A method of using a device for testing the saturated vapor pressure of liquid substances under high temperature conditions
A vapor pressure, substance technology, applied in the direction of analyzing materials, instruments, etc., can solve problems such as the absence of test liquid substances
Active Publication Date: 2016-09-21
CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG +1
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Problems solved by technology
[0004] The invention provides a method for using a device for testing the saturated vapor pressure of liquid substances under high temperature conditions, which solves the defect that there is no necessary test device and method for testing the evaporation performance of liquid substances under high temperature conditions in the prior art
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[0024] The present invention will be further described below in conjunction with accompanying drawing:
[0025] combine Figure 1 to Figure 3 , a method for testing the saturated vapor pressure of liquid substances under high temperature conditions, including a nitrogen cylinder 1 and a pressure tracking device 8, and also includes a control system, a calorimeter tank 7, a heating device 6 and a pressure vessel 5. The control system includes a controller 13 and a computer 14 . The calorimeter 7 is provided with a calorimeter pressure sensor interface 15, a calorimeter temperature sensor interface 16 and a calorimeter feed port, and the calorimeter feed port is provided with a calorimeter plug 17, and the calorimeter The pressure sensor interface 15 and the calorimeter tank temperature sensor interface 16 are respectively connected to the calorimeter tank pressure sensor 10 and the calorimeter tank temperature sensor 11 . The heating device 6 is connected to a heating device ...
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Abstract
The invention discloses a using method of a device for testing saturated vapor pressure of a liquid substance under a high-temperature condition. The device comprises a nitrogen cylinder, a pressure tracking device, a control system, a heat measuring tank, a heating device and a pressure container. The control system comprises a controller and a computer. The heat measuring tank is mounted in the heating device, the heating device is mounted in the pressure container, the pressure tracking device and a pressure sensor of the pressure container, which are connected out of the pressure container, the pressure sensor of the heat measuring tank and a temperature sensor of the heat measuring tank, which are connected out of the heat measuring tank, and a heating device controller connected out of the heating device are connected on the controller, and the controller is connected with the computer. In the using process, a precision temperature and pressure testing system in the computer can record pressure data of the liquid substance under different temperature conditions so as to measure the saturated vapor pressure of the liquid substance under the high-temperature condition.
Description
technical field [0001] The invention relates to the technical field of studying the evaporation performance test of liquid substances under high temperature conditions, in particular to a method for using a device for testing the saturated vapor pressure of liquid substances under high temperature conditions. Background technique [0002] Saturation vapor pressure refers to the maximum pressure shown by the evaporation of the liquid surface when the gas-liquid two phases of the liquid substance are in equilibrium in an appropriate container under specified conditions. Saturation vapor pressure is an important physical parameter to evaluate the evaporation performance of liquid substances, and has an important impact on the storage, transportation and use of liquid substances. It is also the main physical parameter commonly used in chemical production, scientific research and design. [0003] At present, the main standard methods for determining the saturated vapor pressure ...
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IPC IPC(8): G01N7/00
Inventor 金满平孙峰张晨徐伟石宁
Owner CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG