| 摘要 |
PURPOSE:To prevent the separation of laminated heat exchanger bodies at the bonding surfaces thereof and prevent the deterioration of heat exchanging efficiency by a method wherein the laminated heat exchanging bodies are pressed into the laminating direction of said laminated heat exchanging bodies, in the laminated heat exchanger employed for a refrigerating machine such as helium refrigerating machine or the like. CONSTITUTION:Heat transfer plates 11 and spacers 12 are laminated alternately through contact surfaces, which are functioning as isolating parts between a fluid flow passageway 24 for high-pressure gas and a fluid flow passageway 25 for low-pressure gas and are bonded by an adhesive agent such as epoxy resin or the like. A header 13 is bonded at one end of laminating direction by the same adhesive agent. Another header 14 is bonded at the other end of laminating direction by the same adhesive agent. In case such laminated heat exchanger is employed for a helium refrigerating machine having a compressor, a multi-stage expansion machine, a Joule-Tomson valve, a condenser or the like, a high-pressure pipeline 33 is connected to the delivery port of the compressor, a cooling coil provided in the cold station of an expanding machine or the like. Thus, the laminated heat exchanging bodies are pressed by the pressure of gas into the laminating direction thereof, therefore, the separation of the laminating heat exchanging bodies at the contact surfaces thereof may be prevented.
|
