CN113075290A - Propionic acid concentration measuring device and method - Google Patents
Propionic acid concentration measuring device and method Download PDFInfo
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- CN113075290A CN113075290A CN202110225901.0A CN202110225901A CN113075290A CN 113075290 A CN113075290 A CN 113075290A CN 202110225901 A CN202110225901 A CN 202110225901A CN 113075290 A CN113075290 A CN 113075290A
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- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 235000019260 propionic acid Nutrition 0.000 title claims abstract description 37
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 104
- 239000013078 crystal Substances 0.000 claims abstract description 23
- 239000010453 quartz Substances 0.000 claims abstract description 23
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- 238000005259 measurement Methods 0.000 claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 43
- 239000007789 gas Substances 0.000 claims description 40
- 239000002912 waste gas Substances 0.000 claims description 30
- 229920001971 elastomer Polymers 0.000 claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- DSFHXKRFDFROER-UHFFFAOYSA-N 2,5,8,11,14,17-hexaoxabicyclo[16.4.0]docosa-1(22),18,20-triene Chemical compound O1CCOCCOCCOCCOCCOC2=CC=CC=C21 DSFHXKRFDFROER-UHFFFAOYSA-N 0.000 claims description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 abstract description 11
- 238000004364 calculation method Methods 0.000 abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
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- 235000019249 food preservative Nutrition 0.000 description 1
- 239000005452 food preservative Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
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- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/022—Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/014—Resonance or resonant frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a propionic acid concentration measuring device and a propionic acid concentration measuring method, relates to the technical field of propionic acid concentration measurement, and aims to solve the problems that in the prior art, when propionic acid is measured, a laboratory technician needs to manually replace and assemble a detection tank, the replacement process is complex, repeated mechanical workload of the laboratory technician is increased, fatigue is easily generated, and the calculation error of a measuring result is caused. The top of workstation is provided with the oscillator, the top of oscillator is provided with the quartz crystal sensor, one side of workstation is provided with the quartz crystal sensor, and the opposite side of workstation is provided with the jar, the inside of quartz crystal sensor is provided with the lift cylinder, the top of lift cylinder is provided with the elevating platform, and lift cylinder and elevating platform welded connection, the top of elevating platform is provided with detects the jar, and detects the jar and have six, the inside of elevating platform is provided with the revolving stage, and the elevating platform passes through the rotating electrical machines with the revolving stage and rotates and be connected.
Description
Technical Field
The invention relates to the technical field of propionic acid concentration determination, in particular to a propionic acid concentration determination device and a determination method thereof.
Background
Propionic acid, also known as nascent oleic acid, is a three-carbon carboxylic acid, a short chain saturated fatty acid, of the formula CH3CH2 COOH. Pure propionic acid is a colorless, corrosive liquid with an irritating odor. Propionic acid is mainly used as a food preservative and a mildew preventive, can also be used as a viscous substance inhibitor in beer and the like, a cellulose nitrate solvent and a plasticizer, and can also be used for preparing a nickel plating solution, preparing food flavors and manufacturing medicines, pesticides, mildew preventives and the like.
However, when propionic acid is measured, a laboratory technician is required to manually replace and assemble the detection tank, the replacement process is complex, repeated mechanical workload of the laboratory technician is increased, fatigue is easily caused, and the calculation error of the measurement result is caused; therefore, the existing requirements are not met, and a propionic acid concentration measuring device and a propionic acid concentration measuring method are provided for the device.
Disclosure of Invention
The invention aims to provide a propionic acid concentration measuring device and a propionic acid concentration measuring method, which aim to solve the problems that a laboratory technician needs to manually replace and assemble a detection tank when measuring propionic acid, the replacement process is complex, repeated mechanical workload of the laboratory technician is increased, fatigue is easily generated, and the calculation of a measuring result is wrong in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a propionic acid concentration measurement device, includes the workstation, the top of workstation is provided with the oscillator, the top of oscillator is provided with the quartz crystal sensor, one side of workstation is provided with the second locker, and the opposite side of workstation is provided with the jar, the inside of second locker is provided with the lift cylinder, the top of lift cylinder is provided with the elevating platform, and lift cylinder and elevating platform welded connection, the top of elevating platform is provided with detects the jar, and detects the jar and have six, the inside of elevating platform is provided with the revolving stage, and the elevating platform passes through the rotating electrical machines rotation with the revolving stage and is connected, the inside of rotating electrical machines is provided with fixed arc piece, and two fixed arc pieces are a set of, fixed arc piece is total twelve.
Preferably, one side that fixed arc piece kept away from each other all is provided with electric telescopic handle, and electric telescopic handle and fixed arc piece welded connection, the revolving stage passes through the draw-in groove with electric telescopic handle and is connected.
Preferably, one side of the fixed arc piece, which is far away from the electric telescopic rod, is provided with a plurality of rubber gaskets, and the rubber gaskets are connected with the fixed arc piece through adhesives.
Preferably, one side that the workstation was kept away from to lift cylinder is provided with first locker, the inside of first locker is provided with the nitrogen gas jar, quartz crystal sensor's outside is provided with the detection room, and quartz crystal sensor passes through the sealing ring with the detection room and is connected.
Preferably, the both ends that detect the room all are provided with rubber and connect the lid, and detect the room and be connected the lid with rubber and pass through the draw-in groove and be connected, the top that detects the jar is provided with T type tee bend ball valve, T type tee bend ball valve and nitrogen gas jar, detection jar and rubber are connected the lid and are passed through the pipeline intercommunication.
Preferably, the inside of jar is provided with the waste gas collection tank, the inside of waste gas collection tank is provided with U type long tube, the waste gas collection tank is connected with U type long tube and jar laminating, U type long tube and rubber are connected the lid and are passed through the draw-in groove and are connected.
Preferably, one side of the oscillator is provided with a frequency counter, and the oscillator is electrically connected with the frequency counter and the quartz crystal sensor.
Preferably, the sensitive coating material on the surface of the quartz crystal sensor is benzo-18-crown-6-ether, and the amount of the benzo-18-crown-6-ether on the quartz crystal sensor is 5-35 micrograms.
A use method of a propionic acid concentration measuring device comprises the following steps:
the method comprises the following steps: firstly taking out a detection tank filled with detection gas, putting the detection tank between a group of fixed arc sheets, sequentially putting a plurality of detection tanks on a rotating table, then starting an electric telescopic rod to push the fixed arc sheets to move towards the detection tank, fixing the positions of the detection tanks, wherein the top of one detection tank is provided with a T-shaped three-way ball valve, and then starting a lifting cylinder to drive a lifting platform to ascend, so that the detection tank is connected with the T-shaped three-way ball valve;
step two: starting an oscillator and a frequency counter, wherein the frequency counter can display the oscillating frequency at the moment, then opening a T-shaped three-way ball valve to communicate a nitrogen tank with a detection chamber, introducing nitrogen in the nitrogen tank into the detection chamber, closing the T-shaped three-way ball valve when the frequency counter displays stable frequency data, and recording an initial frequency value F1;
step three: opening the T-shaped three-way ball valve to communicate the detection tank with the detection chamber, enabling detection gas in the detection tank to enter the detection chamber, closing the T-shaped three-way ball valve when the frequency counter displays stable frequency data, and recording a frequency value F2;
step four: the frequency response (Δ F, Hz) of the test gas can be given by: F1-F2, and substituting F into y 22.09+25.37x equation to calculate the concentration of propionic acid gas in the detected gas;
step five: starting the lifting cylinder to drive the lifting platform to descend, starting the rotating motor to enable the rotating platform to rotate, replacing a new detection tank below the T-shaped three-way ball valve, then starting the lifting cylinder to drive the lifting platform to ascend, enabling the new detection tank to be connected with the T-shaped three-way ball valve, and continuing the second step, the third step and the fourth step to perform a new round of determination;
step six: after all the gas in the waste gas collecting tank is measured, the T-shaped three-way ball valve is opened to communicate the nitrogen tank with the detection chamber, the frequency counter displays the frequency and recovers to the initial frequency value F1, then the T-shaped three-way ball valve is closed for next measurement, all the discharged gas can enter the waste gas collecting tank from the U-shaped long pipe through a drainage method, the waste gas collecting tank is taken out after the measurement is finished, and the gas in the waste gas collecting tank is treated in the same way.
Compared with the prior art, the invention has the beneficial effects that:
1. the detection tank is replaced through the rotating table and the lifting table, the manual replacement is replaced, the mechanical workload of a laboratory worker is reduced, the attention of the laboratory worker can be more concentrated, the possibility of error calculation data is reduced, the device is more convenient and faster to use, the detection tank is fixed through the two fixed arc pieces, the detection tank can be firmer, and the rubber gasket on the fixed arc pieces protects and reinforces the detection tank, so that the detection tank is more stable when the rotating table and the lifting table run;
2. the invention ensures that the detection chamber is a sealed environment through the sealing ring and the rubber connecting cover, so that the result measured by the device is more accurate, the connection condition of the nitrogen tank, the detection tank and the detection chamber is controlled through the T-shaped three-way ball valve, the structure is simple, and the use is more convenient;
3. according to the invention, through the water tank, the U-shaped long pipe and the waste gas collecting tank, waste gas discharged in an experiment enters the waste gas collecting tank from the U-shaped long pipe through a drainage method, the waste gas collecting tank is taken out after the measurement is finished, the gas in the waste gas collecting tank is treated in the same way, the environment is not damaged by the discharged gas, and the environment is protected.
Drawings
FIG. 1 is an overall front view of the present invention;
FIG. 2 is an enlarged view of the invention at A;
FIG. 3 is a schematic view of a connection structure of a turntable and a lifting table according to the present invention;
FIG. 4 is a schematic view of a connection structure of a stationary arc plate and a rotary table according to the present invention;
fig. 5 is an enlarged view of the invention at B.
In the figure: 1. a first locker; 2. a nitrogen tank; 3. a detection tank; 4. a T-shaped three-way ball valve; 5. a lifting platform; 6. a rubber connecting cover; 7. a detection chamber; 8. a rotating table; 9. fixing the arc sheet; 10. a water vat; 11. a waste gas collection tank; 12. a work table; 13. a second storage cabinet; 14. a quartz crystal sensor; 15. a seal ring; 16. an oscillator; 17. a frequency counter; 18. a rotating electric machine; 19. an electric telescopic rod; 20. a rubber gasket; 21. a lifting cylinder; 22. a U-shaped long tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an embodiment of the present invention is shown: a propionic acid concentration measuring device comprises a workbench 12, an oscillator 16 is arranged at the top of the workbench 12, a quartz crystal sensor 14 is arranged at the top of the oscillator 16, a second storage cabinet 13 is arranged at one side of the workbench 12, a water cylinder 10 is arranged at the other side of the workbench 12, a lifting cylinder 21 is arranged inside the second storage cabinet 13, a lifting platform 5 is arranged at the top of the lifting cylinder 21, the lifting cylinder 21 is connected with the lifting platform 5 in a welding manner, detection tanks 3 are arranged at the top of the lifting platform 5, six detection tanks 3 are arranged, a rotating platform 8 is arranged inside the lifting platform 5, the lifting platform 5 is rotatably connected with the rotating platform 8 through a rotating motor 18, the detection tanks 3 are replaced through the rotating platform 8 and the lifting platform 5, manual replacement before is replaced, the mechanical workload of an experimenter is reduced, the attention of the experimenter can be concentrated, reduce the possibility of calculation data error for it is more convenient that the device is used, and rotating electrical machines 18's inside is provided with fixed arc piece 9, and fixed arc piece 9 two is a set of, and fixed arc piece 9 is total twelve, detects jar 3 and fixes with two fixed arc pieces 9, can its more firm.
Further, one side that a set of fixed arc piece 9 kept away from each other all is provided with electric telescopic handle 19, and electric telescopic handle 19 and fixed arc piece 9 welded connection, revolving stage 8 passes through the draw-in groove with electric telescopic handle 19 and is connected, starts electric telescopic handle 19 and promotes fixed arc piece 9 and remove to detecting 3 directions of jar, fixes the position that detects jar 3.
Further, one side that electric telescopic handle 19 was kept away from to fixed arc piece 9 is provided with rubber gasket 20, and rubber gasket 20 has a plurality ofly, and rubber gasket 20 passes through the viscose with fixed arc piece 9 to be connected, and rubber gasket 20 on the fixed arc piece 9 protects and consolidates detection jar 3, makes revolving stage 8 and elevating platform 5 detect jar 3 stability more when the operation.
Further, one side that workstation 12 was kept away from to lift cylinder 21 is provided with first locker 1, and the inside of first locker 1 is provided with nitrogen gas jar 2, and quartz crystal sensor 14's outside is provided with detection room 7, and quartz crystal sensor 14 passes through sealing ring 15 with detection room 7 to be connected, and sealing ring 15 and rubber are connected lid 6 and are guaranteed jointly that detection room 7 is a sealed environment, and the result that lets the device survey is surveyed is more accurate.
Further, the both ends that detect room 7 all are provided with rubber and connect lid 6, and detect room 7 and rubber and be connected lid 6 and pass through the draw-in groove and be connected, and the top that detects jar 3 is provided with T type tee bend ball valve 4, and T type tee bend ball valve 4 and nitrogen gas jar 2, detection jar 3 and rubber are connected lid 6 and are passed through the pipeline intercommunication, and T type tee bend ball valve 4 control nitrogen gas jar 2, detection jar 3 and the condition of being connected that detects room 7, simple structure, it is more convenient to use.
Further, the inside of jar 10 is provided with waste gas collection tank 11, waste gas collection tank 11's inside is provided with U type long tube 22, waste gas collection tank 11 is connected with U type long tube 22 and the laminating of jar 10, U type long tube 22 is connected lid 6 with rubber and is connected through the draw-in groove, experiment exhaust waste gas, all follow U type long tube 22 and get into waste gas collection tank 11 through the drainage method, take out waste gas collection tank 11 after the survey is ended, do same processing to the gas in the waste gas collection tank 11, the gaseous environment of destruction of not random exhaust, and green.
Furthermore, a frequency counter 17 is arranged on one side of the oscillator 16, the oscillator 16 is electrically connected with the frequency counter 17 and the quartz crystal sensor 14, and the concentration value of the propionic acid gas in the detected gas can be calculated according to data displayed by the frequency counter 17.
Furthermore, the sensitive coating material on the surface of the quartz crystal sensor 14 is benzo-18-crown-6-ether, the amount of the benzo-18-crown-6-ether on the quartz crystal sensor 14 is 5-35 micrograms, propionic acid gas is selectively adsorbed on the coating material benzo-18-crown-6-ether, the generated tiny mass change can change the resonant frequency of the quartz crystal sensor 14, the propionic acid concentration in the measured gas sample is calculated according to the frequency change value, the sensitivity and the wide detection range are realized on the propionic acid, the selectivity, the reproducibility and the reversibility are good, and the measurement result is accurate.
A use method of a propionic acid concentration measuring device comprises the following steps:
the method comprises the following steps: firstly taking out a detection tank 3 filled with detection gas, putting the detection tank 3 between a group of fixed arc sheets 9, sequentially putting a plurality of detection tanks 3 on a rotating platform 8, then starting an electric telescopic rod 19 to push the fixed arc sheets 9 to move towards the detection tank 3, fixing the positions of the detection tanks 3, wherein the top of one detection tank 3 is provided with a T-shaped three-way ball valve 4, and then starting a lifting cylinder 21 to drive a lifting platform 5 to ascend, so that the detection tank 3 is connected with the T-shaped three-way ball valve 4;
step two: starting an oscillator 16 and a frequency counter 17, wherein the frequency counter 17 displays oscillation frequency, then opening a T-shaped three-way ball valve 4 to enable a nitrogen tank 2 to be communicated with a detection chamber 7, enabling nitrogen in the nitrogen tank 2 to enter the detection chamber 7, closing the T-shaped three-way ball valve 4 when the frequency counter 17 displays stable frequency data, and recording an initial frequency value F1;
step three: opening the T-shaped three-way ball valve 4 to communicate the detection tank 3 with the detection chamber 7, enabling detection gas in the detection tank 3 to enter the detection chamber 7, closing the T-shaped three-way ball valve 4 when the frequency counter 17 displays stable frequency data, and recording a frequency value F2;
step four: the frequency response (Δ F, Hz) of the test gas can be given by: F1-F2, and substituting F into y 22.09+25.37x equation to calculate the concentration of propionic acid gas in the detected gas;
step five: starting the lifting cylinder 21 to drive the lifting platform 5 to descend, starting the rotating motor 18 to rotate the rotating platform 8, replacing a new bottle of detection tank 3 below the T-shaped three-way ball valve 4, then starting the lifting cylinder 21 to drive the lifting platform 5 to ascend, connecting the new bottle of detection tank 3 with the T-shaped three-way ball valve 4, and continuing the step two, the step three and the step four above to perform a new round of measurement;
step six: after all the gas is measured, the T-shaped three-way ball valve 4 is opened to communicate the nitrogen tank 2 with the detection chamber 7, so that the frequency counter 17 displays the frequency and returns to the initial frequency value F1, then the T-shaped three-way ball valve 4 is closed for the next measurement, all the discharged gas can enter the waste gas collecting tank 11 from the U-shaped long pipe 22 through a drainage method, the waste gas collecting tank 11 is taken out after the measurement is finished, and the gas in the waste gas collecting tank 11 is treated in the same way.
The working principle is as follows: when in use, the detection tank 3 filled with detection gas is taken out firstly, the detection tank 3 is placed between a group of fixed arc sheets 9, a plurality of detection tanks 3 can be placed on a rotating platform 8 in sequence, then an electric telescopic rod 19 is started to push the fixed arc sheets 9 to move towards the detection tank 3, the position of the detection tank 3 is fixed, wherein the top of one detection tank 3 is provided with a T-shaped three-way ball valve 4, then a lifting cylinder 21 is started to drive a lifting platform 5 to ascend, the detection tank 3 is connected with the T-shaped three-way ball valve 4, then an oscillator 16 and a frequency counter 17 are started, the frequency counter 17 displays the oscillation frequency at the moment, then the T-shaped three-way ball valve 4 is opened to communicate a nitrogen tank 2 with a detection chamber 7, nitrogen in the nitrogen tank 2 enters the detection chamber 7, the T-shaped three-way ball valve 4 is closed when the frequency counter 17 displays stable frequency data, the initial frequency value F1 is recorded, then, the T-shaped three-way ball valve 4 is opened to communicate the detection tank 3 with the detection chamber 7, the detection gas in the detection tank 3 enters the detection chamber 7, the T-shaped three-way ball valve 4 is closed when the frequency counter 17 displays stable frequency data, a frequency value F2 is recorded, and a frequency response value (Δ F, Hz) of the detection gas can be obtained by the following formula: F1-F2, substituting Δ F into y 22.09+25.37x equation to calculate the concentration of propionic acid gas in the detected gas, starting the lifting cylinder 21 to lower the lifting platform 5, starting the rotary motor 18 to rotate the rotary platform 8, replacing a new bottle of detection tank 3 below the T-shaped three-way ball valve 4, starting the lifting cylinder 21 to drive the lifting platform 5 to lift, connecting the new bottle of detection tank 3 with the T-shaped three-way ball valve 4, continuing the above steps two, three and four, performing a new round of measurement, opening the T-shaped three-way ball valve 4 to communicate the nitrogen tank 2 with the detection chamber 7 after all measurements are completed, allowing the frequency counter 17 to display the frequency value F1, closing the T-shaped three-way ball valve 4 for the next measurement, and allowing all discharged gas to enter the waste gas collecting tank 11 from the U-shaped long drain pipe 22 by the U-shaped water drainage method, after the measurement is finished, the exhaust gas collecting tank 11 is taken out, and the gas in the exhaust gas collecting tank 11 is treated in the same way.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A propionic acid concentration measuring apparatus comprising a table (12), characterized in that: the top of the workbench (12) is provided with an oscillator (16), the top of the oscillator (16) is provided with a quartz crystal sensor (14), one side of the workbench (12) is provided with a second storage cabinet (13), the other side of the workbench (12) is provided with a water cylinder (10), the inside of the second storage cabinet (13) is provided with a lifting cylinder (21), the top of the lifting cylinder (21) is provided with a lifting platform (5), the lifting cylinder (21) is welded with the lifting platform (5), the top of the lifting platform (5) is provided with detection tanks (3), the number of the detection tanks (3) is six, the inside of the lifting platform (5) is provided with a rotating platform (8), the lifting platform (5) is rotatably connected with the rotating platform (8) through a rotating motor (18), the inside of the rotating motor (18) is provided with a fixed arc sheet (9), and two fixed arc sheets (9) are in a group, and twelve fixed arc sheets (9) are in total.
2. The apparatus for measuring propionic acid concentration according to claim 1, wherein: one side that fixed arc piece (9) kept away from each other all is provided with electric telescopic handle (19), and electric telescopic handle (19) and fixed arc piece (9) welded connection, revolving stage (8) are connected through the draw-in groove with electric telescopic handle (19).
3. The apparatus for measuring propionic acid concentration according to claim 2, wherein: one side of the fixed arc piece (9) far away from the electric telescopic rod (19) is provided with a plurality of rubber gaskets (20), and the rubber gaskets (20) are connected with the fixed arc piece (9) through adhesive.
4. The apparatus for measuring propionic acid concentration according to claim 1, wherein: one side that workstation (12) were kept away from in lift cylinder (21) is provided with first locker (1), the inside of first locker (1) is provided with nitrogen gas jar (2), the outside of quartz crystal sensor (14) is provided with detection room (7), and quartz crystal sensor (14) are connected through sealing ring (15) with detection room (7).
5. The apparatus according to claim 4, wherein: the both ends that detect room (7) all are provided with rubber and connect lid (6), and detect room (7) and rubber and be connected lid (6) and be connected through the draw-in groove, the top that detects jar (3) is provided with T type tee bend ball valve (4), T type tee bend ball valve (4) are connected lid (6) with nitrogen gas jar (2), detection jar (3) and rubber and are passed through the pipeline intercommunication.
6. The apparatus according to claim 5, wherein: the inside of jar (10) is provided with waste gas collection tank (11), the inside of waste gas collection tank (11) is provided with U type long tube (22), waste gas collection tank (11) are connected with U type long tube (22) and jar (10) laminating, U type long tube (22) are connected lid (6) through the draw-in groove with rubber.
7. The apparatus for measuring propionic acid concentration according to claim 1, wherein: a frequency counter (17) is arranged on one side of the oscillator (16), and the oscillator (16) is electrically connected with the frequency counter (17) and the quartz crystal sensor (14).
8. The apparatus for measuring propionic acid concentration according to claim 1, wherein: the sensitive coating material on the surface of the quartz crystal sensor (14) is benzo-18-crown-6-ether, and the amount of the benzo-18-crown-6-ether on the quartz crystal sensor (14) is 5-35 micrograms.
9. A method for using a propionic acid concentration measuring device, which is realized based on the propionic acid concentration measuring device of any one of claims 1-8, and is characterized by comprising the following steps:
the method comprises the following steps: firstly taking out a detection tank (3) filled with detection gas, putting the detection tank (3) between a group of fixed arc sheets (9), putting a plurality of detection tanks (3) on a rotary table (8) in sequence, then starting an electric telescopic rod (19) to push the fixed arc sheets (9) to move towards the detection tank (3), fixing the positions of the detection tanks (3), wherein a T-shaped three-way ball valve (4) is arranged at the top of one detection tank (3), then starting a lifting cylinder (21) to drive a lifting platform (5) to ascend, and connecting the detection tank (3) with the T-shaped three-way ball valve (4);
step two: starting an oscillator (16) and a frequency counter (17), wherein the frequency counter (17) displays the oscillation frequency, then opening a T-shaped three-way ball valve (4) to communicate a nitrogen tank (2) with a detection chamber (7), introducing nitrogen in the nitrogen tank (2) into the detection chamber (7), closing the T-shaped three-way ball valve (4) when the frequency counter (17) displays stable frequency data, and recording an initial frequency value F1;
step three: opening the T-shaped three-way ball valve (4) to communicate the detection tank (3) with the detection chamber (7), enabling detection gas in the detection tank (3) to enter the detection chamber (7), closing the T-shaped three-way ball valve (4) when the frequency counter (17) displays stable frequency data, and recording a frequency value F2;
step four: the frequency response (Δ F, Hz) of the test gas can be given by: F1-F2, and substituting F into y 22.09+25.37x equation to calculate the concentration of propionic acid gas in the detected gas;
step five: starting a lifting cylinder (21) to drive a lifting platform (5) to descend, starting a rotating motor (18) to rotate a rotating platform (8), replacing a new detection tank (3) below a T-shaped three-way ball valve (4), then starting the lifting cylinder (21) to drive the lifting platform (5) to ascend, connecting the new detection tank (3) with the T-shaped three-way ball valve (4), and continuing the step two, the step three and the step four above to perform a new round of measurement;
step six: after all the gas is measured, opening the T-shaped three-way ball valve (4) to communicate the nitrogen tank (2) with the detection chamber (7), enabling the frequency counter (17) to display the frequency to recover to the initial frequency value F1, then closing the T-shaped three-way ball valve (4) for next measurement, enabling all the discharged gas to enter the waste gas collecting tank (11) from the U-shaped long pipe (22) through a drainage method, taking out the waste gas collecting tank (11) after the measurement is finished, and performing the same treatment on the gas in the waste gas collecting tank (11).
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| CN202110225901.0A CN113075290A (en) | 2021-03-01 | 2021-03-01 | Propionic acid concentration measuring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324569A (en) * | 2022-01-05 | 2022-04-12 | 森霸传感科技股份有限公司 | Gas detection device based on dot-matrix piezoelectric film sensor |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006269794A (en) * | 2005-03-24 | 2006-10-05 | Yamagata Casio Co Ltd | Nozzle exchange device and component-packaging apparatus |
| CN201680115U (en) * | 2010-04-14 | 2010-12-22 | 山东华联矿业股份有限公司 | Rapid pipeline maintenance device |
| CN201926602U (en) * | 2011-01-18 | 2011-08-10 | 长沙理工大学 | Simple propionic acid gas detection device |
| KR101175690B1 (en) * | 2011-02-15 | 2012-08-21 | 한국산업기술대학교산학협력단 | Laboratory apparatus with vacuum agitation defoaming for paste |
| CN102692399A (en) * | 2012-05-25 | 2012-09-26 | 四川大学 | Small multifunctional sample room for LIBS (laser-induced breakdown spectroscopy) |
| CN202939104U (en) * | 2012-11-22 | 2013-05-15 | 长沙理工大学 | Propionic acid gas static detection device |
| CN103245704A (en) * | 2013-05-02 | 2013-08-14 | 中国科学院合肥物质科学研究院 | Automatic electrode replacing device of online heavy metal analyzer |
| CN204142676U (en) * | 2014-09-02 | 2015-02-04 | 天津易景环境科技发展有限公司 | A kind of water body detection acidometer |
| CN204613223U (en) * | 2015-05-04 | 2015-09-02 | 武汉中科波谱技术有限公司 | A kind of automatic sampler |
| CN110763587A (en) * | 2019-12-13 | 2020-02-07 | 中国烟草总公司郑州烟草研究院 | Detection apparatus for multi-sample tobacco moisture adsorbs desorption performance |
| CN211187197U (en) * | 2019-11-12 | 2020-08-07 | 郑州大学第一附属医院 | Special device for activating blood coagulation time measurement |
| CN212133756U (en) * | 2020-07-02 | 2020-12-11 | 合肥创浦自控技术有限公司 | Anti-vibration device of elliptic gear flowmeter |
-
2021
- 2021-03-01 CN CN202110225901.0A patent/CN113075290A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006269794A (en) * | 2005-03-24 | 2006-10-05 | Yamagata Casio Co Ltd | Nozzle exchange device and component-packaging apparatus |
| CN201680115U (en) * | 2010-04-14 | 2010-12-22 | 山东华联矿业股份有限公司 | Rapid pipeline maintenance device |
| CN201926602U (en) * | 2011-01-18 | 2011-08-10 | 长沙理工大学 | Simple propionic acid gas detection device |
| KR101175690B1 (en) * | 2011-02-15 | 2012-08-21 | 한국산업기술대학교산학협력단 | Laboratory apparatus with vacuum agitation defoaming for paste |
| CN102692399A (en) * | 2012-05-25 | 2012-09-26 | 四川大学 | Small multifunctional sample room for LIBS (laser-induced breakdown spectroscopy) |
| CN202939104U (en) * | 2012-11-22 | 2013-05-15 | 长沙理工大学 | Propionic acid gas static detection device |
| CN103245704A (en) * | 2013-05-02 | 2013-08-14 | 中国科学院合肥物质科学研究院 | Automatic electrode replacing device of online heavy metal analyzer |
| CN204142676U (en) * | 2014-09-02 | 2015-02-04 | 天津易景环境科技发展有限公司 | A kind of water body detection acidometer |
| CN204613223U (en) * | 2015-05-04 | 2015-09-02 | 武汉中科波谱技术有限公司 | A kind of automatic sampler |
| CN211187197U (en) * | 2019-11-12 | 2020-08-07 | 郑州大学第一附属医院 | Special device for activating blood coagulation time measurement |
| CN110763587A (en) * | 2019-12-13 | 2020-02-07 | 中国烟草总公司郑州烟草研究院 | Detection apparatus for multi-sample tobacco moisture adsorbs desorption performance |
| CN212133756U (en) * | 2020-07-02 | 2020-12-11 | 合肥创浦自控技术有限公司 | Anti-vibration device of elliptic gear flowmeter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324569A (en) * | 2022-01-05 | 2022-04-12 | 森霸传感科技股份有限公司 | Gas detection device based on dot-matrix piezoelectric film sensor |
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