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Steam flow measuring method and steam flow measuring device thereof

A technology of a flow measurement device and a measurement method, which is applied in the direction of detecting fluid flow by measuring pressure difference, volume/mass flow generated by mechanical effects, etc., can solve problems such as limited precision and difficulty in implementation, and achieve easy adjustment and control, simple methods and The effect of the device

Active Publication Date: 2016-01-06
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many methods for measuring wet steam dryness, none of them are easy to implement and have limited accuracy

Method used

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  • Steam flow measuring method and steam flow measuring device thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 shown.

[0030] A steam flow measurement method, comprising the following steps:

[0031] A, use steam generator 13 to generate steam;

[0032] B. Use the transition section I1 to rectify the steam of the steam generating device 13 to form rectified wet steam;

[0033] C. Use the heating device to reheat the rectified wet steam to ensure that the steam output by the heating device is superheated steam;

[0034] D. The superheated steam output by the heating device is input into the transition section II5, and the pressure measurement assembly 6 and the temperature measurement assembly 7 are arranged on the transition section II5. The pressure measurement assembly 6 and the temperature measurement assembly 7 input the measured parameters to the computer 11, The TP parameters measured by the pressure measuring component 6 and the temperature measuring component 7 determine whether the steam output by the heating device is superheated steam, and the TP par...

Embodiment 2

[0040] like figure 1 Shown: according to above-mentioned measuring method, the present invention is provided with a kind of steam flow measuring device, comprises the steam generating device 13 for generating steam, and steam generating device 13 is communicated with Venturi flowmeter 9, and the steam outlet of steam generating device 13 is connected with A rectification heating device is arranged between the Venturi flowmeters 9, the rectification heating device includes a transition section I1, the transition section I1 is also connected to a heating device, the heating device is also connected to a transition section II5, and the transition section II is connected to the Venturi flowmeter 9, The transition section I1 communicates with the steam output port of the steam generating device 13, wherein the transition section II5 is provided with a pressure measuring assembly 6 and a temperature measuring assembly 7, an intelligent differential pressure transmitter 8 is provided ...

Embodiment 3

[0045] On the basis of Embodiment 2, preferably, the heating device includes a heating tube 4, and the conductive copper plate 3 is arranged at both ends of the heating tube, the conductive copper plate 3 at the front end communicates with the transition section I1 through the insulating flange 2, and the conductive copper plate 3 at the rear end communicates with the transition section I1. The copper plate 3 communicates with the transition section II5 through the insulating flange 2 , and the conductive copper plates 3 at both ends are connected to the positive and negative poles of the DC power supply 10 .

[0046] The outer wall of the heating tube is provided with an insulating layer.

[0047] The inner wall surface of the heating pipe is an internal thread structure.

[0048] The key point of the present invention lies in the heating device, the transition section I1 and the transition section II5. The heating device is preferably carried out in the form of an electric h...

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PUM

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Abstract

The invention discloses a steam flow measuring method and a steam flow measuring device thereof. The steam flow measuring device comprises a steam generation device used to generate steam, the steam generation device is communicated with a Venturi meter, a rectification heating device is arranged between the steam outlet of the steam generation device and the Venturi meter, the rectification heating device comprises a transition section I, the transition section I is also communicated with a heating device, the heating device is also communicated with a transition section II, the transition section II is communicated with the Venturi meter, and the transition section I is communicated with the steam outlet of the steam generation device. The transition section II is provided with a pressure measuring assembly and a temperature measuring assembly. The Venturi meter is provided with an intelligent pressure difference transmitter. The device also comprises a computer, signals of the pressure measuring assembly, signals of the temperature measuring assembly, and signals of the intelligent pressure difference transmitter are input to the computer. The computer is used to calculate wet steam flow.

Description

technical field [0001] The invention relates to a steam flow measurement technology, in particular to a steam flow measurement method and a steam flow measurement device. Background technique [0002] In the vapor flow measurement technique, the coolant circulates in the test circuit, absorbing heat at the heat source and releasing heat at the heat sink. After absorbing heat, liquid water undergoes boiling phase transition and is called wet steam or superheated steam; after exothermic, steam condenses into liquid water. The phase transition process alternates and reciprocates. [0003] In thermohydraulic experiments, the pressure, temperature and flow of coolant are all physical quantities that need to be measured. The flow measurement of single-phase liquid and single-phase gas is relatively mature. Common differential pressure measurement devices, such as orifice flowmeters and Venturi flowmeters, can measure with high accuracy. However, the flow measurement of two-phas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/36
Inventor 黄彦平唐瑜徐建军洪刚谢添舟
Owner NUCLEAR POWER INSTITUTE OF CHINA