Portable trace oxygen analyzer measuring device

Abstract

The utility model discloses a portable trace oxygen analyzer measuring device, and belongs to the technical field of detection devices. Comprising a sample introduction pool used for collecting and treating a to-be-detected sample; the bubble eliminating pool is used for eliminating bubbles in the sample to be detected; the measuring cell is used for measuring the oxygen content of the to-be-measured sample; and the pipeline assembly is used for connecting the sample introduction pool, the bubble elimination pool and the measurement pool. The trace oxygen content in water can be rapidly and accurately detected, and the influence of impurities and bubbles is avoided.

Description

Technical Field

[0001] This utility model relates to a detection device, and more particularly to a portable trace oxygen analyzer measuring device. Background Technology

[0002] A trace oxygen analyzer is a high-precision instrument used to accurately detect extremely low concentrations of oxygen (typically in the ppb to ppm range) in gases or liquids, and it has important applications in industry, scientific research, environmental protection and other fields.

[0003] During the testing process, the purity of the sample (whether it contains impurities), the sealing of the pipeline system, and the content of air bubbles in the sample directly affect the accuracy of the test results. Therefore, there is an urgent need for a device that can quickly and accurately detect trace oxygen content. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention aims to provide an oxygen analyzer measuring device that is fast, accurate, and can effectively avoid the influence of bubbles and has good sealing performance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Portable trace oxygen analyzer measuring device, including

[0007] The sample inlet cell is used to collect and process the sample to be tested;

[0008] A bubble elimination chamber is used to eliminate air bubbles in the sample to be tested.

[0009] The measuring cell is used to measure the oxygen content of the sample to be tested.

[0010] Piping assembly for connecting the sample injection cell, the bubble elimination cell, and the measurement cell.

[0011] Preferably, the inlet of the sample inlet is equipped with a filter assembly and a water pump.

[0012] Preferably, the sample injection chamber is equipped with a temperature control component.

[0013] Preferably, the bubble elimination tank is equipped with a miniature centrifugal impeller, and the miniature centrifugal impeller is equipped with an ultrasonic defoaming component.

[0014] Preferably, the bubble elimination tank is provided with a negative pressure exhaust port, which is connected to the exhaust chamber, and a hydrophobic membrane component is provided at the negative pressure exhaust port.

[0015] Preferably, the measuring pool is equipped with a sensor assembly.

[0016] Preferably, the sensor assembly includes, but is not limited to, an electrochemical oxygen sensor.

[0017] Preferably, the piping assembly is made of polytetrafluoroethylene (PTFE).

[0018] Preferably, the pipeline assembly is equipped with a flow meter, and the pipeline assembly connecting two adjacent pools is equipped with a quick-release connector.

[0019] This utility model's trace oxygen analyzer detection device measures oxygen content through a sequentially connected sample injection cell, bubble elimination cell, and measuring cell. The sample injection cell filters impurities from the sample, and a temperature control component maintains a constant sample temperature to eliminate the influence of temperature differences. The bubble elimination cell eliminates bubbles in the sample using a dual defoaming combination of centrifugal blades and an ultrasonic defoaming component, ensuring thorough bubble elimination and improving the accuracy of the detection results. The entire piping system is made of highly corrosion-resistant, low-gas-permeability polytetrafluoroethylene (PTFE) material, improving sealing. The designed quick-release connectors allow for rapid installation and disassembly of the piping, enhancing portability. Attached Figure Description

[0020] Figure 1 This is the overall flow chart of the device.

[0021] In the diagram: 1. Sample inlet cell; 11. Filter assembly; 12. Temperature control assembly; 2. Bubble elimination cell; 21. Miniature centrifugal impeller; 22. Ultrasonic defoaming assembly; 23. Negative pressure exhaust port; 24. Hydrophobic membrane assembly; 3. Measurement cell; 31. Sensor assembly; 4. Piping assembly; 5. Exhaust chamber; 6. Flow meter; 7. Quick-release connector; 8. Priming pump. Detailed Implementation

[0022] The structure and principle of this utility model will now be fully explained with reference to specific embodiments, so that those skilled in the art can fully understand and implement it.

[0023] like Figure 1 As shown, the present invention discloses a portable trace oxygen analyzer measuring device, comprising a sample inlet 1 for collecting and processing the sample to be tested; the inlet of the sample inlet 1 is provided with a filter assembly 11 and a water pump 8, and the sample inlet 1 is provided with a temperature control assembly 12. Impurities in the sample to be tested are filtered through the sample inlet 1. The filter assembly 11 uses a 20μm filter screen, and the temperature is controlled at a suitable temperature by the temperature control assembly 12 to facilitate the precipitation of bubbles; the water pump 8 can be a micro peristaltic pump, controlled at a stable flow rate to avoid the generation of bubbles from high-speed flow.

[0024] The bubble elimination tank 2 is used to eliminate bubbles in the sample to be tested. The bubble elimination tank 2 is equipped with a micro centrifugal impeller 21, and the micro centrifugal impeller 21 is equipped with an ultrasonic defoaming component 22. The bubbles are completely separated by the dual defoaming of the micro centrifugal impeller 21 and the ultrasonic defoaming component 22. The bubble elimination tank 2 is equipped with a negative pressure exhaust port 23, which is connected to the exhaust chamber 5. A hydrophobic membrane component 24 is provided at the negative pressure exhaust port 23 to isolate the liquid and discharge the gas.

[0025] The measuring cell 3 is used to measure the oxygen content of the sample to be tested; the measuring cell 3 is equipped with a sensor assembly 31, which includes, but is not limited to, an electrochemical oxygen sensor.

[0026] Piping assembly 4 is used to connect the sample injection cell 1, the bubble elimination cell 2, and the measurement cell 3; the piping assembly 4 is made of polytetrafluoroethylene material to ensure the system's airtightness.

[0027] Preferably, the pipeline assembly 4 is equipped with a flow meter 6, and the pipeline assembly 4 connecting two adjacent pools is equipped with a quick-release connector 7.

[0028] This embodiment can greatly improve the accuracy of the detection results by filtering and defoaming while detecting oxygen content.

[0029] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the technical principles and scope of this utility model. Therefore, any combination, modification, or substitution made to the disclosed technical features of this utility model based on its technical essence, without departing from the principles or solution of this utility model, should fall within the protection scope of this utility model.

Claims

1. A portable trace oxygen analyzer measuring device, characterized in that, include Sample inlet cell (1) is used to collect and process the sample to be tested; Bubble elimination chamber (2) is used to eliminate bubbles in the sample to be tested; Measuring cell (3) is used to measure the oxygen content of the sample to be tested; Piping assembly (4) for connecting the sample injection cell (1), the bubble elimination cell (2), and the measurement cell (3).

2. The portable trace oxygen analyzer measuring device as described in claim 1, characterized in that, The inlet of the sample inlet (1) is equipped with a filter assembly (11) and a water pump (8).

3. The portable trace oxygen analyzer measuring device as described in claim 2, characterized in that, The sample inlet (1) is equipped with a temperature control component (12).

4. The portable trace oxygen analyzer measuring device as described in claim 1, characterized in that, The bubble elimination tank (2) is equipped with a micro centrifugal impeller (21), and the micro centrifugal impeller (21) is equipped with an ultrasonic defoaming component (22).

5. The portable trace oxygen analyzer measuring device as described in claim 4, characterized in that, The bubble elimination tank (2) is provided with a negative pressure exhaust port (23), which is connected to the exhaust chamber (5). A hydrophobic membrane assembly (24) is provided at the negative pressure exhaust port (23).

6. The portable trace oxygen analyzer measuring device as described in claim 1, characterized in that, The measuring pool (3) is equipped with a sensor assembly (31).

7. The portable trace oxygen analyzer measuring device as described in claim 6, characterized in that, The sensor assembly (31) includes, but is not limited to, an electrochemical oxygen sensor.

8. The portable trace oxygen analyzer measuring device according to any one of claims 1 to 7, characterized in that, The pipeline assembly (4) is made of polytetrafluoroethylene.

9. The portable trace oxygen analyzer measuring device as described in claim 8, characterized in that, The pipeline assembly (4) is equipped with a flow meter (6), and the pipeline assembly (4) connecting the two adjacent pools is equipped with a quick-release connector (7).

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