JPS57172121A - Heat sensitive tube fixing device - Google Patents

Abstract

PURPOSE:To make it possible to exchange a heat sensitive tube easily by a method wherein in the case of fixing the heat sensitive tube used for an air conditioner or the like, the heat sensitive tube is inserted into a heat conductive metallic pipe of small thickness fixed airtight in a fluid passage and an adiabatic material is put into the metallic pipe so as to sandwich both front and rear ends of the heat sensitive tube to thereby keep the tube warm. CONSTITUTION:A copper pipe 7 of a small thickness is passed through and fixed airtight to a cold or hot water pipe 1 in the direction normal to the flow direction of the cold or hot water. Then the heat sensitive tube 4 is inserted into the copper pipe 7 and the adiabatic material 8 is put into the pipe 7 so as to sandwich the heat sensitive tube 4 from on both ends of the latter to thereby keep the tube 4 warm. With the above structure, the heat sensitive tube 4 is kept at the same temperature as that of the cold or hot water 6 flowing in the cold or hot water pipe 1 as it flows around the copper pipe 7 and due to the existence of the adiabatic material 8 stopping both ends of the tube 4. Further, in case the tube 4 is exchanged, it can be taken out from the copper pipe 7 by mere removal of the adiabatic material 8 from the pipe 7 without removing the cold or hot water 6.