Temperature Control System for Printing Machines Having Several Temperature Levels

Abstract

An arrangement on a printing machine, includes at least one low-temperature (NT), medium-temperature (MT) and high-temperature (HT) temperature control point, which are arranged in a low-temperature (NT), a medium-temperature (MT), and at least one high-temperature (HT) zone of a printing machine and are designed such that the NT zone can be controlled to a low temperature by the NT temperature control point, the MT zone to a medium temperature by the MT temperature control point, and the HT zone to a high temperature by the HT temperature control point, the low temperature being lower than the medium temperature, and the medium temperature being lower than the high temperature. The arrangement includes a low-temperature (NT) temperature control device and a high-temperature (HT) temperature control device. The temperature at the MT temperature control point can be controlled by both the NT and the HT temperature control device.

1 . An arrangement on a printing machine, comprising at least one low-temperature NT temperature control point, at least one medium-temperature MT temperature control point, and at least one high-temperature HT temperature control point, which are arranged in a low-temperature NT zone, a medium-temperature MT zone, and at least one high-temperature HT zone, respectively, of a printing machine and are designed such that the NT zone is adapted to be controlled to a low temperature by the NT temperature control point, the MT zone to a medium temperature by the MT temperature control point, and the HT zone to a high temperature by the HT temperature control point, the low temperature being lower than the medium temperature and the medium temperature being lower than the high temperature,
 wherein the arrangement comprises a central heat exchange system designed such that the NT temperature control point, the MT temperature control point, and the HT temperature control point are adapted to be temperature controlled via the central heat exchange system, the central heat exchange system including a pipe system through which a heat exchange fluid passes, and   wherein the heat exchange system is connected with the NT temperature control point, the MT temperature control point, and the HT temperature control point such that heat flows are adapted to be transferred between the NT temperature control point and the heat exchange fluid, between the MT temperature control point and the heat exchange fluid, and between the HT temperature control point and the heat exchange fluid.   
     
     
         2 . The arrangement according to  claim 1 , wherein the arrangement further comprises a cold generator arranged and designed such that the NT temperature control point is adapted to be further temperature controlled by the cold generator. 
     
     
         3 . The arrangement according to  claim 2 , wherein both the NT temperature control point and the MT temperature control point are adapted to be further temperature controlled by the cold generator. 
     
     
         4 . The arrangement according to  claim 2 , wherein the cold generator is arranged such that exhaust heat flow generated by the cold generator is adapted to directly be transferred to the heat exchange fluid in the central heat exchange system. 
     
     
         5 . The arrangement according to  claim 1 , wherein the arrangement further comprises a cooling device. 
     
     
         6 . The arrangement according to  claim 5 , wherein both the HT temperature control point and the MT temperature control point are adapted to be further temperature controlled by the cooling device. 
     
     
         7 . (canceled) 
     
     
         8 . (canceled) 
     
     
         9 . The arrangement according to  claim 2 ,
 wherein the arrangement further comprises a cooling device, and   wherein the cold generator and the cooling device, in an operating state of the printing machine, are adapted to be brought into a cooling relationship with the MT temperature control point dependent on an ambient temperature around the cooling device.   
     
     
         10 . The arrangement according to  claim 5 , wherein the arrangement is designed such that a heat flow is adapted to be transferred from at least one of the MT temperature control point and the HT temperature control point to the cooling device via the heat exchange fluid in the central heat exchange system. 
     
     
         11 . (canceled) 
     
     
         12 . (canceled) 
     
     
         13 . (canceled) 
     
     
         14 . (canceled) 
     
     
         15 . The arrangement according to  claim 1 ,
 wherein the central heat exchange system comprises a heat exchange circuit with a central inlet and a central outlet,   wherein several, parallel partial branches extend between the central inlet and the central outlet,   wherein a partial inlet of a partial branch passes to one of the temperature control points,   wherein a partial outlet of a partial branch, coming from said one of the temperature control points, leads to the central outlet such that a central heat exchange fluid flow in the central inlet is adapted to be divided into different heat exchange fluid partial flows,   wherein the different heat exchange fluid partial flows are adapted to be fed to different temperature control points, and   wherein the different heat exchange fluid partial flows, coming from the different temperature control points, are adapted to be brought together again in the central outlet to form the central heat exchange fluid flow.   
     
     
         16 . The arrangement according to  claim 15 , wherein at least one of the partial branches is adapted to be cut off via a valve. 
     
     
         17 . The arrangement according to  claim 15 , in which at least part of the heat flow transferred to the heat exchange fluid is adapted to be dissipated to a heat consumer. 
     
     
         18 . The arrangement according to  claim 17 , wherein the part of the heat flow that is adapted to be dissipated is adapted to be removed from the partial outlet of a partial branch. 
     
     
         19 . (canceled) 
     
     
         20 . The arrangement according to  claim 5 ,
 wherein the cooling device comprises a separate cooling circuit in heat-exchanging relationship with the heat exchange fluid flow via a heat exchanger, and   wherein the separate cooling circuit is adapted to be controlled via a cooling circuit valve.   
     
     
         21 . (canceled) 
     
     
         22 . The arrangement according to  claim 1 , wherein the central heat exchange system is in a heat-exchanging relationship with individual temperature control point circuits, which are hydraulically separated from the central heat exchange system. 
     
     
         23 . (canceled) 
     
     
         24 . The arrangement according to  claim 22 , in which at least part of the heat flow transferred to the heat exchange fluid is adapted to be dissipated to a heat consumer. 
     
     
         25 . The arrangement according to  claim 22 ,
 wherein at least part of an exhaust heat flow arising at an operating point is adapted to be dissipated to a heat consumer, and   wherein the arrangement is designed such that this exhaust heat flow is adapted to be dissipated from a point of the respective temperature control point circuit which is arranged downstream of the temperature control point before the central heat exchange system.   
     
     
         26 . (canceled) 
     
     
         27 . (canceled) 
     
     
         28 . (canceled) 
     
     
         29 . The arrangement according to  claim 1 , further comprising a buffer storage in which heat is adapted to be temporarily stored in a heat storage substance. 
     
     
         30 . (canceled) 
     
     
         31 . The arrangement according to  claim 5 ,
 wherein two central heat exchange systems are provided,   wherein one of the two central heat exchange systems is provided to supply heat consumers with heat, and   wherein the other of the two central heat exchange systems comprises the cooling device.   
     
     
         32 - 88 . (canceled)