Detection standardization experimental apparatus platform for high-temperature high-pressure chemical sensor

A technology for chemical sensors and experimental devices, applied in measurement devices, scientific instruments, instruments, etc., can solve problems such as easy failure, damage to electrodes, short circuit of measurement circuits, etc., and achieve good sealing effect and high sealing effect.

Inactive Publication Date: 2005-12-14
张荣华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The autoclave in the existing detection and calibration experimental device is usually a closed system. Such an experimental device cannot well simulate the actual working environment of the chemical sensor flowing and opening on the seabed, and has a great impact on many performances of the tested chemical sensor in the real working environment. None of the parameters can be detected, and the quality of detection and calibration is not high
[0006] 2. The autoclave that provides a high-temperature and high-pressure liquid environment in the existing detection and calibration experimental equipment is usually sealed with Teflon between it and the chemical sensor to be tested. Under high temperature and high pressure, Teflon will soften, so additional cooling is required. system, resulting in the entire chemical sensor detection device being bulky and inaccurate in measurement and calibration
[0007] 3. The sealing structure between the reported chemical sensor and the autoclave is easy to fail under high temperature and high pressure, resulting in damage to the electrode or short circuit of the measurement circuit, resulting in rapid failure of the sensor

Method used

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  • Detection standardization experimental apparatus platform for high-temperature high-pressure chemical sensor
  • Detection standardization experimental apparatus platform for high-temperature high-pressure chemical sensor
  • Detection standardization experimental apparatus platform for high-temperature high-pressure chemical sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Such as figure 1 As shown, a high-temperature and high-pressure solution pH chemical sensor detection and calibration experimental device platform includes an autoclave 506 capable of installing multiple chemical probes of pH chemical sensors, and also includes a high-temperature and high-pressure flow system connected to the autoclave 506, which includes a medium Input system and media output system.

[0072]The medium input system includes a high-pressure liquid pump 502, the input end of which is connected to a liquid container 501 through a pipeline, and the output end is connected to the fluid inlet on the autoclave 506 through a high-pressure pipeline; the medium output system includes a high-pressure meter 507, a back The pressure controller 508, the output solution pipeline, the liquid collection container 511, and the liquid output port of the autoclave are sequentially connected to the high pressure meter, the back pressure controller and the output solution cont...

Embodiment 2

[0098] Such as Figure 6 As shown, it is a kind of H 2 High temperature and high pressure of autoclave for chemical sensor H 2 Chemical sensor detection and calibration experimental device platform.

[0099] The H 2 Chemical sensor detection and calibration experimental device platform, including the ability to install H 2 The tubular autoclave 602 of the multiple chemical probes 603 of the chemical sensor is made of titanium (or Hastelloy), which is installed with high pressure and high temperature H 2 Tubular autoclave for chemical sensors. There are 4 electrode jacks. The electrode jacks are arranged on the evenly distributed circumferential side wall in the middle of the autoclave and are located on the same horizontal plane. Two of the holes are M20 and two are M8. Four chemical sensor electrodes are inserted on the side wall of the autoclave. In this embodiment, three electrodes can be inserted: Au (or Pt) electrode, YSZ / HgO / Hg electrode and Zr / ZrO 2 electrode. The above-men...

Embodiment 3

[0127] Such as Picture 9 As shown, the experimental device platform is equipped with two sets of autoclaves, which share a liquid input system. The liquid outlet of each autoclave is connected to its own liquid output system. The two autoclaves are each equipped with several chemical sensor electrodes. It can either be connected to their respective electrochemical parameter measurement system, or can be connected to an electrochemical parameter measurement system for data collection and display. Specifically, the input port of the high-pressure liquid pump 904 is connected to the solution bottle 910 through a pipeline, and the output port of the high-pressure liquid pump is connected to a three-way, leading out two branch pipes, each of which is provided with a stop valve 911. The branch pipes are each connected to the liquid inlet of an autoclave 902. The two autoclaves 902 are provided with a number of chemical sensor electrodes 901, which are all connected to the data collecto...

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Abstract

The detecting and calibrating experiment platform for high temperature and high pressure solution chemical sensor includes high pressure kettle with inserting holes for 2-5 similar or dissimilar chemical sensor electrodes to be inserted in, and sealing structures between chemical sensor and the kettle and between the kettle body and the kettle cover. The high temperature and high pressure kettle includes also fluid inlet connected to medium input system, fluid outlet connected to medium output system, and electrochemical parameter measuring system connected to the chemical sensors. The present invention has reliable and safe sealing structure, and may be used in in-situ measurement with and detection and calibration of chemical sensor at high temperature and high pressure conditions of 0-500 deg.c and 0.1-60 MPa.

Description

Technical field [0001] The invention relates to a detection and calibration experimental device platform for detecting and calibrating chemical sensors, in particular to a high-temperature and high-pressure chemical sensor detection and calibration experimental device platform for in-situ detection of solution electrochemical parameters under high-temperature and high-pressure conditions. Background technique [0002] At present, the electrochemical parameters of the solution under high temperature and high pressure, such as the pH value of the solution, the H in the solution 2 Or H 2 The chemical sensor used for parameters such as the content of S is a solid sensor. It must be tested and calibrated after the production is completed. [0003] At present, in order to develop and research deep-sea (mineral-containing hydrothermal fluid) resources, it is necessary to conduct real-time detection of various parameters on the seabed of the deep sea. In order to meet this demand, as wel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/416
Inventor 张荣华胡书敏张雪彤
Owner 张荣华
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