CN116380986A - A device for measuring hydrogen and resistivity in pure water - Google Patents

Abstract

The invention provides a device for measuring hydrogen and resistivity in pure water. The contacts of the hydrogen sensor and the temperature sensor are respectively placed in the pure water of the pure water cooling equipment to detect the hydrogen information and temperature information in the pure water; The sensor and the temperature sensor are connected to the processor through the analog signal input acquisition module, the analog signal conditioning amplifier module, and the A/D conversion module in turn, and the processor obtains hydrogen information and temperature information in pure water; the processor is connected to the host computer through the communication module, Transmit the obtained hydrogen information and temperature information in pure water to the host computer. The device realizes the effective monitoring of the pure water cooling equipment by detecting the hydrogen information and temperature information of the pure water cooling equipment, avoiding the damage to the power electronic equipment caused by the change of the conductivity of the water caused by the excessive hydrogen in the pure water, and improving the The safety and stability of pure water cooling equipment operation.

Description

A device for measuring hydrogen and resistivity in pure water

technical field

The invention relates to the technical field of pure water cooling, in particular to a device for measuring hydrogen and resistivity in pure water.

Background technique

Pure water cooling equipment and control systems for power electronic devices are supporting equipment for high-power power electronic devices. At present, the main application fields are concentrated in the fields of power transmission and distribution and new energy power generation.

1) The development trend of pure water cooling equipment and control system cooling objects with high power and high power density;

High-voltage transmission and high-power generators can significantly improve energy conversion efficiency and reduce energy consumption, which is in line with the development direction of energy conservation and environmental protection. In recent years, various power generation and transmission and distribution companies have significantly increased their new investment in high-voltage and ultra-high voltage power grids and high-power generating units (such as large-scale wind power, photovoltaic power generation, etc.), and increased investment in low-voltage and low-power equipment. Replacement. With the gradual increase of transmission and distribution voltage and generator power and higher power density, higher requirements are placed on the heat dissipation performance of devices. Traditional air cooling technology can no longer meet the needs of high-power generation and transmission and distribution equipment. The advantages of water cooling technology are obvious. The development trend of cooling objects with high power and high power density provides an opportunity for the further development of the pure water cooling equipment industry.

2) The application field and applicability of pure water cooling equipment continue to expand.

Because pure water cooling equipment has excellent heat dissipation performance and high reliability, and has no pollution to the environment, the water-cooled and air-insulated structure is used as a standard design for high-voltage and high-power valves, and is widely used in various high-power power transmission and use systems. The rapid development of power electronics technology and the widespread use of high-power power electronics devices provide a broad market application field for pure water cooling equipment. At present, pure water cooling equipment has gradually been widely used in the cooling of high-power power electronic devices in the fields of flexible power transmission and distribution, high-voltage and ultra-high The equipment requirements, power size, working environment, etc. of the application field are targeted for continuous R&D, design and manufacture to improve the applicability of the cooling equipment.

3) The technical level and technical characteristics of the industry.

The current manufacturing technology of pure water cooling equipment for power electronic devices can be based on secondary heat exchange technology, sealed voltage stabilization technology and intelligent control technology. The future research and development direction of pure water cooling technology will be on the basis of expanding the application range of products, and constantly seeking more energy-saving, high-efficiency, low-cost design solutions and advanced processing technology will be the main direction of the industry's efforts. At the same time, for cooling media Various research work has been carried out on the purification ability of the device and the sealing, thermal conductivity, and insulation of the device.

Pure water cooling technology continues to develop rapidly. Under the fierce market competition, in order to ensure the market share of products and expand the application range of products, we must continuously improve system integration design technology, water purification technology and optimize energy-saving, high-efficiency, and low-cost design solutions. , is still the trend of technological development in the pure water cooling equipment industry.

At present, it is necessary to monitor the hydrogen content of the pure water cooling equipment to ensure the normal operation of the pure water cooling equipment.

Among them, the electrical hydrogen sensor mainly utilizes the electrical characteristics of the material to have a certain functional relationship with the hydrogen concentration, and measures the hydrogen concentration by detecting the electrical physical quantity. According to different working principles, electrical hydrogen sensors are divided into resistive hydrogen sensors and non-resistive hydrogen sensors. The resistive hydrogen sensor is mainly a semiconductor metal oxide hydrogen sensor. When the semiconductor metal oxide absorbs hydrogen, the resistivity will increase significantly. The hydrogen concentration can be detected by detecting the change in resistance. Sputtering a layer of metal material nano-film with good selectivity to hydrogen, such as palladium, platinum, etc. Resistive hydrogen sensors have fast response and long service life, up to 10 years, but have poor selectivity to hydrogen and are easily interfered by other reducing gases, such as methane and carbon monoxide. The non-resistive hydrogen sensor mainly uses the material capacitance or potential barrier to form a certain functional relationship with the hydrogen concentration, and is divided into Schottky diode type and field effect tube type. The electrical hydrogen sensor has the advantages of simple structure, easy miniaturization, and easy integration. However, the temperature required for its work is high, which increases energy consumption, and it is easy to generate electric sparks when it works, so it is not suitable for the detection of hydrogen concentration in flammable and explosive places.

Optical hydrogen sensors mainly use the optical properties of gas. According to different working principles, they are mainly divided into the following categories: optical fiber hydrogen sensors, surface acoustic wave hydrogen sensors, and photoacoustic hydrogen sensors. The principle of the optical fiber hydrogen sensor is to use the structure of the optical fiber and the hydrogen-sensitive material to change the physical properties of the optical fiber after the hydrogen-sensitive material reacts with hydrogen, resulting in a change in the optical properties of the transmitted light in the optical fiber, which is measured by detecting the change in the corresponding physical quantity of the output light hydrogen concentration. The surface acoustic wave is a kind of sound wave that propagates along the surface of the elastic body, and its amplitude attenuates exponentially with the increase of the depth of the piezoelectric matrix material. The hydrogen sensor applying this principle is generally a surface acoustic wave oscillator. The basic principle of the photoacoustic gas sensor is based on the photoacoustic effect of gas, which has high sensitivity and fast response speed, but is greatly affected by the photoacoustic cell and temperature.

At present, electrochemical and electrical hydrogen sensors have a relatively high share. Various electrochemical hydrogen sensors have a wide operating temperature range, low power consumption, and high sensitivity, but their electrode life is limited, and they need to provide current or voltage to the sensor during operation, which is not suitable for flammable and explosive places. For Using it on high-voltage transmission and high-power generators will pose a safety hazard to its operation. In the optical hydrogen sensor, the surface acoustic wave mode and the photoacoustic mode detect the hydrogen concentration by measuring the frequency offset, which is greatly affected by environmental factors.

Contents of the invention

The invention provides a hydrogen and resistivity measuring device in pure water. On the basis of ensuring safe, stable and efficient cooling of the power electronic device, the device cannot bring hidden dangers to the safe and stable operation of the power electronic device.

The device includes: hydrogen sensor, temperature sensor, analog signal input acquisition module, analog signal conditioning and amplification module, A/D conversion module, processor and communication module;

The contacts of the hydrogen sensor and the temperature sensor are respectively placed in the pure water of the pure water cooling equipment to detect the hydrogen information and temperature information in the pure water;

The hydrogen sensor and the temperature sensor are connected to the processor sequentially through the analog signal input acquisition module, the analog signal conditioning amplification module, and the A/D conversion module, and the processor obtains hydrogen information and temperature information in pure water;

The processor is connected with the host computer through the communication module, and transmits the obtained hydrogen information and temperature information in the pure water to the host computer.

It should be further noted that the hydrogen sensor uses a palladium alloy sensor. The collection accuracy of the palladium alloy sensor is 25-5000ppm. When the palladium alloy sensor detects the presence of hydrogen in the pure water of the pure water cooling equipment, the H2 molecules are catalyzed into H atoms, which are adsorbed in the lattice of the Pd-Ni alloy, causing a change in resistance, and then the change in resistance is converted by the signal conditioning circuit into hydrogen concentration, so as to realize hydrogen measurement.

It should be further explained that the palladium alloy sensor uses Wheatstone bridge technology to design a hydrogen sensor with zero automatic calibration function, so that the hydrogen sensor does not need to be heated to a constant temperature for its operation.

It should be further explained that the communication module includes: RS485 unit and LORA unit.

It should be further noted that it also includes: a battery, a charging circuit and a charging interface; the battery is used to supply power to the electronic components inside the device; the charging terminal of the battery is connected to an external power source through the charging circuit and the charging interface.

It should be further noted that it also includes: a storage, the processor is connected to the storage, and the acquired hydrogen information and temperature information in the pure water are stored in the storage.

It should be further noted that it also includes: a display screen, which is connected to the processor and used to display hydrogen information and temperature information.

It should be further explained that it also includes: an operation button, the processor is connected to the operation button, and obtains parameter information and control instructions input by the user.

As can be seen from the above technical solutions, the present invention has the following advantages:

The hydrogen and resistivity measuring device in pure water provided by the present invention can monitor the pure water cooling equipment, that is, detect the hydrogen contained in the pure water of the pure water cooling equipment, and avoid or reduce the conductivity of water in the pure water cooling equipment It may bring hidden dangers to the safe operation of power electronic equipment. The hydrogen and resistivity measuring device in pure water can accurately measure the hydrogen contained in pure water and the resistivity of water, and evaluate the corresponding hazards, and carry out corresponding control intervention on pure water cooling equipment to ensure that the power electronic primary equipment can Safe and reliable operation.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is the schematic diagram of hydrogen and resistivity measurement device in pure water;

Figure 2 is a schematic diagram of specific thin film coating.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to FIG. 1 which is a schematic diagram of a device for measuring hydrogen gas and resistivity in pure water in a specific embodiment.

The hydrogen and resistivity measurement device in pure water includes: hydrogen sensor, temperature sensor, analog signal input acquisition module, analog signal conditioning and amplification module, A/D conversion module, processor and communication module;

The contacts of the hydrogen sensor and the temperature sensor are respectively placed in the pure water of the pure water cooling equipment to detect the hydrogen information and temperature information in the pure water;

Among them, the temperature sensor can be designed together with the hydrogen sensor according to actual design needs.

The hydrogen sensor and the temperature sensor are connected to the processor sequentially through the analog signal input acquisition module, the analog signal conditioning amplification module, and the A/D conversion module, and the processor obtains hydrogen information and temperature information in pure water;

The analog signal input acquisition module acquires accurate extraction of the output analog signals of the two sensors to minimize noise. The analog signal conditioning and amplification module effectively amplifies the signal while suppressing noise and improving the signal-to-noise ratio. The A/D conversion module performs digital conversion on the analog signal. The processor can be a CPU processor with high performance and low power consumption to efficiently process the collected data. The communication module supports two communication modes of RS485 and LORA.

The processor is connected with the host computer through the communication module, and transmits the obtained hydrogen information and temperature information in the pure water to the host computer. In this way, the measurement of hydrogen and resistivity in pure water is realized, and the monitoring of pure water cooling equipment is realized.

The device of the present invention also includes: operation buttons, a display screen, a storage device, a storage battery, a charging circuit and a charging interface. The storage battery is used to supply power to the internal electronic components of the device; the charging end of the storage battery is connected to an external power supply through a charging circuit and a charging interface. The processor is connected with the storage, and stores the acquired hydrogen information and temperature information in the pure water into the storage. The display screen is connected with the processor for displaying hydrogen information and temperature information. The processor is connected with the operation buttons to obtain parameter information and control instructions input by the user.

Further, as a refinement and expansion of the specific implementation of the above example, in order to fully illustrate the specific implementation process in this example, the hydrogen and resistivity measurement device in pure water adopts hydrogen sensing technology as a palladium alloy nano-film hydrogen sensor Technology, which uses hydrogen molecules to adsorb to the surface of the alloy film. Under the catalysis of the palladium alloy film, the hydrogen molecule is decomposed into two hydrogen atoms, and the hydrogen atoms diffuse into the palladium alloy lattice, causing lattice expansion and phase transformation, resulting in alloy The conductivity of the film changes, and according to this characteristic principle, the measurement of the concentration of hydrogen from 0.4 to 100% can be realized.

The state palladium alloy thin film sensor has the following advantages:

Hydrogen specificity, not affected by other gases in the mixed gas;

Large measurement range (25~5000ppm or 25~10000ppm);

Able to work continuously in high temperature and high humidity environment, temperature range -40℃～+85℃;

Small size, long service life of 10 years, saving investment costs.

The device is based on the principle of water resistivity measurement, where the resistivity of water refers to the resistance between the opposite sides of a cube with a side length of 1cm at a certain temperature, and the unit is Ω.cm or MΩ.cm. The conductivity is the resistivity The reciprocal of , the unit is S/cm (or μs/cm).

The resistivity (or conductivity) of water reflects the amount of salt in the water. It is an important indicator of the purity of water. The higher the purity of water, the lower the salt content, and the greater the resistivity of water (the smaller the conductivity ).

The resistivity (or conductivity) of water is affected by the purity of water, temperature and various factors in the measurement. The measurement of pure water resistivity (or conductivity) is to choose a dynamic measurement method, and use the method of temperature compensation to convert the measured value to Converted to resistivity at 25°C for easy measurement and comparison.

When measuring resistivity or conductivity, connect the conductivity electrode or measuring device to the water system. Pass water to drive away the air bubbles in the pipeline measuring device and conductivity cell, adjust the water flow rate (generally not less than 0.3m/s), And install a thermometer at the outlet of the conductivity cell, operate the conductivity meter (preheating, zeroing, calibration and measurement) according to the instrument manual, and record the water temperature and conductivity value after the instrument reading is stable. On-line measurement should use a conductivity meter with thermometer compensation The instrument can directly read the conductivity value at 25°C. The reciprocal of the conductivity is the resistivity value.

The present invention completes the simulation analysis of the ion generation mechanism in the pure water in the pipeline during the working process of the pure water cooling equipment, designs the hydrogen content monitoring sensor in the pure water, designs the pure water resistivity measurement device in the flow, and conducts test verification, including the following contents:

Simulation analysis of working process principle. Simulate the pure water in the pipeline of the pure water cooling equipment at high flow rate in the aluminum alloy pipeline, analyze the generation principle of ions and hydrogen in the pure water, so as to provide guidance for the design of the pure water cooling equipment and the setting of working conditions significance.

Through this device, the causes of various ions generated in pure water during the operation of pure water cooling equipment are simulated and the hazards are evaluated. At the same time, a set of testing equipment was developed to monitor the hydrogen content and resistivity in water during the operation of the pure water cooling device.

The upper computer of the present invention also performs modeling simulation analysis on the working process, researches and analyzes the generation mechanism of various ions in the pure water, and evaluates the harmfulness at the same time. A palladium alloy hydrogen smart sensor that can meet the needs of hydrogen monitoring in pure water meets the design requirements of sensor miniaturization, low power consumption, and high reliability.

The device checks the overall performance of the hydrogen sensor item by item. Including unit performance testing of hydrogen in oil within the concentration range of 25-5000ppm, internal pressure within the range of 0-600kPA, water temperature within the range of 0-50°C, sensor extreme environment tolerance performance testing, sensor electromagnetic compatibility performance testing, sensor structure The installation and anti-vibration performance testing consist of 4 parts, and key characteristics such as sensor sensitivity, accuracy, linearity, response time, power consumption, accuracy at extreme low temperatures, and electromagnetic compatibility are obtained.

The device of the invention detects the performance of the detection instrument for resistivity measurement in pure water item by item. Including the measurement accuracy of underwater detection instruments with different water temperatures, different flow rates, and different conductivity, the extreme environmental tolerance performance test of the instrument, the electromagnetic compatibility performance test of the instrument, the installation of the instrument structure and the anti-vibration performance test, a total of 4 parts, to obtain the sensitivity of the sensor , accuracy, linearity, response time, power consumption, accuracy at extreme low temperatures, electromagnetic compatibility and other key features.

The device of the present invention is a palladium alloy hydrogen intelligent sensor that can meet the demand for hydrogen monitoring in pure water, and meets the design requirements of miniaturization, low power consumption, and high reliability of the sensor. It can be used as a detection instrument for resistivity measurement in pure water, and can effectively measure the resistivity of pure water in flow. The overall device is tested for key features such as sensor sensitivity, accuracy, linearity, response time, power consumption, accuracy at extreme low temperatures, electromagnetic compatibility, and installation reliability. And carry out on-site installation verification. The invention provides on-line monitoring means for the reliable operation of pure water cooling equipment, ensures the reliability of external power transmission, intelligentizes electrical equipment, improves the production technology of electric power enterprises, improves economic benefits, and guides the construction and transformation of new electric power systems.

In an exemplary embodiment, the detailed technical plan of the hydrogen and resistivity measurement method research and sensor development project in pure water cooling equipment is as follows:

Monitoring principle analysis

Hydrogen monitoring uses a palladium alloy hydrogen sensor. Compared with traditional hydrogen sensor technology, it is difficult to achieve high precision and high sensitivity analysis requirements. Hydrogen sensitive materials are easily affected by factors such as temperature, humidity, and gas flow rate. Based on palladium alloy sensor technology, less oil The equipment on-line monitoring device uses a new type of hydrogen sensing technology - solid-state palladium alloy film sensing technology. The solid-state palladium alloy film sensor is made of a new type of sensitive film made of Pd-Ni alloy and other materials, based on the specificity of palladium to hydrogen. Based on the principle of catalytic catalysis, when detecting the presence of hydrogen in the casing oil, H2 molecules are catalyzed into H atoms, adsorbed in the lattice of Pd-Ni alloy, causing resistance changes, and then the change in resistance is converted into hydrogen through the signal conditioning circuit Concentration, so as to realize the hydrogen measurement. At the same time, the sensor chip integrates a heater and a temperature sensor, both of which can ensure a constant operating temperature of the chip, reduce the impact of ambient temperature or gas temperature fluctuations, and air flow velocity, and improve the measurement accuracy of the sensor.

-H2 is adsorbed on the surface of Pd alloy film and decomposed into H atoms under the catalysis of Pd.

The diffusion of -H atoms "dissolves" in the Pd alloy lattice, resulting in a change in the resistivity of the Pd bulk.

-Resistance change can be analyzed into hydrogen concentration through peripheral circuit.

As shown in Figure 2, the hydrogen sensor of the H2 acquisition unit adopts a specific thin film coating. The main functions of the specific coating are as follows: inorganic composite film; no cross-effect of CO/CH4/CO2; can work with or without O2; can work in H2S, wet Cl2 corrosion environment; H2 sensor has high stability and high repeatability , fast response time.

In the present invention, the hydrogen sensor adopts the palladium alloy sensor, and the sensor is connected with the sensor acquisition board on the FPC cable. The acquisition accuracy of the palladium alloy hydrogen sensor is 25-5000ppm. Acquisition accuracy ±20%.

Conductivity of the device - at a specific temperature, the reciprocal of the resistance (expressed in ohms) measured between two parallel opposing surfaces of a 1cm3 (cube, translator's note) aqueous solution.

NOTE 1—The unit of conductivity is Siemens/cm (S/cm), which is numerically equivalent to the previously used unit mho/cm. When the measured resistance Rx of the battery is expressed in ohms (Ω), the conductance is 1/Rx, which is proportional to the cross-sectional area A (cm2) and inversely proportional to the length L (cm), as follows:

1/Rx＝K·A/L

When measuring the conductance between two parallel opposite surfaces of a 1cm3 conductance cell, the obtained K is called the conductance. At a specific temperature (usually 25°C), the value of conductivity is expressed in microSiemens/centimeter (μS/cm) or S/cm.

Resistivity——At a specific temperature, the resistance (expressed in Ω) measured between two parallel opposite surfaces of a 1cm3 (cube, translator's note) aqueous solution.

NOTE 2—The unit of resistivity is ohm·centimeter (Ω·cm). When the measured resistance Rx of the battery is expressed in Ω, Rx is proportional to the length L (cm) and inversely proportional to the cross-sectional area A (cm2), as follows:

Rx＝R·L/A

When measuring the resistance between two parallel opposite surfaces in a 1cm3 conductivity cell, the obtained R is called the resistivity. At a specific temperature (usually 25°C), the resistivity value is expressed in Ω·cm or megaohm·cm (mΩ·cm).

Exemplarily speaking, the pure water resistivity measuring device is mainly composed of a Wheatstone bridge resistance measuring circuit, a conductivity cell, and a power supply.

The conductivity of water and its solution is largely dependent on temperature, and the conductivity and resistivity tests are usually performed at 25°C. The coefficients vary depending on the nature, composition and concentration of the dissolved electrolyte. For water samples with conductivity ≤5 μS/cm, it is important to separate their components, which will increase the temperature coefficient from approximately 2%/°C at 5 μS/cm to 5%/°C at 0.055 μS/cm. To avoid errors, keep the temperature at 25 ± 0.1°C; if this cannot be done, the temperature coefficient needs to be determined and corrected.

For this reason, it is necessary to measure the conductivity of a series of samples at different temperatures within a certain temperature range. Where automatic temperature correction is used, the algorithm for temperature correction needs to be selected and preferably simulates the sample composition for testing. In high-purity water with conductivity ≤5μS/cm, the change of coefficient can be automatically determined.

The palladium alloy hydrogen sensor chip of the present invention adopts Wheatstone bridge technology to design a hydrogen sensor with a zero-point automatic calibration function, so that the hydrogen sensor does not need to be heated to a constant temperature to reduce power consumption of the sensor.

The invention can detect and summarize the hydrogen information and temperature information, facilitate inspection and monitoring by detection personnel and monitoring personnel, and effectively improve the pure water monitoring efficiency of the pure water cooling equipment. It can also efficiently collect, store, and process pure water hydrogen information and temperature information of pure water cooling equipment, and use multidimensional space to describe the entire processing process. Timely detection of potential safety hazards of pure water cooling equipment and early warning, in order to improve the management level and efficiency of the power grid, control the risk of power grid operation, so as to realize the timeliness and scientificity of power grid operation supervision, management and control.

The units and algorithm steps of each example described in the embodiments disclosed in the hydrogen in pure water and resistivity measuring device provided by the present invention can be realized by electronic hardware, computer software or a combination of the two, in order to clearly illustrate the hardware and Interchangeability of software, the composition and steps of each example have been generally described in terms of functions in the above description. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Block Diagram of Hydrogen and Resistivity Measurement Apparatus in Pure Water Architecture, functionality and operation of possible implementations of apparatuses, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or portion of code that contains one or more logical functions for implementing specified executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. As an example, two blocks shown in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified functions or operations , or may be implemented by a combination of dedicated hardware and computer instructions.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.

In the device for measuring hydrogen gas and resistivity in pure water of the present invention, the computer program codes for performing the operations of the present disclosure can be written in one or more programming languages or a combination thereof, and the above-mentioned programming languages include but are not limited to Object-oriented programming languages—such as Java, Smalltalk, C++, and also conventional procedural programming languages—such as the "C" language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or power server. In cases involving a remote computer, the remote computer can be connected to the user computer via any kind of network, including a local area network (LAN) or a wide area network (WAN), or, alternatively, can be connected to an external computer (using, for example, an Internet service Provider via Internet connection).

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A device for measuring hydrogen and resistivity in pure water, comprising: the device comprises a hydrogen sensor, a temperature sensor, an analog signal input acquisition module, an analog signal conditioning and amplifying module, an A/D conversion module, a processor and a communication module;

the contact of the hydrogen sensor and the contact of the temperature sensor are respectively arranged in pure water of the pure water cooling device, and hydrogen information and temperature information in the pure water are detected;

the hydrogen sensor and the temperature sensor are connected with the processor sequentially through the analog signal input acquisition module, the analog signal conditioning and amplifying module and the A/D conversion module, and the processor acquires hydrogen information and temperature information in the pure water;

the processor is connected with the upper computer through the communication module, and transmits the acquired hydrogen information and temperature information in the pure water to the upper computer.

2. The apparatus for measuring hydrogen and resistivity in pure water according to claim 1, wherein,

the hydrogen sensor adopts a palladium alloy sensor.

3. The apparatus for measuring hydrogen and resistivity in pure water according to claim 2, wherein,

the acquisition precision of the palladium alloy sensor is 25-5000 ppm.

4. The apparatus for measuring hydrogen and resistivity in pure water according to claim 2, wherein,

when the palladium alloy sensor detects hydrogen in pure water of the pure water cooling device, H2 molecules are catalyzed into H atoms and adsorbed in crystal lattices of Pd-Ni alloy to cause resistance change, and then the change of the resistance is converted into hydrogen concentration through the signal conditioning circuit, so that hydrogen measurement is realized.

5. The apparatus for measuring hydrogen and resistivity in pure water according to claim 2, wherein,

the palladium alloy sensor adopts a Wheatstone bridge technology to design the hydrogen sensor with the zero automatic calibration function, so that the hydrogen sensor does not need to be heated to a constant temperature in work.

6. The apparatus for measuring hydrogen and resistivity in pure water according to claim 1, wherein,

the communication module includes: RS485 unit and LORA unit.

7. The apparatus for measuring hydrogen and resistivity in pure water according to claim 1, wherein,

further comprises: the device comprises a storage battery, a charging circuit and a charging interface; the storage battery is used for supplying power to electronic components in the device; the charging end of the storage battery is connected with an external power supply through a charging circuit and a charging interface.

8. The apparatus for measuring hydrogen and resistivity in pure water according to claim 1, wherein,

further comprises: the storage device is connected with the processor, and the processor stores the acquired hydrogen information and temperature information in the pure water into the storage device.

9. The apparatus for measuring hydrogen and resistivity in pure water according to claim 1, wherein,

further comprises: and the display screen is connected with the processor and used for displaying the hydrogen information and the temperature information.

10. The apparatus for measuring hydrogen and resistivity in pure water according to claim 1, wherein,

further comprises: the processor is connected with the operation key to acquire parameter information and control instructions input by a user.

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