In-position gas analyzing system with in-position calibrating function
A gas analysis system and functional technology, applied in the direction of material analysis, material analysis through optical means, and measuring devices, can solve the problems of complex devices, difficult installation and debugging, high processing and installation accuracy, and achieve simple devices and calibration The effect of reliable results and low assembly precision requirements
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] As shown in Figure 2 and Figure 5, the on-site gas analysis system is a non-dispersive infrared spectroscopy (NDIR) gas analysis system. The light emitting device 1 and the light receiving device 9 are connected to the measured process gas pipeline 4 through a mechanical connection structure, including a flange matching body 2 and a valve 3 . The optical path between the light-emitting device 1 and the light-receiving device 9 can be adjusted by adjusting the bolt 10 on the mechanical connection structure to squeeze the O-ring in the middle of the flange mating body 2 .
[0025] The additional part, that is, the additional tube 5 is installed inside the first measuring tube 13 connected with the mechanical connection structure. The additional tube 5 is pneumatically driven, and the cross section of the additional tube is circular. This structure is easy to process and install. The control device is: the detachable end block 52 is installed on the inner wall of the first...
Embodiment 2
[0028]As shown in Fig. 3 and Fig. 5, the on-site analysis system with on-site calibration function described in Embodiment 1 is provided with a gas chamber 8 near the light receiving device 9, and there are ventilation joints 44, 48 on the chamber. The calibration gas source 57 (including zero gas and calibration gas) is connected to the ventilation joint 44 through the valve 47 .
[0029] The working process is: when measuring, control the additional tube 5 to retract into the inner cylinder 13 on the side of the light emitting device, and fill the internal aperture of the mechanical connection structure and the inner cylinders 13 and 14 through the ventilation joint 41 with a pressure higher than the internal pressure of the process gas pipeline to be measured. Powerful zero gas protects the optical window from contamination and ensures the accuracy of the optical path measurement; the valve 47 is used to control the filling of zero gas into the chamber 8 . During calibratio...
Embodiment 3
[0031] As shown in FIG. 4 and FIG. 5 , the light emitting and receiving device 71 and the light return device 72 are connected to the measured process gas pipeline 4 through a mechanical connection structure, including a flange fitting body 2 and a valve 3 . Others are the same as the gas analysis system described in Embodiment 3.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More