公开(公告)号：WO2023036987A1

公开(公告)日：2023-03-16

申请号：PCT/EP2022/075306

申请日：2022-09-12

Applicant: RIOGLASS SOLAR SCH, S.L.

Inventor： MACCARI, Augusto ,  ESQUINAS NAVAS, Evaristo Manuel ,  MORALES GARCÍA, Ana Isabel ,  NÚÑEZ, Juan Pablo ,  MUÑOZ, Álvaro

IPC: F24S40/00 ,  F24S90/00

Abstract: The present invention relates to a device (1) for monitoring the conditions of a thermal fluid, comprising: an inner tube (2) with a length L1 and an outer diameter D1, and an outer tube (3) with a length L2, wherein the outer tube (3) comprises a central portion with an inner diameter D2 and ends (3.1,3.2), the inner diameter Di of which gradually decreases towards the narrowest part thereof having a diameter De, wherein the inner diameter De is smaller than the inner diameter D2. The inner tube (2) is arranged coaxially inside the outer tube, the length L1 of the inner tube (2) is greater than the length L2 of the outer tube (3), and the inner diameter De substantially coincides with the outer diameter Di, such that a substantially airtight chamber (5) is formed between the outer tube (3) and the inner tube (2). The device (1) also comprises connection means (4) located on the outside of the outer tube (3), configured for establishing a fluidic communication with the substantially airtight chamber (5) and for coupling a vacuum pump. The inner tube (2) is permeable to gas and configured for transporting a thermal fluid, and the outer tube (3) is made of metal.