DE102006025508A1 - Cleaning system e.g. for cleaning baking or combined steaming device, has lockable baking area, fan with drive, heater in baking area and flow outlet connected to container and control equipment - Google Patents

Abstract

The cleaning system has a lockable baking area (1), a fan (3) with drive (4), a heater (8) in the baking area, a flow outlet connected to a container (6), and control equipment (50). Liquid and or cleaning agents (26, 27) prepared in liquid form fills containers (20, 21) positioned in the baking area. The containers have pipes and regulators (16, 17) attached to compressed air unit and or a pressure water inlet (15) and which are controlled with the containers connected over an output pipe in the baking area.

Description

The The invention relates to a cleaning system for cleaning a baking or combi steamer device that a lockable Baking / cooking space, a fan with drive, a heater in the cooking chamber, opening into a container Outflow and having a control device.

In EP 1 478 886 A1 a cleaning system is described in which highly concentrated pressed tablets are used, which are dissolved "freely suspended" in the cooking chamber of water circulated with the cooking air. The acting mixture of water and cleaner initially has a low concentration of cleaner; however, this concentration increases with the dissolution of the tablets. This increasing cleaner concentration requires a longer exposure and a higher temperature. Furthermore, transport, storage and operator handling of highly concentrated tablets are dangerous and cumbersome.

At the in EP 1 209 419 A2 cleaning system described cleaning cartridges are used, which hang in the oven and are deliberately dissolved by the water. The concentration of the cleaner increases in line with the progressing dissolution process. A dosage corresponding to the degree of contamination is predetermined by the smallest cartridge. This requires a larger storage and higher cleaning costs.

at Cleaning systems using liquid detergents work, are used for wetting the cooking spray nozzles, which by means of Pumps detergent supplied become. This makes the pump and lines of a higher chemical load exposed, whereby their life is shortened ver.

task The invention is a cleaning system according to the preamble of the claim 1, in which a the respective degree of pollution correspondingly optimized cleaning is carried out.

According to the invention this task is in a cleaning system according to the preamble the claims 1 and 3 solved by the features in its characterizing part. advantageous Further developments are the subject of the claims 1 and 3 directly or indirectly referenced Claims.

According to the invention are in the baking / cooking chamber of the baking or combi steamer device with liquid or too liquid form prepared detergent dispensers filled or filled dispenser container positioned. This dispenser container are each about a pipeline and over control units controlled by a control device to a Compressed air, water and / or Pressurized water supply line connected. Here, the dispenser containers are each at least over an outlet pipe with the baking / cooking space or via a pipe with a drain tank in Connection. Here, the drain tank via a pipe as well a circulation pump connected to at least one housed in the baking / cooking space spray head.

By the used liquid or too fluid Formed detergent, including rinse aid becomes a highly concentrated at the beginning of a cleaning process Cleaning mixture used, its free setting in the baking / cooking space is achieved by a hydro-pneumatic effect. This takes place the transport of the cleaning agents in the baking / cooking chamber through large cross sections and / or under high air or water pressure. The desired or required sequence and dosage of cleaning agents including rinse aid by being installed in the air and / or water supply and by a control device controllable regulating preferably met in the form of solenoid valves. A too fluid Molded detergent, outside the baking / cooking space in the appropriate dispenser container filled can, can by dissolving obtained from cleaning powder, cleaning tablets and / or cleaning paste become.

By Insertion of liquid Detergents is another much easier filling of the corresponding dispensing container allows. There Compressed air, water and / or pressurized water not to Dissolve of cleaning agents, but for transporting the cleaning agent from the respective dispenser container is used, the cleaning concentration is already at the beginning of a cleaning process.

By the use of compressed air, water and / or pressurized Water while A cleaning cycle is a residue-free release of cleaning and rinse aid and thus a complete one Cleaning the baking / cooking chamber to achieve. By providing refillable Dispensers from which controlled the cleaning liquid or the rinse aid is released, optimal dosage, is a cost-effective Cleaning and a compact space-saving Gerä teaufbau allows.

According to a preferred embodiment The invention uses open and / or closed containers as cleaning or rinse aid dispenser containers which are connected on the input side to compressed air, water and / or pressurized water and on the output side directly to the baking / cooking chamber and / or to the discharge container stand.

According to one Another preferred embodiment of the invention, the output tube the dispenser container as suction or as overflow pipe be educated. Furthermore, the output tube in the manner of a Venturi nozzle be formed by which over a tube, for example, from the corresponding dispensing container cleaning agent is sucked.

Further can according to the invention in the donor containers an overpressure be generated, by its action cleaning fluid or rinse aid be pushed out of the corresponding dispenser container. The appropriate output tube from the dispenser can either a big one Have cross-section or be provided with a nozzle.

According to one Another advantageous embodiment of the invention, the fluid flow rate a conveyor drive with a radial or axial blading, which For example, the detergent from the corresponding dispenser container in the baking / cooking space is transported.

following The invention will be explained with reference to the adjacent drawing calculations. It demonstrate:

1a and 1b in a simplified schematic representation in section a front view and a side view of a baking / cooking chamber with cleaning system;

2a and 2 B of the 1a and 1b similar views, but in which donor container via a line in direct communication with a drain tank are;

3 a schematic representation of a dispensing container whose output tube is connected to a Venturi tube;

4 a schematic representation of a dispensing container design as a pressure vessel;

5a a schematic representation of a dispensing container whose output is designed as a suction lever;

5b the mode of action of the suction lever provided in the dispensing container when supplying water, and

6 a schematic representation of a conveyor wheel for conveying detergent.

In 1a and 1b is a sectional front view and a side view of a closable with a door baking / cooking space 1 shown in which a schematically illustrated electric or gas heating 8th is provided. The baking / cooking space 1 has a drain at the bottom 5 up in a drain tank 6 with one, in 1a dashed indicated water mask ends. With the drain tank 6 or with its expiration 7 is a pump 11 connected. Further, in the sectional views in FIG 1a and 1b in the upper area of the baking / cooking space 1 schematically a spray head 12 indicated. In the baking / cooking space 1 are one of a motor 4 driven fan wheel 3 with cover 2 as well as a gutter 32 for distributing detergent 26 . 27 via an air intake opening in the cover 2 intended.

In the baking / cooking space 1 are a donor container 20 for liquid or liquid form treated detergent 26 and another dispenser container 21 for rinse aid 27 intended. To hold the dispenser container 20 and 21 in the baking / cooking space 1 are not shown in detail holding means provided. The dispenser container 20 and 21 are via lines and regulating devices in the form of solenoid valves 16 respectively. 17 with a compressed air or water supply line 15 connected. Due to the hydro-pneumatic effect of the pressurized fluids are due to the dispenser containers 20 and 21 provided outlet pipes detergent 26 or rinse aid 27 from the donor containers 20 and 21 in the baking / cooking space 1 promoted.

With the help of the fan 3 caused climatic transformation are in the baking / cooking space 1 soiled surfaces evenly with the detergent 26 wetted. After a pre-set exposure time, the drain tank becomes 6 filled with water. One with the drain tank 6 connected circulation pump 10 promotes a cleaner-water mixture 30 to the spray head 12 , From there, the cleaner-water mixture 30 in the baking / cooking space 1 sprayed and over the drainpipe 5 back into the drain tank 6 directed. After completion of the cleaning becomes the cleaner-water mixture 30 by means of the pump 11 pumped out.

From the second dispenser container 21 becomes rinse aid 27 in the baking / cooking space 1 issued. After a pre-set exposure time, water is added to the drain tank 6 admitted. Through the circulation pump 10 becomes a rinse aid water mixture 31 to the spray head 12 promoted. After a pre-set time, the rinse aid water mixture 31 through the pump 11 pumped out. Subsequently, the baking / cooking space is dried by circulation of dry and warm air.

This cleaning process is by means of a control device 50 so controlled that on the regulating devices in the form of solenoid valves 16 . 17 the order of release of the detergent in the form of cleaning fluid 26 and rinse aid 27 is determined.

The difference between the schematic representations in 1a / 1b and 2a / 2 B is that in 2a / 2 B the outlet pipes of the dispenser 20 and 21 via a common line 18 in direct connection with the drainage tank 6 stand.

In 3 is a donor container 20 or 21 in which there are cleaning agents 26 or rinse aid 27 via an exit tube to a Venturi tube 42 connected. If a fluid in the form of water 40 or air 41 through the venturi tube 42 flows out of the dispenser container 20 or 21 cleaning supplies 26 or rinse aid 27 sucked and in the baking / cooking space 1 promoted.

In 4 is a schematic representation of an embodiment of the dispenser container 20 respectively. 21 reproduced as a pressure vessel, in which overpressure through the to the inlet pipe 22 connected fluid water and / or air is built up. This overpressure will either clean the product 26 or the rinse aid 27 through a nozzle 28 from the dispenser container 20 respectively. 21 pushed outward. When compressed air is used as the fluid, the cleaning agent changes 26 its concentration is not, so that the cleaning effect from the beginning is high.

In 5a and 5b are schematically dispenser containers 20 or 21 with an inlet pipe 22 for water supply and a so-called suction lever 24 shown at the exit. In 5a is the container 20 respectively. 21 not higher with cleaning fluid 26 or rinse aid 27 filled as to the overflow edge of the suction lever 24 , If, as in 5b shown schematically, water 25 is fed, the filling level increases. When exceeding the overflow edge and thus when filling the suction lever 24 the cleaner-water mixture flows 30 or rinse aid-water mixture 31 from the respective dispenser container 20 or 21 outward.

In 6 is again schematically a conveyor wheel for conveying detergent 26 or rinse aid 27 from the respective dispenser container 20 respectively. 21 shown. The conveyor wheel 44 is set in rotation by the action of the water or air volume flow. Here, the blading of the feed wheel 24 , as in 6 represented, be executed radially or axially.

1

Baking / cooking space

2

Fan cover

3

fan

4

engine

5

outflow

6

container

7

outflow

8th

heater

10

circulating pump

11

pump

12

spray nozzle

15

Compressed Air and / or pressurized water supply line

16 17

regulator units

18

management

20 21

dispensing container

22

mouthpipe

24

suction lever

25

water

26

cleaning supplies

27

rinse aid

28

jet

30

Cleaner-water mixture

31

Rinse-water mixture

32

gutter

40

water

91

air line

42

Venturi

44

promoter

50

control device

Claims (14)

Cleaning system for cleaning a baking or combi steamer device, which has a closable cooking chamber ( 1 ), a fan wheel ( 3 ) with drive ( 4 ), a heater ( 8th ) in the baking / cooking space ( 1 ), into a container ( 6 ) outflow ( 7 ) of the baking / cooking space and a control device ( 50 ), characterized in that with liquid and / or to liquid form treated cleaning agents ( 26 ; 27 ) filled or fillable dispenser containers ( 20 ; 21 ) in the baking / cooking space ( 1 ), the dispenser containers ( 20 ; 21 ) via a pipeline and via the control device ( 50 ) controlled regulatory units ( 16 ; 17 ) to a compressed air and / or pressurized water supply line ( 15 ) and the dispenser containers ( 20 . 21 ) in each case via at least one output tube with the baking / cooking space ( 1 ) keep in touch. Cleaning system according to claim 1, characterized in that the drainage tank ( 6 ) above a pipeline ( 19 ) and a circulation pump ( 10 ) with at least one in the baking / cooking space ( 1 ) accommodated spray head ( 12 ) connected is. Cleaning system for cleaning a baking or combi steamer device, which has a closable cooking chamber ( 1 ), a fan wheel ( 3 ) with drive ( 4 ), a heater ( 8th ) in the baking / cooking space ( 1 ), into a container ( 6 ) outflow ( 7 ) of the baking / cooking space and a control device ( 50 ), characterized in that with liquid and / or to liquid form treated cleaning agents ( 26 ; 27 ) filled or fillable dispenser containers ( 20 ; 21 ) in the baking / cooking space ( 1 ), the dispenser containers ( 20 ; 21 ) via a pipeline and via the control device ( 50 ) controlled regulatory units ( 16 ; 17 ) to a compressed air and / or pressurized water supply line ( 15 ) and the dispenser containers ( 20 . 21 ) via an outlet pipeline ( 18 ) with the drain tank ( 6 ) communicating via a pipeline ( 18 ) and a circulation pump ( 10 ) with at least one in the baking / cooking space ( 1 ) accommodated spray head ( 12 ) connected is. Cleaning system according to claim 1, characterized the outlet tube is designed as a suction lever. Cleaning system according to claim 1, characterized that the outlet pipe as an overflow pipe is trained. Cleaning system according to claim 1, characterized that the output tube is formed in the manner of a Venturi nozzle. Cleaning system according to claim 1, characterized by a driven conveyor ( 44 ) with radial or axial blading for dispensing liquid or liquid form treated cleaning agents ( 26 ; 27 ) in the baking / cooking space ( 1 ). Cleaning system according to claim 1 or 3, characterized in that for receiving the dispenser container ( 20 . 21 ) ent speaking retaining means in the baking / cooking space ( 1 ) are provided. Cleaning system according to one of the preceding claims, characterized in that the in the dispensing container ( 20 . 21 ) introduced cleaning agent ( 26 ; 27 ) are liquid or in the dispenser container ( 20 . 21 ) in powdered, pasty, compressed or layered form ( 26 ; 27 ) in the dispenser containers ( 20 ; 21 ) can be processed to liquid form. Cleaning system according to one of the preceding claims, characterized in that the cleaning agents ( 26 ; 27 ) by generating negative pressure in flowing water or in flowing air in the outlet tube ( 42 ) are sucked off. Cleaning system according to one of the preceding claims, characterized in that cleaning agent ( 26 ; 27 ) by generating overpressure from in the respective dispenser containers ( 20 ; 21 ) is pushed out of flowing water or flowing air. Cleaning system according to claim 1 or 3, characterized in that the regulation units ( 16 . 17 ) by means of the control device ( 50 ) are controlled solenoid valves. Cleaning system according to one of the preceding claims, characterized in that the outflow ( 5 ) of the baking / cooking space ( 1 ) in a water reservoir in the drainage tank ( 6 ) ends. Cleaning system according to one of the preceding claims, characterized by a gutter ( 32 ) for distributing the cleaning agents ( 26 ; 27 ) via an air intake opening in the fan wheel cover ( 2 ).