Cleaning device, compressed air system, cleaning method
A cleaning device for selectively bombarding a surface with a media sequence of at least a first medium and a second medium. The cleaning device includes a nozzle configured to bombard the surface with the second medium and a cleaning valve having a holding port, a pressure port, a plunger, and a pressure outlet. The cleaning device further includes a high-pressure accumulator configured to store the first medium, which is loaded with an accumulator pressure, and a changeover valve configured to selectively create a connection between a first medium supply line and a holding line connected to the holding port. The pressure outlet is configured to bombard the surface with the first medium in pulse-like fashion.
1. A cleaning device for selectively bombarding a surface with a media sequence of at least a first medium and a second medium, the cleaning device comprising:
a nozzle configured to bombard the surface with the second medium;
a cleaning valve having a holding port, a pressure port, a plunger, and a pressure outlet;
an accumulator configured to store the first medium which is loaded with an accumulator pressure; and
a changeover valve configured to selectively create a connection between a first medium supply line and a holding line connected to the holding port,
wherein the pressure outlet is configured to bombard the surface with the first medium in pulse-like fashion.
2. The cleaning device as claimed in claim 1 , further comprising a control module configured to selectively bombard the surface with the first medium and/or the second medium individually, simultaneously, or alternately.
3. The cleaning device as claimed in claim 1 , wherein the cleaning device is configured to temporally control a composition and order of the media sequence.
4. The cleaning device as claimed in claim 1 , wherein the cleaning valve is configured as a purge valve.
5. The cleaning device as claimed in claim 1 , wherein the plunger is a movable plunger configured to trigger a pulse-like flow of the first medium, wherein the plunger is configured to be controlled via a holding pressure present at the holding port.
6. The cleaning device as claimed in claim 4 , wherein the plunger is configured to allow a flow of the first medium from the holding port to the pressure port and to block this flow in the opposite direction.
7. The cleaning device as claimed in claim 1 , wherein the accumulator is connected to the holding line via an accumulator branch point and an accumulator line.
8. The cleaning device as claimed in claim 7 , wherein an accumulator holding valve is arranged in the accumulator line, wherein the accumulator holding valve is configured as a check valve which blocks against a filling direction of the accumulator.
9. The cleaning device as claimed in claim 1 , wherein the pressure outlet is configured to conduct the first medium onto the surface along a first jet axis.
10. The cleaning device as claimed in claim 9 , wherein the nozzle is configured to conduct the second medium onto the surface along a second jet axis.
11. The cleaning device as claimed in claim 10 , wherein the first jet axis and the second jet axis intersect in a target region on the surface.
12. The cleaning device as claimed in claim 1 , wherein the accumulator has a capacity of 0 cl to 20 cl.
13. The cleaning device as claimed in claim 1 , wherein the accumulator, is arranged in or directly on the cleaning valve.
14. The cleaning device as claimed in claim 1 , wherein the nozzle is supplied via a supply line, wherein the supply line is connected to a second medium supply line via a second changeover valve.
15. A compressed air system comprising:
at least one sensor, wherein the at least one sensor or a transparent cover of the sensor has a surface,
at least one cleaning device as claimed in claim 1 ,
wherein a first medium source of the compressed air system can be connected to the at least one cleaning device via a first supply line, and
wherein a second medium source can be connected to the at least one cleaning device via a second supply line.
16. The compressed air system as claimed in claim 15 , wherein the first medium source supplies an air suspension system or other pneumatic system.
17. The compressed air system as claimed in claim 15 , wherein the second medium source supplies a screen cleaning system or similar cleaning system.
18. The compressed air system as claimed in claim 15 , wherein the sensor is an optical sensor.
19. The compressed air system as claimed in claim 15 , wherein the first medium source has a compressor arrangement and/or a compressed air accumulator.
20. The compressed air system as claimed in claim 15 , wherein the compressed air system comprises at least one supply line check valve in the first medium supply line and/or a first source line.
21. A cleaning method for cleaning a surface the cleaning method comprising:
selectively bombarding the surface with a media sequence of at least a first medium and a second medium by:
charging a accumulator with the first medium;
holding an accumulator pressure in the accumulator by holding a holding pressure at a holding port of a cleaning valve by switching a changeover valve into a holding position; and
bombarding the surface with the second medium and/or bombarding the surface with the first medium, by releasing the holding pressure at the holding port by switching the changeover valve into a release position.
22. The cleaning method as claimed in claim 21 , wherein the bombardment of the surface with the second medium and the bombardment of the surface the first medium take place under temporal control.