CN214570971U - Hydrogen-rich water concentration on-line monitoring system - Google Patents
Hydrogen-rich water concentration on-line monitoring system Download PDFInfo
- Publication number
- CN214570971U CN214570971U CN202120652599.2U CN202120652599U CN214570971U CN 214570971 U CN214570971 U CN 214570971U CN 202120652599 U CN202120652599 U CN 202120652599U CN 214570971 U CN214570971 U CN 214570971U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- water
- pipeline
- inlet pipeline
- rich water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to an on-line hydrogen-rich water concentration monitoring system, which comprises a balance container, and a water inlet pipeline, a water outlet pipeline, an air inlet pipeline, an air outlet pipeline and a control system which are respectively communicated with the balance container; a first pressure sensor, a first temperature sensor and an ultrasonic atomization plate are arranged in the balance container; the air inlet pipeline is provided with a gas mass flow controller; the water outlet pipeline is provided with a vacuum pump; the water inlet pipeline is a hydrogen-rich water inlet pipeline and is provided with a water pump; the air outlet pipeline is sequentially provided with a dryer, a heat conduction detector and an integrator; the water inlet pipeline, the water outlet pipeline, the air inlet pipeline and the air outlet pipeline are respectively provided with a valve which can be controlled to be opened and closed; the control system is used as a control center and is in signal connection with the valve, the gas mass flow controller, the first pressure sensor, the first temperature sensor, the water pump and the vacuum pump. The system has the advantages of low price, simple operation, accurate detection and wide application range.
Description
Technical Field
The utility model relates to a hydrogen-rich water concentration on-line monitoring system belongs to hydrogen-rich water concentration detection technical field.
Background
The physiological function of hydrogen is more and more accepted, and the application of hydrogen-rich water is more and more extensive, such as drinking, bathing, agricultural irrigation, cultivation and the like. The existing hydrogen-rich water test mainly comprises OPR method detection, reagent titration method, headspace gas chromatography and the like. However, in the above methods, the ORP method is only suitable for a pure water system, the reagent titration method cannot be performed on line, the reagent is expensive, the headspace gas chromatography technique is complicated, the equipment cost is high, and the method is not suitable for industrial production and on-line monitoring, such as hydrogen water irrigation, hydrogen-rich water beverage production, and the like, and especially for hydrogen water irrigation, the ORP and titration method cannot accurately monitor the hydrogen concentration due to the complicated water quality.
In conclusion, the hydrogen-rich water industry urgently needs an online hydrogen-rich water concentration monitoring technology and system which are simple in operation, accurate in detection, wide in application range and high in automation degree.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydrogen-rich water concentration on-line monitoring system adopts online static headspace sample mode, utilizes heat-conduction and electrochemical sensor of relative low price, carries out on-line monitoring to rich oxygen water, and this system is low in price, easy operation, detects accuracy, accommodation extensively.
The utility model adopts the following technical proposal:
an on-line hydrogen-rich water concentration monitoring system comprises a balance container 4, and a water inlet pipeline 2, a water outlet pipeline 3, an air inlet pipeline 5, an air outlet pipeline 6 and a control system which are respectively communicated with the balance container; a first pressure sensor 405, a first temperature sensor 404 and an ultrasonic atomization plate 401 are arranged in the balance container 4; the air inlet pipeline 5 is provided with a gas mass flow controller 507; the water outlet pipeline 3 is provided with a vacuum pump 302; the water inlet pipeline 2 is a hydrogen-rich water inlet pipeline and is provided with a water pump 201; the gas outlet pipeline 6 is sequentially provided with a dryer, a heat conduction detector 603/an electrochemical sensor and an integrator 604; the water inlet pipeline 2, the water outlet pipeline 3, the air inlet pipeline 5 and the air outlet pipeline 6 are respectively provided with a valve which can be controlled to be opened and closed; the control system is used as a control center and is in signal connection with the valve, the gas mass flow controller 507, the first pressure sensor 405, the first temperature sensor 404, the water pump 201 and the vacuum pump 302.
Preferably, a gas buffer storage tank 504 for quantifying, fixing temperature and maintaining pressure is arranged at the front end of the gas mass flow controller 507, and a second temperature sensor 505 and a second pressure sensor 506 which are simultaneously in signal connection with a control system are arranged in the gas buffer storage tank 504.
Further, a first check valve 601 is arranged in front of the silica gel molecular sieve composite dryer 602; the air inlet pipeline 5 is sequentially provided with an air pump 501, an air filtering purifier 502, a second one-way valve 503, the air buffer storage tank 504 and the mass flow controller 507.
Further, the water pump 201 is a peristaltic pump, a diaphragm pump or a plunger pump.
Furthermore, the water outlet pipeline 3 further comprises a bypass branch which is directly communicated with the equilibrium container 4 and is used for exhausting air when the equilibrium container 4 is purged, and a second electromagnetic valve 303 is arranged on the bypass branch; the valves include a first solenoid valve 301 and a second solenoid valve 303 located at the front end of a vacuum pump 302.
Furthermore, the hydrogen-rich water source to be detected is a hydrogen-rich water pipeline 1, and the water inlet pipeline 2 is connected with the hydrogen-rich water pipeline 1.
Still further, a perforated flap 402 is arranged right above the ultrasonic atomization plate 401.
Still further, the balance container is also provided with a filler or a baffle.
Preferably, the equalizing container 4 is further provided with a heater 403 for heating it.
The on-line monitoring method for the hydrogen-rich water concentration comprises the following steps of:
s1: gas storage: utilizing a gas buffer storage tank 504 to obtain quantitative, constant-temperature and pressure-maintaining auxiliary gas;
s2: purging: the bypass branch is opened to complete the purging of the balance container 4;
s3: vacuumizing: turning on the vacuum pump 302 to evacuate the equalization vessel 4 and reduce the pressure of the equalization vessel 4 to a set gauge pressure monitored by a first pressure sensor 405;
s4: water inflow: starting the water pump 201, pumping a certain amount of hydrogen-rich water into the balance container 4, and recovering the pressure in the balance container 4 to a gauge pressure of 0MPa under the monitoring of the first pressure sensor 405;
s5, ultrasonic atomization and heating: starting the ultrasonic atomization plate 401 and the heater 403, and enabling the atomized water sample to flow back to the bottom of the balance container 4 after encountering the porous folded plate 402 for condensation; the huge surface area of the porous folded plate 402 enables hydrogen in water to quickly realize gas-liquid phase equilibrium in the equilibrium container 4;
s6, auxiliary gas hydrogen carrying gas detection: and opening the mass flow controller 507, the valve on the gas outlet pipeline, the heat conduction detector 603 and the integrator 604, wherein the gas of the auxiliary gas-carrying balance container 4 of the gas inlet pipeline 5 passes through the first one-way valve 601, is dried by the silica gel molecular sieve composite dryer 602, and then enters the heat conduction detector 603 to detect the hydrogen concentration.
Preferably, the auxiliary gas is compressed air; the equilibrium pressure of the equilibrium container 4 is between 0.05 and 0.5Mpa, and the liquid volume accounts for 10 to 90 percent of the equilibrium container; the detectable hydrogen-rich water has a hydrogen concentration in the range of 10ppb to 10 ppm.
The beneficial effects of the utility model reside in that:
1) the oxygen-enriched water is monitored on line by adopting an on-line static headspace sampling mode and utilizing a heat conduction and electrochemical sensor with relatively low price, and the system has low price, simple operation, accurate detection and wide application range;
2) the hydrogen-enriched water concentration monitoring device is specially used for monitoring the hydrogen-enriched water concentration, and the steps of gas storage, purging, water inlet, vacuumizing, water inlet, heating and atomizing, auxiliary gas hydrogen-carrying detection and the like are all automatically completed, so that the automation degree is high.
Drawings
Fig. 1 is a schematic diagram of the hydrogen-rich water concentration on-line monitoring system of the present invention.
In the figure, 1 a hydrogen-rich water pipeline, 2 a water inlet pipeline and 201 a peristaltic pump are arranged; 3, a water outlet pipeline, 301 a first electromagnetic valve and 302 a vacuum pump; 303 a second solenoid valve 4 equalizing vessel, 401 an ultrasonic atomization plate, 402 a perforated flap, 403 a heater, 404 a first temperature sensor, 405 a first pressure sensor; 5 air inlet pipeline, 501 air pump, 502 air filtering purifier, 503 second one-way valve, 504 air buffer storage tank, 505 second pressure sensor, 506 second temperature sensor 507 air mass flow controller; 6 gas outlet pipelines, 601 a first one-way valve, 602 a silica gel molecular sieve composite dryer, 603 a heat conduction detector and 604 an integrator.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, an online hydrogen-rich water concentration monitoring system comprises a balance container 4, and a water inlet pipeline 2, a water outlet pipeline 3, an air inlet pipeline 5, an air outlet pipeline 6 and a control system which are respectively communicated with the balance container; a first pressure sensor 405, a first temperature sensor 404, an ultrasonic atomization plate 401 and a heater 403 are arranged in the balance container 4; the air inlet pipeline 5 is provided with a gas mass flow controller 507; the water outlet pipeline 3 is provided with a vacuum pump 302; the water inlet pipeline 2 is a hydrogen-rich water inlet pipeline and is provided with a water pump 201; the gas outlet pipeline 6 is sequentially provided with a silica gel molecular sieve composite dryer 602, a heat conduction detector 603 and an integrator 604; the water inlet pipeline 2, the water outlet pipeline 3, the air inlet pipeline 5 and the air outlet pipeline 6 are respectively provided with a valve which can be controlled to be opened and closed; the control system is used as a control center and is in signal connection with the valve, the gas mass flow controller 507, the first pressure sensor 405, the first temperature sensor 404, the water pump 201 and the vacuum pump 302.
The integrator 604 is configured to integrate and accumulate the instantaneous hydrogen concentration value and the response time to obtain a final hydrogen content value.
Since the thermal conductivity of hydrogen is much higher than that of oxygen, nitrogen, or the like, the thermal conductivity detector 603 can be used to measure the concentration of gaseous hydrogen, or an electrochemical sensor with higher accuracy can be selected.
In this embodiment, a gas buffer tank 504 for quantitative, constant temperature and constant pressure is provided at the front end of the gas mass flow controller 507, and a second temperature sensor 505 and a second pressure sensor 506 which are simultaneously in signal connection with a control system are provided in the gas buffer tank 504.
In this embodiment, a first check valve 601 is further disposed before the silica gel molecular sieve composite dryer 602; the air inlet pipeline 5 is sequentially provided with an air pump 501, an air filtering purifier 502, a second one-way valve 503, the air buffer storage tank 504 and the mass flow controller 507. The main purpose of the method is to accurately control the air inflow.
Preferably, the water pump 201 is a peristaltic pump, a diaphragm pump or a plunger pump. The main purpose is to accurately control the water inflow. This purpose also can be realized through the ordinary booster pump of sensor cooperation inlet channel installation such as installation level gauge in balance vessel 4, when treating hydrogen-rich water itself to have pressure, the inlet channel also can not install the water pump, and intake with solenoid valve control.
Referring to fig. 1, the water outlet pipeline 3 further includes a bypass branch directly connected to the equilibrium container 4 for exhausting gas when purging the equilibrium container 4, and a second electromagnetic valve 303 is disposed on the bypass branch; the valves include a first solenoid valve 301 and a second solenoid valve 303 located at the front end of a vacuum pump 302.
With reference to fig. 1, the hydrogen-rich water source to be detected is a hydrogen-rich water pipeline 1, and the water inlet pipeline 2 is connected to the hydrogen-rich water pipeline 1.
With continued reference to FIG. 1, a perforated flap 402 is positioned directly above the ultrasonic atomization plate 401.
The balance container is also provided with a filler or a baffle plate and the like, which are not shown in the attached drawings and aim to be used as an atomizing gas contact area; the main purpose of the atomizer is to quickly disturb the sample and realize quick detection, and can also be realized by using a mode such as an electric or magnetic stirrer, heating and the like.
When the hydrogen-rich water concentration on-line monitoring system works, the method comprises the following steps:
s1: gas storage: utilizing a gas buffer storage tank 504 to obtain quantitative, constant-temperature and pressure-maintaining auxiliary gas;
s2: purging: the bypass branch is opened to complete the purging of the balance container 4;
s3: vacuumizing: turning on the vacuum pump 302 to evacuate the equalization vessel 4 and reduce the pressure of the equalization vessel 4 to a set gauge pressure monitored by a first pressure sensor 405;
s4: water inflow: starting the water pump 201, pumping a certain amount of hydrogen-rich water into the balance container 4, and recovering the pressure in the balance container 4 to a gauge pressure of 0MPa under the monitoring of the first pressure sensor 405;
s5, ultrasonic atomization and heating: starting the ultrasonic atomization plate 401 and the heater 403, and enabling the atomized water sample to flow back to the bottom of the balance container 4 after encountering the porous folded plate 402 for condensation; the huge surface area of the porous folded plate 402 enables hydrogen in water to quickly realize gas-liquid phase equilibrium in the equilibrium container 4;
s6, auxiliary gas hydrogen carrying gas detection: and opening the mass flow controller 507, the valve on the gas outlet pipeline, the heat conduction detector 603 and the integrator 604, wherein the gas of the auxiliary gas-carrying balance container 4 of the gas inlet pipeline 5 passes through the first one-way valve 601, is dried by the silica gel molecular sieve composite dryer 602, and then enters the heat conduction detector 603 to detect the hydrogen concentration.
The auxiliary gas can be compressed air or steel cylinder gas, the gas can be nitrogen, oxygen or air, and the mass flow controller mainly aims at controlling the gas flow and can be realized by stabilizing the pressure of a gas source and controlling the resistance of a pipeline through a resistance piece.
When the atomizer mode is used for sample disturbance, the liquid level in the balance container is as low as possible on the premise of meeting the requirement of the atomizer to work so as to achieve the aim of rapid balance.
The equilibrium pressure of the equilibrium container 4 is between 0.05 and 0.5Mpa, and the liquid volume accounts for 10 to 90 percent of the equilibrium container; the detectable hydrogen-rich water has a hydrogen concentration in the range of 10ppb to 10 ppm.
As a more specific research example, as shown in fig. 1, after the online monitoring system is started, an air pump 501 on an air inlet pipe 5 pressurizes air, the air passes through a filter purifier 502 and then enters a storage tank 504 with a volume of 3L, until the pressure of a pressure sensor 505 reaches 0.4MPa, the air pump 501 is closed, and an air storage link is completed; opening a gas mass flow controller 507, controlling the flow at 1000ml/min, opening an electromagnetic valve 303, closing the electromagnetic valve 303 and the gas mass flow controller 507 after 10 seconds, completing purging of a balance container 4 with the volume of 500ml, opening an electromagnetic valve 301 and a vacuum pump 302, reducing the pressure of the balance container 4 to-0.05 MPa of gauge pressure, opening a peristaltic pump 201 of a water inlet pipeline 2, pumping 250ml of hydrogen-rich water to be detected in a pipeline 1 into the balance container 4, recovering the pressure in the balance container 4 to 0MPa of gauge pressure, starting an ultrasonic atomizer 401 and a heater 403 with the power of 50W and 500W respectively, enabling an atomized water sample to flow back to the bottom of the balance container 4 after encountering a porous folded plate 402 for condensation, rapidly realizing gas-liquid phase balance of hydrogen in the water in the balance container 4 due to the huge surface area because the diameter of atomized liquid drops is only about 30 microns, and generally ensuring the hydrogen content in the 250ml sample to be below 10ppm, i.e. less than 30ml of hydrogen, and the saturated solubility of hydrogen is only 18mg/L, so that the proportion of hydrogen in the gas phase of the equilibration vessel 4 is more than 99% of all hydrogen according to henry's law, i.e. the total amount of hydrogen in the gas phase of the equilibration vessel 4, i.e. the amount of dissolved hydrogen in a 250ml sample, can basically be considered. After ultrasonic atomization and heating for 10 seconds, the ultrasonic atomizer 401 and the heater 403 are closed, hydrogen in a sample completely enters a gas phase at the moment, a gas mass flow controller 507 of an air inlet pipeline 5 is opened, the flow is 250ml/min, an air outlet pipeline electromagnetic valve 604, a heat conduction detector 603 and an integrator 604 are opened, the gas of a compressed air-carried balance container 4 of the air inlet pipeline passes through a one-way valve 601, is dried by a silica gel molecular sieve composite dryer 602 and then enters the heat conduction detector 603, the hydrogen concentration is detected, because the hydrogen in the balance container 4 is carried in the gas, the heat conduction coefficient of the hydrogen is far higher than that of the air, the signal of the heat conduction detector 603 can show a trend of gradually rising and then gradually falling, the part exceeds the base value by more than 1 percent, the integrator 604 is used for integrating the total hydrogen quantity carried by the carrier gas from the balance container 4 according to the flow and the hydrogen concentration, if 15ml, the hydrogen content in the original 250ml water sample is 15ml, namely 1.35mg, and the hydrogen concentration of the sample is 5.4 mg/L.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (9)
1. The utility model provides a hydrogen-rich water concentration on-line monitoring system which characterized in that:
comprises a balance container (4), and a water inlet pipeline (2), a water outlet pipeline (3), an air inlet pipeline (5), an air outlet pipeline (6) and a control system which are respectively communicated with the balance container;
a first pressure sensor (405), a first temperature sensor (404) and an ultrasonic atomization plate (401) are arranged in the balance container (4);
the air inlet pipeline (5) is provided with a gas mass flow controller (507);
the water outlet pipeline (3) is provided with a vacuum pump (302);
the water inlet pipeline (2) is a hydrogen-rich water inlet pipeline and is provided with a water pump (201);
the air outlet pipeline (6) is sequentially provided with a dryer, a heat conduction detector (603)/an electrochemical sensor and an integrator (604);
the water inlet pipeline (2), the water outlet pipeline (3), the air inlet pipeline (5) and the air outlet pipeline (6) are respectively provided with a valve which can be controlled to be opened and closed;
the control system is used as a control center and is in signal connection with the valve, the gas mass flow controller (507), the first pressure sensor (405), the first temperature sensor (404), the water pump (201) and the vacuum pump (302).
2. The on-line hydrogen-rich water concentration monitoring system according to claim 1, characterized in that: the front end of the gas mass flow controller (507) is provided with a gas buffer storage tank (504) for quantification, temperature setting and pressure maintaining, and a second temperature sensor (505) and a second pressure sensor (506) which are simultaneously in signal connection with a control system are arranged in the gas buffer storage tank (504).
3. The on-line hydrogen-rich water concentration monitoring system according to claim 2, characterized in that: a first one-way valve (601) is arranged in front of the silica gel molecular sieve composite dryer (602); an air pump (501), an air filtering purifier (502), a second one-way valve (503), the air buffer storage tank (504) and the mass flow controller (507) are sequentially arranged on the air inlet pipeline (5).
4. The on-line hydrogen-rich water concentration monitoring system according to claim 2, characterized in that: the water pump (201) is a peristaltic pump, a diaphragm pump or a plunger pump.
5. The on-line hydrogen-rich water concentration monitoring system according to claim 2, characterized in that: the water outlet pipeline (3) also comprises a bypass branch which is directly communicated with the balance container (4) and is used for exhausting air when the balance container (4) is purged, and a second electromagnetic valve (303) is arranged on the bypass branch; the valve comprises a first electromagnetic valve (301) and a second electromagnetic valve (303) which are positioned at the front end of a vacuum pump (302).
6. The on-line hydrogen-rich water concentration monitoring system according to claim 2, characterized in that: the hydrogen-rich water source that awaits measuring is hydrogen-rich water pipeline (1), water intake pipe (2) are connected hydrogen-rich water pipeline (1).
7. The on-line hydrogen-rich water concentration monitoring system according to claim 5, characterized in that: a multi-hole folded plate (402) is arranged right above the ultrasonic atomization plate (401).
8. The on-line hydrogen-rich water concentration monitoring system according to claim 7, characterized in that: the balancing container is also provided with a filler or a baffle.
9. The on-line hydrogen-rich water concentration monitoring system according to claim 1, characterized in that: the balance container (4) is also internally provided with a heater (403) for heating the balance container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120652599.2U CN214570971U (en) | 2021-03-30 | 2021-03-30 | Hydrogen-rich water concentration on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120652599.2U CN214570971U (en) | 2021-03-30 | 2021-03-30 | Hydrogen-rich water concentration on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214570971U true CN214570971U (en) | 2021-11-02 |
Family
ID=78356242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120652599.2U Active CN214570971U (en) | 2021-03-30 | 2021-03-30 | Hydrogen-rich water concentration on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214570971U (en) |
-
2021
- 2021-03-30 CN CN202120652599.2U patent/CN214570971U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206020318U (en) | A kind of gas dew point analytical equipment | |
| CN111593292B (en) | Dynamic detection device and detection method for carbon potential of vacuum furnace | |
| CN214570971U (en) | Hydrogen-rich water concentration on-line monitoring system | |
| CN217901489U (en) | Bi-component gas separation testing device | |
| CN114624319B (en) | Method for quantitatively obtaining ppm-level hydrogen isotope content in material based on thermal analysis-quadrupole mass spectrometry measurement principle | |
| CN102901699A (en) | Device and method for testing gas separation performance of film | |
| CN114062219A (en) | Breathable film performance test integrated device and operation method thereof | |
| CN113072160A (en) | Hydrogen-rich water concentration on-line monitoring system | |
| CN212568647U (en) | High-temperature pretreatment device for volatile organic compounds in pollution source | |
| CN101169451B (en) | Integral multi-components fermented tail gas on-line detection device | |
| CN218180761U (en) | Automatic accurate preparation device of insulating standard oil | |
| Lee et al. | Evaluation of semiconductor gas sensor system for on-line ethanol estimation | |
| CN211121810U (en) | Condenser leak detection subsystem and condenser system | |
| CN201107318Y (en) | Integration multi-component fermentation tail gas on-line testing apparatus | |
| CN201331484Y (en) | Material rusty tester | |
| CN212505037U (en) | Vacuum furnace carbon potential dynamic detection device | |
| CN108554207B (en) | Low-concentration standard gas continuous generation device and generation method thereof | |
| CN113984958A (en) | System for analyzing flammability of gas in containment | |
| CN209311289U (en) | A kind of UF membrane test device of positive/negative-pressure one | |
| CN207351867U (en) | It is a kind of can on-line checking gaseous jet simulation device | |
| CN202854018U (en) | Device for testing gas separating performance of membrane | |
| CN117169088B (en) | High-pressure hydrogen permeation continuous monitoring device and testing method thereof | |
| CN219302347U (en) | Trace moisture detector | |
| CN219328769U (en) | On-line detection device for detecting PH3 content in recovered hydrogen | |
| Chauvatcharin et al. | A mass spectrometry membrane probe and practical problems associated with its application in fermentation processes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |