DE7323692U - Multi-way valve for reversing the direction of flow of filters especially intended for water treatment in domestic swimming pools - Google Patents

Description

DR. BERG, ··, piPL .-. JNGr-STA-PF. .... ,

DIPL.-ING. SCHWA'Bi "; eJrJ PRj SANDMAIR {$ \

PATENT LAWYERS ^X \

8 MÜNCHEN 86, POSTFACH 86 02 45 i

Dr. Berg Dipl.-Ing. Slapf, 8 Munich 86. P. O. Box 86 02 45 · i

"hf sign Our sign 8 MÜNCHEN 80 2 61 νΙΐΙΠΙ 1973

^{Your Γβ (} Our ref. Mauerk.rcherstraBe 45 Legal records 24 021

Ludwig Rauh, Roden via Lohr / Main

Multi-way valve for reversing the direction of flow of in particular for water treatment for Filters provided for house swimming pools.

The innovation concerns a multi-way valve for reversing the direction of flow in the liquid being treated Filters, which are intended in particular for water treatment for domestic swimming pools, with binem valve

(0811) 98 82 7 "Telegrams: BERGSTAPFPATENT Munich Banks: Bayerische Vereinsbank Munich 453 100

70 43 TELEX: 05 24 560 BERGd Hypo-Dank Munich 389 2623

^{33 10} Pool check Munich 653 43 -808

home, on which at least four housing connections are formed of which one as a liquid inlet, one as a liquid outlet and two as filter connections are provided, between which the filter can be switched, and which an inner bore circular in cross section has, into which the housing connections open and in which a valve core is rotatably seated, on which at least four core connections interacting at least in part alternately with the housing connections are formed, at least two of which are connected by a core channel.

In a known supply valve with four housing connections and four core connections, which is suitable for reversing the ¹ "flow direction in a line circuit, the housing and core connections are on the circumference of the valve

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evenly distributed, i.e. offset by 90 to one another, arranged «Since with this multi-way valve the mutual

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Shifting the connections by 90 is mandatory, such a multi-way valve can be designed while maintaining the basic concept, that a fifth housing connection is provided, which can optionally be connected to one of the other housing connections via an assigned core channel. In addition, such a multi-way valve must be considerably large when large flow cross-sections are required so that the connections

housed in sufficient size on the circumference of the valve can uerden. Furthermore, with such a Special precautions must be taken to ensure that the valve Valve core,. Housing fits tightly and the valve does not leak.

The new multi-way valve is for line circuits provided, in uelchequen at least one filter is arranged in which a liquid is filtered uird. In particular is the innovation for systems for the treatment of flowing water for private use, and there especially for a water supply system for domestic swimming pools.

With such water supply systems for domestic swimming pools there is generally a sand filter that has to be backwashed from time to time. During normal operation The water from the swimming pool is pumped through the filter and filtered there and then returned to the pool “During the Backwashing of the filter becomes the direction of flow in this of the water coming from the pump is reversed and the dirty water discharged from it into a sewer directed. Switching to normal operation and backwashing of the filter is preferably done with a single V ρ η t i1 in made in a single movement. The innovation gnrn'iCrj

782369221.3.74

Multi-way valve is suitable for such a switchover.

In the pipeline of such water supply systems for swimming pools is generally also a device for Irradiation of the water intended for its disinfection with ultraviolet rays. For this it has already been suggested that to displaceably arrange a cleaning slide on the radiation tube running along the tube through which the water flows, which slide has one end of the tube on the other hand there and back through the flowing water to wipe off sedimentation on the radiation tube is taken. For this it is necessary to reverse the direction of flow in the pipe from time to time. Even for reversing the direction of flow in such a The re-directional multi-way valve is suitable for radiation filters.

The innovation creates a multi-way valve to reverse the direction of flow in filters that treat liquids. which is tight with an extremely simple structure and which while retaining what it is based on Structure can easily be converted into a multi-purpose valve.

According to the innovation, this is done on a multi-way valve from the introduction mentioned type achieved in that the inner bore

and accordingly the valve core are conical and the liquid and a core connection serving as a core inlet are formed concentrically at the larger diameter end of the inner bore and the valve core, wherein the other core and housing connections are formed on the circumference of the valve core and the inner bore.

In the case of the new or inappropriate multi-way valve, the valve core becomes by the pressure of the liquid entering the core inlet through the liquid inlet on the in diameter The smaller end of the inner bore is pressed so that the valve core is always close to the inner wall of the inner bore is applied. The contact pressure grows automatically with the size of the liquid pressure There is no spring for pressing a conical core into a conical inner bore.

The reusable valve according to the innovation is particularly suitable for the plastic version. If the valve has jammed in the inner bore after a long period of inactivity should, a slight]) pressure on the actuating handle provided for turning the valve core on the is sufficient Liquid inlet remote side of the valve to the To loosen the valve core from the inner bore. After the valve core has been rotated accordingly to switch over, the still existing fluid pressure ensures again

the tight fit of the valve core to the housing.

In the case of the multi-way valve according to the invention, there is no housing connection compared to the known two-way valve mentioned at the beginning and a core port on the periphery of the valve. This means there is more space here for the rest of the house Connections available. With comparatively the same flow cross-sections, the valve according to the invention can be made smaller than the known valve,

In the case of the multi-way valve according to the innovation, the direction of flow in the dam connects the core inlet and core outlet Core channel not affected by switching the valve. This core channel is always connected to the liquid inlet on the housing. This ultimately leads to that the housing connections on the circumference of the valve are not at the same angle to each other for all valve shapes need to be offset. Oia housing connections can rather close together. Slides allow short Switching carriage and the accommodation of further connections on the circumference of the valve.

The one filter connection is preferably symmetrical between the other filter connection and the liquid outlet and the al3 core outlet connected to the core inlet core connection between two other

connections serving core connections, against these around the same Offset 3uinkel uie the housing connections to each other staggered, arranged.

The offset angle between the housing connections and the core connections can be a maximum of 120, in which case the switching angle is also 120. Here is however, the switching travel is relatively large,

It is therefore preferred that the offset angle be

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at least 90 and that a further core connection serving as a safety connection is formed in the l / sntile core, which is connected to the two other switching connections and is arranged offset from one of them by the offset angle. In such an embodiment, there are three housing connections on the circumference of the valve and four core connections with the core outlet and the three switching connections. The core connections thus alternately end blindly at the inner bore of the housing for each switching position of the valve. The formation of a third switching connection makes it possible, however, to arrange the housing connections at a small distance from one another. The offset angle between the housing connections arranged on the circumference of the valve can thus be smaller than 5Li. Addition to the external housing connections

If there is enough space available, further housing connections that interact with the corresponding Kgrnkanalen, for increasing the number of switching functions of the valve.

If the innovation according to the valve as a mere changeover valve it is provided that there are only zuei filter connections and a liquid outlet on the circumference of the valve, the valve core can simply consist of a hollow truncated cone which is closed at its end faces and has three or four openings on its circumference and a further opening in the middle on its larger end face. In a circumferential opening and the front opening is then a curved tube or piece of tubing to form the core channel connecting the core inlet to the core outlet pushed and glued with dBm core sheath. the remaining then still on the circumference of the core free zuei or three openings then form the switching connections, which over the free cavity inside the core are connected to one another.

For the use of the valve according to the innovation as a backwash valve for a backflushable filter there is an additional housing connection as a waste water connection on the housing circumference And two additional ones on the core as switching connections

serving core connections formed, each of the two switching connections located on the same side of the core output are connected by a core channel. There are thus a total of four housing connections on the circumference of the housing, zuei filter connections, a liquid outlet and an exhaust water connection available. At the scope of the Kerns, however, are provided with a total of five core connections, namely the core output and four switching connections. For such an embodiment of the valve are therefore the

Housing connections or core flange. ¹ "sse offset against each other by a maximum of 72.

The smallest possible offset angle between the connections is not only advantageous in order to achieve a short circuit but it may also be beneficial for the following reason. This makes it easier Way that, according to a further innovation proposal, the distance measured in the circumferential direction at least between the adjacent filter connections is smaller than the opening side of the core outlet. This will not result in any Admixing of the valve, the core outlet is completely closed, so that during switching of the valve there is always a flow opening for the one entering the core inlet via the liquid inlet and from there to the Liquid coming from the pump and flowing through the core outlet is available. This prevents the pump from being overloaded while the valve is being switched over.

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In addition, it enables the valve according to the innovation without further, to connect the core outlet directly to the liquid outlet and thus to bypass the filter. this can be beneficial to keep the pump running and others Circulation of the liquid to make an exchange of the filter or parts thereof.

Based on the drawing, exemplary embodiments of the innovation Multi-way valve explained. In the drawing shows:

Fig. 1 is a plan view of an embodiment of a Mghrway valve,

FIG. 2 shows a longitudinal section along the section line i "FIG. 1,

Fig. 3

and FIG. 4 shows an execution farm in different switching positions to switch the flow direction in a radiation filter and

Fig. 6

and FIG. 7 shows an embodiment of the multi-way valve for use for backwashing a sand filter.

The multi-way valve shown in Figures 1 and 2 has

ο ei ·, housing 1 with three on its circumference each by 90

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housing connections Γ, J>, ä , which are offset against one another, and with a housing connection 5 arranged on the lower end wall of the Jchäunos. The lower housing connection 5, which serves as a liquid inlet, opens concentrically into an inner bore 6 in the housing 1, which becomes tapered towards the top. A valve core 7 with a correspondingly conical outer circumference is inserted into the inner bore 5, at the upper end of which a switch handle 9 arranged outside the housing for rotating the valve core 7 is fastened in a non-rotatable manner by means of a square.

The \ / entilk-3rn 7 consists of one on both front sides locked. Hollow truncated cone, in the L) circumferential wall of which the with the arranged on the circumference of the housing housing connections 2 to 4 cooperating core connections in the form of openings, and in the lower one, larger in diameter End wall a further opening are formed concentrically to the liquid inlet 5. Between the frontal Opening of the valve core 7 and one of the openings arranged on the circumference extends a curved tube or Hose piece for forming a core channel 10, which with its ends at the edge of the associated openings is glued. At the lower end of the core channel 'i 0 is thus a core inlet cooperating with the liquid inlet 5 11, and at the upper side end of the Kernl; anrls 1 ü

a core outlet 12 cooperating with the housing connections arranged on the circumference of the housing is formed, ·

Due to the conical shape of the inner bore 6 and the f valve core 7 and the arrangement of the liquid inlet ^! _r 5 and the core inlet 11 at the larger diameter end of the inner bore 6 and the valve core 7 is this

to the end of the inner bore with the smaller diameter 6 h- ± fl

pressed by the inflowing liquid. In doing so, ■ the outer surface of the valve core adjoins the circumferential surface of the inner bore 6. The one to the switch handle 9 leading square 8 is through the upper end wall of the housing 1 with sufficient play for rotation ■ of the square. Here in general ■ think no special seal is to be provided, since the liquid due to the sealing effect of the valve cone 7; cannot escape into the space above the valve cone and between it and the housing.

The handle 9 extends in the same direction as the upper core channel 10 and has at its core output ^12: end facing a tip 13, is displayed by means of which, on which the package leads 2, 3, 4 of the core output is aligned 12th

Figures 3 to 5 show a simple changeover valve with the basic structure according to FIG. 2 for the

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wall to reverse the direction of flow in a tubular Radiation filter 14 through which the liquid for irradiation with a radiation tube flows. In order to take a carriage seated on the radiation tube along through the liquid for cleaning the radiation tube, it is necessary from time to time to reverse the direction of flow in the radiation filter 14.

For this purpose, the multi-way valve according to FIGS. 3 and 4 has three housing connections 2, 3, 4, arranged on the circumference of the valve. of which the connections 2 and 3 are provided as switching connections and the housing connection 4 as a liquid outlet. Correspondingly, in the valve core 7, next to the core outlet 12

three further core connections 15, 16, 17 offset from one another by 90 each, all of which are connected to the Interior of the valve core 7 are in communication.

In the switching position of the valve according to FIG. 3, the flows by means of a pump, not shown, via the liquid inlet and the Kerneingai g 11 supplied liquid the core outlet 12 into the filter connection 3, and from there into the right end of the tubular radiation filter 14. From this, the liquid exits at the left end, via the filter connection 2 and the switching connection 15 into the interior of the core 7 and from there to the switching

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Conclusion 15 opposite switching connection 16 and the Liquid outlet 4 from. If the device shown is intended for the disinfection of swimming pool water is, the treated in the radiation tube 14 arrives and water emerging from the liquid outlet 4 of the valve into the swimming pool and from there over the Liquid inlet 5 back into the valve. The dem Switching connection 17 opposite core output 12 ends blindly in the switching position of the valve according to FIG. 3 on the peripheral wall of the valve housing.

If the valve core is to reverse the flow direction in the radiation filter 14 from the switching position in Fig.

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Turned counterclockwise by 90 in the Schaltsttdlung according to FIG. 4, then the core outlet 12 is aligned with the filter connection 2 and the filter connection 3 opens via the switching connection 16 previously cooperating with the liquid outlet into the interior of the valve core. The liquid located therein then emerges from the switching connection 17, which previously ended blindly at the housing wall, and the liquid outlet 4, which overlaps with it, out of the valve. The switching connection 15 previously aligned with the filter connection 2 now ends blindly at the housing element. Overall, the filter connections 2 and 3 are now interchanged in their function, so that the

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Liquid the radiation filter 14 now in reverse Direction flows through.

α According to FIG. 5, the housing connections are each 12 ″ j offset against each other. In addition to the core output 12, there are accordingly only two further switching connections 15 and 16 present, which are connected by a core channel 18 in the valve core 7 designed as a solid core according to FIG.

The multi-way valve shown in FIGS. 6 and 7 is intended for backwashing a filter F. In particular Application case is the liquid outlet 4 with the Connected swimming pool, from which the water is pumped into the central core entrance 11 via a pump shown will. There are four housing connections on the circumference of the Flehrueg valve 4, 19, 20, 21 formed mutually around each 72 are offset, with between the first housing connection 4 and the last housing connection 21 an angle of 144 is formed. Between the liquid outlet 4 and the housing connection serving as a waste water connection 21 two filter connections 19 and 20 are arranged. Of the The valve core 7 has next to the core outlet 12 on the circumference four further switching connections 22, 23, 24, 25, of which the S ^ stop connections 22 and 23 through a core channel 26 and the switching connections 24 and 25 through a core channel 27 are connected. These core channels 26 and 27 bridge

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thus 72 ° in each case

In the switching position according to FIG. 6, the core output gear is aligned with the filter connection 19. Correspondingly, the filter connection 2Ü with the switching connection 22 and the switching connection 23 with the liquid outlet 4 overlap. The switching connection 25 is aligned with the exhaust water connection 21. The switching connection 24 connected to the switching connection 25 via the core channel 27 ends blindly at the housing element. The water pressed from the pump into the barrel inlet 11 thus flows through the core outlet 12 and the filter connection 19 into the filter F and from there via the filter connection 20, the switching connection 22, the core channel 26, the switching connection 23 and the liquid outlet 4/4 ¹ Js, the switching position shown in Fig. 6 represents the operating position for the filter F. If the core 7 is rotated by 72 from the switching position according to FIG. To the switching position according to FIG. 7, the filter connection 20 is now the filter input with the core output 12, and the filter connection 19 is connected as a filter output to the switching connection 25 and via the core duct 27 and the 5 switching connection 24 to the exhaust water connection 21, the switching connection 22 is above the liquid outlet The switching connection 23 connected to this switching connection 22 via the core duct 26 ends blindly the housing brand. In the switching position according to FIG. 7, the

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Filter F backwashed, the dirty water exiting the filter via the sewage connection 21 in a not sewer shown is flushed

As can be seen from Figures 6 and 7, the each smallest distance between adjacent housing connections smaller than the opening width of the core connections, measured in the circumferential direction of the valve · This means that there is always a flow path even in the intermediate positions of the valve core 7 in the valve for the water coming out of the pump, so that it is not overloaded when the valve is switched over or must be switched off while the valve is being switched over «

If in the embodiment according to Figures 6 and 7 of Core outlet 12 is aligned with the sewer connection 21, the filter connections 19 and 20 are through the core channel 26 short-circuited and the core channel 27 connected to the liquid outlet 4 ends blindly at the housing element With such a switch position, the water from the swimming pool is pumped directly into the sewer, no new water being added to the swimming pool via the liquid outlet.

If, however, the core outlet 12 is on the liquid outlet 4, then the filter F is placed over the core

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Channel 27 short-circuited and the water from the swimming pool flows directly via the pump and the flow valve back in the pool. At a Such Schaltsteliung the filter or parts thereof can be replaced without having to turn off the pump needs to be "

As can be seen, a corresponding switch position is in which the radiation filter 14 is outside the liquid circuit is also possible by the core exit 12 is aligned with the liquid outlet 4.

To these special switch positions for pumping the water out of the swimming pool or for short-circuiting the filter to lock in normal operation, z. B. screwed into the upper end wall of the housing 1 one or two screws which interact as stops with the switch handle 9 and unscrewed for the special switching positions will.

As can be seen, the in one of Figures 3 to 5 and one of the U-valves shown in Figures 6 and 7 are connected in series that ζ «, B. der Liquid inlet 5 of the radiation filter 14 zuooi-dneten Valve to the liquid outlet 4 of the dsm

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Sand filter Γ associated with \ J en tils is connected. Of course, it is also possible to add a plurality of filters connected in series to the filter connections.

UIb for the core channel shown in Fig. 2] 10 shown, the other embodiments or a part of the core channels connecting each zuei core connections consist of hose or pipe pieces that are glued into corresponding openings in the wall of a hollow truncated cone forming the valve core . Such a training de., Valve cone simplifies its manufacture considerably. In the embodiment according to FIGS. 6 and 7, it is sufficient that only one of the two core channels 26 and 27 connecting the switching connections consists of a tubular tube piece, whereas the other core channel is formed directly by the interior of the hollow valve cone.

- Schützen5οruche -

Claims (6)

Protection claims t 1 multi-way valve for reversing the direction of flow in liquid-treating filters, which are intended in particular for water treatment for _{domestic swimming pools, with a valve housing 5} on which at least four housing connections are formed, one of which is provided as a liquid inlet, one as a liquid outlet and also as filter connections, between which the filter can be held, and which has an inner bore of circular cross-section into which the housing connections open and in which a valve core is rotatably seated, on which at least four core connections are formed which interact with the housing connections, at least in part alternately at least two are connected by a core channel, characterized in that the inner bore (6) and, accordingly, the valve core (?) are conical and the liquid inlet (5) and a core connection serving as a core inlet (11) are concentric to the one in the you The larger end of the inner bore (δ) and the valve core (7) are formed, the remaining core and housing connections being formed on the circumference of the valve core (7) and the inner bore (δ) are. - 21 ■ 2. Multi-way valve according to claim 1, characterized in that the one filter connection (3, 20) symmetrically between the other filter connection (2, 19) and the liquid outlet (4), and the one with the core inlet (11) connected core connection serving as Ksrn output (12) between two other core connections serving as switching connections (15, 16, 22, 25), against them around the same Offset angle like the housing connections (2, 3, 4, 19, 20, 4) arranged offset from one another are. 3. Multi-way valve according to claim 2, characterized in that that the offset angle is at most / 90 and that in the valve core (7) there is another switch connector (i7) serving core connection is formed, which is connected to the two other Schaltanschlüsson (15, 16) and is arranged offset from one of these by the offset angle, 4. Multi-way valve according to claim 1 wire 2, characterized in that that there is an additional housing connection on the circumference of the housing as waste water connection (21) and on the core circumference two additional, as switching connections (23, 24) serving Kernarischlüsse are formed, with each dia both on the same side the core output (12) switching connections (22, 23) bzu. (24, 25) are connected by a core channel (26, 27). 5. Multi-way valve according to claim 3 or 4, characterized in that that measured in the circumferential direction of the smallest distance at least between the adjacent filter connections (2, 3, 19, 20) smaller than that The opening width of the core outlet (12) is. 6. Multi-way valve according to one of claims 1 to 5, characterized characterized in that the valve core (7) is designed as a hollow truncated cone, in the wall of which the Openings forming core connections are formed, and that the core channels (1O, 18, 26, 27) all, or except for one through the interior of the hollow truncated cone formed core channel are formed from pipe or hose pieces, the ends of which in the prevent the associated openings are tightly attached.