Sensor for measuring hydrogen content in water

Abstract

The invention relates to a sensor for measuring the hydrogen content in water. The sensor comprises a detection cavity, and a hydrogen permeation membrane, a reference motor shell, a reference electrode, a signal acquisition circuit, a working electrode, a glass tube and a counter electrode which are arranged in the detection cavity. The glass tube is located outside the working electrode, and the axis of the working electrode coincides with the axis of the glass tube. The counter electrode is located outside the glass tube, and the axis of the counter electrode coincides with the axis of the glass tube. The reference electrode is positioned on the opposite side of the working electrode, the glass tube and the counter electrode. The reference electrode shell is located outside the reference electrode, and the reference motor shell and the reference electrode coincide in axis. And the signal acquisition circuit is positioned below the reference motor shell, the reference electrode, the working electrode, the glass tube and the counter electrode. All detection devices are integrated in the detection cavity, so that the technical problem that online water quality detection cannot be realized by a dissolved hydrogen content detection method is solved.

Description

Technical Field

[0001] This application relates to the field of sensor technology, specifically to a sensor for measuring the hydrogen content in water. Background Technology

[0002] Against the backdrop of accelerated green industrialization, industries such as transportation, manufacturing, energy, and machinery production use and generate large amounts of hydrogen-containing water. This necessitates rapid and accurate monitoring of hydrogen content in the water to reflect water quality in real time, which is of great significance for water resource environmental monitoring and management, as well as wastewater treatment. Currently, common methods for detecting dissolved hydrogen content include gas chromatography, fluorescence quenching, chemical analysis, and electrochemical methods. While fluorescence quenching performs well in detecting trace amounts of dissolved hydrogen, offering advantages such as high measurement accuracy and strong anti-interference capabilities, its application is limited by factors such as the complex fabrication process of the sensor's fluorescent film, the high precision requirements of the optical system, and its high cost. Gas chromatography is complex in operation and requires real-time monitoring, and its application scenarios are limited. Chemical analysis methods have low accuracy, a large error range, and are cumbersome, time-consuming, and reagent-intensive. Summary of the Invention

[0003] In view of this, this application provides a sensor for measuring the hydrogen content in water, which solves the technical problem that no method for detecting hydrogen content can achieve online water quality detection by integrating all detection devices into the detection chamber.

[0004] This application provides a sensor for measuring the hydrogen content in water. The sensor includes a detection chamber and, within the detection chamber, a hydrogen-permeable membrane, a reference motor housing, a reference electrode, a signal acquisition circuit, a working electrode, a glass tube, and a counter electrode. The glass tube is located outside the working electrode, with the axis of the working electrode coinciding with the axis of the glass tube. The counter electrode is also located outside the glass tube, with its axis coinciding with the axis of the glass tube. The reference electrode is located opposite the working electrode, glass tube, and counter electrode. The reference electrode housing is located outside the reference electrode, with the axis of the reference motor housing coinciding with the axis of the reference electrode. The signal acquisition circuit is located below the reference motor housing, reference electrode, working electrode, glass tube, and counter electrode. When the liquid to be tested enters the detection chamber, it comes into contact with the working electrode and counter electrode, generating the data to be detected. The reference liquid inside the reference electrode housing comes into contact with the reference electrode, generating standard data. The generated standard data is compared with the data to be detected to determine the dissolved hydrogen content in the liquid.

[0005] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes a fixing plate. The reference electrode is fixed by the fixing plate.

[0006] In one specific embodiment of this application, the sensor for measuring hydrogen content in water further includes a small sleeve and a sealing base. The small sleeve is used to enclose the fixing plate, reference electrode, working electrode, and counter electrode, and the small sleeve coincides with the axis of the fixing plate. The sealing base is located below the small sleeve, and the sealing base coincides with the center of the small sleeve.

[0007] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes a sponge. A hydrogen-permeable membrane is placed at the top of a small sleeve, with the membrane's axis coinciding with the sleeve's axis; the sponge is located below the hydrogen-permeable membrane and is in contact with the reference electrode, working electrode, glass tube, and counter electrode, with the sponge's axis coinciding with the membrane's axis.

[0008] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes a rubber washer and / or a button gasket. The rubber washer is placed in a groove at the top of the small sleeve. The button gasket is located on the small sleeve, and the four water inlet holes at the center of the button gasket coincide with the four water inlet holes of the small sleeve.

[0009] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes a small sleeve top cover. The small sleeve top cover is located above the small sleeve, and the axis of the small sleeve top cover coincides with that of the small sleeve.

[0010] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes a base. The base is located below the sealed base, enclosing the sealed base, and the base and the sealed base have their axes coincident.

[0011] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes a large sleeve. The large sleeve is located outside the small sleeve and contacts the base, with the base and the large sleeve's axes coinciding.

[0012] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes a large sleeve cap. The large sleeve cap is adjacent to and above the large sleeve and is fixed by a hexagonal structure.

[0013] In one specific embodiment of this application, the sensor for measuring the hydrogen content in water further includes an end cap. The end cap is pressed against the large sleeve cap by a hexagonal structure.

[0014] The beneficial effects of the technical solution of this application are as follows: The sensor of this application embodiment can realize online monitoring of hydrogen content in water without pollution, and has high stability and sensitivity during continuous operation, low power consumption, and is easy to promote and use; The sensor of this application embodiment adopts a novel design, has a structural anti-fouling function, the detector is not easily contaminated, and realizes high-pressure water hydrogen content monitoring; The sensor of this application embodiment integrates all detection devices in the detection chamber, and has the characteristics of high pressure resistance, wide range, real-time detection and high stability, and can quickly detect hydrogen content in water under high pressure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 The diagram shown is a schematic diagram of the internal structure of a sensor for measuring the hydrogen content in water according to an embodiment of this application.

[0017] Figure 2 The diagram shown is a schematic representation of the housing of a sensor for measuring the hydrogen content in water according to an embodiment of this application.

[0018] Figure 3 The diagram shown is a schematic of the small sleeve of the sensor for measuring the hydrogen content in water according to an embodiment of this application.

[0019] Figure 4 The diagram shown is a schematic representation of the relationship between the small sleeve and the button gasket in an embodiment of this application.

[0020] Figure 5 The diagram shown is a schematic representation of the relationship between the small sleeve and the rubber gasket in an embodiment of this application.

[0021] Figure 6 The diagram shown is a schematic diagram of the detection cavity and its internal structure according to an embodiment of this application.

[0022] The attached diagram is labeled as follows: 1. End cap; 2. Large sleeve cap; 3. Large sleeve; 4. Base; 5. Small sleeve top cap; 6. Sealing base; 7. Button gasket; 8. Small sleeve; 9. Rubber gasket; 10. Hydrogen permeable membrane; 11. Sponge; 12. Reference electrode shell; 13. Detection chamber; 14. Fixing plate; 15. Signal acquisition circuit; 16. Reference electrode; 17. Working electrode; 18. Outer glass tube of working electrode; 19. Counter electrode. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] like Figures 1 to 6 As shown, a sensor for measuring hydrogen content in water includes a detection chamber 13 and a hydrogen-permeable membrane 10, a reference motor housing 12, a signal acquisition circuit 15, a reference electrode 16, a working electrode 17, a glass tube 18, and a counter electrode 19 disposed within the detection chamber 13. The glass tube 18 is located outside the working electrode 17, and the axis of the working electrode 17 coincides with the axis of the glass tube 18. The counter electrode 19 is located outside the glass tube 18, and the axis of the counter electrode 19 coincides with the axis of the glass tube 18. The reference electrode 16 is located on the opposite side of the working electrode 17, the glass tube 18, and the counter electrode 19. The reference electrode housing 12 is located outside the reference electrode 16, and the axis of the reference motor housing 12 coincides with the axis of the reference electrode 16. The signal acquisition circuit 15 is located below the reference motor housing 12, the reference electrode 16, the working electrode 17, the glass tube 18, and the counter electrode 19. After the liquid to be tested enters the detection chamber 13, it comes into contact with the working electrode 17 and the counter electrode 19 to generate the data to be tested; the reference liquid in the reference motor housing 12 comes into contact with the reference electrode 16 to generate standard data. The content of dissolved hydrogen in the liquid is detected by comparing the generated standard data with the data to be tested.

[0025] It should be noted that the sensor used to measure the hydrogen content in water is a three-electrode dissolved hydrogen sensor, which can also be called a zero-point calibration-free three-electrode electrochemical dissolved hydrogen sensor, electrochemical dissolved hydrogen sensor, etc.

[0026] The sensor in this embodiment can monitor the hydrogen content in water online without pollution. It has high stability and sensitivity during continuous operation, low power consumption, and is easy to promote and use. The sensor in this embodiment adopts a novel design with anti-fouling function, making the detector less prone to contamination and enabling high-pressure monitoring of hydrogen content in water. The sensor in this embodiment integrates all detection devices in the detection chamber, and has the characteristics of high pressure resistance, wide range, real-time detection capability, and high stability. It can quickly detect the hydrogen content in water under high pressure.

[0027] In at least one embodiment of this application, reference is made to Figure 1 and Figure 6 The sensor for measuring the hydrogen content in water also includes a mounting plate 14. The reference electrode 16 is fixed by the mounting plate 14.

[0028] In some embodiments, the signal acquisition circuit 15 is located below the fixing plate 14, with the axis of the signal acquisition circuit 15 and the fixing plate 14 coinciding, and is fixed by two small baffles on both sides of the fixing plate 14. The signal acquisition circuit 15 mainly performs signal conditioning, amplification, and AD conversion functions for the electrode signals.

[0029] In at least one embodiment of this application, reference is made to Figure 1 and Figure 4 The sensor for measuring hydrogen content in water also includes a small sleeve 8 and a sealing base 6. The small sleeve 8 is used to enclose the fixing plate 14, the reference electrode 16, the working electrode 17, and the counter electrode 19, and the small sleeve 8 is aligned with the axis of the fixing plate 14. The sealing base 6 is located below the small sleeve 8, and the sealing base 6 is aligned with the axis of the small sleeve 8. Thus, the sealing base 6 and the small sleeve 8 form a detection chamber 13.

[0030] In some embodiments, the hydrogen permeable membrane 10 is made of polytetrafluoroethylene (PTFE). PTFE hydrogen permeable membranes have good hydrogen permeability.

[0031] In at least one embodiment of this application, reference is made to Figure 1 and Figure 6 The sensor for measuring hydrogen content in water also includes a sponge 11. A hydrogen-permeable membrane 10 is placed at the top of a small sleeve 8, with the membrane 10 and the sleeve 8 aligned on their axes. The sponge 11 is located below the membrane 10 and is in contact with the reference electrode 16, the working electrode 17, the glass tube 18, and the counter electrode 19; the sponge 11 is also aligned on its axis. The sponge 11 is used to absorb and filter impurities and water vapor.

[0032] In at least one embodiment of this application, reference is made to Figure 1 and Figure 5 The sensor for measuring hydrogen content in water also includes a rubber gasket 9. The rubber gasket 9 is placed in a groove at the top of the small sleeve 8. In this way, the rubber gasket 9 can prevent gas leakage and play a sealing role.

[0033] In at least one embodiment of this application, reference is made to Figure 1 and Figure 4 The sensor for measuring hydrogen content in water also includes a button pad 7. The button pad 7 is located on the small sleeve 8, and its four central water inlet holes coincide with the four water inlet holes of the small sleeve 8. Thus, the button pad 7 serves to reinforce the small sleeve 8.

[0034] In at least one embodiment of this application, reference is made to Figure 1 and Figure 3 The sensor for measuring hydrogen content in water also includes a small sleeve top cover 5. The small sleeve top cover 5 is located above the small sleeve 8, and the axis of the small sleeve top cover 5 coincides with that of the small sleeve 8. Thus, the small sleeve top cover 5 is used to press the rubber ring 9, thereby sealing and fixing the electrode.

[0035] In at least one embodiment of this application, reference is made to Figure 1 and Figure 2 The sensor for measuring hydrogen content in water also includes a base 4. The base 4 is located below the sealed base 6, enclosing the sealed base 6, with the axes of the base 4 and the sealed base 6 coinciding. Thus, the base 4 serves to support and fix the sensor body.

[0036] In at least one embodiment of this application, reference is made to Figure 1 and Figure 2 The sensor for measuring hydrogen content in water also includes a large sleeve 3. The large sleeve 3 is located outside the small sleeve 8 and contacts the base 4, with the base 4 and the large sleeve 3 having the same axis. Thus, the large sleeve 3 serves as the sensor housing, protecting the internal components of the sensor.

[0037] In at least one embodiment of this application, reference is made to Figure 1 and Figure 2 The sensor for measuring hydrogen content in water also includes a large sleeve cap 2. The large sleeve cap 2 is adjacent to and above the large sleeve 3 and is fixed by a hexagonal structure. In this way, the large sleeve cap 2 seals the internal components of the sensor.

[0038] In at least one embodiment of this application, reference is made to Figure 1 and Figure 2 The sensor for measuring hydrogen content in water also includes an end cap 1. The end cap 1 is pressed against the large sleeve cap 2 via a hexagonal structure. Thus, the end cap 1 serves to protect the cap, fix the signal line interface, and seal the sensor.

[0039] It should be noted that the combination of the technical features in the embodiments of this application is not limited to the combination methods described in the embodiments of this application or the combination methods described in specific embodiments. All technical features described in this application can be freely combined or combined in any way, unless they contradict each other.

[0040] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the term "comprising" only indicates that it includes the explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sensor for measuring the hydrogen content in water, characterized in that The device comprises a detection cavity, a hydrogen permeable membrane, a reference electrode, a signal acquisition circuit, a working electrode, a glass tube and a counter electrode arranged in the detection cavity, wherein the glass tube is located outside the working electrode, the axis of the working electrode and the axis of the glass tube coincide, the counter electrode is located outside the glass tube, the axis of the counter electrode and the axis of the glass tube coincide, the reference electrode is located on the opposite side of the working electrode, the glass tube and the counter electrode, the reference electrode shell is located outside the reference electrode, the reference electrode shell and the axis of the reference electrode coincide, and the signal acquisition circuit is located below the reference electrode shell, the reference electrode, the working electrode, the glass tube and the counter electrode; after the liquid to be detected enters the detection cavity and contacts the working electrode and the counter electrode, the data to be detected is generated; the reference liquid in the reference electrode shell contacts the reference electrode to generate standard data, and the content of dissolved hydrogen in the liquid is detected by comparing the generated standard data with the data to be detected.

2. The sensor for measuring the amount of hydrogen in water according to claim 1, wherein The device further comprises a fixing plate, wherein the reference electrode is fixed by the fixing plate.

3. The sensor for measuring the amount of hydrogen in water according to claim 2, wherein The device further comprises a small sleeve and a sealing base, wherein the small sleeve is used to wrap the fixing plate, the reference electrode, the working electrode and the counter electrode, the axis of the small sleeve coincides with the axis of the fixing plate, the sealing base is located below the small sleeve, and the axis of the sealing base coincides with the axis of the small sleeve.

4. The sensor for measuring the amount of hydrogen in water according to claim 3, wherein The device further comprises a sponge, wherein the hydrogen permeable membrane is placed at the top end of the small sleeve, the axis of the hydrogen permeable membrane coincides with the axis of the small sleeve; the sponge is located below the hydrogen permeable membrane and contacts the reference electrode, the working electrode, the glass tube and the counter electrode, and the axis of the sponge coincides with the axis of the hydrogen permeable membrane.

5. The sensor for measuring the amount of hydrogen in water according to claim 3, wherein The device further comprises a rubber gasket and / or a button gasket, wherein the rubber gasket is placed in the groove at the top end of the small sleeve, and the button gasket is located on the small sleeve, the four water inlet holes in the center of the button gasket coincide with the four water inlet holes of the small sleeve one by one.

6. The sensor for measuring the amount of hydrogen in water according to claim 3, wherein The device further comprises a small sleeve top cover, wherein the small sleeve top cover is located above the small sleeve, and the axis of the small sleeve top cover coincides with the axis of the small sleeve.

7. The sensor for measuring the amount of hydrogen in water according to claim 3, wherein The device further comprises a base, wherein the base is located below the sealing base, the sealing base is wrapped by the base, and the axis of the base coincides with the axis of the sealing base.

8. The sensor for measuring the amount of hydrogen in water according to any one of claims 3 to 7, characterized by, The device further comprises a large sleeve, wherein the large sleeve is located outside the small sleeve and contacts the base, the axis of the base coincides with the axis of the large sleeve.

9. The sensor for measuring the amount of hydrogen in water according to claim 8, wherein The device further comprises a large sleeve cap, wherein the large sleeve cap is located immediately above the large sleeve and is fixed by a hexagonal structure.

10. The sensor for measuring the amount of hydrogen in water according to claim 9, wherein The device further comprises an end cap, which is pressed onto the large sleeve cap by a hexagonal structure.

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