Device for controlling the temperature of objects

Patent metadata

Field	Value
Publication number	US-11525631-B2
Application number	US-201716471642-A
Country	US
Kind code	B2
Filing date	Dec 7, 2017
Priority date	Dec 21, 2016
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

A device for controlling the temperature of, and in particular for drying, objects, in particular vehicle bodies, having a housing which integrates a temperature-control chamber that includes at least one air outlet and at least one air inlet. The temperature-control chamber is assigned at least one heating unit in which it is possible to generate a hot primary gas flow and to which it is possible to supply, from the air outlet, air that is to be heated. The heating unit includes a heat exchanger device into which the hot primary gas can be guided and in which it is possible to heat air from the temperature-control chamber using hot primary gas, which air can be supplied, as heated recirculation air, in a circuit via the at least one air inlet back to the temperature-control chamber. The heating unit includes at least a first and a second flow outlet via which heated recirculation air leaves the heating unit.

First claim

What is claimed is:

1. A device for controlling the temperature of objects, comprising:
a) a housing in which a temperature-control chamber is housed that includes at least one air outlet and at least one air inlet;
wherein
b) at least one heating unit, in which a hot primary gas flow can be generated and to which air to be heated can be supplied from the at least one air outlet, is associated with the temperature-control chamber;
c) the at least one heating unit includes a heat exchanger device having two flow paths fed from the at least one air outlet and in which the air to be heated from the temperature-control chamber can be heated by the hot primary gas, the air being separately heated in each of the at least two flow paths and supplied to the temperature-control chamber as heated recirculation air in a circuit;
d) the at least one heating unit includes at least a first flow output and a second flow output, wherein a first portion of heated recirculation air is heated in a first flow path of the at least two flow paths and exits the at least one heating unit through the first flow output and a second portion of heated recirculation air is heated in a second flow path of the at least two flow paths and exits the at least one heating unit through the second flow output, the first output and the second flow output each separately feeding the temperature-control chamber.

2. The device as claimed in claim 1 , wherein the first and second flow output each has a dedicated blower for conveying the recirculation air.

3. The device as claimed in claim 1 , wherein the first flow path is part of a first heat exchanger and the second flow path is part of a second heat exchanger, wherein air heated by means of the first heat exchanger exits the heating unit via the first flow output and air heated by means of the second heat exchanger exits the heating unit via the second flow output.

4. The device as claimed in claim 3 , wherein a separate burner with which primary gas can be produced for each heat exchanger, is associated with each heat exchanger of the heat exchanger device.

5. The device as claimed in claim 1 , wherein primary gas that has heated air in the first flow path or the second flow path flows out as burner exhaust air via a discharge port, wherein the flow of the primary gas can be adjusted.

6. A device as claimed in claim 1 , wherein one or more temperature sensors are provided, by means of which the temperature of the air to be heated and/or the temperature of the heated air can be detected.

7. The device as claimed in claim 1 , wherein the temperature-control chamber is constructed of a plurality of dryer modules, of which at least one dryer module is embodied as an aggregate module with a heating unit and at least one dryer module is a pressure chamber module with a pressure chamber, which is connected to at least one of the first flow output or the second flow output of the heating unit and from which heated air can flow into the temperature-control chamber.

8. The device as claimed in claim 7 , wherein the aggregate module works with two pressure chamber modules.

9. The device as claimed in claim 7 , wherein the aggregate module on each side of the temperature-control chamber includes a heating unit or that the aggregate module on only one side of the temperature-control chamber includes a heating unit or that the aggregate module includes a heating unit that is housed above the temperature-control chamber.

10. The device as claimed in claim 5 , the primary gas is adjusted by a regulating flap.

11. The device as claimed in claim 1 , wherein the first portion of the heated recirculation air from the heat exchanger device flows through a first pressure chamber before entering the temperature-control chamber, and the second portion of the heated recirculation air from the heat exchanger device flows through a second pressure chamber before entering the temperature-control chamber.

12. The device as claimed in claim 1 , wherein the at least one heating unit includes one burner and one combustion chamber, wherein hot primary gas from the one combustion chamber is used to heat air in each of the first flow path and the second flow path.

13. The device as claimed in claim 1 , wherein the at least one heating unit includes two burners, each burner having its own combustion chamber producing the hot primary gas, wherein air from the hot primary gas from the first combustion chamber is used to heat air in the first flow path and the hot primary gas from the second combustion chamber is used to heat air in the second flow path.

Assignees

• Eisenmann Se
• Eisenmann Gmbh

Inventors

• Moll Mathias
• Sonner Harald

Classifications

• F26B21/37

  Velocity of flow; Quantity of flow · CPC title

• F26B21/25

  partly outside the drying enclosure · CPC title

• F26B21/35 Primary

  Temperature; Pressure · CPC title

• F26B23/02

  using combustion heating ({F26B3/305, F26B13/186, F26B21/001, } F26B23/10 take precedence) · CPC title

• F26B23/002

  recovered from dryer exhaust gases (F26B23/022 takes precedence) · CPC title