DE102016006730B4 - Parcel shipping unit with liquid treatment device - Google Patents

Abstract

Parcel shipping unit (10) with a shipping housing (11) forming a device housing (11) of a liquid treatment device (30), - the shipping housing (11) having a housing wall (21) with an end wall (22) and a handle arranged on the end wall (22) (14), - wherein the liquid treatment device (30) has a liquid inlet unit (35) penetrating the end wall (22) of the shipping housing (11) and at least one outlet unit (36) penetrating the end wall (22), - wherein the liquid inlet unit (35) has an inlet coupling element (41) fastened to the end wall (22) with an integrated, spring-loaded locked shut-off valve (46) which can be unlocked by means of a feed connector (101), - the at least one outlet unit (36) having an outlet coupling element fastened to the end wall (22) (52; 59) with an integrated, spring-loaded locked and by means of an outlet connection piece ( 102) has releasable closure valve (57), - wherein the liquid inlet unit (35) and the at least one outlet unit (36) are arranged within the envelope contour of the shipping housing (11) and - wherein the liquid treatment device (30) has an adsorption filter device (64) and one of the Adsorption filter device (64) comprises downstream membrane filtration device (68), chemical treatment device and / or electrochemical processing device.

Description

The invention relates to a parcel shipping unit with a shipping housing forming a device housing of a liquid treatment device, the shipping housing having a housing wall with an end wall and a handle arranged on the end wall.

From the DE 20 2014 103 684 U1 a packaging unit for regenerants of a water treatment device is known. To operate the device, the customer has to regularly pour the regenerant into this device.

The DE 29 45 317 A1 discloses a membrane stack designed as a shipping unit. This must be replaced by the user when servicing the water treatment system.

The U.S. 5,108,598 A and the US 2013/0264 265 A1 disclose replaceable filter cartridges, the quick-release coupling elements of which protrude beyond the cartridges. When transporting a package, the coupling elements can be damaged or tear off. The exposed coupling elements can also be pushed open by other parcel shipping units.

The DE 10 2008 028 051 A1 discloses a pressure vessel disposed in a carrying case with a bulkhead handle. Quick-release coupling elements protrude from the carrying case on opposite side walls of the carrying case. In this embodiment there is a risk of injury and damage.

The present invention is based on the object of developing a parcel shipping unit which considerably simplifies the maintenance effort for the customer.

This problem is solved with the features of the main claim. For this purpose, the liquid treatment device has a liquid inlet unit penetrating the end wall of the shipping housing and at least one outlet unit penetrating the end wall. The liquid inlet unit has an inlet coupling element fastened to the end wall with an integrated, spring-loaded locked shut-off valve which can be unlocked by means of a feed connector. The at least one outlet unit has an outlet coupling element fastened to the end wall with an integrated, spring-loaded locked shut-off valve that can be unlocked by means of an outlet connector. The liquid inlet unit and the at least one outlet unit are arranged within the envelope contour of the shipping housing. The liquid treatment device comprises an adsorption filter device and a membrane filtration device, chemical treatment device and / or electrochemical treatment device connected downstream of the adsorption filter device.

The present invention discloses a parcel shipping unit, the shipping housing of which forms a device housing. Here, the dimensions of the shipping housing are smaller than or equal to the dimensions permitted for package transport. The mass of the device that can be carried by one person corresponds at most to the permissible mass of a package. The device is sent to the customer as a parcel shipping unit. This parcel shipping unit is not opened to operate the device. A liquid inlet and one or more output connections are connected to the outside of the parcel shipping unit by means of e.g. self-closing, drip-free quick-release couplings connected. For the regular maintenance of the components of the liquid treatment device, which is due for hygienic reasons, the connecting lines are removed by disconnecting the quick-release couplings. The still locked parcel shipping unit is sent to the manufacturer or supplier e.g. sent back by a parcel service. There is no need for customer maintenance. This means that there is no health risk to the operator when changing filters.

• 1: Paketversandeinheit;
• 2: Schnitt der Gehäusewandung;
• 3: Detail des Versandgehäuses bei geöffnetem Deckel;
• 4: Detail der Stirnseite des Versandgehäuses;
• 5: Schaltplan einer Flüssigkeitsaufbereitungsvorrichtung.

Further details of the invention emerge from the subclaims and the following description of schematically illustrated embodiments.

• 1 : Parcel shipping unit;
• 2 : Section of the housing wall;
• 3 : Detail of the shipping case with the lid open;
• 4th : Detail of the front of the shipping case;
• 5 : Circuit diagram of a liquid treatment device.

The 1 shows a parcel shipping unit ( 10 ). Such parcel shipping units ( 10 ) are transported from the sender to the recipient using parcel services. For transport as a parcel, the parcel shipping units ( 10 ) Do not exceed the maximum dimensions and masses. So the maximum allowable length is 1200 Millimeters, the maximum width 600 Millimeters and the maximum height also 600 millimeters. The girth, which is the sum of the longest side, twice the width and twice the height, must not exceed a value of 3600 millimeters for most parcel services. The maximum permissible mass of a parcel shipping unit ( 10 ) is 31.5 kilograms. In addition, stable outer packaging is required for damage-free parcel shipping.

The ones in the 1 Parcel shipping unit shown ( 10 ) has, for example, a cuboid shipping housing ( 11 ). This is for example a suitcase ( 11 ), a case shell ( 12 ) and a hinged case lid ( 13 ) having. The suitcase ( 11 ) is made from a UV-resistant, impact-resistant plastic, for example. The shipping case ( 11 ) in the exemplary embodiment has a length of 480 millimeters, a width of 415 millimeters and a height of 150 millimeters. Its empty weight is, for example, 4.4 kilograms, its maximum mass 16.5 kilograms. The shipping case ( 11 ) has a foldable handle ( 14th ), which can be locked in the folded-down state. The parcel shipping unit ( 10 ) can easily be carried by a single person and can be sent as a package by a parcel service. If necessary, the case ( 11 ) have additional roles and / or a pull-out and lockable handle, for example. The parcel shipping unit shown ( 10 ) is closed and, for example, by means of a seal ( 15th ) secured against unauthorized opening. On the case lid ( 13 ) is in the representation of the 1 an address label ( 16 ) glued.

The shipping case ( 11 ) is sealed, for example, dust-tight. The interior ( 17th ) of the shipping case ( 11 ) is protected against moisture when immersed in water. Between the case shell ( 12 ) and the case lid ( 13 ) is in the representation of the 3 a sealing element ( 18th ) arranged. Furthermore, the shipping case ( 11 ) a pressure equalization device ( 19th ) to show the pressure in the interior ( 17th ) to the pressure of the environment ( 1 ) adapt.

The case shell ( 12 ) and the case lid ( 13 ) form a housing wall ( 21st ) of the shipping case ( 11 ). The area of the housing wall ( 21st ) on which the handle ( 14th ) is arranged in the following as the end wall ( 22nd ) designated.

On the front wall ( 22nd ) in the exemplary embodiment four are the housing walls ( 21st ) penetrating bushing units ( 31 ) attached. For example, the implementation units ( 31 ) an external thread each ( 32 ), which is secured by means of two hexagon nuts each counter-locked ( 33 , 34 ) in the interior ( 17th ) and on the outside of the shipping case ( 11 ) is fixed, cf. the 2 and 3 . Furthermore, on the front wall ( 22nd ) an electrical connection ( 23 ) be arranged. All implementation units ( 31 ) are completely within the envelope contour of the shipping housing ( 11 ) arranged. The envelope contour is, for example, the cuboid contour that the outer surfaces of the shipping housing ( 11 ) affects. If necessary, the feed-through units ( 31 ) in recesses in the shipping case ( 11 ) to sit. In the exemplary embodiment, the feed-through units ( 31 ) also within an envelope contour, the corners of which are sloping or rounded.

The 2 shows a sectional view of the housing wall ( 21st ) with the feed-through units ( 31 ). In the 3 is the shipping case ( 11 ) with the case lid open ( 13 ) shown. The 4th shows, for example, details of a top view of the front wall ( 22nd ).

The implementation units ( 31 ) are parts of a liquid treatment device ( 30th ), their device housing ( 11 ) through the shipping case ( 11 ) is formed. The 5 shows an example of the circuit diagram of a liquid treatment device ( 30th ). Such liquid treatment devices ( 30th ) are used to remove impurities from a liquid. The purified liquid prepared in this way can then be used for purposes for which the original, contaminated liquid would be harmful. The liquid can be, for example, water, oil, hydrocarbon, etc. In the exemplary embodiment, water is used as the liquid.

The implementation units ( 31 ) are in the exemplary embodiment a liquid inlet unit ( 35 ) and three outlet units ( 36 ). In the exemplary embodiment, the outlet units ( 36 ) a filter outlet unit ( 37 ), a concentrate outlet unit ( 38 ) and a permeate outlet unit ( 39 ). The shipping case ( 11 ) has at least one outlet unit ( 36 ) on. With a version of the shipping housing ( 11 ) with a single outlet unit ( 36 ) this is a filter outlet unit ( 37 ). Identifies the shipping case ( 11 ) two outlet units ( 36 ), for example one outlet unit ( 36 ) a concentrate outlet unit ( 38 ) and the other outlet unit ( 36 ) is a permeate outlet unit ( 39 ). Also a version with a filter outlet unit ( 37 ) and a mixed liquid outlet unit is conceivable.

The liquid inlet unit ( 35 ) has an inlet coupling element ( 41 ) and one inside the housing ( 17th ) arranged check valve ( 42 ), see. 5 , on. The inlet coupling element ( 41 ) is a drip-free lockable quick coupling element ( 41 ). It has a receiving recess ( 43 ), which is, for example, non-cylindrical. In the representation of the 4th has the receiving recess ( 43 ) of the inlet coupling element ( 41 ) a e.g. semicircular coding recess ( 44 ) as well as a centripetally aligned centering nose offset by 45 degrees ( 45 ). Another design of the receiving recess ( 43 ) is conceivable.

In the inlet coupling element ( 41 ) is a shut-off valve ( 46 ) integrated. This has, for example, a valve disc ( 47 ), which in the uncoupled state the bottom of the receiving recess ( 43 ) closes. The valve disc ( 47 ) is by means of a compression spring ( 48 ) in the closing direction ( 49 ) charged. The valve disc ( 47 ) against the locking direction ( 49 ) and against the spring force of the compression spring ( 48 ) axially displaceable. This is done, for example, by inserting a device into the receiving recess ( 43 ) inserted, complementarily coded feed connector ( 101 ), e.g. a plug ( 101 ). When moving the valve disc ( 47 ) the closing valve ( 46 ) unlocked. The inlet coupling element ( 41 ) is opened, cf. 2 . The inlet coupling element ( 41 ) additional locking elements ( 51 ) to the inserted plug ( 101 ) to fix. Fixing by means of a screw or bayonet lock is also conceivable. The plug ( 101 ) can be designed with a closure valve that can be opened when it is inserted.

The e.g. spring-loaded check valve ( 42 ) is in the direction of flow ( 91 ) the inlet coupling element ( 41 ) downstream. It opens in the direction of flow ( 91 ) and locks in the opposite direction.

The filter outlet unit ( 37 ) has a similar structure to the liquid inlet unit ( 35 ). As the 4th shows, the receiving recess ( 53 ) of the filter coupling element ( 52 ) a coding which is not congruent with the coding of the inlet coupling element ( 41 ). The in the filter coupling element ( 52 ) plug-in outlet connector ( 102 ) is therefore only possible with this outlet coupling element ( 52 ) can be coupled.

The check valve ( 54 ) the filter outlet unit ( 37 ) is the filter coupling element ( 52 ) in the direction of flow ( 91 ) upstream. This check valve ( 54 ) is spring-loaded. It opens in the direction of flow ( 91 ) and closes in the opposite direction.

The concentrate outlet unit ( 38 ) and the permeate outlet unit ( 39 ) including the associated check valves ( 55 , 56 ) are constructed like the filter outlet unit ( 37 ). In the 2 is the permeate outlet unit ( 39 ) with closed valve ( 57 ) shown. The coding of the receiving recesses ( 58 ) is designed in such a way that the associated plug is only inserted into the associated coupling element ( 59 ) can be used.

On the front wall ( 22nd ) is still the electrical connection ( 23 ) arranged. This is designed, for example, as an internal plug for connecting the socket of a low-voltage direct current source. The voltage source supplies, for example, a current of 5 amps and a voltage of 12 volts or 24 volts. The electrical connection ( 23 ) is, for example, dustproof and can be sealed against immersion in water. In the exemplary embodiment, the electrical connection ( 23 ) a cam ( 24 ). The shipping case ( 11 ) can also be used without an electrical connection ( 23 ) be trained.

In the interior ( 17th ) of the device housing ( 11 ) are in the embodiment a booster pump ( 61 ), a mechanical pre-filter device ( 63 ), an adsorption filter device ( 64 ), a membrane filter device ( 68 ) as well as a mechanical fine filter device ( 83 ) arranged. The liquid treatment device ( 30th ) can also be used without the booster pump ( 61 ), the pre-filter device ( 63 ) and / or the fine filter device ( 83 ) be executed.

In the representation of the 5 is the booster pump ( 61 ) the liquid inlet unit ( 35 ) downstream. The booster pump ( 61 ) is, for example, a gear pump that increases the pressure of the inflowing liquid to, for example, 4 * 10 ⁵ Newtons per square meter ( 4th bar). The booster pump ( 61 ) can be driven electrically. For example, it is connected to the electrical connection ( 23 ) connected. A manually operated drive, for example by means of a hand crank or the drive by means of a dynamo, etc., is also conceivable. The booster pump ( 61 ) be designed in such a way that it can be driven both electrically and - for example in the absence of electrical energy - manually. The booster pump ( 61 ) a dirt filter can be connected upstream.

On the line ( 92 ) is still the shut-off valve of a leakage sensor ( 62 ) arranged. For example, if the moisture content of a device in the device housing ( 11 ) lying sponge a limit value, the shut-off valve blocks the line ( 92 ).

The booster pump ( 61 ) is in the direction of flow ( 91 ) the mechanical pre-filter device ( 63 ) downstream. The pre-filter device ( 63 ) comprises in the exemplary embodiment a filter housing with a sediment filter inserted therein. This has, for example, a filter area of half a square meter and a filter fineness of 5 to 10 micrometers. The filter fineness of the pre-filter device ( 63 ) is greater than 1 micrometer and less than 50 micrometers. The filter element is made of stainless steel, a thermoplastic plastic, etc., for example. At a flow rate of 40 liters per minute, for example, it causes a pressure loss of 10 ³ Newtons per square meter (0.01 bar). It is It is also conceivable to design the sediment filter in several stages with the filter fineness increasing in the direction of flow. For example, the mean filter fineness of the pre-filter device is then ( 63 ) in the above interval. The pre-filter device ( 63 ) can be designed to be flushable.

In the direction of flow ( 91 ) follows the pre-filter device ( 63 ) the adsorption filter device ( 64 ). This includes, for example, an activated carbon filter inserted in a filter housing. The adsorption filter device ( 64 ) have an afterfilter downstream of the activated charcoal filter and optionally a prefilter. The activated carbon filter can be flowed through axially or radially. The adsorption material can be configured as carbon granules or as a carbon block. When a liquid flows through, organic and inorganic contaminants, such as odorous substances, flavorings, bacteria, etc., accumulate on the activated carbon filter. The prefilter is made of a polyester fleece, for example. The secondary filter is made, for example, of a thermoplastic material and has a filter fineness of, for example, 5-10 micrometers. If the activated carbon filter is made from a porous carbon block, it can be made without a pre-filter and without a post-filter. Another embodiment of the adsorption filter device ( 64 ) is conceivable.

In the adsorption filter unit ( 64 ) an ultra-fine filter connected downstream of the activated carbon filter can also be integrated. This has, for example, a filter fineness between 0.25 micrometers and 0.1 micrometers.

In the exemplary embodiment, the filter output is ( 65 ) the adsorption filter device ( 64 ) with a T-piece ( 66 ) connected. Another connection of this T-piece ( 66 ) is to the check valve ( 54 ) the filter outlet unit ( 37 ) connected. In one version of the liquid treatment device ( 30th ) with a single outlet unit ( 36 ) the T-piece ( 66 ) are omitted. The filter output ( 65 ) is then directly connected to the filter outlet unit ( 37 ) connected. The filter outlet unit ( 37 ) an ultra-fine filter can also be connected upstream to clean the filtered water. This has, for example, a filter fineness between 0.01 micrometers and 0.05 micrometers. For example, a filter fineness of 0.02 micrometers is selected for the ultra-fine filter. You can also choose between the adsorption filter device ( 64 ) and the fine filter or the filter outlet unit ( 37 ) a pressure accumulator can be arranged.

To the third connection ( 67 ) of the T-piece ( 66 ) is in the in the 5 shown water treatment device ( 30th ) in the direction of flow ( 91 ) the membrane filtration device ( 68 ) connected. The membrane filter device ( 68 ) in the exemplary embodiment is a reverse osmosis device ( 68 ). This includes a membrane unit ( 69 ), a permeate check valve ( 76 ), a shut-off valve ( 77 ) and a flow limiting valve ( 81 ).

The membrane unit ( 69 ) is arranged in a container. A fine-pored membrane ( 71 ) a first liquid space ( 72 ) from a second liquid space ( 73 ) from. In the exemplary embodiment, the absolute value of the filter fineness of the membrane is ( 71 ) 5 microns. The first liquid space ( 72 ) is the T-piece ( 66 ) downstream. The membrane made from polyamide ( 71 ) is designed, for example, for a flow rate of 15 liters per hour and requires a pre-pressure of 3.4 bar.

The output connector ( 74 ) of the first liquid space ( 72 ) is connected to the shut-off valve ( 77 ) connected. The shut-off valve ( 77 ) has two parallel flow paths ( 78 , 79 ), which are hydraulically hermetically separated from each other. The output connector ( 74 ) is at the first flow path ( 78 ) connected. The second liquid space ( 73 ) is via a second output connection ( 75 ) with the second flow path ( 79 ) connected. In the shut-off valve ( 77 ) the second flow path ( 79 ) a flow-dependent switch, whose signal blocks or enables the first flow path. For example, if a maximum pressure value is exceeded or if the flow rate falls below a minimum value in the second flow path ( 79 ) becomes the first flow path ( 78 ) blocked. The blocking occurs, for example, when the permeate outlet unit is closed ( 39 ).

In the first flow path ( 78 ) is the shut-off valve ( 77 ) a flow limiting valve ( 81 ) downstream. This can be set, for example, to a flow rate between 350 milliliters and 1200 milliliters per minute. In the exemplary embodiment, it is set to a value of 500 milliliters per minute. The maximum flow value of the flow limiting valve ( 81 ) can be preset within the above interval. But it is also conceivable that this limit value in the water treatment device ( 30th ) is infinitely variable or adjustable in steps. For example, on the front wall ( 22nd ) of the device housing ( 11 ) an adjusting device can be arranged. The flow limiting valve ( 81 ) is in the direction of flow ( 91 ) the concentrate outlet unit ( 38 ) downstream.

In the second flow path ( 79 ) is the shut-off valve ( 77 ) in the direction of flow ( 91 ) a pressure vessel ( 82 ) downstream. In the exemplary embodiment, this has a volume of five liters.

To the outlet of the pressure vessel ( 82 ) is the fine filter device ( 83 ) connected. The fine filter device ( 83 ) has a filter housing with a surface filter inserted in it. This has, for example, a filter area of half a square meter and is designed, for example, as a pleated element. It can be made of cellulose polyester, polypropylene, fiberglass or some other filter material. The filter fineness of this ultrafine filter is between 0.01 micrometers and 0.05 micrometers. In the exemplary embodiment, the filter fineness is 0.02 micrometers. To the filter outlet ( 84 ) the fine filter device ( 83 ) is the permeate outlet unit ( 39 ) connected.

Another design of the liquid treatment device ( 30th ) is conceivable. For example, instead of the membrane filter device described ( 68 ) a chemical treatment device for the supplied liquid in the device housing ( 11 ) be arranged. During this treatment, the composition of the liquid is changed by adding chemicals or filtering through chemically active substances. For example, this can be done with the method of flocculation, precipitation, oxidation or ion exchange.

In the device housing ( 11 ) Alternatively, an electrochemical processing device can also be arranged. By means of the electrical connection ( 23 ), for example, an electrical direct voltage is applied to an electrolysis cell. In this way, for example, supplied seawater can be broken down into fresh water, concentrate and saline solutions. The individual liquids are dispensed using different, for example coded, outlet units ( 36 ) from the device housing ( 11 ) diverted.

In the device housing ( 11 ) a membrane filtration device ( 68 ), a chemical treatment device and an electrochemical processing device can be arranged. All of these aftertreatment devices are, for example, parallel to each other in the adsorption filter device ( 64 ) downstream and direct the treated water via their own outlet connections ( 36 ) from the device housing ( 11 ). Each outlet port ( 35 ) can be activated by inserting a plug ( 101 ; 102 ) to be activated. The corresponding aftertreatment device is activated, for example, through the formation of a pressure drop on the output side. The parcel shipping unit ( 10 ) with the device housing ( 11 ) can also be differently structured devices ( 30th ) for liquid treatment.

When assembling the liquid treatment device ( 30th ) the individual components are placed in the device housing ( 11 ) built-in. The liquid inlet unit ( 35 ) and the outlet units ( 36 ) point outwards and are closed with protective caps if necessary. If necessary, the device housing ( 11 ) are also lined. Then the device housing ( 11 ) locked. If necessary, it can be sealed ( 15th ) are backed up. For example, after sticking an address sticker ( 16 ) on the device housing ( 11 ) this serves as a shipping case ( 11 ). The parcel shipping unit ( 10 ) can now be delivered to the customer using a parcel service.

The operator sets the parcel shipping unit ( 10 ) for example on the floor. Without the shipping case ( 11 ), he closes an initially shut off pressurized water line by means of a supply connection piece ( 101 ) to the inlet coupling element ( 41 ). If necessary, coupling under pressure is also possible. In addition, the operator closes an outlet connector ( 102 ) e.g. to the outlet coupling element ( 52 ) the filter outlet unit ( 37 ) on. The coding of the connections ( 41 , 101 ; 52 ; 102 ) prevents incorrect operation. When coupling the quick couplings ( 41 , 101 ; 52 , 102 ) the integrated shut-off valves ( 46 ; 57 ) open. The to the implementation units ( 31 ) connected hose lines ( 103 ) are now with the water treatment device ( 30th ) hydraulically connected. The electrical connection ( 23 ) is not connected to a power source, for example.

After the pressurized water line has been unlocked, contaminated water, for example, flows from the pressurized water line through the - idle - booster pump ( 61 ) through into the mechanical pre-filter device ( 63 ). Here, for example, sediments are filtered out. The pre-cleaned water is fed into the adsorption filter device ( 64 ), where organic and inorganic substances are separated from the pre-cleaned water.

The adsorption device ( 64 ) filtered water now enters the T-piece ( 66 ). The opened filter outlet unit ( 37 ) forms a pressure sink so that the filtered water flows through the filter outlet unit ( 37 ) flows out.

If the customer needs water of higher quality, he connects a plug-type outlet connection piece to the permeate outlet unit ( 39 ) and to the concentrate outlet unit ( 38 ). For example, the outlet connector from the filter outlet unit ( 37 ) pulled out. The shut-off valve ( 57 ) the filter outlet unit ( 37 ) by means of the integrated compression spring ( 85 ) blocked.

The water now flows out of the adsorption filter device ( 64 ) into the membrane filter device ( 68 ). Here the water pressure can be greater than the required osmotic pressure. If necessary, to increase the water pressure, the booster pump ( 61 ) by connecting the electrical connection ( 23 ) to a power source. The booster pump ( 61 ) can also be connected directly to the membrane filter device ( 68 ) upstream.

In the membrane filter device ( 68 ) a reverse osmosis takes place, whereby the flow limiting valve ( 81 ) in the first passage ( 78 ) maintains the pressure for reverse osmosis. The contaminated concentrate leaves the device through the concentrate outlet unit ( 38 ). The purified water flows through the second passage ( 79 ) into the pressure vessel ( 82 ). After exiting the pressure vessel ( 82 ) it flows through the fine filter device ( 83 ) and reaches the permeate outlet unit ( 39 ). Here it can be used, for example, as drinking water or as hygienically pure water.

If at the permeate outlet unit ( 39 ) no water is withdrawn, the pressure in the second flow path increases ( 79 ) on. The concentrate flow is interrupted, which stops the reverse osmosis.

Are all three connections of the outlet units ( 36 ), both filtered and purified water can be used. For example, this can be done by means of a secondary shut-off valve or throttle valve in the parcel shipping unit ( 10 ) leading away line can be controlled. A liquid quality is assigned to each line.

For example, after a specified time interval, e.g. after six months, the filters of the filter devices ( 63 , 64 , 68 , 83 ) to clean or replace. The customer removes the feed connector ( 101 ) from the inlet coupling element ( 41 ) and all outlet fittings ( 102 ) from the outlet coupling elements ( 52 , 59 ). The coupling elements ( 41 , 52 , 59 ) close automatically so that no residual water drips out. The customer addresses e.g. using an address sticker ( 16 ) the parcel shipping unit ( 10 ). He can use a parcel service to send this parcel shipping unit ( 10 ) e.g. send it back to the manufacturer and in return, for example, receives a new or cleaned parcel shipping unit ( 10 ) with a liquid treatment device ( 30th ).

Since all coupling elements ( 41 , 52 , 59 ) within the envelope contour of the stable shipping housing ( 11 ) there is no risk of damaging the device's components during shipping. The seal ( 15th ) secures the parcel shipping unit ( 10 ) additionally against unauthorized opening.

Combinations of the individual exemplary embodiments are also conceivable.

List of reference symbols

1

Surroundings

10

Parcel shipping unit

11

Shipping housing, device housing, case

12

Case shell

13

Case lid

14th

Handle

15th

seal

16

Address label

17th

Interior of the shipping case ( 11 )

18th

Sealing element

19th

Pressure equalization device

21st

Housing wall

22nd

Front wall

23

electrical connection

24

cam

30th

Liquid treatment device, water treatment device

31

Implementation unit

32

External thread

33

Hexagon nut

34

Hexagon nut

35

Liquid inlet unit

36

Outlet unit, outlet connection

37

Filter outlet unit

38

Concentrate outlet unit

39

Permeate outlet unit

41

Inlet coupling element, quick coupling element

42

check valve

43

Receiving recess

44

Coding recess

45

Centering nose

46

Closing valve

47

Valve disc

48

Compression spring

49

Closure direction

51

Locking element

52

Filter coupling element, outlet coupling element

53

Receiving recess

54

Check valve of the filter outlet unit ( 37 )

55

Check valve of the concentrate outlet unit ( 38 )

56

Check valve of the permeate outlet unit ( 39 )

57

Closing valve

58

Receiving recess

59

Coupling element, outlet coupling element

61

Booster pump

62

Leakage sensor

63

Pre-filter device

64

Adsorption filter device

65

Filter output

66

Tee

67

third connection of the T-piece ( 66 )

68

Membrane filter device, reverse osmosis device, membrane filtration device

69

Membrane unit

71

membrane

72

first liquid space

73

second liquid space

74

first output port

75

second output port

76

Permeate check valve

77

Shut-off valve

78

first flow path

79

second flow path

81

Flow limiter, flow limiting valve

82

pressure vessel

83

Fine filter device

84

Filter output

85

Compression spring

91

Direction of flow

92

management

101

Feed connector, plug

102

Outlet fitting, plug

103

Hose line

Claims (6)

Parcel shipping unit (10) with a shipping housing (11) forming a device housing (11) of a liquid treatment device (30), - wherein the shipping housing (11) has a housing wall (21) with an end wall (22) and a handle (14) arranged on the end wall (22), - wherein the liquid treatment device (30) has a liquid inlet unit (35) penetrating the end wall (22) of the shipping housing (11) and at least one outlet unit (36) penetrating the end wall (22), - wherein the liquid inlet unit (35) has an inlet coupling element (41) which is fastened to the end wall (22) and has an integrated, spring-loaded locked shut-off valve (46) that can be unlocked by means of a feed connector (101), - wherein the at least one outlet unit (36) has an outlet coupling element (52; 59) fastened to the end wall (22) with an integrated, spring-loaded locked shut-off valve (57) that can be unlocked by means of an outlet connector (102) - wherein the liquid inlet unit (35) and the at least one outlet unit (36) are arranged within the envelope contour of the shipping housing (11) and - wherein the liquid treatment device (30) comprises an adsorption filter device (64) and a membrane filtration device (68), chemical treatment device and / or electrochemical treatment device connected downstream of the adsorption filter device (64). Parcel shipping unit (10) according to Claim 1 , characterized in that the inlet coupling element (41) and the outlet coupling element (52; 59) have differently designed receiving recesses (46; 53; 58), so that the supply connector (101) only with the inlet coupling element (41) and the outlet connector (102) only can be coupled to the outlet coupling element (52; 59). Parcel shipping unit (10) according to Claim 1 , characterized in that the membrane filtration device (68), the chemical treatment device and / or the electrochemical processing device is followed by an ultra-fine filter device (83). Parcel shipping unit (10) according to Claim 3 , characterized in that im Dispatch housing (11), a permeate outlet unit (39) downstream of the fine filter device (83) and a concentrate outlet unit (38) downstream of the membrane filtration device (68), the chemical treatment device and / or the electrochemical processing device. Parcel shipping unit (10) according to Claim 1 , characterized in that the membrane filtration device (68), the chemical treatment device and / or the electrochemical processing device can be switched off by means of a shut-off valve (77). Parcel shipping unit (10) Claim 1 , characterized in that the adsorption filter device (64) is preceded by a pressure increasing pump (61).

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