Automatic liquid nitrogen filling system of FTIR on-line monitoring instrument and control method of automatic liquid nitrogen filling system
A monitoring instrument and automatic filling technology, applied in the container discharge method, container filling method, instrument and other directions, can solve the problems of wasting labor, affecting the detection accuracy of the instrument, and difficult to ensure the continuous supply of liquid nitrogen, etc. good stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0038] Example 1
[0039] As one of the embodiments of the present invention, the pressure relief valve 22 is an electromagnetic pressure relief valve 22, and the start and stop of the electric heating device 24 and the pressure relief valve 22 are controlled by an automatic controller, which includes a timer, The automatic controller automatically controls the start and stop states of the electric heating device 24 and the pressure relief valve 22 according to the set time period. The specific control method of this embodiment is: the electric heating device 24 and the pressure relief valve 22 are cyclically opened and closed according to the set time period, and the pressure relief valve 22 is closed synchronously when the electric heating device 24 is opened, and when the electric heating device 24 is closed The pressure relief valve 22 is opened synchronously, and the electric heating device 24 is opened every 8-12h, and each time is opened for 3-10min.
[0040] The system als...
Example Embodiment
[0041] Example 2
[0042] As another embodiment of the present invention, a temperature sensor is also provided in the Dewar of the FTIR online monitoring instrument, and the signal output end of the temperature sensor is electrically connected to an automatic controller, and the automatic controller collects data according to the temperature sensor. The signal controls the start and stop of the pressure relief valve 22 and the electric heating device 24. The specific control method of this embodiment is: controlling the start and stop of the electric heating device 24 and the pressure relief valve 22 according to the collection signal of the temperature sensor set in the Dewar, specifically: when the temperature is higher than -180°C, the electric heating is turned on The device 24 closes the pressure relief valve 22, and when the temperature is less than -193°C, it is continuously maintained for 80s, that is, the addition of liquid nitrogen is considered complete. At this time,...
Example Embodiment
[0043] Example 3
[0044] Such as Figure 4 , 5 As shown, a liquid nitrogen filling pump head includes a pump head base 20 provided at the mouth of the liquid nitrogen storage tank 10, an exhaust channel is opened in the pump head base 20, and the filling pipe 21 In series with the exhaust channel, the pressure relief valve 22 and the lead wires of the electric heating device 24 are installed on the pump head base 20, and the pump head base 20 is equipped with a pressure sensor 23 and a safety valve. The safety pressure of the safety valve is set It is 20Kpa. The present invention carries out an integrated design for the liquid nitrogen filling system, all components are integrated on the pump head base 20, which greatly facilitates the disassembly and installation between the filling system and the liquid nitrogen storage tank 10, and is convenient for quick replacement of liquid nitrogen Storage tank 10.
[0045] Specifically, the pressure relief valve 22 includes a cone-shaped...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap