CN214097244U - Collection detection device of ammonia in atmosphere - Google Patents
Collection detection device of ammonia in atmosphere Download PDFInfo
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- CN214097244U CN214097244U CN202022955290.9U CN202022955290U CN214097244U CN 214097244 U CN214097244 U CN 214097244U CN 202022955290 U CN202022955290 U CN 202022955290U CN 214097244 U CN214097244 U CN 214097244U
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 130
- 238000000926 separation method Methods 0.000 claims abstract description 57
- 230000002572 peristaltic effect Effects 0.000 claims description 112
- 238000003860 storage Methods 0.000 claims description 51
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 11
- 239000012498 ultrapure water Substances 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002707 nanocrystalline material Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 68
- 239000007789 gas Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- 238000004255 ion exchange chromatography Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000019270 ammonium chloride Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- -1 ammonium ions Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000002159 nanocrystal Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 206010008479 Chest Pain Diseases 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 201000007100 Pharyngitis Diseases 0.000 description 1
- 206010038669 Respiratory arrest Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
An acquisition and detection device for ammonia in atmosphere relates to environmental monitoring equipment. The ion chromatograph solves the problems that the existing ion chromatograph is easy to cause pollution, and is not suitable for detection environments with crude conditions due to high manufacturing cost, slightly large volume and difficult carrying. The utility model discloses constitute by gas collection module, gas-liquid separation module, concentration detection module and temperature control module, gas collection module links to each other with the gas-liquid separation module, and the gas-liquid separation module links to each other with the concentration detection module, and temperature control module runs through the collection detection device of whole ammonia, controls the temperature of each module. The utility model discloses can gather the ammonia in the atmosphere to its concentration of accurate detection, and have characteristics such as easily carrying, easy operation, cost are lower, are suitable for the popularization, have using value.
Description
Technical Field
The utility model relates to an environmental monitoring equipment, concretely relates to collection detection device of ammonia in atmosphere.
Background
Ammonia is an essential gas in the atmosphere, has an irritating odor, and is the only alkaline gas therein. With the development of science and technology, different production and living modes are generated in aspects of industry, life and the like, more or less ammonia is generated, and the concentration of ammonia in the atmosphere is changed. From a macroscopic perspective, ammonia at abnormal concentrations can have an effect on global nitrogen circulation, neutralization of acid rain, and the like. From a microscopic perspective, high-concentration ammonia can affect respiratory tracts, and can cause symptoms such as sore throats, dyspnea, chest distress, short breath and the like, and if the ammonia enters blood, the ammonia can destroy the oxygen transport function of the blood, and even possibly cause sudden respiratory arrest in severe cases, so that the life is threatened. Ammonia is an atmospheric trace gas, and is difficult to obtain reliable data under general conditions, so that errors are easy to occur. At present, the national standard ammonia gas detection method uses a nano-reagent method, but the nano-reagent used in the method contains mercury, care is needed in the using process, the waste liquid treatment after the experiment also needs to be carried out according to the standard, and the mercury pollution is prevented in a cautious way. The nano reagent method not only is easy to cause pollution, but also can not be applied to online detection. The ion chromatography, another common method, is not suitable for the problem of detection environment with crude conditions due to the characteristics of expensive manufacturing cost, slightly large volume, difficult transportation and the like of the ion chromatograph, although the ion chromatography has high measurement precision, is easy to prepare, does not cause pollution and can be used together with an online detection method.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the existing Nashin's reagent method is not only easy to cause pollution, but also can not be applied to on-line detection; although the ion chromatography has high measurement precision, is easy to prepare, cannot cause pollution, and can be used together with an online detection method, the ion chromatography has the problems of high manufacturing cost, slightly large volume, difficult transportation and unsuitability for the detection environment with crude conditions, provides a device for collecting and detecting ammonia in the atmosphere, and has the following specific technical scheme for solving the problems:
the utility model relates to a collection detection device of ammonia in atmosphere, which comprises an air pipeline, a gas-liquid generator, a first gas pipeline, a second gas pipeline, a third gas pipeline, an emptying bottle, a dryer, an input air pump, a first peristaltic pipeline, a second peristaltic pipeline, a third peristaltic pipeline, a fourth peristaltic pipeline, a fifth peristaltic pipeline, a first peristaltic pump, a second peristaltic pump, a third peristaltic pump, a fourth peristaltic pump, a gas-liquid separation sample storage pipe, a gas-liquid mixing chamber, a detection electric guide head, an ultrapure water sample chamber, a waste liquid barrel, a sample chamber, an alternating current power supply, a conductivity meter, a temperature controller, a plurality of gas-liquid separation sample storage pipe placers, an automatic sample changer and a direct current power supply, wherein the lower end of the air pipeline is communicated with the upper end of a spiral pipe in the gas-liquid generator, the lower end of the spiral pipe is arranged at the lower part of the cavity of the gas-liquid generator, one end of the first gas pipeline is arranged at the upper end of the spiral gas-liquid generator, the other end of the second gas pipeline is arranged in the emptying bottle, one end of the second gas pipeline is arranged in the emptying bottle, the other end of the second gas pipeline is communicated with the input end of the dryer, one end of the third gas pipeline is communicated with the output end of the dryer, the air pump is arranged on the third gas pipeline, one end of the first peristaltic pipeline is communicated with the lower end of the gas-liquid generator, the other end of the first peristaltic pipeline is arranged in the middle of the sample storage pipe of the gas-liquid separation module, the first peristaltic pump is arranged on the first peristaltic pipeline, one end of the second peristaltic pipeline is communicated with the output end of the sample storage pipe of the gas-liquid separation module, the other end of the second peristaltic pipeline is communicated with the input end of the gas-liquid mixing chamber, the detection electric conducting head is arranged in the gas-liquid mixing chamber, two parallel coils of the detection electric conducting head are respectively connected with an alternating current power supply and the electric conducting instrument, one end of the third peristaltic pipeline is communicated with a pure water input port of the gas-liquid mixing chamber 10, the other end of the third peristaltic pipeline is arranged in the ultrapure water sample chamber, the second peristaltic pump is arranged on the third peristaltic pipeline, one end of the fourth peristaltic pipeline is communicated with a solution output port of the gas-liquid mixing chamber, the other end of the fourth peristaltic pipeline is arranged in the waste liquid barrel, the third peristaltic pump is arranged on the fourth peristaltic pipeline, one end of the fifth peristaltic pipeline is communicated with the lower end of the spiral gas-liquid generator, the other end of the fifth peristaltic pipeline is arranged in the sample chamber, and the fourth peristaltic pump is arranged on the fifth peristaltic pipeline;
the gas-liquid separation sample storage pipe consists of a semipermeable membrane, an extrusion slender spring, a telescopic pipe and a piston baffle plate, wherein the semipermeable membrane is arranged at the circle center of the upper end of the gas-liquid separation sample storage pipe;
the temperature controller consists of an electric fan, a resistance heater, a temperature sensor, a temperature regulator and a heat preservation cover, wherein the electric fan is embedded on the heat preservation layer, the resistance heater is arranged above the electric fan, a first electric wire of the electric fan and the resistance heater is connected with the temperature regulator, the temperature sensor is connected with the temperature regulator through a second electric wire, and the heat preservation cover covers the periphery of the temperature control device;
the gas-liquid separation sample storage pipe placer comprises a rotating column, an upper left connecting chain, an upper right connecting chain, a lower left connecting chain and a lower right connecting chain, wherein the gas-liquid separation sample storage pipes are uniformly arranged on the upper left connecting chain, the upper right connecting chain, the lower left connecting chain and the lower right connecting chain;
the automatic sample changer is characterized by comprising an upper insertion pipe, a lower insertion pipe, an upper fixing block, a lower fixing block, an upper connecting block, a lower connecting block, a supporting column and a sliding groove, wherein the upper insertion pipe is arranged between the output end of a gas-liquid separation sample storage pipe and a second peristaltic pipeline, the lower insertion pipe is arranged between a first peristaltic pipeline and the input end of the gas-liquid separation sample storage pipe, the gas-liquid separation sample storage pipe is fixed on the automatic sample changer through the upper fixing block, the upper connecting block, the lower fixing block and the lower connecting block, the left ends of the upper connecting block and the lower connecting block are connected with the upper fixing block and the lower fixing block, the right ends of the upper connecting block and the lower connecting block are clamped on the sliding groove, and the sliding groove 19-8 is formed in the supporting column 19-7;
the direct-current power supply is composed of a first wire, a second wire, a third wire, a fourth wire and a fifth wire, the first wire, the second wire, the third wire, the fourth wire and the fifth wire are connected in series, the first wire is connected with a first peristaltic pump, a second peristaltic pump, a third peristaltic pump and a fourth peristaltic pump, the second wire is connected with a plurality of gas-liquid separation sample storage tube placing devices and automatic sample changers, the third wire is connected with a temperature controller, the fourth wire is connected with an input air pump, and the fifth wire is connected with a conductivity meter.
The utility model discloses a collection detection device of ammonia in atmosphere has following advantage: the portable sampling device has the advantages of simple integral structure, easy assembly and disassembly, convenient carrying, convenient cleaning and capability of supporting sampling work in harsh sampling conditions such as the field and the like; continuous sampling is supported, data are continuous and uninterrupted, and comparison is convenient; thirdly, long-time manual operation is not needed, time and labor are saved, and only the medicines are matched manually, and data are exported at intervals; compared with methods such as ion chromatography and the like, the whole instrument cost, the cost of used chemical agents, the labor cost and the instrument maintenance cost are low; the device adopts secondary concentration amplification, improves the accuracy of ammonia gas detection with extremely low concentration, has stability, reliability and scientificity, and can effectively reduce errors by making a standard curve in the aspect of data processing; adopting methods of collecting ammonia gas samples in a concentrating manner, adding ammonium chloride solution with standard concentration to improve the background value concentration of the samples, releasing ammonia gas by a chemical method and the like, reducing the environmental resistance in the sampling process, and having strong environmental interference resistance; and seventhly, an electric conduction head used in the concentration detection module adopts the principle of an induction coil, does not need to be stored finely, does not need to be activated before use, and is more convenient compared with an ammonia gas sensitive electrode.
Drawings
Fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a schematic structural diagram of a gas-liquid generator in fig. 1, fig. 3 is a schematic structural diagram of a gas-liquid separation sample storage tube in fig. 1, fig. 4 is a schematic structural diagram of a detection probe in fig. 1, fig. 5 is a schematic structural diagram of an automatic sample changer of the gas-liquid separation sample storage tube in fig. 1, fig. 6 is a schematic structural diagram of the automatic sample changer in fig. 1, fig. 7 is a schematic structural diagram of a temperature controller in fig. 1, and fig. 8 is a block flow diagram of the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1, 2, 3, and 4. The embodiment comprises an air pipeline 1, a gas-liquid generator 2, a first gas pipeline 3-1, a second gas pipeline 3-2, a third gas pipeline 3-3, an emptying bottle 4, a dryer 5, an input air pump 6, a first peristaltic pipeline 7-1, a second peristaltic pipeline 7-2, a third peristaltic pipeline 7-3, a fourth peristaltic pipeline 7-4, a fifth peristaltic pipeline 7-5, a first peristaltic pump 8-1, a second peristaltic pump 8-2, a third peristaltic pump 8-3, a fourth peristaltic pump 8-4, a gas-liquid separation sample storage pipe 9, a gas-liquid mixing chamber 10, a detection conductance head 11, an ultrapure water sample chamber 12, a waste liquid barrel 13, a sample chamber 14, an alternating current power supply 15, a conductance meter 16, a temperature controller 17, a plurality of gas-liquid separation sample storage pipe placers 18, an automatic sample changer 19 and a direct current power supply 20, the lower end of an air pipeline 1 is communicated with the upper end of a spiral pipe 2-1 in a gas-liquid generator 2, the lower end of the spiral pipe 2-1 is arranged at the lower part of a cavity of the gas-liquid generator 2, one end of a first gas pipeline 3-1 is arranged at the upper end of the spiral gas-liquid generator 2, the other end of the first gas pipeline is arranged in an emptying bottle 4, one end of a second gas pipeline 3-2 is arranged in the emptying bottle 4, the other end of the second gas pipeline 3-2 is communicated with the input end of a dryer 5, one end of a third gas pipeline 3-3 is communicated with the output end of the dryer 5, an air pump 6 is arranged on the third gas pipeline 3-3, one end of a first peristaltic pipeline 7-1 is communicated with the lower end of the gas-liquid generator 2, the other end of the first peristaltic pipeline 7-1 is arranged in the middle part of a sample storage pipe 9 of a gas-liquid separation module, a first peristaltic pump 8-1 is arranged on the first pipeline 7-1, one end of a second peristaltic pipeline 7-2 is communicated with the output end of a sample storage pipe 9 of the gas-liquid separation module, the other end of the second peristaltic pipeline 7-2 is communicated with the input end of a gas-liquid mixing chamber 10, a detection electric conduction head 11 is arranged in the gas-liquid mixing chamber 10, two parallel coils of the detection electric conduction head are respectively connected with an alternating current power supply 15 and an electric conduction instrument 16, one end of a third peristaltic pipeline 7-3 is communicated with a pure water input port of the gas-liquid mixing chamber 10, the other end of the third peristaltic pipeline 7-3 is arranged in an ultrapure water sample chamber 12, a second peristaltic pump 8-2 is arranged on the third peristaltic pipeline 7-3, one end of a fourth peristaltic pipeline 7-4 is communicated with a solution output port of the gas-liquid mixing chamber 10, the other end of the fourth peristaltic pipeline 7-4 is arranged in a waste liquid barrel 13, and the third peristaltic pump 8-3 is arranged on the fourth peristaltic pipeline 7-4, one end of a fifth peristaltic pipeline 7-5 is communicated with the lower end of the spiral gas-liquid generator 2, the other end of the fifth peristaltic pipeline 7-5 is arranged in the sample chamber 14, and a fourth peristaltic pump 8-4 is arranged on the fifth peristaltic pipeline 7-5;
the gas-liquid separation sample storage pipe 9 consists of a semipermeable membrane 9-1, an extrusion fine spring 9-2, a telescopic pipe 9-3 and a piston baffle plate 9-4, wherein the semipermeable membrane 9-1 is arranged at the center of a circle at the upper end of the gas-liquid separation sample storage pipe 9, the piston baffle plate 9-4 is arranged in the middle of the cavity of the gas-liquid separation sample storage pipe 9, the extrusion fine spring 9-2 and the telescopic pipe 9-3 are arranged below the piston baffle plate 9-4, the extrusion fine spring 9-2 surrounds the telescopic pipe 9-3, and the lower part of the gas-liquid separation sample storage pipe 9 is vacant;
the temperature controller 17 consists of an electric fan 17-1, a resistance heater 17-2, a temperature sensor 17-3, a temperature regulator 17-4 and a heat preservation cover 17-5, wherein the electric fan 17-1 is embedded on the heat preservation layer 17-5, the resistance heater 17-2 is arranged above the electric fan 17-1, the electric fan 17-1 and a first electric wire 17-6 of the resistance heater 17-2 are connected with the temperature regulator 17-4, the temperature sensor 17-3 is connected with the temperature regulator 17-4 through a second electric wire 17-7, and the heat preservation cover 17-5 covers the periphery of the temperature control device;
the gas-liquid separation sample storage tube placer 18 consists of a rotating column 18-1, an upper left connecting chain 18-2, an upper right connecting chain 18-3, a lower left connecting chain 18-4 and a lower right connecting chain 18-5, a plurality of gas-liquid separation sample storage tubes 9 are uniformly arranged on the upper left connecting chain 18-2, the upper right connecting chain 18-3, the lower left connecting chain 18-4 and the lower right connecting chain 18-5, the rear ends of the upper left connecting chain 18-2, the upper right connecting chain 18-3, the lower left connecting chain 18-4 and the lower right connecting chain 18-5 are connected with the upper end and the lower end of the rotating column 18-1, and the rotating column 18-1 is connected with a power supply 20;
the automatic sample changer 19 consists of an upper insertion tube 19-1, a lower insertion tube 19-5, an upper fixed block 19-2, a lower fixed block 19-4, an upper connecting block 19-3, a lower connecting block 19-6, a supporting column 19-7 and a sliding groove 19-8, wherein the upper insertion tube 19-1 is arranged between the output end of the gas-liquid separation sample storage tube 9 and the second peristaltic pipeline 7-2, the lower insertion tube 19-5 is arranged between the first peristaltic pipeline 7-1 and the input end of the gas-liquid separation sample storage tube 9, the gas-liquid separation sample storage tube 9 is fixed on the automatic sample changer 19 through the upper fixed block 19-2, the upper connecting block 19-3, the lower fixed block 19-4 and the lower connecting block 19-6, the left ends of the upper connecting block 19-3 and the lower connecting block 19-6 are connected with the upper fixed block 19-2 and the lower fixed block 19-4, the right ends of the upper connecting block 19-3 and the lower connecting block 19-6 are clamped on the sliding grooves 19-8, and the sliding grooves 19-8 are formed in the supporting columns 19-7;
the direct current power supply 20 consists of a first lead 20-1, a second lead 20-2, a third lead 20-3, a fourth lead 20-4 and a fifth lead 20-5, the device comprises a first lead 20-1, a second lead 20-2, a third lead 20-3, a fourth lead 20-4 and a fifth lead 20-5 which are connected in series, wherein the first lead 20-1 is connected with a first peristaltic pump 8-1, a second peristaltic pump 8-2, a third peristaltic pump 8-3 and a fourth peristaltic pump 8-4, the second lead 20-2 is connected with a plurality of gas-liquid separation sample storage tube placers 18 and an automatic sample changer 19, the third lead 20-3 is connected with a temperature controller 17, the fourth lead 20-4 is connected with an input air pump 6, and the fifth lead 20-5 is connected with a conductivity meter 16.
The second embodiment is as follows: this embodiment will be described with reference to fig. 1 and 4. The detection conductive head 11 described in this embodiment is formed by embedding a first parallel coil 11-1-1 and a second parallel coil 11-1-2 in an insulating tube 11-1, the number of turns of the first parallel coil 11-1-1 is the same as that of the second parallel coil 11-1-2, an iron-nickel alloy, a nanocrystal or a substance similar to the nanocrystal or the material thereof is used as an inner core, an insulating layer is sleeved outside, and the insulating tube 11-1 is made of alumina ceramics, quartz or other substances with high insulation and stable chemical properties.
The third concrete implementation mode: this embodiment will be described with reference to fig. 1 and 6. The temperature controller 17 described in this embodiment is composed of an electric fan 17-1, a resistance heater 17-2, and a temperature sensor 17-3, which are connected to a temperature regulator 17-4 through wires 17-6 and 17-7, respectively, and is externally wrapped with a heat insulating layer 17-5 having air holes on one surface.
The fourth concrete implementation mode: this embodiment will be described with reference to fig. 1 and 2. The spiral pipes 2-1 according to the present embodiment are arranged in the longitudinal direction.
The fifth concrete implementation mode: this embodiment is described in conjunction with fig. 1. The absorption liquid in the sample chamber 14 of the present embodiment is a mixture of sulfuric acid and ammonium chloride solutions, and the ratio is 1: 0.01 to 0.2.
The sixth specific implementation mode: this embodiment is described in conjunction with fig. 1. The height of the liquid level of the absorption liquid in the cavity 2-2 of the gas-liquid generator 2 is between one half and two thirds of the height of the gas-liquid generator 2.
The seventh embodiment: this embodiment will be described with reference to fig. 1 and 3. The gas-liquid separation sample storage tube 9 according to the present embodiment has a cylindrical structure.
The specific implementation mode is eight: this embodiment will be described with reference to fig. 1 and 5. The ac power supply 15 and the ac wire (first parallel coil) 11-1-1 according to the present embodiment form a closed circuit with the ac power supply 15 and the ac wire (first parallel coil) 11-1-1.
The specific implementation method nine: this embodiment will be described with reference to fig. 1 and 5. The power supply system according to the present embodiment is configured by combining an ac power supply and a dc power supply, wherein the ac power supply 15 is responsible for generating an induced electric field, and the dc power supply 20 is responsible for supplying power for operating the entire apparatus.
The operation process of the device is as follows:
before the device is operated, the sulfuric acid solution and the ammonium chloride solution in the sample chamber 14 are mixed by a fourth peristaltic pump 8-4 according to the ratio of 1: mixing at a ratio of 0.01-0.2. The mixed absorption liquid is guided into the gas-liquid generator 2 through a fifth peristaltic pipeline 7-5; air enters a spiral tube 2-1 in a gas-liquid generator 2 from an air pipeline 1 and is in full contact with absorption liquid, the absorption liquid further absorbs ammonia in the air, then the air overflows from the lower end of the spiral tube 2-1 and enters a cavity of the gas-liquid generator 2, the gas-liquid generator 2 is discharged from a first gas pipeline 3-1 at the upper end and enters an emptying bottle 4, the influence of the absorption liquid splashed due to the overhigh power of an air pump 6 or the liquid level of the absorption liquid in the gas-liquid generator 2 on the subsequent steps is avoided, the air enters a dryer 5 through a second gas pipeline 3-2 and is dried, and then the air is discharged into the air through a third gas pipeline 3-3 by the air pump 6; the first peristaltic pump 8-1 provides power, absorption liquid absorbing ammonia in the atmosphere enters the middle part of the gas-liquid separation sample storage tube 9 from the first peristaltic pipeline 7-1, along with the absorption liquid is conveyed into the gas-liquid separation sample storage tube 9 from the first peristaltic pipeline 7-1, the piston partition plate 9-4 moves towards the lower end to extrude the fine spring 9-2 and the extension tube 9-3, meanwhile, the absorption liquid reacts with sodium hydroxide solution to generate ammonia gas, the generated ammonia gas enters the second peristaltic pipeline 7-2 through the semipermeable membrane 9-1 through which only gas can pass and is conveyed into the gas-liquid mixing chamber 10, the ultrapure water is stored in the sample chamber 12, the second peristaltic pump 8-2 provides power, the ultrapure water enters the gas-liquid mixing chamber 10 from the third peristaltic pipeline 7-3, and then the ammonia gas is combined with the ultrapure water, the solution in the gas-liquid mixing chamber 10 contains ammonium ions, standing is carried out for 1-2 minutes, the conductivity of the solution changes at the moment, the detection conductivity head 11 of the gas-liquid mixing chamber 10 measures the conductivity of the solution, the detected data is transmitted to the conductivity meter 16 to be stored and recorded, the stored and recorded data is processed by a computer, after the conductivity meter 11 reads the stored data, the solution in the gas-liquid mixing chamber 10 is powered by a third peristaltic pump 8-3 and is discharged into a waste liquid barrel 13 through a fourth peristaltic pipeline-4, after the waste liquid is completely discharged, the next group of sampling can be restarted, and the process is circulated.
The temperature of the gas-liquid separation module and the temperature of the concentration detection module are always regulated by the temperature control module, so that the ammonia gas is completely separated out or completely fused with the ultrapure water. Moreover, the temperature is proper and constant, so that the conductivity of the mixed liquor can be measured, and the fluctuation of the conductivity can be in a concentration-conductivity linear correlation range.
The utility model discloses a temperature control module 17 has run through wholly, especially in gas-liquid separation module 9 and concentration detection module (gas-liquid mixing chamber 10, detection conductance head 11, alternating current power supply 15 and conductance appearance 16). The temperature control module 17 regulates the gas-liquid separation module 9 to make the ammonia gas overflow completely. The temperature control module 17 adjusts the temperature of the concentration detection module, ammonia is combined with ultrapure water, ammonium ions and monohydrate ammonia exist in the water, the temperature is suitable and kept constant, the dissociation constant of the ammonia is ensured to be unchanged, and the conductivity of the mixed liquid is controlled to be in a concentration-conductivity linear correlation range. The fan 17-1 is embedded into a heat preservation cover 17-5 with air holes, so that ventilation and heat dissipation are facilitated, the resistance heater 17-2 is positioned above the fan 17-1 in parallel, the temperature sensor 17-3 is arranged in the module, the temperature in the module is monitored, when the temperature of the module needs to be changed, a detection signal is transmitted to the temperature regulator 17-4 through the temperature sensor, and then the temperature regulator 17-4 controls the resistance heater 17-2 and the fan 17-1 to regulate the temperature.
The utility model discloses an automatic change gas-liquid separation sample storage pipe device 9, adopt a plurality of gas-liquid separation sample storage pipe placers 18 of machinery, automatic sample changer 19 when changing the sample upper fixed block 19-2 and lower fixed block 19-4 respectively in sliding tray 19-8 middle and upper sliding make first wriggling pipeline 7-1 and second wriggling pipeline 7-2 and upper intubate 19-1 and lower intubate 19-5 break away from the gas-liquid separation sample storage pipe 9 of having adopted the sample, column 18-1 is rotatory at this moment, make gas-liquid separation sample storage pipe 9 of having adopted the sample break away from the fixed position of automatic sample changer 19, take new gas-liquid separation sample storage pipe 9 to the fixed position simultaneously, upper fixed block 19-2 and lower fixed block 19-4 slide downwards upwards respectively in sliding tray 19-8 again and make upper intubate wriggling 19-1 and lower intubate 19-5 and second pipeline 7-2 and first pipeline 7-1 Reconnect and enter new sample. The sample changing process is one-time, and the connecting chain can be connected with a plurality of groups of gas-liquid separation sample storage pipe devices 9 for continuous sampling.
In the operation process of the device, except that the detection electric conduction head 11 uses the alternating current power supply 15, the peristaltic pump 8-1, the peristaltic pump 8-2, the peristaltic pump 8-3, the peristaltic pump 8-4, the electric conduction instrument 16, the temperature control module 17, the mechanical gas-liquid separation sample tube placer 18, the automatic sample changing module 19 and the like which are used in the operation process all use a 220v direct current power supply 20 to support direct power supply or storage battery power supply.
The utility model discloses do not need to limit the utility model discloses, wherein the structural connection mode of each part all can change, all be based on the utility model discloses any modifications such as moist look, improvement, equal transform that technical scheme's principle goes on all should be included within the protection scope.
Claims (7)
1. The utility model provides an acquisition and detection device of ammonia in atmosphere, it comprises air pipeline, gas-liquid generator, first gas pipeline, the second gas pipeline, the third gas pipeline, the evacuation bottle, the desicator, input air pump, first peristaltic pipeline, the second peristaltic pipeline, the third peristaltic pipeline, the fourth peristaltic pipeline, the fifth peristaltic pipeline, first peristaltic pump, the second peristaltic pump, the third peristaltic pump, the fourth peristaltic pump, gas-liquid separation sample storage pipe, the gas-liquid mixing room, detect electric lead, ultrapure water sample room, waste liquid bucket, sample room, alternating current power supply, the conductivity meter, temperature controller, a plurality of gas-liquid separation sample storage pipe placers, automatic sample changer and DC power supply, its characterized in that: the lower end of the air pipeline is communicated with the upper end of a spiral pipe in the gas-liquid generator, the lower end of the spiral pipe is arranged at the lower part of a cavity of the gas-liquid generator, one end of a first gas pipeline is arranged at the upper end of the spiral gas-liquid generator, the other end of the first gas pipeline is arranged in an emptying bottle, one end of a second gas pipeline is arranged in the emptying bottle, the other end of the second gas pipeline is communicated with the input end of a dryer, one end of a third gas pipeline is communicated with the output end of the dryer, an air pump is arranged on the third gas pipeline, one end of the first peristaltic pipeline is communicated with the lower end of the gas-liquid generator, the other end of the first peristaltic pipeline is arranged in the middle of a sample storage pipe of the gas-liquid separation module, the first peristaltic pump is arranged on the first peristaltic pipeline, one end of the second peristaltic pipeline is communicated with the output end of the sample storage pipe of the gas-liquid separation module, and the other end of the second peristaltic pipeline is communicated with the input end of the gas-liquid mixing chamber, the detection electric lead is arranged in the gas-liquid mixing chamber, two parallel coils of the detection electric lead are respectively connected with an alternating current power supply and an electric conductivity meter, one end of a third peristaltic pipeline is communicated with a pure water input port of the gas-liquid mixing chamber, the other end of the third peristaltic pipeline is arranged in an ultrapure water sample chamber, a second peristaltic pump is arranged on the third peristaltic pipeline, one end of a fourth peristaltic pipeline is communicated with a solution output port of the gas-liquid mixing chamber, the other end of the fourth peristaltic pipeline is arranged in a waste liquid barrel, the third peristaltic pump is arranged on the fourth peristaltic pipeline, one end of a fifth peristaltic pipeline is communicated with the lower end of a spiral gas-liquid generator, the other end of the fifth peristaltic pipeline is arranged in the sample chamber, and the fourth peristaltic pump is arranged on the fifth peristaltic pipeline;
the gas-liquid separation sample storage pipe consists of a semipermeable membrane, an extrusion slender spring, a telescopic pipe and a piston baffle plate, wherein the semipermeable membrane is arranged at the circle center of the upper end of the gas-liquid separation sample storage pipe;
the temperature controller consists of an electric fan, a resistance heater, a temperature sensor, a temperature regulator and a heat preservation cover, wherein the electric fan is embedded on the heat preservation layer, the resistance heater is arranged above the electric fan, a first electric wire of the electric fan and the resistance heater is connected with the temperature regulator, the temperature sensor is connected with the temperature regulator through a second electric wire, and the heat preservation cover covers the periphery of the temperature control device;
the gas-liquid separation sample storage pipe placer comprises a rotating column, an upper left connecting chain, an upper right connecting chain, a lower left connecting chain and a lower right connecting chain, wherein the gas-liquid separation sample storage pipes are uniformly arranged on the upper left connecting chain, the upper right connecting chain, the lower left connecting chain and the lower right connecting chain;
the automatic sample changer is characterized by comprising an upper insertion pipe, a lower insertion pipe, an upper fixing block, a lower fixing block, an upper connecting block, a lower connecting block, a supporting column and a sliding groove, wherein the upper insertion pipe is arranged between the output end of a gas-liquid separation sample storage pipe and a second peristaltic pipeline, the lower insertion pipe is arranged between a first peristaltic pipeline and the input end of the gas-liquid separation sample storage pipe, the gas-liquid separation sample storage pipe is fixed on the automatic sample changer by the upper fixing block, the upper connecting block, the lower fixing block and the lower connecting block, the left ends of the upper connecting block and the lower connecting block are connected with the upper fixing block and the lower fixing block, the right ends of the upper connecting block and the lower connecting block are clamped on the sliding groove, and the sliding groove is formed in the supporting column;
the direct-current power supply is composed of a first wire, a second wire, a third wire, a fourth wire and a fifth wire, the first wire, the second wire, the third wire, the fourth wire and the fifth wire are connected in series, the first wire is connected with a first peristaltic pump, a second peristaltic pump, a third peristaltic pump and a fourth peristaltic pump, the second wire is connected with a plurality of gas-liquid separation sample storage tube placing devices and automatic sample changers, the third wire is connected with a temperature controller, the fourth wire is connected with an input air pump, and the fifth wire is connected with a conductivity meter.
2. The device for collecting and detecting ammonia in the atmosphere according to claim 1, characterized in that: the detection electric guide head is composed of a first parallel coil and a second parallel coil embedded in an insulating tube, and the number of turns of the first parallel coil is the same as that of the second parallel coil.
3. The device for collecting and detecting ammonia in the atmosphere according to claim 1, characterized in that: the height of the liquid level of the absorption liquid in the cavity of the gas-liquid generator is between one half and two thirds of that of the gas-liquid generator.
4. The device for collecting and detecting ammonia in the atmosphere according to claim 1, characterized in that: the spiral pipe is arranged longitudinally.
5. The device for collecting and detecting ammonia in the atmosphere according to claim 1, characterized in that: the gas-liquid separation sample storage pipe is of a cylindrical structure.
6. The device for collecting and detecting ammonia in the atmosphere according to claim 2, characterized in that: the inner core of the detection electric guide head is made of iron-nickel alloy or nanocrystalline materials, the insulating layer is sleeved outside the inner core, and the insulating tube is made of alumina ceramics or quartz materials.
7. The device for collecting and detecting ammonia in the atmosphere according to claim 1, characterized in that: the power supply is composed of an alternating current power supply and a direct current power supply, wherein the alternating current power supply and the conducting wire form a closed loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022955290.9U CN214097244U (en) | 2020-12-09 | 2020-12-09 | Collection detection device of ammonia in atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022955290.9U CN214097244U (en) | 2020-12-09 | 2020-12-09 | Collection detection device of ammonia in atmosphere |
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|---|---|
| CN214097244U true CN214097244U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022955290.9U Withdrawn - After Issue CN214097244U (en) | 2020-12-09 | 2020-12-09 | Collection detection device of ammonia in atmosphere |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557461A (en) * | 2020-12-09 | 2021-03-26 | 中国科学院东北地理与农业生态研究所 | Collection detection device of ammonia in atmosphere |
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2020
- 2020-12-09 CN CN202022955290.9U patent/CN214097244U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557461A (en) * | 2020-12-09 | 2021-03-26 | 中国科学院东北地理与农业生态研究所 | Collection detection device of ammonia in atmosphere |
| CN112557461B (en) * | 2020-12-09 | 2024-04-19 | 中国科学院东北地理与农业生态研究所 | Acquisition and detection device for ammonia in atmosphere |
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