Coating system having a cooling device

Patent metadata

Field	Value
Publication number	US-9956577-B2
Application number	US-201414782645-A
Country	US
Kind code	B2
Filing date	Apr 7, 2014
Priority date	Apr 12, 2013
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

The disclosure relates to a paint system for coating components with a coating medium, in particular a painting system for painting motor vehicle bodywork components with a paint, comprising at least one pneumatic pump for circulating paint in the system. The pneumatic pump includes a feed air connection for feeding in a feed air stream for mechanically powering the pump and an exhaust air connection for conducting away a depressurised, cold exhaust air stream. The cold exhaust stream passing through a first heat exchanger where the heat exchanger cools a medium in a cooling circuit and the medium cools a heat-sensitive component. The heat sensitive component can be the paint circulation lines or a protective housing for the robot.

First claim

The invention claimed is:

1. A paint system for painting components with a paint, comprising:
a plurality of pneumatic pumps, the pneumatic pumps configured to supply a plurality of paints having different colours, the pneumatic pumps all having a feed air connection to provide a feed air stream for mechanically powering each pump, and each pump having an exhaust air connection for conducting away a depressurised, exhaust air;
a first heat exchanger that receives the depressurized exhaust air; the heat exchanger cooling a medium in a cooling circuit;
a heat-sensitive component that is cooled by the cooling circuit wherein the heat-sensitive component communicates with a paint robot for coating components with paint.

2. The paint system of claim 1 , wherein the cooling circuit has a plurality of second heat exchangers to transfer heat from the heating-sensitive component to the medium.

3. The paint system of claim 2 , wherein
the exhaust air connection of the pump is connected by means of a cold air line to the first heat exchanger;
the cold air line has a thermal insulation on the outside thereof, said thermal insulation extending over a majority of the length of the cold air line.

4. The paint system of claim 1 , wherein the first heat exchanger is an air/air heat exchanger.

5. The paint system according to claim 1 , wherein the first heat exchanger is an air/water heat exchanger.

6. The paint system of claim 1 wherein the cooling medium in the cooling circuit is air.

7. The paint system of claim 1 , wherein the cooling medium in the cooling circuit is water.

8. The paint system of claim 1 , wherein:
the heating-sensitive component of the paint system is a plurality of paint circulation lines each paint circulation line having different colour of paint;
the cooling circuit including a plurality of second heat exchangers with each of the second heat exchangers configured to remove heat from of the paint circulation lines.

9. The paint system of claim 1 , wherein:
the heating-sensitive component of the paint system is a protective housing; and
the cooling circuit introduces cold air into the protective housing and conducts warm air out of the protective housing.

10. The paint system of claim 9 , wherein the protective housing surrounds a travel axis of the robot.

Assignees

• Duerr Systems Gmbh
• Duerr Systems Gmbh

Inventors

• Schenke Bjorn
• Schafer Ralf
• Hoderlein Armin

Classifications

• B05B15/1222

  Operations & Transport · mapped topic

• B05B9/0409 Primary

  the pumps being driven by a hydraulic or a pneumatic fluid · CPC title

• B05C5/001 Primary

  incorporating means for heating or cooling the liquid or other fluent material (B05C11/1042 takes precedence) · CPC title

• B05C11/1039

  Recovery of excess liquid or other fluent material; Controlling means therefor · CPC title

• F28D21/0003

  the heat being recuperated from exhaust gases (F28D21/0014 takes precedence) · CPC title