WO2009138084A1

WO2009138084A1 - Compact water treatment arrangement with a supporting housing

Info

Publication number: WO2009138084A1
Application number: PCT/DK2009/000108
Authority: WO
Inventors: Anders Valbjørn
Original assignee: Danfoss A/S; Laursen, Michael
Priority date: 2008-05-14
Filing date: 2009-05-12
Publication date: 2009-11-19
Also published as: DE102008023431A1

Abstract

A liquid treatment arrangement (1) is specified, in particular a water treatment arrangement, with at least one reverse osmosis membrane unit (11), a pump (14), a pump driving device (12, 16) and a holder on which components of the liquid treatment arrangement (1) are arranged. The intention is to make a liquid treatment arrangement universally usable. For this purpose, the holder is designed as a housing (2-5) which surrounds and keeps components (11-18) of the liquid treatment arrangement (1) in position.

Description

Fluid treatment device, in particular water treatment device

The invention relates to a liquid treatment arrangement, in particular a water treatment arrangement, with at least one reverse osmosis membrane unit, a pump, a pump drive device and a holder on which components of the liquid treatment arrangement are arranged.

A fluid treatment arrangement with reverse osmosis membrane units, a pump and a pump drive device is known, for example, from DE 10 2005 055403 A1. Such an arrangement serves to treat dirty water so that it can be used as a custom or drinking water. For this purpose, the dirty water is brought to an elevated pressure and then acts on the membrane in the membrane unit. Purified water can then be removed on the other side of the membrane. The still under increased pressure residual waste water, which is also referred to as concentrate, is used to drive a hydraulic motor, which in turn drives a pump together with an electric motor with which the dirty water can be brought to the increased pressure.

In practice, the individual components of the fluid treatment assembly must be held in a firm and lasting relationship. Usually this is a frame or the like of metal profiles, such as square tubes ago. The individual components are then mounted on this frame. This results in many cases, although a technically useful liquid treatment arrangement. However, it can be observed that such a liquid keitsbehandlungsanordnung is reluctant to use, especially if you need to use them in a visible position. Accordingly, the actual applications of such a liquid treatment arrangement are limited.

The invention has for its object to make a liquid treatment arrangement universally applicable.

This object is achieved in a fluid treatment arrangement of the type mentioned in the introduction in that the holder is designed as a housing which holds and encloses components of the fluid treatment arrangement in position.

With this embodiment, it is initially possible to significantly improve the visual appearance of the liquid treatment system. The individual components are covered by the housing, so that they are no longer visible, at least from some points of view. Not only does the case provide aesthetic benefits by enhancing its appearance, it is also used to hold and protect individual components. If you provide for a fixed space inside the housing for individual components, then you can design this place so that the respective component can be reliably absorbed there. As a result, the assembly of a liquid treatment arrangement is considerably simplified. There are lower assembly costs, so that you can make the liquid treatment arrangement cheaper. Also the maintenance becomes easier. For example, you can easily replace individual components if necessary.

Preferably, the housing has housing parts made of plastic. With plastic parts you have a relatively large design variety. You can plastic parts, for example by injection molding or in spin finished casting process, so that the plastic parts can already obtain a profiling, which is later suitable to enclose individual components of the liquid treatment arrangement or hold in any other way.

It is preferred that the housing is designed in several parts. A multi-part housing can be at least partially disassembled or at least partially open for mounting the individual components. This makes assembly easy. It is also usually easier to manufacture several individual parts of plastic than a complete housing. It is also possible to ensure that, in the case of a multi-part housing, a housing part is first connected to components and then further housing parts are mounted until finally the housing with the components of the fluid treatment arrangement contained therein produces a finished liquid treatment arrangement. This results in a modular construction.

It is preferred that the housing has a base part, an intermediate part which is placed on the base part, and a cover which is placed on the intermediate part. This makes it possible to build the housing with a few parts that can be assembled while absorbing components of the liquid treatment arrangement between them.

It is preferred that the intermediate part defines an opening which is closed by a closing element. The closing element may be, for example, a door or a flap. Although the closing element is a housing element, which is used in addition to the three previously existing housing elements base part, intermediate part and cover. But it allows easy accessibility of the components that are housed inside the housing. Preferably, the base part has a connection arrangement with a power supply connection, a dirty liquid connection, a clean liquid connection and a concentrate connection. If one summarizes the individual connections in a connection arrangement in the base part, then one has a defined "interface" to the outside, so that one can deliver the liquid treatment arrangement as it were as a unit and connect with the required lines. The power supply connection can be connected, for example, to a power supply line which supplies an electrical alternating voltage of 220 V and 50 Hz or 110 V and 60 Hz.

It is also advantageous if the connection arrangement has at least some of the connections at least twice on opposite sides of the base part. In this case, one is more flexible in setting up the fluid treatment assembly, i. there is no particular Aufstellrichtung the liquid treatment assembly required.

Preferably, the base part has at least one receptacle into which one of the elements reverse osmosis membrane unit, filter, pump and drive unit is inserted via a pump. This facilitates the assembly of the liquid treatment arrangement to a considerable extent. You just have to insert the corresponding element in the base part. If the receptacle has a corresponding depth, then the corresponding element is already secured against being tilted by the insertion. Although this fuse may not be fully sufficient to ensure safe transport of the liquid treatment arrangement, the subsequent assembly of further elements or housing parts will be facilitated.

Preferably, a moisture sensor is arranged in at least one receptacle. If one of the elements of the fluid treatment arrangement has or becomes defective, then collect the liquid at the lowest point. This is usually the recording. If you place a humidity or liquid sensor there, you will get information about whether a defect has occurred somewhere. The sensor can then trigger an alarm so that a repair can be made early and further damage can be avoided.

Preferably, the intermediate part has at least one recess corresponding to the receptacle in the base part, into which the element inserted in the receptacle is likewise inserted. Thus, the corresponding element is held at its two ends, namely once in the base part and once in the intermediate part. If such an element is held at both ends, then it is reliably secured against tilting. A movement between the base part and the intermediate part in other ways is not possible because the corresponding element is secured against longitudinal displacement. In the circumferential direction, the element is also held on all sides, so that the corresponding element is reliably held in the housing with the mounting of the intermediate part of the base part.

Preferably, the base part and the intermediate part have a lateral overlap. Thus, the base part and the intermediate part are secured against lateral displacement relative to each other, which in turn means that also accommodated in the housing elements of the liquid treatment assembly are fixed in position.

The base part and the intermediate part preferably have a latching connection with one another. Base part and intermediate part can be easily plugged together, wherein, for example, a resilient element on the base part engages in a corresponding fastening receptacle on the intermediate part or vice versa. With such a catch or snap connection The assembly is further simplified. On the other hand, such a snap or snap connection can also solve again.

Preferably, a filter device is attached to the intermediate part. This is particularly advantageous when using a plurality of filter devices, for example a pre-filter and a post-filter. You can then attach, for example, the secondary filter in the base and the prefilter on the intermediate part.

The base part preferably has an integrally molded-on line holder. Such a line holder may for example be formed by two U forming projections, between which a hose or another line can be inserted.

Preferably, a control device is arranged in the lid. By way of example, the control device can be connected to sensors which determine different operating states of the fluid treatment arrangement or properties of the individual fluids, and controls the fluid treatment arrangement as a function of these properties.

It is also advantageous if the closing element is fastened with a hinge connection on the intermediate part. You can then use the closing element as a flap or door. In a preferred embodiment, it is provided here that the closing element has hinges on both sides, ie left and right or top and bottom, so that one is practically free in the opening direction.

The fluid treatment arrangement preferably has a telephone module. Such a module is embodied, for example, as a GSM module, so that it is possible, for example, to monitor the state of the fluid treatment arrangement with a mobile telephone, change settings and receive an SMS in the event of errors, service etc. The invention will be described below with reference to a preferred embodiment in conjunction with a drawing. Herein show:

1 shows a fluid treatment arrangement from the left,

2 shows the liquid treatment arrangement from the rear,

3 shows the liquid treatment arrangement from the right,

4 shows the liquid treatment arrangement from the front,

5 is a sectional view V-V of FIG. 2,

Fig. 6 is a sectional view Vl-Vl of Fig. 4 and

Fig. 7 is a perspective view of a base part.

Figures 1 to 4 show a liquid treatment assembly 1 from the outside and that Fig. 1 from the left, Fig. 2 from the back, Fig. 3 from the right and

Fig. 4 from the front. The liquid treatment arrangement 1 is here designed with a housing which has a base part 2, an intermediate part 3, a cover 4 and a closing element 5. The closing element 5 is arranged on the front side and connected to the intermediate part 3 via a hinge connection 6, which is provided both on the left and on the right of the closing element 5, so that the closing element 5, which can also be referred to as flap or door, follows can be opened on both sides.

On the base part 2, a connection arrangement 7 is provided on the left as well as on the right, which in a schematically illustrated manner provides a voltage supply of, for example, 220 V / 50 Hz or 110 V / 60 Hz Has dirty water connection, a pure water connection, a concentrate connection and possibly a rinsing liquid connection. These two connection arrangements are provided on opposite sides of the base part 2, so that the installation direction of the liquid treatment arrangement can be chosen more or less arbitrarily. You can also omit a connection arrangement, so do not lead to the outside. In this case, however, the housing has precautions, such as openings or zones of weakness, in order to be able to lead the connections to the outside.

As can be seen from Fig. 2, there is an overlap 8 between the base part 2 and the intermediate part 3, which is not limited to the back shown in Fig. 2, but on the left and on the right side of the base part. 2 continues, so that the intermediate part 3 and the base part 2 can not be moved laterally against each other. Moreover, the base part 2 has a mounting surface designed as a bevel 9, so that the intermediate part 3 can not be moved from the front to the rear relative to the base part 2.

As can be seen in Fig. 4, a control panel 10 is provided in the lid 4, which may have controls and / or a display.

The internal structure of the liquid treatment device 1 will be described in more detail in connection with FIGS. 5 to 7.

It can be seen a reverse osmosis membrane unit 11, which is designed as a pressure tube, an electric motor 12 via a coupling 13 with a pump 14 for the dirty liquid and a coupling 15 with a hydraulic motor 16 is connected, wherein the hydraulic motor 16 is fed by the concentrate under a relatively high pressure, so that the Energy that is needed to bring the dirty liquid to the desired high pressure, partially recover.

On the other side of the membrane unit 11, a pre-filter 17 and a post-filter 18 are arranged. The pre-filter 17 is in this case attached to an intermediate wall 19 of the intermediate part 3, for example by means of a screw 20. If you open the closing element 5, then the two filters 17, 18 are directly accessible, so that they can be easily maintained. The filters 17, 18 are elements of the liquid treatment assembly 1 which are most frequently accessed. In the lid 4, a control unit 21 is arranged, which is connected on the one hand to the control panel 10 and on the other hand with the electric motor 12 and other responsible for the control of the individual liquids by the liquid treatment elements such as valves, pressure gauge, etc. A piping between the individual Elements are not shown here for reasons of clarity. It should be noted, however, that not only a membrane unit 11 is present, but three membrane units 11 are arranged perpendicular to the plane one behind the other.

Fig. 6 shows a section Vl-Vl of Fig. 4, in which like elements are provided with the same reference numerals. It can be seen that the intermediate part 3 and the base part 2 are connected to one another with a latching connection 22. This locking connection can be easily made and easily solved again.

Fig. 7 shows the base part 2 in a perspective view. The base part 2 has a number of receptacles, including a receptacle 23 for the post-filter 18. It can be seen that the receptacle 23 would also provide space for several post-filter units, wherein the receptacle 23 has several arcuate sections 24 in its circumferential boundary wall , so that a round filter housing would be reliably held here. Another receptacle 25 with three sections is provided for the membrane units 11. A receptacle 26 serves to support the hydraulic motor 16. In addition, a receptacle 27 is provided, in which at least one sensor can be accommodated, for example a pressure sensor, a conductivity sensor or the like.

In the receptacle 27 or in one of the other receptacle, a liquid or moisture sensor can also be arranged. If one of the elements of the liquid treatment assembly 1 leaks or will, then the exiting liquid will flow into one of the receptacles 23, 25 to 27, which can be detected by the liquid or moisture sensor relatively quickly. This sensor can then trigger an alarm.

In the left side wall of the base part 2, a plurality of openings 28 can be seen, through which the terminals of the terminal arrangement 7 can be guided from the inside to the outside. At the back of elements 29 of the locking connection 22 can be seen. Between the receptacles 23 and 25 holders 30 are each visible with a screw hole 31, where the intermediate part 3 can be connected to the base part 2.

For installation, the post-filter 18 is inserted into the receptacle 23 and the reverse osmosis membrane units 11 are inserted into the receptacle 25. The pump drive device with the hydraulic motor 16 and the electric motor 12 is inserted into the receptacle 26. Since the said elements are guided over a certain length from the base part 2, more precisely the receptacles 23, 25, 26 mentioned therein, they are at least provisionally secured against tilting. Other measures to retain these elements are not required for assembly purposes.

Thereafter, the intermediate part is placed on the base part 2. The intermediate part 3 has at its upper end corresponding recesses 32, 33, with which the pump 14 and the membrane units 11 can be plugged together. If the intermediate part 3 is locked to the base part 2 and connected by a screw, then the pump 14 with its pump drive device 12, 16 on the one hand and the membrane units 11 are reliably held in the housing. Thereafter, the lid 4 can be placed and the closing element 5 are mounted.

With regard to the liquid treatment, the illustrated liquid treatment arrangement 1 has the same components as the above-mentioned DE 10 2005 055 403 A1. However, these components are reliably held in the housing by the interaction of base part 2 and intermediate part 3 relative to each other and protected by the housing.

The fluid treatment assembly 1 may also include a built-in telephone module, e.g. have a GSM module, so that you can monitor with his mobile phone, for example, the state of the Flüssigkeitsbehandlungsan- order 1, change settings and in the case of errors, service, etc. can receive an SMS.

The post-filter 18 provides the purified water with minerals and other necessary additives. In addition, in the post-filter 18 there may also be units for UV irradiation, an active carbon filter, chlorine, ozone, etc.

As can be seen from FIG. 4, the base part 2 also has two line holders 34, which are formed in one piece with the base part 2. The line holders 34 may, for example, have two projections, which together form a U-shaped recess into which a hose or another line can be inserted. You can also use the housing advantageously for noise insulation or damping, for example by using noise insulating materials in the empty recesses 23, 25, 26 in the bottom of the housing or arranging such materials between see the individual components and the housing.

Claims

claims

1. Liquid treatment arrangement, in particular water treatment arrangement, with at least one reverse osmosis membrane unit, a pump, a pump drive device and a holder on which components of the Flüssigkeitsbehandlungsanord- tion are arranged, characterized in that the holder as a housing (2-5) is formed which holds and encloses components (11-18) of the liquid treatment assembly (1) in position.

2. Liquid treatment arrangement according to claim 1, characterized in that the housing (2-5) has housing parts made of plastic.

3. Liquid treatment arrangement according to claim 1 or 2, characterized in that the housing (2-5) is formed in several parts.

4. liquid treatment arrangement according to claim 3, characterized in that the housing (2-5) has a base part (2), an intermediate part (3) which is placed on the base part (2), and a lid (4) which on the Intermediate part (3) is fitted, has.

5. liquid treatment arrangement according to claim 4, characterized in that the intermediate part (3) defines an opening which is closed by a closing element (5).

6. liquid treatment arrangement according to claim 4 or 5, characterized in that the base part (2) has a connection arrangement (7) with a power supply connection, a Dirty liquid connection, a clean liquid connection and a concentrate connection.

7. liquid treatment arrangement according to claim 6, character- ized in that the connection arrangement (7) at least some of the terminals at least twice on opposite sides of the base part (2).

8. Liquid treatment arrangement according to one of claims 4 to 7, characterized in that the base part (2) at least one

Receptacle (23, 25-27) into which one of the elements reverse osmosis membrane unit (11), filter (18), pump drive means (12, 16) or pump is inserted.

9. Liquid treatment arrangement according to claim 8, characterized in that in at least one receptacle (27) a liquid sensor is arranged.

10. fluid treatment arrangement according to claim 8 or 9, character- ized in that the intermediate part (3) at least one of the receptacle (23, 25-27) corresponding recess (32, 33), in which the in the receptacle (23, 25 -27) inserted element is also inserted.

11. Liquid treatment arrangement according to one of claims 4 to 10, characterized in that the base part (2) and the intermediate part (3) have a lateral overlap (8).

12. Liquid treatment arrangement according to one of claims 4 to 11, characterized in that the base part (2) and the intermediate part (3) have a latching connection (22) with each other.

13. Liquid treatment arrangement according to one of claims 4 to

12, characterized in that a filter device (17) is attached to the intermediate part (3).

14. Liquid treatment arrangement according to one of claims 4 to

13, characterized in that the base part (2) has an integrally molded line holder (34).

15. Liquid treatment arrangement according to one of claims 4 to 14, characterized in that a control device (21) in

Cover (4) is arranged.

16. Liquid treatment arrangement according to one of claims 5 to

15, characterized in that the closing element (5) is fastened with a hinge connection (6) on the intermediate part (3).

17. Liquid treatment arrangement according to one of claims 1 to

16, characterized in that it comprises a telephone module.