Novel low-temperature Coriolis mass flow meter
A mass flow meter and Coriolis technology, applied in the field of measuring tools, can solve the problems of insufficient LNG temperature and low LNG temperature, and achieve the effects of low manufacturing difficulty, high recycling rate and easy installation.
Active Publication Date: 2014-02-12
重庆耐德能源装备集成有限公司
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Problems solved by technology
The measurement of liquefied natural gas used in automobiles is now measured by it. Currently, the main body of the Coriolis mass flowmeter for measuring liquefied natural gas on the market usually only has one measuring tube in the "U"-shaped tube, and the temperature of the measuring tube depends on it. The cold insulation chamber between the outer wall and the inner wall of the cold insulation pipe is used to maintain this structure. When measuring liquefied natural gas, because the temperature of liquefied natural gas is very low, usually more than one hundred degrees below zero, only the cold insulation chamber is used to maintain the liquefaction of the flow in the measurement pipe. Gas temperature is not enough
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[0010] The present invention will be further described below in conjunction with drawings and embodiments.
[0011] like figure 1 As shown, the present invention includes components such as a cold insulation tube 1, a measuring tube 2, an oscillating coil 3, an inlet detection coil 4, an outlet detection coil 5, and a cooling tube 6. The cold insulation tube 1 is preferably in a "U" shape. 1 is a hollow structure with both ends closed, and a "U"-shaped measuring tube 2 is arranged in the cooling tube 1, and the inlet end 2a and the outlet end 2b of the measuring tube 2 protrude from the two ends of the cooling tube 1 respectively. The middle part of the measuring tube 2 is set with a vibrating coil 3, and the two curved sections of the measuring tube 2 are respectively set with an inlet detection coil 4 and an outlet detection coil 5, and a cooling tube 6 is also arranged in the inner cavity of the cold preservation tube 1. The cooling pipe 6 is cylindrical, the inlet end and...
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The invention discloses a novel low-temperature Coriolis mass flow meter. The novel low-temperature Coriolis mass flow meter comprises a U-shaped cold insulation tube 1. The cold insulation tube 1 is of a hollow structure and the two ends of the cold insulation tube 1 are sealed. A U-shaped measuring tube 2 is arranged inside the cold insulation tube 1, the inlet end 2a of the measuring tube 2 and the outlet end 2b of the measuring tube 2 stretch out of the two ends of the cold insulation tube 1 respectively, the middle of the measuring tube 2 is sleeved with an oscillation starting coil 3, the two bent sections of the measuring tube 2 are sleeved with an inlet detection coil 4 and an outlet detection coil 5 respectively, a cooling tube 6 is further arranged in an inner cavity of the cold insulation tube 1, the cooling tube 6 is arranged on the outer side of the measuring tube 2, the cooling tube 6 and the measuring tube 2 are arranged side by side, and the inlet end of the cooling tube 6 and the outlet end of the cooling tube 6 stretch out of the cold insulation tube 1 respectively. According to the novel low-temperature Coriolis mass flow meter, the cooling tube is arranged in the cold insulation tube, the temperature of liquid inside the measuring tube is effectively maintained in the measuring process, and meanwhile, the novel low-temperature Coriolis mass flow meter further has the advantages of being low in manufacturing difficulty, simple and convenient to install, high in circulation utilization rate and the like.
Description
technical field [0001] The invention relates to a measuring instrument, in particular to a Coriolis mass flowmeter used at low temperature. Background technique [0002] The Coriolis mass flowmeter is a novel instrument for directly and precisely measuring the mass flow of fluids. Its invention is the result of decades of hard work in the scientific and technological circles. There are no blocking elements and movable parts in the fluid channel, so it has good reliability and long service life, and can also measure the flow of high-viscosity fluid and high-pressure gas. The measurement of liquefied natural gas used in automobiles is now measured by it. Currently, the main body of the Coriolis mass flowmeter for measuring liquefied natural gas on the market usually only has one measuring tube in the "U"-shaped tube, and the temperature of the measuring tube depends on it. The cold insulation chamber between the outer wall and the inner wall of the cold insulation pipe is use...
Claims
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IPC IPC(8): G01F1/84
Inventor 廖华胡术生李鸿军袁利波
Owner 重庆耐德能源装备集成有限公司