DE102019100030B4 - Water treatment module and water treatment system - Google Patents

Abstract

Water treatment module, with an inlet (12) for water to be filtered and an outlet (16) for filtered water and a common carrier (20), the - a replaceable filter (18), - an inlet line (52) between inlet (12) and Filter (18) and an electrically switchable, upstream valve (42) acting in the inlet line (52), - an outlet line (74) between the filter (18) and outlet (16) and an electrically acting in the outlet line (74) switchable, downstream valve (80), - a flushing feed line (84) with an associated flushing feed valve (92), the flushing feed line (84) branching off between the filter (18) and the downstream valve (80) for supplying water during a backwashing process, and - A flushing discharge line (96) which branches off from the filter (18) and leads to a flushing water outlet (104) and carries an electrically actuable flushing drain valve (102) assigned to the flushing discharge line (96).

Description

The invention relates to a water treatment module with an inlet for water to be filtered and an outlet for filtered water as well as a water treatment system.

Water treatment systems for private households as well as for commercial operations or public companies such as hospitals are known. These water treatment systems prevent foreign particles such as rust particles or biological impurities from entering the tap water. Filter systems, for. B. used ultrafiltration systems with membranes. The filters have to be serviced at regular intervals, that is, they are backwashed on the one hand before the filter has reached its absorption capacity so that foreign particles cannot leave the water treatment system. On the other hand, the filters have to be completely replaced from time to time, for example before the membrane cracks, because filters have a limited service life.

For backwashing, adjacent water treatment systems are piped together so that the filtered water from one water treatment system can flow to the neighboring one and backwash the filter there.

The well-known water treatment plants are equipped with numerous pipes that connect parts with one another. For this reason, known water treatment systems are very expensive.

In the WO 2005/003469 A2 discloses a device and a method for backwashing a filter medium by a backwash device with treated water.

The object of the invention is to be able to design a water treatment system more simply and, above all, more service-friendly.

• - einen auswechselbaren Filter,
• - eine Zulaufleitung zwischen Einlass und Filter und ein in der Zulaufleitung wirkendes, elektrisch schaltbares, stromaufwärtiges Ventil,
• - eine Auslassleitung zwischen Filter und Auslass sowie ein in der Auslassleitung wirkendes, elektrisches schaltbares, stromabwärtiges Ventil,
• - eine Spülzuleitung mit einem zugeordneten Spülzulaufventil, die zwischen Filter und stromabwärtigem Ventil abzweigt, zum Zuführen von Wasser bei einem Spülvorgang, sowie
• - eine Spülableitung, die vom Filter abzweigt und zu einem Spülwasserauslass führt sowie ein der Spülableitung zugeordnetes, elektrisch betätigbares Spülablaufventil trägt.

This is achieved by a water treatment module, with an inlet for water to be filtered and an outlet for filtered water and with a common carrier, the

• - a replaceable filter,
• - a feed line between the inlet and the filter and an electrically switchable upstream valve acting in the feed line,
• - an outlet line between the filter and the outlet as well as an electrically switchable downstream valve acting in the outlet line,
• - A flushing feed line with an assigned flushing inlet valve, which branches off between the filter and the downstream valve, for supplying water during a flushing process, as well
• - A flushing drain that branches off from the filter and leads to a flushing water outlet and carries an electrically actuated flushing drain valve assigned to the flushing drain.

The water treatment module according to the invention has a common carrier for numerous units that sit on this carrier. The carrier allows the entire module to be pre-assembled at the factory and then only on the building side, e.g. B. to attach to a wall and to couple appropriate connections. The entire piping within the water treatment module, which according to the invention is no longer necessary at all or only to a small extent, can be carried out at the factory by the manufacturer of the water treatment module. This also enables a more compact design.

The carrier has, for example, a front wall to be mounted on the wall with a front side visible in the mounted state and an opposite rear side, with maintenance parts being arranged on the front wall and being non-destructively dismantled from the front and maintenance-free parts being positioned on the rear. This creates a particularly functional structure, because the maintenance-free parts are protected and protected from unwanted access by inexperienced persons, whereas the maintenance parts, which are subject to regular maintenance or manual operation, are easily accessible from the front.

According to a preferred embodiment, maintenance parts are manually operable valve drives and filters, e.g. via a hand lever, whereas maintenance-free parts are the valves themselves, their non-manually operable drives and sensors. These are not serviced, but only replaced in the rare event of a defect.

In a variant of the invention, the front wall has, in side view, a central filter section close to the wall and an upstream section which is further away from the wall than the filter section and a downstream section which is provided at an opposite end of the front wall and which is further from the wall than the filter section, with the maintenance-free parts in the upstream and downstream sections positioned on the rear. This configuration of the front wall simultaneously acts as a partition wall and ensures compact accommodation in relation to the thickness of the water treatment module, that is to say measured perpendicular to the wall.

In a side view, the front wall can each have a step between the filter section and the upstream section and between the filter section and the downstream section. For example, the front wall for this purpose is a metal sheet which is bent twice at right angles to form an upstream section and is correspondingly bent to form a downstream section. This also creates a high degree of compactness.

In order to achieve a high level of safety for the water treatment module, the upstream valve can only be manually moved into an open position after electrical initiation in the event of a malfunction. It is therefore assumed that the electrical initiation in the event of a malfunction always entails observation of the water treatment module by personnel. The staff can only return the water treatment module to its initial state if they manually move the correspondingly triggered valves into the open position on site. However, these valves can optionally be moved electrically reversibly into the open and closed position outside of a malfunction.

A variant of the execution of a correspondingly working valve is a ball valve with a hand lever. The ball valve is operated by an electric valve drive, the hand lever on the ball valve then enables it to be returned to the starting position.

An electrically operated ball valve can advantageously be flown against in two directions. In addition, a ball valve has the advantage that it does not open unintentionally when pressure is applied, which can be a certain risk with solenoid valves.

Upstream and downstream of the filter, one or at least one pressure sensor and one or more flow sensors can be provided. These sensors are coupled to a controller which is set up in such a way that it activates valves after a malfunction has been detected. If, for example, a flow sensor for measuring the flow is present upstream of the filter, a low flow value can give an indication of a filter clogged with particles. If a pressure sensor is also present upstream and downstream of the filter, a pressure difference can be determined from the measured values. If this pressure difference exceeds a value stored in the control, this is an indication of possible cracks in the membrane. The pressure difference is measured after the system has been supplied with compressed air via a compressed air connection.

In order to completely save or greatly minimize piping, an inlet block body is provided upstream of the filter and an outlet block body is provided downstream of the filter and is seated on the carrier. These block bodies are traversed by cables. These lines are usually produced through bores in the respective block body, although a cast variant or a variant produced by generative production is also possible. The inlet block body has the inlet line and can also contain further lines. The outlet line, the flushing feed line and at least sections of the flushing drainage line run in the outlet block body. The compactness is also increased by such block bodies.

In addition, the block bodies allow valves and sensors to be connected directly to the inlet block body and outlet block body in a simple manner, for example by cutting threads or providing sensor holes.

The invention also relates to a water treatment system with several adjacent water treatment modules according to the invention. These water treatment modules have a common control. The rinsing lines of at least two water treatment modules are connected to one another via a line so that in the event of backwashing, filtered water can be passed from one water treatment module into the other water treatment module for backwashing and vice versa.

The controller is set up so that when a filter blocked with particles is detected, the upstream and downstream valves of the assigned water treatment module are closed and the flushing inlet valve and the flushing drain valve of the assigned water treatment module and the flushing inlet valve in a connected water treatment module are opened and its downstream valve is closed.

Sampling valves can also be accommodated in the inlet block body and the outlet block body, which likewise reduces the amount of piping.

• - 1 eine Seitenansicht eines erfindungsgemäßen Wasseraufbereitungsmoduls,
• - 2 eine Rückansicht des Wasseraufbereitungsmoduls nach 1,
• - 3 eine Frontansicht auf das Wasseraufbereitungsmodul nach 1,
• - 4 einen Eingangsblockkörper, der beim Wasseraufbereitungsmodul nach 1 eingesetzt wird,
• - 5 einen Ausgangsblockkörper in Draufsicht, der bei dem Wasseraufbereitungsmodul nach 1 eingesetzt wird,
• - 6 eine Perspektivansicht von schräg oben des Ausgangsblockkörpers nach 5, und
• - 7 eine perspektivische Ansicht von schräg unten des Ausgangsblockkörpers nach 5.

Further features and advantages of the invention emerge from the following description and from the following drawings, to which reference is made. In the drawings show:

• - 1 a side view of a water treatment module according to the invention,
• - 2 a rear view of the water treatment module according to 1 ,
• - 3 a front view of the water treatment module according to 1 ,
• - 4th an inlet block body that follows the water treatment module 1 is used,
• - 5 an output block body in plan view, which in the water treatment module according to 1 is used,
• - 6th a perspective view obliquely from above of the starting block body according to 5 , and
• - 7th a perspective view from obliquely below the output block body according to 5 .

In 1 is a water treatment module 10 shown with an inlet 12 and an opposite outlet 16 as well as an interposed, exchangeable and backwashable filter 18th .

All of the following parts, including the filter 18th , are on a carrier 20th attached so that the water treatment module is completely assembled at the factory as in 1 shown.

In the side view according to 1 can be seen that the carrier 20th a flat front wall formed by a thin sheet of metal 22nd with a back 24 and a front 26th has, the water treatment module 10 with the back 24 is screwed to a wall or a frame.

The front wall 22nd has several sections, namely a filter section 28 that is the section of the front wall that is furthest to the right, that is, to the wall 22nd represents and in its area on the front side the filter 18th lies.

1 shows the normally wall-mounted condition in which the inlet 12 above and the outlet 16 lying down.

The front wall 22nd possesses at the top of the filter section 28 a ledge that jumps away from the wall 30th formed by two right-angled arcs or kinks. After the paragraph 30th runs the front wall 22nd further spaced from the wall upwards and here forms an upstream section 32 . At the opposite end is a corresponding downstream section, also further away from the wall 34 the front wall 22nd formed, which also has a paragraph 36 with the central filter section 28 connected is.

On the back of the upstream section 32 is an entrance block body 38 and on the back of the downstream section 34 is a starting block body 40 attached. These are in the 4th to 7th to see in detail.

The two block bodies 38 , 40 close to their heels 30th , 36 immediately.

With reference to the 1 to 3 the flow path and additional parts of the water treatment module are now described.

The inlet 12 is also the inlet of a rear of the upstream section 32 mounted upstream valve 42 which is a front of the section 32 attached valve drive 44 having. The upstream valve 42 is immediately on the entrance block body 38 connected, in an in 4th opening shown 46 .

The valve 42 along with its drive 44 form an electrically operated valve, which is connected to a controller 48 is coupled. This control 48 is coupled to all valves and sensors that are described below. To improve clarity, the corresponding electrical lines are not shown. The electrically operated valve 42 is designed as an electrically activatable ball valve that is designed so that it can be opened and closed electrically, but can only be opened manually in a detected fault mode after it has been electrically closed, namely via a hand lever 50 .

From the inlet 12 at an inlet pipe begins 52 that on the filter 18th ends and through the valve 42 leads.

As in 4th can be seen, runs through part of the feed line 52 the entrance block body 38 and ends at an opening 54 that immediately the paragraph 30th connects. In this opening 54 is a pipe fitting 56 , please refer 3 , attached, which has a counterpart on the filter 18th and also has a section of the feed line 52 represents. The pipe fitting 56 can be detached from the front of the front wall 22nd to the filter 18th to exchange.

There is also a temperature sensor on the input block body 58 , a pressure sensor 60 as well as a flow sensor 62 attached, all of which are data on the condition of the water in the inlet pipe 52 can deliver.

From the inlet pipe 52 There is also a sampling valve 64 away that with a tube 66 connected, through which water can be taken for a sample. There is also a compressed air connection 68 available, via which compressed air can possibly be introduced into the water treatment module to ensure the functionality of the filter 18th to check.

The filter 18th is about a fitting 70 which to the paragraph 36 and which leads to changing the filter 18th is releasable, in terms of flow with the exit block body 40 coupled. The fitting 70 closes directly on an opening 72 , please refer 5 , in the starting block body 40 at. An outlet line 74 , which with the fitting 70 starts and at the outlet 16 ends, runs through the starting block body 40 up to an opening 76 , to which a connector 78 , please refer 2 , which is the output 16 Has.

In the outlet line 74 an electrically operated downstream valve acts 80 (please refer 5 ), which is the outlet line 74 depending on the signals from the controller 48 can open and close reversibly.

In addition, there is a temperature sensor 82 in the outlet line 74 effective, which is also on the starting block body 40 is attached.

From the outlet line 74 branches upstream of the valve 80 a flushing line 84 starting at an opening 86 begins. In the flushing line 84 act as a flow sensor 88 and a pressure sensor 90 both at the exit block body 40 are attached.

In the area of the opening 86 is a flush inlet valve 92 (please refer 2 ) attached, which as well as the valve 42 by a drive 94 (please refer 3 ) is electrically operated reversibly in both directions, but which can only be moved into the open position by manual operation after a malfunction, e.g. B. by means of a hand lever 50 (please refer 3 ).

Regarding 3 is at the bottom of the filter 18th a flush drain 96 connected to the paragraph with a fitting 36 adjoins and into the exit block body 40 to the opening 98 (please refer 5 ) connected. The irrigation drain 96 then extends in the starting block body 40 into a section 100 further, in which an electrically operated flush drain valve 102 works.

The section 100 is within the starting block body 40 in the area of the flushing drain valve 102 angled and has a flushing water outlet on the back 104 for rinsing water (see 3 and 7th ). There is also a sampling valve on the back 106 with an outlet tube 108 , which from the outlet pipe 74 goes out.

How to use the 1 to 3 can see, the maintenance parts that require frequent access during operation, including manually operated parts, are all from the front 26th the front wall 22nd immediately accessible.

These maintenance parts are the two valve actuators 44 , 94 that can be manually returned to the starting position, as well as the filter 18th .

The exclusively electrically operated valves 80 , 102 are, however, just like the valves 42 and 92 back of the front wall 22nd in the resulting space between the front wall 22nd and the wall on which the water treatment module is mounted and thus protected against misuse. These parts together with the sensors, which are also on the back of the front wall 22nd are mounted, form the maintenance-free parts.

To protect the filter 18th can side of the filter section 28 also side walls 110 (please refer 1 ) so that the carrier 20th here has a U-shaped cross section. The side walls 110 also stabilize the wearer 20th .

Two separate, identically designed water treatment modules are required to form a water treatment system 10 mounted next to each other and flow-wise via a pipe 103 (here a pipe, see 2 ) connected, which are the outlets of the two flushing inlet valves 92 directly connects with each other. Only for the sake of standardization are the water treatment modules coupled to one another 10 both valves 92 referred to as flushing inlet valves. Of course, when backwashing occurs, one module has the rinsing inlet and one module has the rinsing outlet, always depending on the current direction of flow. One can look at the water treatment situation like a compilation of the 2 and 3 imagine the ones in the 2 and 3 sections of the line shown 103 merge. Of course, they are identical water treatment modules 10 in use, which are also aligned in the same way, and not as with the 2 and 3 lie next to each other alternately on the front and back.

The functionality of the water treatment system is explained below. Tap water will go to one or both of the inlets 12 guided. Via the controller 48 usually becomes one of the drives 44 activated so that the corresponding valve 42 a water treatment module 10 is opened.

The water flows through the filter 18th and comes through the fitting 70 into the outlet line 74 to open the water treatment module 10 at the outlet 16 to leave. The flush inlet valves are in this normal mode 92 Both water treatment modules are closed, as are the flushing drain valves 102 .

Furthermore, a non-return valve (not shown) can also be present in the entire line routing, which prevents water from flowing back from the filter 18th prevented.

Via the sampling valves 64 , 106 samples can be taken in order to check the water quality and thus the functionality and effectiveness of the filter system by means of a laboratory analysis.

Using the flow sensor 62 the flow is monitored. If a flow rate is determined that is below one in the controller 48 stored limit, it is assumed that the filter 18th is added with particles. The control 48 then locks via the drive 44 the valve 42 so that no water can flow in. It is now using purified water from the adjacent water treatment module 10 the filter 18th backwashed, ie, flows through against the normal flow direction. This is also done by the valve 80 via the controller 48 closed, and the two flushing inlet valves 92 of the coupled water treatment modules 10 are via the corresponding drives 94 open, as well as the flushing drain valve 102 , which the filter to be backwashed 18th assigned. Then water flows out of the adjacent water treatment module 10 over (see 5 ) the flush inlet valve 92 , the flow sensor 88 and the flushing line 84 , the opening 72 , the fitting 70 into the filter 18th to flow through it in the opposite direction. Particles get into the flush drain with the water 96 to the starting block body 40 where you can use the flushing water outlet on the back 104 leave

After backwashing, the hand levers must then be used 50 operated to the appropriate valves 42 to bring it back into the open position. During the rewinding process, the supply of the purified water from the adjacent water treatment module is also monitored by means of the flow sensor 88 in the water treatment module of the filter to be cleaned 18th supervised. In both water treatment modules 10 becomes the respective downstream valve during the backwashing process 80 closed so that the water can find its way through the flushing line 84 to the water treatment module to be cleaned.

After the backwashing, the flushing inlet valves 92 via the controller 48 closed again automatically.

The individual water treatment modules 10 can also be flushed individually in the normal flow direction. This is done using the downstream valves 80 closed and the flushing drain valves 102 open. Then water flows through the respective filter 18th and gets over the section 100 and the flush drain valve 102 to the flushing water outlet 104 . This rinsing process is particularly useful after a water treatment module has been idle for a long time 10 initiated.

The assembly of the water treatment system at a customer is very easy. Two water treatment modules, which are factory-installed, are simply placed next to one another; if necessary, they are already attached to one another and via a line 103 coupled together. Then only the inlet water, flushing water outlet and the outlet have to be 16 for purified water.

To find out if the filter 18th is possibly defective, compressed air is supplied via the compressed air connection 68 into the water treatment module 10 blown. This is done via the pressure sensors 60 , 90 upstream and downstream of the filter 18th a too high differential pressure measured, which points to possible cracks in the membrane of the filter 18th or any other faulty function of the filter 18th Inferred, the drives are controlled via the control 44 , 94 operated to the appropriate valves 42 , 92 close. The system must then be serviced.

List of reference symbols

10

Water treatment module

12th

inlet

16

Outlet

18th

filter

20th

carrier

22nd

Front wall

24

back

26th

front

28

Filter section

30th

paragraph

32

upstream section

34

downstream section

36

paragraph

38

Entrance block body

40

Exit block body

42

upstream valve

44

Valve drive

46

opening

48

control

50

Hand lever

52

Feed line

54

opening

56

Pipe fitting

58

Temperature sensor

60

Pressure sensor

62

Flow sensor

64

Sampling valve

66

tube

68

Compressed air connection

70

fitting

72

opening

74

Outlet pipe

76

opening

78

Connector

80

downstream valve

82

Temperature sensor

84

Flushing line

86

opening

88

Flow sensor

90

Pressure sensor

92

Flush inlet valve

94

Valve drive

96

Irrigation drain

98

opening

100

section

102

Flush drain valve

103

management

104

Flush water outlet

106

Sampling valve

108

Outlet tube

110

side walls

Claims (12)

Water treatment module, with an inlet (12) for water to be filtered and an outlet (16) for filtered water and a common carrier (20), the - a replaceable filter (18), - a feed line (52) between the inlet (12) and filter (18) and an electrically switchable upstream valve (42) acting in the feed line (52), - An outlet line (74) between filter (18) and outlet (16) and an electrically switchable downstream valve (80) acting in the outlet line (74), - A flushing feed line (84) with an associated flushing feed valve (92), the flushing feed line (84) branching off between the filter (18) and the downstream valve (80) for supplying water during a backwashing process, and - A flushing discharge line (96) which branches off from the filter (18) and leads to a flushing water outlet (104) and carries an electrically actuable flushing drain valve (102) assigned to the flushing discharge line (96). Water treatment module according to Claim 1 , characterized in that the carrier (20) has a front wall (22) to be fastened to the wall with a front side (26) visible in the assembled state and an opposite rear side (24), with maintenance parts being arranged on the front wall (22) and non-destructive from the front can be dismantled and maintenance-free parts are positioned on the back. Water treatment module according to Claim 2 , characterized in that maintenance parts of the filter (18) and mechanically operated valve drives (44, 94) are. Water treatment module according to Claim 2 or 3 , characterized in that maintenance-free parts, valves, purely electrically operated drives for valves and sensors. Water treatment module according to one of the Claims 2 to 4th , characterized in that the front wall (22) in side view has a central filter section (28) close to the wall and an upstream section (32) which is further from the wall than the filter section (28) and one at the opposite end the front wall (22) has a downstream section (34) which is further away from the wall than the filter section (28), the maintenance-free parts in the upstream and downstream sections (32, 34) on the rear side of the front wall (22) are positioned. Water treatment module according to Claim 5 , characterized in that the front wall (22) in side view between the filter section (28) and the upstream and downstream sections (32, 34) each has a shoulder (30, 36). Water treatment module according to one of the preceding claims, characterized in that the upstream valve (42) can only be manually moved into an open position after electrical initiation in the event of a malfunction. Water treatment module according to one of the preceding claims, characterized in that a pressure sensor (60, 90) is provided upstream and downstream of the filter (18) and / or a flow sensor is provided upstream of the filter (18), the sensors being coupled to a controller which is set up in such a way that it activates valves when a malfunction is detected. Water treatment module according to one of the preceding claims, characterized in that upstream of the filter (18) an inlet block body (38) and downstream of the filter (18) an outlet block body (40) are traversed by lines, with at least one in the inlet block body (38) Section of the inlet line (52) and in the outlet block body (40) at least sections of the outlet line (74), the flushing feed line (84) and the flushing discharge line (96) run. Water treatment module according to Claim 9 , characterized in that the valves (42, 80, 92, 102) and sensors are directly connected to the inlet block body (38) and the outlet block body (40). Water treatment system with several adjacent water treatment modules (10) according to one of the preceding claims, characterized in that the water treatment modules (10) have a common control (48) and the flushing lines (84) of the water treatment modules (10) are connected to one another via a line (103) . Water treatment plant after Claim 11 , characterized in that the controller (48) is set up so that when a filter (18) blocked with particles is detected in a water treatment module (10), it closes the associated upstream and downstream valves (42, 80) and the flushing inlet valve ( 92) and the flushing drain valve (102) of the associated water treatment module (10) opens and the flushing inlet valve (92) in the connected water treatment module (10) opens and the downstream valve (80) closes.

Images