Horizontal casing pipe type condenser wall surface multipoint temperature measuring device

Abstract

The invention discloses a horizontal casing pipe type condenser wall surface multipoint temperature measuring device, and belongs to the field of condensation heat transfer coefficient measurement of industrial condensers. The level extension-type condenser wall surface multipoint temperature measuring device comprises a casing pipe. A condensation copper pipe is arranged in the casing pipe in a coaxial and sleeved mode, and casing pipe blanking plugs are each arranged at the two ends of the casing pipe. One end of the condensation copper pipe is connected with a cooling water inlet pipe, and the other end of the condensation copper pipe is connected with a cooling water outlet pipe. PVC connectors are arranged on the outer surface of the cooling water inlet pipe and the outer surface of the cooling water outlet pipe respectively. A ring is arranged in each PVC connector respectively. A steel rod passing through the central axis of the condensation copper pipe is hung on the two rings, and is provided with a plurality of I-type thermocouples used for testing the cooling water temperature. A plurality of grooves are formed in the inner wall of the condensation copper pipe. II-type thermocouples used for testing the condensation copper pipe wall surface temperature are arranged in the groove. The horizontal casing pipe type condenser wall surface multipoint temperature measuring device is reasonable in structure design, simple and easy in operation and high in practicability.

Description

technical field [0001] The invention belongs to the field of measuring condensation heat transfer coefficients of industrial condensers, in particular to a multi-point temperature measuring device on the wall surface of a horizontal sleeve type condenser. Background technique [0002] The horizontal shell-and-tube condenser is widely used in the industrial field. It is one of the main heat exchange equipment in the industrial sector. Its precise design and energy-saving operation are particularly important. It is mainly composed of a cylindrical shell and a horizontal tube bundle. The refrigerant vapor condenses outside the horizontal tube, the condensate flows out from the bottom of the cylinder, and the cooling water flows back and forth in the horizontal tube for many times. In the design of a horizontal shell-and-tube condenser, one of the key parameters is the condensation heat transfer coefficient. At the same time, strengthening heat transfer is also a key link in ene...

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Problems solved by technology

Although there have been many experimental measurement devices for the steam condensation heat transfer heat flow outside the horizontal tube, the accurate measurement of the circumferential condensation heat transfer coefficient, especially the measurement of the circumferential condensation heat transfer coefficient under the condensation of steam containing non-condensable gas , there is still a lack of useful experimental data reports

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