Patent ID: 9709474
Date: 2017-07-18
CPC Classifications: G01F,G01N

Claim:
1. An automatic measuring instrument for an unconventional natural gas content, comprising: a parsing tank, a thermostatic water bath box, a gas collection measuring cylinder, a balance measuring cylinder, a liquid storage tank, a data acquisition and control system and an upper computer, wherein the lower end of the gas collection measuring cylinder is open and the upper end thereof is sealed by a first sealing cover, wherein a first floating sheet is arranged in the gas collection measuring cylinder, wherein the lower end of the balance measuring cylinder is open and the upper end thereof is sealed by a second sealing cover, wherein a second floating sheet is arranged in the gas collection measuring cylinder, wherein both the lower ports of the gas collection measuring cylinder and the balance measuring cylinder are placed below the liquid level of the liquid storage tank, wherein the parsing tank is placed in the thermostatic water bath box and includes a tank body and a third sealing cover, wherein a temperature transmitter is arranged on the third sealing cover, wherein a first photoelectric liquid level sensor is arranged on the first sealing cover, wherein a second photoelectric liquid level sensor is arranged on the second sealing cover, wherein a first gas guide tube is connected to the internal space of the parsing tank and the internal space of the gas collection measuring cylinder, wherein a second gas guide tube is connected to the internal space of the balance measuring cylinder and external atmosphere, wherein a normally-opened electromagnetic valve is arranged on the first gas guide tube, wherein the first gas guide tube is also connected with an evacuation branch gas tube which is equipped with a normally-closed electromagnetic valve, wherein the temperature transmitter, the first photoelectric liquid level sensor, the second photoelectric liquid level sensor, the normally-opened electromagnetic valve, a normally-closed electromagnetic valve, and a driving device of a lifting device are electrically connected with the data acquisition and control system respectively, wherein the data acquisition and control system is electrically connected with the upper computer; and a lifting device driving the gas collection measuring cylinder and the balance measuring cylinder to move up and down relative to the liquid storage tank.