk 58 of the shut-off element 56 and sealed with the seal 62 .

The arrangement described operates as follows: In the operating position and in the shut-off position, water flows in the direction of the arrows through the fitting arrangement from inlet 20 to outlet 22. Part of the flow is upstream 6 of the shut-off plate 58 and is diverted into the socket 24 or the screw element 34 located therein. It flows through the half 72 separated by the partition wall 60 to a membrane expansion vessel, where it ensures a flow which prevents stagnation. It is also possible to carry out a measurement or dosing there, for example to carry out a pressure, conductivity, temperature or other measurement or to add a chemical to the partial flow. A withdrawal or blending is also possible with such a partial flow possible. The flow through the attached device or fitting is then directed through the other half 74 beyond the partition 60 back into the main flow in the bore 68 . Here, too, the shut-off plate 58 is provided for deflecting the flow.

If the connected device or the connected fitting is to be serviced or replaced, the partial flow must be interrupted. For this purpose, the screw element 34 is rotated. The screw element 34 is moved outwards through the thread 36 . In the process, the shut-off element 56 is moved out of the flow until the shut-off plate 58 closes the housing socket 24 in a sealing manner. Then the entire flow flows from the inlet to the outlet and the connected device or fitting is freely accessible. When the screw element 34 is screwed back into the socket, the rim 44 presses on an elevation of the shut-off disc 58 and pushes it down. this is in 9 and 10 to recognize.

The exemplary embodiments explained above serve to illustrate the invention claimed in the claims. Features that are disclosed together with other features can usually also be used alone or in combination with other features that are explicitly or implicitly disclosed in the text or in the drawings in the exemplary embodiments. Dimensions and sizes are given as examples only. Suitable ranges are evident to the person skilled in the art from his specialist knowledge and therefore do not need to be explained in more detail here. The disclosure of a specific embodiment of a feature does not mean that the invention should be limited to this specific embodiment. Rather, such a feature can be realized by a variety of other configurations familiar to those skilled in the art. The invention may, therefore, be embodied not only in the forms set forth, but in all forms falling within the scope of the appended claims. In particular, more or fewer devices and fittings can also be connected. Sockets, pipes or lines can be designed in one piece or in several parts and have socket extensions, for example. Instead of coaxial arrangements for nozzles, other arrangements can also be implemented.

The terms "top", "bottom", "right" and "left" refer exclusively to the attached drawings. It is understood that claimed devices may also take a different orientation. The term “including” and the term “comprising” mean that further components not mentioned can be provided. The term "essentially", "predominantly" and "predominantly" includes all features that have a property or content in the majority, i.e. more than all other components or properties of the feature mentioned, i.e. more than 50% for two components, for example.

Claims (13)

Connection fitting (10) for connecting a water fitting or a measuring or dosing device, containing: (a) a fitting housing (12) with an inlet (20) and an outlet (22); (b) an additional connection (24) provided on the fitting housing (12) for connecting the water fitting; (c) a shut-off having a moveable shut-off member (56) fitted with a gasket (62) for shutting off the flow of water through the auxiliary port (24) for removal, servicing or replacement of the water fitting or metering or dispensing device; characterized in that (d) the shut-off element (56) is provided in an operative position at least partially in the flow flowing from the inlet (20) to the outlet (22) so that part of the flow passes through the additional port (24) and through the water fitting or the measuring or dosing device can be diverted; and (e) the shut-off element (56) can be moved from the operating position into a shut-off position in which this partial flow is interrupted by the water fitting or the measuring or dosing device. connection fitting claim 1 , characterized in that the shut-off element (56) performs a translational movement to open and close the shut-off. Connection fitting according to one of the preceding claims, characterized in that the shut-off element (56) is held non-rotatably in the fitting housing (12). Connection fitting according to one of the preceding claims, characterized in that the additional connection comprises a housing socket (24) into which a screw element (34) for connection to the water fitting is screwed. connection fitting claim 4 , characterized in that a stop (48) is provided which limits the movement of the screw element (34). connection fitting claim 4 or 5 , characterized in that the screw element (34) is rotatably connected to the shut-off element (56) and the shut-off element (56) follows an axial movement of the screw element (34). Connection fitting according to one of the preceding claims, characterized in that the shut-off element (56) forms a partition (60) in the additional connection (24), which separates the flow flowing in the direction of the water fitting from the flow which flows from the water fitting back into the connection fitting (10) flows. connection fitting claim 7 , characterized in that the partition wall (60) is at least partially planar and in the operating position extends into the flow between the inlet (20) and outlet (22). connection fitting claim 8 , characterized in that the shut-off element (56) comprises a closing body (58) connected to the partition (60), which in the operating position projects into the flow between the inlet (20) and outlet (22) and directs the flow through the water fitting. connection fitting claim 9 , characterized in that the seal (62) is provided on the closing body (58). Connection fitting according to one of the preceding claims, characterized in that a stop is provided which limits the movement of the shut-off element. Connection fitting according to one of the preceding claims, characterized in that a safety fitting (16) is connected upstream of the inlet (20). Connection fitting according to one of the preceding claims, characterized in that a diaphragm expansion vessel is connected to the further connection (24) as a water fitting.

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