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Device for measuring density and flow rate of supercritical cracking product of hydrocarbon fuel, and measurement method thereof

A flow rate measurement device and pyrolysis product technology, which can be used to determine the specific gravity by measuring the pressure difference and measure the fluid velocity by using the pressure difference, and can solve the problems that the orifice flowmeter cannot adapt

Active Publication Date: 2012-06-20
SICHUAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The inner diameter of the existing orifice flowmeter pipe generally requires more than 50mm (GB / T 21446-2008), while the fuel channel used for scramjet cooling is generally less than 3mm, the current mature orifice flowmeter cannot adapt This working condition

Method used

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  • Device for measuring density and flow rate of supercritical cracking product of hydrocarbon fuel, and measurement method thereof
  • Device for measuring density and flow rate of supercritical cracking product of hydrocarbon fuel, and measurement method thereof
  • Device for measuring density and flow rate of supercritical cracking product of hydrocarbon fuel, and measurement method thereof

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Embodiment

[0058] Such as figure 1 As shown, the device for measuring the density and flow velocity of supercritical cracking products of hydrocarbon fuels is connected by a pressurized gas source 1 through a needle valve 2 and an oil storage tank 3, and the oil storage tank passes through a flow regulating valve 4, a mass flow meter 5 and a heating pipe 6 connection, the heating pipe is connected to the orifice pressure taking device 11, and the orifice pressure taking device is connected to the back pressure valve 13 through the condenser 12.

[0059] The orifice pressure taking device 11 is provided with a differential pressure transmitter 10, the orifice pressure taking device 11, a pressure gauge 9 and a thermocouple 8 are arranged at the front end, and the orifice diameter of the orifice pressure taking device is 1.5-5mm.

[0060] The heating tube is connected to the AC power supply 7.

[0061] An oil inlet is established on the oil storage tank 3, and an oil outlet is established...

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Abstract

The invention discloses a device for measuring the density and the flow rate of a supercritical cracking product of hydrocarbon fuel, and a measurement method thereof. The device is characterized in that: a pressurized air source (1) is connected with an oil tank (3) through a needle valve (2); the oil tank is connected with a heating pipe (6) through a flow regulating valve (4) and a mass flowmeter (5); the heating pipe is connected with a pore plate pressure taking device (11); a pressure difference transmitter (10) is arranged on the pore plate pressure taking device (11); and a throttle orifice of the pore plate pressure taking device has the diameter of 1.5-5mm. On the basis of a mass flow measurement technology, a nonstandard small-bore pore plate pressure taking device is developed, the density and flow rate of a high temperature heterogeneous reaction medium under the condition of a small pipe diameter are measured, and a problem of on-line measurement of the density and flow rate of a medium in engineering study on supercritical cracking of an active cooling system of a supersonic combustion ramjet engine and the like.

Description

technical field [0001] The invention relates to a device for measuring the density and flow velocity of high-temperature cracking products of hydrocarbon fuels and a measuring method thereof, and belongs to the fields of engineering thermophysics and fuel physical property testing. Background technique [0002] Scramjet technology requires a certain flow of hydrocarbon fuel to be heated in a small-diameter cooling channel and undergo phase change and cracking reactions to absorb the heat in the combustion chamber of the engine, thereby cooling the engine. The inner diameter of the cooling channel is generally below 3mm. Due to the existence of the reaction, there are multiphase equilibrium problems such as gas-liquid (liquid fuel and steam) and gas-solid (cracked gas and coke particles) in the high-temperature system. At present, there is no method to realize the phase change and cracking reaction process of fuel at high temperature. On-line determination of density and flo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/26G01P5/14
Inventor 李象远李翔王健礼王军朱权高敏
Owner SICHUAN UNIV
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