DE29909020U1 - Water delivery and supply system - Google Patents

Description

Gesthuysen & von Rohr

99.330.2.CO Essen, 26 May 1999

Utility model application

Elektra Beckum AG Daimlerstrasse 1

49716 Meppen

Water extraction and supply system

Gesthuysen & von Rohr - 1 -

The invention relates to a water extraction and supply system consisting of several pressure vessels of different sizes and/or equipment, several pumps of different performance and/or equipment and, if appropriate, a hydromat.

Water demand and supply systems of the type in question have long been known under the name of domestic water supply. A domestic water supply system consists of a pressure vessel with a connected pressure hose and a pump attached to the pressure vessel, usually a centrifugal pump, with the usual hydraulic and electrical equipment, in particular pressure switches, pressure gauges, line branches, electrical connections, etc. Water is sucked in from a well by the pump, stored in the pressure vessel according to its volume and fed into the connected supply network. The pressure vessel serves as a buffer volume for water so that the pump does not switch on and off constantly. An overview is provided by the relevant specialist literature and advertising material from the relevant suppliers (Elektra Beckum sales catalog 1999).

In addition to domestic water supply systems with pressure vessels, domestic water supply machines are also well known. A domestic water supply machine consists of a pump, usually a centrifugal pump, and a hydromat. A hydromat keeps the water pressure on the outlet side constant, switches the pump depending on the flow and protects the pump against running dry.

The normal sales program of a provider of water demand and supply systems includes a large number of different, fully assembled domestic water supply systems and domestic water supply machines. In addition, there are various types of pumps (solo pumps for stand-alone use).

The invention is based on the problem of providing a water demand and supply system that is simply constructed and flexible and can be implemented with little effort.

Gesthuysen & von Rohr - 2 -

The water conveying and supply system according to the invention is characterized by the features of the characterizing part of claim 1. There are a small number of different pressure vessels, each of which is completed and fully equipped with the hydraulic and connection accessories. These pressure vessels form the basis of the water conveying and supply system. In addition to the pressure vessels, there are a small number of different pumps with different performance and/or equipment, which are initially suitable as solo pumps. The pumps are equipped uniformly so that each pump can be combined with each pressure vessel. The corresponding connections and fastening arrangements of the pressure vessels and pumps are adapted to one another.

By cleverly staggering the various pressure vessels and the various pumps, an optimally combinable water delivery and supply system can be set up with just a few units, in particular with three or four pumps and two, three or four pressure vessels. In addition, the preferred design is a single Hydromat belonging to the system, which can always be easily assembled with any of the pumps instead of a pressure vessel with accessories.

Preferred embodiments and further developments are the subject of the subclaims.

Subordinate claims relate, on the one hand, to the pressure vessels specially designed according to the invention and, on the other hand, to the pumps specially designed according to the invention.

In the following, the invention is explained in more detail with reference to a drawing which merely shows exemplary embodiments.

Fig. 1 shows a schematic view of an embodiment of a water extraction and supply system in the form of a domestic water supply system,

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Gesthuysen & von Rohr - 3 -

Fig. 2 shows such a water demand and supply system in the design as a domestic water supply system (with Hydromat instead of pressure tank).

Fig. 1 shows a side view of an embodiment of a domestic water supply system of a water demand and supply system according to the invention.

The system as a whole consists of several pressure vessels 1 of different sizes and/or equipment, several pumps 2 with pump heads 3, motors 4 and housings 5 of different performance and/or equipment, as well as other hydraulic and connection-related additional parts. According to the invention, each pressure vessel 1, including the pressure vessel 1 shown here, is equipped with a pressure switch 6 and a pressure hose 7 ready for connection and has a fastening arrangement 8 for all pressure vessels 1, here a fastening platform, for the pumps 2. The pressure hose 7 is firmly attached to the pressure switch 6 and has a pressure connection 9 at the free end for attachment to a corresponding connection piece 10 of the pump 2. Each pump 2 has a fastening arrangement 11 for attachment to one of the pressure vessels 1, which is uniform for all pumps 2. In addition, uniform suction and pressure connections 13, 14 are provided. This means that each pump 2 can be easily assembled with each pressure vessel 1. The example shown in Fig. 1 shows the assembled system.

Fig. 2 shows a corresponding system with a hydromat 12, which can be easily assembled with each of the pumps 2 instead of a pressure vessel 1. The hydromat 12 is connected directly to a pressure connection 14 of the pump 2, as is known per se from the prior art.

In one case, a customer puts together his desired combination of pump 2 and pressure vessel 1, while in the embodiment according to Fig. 2 only pump 2 is selected, whereby as a rule one and the same Hydromat 12 is always combined with it.

Gesthuysen & von Rohr - 4 -

The illustrated and in this respect preferred embodiment further shows that each pump 2 has a connection piece 10 for the pressure connection 9 of the pressure hose 7, which is separate from the suction connection 13 and pressure connection 14 of the pump 2 and is the same for all pumps 2. This separation from the already existing, functionally necessary connections 13, 14 makes it possible to design the connection piece 10 optimally in terms of fastening and pressure technology, so that a pressure-tight connection can be easily established here with certainty. When the pump 2 is used as a solo pump or with Hydromat 12, the connection piece 10 can remain closed, for example by means of a blind plug.

The illustrated and preferred embodiment further shows that here each pressure vessel 1 on the pressure switch 6 or each Hydromat 12 has an electrical supply connection 15 for the pump 2 and an electrical supply line 16 for the mains connection. In this embodiment, the mains supply for the pump 2 is routed via the pressure switch 6, so that the system as a whole only requires one mains connection. As can be seen from the drawing, in particular Fig. 1, the electrical supply connection 15 for the pump 2 in the illustrated embodiment is a normal socket (standard socket) for the household network, while the electrical supply line 16 is equipped at the end with a normal plug for the household network.

It is only indicated in Fig. 1 that each pressure vessel 1 has a pressure gauge, preferably attached and formed on the pressure switch 6.

What is not shown in Fig. 1 is that the pump 2 can be covered with a soundproof hood. However, it can be seen that the pump 2 has a cable winder 17 integrated in the pump housing 5, as has long been known for other technical devices, for example for high-pressure cleaners.

As already mentioned above, a very limited number of pressure vessels 1, pumps 2 and Hydromat 12 are sufficient for a sufficiently extensive product range. It is recommended to provide the system with three pressure vessels 1, four pumps 2 and, if necessary, the Hydromat 12. A corresponding coordination

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Gesthuysen & von Rohr - 5 -

The sizes and equipment details of the pressure vessels 1 and pumps 2 can be determined according to practical requirements.

The invention also relates to a pressure vessel 1 which is particularly intended and suitable for use in a water conveying and supply system, as well as a corresponding pump 2.

Claims (14)

1. Water pumping and supply system consisting of several pressure vessels ( 1 ) of different sizes and/or equipment, several pumps ( 2 ) of different performance and/or equipment, characterized in that
that each pressure vessel ( 1 ) is equipped with a pressure switch ( 6 ) and a pressure hose ( 7 ) ready for connection and has a fastening arrangement ( 8 ) for the pumps ( 2 ) that is uniform for all pressure vessels ( 1 ),
that each pump ( 2 ) has a fastening arrangement ( 11 ) which is uniform for all pumps ( 2 ) for attachment to a pressure vessel ( 1 ) and a suction connection ( 13 ) and a pressure connection ( 14 ) which are uniform for all pumps ( 1 ) and
that each pump ( 2 ) can be easily assembled with each pressure vessel ( 1 ). 2. System according to claim 1, characterized in that the system also includes a hydromat ( 12 ) which, instead of a pressure vessel ( 1 ), can be easily assembled with each of the pumps ( 2 ), in particular can be attached to the pressure connection ( 14 ). 3. System according to claim 1 or 2, characterized in that each pump ( 2 ) has a connection piece ( 10 ), in particular a screw connection piece or a plug connection piece, for the pressure hose ( 7 ), which is separate from the suction connection ( 13 ) and pressure connection ( 14 ) of the pump ( 2 ) and is uniform for all pumps ( 2 ). 4. System according to one of claims 1 to 3, characterized in that each pressure vessel ( 1 ) on the pressure switch ( 6 ) or each hydromat ( 12 ) has an electrical supply connection ( 15 ) for a mains connection plug of the pump ( 2 ) and an electrical supply line ( 16 ) for the mains connection. 5. System according to one of claims 1 to 4, characterized in that each pressure vessel ( 1 ), preferably on the pressure switch ( 6 ), has a pressure gauge. 6. System according to one of claims 1 to 5, characterized in that the pump ( 2 ) is covered with a soundproof hood. 7. System according to one of claims 1 to 6, characterized in that the pump ( 2 ) has a cable winder ( 17 ) integrated in the pump housing ( 5 ). 8. System according to one of claims 1 to 7, characterized in that three pressure vessels ( 1 ), four pumps ( 2 ) and optionally the hydromat ( 12 ) are provided in the system. 9. Pressure vessel for a water conveying and supply system, in particular according to one of claims 1 to 8, characterized in that the pressure vessel ( 1 ) is equipped ready for connection with a pressure switch ( 6 ) and pressure hose ( 7 ) and has a fastening arrangement ( 8 ) for a pump ( 2 ). 10. Pressure vessel according to claim 9, characterized in that the pressure vessel ( 1 ) has an electrical supply connection ( 15 ), in particular a standard socket, for the pump ( 2 ) and an electrical supply line ( 16 ), in particular with a standard plug, for the mains connection, on the pressure switch ( 6 ). 11. Pressure vessel according to claim 9 or 10, characterized in that the pressure vessel ( 1 ), preferably on the pressure switch ( 6 ), has a pressure gauge. 12. Pump for a water conveying and supply system, in particular according to one of claims 1 to 8, characterized in that the pump ( 2 ) has a fastening arrangement ( 11 ) for attachment to a pressure vessel ( 1 ) and that the pump ( 2 ) has a connection piece ( 10 ) for a pressure hose ( 7 ) of the pressure vessel ( 1 ), separate from the suction connection ( 13 ) and pressure connection ( 14 ) of the pump ( 2 ). 13. Pump according to claim 12, characterized in that the pump ( 2 ) is covered with a sound insulation hood. 14. Pump according to claim 12 or 13, characterized in that the pump ( 2 ) has a cable winder ( 17 ) integrated in the pump housing ( 5 ).