CA1179276A - Device for water purification - Google Patents
Device for water purificationInfo
- Publication number
- CA1179276A CA1179276A CA000378421A CA378421A CA1179276A CA 1179276 A CA1179276 A CA 1179276A CA 000378421 A CA000378421 A CA 000378421A CA 378421 A CA378421 A CA 378421A CA 1179276 A CA1179276 A CA 1179276A
- Authority
- CA
- Canada
- Prior art keywords
- cover
- container
- water
- spiral
- inlet
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000000746 purification Methods 0.000 title claims abstract description 22
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 238000012856 packing Methods 0.000 abstract description 12
- 238000005192 partition Methods 0.000 abstract description 12
- 239000003599 detergent Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005262 decarbonization Methods 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000002328 demineralizing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
ABSTRACT
A device for water purification has a container, which comprises an approximately cylindrical wall with cover and bottom. Partitions are arranged spirally in the container. To create a water purification device with a great bed height without excessive space requirement, so that such purification devices can be easily used in households, in catering establishments, or in industrial practice, it is envisaged according to the present invention that the container can be charged with cleansing agent, and that one screen each is mounted at its inlet and outlet, so that a great bed height is obtained for the cleansing agent.
Consequently, the water being purified can be kept in contact with the packing over a long path from the inlet to the outlet.
A device for water purification has a container, which comprises an approximately cylindrical wall with cover and bottom. Partitions are arranged spirally in the container. To create a water purification device with a great bed height without excessive space requirement, so that such purification devices can be easily used in households, in catering establishments, or in industrial practice, it is envisaged according to the present invention that the container can be charged with cleansing agent, and that one screen each is mounted at its inlet and outlet, so that a great bed height is obtained for the cleansing agent.
Consequently, the water being purified can be kept in contact with the packing over a long path from the inlet to the outlet.
Description
t3~7~
~EVICE FOR WATER PURIFICATION
The present invention concerns a device for water purification with a container, which comprises on the outside an approximately cylindrical wall with cover and bottom, and in which spirally arranged partitions are mounted.
A filter tank for water purification of the above-described type with a jacket and with a funnel mounted on the said jacket for mounting on vessels is already known from German Design Patent No. 73 46 108. This device is bipartite, namely consisting of the funnel and the jacket, with the funnel being tightly connected with the approximately cylindrical jacket across a flange. The outside diameter of the jacket is considerably smaller than that of the funnel. The jacket has inserted screens both at the bottom, serving at that point as a bottom, and at the top, and the cleansing agent is held in the space between the said screens.
During the use of this known purification device, mostly in households, fresh water is filed from the water pipe into the funnel at the top, and it runs through the bed of filter material due to its own weight, i.e., under the pressure of the water column;
the height of the bed is predetermined by the length of the jacket. Since only the weight of the water to be purified itself, which is to generate the passage pressure is predetermined, the flow velocity of the liquid across the packing is sufficiently low so that there is an adequate hold time, and thus the water is purified thoroughly until the purified water leaves the jacket at the bottom through the screen.
1 ~ '7~3~76 If one should wish to increase the flow rate or to improve the quality of purification, one would have to preset a longer contact time ~etween the pac~ing and the liquid to be purified. However, the contact time becomes shorter as the flow velocity increases, unless the height of the bed is increased. In the known case this implies an elongation.of the jacket. Devices with an excessively long jacket are normally undesirable.
Especially in households and in catering institutions, water purification is considered a necessary evil, and one is rather reluctant to install bulky devices for this purpose. On the other hand, one is dependent upon the purification, especially on the demineralization, of water, which is determined by the type of the packing, e.g., activated carbon or ion exchangers or a mixture of both. Thus, very thorough purification and, possibly separating or combined, a decarbonization of the water are also possible. It is known that the quality of the filtered or demineralized water is strongly dependent on the height of the filter bed.
However, as was mentioned above, a great height of the filter bed in the form of a long, slender column requires much space and is difficult to fit in.
Therefore, the present invention has the basic task of improving a water purification device of the above-mentioned type in such a way that a great bed height is provided without excessive space requirement, so that such devices will be used as willingly as possible in households, catering establishments, or industrial practice.
'76 \
This goal is achieved according to the present invention in that the container can be filled with cleansing agent, and that one screen each is mounted at its inlet and outlet, so that a long bed height is obtained for the cleansing agent. The above-mentioned spiral form is not restricted to the geometrically ideal spiral, because instead the spiral can have an approximately oval, elongated, or rectangular course with rounded corners, and the shape- of the container can range from round to angular. Due to the spiral arrangement of the partitions inside the container, spiral pipes are provided accordingly, so that a long bed height is obtained in a narrow space for a filter packing, when the packing for the purification of the water, preferably activated carbon or ion exchanger, or a mixture of the two, is filled in between the partitions, namely, into the pipes formed by the partitions. Consequently, without the device becoming too unwieldy, it is possible to maintain the water being purified in contact with the packing over a long path from the inlet to the outlet. Thus, either an extremely high quality of purification is achieved, or the flow velocity can be increased with still very qood water quality. Specifically, the device according to the present invention can be attached to a faucet by means of a cooperating coupling at the inlet, so that it is possible to operate under such a water pressure as normally occurs in the water mains. This pressure is up to six bars of mercury. The bed height is determined, of course, by the length of the section or pipe packed with filter material, through which the water being purified must be passed, i.e., from the water intake to the outlet or, in other words, from one screen to the other.
il'79'~,7~
A device possessing these characteristics can be installed permanently on a water faucet in households, in caterinq establishments, or in industry without requiring much space.
One preferred embodiment according to the present inventin is characterized in that the container comprises on the outside an approximately cylindrical wall with cover and bottom, at least one of which is flat. The container can be preferably made of plastic, with the outside wall being essentially cylindrical.
In the embodiment described here, this outside wall differs from the exact cylindrical shape inasmuch as the spiral, seen in the cross section of the container, delineates a channel flarin~ helically toward the outside, which channel terminates at a point, so that here the outside walls must have a transition in the radial direction. Especially when such a container is made of plastic, the manufacture is simple in the case of this embodiment, straight from an injection mold.
Using this mold, a bottom or a cover on which integral supports for the partitions are molded, after which the container can be filled with the mass of filter material and closed after putting on and fastening the cover. Such a container can also be manufactured at low cost and with good functional qualities by mass production. The thickness of the partitions and of the supports is preferably smaller than that of the cylindrical wall and/or of the cover and bottom. Yet due to the plurality of partitions arranged next to each other, the cover and bottom are at a fixed distance from each other, and the entire container represents a compact and stable unit.
'7~
It is also expedient according to the present invention if the inlet is in the center of the cover in the form of a guick-release coupling with reducing nozzle. Thus, the device according to the present invention can be mounted easily with a flick of the wrist on a water faucet equipped with a corresponding coupling, and thereby be ready to use. During the flow of the water to be purified in continuous operation, the reducing nozzle provides for a pressure drop from mains pressure to operating pressure in the container packed with the packing material, so that damage to or even an explosion of the container is ruled out with certainty even when it consists of plastic walls.
Another advantage of the reducing nozzle is the smoothing of the pressure build-up during the charing of the water, i.e., during the putting into operation of the device, when the faucet is opened after the device is attached and fastened by means of the quick-release coupling, and the water pressure normally occurring in the water mains is only present at the inlet. Reducing the water pressure also results in the advantage that the flow velocity is reduced, and thus the contact time of the water with the packing is prolonged.
In another advantageous embodiment of the present invention, the reducing nozzle is mounted centrally at a distance above the top screen in the cover within the quick-release coupling. The distance between the top screen and the reducing nozzle crea~es a space inside the housing of the quick-release coupling which permits the water to be distributed evenly~ Since, moreover, the top screen is fixed in the cover inside ~he quick-il~79~7~
release coupling, i.e., in a mechanically strong, fixedpart, any water pressure that may build up can be held advantageously without breakage. Such a water pressure, e.g., the pressure occurring normally in the water mains, can build up in the housing of the quick-release coupling due to the entry of dirt with fresh water and its settling in the quick-release coupling.
Due to the fixed design of the coupling, the increased pressure building up behind the site of the clogging can be withstood without any problem, and leakage occurs. Furthermore, in the case of malfunction with back pressure, the filter material is held with certainty in the spiral container rather than being pressed or flushed into the quick-release coupling due to the fact that the top screen is mounted in the cover.
It is also e~pedient according to the present invention to provide a support element with increased thickness at least in the central area of the spiral.
If the above-described preferred embodiment of more or less true spiral shaped is used, mounting the support element only in the area of the center container can already be sufficient. Such a support element, e.g., in the form of a hydraulically favorable plastic bead, considerably increased the mechanical strength of the device according to the present invention. The support element is preferably attached on the cover or on the bottom. It then connects these two walls and confers a very stable shape to the entire container. In other embodiments with flow paths shapes deviating from the ideal spiral, such thickened support elements can be mounted eccentrically and/or in other places. They are preferably always mounted in the areas with the highest mechanical stress.
11~79~'7~
It is also advantageous accordinq to the present invention to fasten the outlet at the outer end of the spiral in the form of a truncated-cone-shaped pipe in the zone of the lower screen at the bottom. It is thus possible to qenerate a water jet for the purified water being discharged, so that the purified water does not run along the bottom on the outside and drip off in undesired places in a disadvantageous manner.
While the outlet is preferably at the outer end of the spiral, the inlet, in the form of the quick-release coupling, is in the central area instead. The quick-release coupling as was mentioned above, forms the means of fastening the device onto a water faucet, and the entire device is balanced better, i.e. 'r its weight is distributed more evenly on the water faucet, if the quick-release coupling with the reducing nozzle and top screen is in a central position in the device.
As was previously mentioned, the device according to the present invention can be used in different areas, e.g., in the household, in catering establishments, and in industry. While in the latter case the entire device is discarded as a disposable unit after the exhaustion of the filter material, the spiral container (the tank, which is approximately in the shape of a flat cylinder) can be slid in the manner of a cassette, such as in the case of recording tape or videotape, into a decorative unit, which -is attached to the water faucet. In this decorative unit, the spiral or cylindrical container represents only an insert, which is replaced by a new one and discarded when the packing is exhausted. The state of exhaustion of the packing is tested by means of a color indicator or, e.g., by-the taste of the water running from the ~lef-li'7~76 \
In the decorative unit, i.e., in the chromium-plated filter unit, in which the purification device is inserted in a removable and replaceable manner, like an insert or a cassette, there can be, for example, a two-way valve, which optionally discharges unfiltered water for simpler uses from the faucet directly into a basin underneath, or gives filtered water for higher quality requirements from the device after changing over. In this case, the shape of the cassette can also be preferably rectangular, with the pathway arrangement on the inside being more or less spiral, while in principle the flow path is spiral-like, i.e., the water being purified flows from the inside to the outside.
Other advantages, characteristics, and possible applications are found in the following description in connection with the drawings. Here:
Fig. 1 shows a cross sectional view taken along line I-I of Fig. 2 of a water purification device and of the approximately cylindrical container in the section in which the flow path is spiral from the inside to the outside; and Fig. 2 shows a cross sectional view of the device according to Fig. 1.
The water purification device comprises the plastic container designated generally by 1 which has an approximately cylindrical wall 2, a generally circular flat top cover 3, and a generally circular flat bottom 4. Between the cover and the bottom, there are partitions 5, preferably in a continuous spiral arrangement. The injection mold for preparing this container 1 is shaped such that the bottom 4 is integral with-the cylindrical wall 2 and with the ~17~ 76 spiral dividing partitions 5 are all molded together with it. In the manufacturing process, the bottom effluent screen 6 is either shaped simutaneously, or it is subsequently inserted and welded in. In addition, there is a thickened support element 8 in the area of the center of the spiral, which is ,also preferably molded on the bottom 4. The packing (not shown) is then charged into the individual spiral canals (ducts) during the manufacturing, after which the cover 3 is put in place and is fastened to the cylindrical wall 2 and to the partitions 5, for example, by welding. The top screen 7 is preferably pre-molded on the cover. A
quick-release coupling 9 is also molded on the cover 3 above the top screen 7.~The water is let in through this quick-release coupling 9 molded or welded on the cover 3.
As shown in the figures, the quick-release coupling 9 is mounted centrally on the cover 3, and is shown in Fig. 2 with a bead 10, over which a sleeve grips the faucet in order to create a fixed supporting connection between thè stationary faucet and the container 1 after coupling. The quick-release coupling 9 has a reducing nozzle 11 which is mounted in the quick-release coupling 9 at a distance above the top screen 7 in such a way that a space 12 is created between the screen 7 and the nozzle 11. If the water carried dirt with it, such dirt is able to collect in this space. Such dirt is prevented from entering to the packing located in the spiral flow path. It is clearly recognized that each partition 5 separates two adjacent paths from each other and forms the inside of one flow path and at the same time the outside of the other flow path.
11'7~76 The outlet at the outer end of the spiral is in the shape of a truncated conical pipe 13, which is molded on the bottom 4 and holds the lower screen 6 at the height of the bottom 4.
In a practical embodiment of such purification device, a flow rate of 60 liters/hours is reached, even though a flow rate of 100 liters of water per hours had already been reached with another embodiment.
~EVICE FOR WATER PURIFICATION
The present invention concerns a device for water purification with a container, which comprises on the outside an approximately cylindrical wall with cover and bottom, and in which spirally arranged partitions are mounted.
A filter tank for water purification of the above-described type with a jacket and with a funnel mounted on the said jacket for mounting on vessels is already known from German Design Patent No. 73 46 108. This device is bipartite, namely consisting of the funnel and the jacket, with the funnel being tightly connected with the approximately cylindrical jacket across a flange. The outside diameter of the jacket is considerably smaller than that of the funnel. The jacket has inserted screens both at the bottom, serving at that point as a bottom, and at the top, and the cleansing agent is held in the space between the said screens.
During the use of this known purification device, mostly in households, fresh water is filed from the water pipe into the funnel at the top, and it runs through the bed of filter material due to its own weight, i.e., under the pressure of the water column;
the height of the bed is predetermined by the length of the jacket. Since only the weight of the water to be purified itself, which is to generate the passage pressure is predetermined, the flow velocity of the liquid across the packing is sufficiently low so that there is an adequate hold time, and thus the water is purified thoroughly until the purified water leaves the jacket at the bottom through the screen.
1 ~ '7~3~76 If one should wish to increase the flow rate or to improve the quality of purification, one would have to preset a longer contact time ~etween the pac~ing and the liquid to be purified. However, the contact time becomes shorter as the flow velocity increases, unless the height of the bed is increased. In the known case this implies an elongation.of the jacket. Devices with an excessively long jacket are normally undesirable.
Especially in households and in catering institutions, water purification is considered a necessary evil, and one is rather reluctant to install bulky devices for this purpose. On the other hand, one is dependent upon the purification, especially on the demineralization, of water, which is determined by the type of the packing, e.g., activated carbon or ion exchangers or a mixture of both. Thus, very thorough purification and, possibly separating or combined, a decarbonization of the water are also possible. It is known that the quality of the filtered or demineralized water is strongly dependent on the height of the filter bed.
However, as was mentioned above, a great height of the filter bed in the form of a long, slender column requires much space and is difficult to fit in.
Therefore, the present invention has the basic task of improving a water purification device of the above-mentioned type in such a way that a great bed height is provided without excessive space requirement, so that such devices will be used as willingly as possible in households, catering establishments, or industrial practice.
'76 \
This goal is achieved according to the present invention in that the container can be filled with cleansing agent, and that one screen each is mounted at its inlet and outlet, so that a long bed height is obtained for the cleansing agent. The above-mentioned spiral form is not restricted to the geometrically ideal spiral, because instead the spiral can have an approximately oval, elongated, or rectangular course with rounded corners, and the shape- of the container can range from round to angular. Due to the spiral arrangement of the partitions inside the container, spiral pipes are provided accordingly, so that a long bed height is obtained in a narrow space for a filter packing, when the packing for the purification of the water, preferably activated carbon or ion exchanger, or a mixture of the two, is filled in between the partitions, namely, into the pipes formed by the partitions. Consequently, without the device becoming too unwieldy, it is possible to maintain the water being purified in contact with the packing over a long path from the inlet to the outlet. Thus, either an extremely high quality of purification is achieved, or the flow velocity can be increased with still very qood water quality. Specifically, the device according to the present invention can be attached to a faucet by means of a cooperating coupling at the inlet, so that it is possible to operate under such a water pressure as normally occurs in the water mains. This pressure is up to six bars of mercury. The bed height is determined, of course, by the length of the section or pipe packed with filter material, through which the water being purified must be passed, i.e., from the water intake to the outlet or, in other words, from one screen to the other.
il'79'~,7~
A device possessing these characteristics can be installed permanently on a water faucet in households, in caterinq establishments, or in industry without requiring much space.
One preferred embodiment according to the present inventin is characterized in that the container comprises on the outside an approximately cylindrical wall with cover and bottom, at least one of which is flat. The container can be preferably made of plastic, with the outside wall being essentially cylindrical.
In the embodiment described here, this outside wall differs from the exact cylindrical shape inasmuch as the spiral, seen in the cross section of the container, delineates a channel flarin~ helically toward the outside, which channel terminates at a point, so that here the outside walls must have a transition in the radial direction. Especially when such a container is made of plastic, the manufacture is simple in the case of this embodiment, straight from an injection mold.
Using this mold, a bottom or a cover on which integral supports for the partitions are molded, after which the container can be filled with the mass of filter material and closed after putting on and fastening the cover. Such a container can also be manufactured at low cost and with good functional qualities by mass production. The thickness of the partitions and of the supports is preferably smaller than that of the cylindrical wall and/or of the cover and bottom. Yet due to the plurality of partitions arranged next to each other, the cover and bottom are at a fixed distance from each other, and the entire container represents a compact and stable unit.
'7~
It is also expedient according to the present invention if the inlet is in the center of the cover in the form of a guick-release coupling with reducing nozzle. Thus, the device according to the present invention can be mounted easily with a flick of the wrist on a water faucet equipped with a corresponding coupling, and thereby be ready to use. During the flow of the water to be purified in continuous operation, the reducing nozzle provides for a pressure drop from mains pressure to operating pressure in the container packed with the packing material, so that damage to or even an explosion of the container is ruled out with certainty even when it consists of plastic walls.
Another advantage of the reducing nozzle is the smoothing of the pressure build-up during the charing of the water, i.e., during the putting into operation of the device, when the faucet is opened after the device is attached and fastened by means of the quick-release coupling, and the water pressure normally occurring in the water mains is only present at the inlet. Reducing the water pressure also results in the advantage that the flow velocity is reduced, and thus the contact time of the water with the packing is prolonged.
In another advantageous embodiment of the present invention, the reducing nozzle is mounted centrally at a distance above the top screen in the cover within the quick-release coupling. The distance between the top screen and the reducing nozzle crea~es a space inside the housing of the quick-release coupling which permits the water to be distributed evenly~ Since, moreover, the top screen is fixed in the cover inside ~he quick-il~79~7~
release coupling, i.e., in a mechanically strong, fixedpart, any water pressure that may build up can be held advantageously without breakage. Such a water pressure, e.g., the pressure occurring normally in the water mains, can build up in the housing of the quick-release coupling due to the entry of dirt with fresh water and its settling in the quick-release coupling.
Due to the fixed design of the coupling, the increased pressure building up behind the site of the clogging can be withstood without any problem, and leakage occurs. Furthermore, in the case of malfunction with back pressure, the filter material is held with certainty in the spiral container rather than being pressed or flushed into the quick-release coupling due to the fact that the top screen is mounted in the cover.
It is also e~pedient according to the present invention to provide a support element with increased thickness at least in the central area of the spiral.
If the above-described preferred embodiment of more or less true spiral shaped is used, mounting the support element only in the area of the center container can already be sufficient. Such a support element, e.g., in the form of a hydraulically favorable plastic bead, considerably increased the mechanical strength of the device according to the present invention. The support element is preferably attached on the cover or on the bottom. It then connects these two walls and confers a very stable shape to the entire container. In other embodiments with flow paths shapes deviating from the ideal spiral, such thickened support elements can be mounted eccentrically and/or in other places. They are preferably always mounted in the areas with the highest mechanical stress.
11~79~'7~
It is also advantageous accordinq to the present invention to fasten the outlet at the outer end of the spiral in the form of a truncated-cone-shaped pipe in the zone of the lower screen at the bottom. It is thus possible to qenerate a water jet for the purified water being discharged, so that the purified water does not run along the bottom on the outside and drip off in undesired places in a disadvantageous manner.
While the outlet is preferably at the outer end of the spiral, the inlet, in the form of the quick-release coupling, is in the central area instead. The quick-release coupling as was mentioned above, forms the means of fastening the device onto a water faucet, and the entire device is balanced better, i.e. 'r its weight is distributed more evenly on the water faucet, if the quick-release coupling with the reducing nozzle and top screen is in a central position in the device.
As was previously mentioned, the device according to the present invention can be used in different areas, e.g., in the household, in catering establishments, and in industry. While in the latter case the entire device is discarded as a disposable unit after the exhaustion of the filter material, the spiral container (the tank, which is approximately in the shape of a flat cylinder) can be slid in the manner of a cassette, such as in the case of recording tape or videotape, into a decorative unit, which -is attached to the water faucet. In this decorative unit, the spiral or cylindrical container represents only an insert, which is replaced by a new one and discarded when the packing is exhausted. The state of exhaustion of the packing is tested by means of a color indicator or, e.g., by-the taste of the water running from the ~lef-li'7~76 \
In the decorative unit, i.e., in the chromium-plated filter unit, in which the purification device is inserted in a removable and replaceable manner, like an insert or a cassette, there can be, for example, a two-way valve, which optionally discharges unfiltered water for simpler uses from the faucet directly into a basin underneath, or gives filtered water for higher quality requirements from the device after changing over. In this case, the shape of the cassette can also be preferably rectangular, with the pathway arrangement on the inside being more or less spiral, while in principle the flow path is spiral-like, i.e., the water being purified flows from the inside to the outside.
Other advantages, characteristics, and possible applications are found in the following description in connection with the drawings. Here:
Fig. 1 shows a cross sectional view taken along line I-I of Fig. 2 of a water purification device and of the approximately cylindrical container in the section in which the flow path is spiral from the inside to the outside; and Fig. 2 shows a cross sectional view of the device according to Fig. 1.
The water purification device comprises the plastic container designated generally by 1 which has an approximately cylindrical wall 2, a generally circular flat top cover 3, and a generally circular flat bottom 4. Between the cover and the bottom, there are partitions 5, preferably in a continuous spiral arrangement. The injection mold for preparing this container 1 is shaped such that the bottom 4 is integral with-the cylindrical wall 2 and with the ~17~ 76 spiral dividing partitions 5 are all molded together with it. In the manufacturing process, the bottom effluent screen 6 is either shaped simutaneously, or it is subsequently inserted and welded in. In addition, there is a thickened support element 8 in the area of the center of the spiral, which is ,also preferably molded on the bottom 4. The packing (not shown) is then charged into the individual spiral canals (ducts) during the manufacturing, after which the cover 3 is put in place and is fastened to the cylindrical wall 2 and to the partitions 5, for example, by welding. The top screen 7 is preferably pre-molded on the cover. A
quick-release coupling 9 is also molded on the cover 3 above the top screen 7.~The water is let in through this quick-release coupling 9 molded or welded on the cover 3.
As shown in the figures, the quick-release coupling 9 is mounted centrally on the cover 3, and is shown in Fig. 2 with a bead 10, over which a sleeve grips the faucet in order to create a fixed supporting connection between thè stationary faucet and the container 1 after coupling. The quick-release coupling 9 has a reducing nozzle 11 which is mounted in the quick-release coupling 9 at a distance above the top screen 7 in such a way that a space 12 is created between the screen 7 and the nozzle 11. If the water carried dirt with it, such dirt is able to collect in this space. Such dirt is prevented from entering to the packing located in the spiral flow path. It is clearly recognized that each partition 5 separates two adjacent paths from each other and forms the inside of one flow path and at the same time the outside of the other flow path.
11'7~76 The outlet at the outer end of the spiral is in the shape of a truncated conical pipe 13, which is molded on the bottom 4 and holds the lower screen 6 at the height of the bottom 4.
In a practical embodiment of such purification device, a flow rate of 60 liters/hours is reached, even though a flow rate of 100 liters of water per hours had already been reached with another embodiment.
Claims (8)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A water purification device comprising a flat cylindrical container having generally parallel cover and bottom walls and side walls of generally cylindrical form wherein the side walls are of a small dimension relative to the diameter of the cover and bottom walls; inlet and outlet ports, one at the general center of the cover and bottom walls and the other near the periphery of said walls near the outside wall, a spiral wall fixed to the bottom or the cover wall starting at the side walls to which it is also affixed adjacent the port near the periphery and extending to the center and extending between the cover and bottom walls over its length to form a spiral passage defining an exclusive flow path of extended length between the ports, particulate filter medium filling the space between the cover and bottom walls, and screens covering the inlet and outlet ports selected to retain the filter medium within the container.
2. A water purification device according to claim 1 in which the cover is separate and fixed in place after the container is filled with filter medium.
3. Device according to claim 1, characterized in that at least the cover or the bottom of the container is flat.
4. The water purification device according to claim 2 characterized in that the inlet is mounted in the center of the cover in the form of a quick-release coupling with a reducing nozzle.
5. Device according to claim 1, characterized in that the inlet is mounted in the center of the cover in the form of a quick-release coupling with a reducing nozzle.
6. Device according to claim 1, characterized in that the reducing nozzle is mounted centrally at a distance above the top screen in the cover within the quick-release coupling.
7. Device according to claim 1, 2 or 3, characterized in that a thickened support element is provided at least in the area of the center of the spiral.
8. Device according to claim 1, 2 or 3, characterized in that the outlet is fastened at the outer end of the spiral in the form of a truncated conical pipe in the area of the lower screen at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000378421A CA1179276A (en) | 1981-05-27 | 1981-05-27 | Device for water purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000378421A CA1179276A (en) | 1981-05-27 | 1981-05-27 | Device for water purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1179276A true CA1179276A (en) | 1984-12-11 |
Family
ID=4120072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000378421A Expired CA1179276A (en) | 1981-05-27 | 1981-05-27 | Device for water purification |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1179276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163856A (en) * | 2012-12-14 | 2015-12-16 | 曼·胡默尔有限公司 | Ion exchanger for a cooling circuit |
-
1981
- 1981-05-27 CA CA000378421A patent/CA1179276A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163856A (en) * | 2012-12-14 | 2015-12-16 | 曼·胡默尔有限公司 | Ion exchanger for a cooling circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5160038A (en) | Water purifying apparatus | |
| US4267042A (en) | Water filter, in particular for aquarium water | |
| US5785848A (en) | Rectangular body water purification device | |
| CA2242332C (en) | Membrane module for a membrane separation system, its use and process for producing the same | |
| US360441A (en) | Filtering apparatus | |
| CA1179276A (en) | Device for water purification | |
| JPS6354410B2 (en) | ||
| US6830684B2 (en) | Integrated liquid and gas distribution device for underdrain block laterals | |
| JPH0318921B2 (en) | ||
| JP2001500425A (en) | Filter element | |
| JPH05185069A (en) | Water purifying plant | |
| JP4076848B2 (en) | Water purifier | |
| CA1052287A (en) | Stacked parallel filters | |
| CN215387799U (en) | Double preposed filter element for water storage | |
| JPS63388Y2 (en) | ||
| JPH11253935A (en) | Water purifier | |
| SU685310A1 (en) | Liquid purifying apparatus | |
| JPH059044Y2 (en) | ||
| RU2049069C1 (en) | Device for cleaning drinkable water | |
| RU2001664C1 (en) | Membrane apparatus | |
| JP2762539B2 (en) | Filter | |
| JPS638461Y2 (en) | ||
| JP3871366B2 (en) | Water purification cartridge | |
| JPH0677654B2 (en) | Filter | |
| JPH0691989B2 (en) | Water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |