EP2476481A1 - Dispositif et procédé de production de mousse - Google Patents
Dispositif et procédé de production de mousse Download PDFInfo
- Publication number
- EP2476481A1 EP2476481A1 EP11150846A EP11150846A EP2476481A1 EP 2476481 A1 EP2476481 A1 EP 2476481A1 EP 11150846 A EP11150846 A EP 11150846A EP 11150846 A EP11150846 A EP 11150846A EP 2476481 A1 EP2476481 A1 EP 2476481A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- foam
- liquid
- gas
- supply line
- disinfectant
- 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.)
- Granted
Links
- 239000006260 foam Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 239000000645 desinfectant Substances 0.000 claims description 29
- 239000012459 cleaning agent Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 7
- 239000003599 detergent Substances 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 38
- 238000004140 cleaning Methods 0.000 description 11
- 239000007921 spray Substances 0.000 description 9
- 239000004809 Teflon Substances 0.000 description 4
- 229920006362 Teflon® Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012377 drug delivery Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012502 risk assessment Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
- B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
- B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
Definitions
- the present invention relates to a device for generating foam, in particular for producing a foam, which contains a cleaning agent and / or a disinfectant. Furthermore, it relates to a method for generating foam and the use of the device according to the invention for producing a foam, which contains a cleaning agent and / or a disinfectant.
- the application of cleaning agents and disinfectants is often in the form of a foam.
- the foaming is used for better spray control to ensure the necessary exposure time on vertical surfaces, as well as to prevent spray and thus to ensure occupational safety.
- the formation of fine spray drops affects users of detergents and disinfectants themselves. Such small drops are formed at high pressure on a spray nozzle but also by reflection of a spray solution on the treated surface or objects standing in space.
- the large specific surface of a sprayed detergent or disinfectant solution can endanger the user by strong evaporation of cleaning agents or disinfectants.
- a foam strikes a target area in a stress-relieved manner, is thus not reflected, and the intrinsically homogeneous nature with a specific surface that is smaller toward the outside also reduces the evaporation of cleaning agents or disinfectants. As a result, the workload is reduced.
- Conventional foam generation devices include continuous and discontinuous foam generators. Discontinuous foam generators allow only short sprays of a foam. They are unsuitable for the treatment of large areas.
- a continuous operation of a foaming device by direct connection to a water pipe and a compressed air source is in the DE 20 207 014 124 U1 described.
- This device uses a proportional feeder which allows only low water pressures of not more than 200,000 Pa, resulting in low volume flows of the foam produced.
- water and compressed air are mixed without a fine distribution of the liquid would take place. It therefore does not come to the formation of air bridges.
- Foam without air bridges hits and occupies a surface in a manner similar to a liquid jet, so that only a small layer thickness can be applied. Such foam drains off vertical surfaces quickly, so that its exposure time, similar to that of an aqueous solution, is minimal.
- Expiring foam transports a cleaning agent or disinfectant with, so that it collects on the ground and is transported, for example, in the application in livestock through slatted floors in the manure or discharged at the lowest point of the floor via a drain into the sewage.
- unintentional inputs into the environment are to be assessed by means of risk assessment in authorization procedures specifically regulated by the Biocidal Products Act and minimized by suitable application techniques and application procedures.
- the DE G 90 07 434.3 describes a foam generation system for cleaning equipment. First, a liquid and compressed air without fine distribution of the liquid mixed together before foaming the resulting mixture through a sieve. Again, there is no formation of air bridges.
- Foam which has air bridges, has a "creamy" texture. This makes it possible, compared to foam without air bridges (according to the prior art), to attach larger layer thicknesses of a larger foam volume to be applied to a target surface and to place them there for a longer period of time. As a result, the exposure time at the site of action is increased, and the required amount of active ingredient per unit area is ensured over the required exposure time. In addition, the foam remains on the treated surface and dried there. This avoids inadvertent entry into the environment.
- a device for generating foam in particular for producing a foam which contains a cleaning agent and / or a disinfectant a foam production chamber, a liquid feed, which ends in the foam-generating chamber, and whose end is designed as a sieve basket, a gas supply line connected to the foam generation chamber and a foam discharge line connected to the foam generation chamber.
- the liquid supply line and the gas supply line are separated, so that only liquid can be transported through the liquid line and only gas can be transported through the gas supply line.
- the liquid exits through the screen as a fine spray jet and is then cyclone-like or vortex foamed by the gas flow from the gas supply line. This is preferably accomplished by use of a cylindrical foam generating chamber so that the gas stream can form a gas vortex along the wall of the foam generating chamber.
- the foam produced according to the invention has air bridges.
- an aqueous solution of a cleaning agent and / or a disinfectant is preferably introduced under a pressure in the range of 150,000 to 600,000 Pa in a mixing chamber. This corresponds to the pressure of tap water in the low pressure range.
- This aqueous solution preferably contains a foaming agent to enhance foaming. However, if the cleaning agent or the disinfectant itself has foam-forming properties, but can also be dispensed with an additional foaming agent.
- the aqueous solution is preferably produced by continuously metering in a water stream the cleaning agent and / or the disinfectant and optionally the foaming agent. This dosing can be done, for example, the metering hygitrix ® from Menno Chemiemaschinesgesellschaft mbH.
- the metered addition is regulated taking into account a measurement of the detergent / disinfectant concentration in the produced use solution taking place at intervals in order to avoid underdosing or overdosing.
- the gas supply compressed air is preferably introduced under a pressure in the range of 150,000 to 600,000 Pa in a mixing chamber.
- the compressed air volume is 4,000 to 160,000 1 / h, in particular it is in the range of 60 to 2700 1 / min, more preferably in the range of 100 to 300 1 / min and most preferably in the range of 150 to 200 1 / min.
- the stream of liquid introduced is preferably from 5% to 150% of the stream of introduced gas, more preferably it is in the range from 7 to 50% and most preferably from 10% to 20%. It is further preferred that the material flow of liquid introduced is a maximum of 600 1 / h. In particular, it is in the range of 5 to 40 1 / min, more preferably in the range of 10 to 30 1 / min and most preferably in the range of 15 to 25 1 / min.
- the material flow of the liquid which is introduced through the liquid feed line (12) into the device (1), in the range of 15 to 25 1 / min.
- the stream of gas which is introduced into the device (1) through the gas feed line (14), is preferably in the range from 150 to 2001 / min.
- the screen basket of the device according to the invention has a screen-free opening and in the screen basket at least one freely movable packing is arranged, whose diameter is greater than the diameter of the screen-free opening.
- the freely movable filler body is substantially spherical. Most preferably it consists of Teflon or is coated with Teflon.
- the filler is pressed by the liquid flow on the screen-free opening and thus closes it. If there is a blockage of the screen basket, the filler falls back into the basket and can solve the blockage in this way, so that a self-cleaning of the screen basket is possible.
- a shut-off valve is arranged, which is adapted to shut off the liquid supply, if there is a blockage of the screen basket.
- the liquid supply line is arranged at an angle of 0 to 90 ° to the gas supply line.
- the gas flow strikes the liquid spray substantially at a right angle, leaving the screen.
- the liquid supply line and the gas supply line are arranged in parallel, wherein the gas supply line encloses the liquid supply line.
- the gas stream thus leaves the gas supply line from an annular gap over the entire surface of the screen basket.
- a baffle plate is arranged at the end of the screen basket, which faces away from the liquid feed line. As a result, a strong turbulence of the gas stream is achieved.
- the liquid supply line is arranged at an angle of 90 to 180 ° to the gas supply line. In this case, the gas flow is substantially perpendicular to the liquid spray exiting the sieve.
- a check valve is preferably arranged in the liquid supply line.
- a check valve is preferably also arranged.
- the foam discharge preferably has a conical shape, which allows a particularly favorable dissipation of the foam produced by the foam dissipation.
- a hose with a lance can be connected to the foam discharge in order to apply the generated foam.
- a small-pored, feinperliger, pasty, creamy cleaning / disinfecting foam is generated, which has small air bubbles, thereby having a higher water content, wherein larger proportions of efficient cleaning or effective disinfectant constituents are mounted on the target surface. Also, a larger contact surface to the target surface and thus accelerated drug delivery is achieved because less air and more liquid per unit volume or thicker liquid layers are formed with small air bubbles. This enables accelerated impact processes.
- the device according to the invention is dimensioned so that it is portable.
- FIG. 1 schematically shows a first embodiment of the present invention.
- An apparatus (1) for producing a foam containing a detergent and / or a disinfectant comprises a foaming chamber (11) of polyvinyl chloride (PVC), a liquid feed line (12) terminating in the foam producing chamber (11) and the end thereof is designed as a screen basket (13), a gas supply line (14) which is connected to the foam-generating chamber (11), and a conical foam discharge (15) which is connected to the foam-generating chamber (11).
- the liquid supply line (12) is arranged in parallel, ie at an angle of 0 °, to the gas supply line (14).
- a shut-off valve (121) is arranged, which is adapted to shut off the liquid supply line (12) when there is a blockage of the screen basket (13).
- a check valve (122) is arranged in the liquid supply line (12).
- a check valve (141) is arranged in the gas supply line (14) in the gas supply line (14) in the gas supply line (14) in the gas supply line (14) in the gas supply line (14) also a check valve (141) is arranged.
- the device (1) is dimensioned so that it is portable.
- FIG. 2 schematically shows a second embodiment of the present invention.
- This differs from the first embodiment in that the gas supply line (14) encloses the liquid feed line (12).
- the gas stream thus leaves the gas supply line from an annular gap over the entire surface of the screen basket (13).
- a circular metal sheet is arranged as a baffle plate (131).
- FIG. 3 schematically shows a third embodiment of the present invention. This differs from the first embodiment in that the outlet of the liquid feed line (12) is arranged at an angle of 45 ° to the gas feed line (14).
- FIG. 4 schematically shows a fourth embodiment of the present invention.
- the liquid supply line (12) is arranged transversely, ie at an angle of 90 °, to the gas supply line (14).
- the screen basket (13) has a screen-free opening (132).
- FIG. 5 shows how a device according to the invention for foam generation can be connected to supply and discharge systems.
- An aqueous solution of a disinfectant is introduced from a liquid source (2) through the liquid supply line (12) into the device (1).
- the liquid source (2) is a dosing system hygitrix ® of Menno Chemiemaschinesgesellschaft mbH. This is connected to a water line (21), which provides tap water in the low pressure range of 300,000 to 600,000 Pa.
- Disinfectants and foaming agent are metered from a reservoir (22) in the form of the disinfectant concentrate VENNO ® VET 1 (Menno Chemie demosgesellschaft mbH) containing formic acid as a disinfectant, and a surfactant as a foaming agent.
- Compressed air with a maximum pressure of 600,000 Pa is introduced from a compressed air source (3) through the gas supply line (14) in the device (1).
- the disinfectant foam produced in the device (1) is passed through the foam discharge line (15) into an application device (4).
- the application device (4) consists of a hose (41) which ends in a lance (42). Through this lance (42) of the disinfectant foam can be applied to the surface to be disinfected.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nozzles (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11150846.1A EP2476481B1 (fr) | 2011-01-13 | 2011-01-13 | Dispositif et procédé de production de mousse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11150846.1A EP2476481B1 (fr) | 2011-01-13 | 2011-01-13 | Dispositif et procédé de production de mousse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2476481A1 true EP2476481A1 (fr) | 2012-07-18 |
EP2476481B1 EP2476481B1 (fr) | 2013-08-21 |
Family
ID=43983704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11150846.1A Active EP2476481B1 (fr) | 2011-01-13 | 2011-01-13 | Dispositif et procédé de production de mousse |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2476481B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3501281A1 (fr) | 2017-12-22 | 2019-06-26 | Theseo | Composition désinfectante |
EP3800239A1 (fr) | 2019-10-01 | 2021-04-07 | Menno Chemie-Vertrieb GmbH | Compositions de détergent acides liquides pour surfaces dures |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2833407T3 (es) | 2016-04-29 | 2021-06-15 | Menno Chemie Vertrieb Gmbh | Dispositivo de rociado para un robot de rociado y robot de rociado |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3618713A (en) * | 1969-12-12 | 1971-11-09 | Robert L Batchelor | Foam lubricating system and method |
DE9007434U1 (de) | 1990-03-21 | 1991-09-19 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Schaumerzeugungssystem für Reinigungsanlagen |
DE19933200A1 (de) | 1999-07-15 | 2001-02-01 | Schneider Druckluft Gmbh | Druckluftbetriebenes Reinigungsgerät |
DE10233471A1 (de) * | 2002-07-24 | 2004-02-12 | Kundo Systemtechnik Gmbh | Verfahren und Vorrichtung zum Herstellen von mit Kohlendioxid versetztem Tafelwasser |
DE202007014124U1 (de) | 2007-06-29 | 2008-08-14 | Lorenzen, Andreas | Vorrichtung zur Schaumerzeugung |
-
2011
- 2011-01-13 EP EP11150846.1A patent/EP2476481B1/fr active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3618713A (en) * | 1969-12-12 | 1971-11-09 | Robert L Batchelor | Foam lubricating system and method |
DE9007434U1 (de) | 1990-03-21 | 1991-09-19 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Schaumerzeugungssystem für Reinigungsanlagen |
DE19933200A1 (de) | 1999-07-15 | 2001-02-01 | Schneider Druckluft Gmbh | Druckluftbetriebenes Reinigungsgerät |
DE10233471A1 (de) * | 2002-07-24 | 2004-02-12 | Kundo Systemtechnik Gmbh | Verfahren und Vorrichtung zum Herstellen von mit Kohlendioxid versetztem Tafelwasser |
DE202007014124U1 (de) | 2007-06-29 | 2008-08-14 | Lorenzen, Andreas | Vorrichtung zur Schaumerzeugung |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3501281A1 (fr) | 2017-12-22 | 2019-06-26 | Theseo | Composition désinfectante |
EP3800239A1 (fr) | 2019-10-01 | 2021-04-07 | Menno Chemie-Vertrieb GmbH | Compositions de détergent acides liquides pour surfaces dures |
WO2021063619A1 (fr) | 2019-10-01 | 2021-04-08 | Menno Chemie-Vertrieb Gmbh | Composition liquide d'agent nettoyant acide pour surfaces dures |
Also Published As
Publication number | Publication date |
---|---|
EP2476481B1 (fr) | 2013-08-21 |
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