Natural gas measurement error in the solution

Abstract: the natural gas measurement error in the solution of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Weinan and shunda factory technology professional introduction of orifice flowmeter is natural gas flow metering common measurement methods at present. In actual production, due to various factors orifice metering will there is a certain error, great error in the measurement instrument is, however, lead to natural air hole plate. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a natural gas measurement error in the solution article details. Professional manufacturer technology is the gas flow metering orifice flowmeter are introduced common measurement methods. In actual production, due to various factors orifice metering will there is a certain error, however, great error in the measurement instrument is lead to natural air hole plate of the main causes of measurement errors on the high side; In measuring work, measuring instrument error has seriously affect the accuracy of gas flow metering. Reduce the gas flow metering methods for orifice metering error, reduce the gas flow meter error is the key to reduce the error of the measuring instrument, measuring instrument error caused the main reason for the big including error of differential pressure transmitter, temperature sensing companies, gas water cut is high, the low winter temperatures four aspects. 1. 1 error solution differential pressure transmitter ( 1) Taken by the instrument work for differential pressure transmitter calibration measures on a monthly basis. ( 2) For differential pressure transmitter weekly inspection measures, the focus of the inspection is divided into: guide pressure pipe whether there is a jam, corrosion, freezing and leak phenomenon, tube and pipe and the joint of transmitter exists, untight seal leak phenomenon. ( 3) On the joint of pressure pipe heat preservation measures, make the two roots of environmental tube in the same temperature, the purpose is to ensure that the pressure on both sides of guide tube will not caused by temperature difference between the density is different, resulting in pressure head error. Two spring winter low temperature, naked in the air leakage of pressure pipe due to the location, direction, chaoyang, electric heating coil not equal factors caused by temperature difference, resulting in pressure head error, caused the error. To guide joint of pressure pipe insulation, make two guide tube for the same temperature, reduce the measuring error due to temperature difference 1. 2 temperature sensor error solution ( 1) Taken by the instrument calibration of temperature sensors monthly measures. Because of the thermocouple dividing value varies with time and different using conditions change. So if regular supervision and verification or calibration cycle according to the arrangement of the actual usage, can reduce the error caused by instability. ( 2) Take the measure of separate thermocouple and power cable. Thermocouple and power cable line in the same root tube, because the power cable of the electric current is big, will form a strong electric field, the crooked places will form a strong magnetic field, and strong electric field and magnetic field and differential pressure transmitter a weak current signal, temperature sensor lead to inaccurate signal caused by measurement error. ( 3) To take measures on the straight pipe to clean up on a regular basis. Avoided because of the impurity in the gas too much already thermocouple interelectrode and wall insulation fault cause of thermoelectric potential loss caused by the interference, and to avoid the above may be attached to the thermal resistance, hindered the conduction of heat caused by the error. Therefore, we should maintain the cleanness of tube wall and the thermocouple protection tube outside, to reduce the temperature sensor are poor. 1. 3 gas water cut high solution ( 1) From the source to ensure into gas pipeline of natural gas water content up to standard, to gas dehydration, first enter the separator to reduce the moisture content of natural gas; ( 2) Take on the separator and water parts ( Such as the low point of the pipeline) Emptying emptying device installation, regular drainage measures; ( 3) For differential pressure flow meter, electric tropical measures, raise the temperature of natural gas, guarantee the gas above the water dew point temperature, destruction of natural gas hydrate formation conditions, the hydrate decomposition, do not adhere to the orifice plate and guide tube inlet pressure, improve the accuracy of gas flow metering reducing measuring error. 1. 4 environmental temperature solution winter low temperature, low lead to error caused the main reason for the error is: two guide pressure tube temperature is different and more natural gas hydrate formation. As a result, the low winter temperatures at the same time, the differential pressure flow meter with electric heating and can use a common method in natural gas industry, use chemical preparation methanol to inhibit the formation of hydrate. Through the above measures, can effectively reduce the error of the gas flow metering instrument, ensure the measurement accuracy, improve production management level, for the management of natural gas has made a meaningful exploration and try. Flow meter manufacturer is full of longing for the future, solid foundation, advancing with The Times, the good faith management, to, * * products service, dedication to the society, and contribute to the revitalization of China's industrial automation instrument, our future will be common development hand in hand with you! We will be high-quality products, preferential prices, excellent services actively participate in market competition, our company is willing to and users from all walks of life both at home and abroad sincere cooperation, and provide the enthusiasm, high quality and efficient service! Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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