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A simulated drying cylinder rotary condensation test device

A technology for testing devices and drying cylinders, applied to measuring devices, instruments, scientific instruments, etc., can solve the problems that the turntable can only rotate horizontally, cannot rotate vertically, and cannot measure the condensation in the tube, so as to reduce adverse effects and operate accurately status effect

Active Publication Date: 2017-08-18
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention can only test the condensation phenomenon in the tube in the static state, and cannot measure the condensation in the tube in the rotating state; the patent application number is 200910184809.3, and the invention name is "Condensation test device and method under simulated air movement load on the ground" The invention patent discloses a test method and device for simulating condensed steam under air motion loads using a rotating platform
However, the turntable of this invention can only rotate horizontally, not vertically, which is seriously inconsistent with the actual operation mode of the drying cylinder

Method used

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  • A simulated drying cylinder rotary condensation test device
  • A simulated drying cylinder rotary condensation test device
  • A simulated drying cylinder rotary condensation test device

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Experimental program
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Effect test

Embodiment 1

[0038] see figure 1 , the invention discloses a simulated drying cylinder rotation condensation test device and method, including a vertical rotation platform and a condensation heat transfer experiment section applied to the platform. The vertical rotating platform includes a turntable 36, a rotating shaft 35 coaxially rigidly connected with the turntable 36, a speed-regulating motor 17, a turntable counterweight 34, and rotary joints 5 and 16 coaxially connected with the turntable 36; the condensation heat transfer experiment section includes a medium test Tube 32 , coolant tube 31 , camera 33 and differential pressure sensor 40 , tube wall thermocouple set 38 and coolant thermocouple set 39 . The steam is generated by the generator, condensed by the coolant in the experimental section, completely condensed into liquid through the aftercooler, and finally returns to the evaporator to complete a cycle.

[0039]The connection mode of the condensation test heat exchange device...

Embodiment 2

[0041] see image 3 , Considering that the cost of using two constant temperature water baths is too high, therefore, this embodiment uses a cooling tower 46 to supply water to the aftercooler 18 and the cooler 6 at the same time. Cooler 6 cold side channel outlet is connected with cooling tower 46, valve 45, flow meter 44, pump 43 and flow meter 41 through pipeline to cooler 6 cold side channel inlet; A cooling tower 46 , a valve 47 , a flow meter 48 , a pump 49 and a flow meter 51 are sequentially connected between the inlets of the cold side channel of the aftercooler 18 . Wherein, a valve 42 is connected between the outlet of the pump 43 and the inlet of the cooling tower 46, and a valve 50 is connected between the outlet of the pump 49 and the inlet of the cooling tower 46. When the flow rate is high, it can be adjusted to a suitable flow rate by manually adjusting the valve 42 or 50.

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Abstract

The invention discloses a testing device and a testing method for simulating condensation of a drying cylinder during rotation. The testing method is capable of accurately simulating the running state of a drying cylinder, and the rotating speed of a rotary table can be adjusted, so that drying cylinders with different speeds can be simulated. The device consists of a vertical rotating platform and a condensation heat exchange experimental section applied to the rotating platform, wherein the condensation heat exchange experimental section is divided into a steam section and a coolant section, and the steam section is a pipe section made of a transparent material. After the testing device and the testing method are adopted, the condensation phenomenon of the steam in the cylinder can be accurately simulated during the operation of the drying cylinder, and visualization research is carried out on the condensation phenomenon in a channel.

Description

technical field [0001] The invention belongs to the technical field of condensation experiment measurement, and relates to a steam condensation heat exchange device, in particular to a simulated drying cylinder rotation condensation test device and method. Background technique [0002] The paper industry is an important pillar industry of my country's national economy, and it is also a high energy-consuming industry. The drying section is the main energy consumption part in the paper production process. The drying cylinder is the main drying part of the drying section, and the main problem is the accumulation of water in the drying cylinder. In the traditional drying cylinder, the steam is introduced into the large-diameter rotary drying cylinder, and condenses and releases heat in the cylinder. After the heat overcomes the thermal resistance of the layers, it reaches the evaporation surface of the paper sheet to dry the paper sheet. The condensed water in the cylinder is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/20G01N25/14
Inventor 董继先严彦王博史韵
Owner SHAANXI UNIV OF SCI & TECH