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Calculation method for pore plate measured superheated steam flow

A technology of superheated steam and calculation method, which is applied in the directions of detecting fluid flow by measuring pressure difference and volume/mass flow generated by mechanical effects, which can solve problems such as complexity, inconvenient operation and calculation, and trouble, and achieve accurate calculation of superheated steam flow Effect

Inactive Publication Date: 2015-05-27
江门天诚溶剂制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is both troublesome and complicated, and it is very inconvenient to operate and calculate.

Method used

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  • Calculation method for pore plate measured superheated steam flow
  • Calculation method for pore plate measured superheated steam flow
  • Calculation method for pore plate measured superheated steam flow

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Embodiment 1

[0010] The method for calculating the flow rate of superheated steam in the orifice plate described in the first embodiment is as follows: using mathematical knowledge and the corresponding relationship in the table to calculate the temperature and pressure compensation formula, which can accurately calculate the density of the superheated steam; the differential pressure flow rate The meter is based on the Bernoulli equation and the fluid continuity equation. According to the throttling principle, when the fluid flows through the throttling piece (such as standard orifice, standard nozzle, long diameter nozzle, classic venturi nozzle, venturi nozzle, etc.) , There is a pressure difference before and after it, this difference pressure value is proportional to the square of the superheated steam flow rate measured by the orifice plate; the theoretical flow calculation formula of the orifice plate flowmeter is:

[0011]

[0012] According to the compensation requirements, it is nece...

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Abstract

The invention discloses a novel calculation method for pore plate measured superheated steam flow, namely the calculation method for the pore plate measured superheated steam flow. A temperature and pressure compensation manner is calculated by using a corresponding relation of a mathematical knowledge combined table, and the density of superheated steam can be accurately calculated and the pore plate measured superheated steam flow can be accurately and efficiently calculated; the novel calculation method is suitable for calculating the measured superheated steam flow of any industry; the superheated steam flow is accurately calculated and the precision can be up to a ten-thousandth grade. In a differential pressure type flow meter, the differential pressure type flow meter of a standard pore plate throttling device has a simple structure and low manufacturing cost, is mostly sufficiently researched and is standardized so that the novel calculation method is mostly widely applied.

Description

Technical field [0001] The invention relates to the technical field of a steam flow calculation method, in particular to an orifice plate measurement superheated steam flow calculation method that obtains the density according to the temperature compensation of the superheated steam, and then calculates the mass flow of the orifice plate according to the flow formula. Background technique [0002] Measuring the flow of superheated steam is mainly to accurately calculate the density of superheated steam. The density of superheated steam does not have a certain linear relationship with temperature and pressure, and it can usually only be obtained by looking up the table. This method is both cumbersome and complicated, and it is very inconvenient to operate and calculate. Summary of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide an orifice plate measuring superheated steam flow calculation metho...

Claims

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Application Information

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IPC IPC(8): G01F1/36
Inventor 赵楚榜于冬娥张剑凌
Owner 江门天诚溶剂制品有限公司