CN219978215U - Automatic azotometer - Google Patents
Automatic azotometer Download PDFInfo
- Publication number
- CN219978215U CN219978215U CN202320741255.8U CN202320741255U CN219978215U CN 219978215 U CN219978215 U CN 219978215U CN 202320741255 U CN202320741255 U CN 202320741255U CN 219978215 U CN219978215 U CN 219978215U
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- CN
- China
- Prior art keywords
- bottle
- evaporation
- pipe
- sealing
- heating device
- Prior art date
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- 238000001704 evaporation Methods 0.000 claims abstract description 34
- 230000008020 evaporation Effects 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 18
- 239000003513 alkali Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 25
- 239000007921 spray Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 13
- 238000004880 explosion Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of azotometers, in particular to an automatic azotometer which comprises an evaporation bottle, a heating device, an alkali liquor bottle, an acid liquor bottle, a buffer tank and an absorption bottle; the heating device is arranged at the bottom end of the evaporation bottle, and the alkali liquor bottle and the acid liquor bottle are respectively arranged above the evaporation bottle and the absorption bottle; the inside slip of buffer tank is provided with the balancing weight, and the bottom of balancing weight is provided with sealed plug, and the upper end of balancing weight is fixed with the link, and the bottom mounting of link has the rack, installs temperature regulation knob through the pivot rotation on the heating device, is fixed with the gear in the pivot. According to the utility model, when the ammonia gas generation speed is greater than the absorption speed, the heating temperature can be automatically regulated down, so that explosion caused by high-pressure gas is avoided, and the safety of test work is improved.
Description
Technical Field
The utility model relates to the technical field of azotometers, in particular to an automatic azotometer.
Background
The determination of total nitrogen/protein content is widely applied to detection of dairy products, foods, animal feeds, grains, fertilizers, tobacco, plants and other products, the traditional detection means is a Kjeldahl nitrogen determination method, which has been implemented for many years as an industrial standard, but the requirements of current detection development are difficult to be met due to the use of corrosive acid and alkali, complex operation steps, long time consumption and serious environmental pollution. Specifically, organic nitrogen is converted into inorganic ammonium salt by digesting a sample with concentrated sulfuric acid under the condition of a catalyst, then the ammonium salt is converted into ammonia under the alkaline condition, the ammonia is distilled along with water vapor and is absorbed by excessive acid liquid, and then standard acid titration is carried out, so that the nitrogen content in the sample is calculated, namely, the main detection process is digestion, distillation and titration.
When the generation speed of ammonia is greater than the absorption speed, the pressure of the gas in the evaporation bottle is overlarge, and when the pressure exceeds the maximum bearing pressure value of the evaporation bottle or the pipeline, explosion is generated, so that the safety of test work is reduced.
Disclosure of Invention
The utility model aims at solving the technical problems in the background technology and provides an automatic azotometer.
The technical scheme of the utility model is as follows: an automatic azotometer comprises an evaporation bottle, a heating device, an alkali liquor bottle, an acid liquor bottle, a buffer tank and an absorption bottle; the heating device is arranged at the bottom end of the evaporation bottle, the bottom end of the heating device is provided with a plurality of supporting legs, the alkali liquor bottle and the acid liquor bottle are respectively arranged above the evaporation bottle and the absorption bottle, a liquid inlet pipe A is connected between the alkali liquor bottle and the evaporation bottle, a liquid inlet pipe B is connected between the acid liquor bottle and the absorption bottle, a valve A and a valve B are respectively arranged on the liquid inlet pipe A and the liquid inlet pipe B, an exhaust pipe A is connected between the bottom end of the evaporation bottle and the bottom end of the buffer tank, an exhaust pipe B is connected between the bottom end of the buffer tank and the absorption bottle, the middle part of the exhaust pipe B is in a spiral structure, a spiral cooling pipe is sleeved at the middle part of the exhaust pipe B, both ends of the spiral cooling pipe are of a sealed structure, a spiral gas channel is formed between the spiral cooling pipe and the middle part of the exhaust pipe B, and both ends of the spiral cooling pipe are respectively communicated with a cold air inlet pipe and a cold air exhaust pipe; the inside slip of buffer tank is provided with the balancing weight, and the bottom of balancing weight is provided with sealed plug, and the upper end of balancing weight is fixed with the link, and the bottom mounting of link has the rack, installs temperature regulation knob through the pivot rotation on the heating device, is fixed with the gear in the pivot, gear and rack engagement.
Preferably, the evaporation bottle upper end is provided with the sealed bottle lid, installs agitating unit on the sealed bottle lid, and agitating unit includes driving motor, installation axle and stirring vane, and the installation axle rotates the bottom of installing at the sealed bottle lid, and stirring vane fixes on the installation axle, and driving motor fixed mounting is covered on the sealed bottle and its output shaft is connected with the installation axle.
Preferably, the evaporation bottle is internally provided with an annular spray nozzle, the inner side and the outer side of the annular spray nozzle are respectively provided with a plurality of spray holes, the annular spray nozzle is vertically connected with a water delivery pipe, the water delivery pipe movably penetrates through the sealing bottle cap, the two sides of the interior of the evaporation bottle are respectively provided with a threaded rod and a guide sliding rod, the annular spray nozzle is arranged on the guide sliding rod in a sliding manner, the annular spray nozzle is in threaded connection with the threaded rod, the sealing bottle cap is provided with a servo motor, and an output shaft of the servo motor is connected with the threaded rod.
Preferably, transparent observation glass is arranged on the alkali liquor bottle and the acid liquor bottle, and scales are arranged on the transparent observation glass.
Preferably, the lateral part fixedly connected with sliding sleeve of evaporation bottle, link sliding arrangement is on the sliding sleeve.
Preferably, a sealing ring is arranged on the periphery of the water delivery pipe, and the sealing ring is fixed on the sealing bottle cover.
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: when the ammonia production speed is greater than the absorption speed, the air pressure increase promotes the balancing weight and upwards moves this moment, and the balancing weight has driven link and rack again and has moved upwards, and the rack drives gear rotation at the removal in-process, and then drives temperature regulation knob and rotate to but automatic heating temperature who reduces heating device reduces the production speed of ammonia, avoids the explosion that high pressure and arouses, has improved the security of test work.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic diagram of a spiral cooling tube according to the present utility model.
Reference numerals: 1. an evaporation bottle; 2. a heating device; 3. an alkali liquor bottle; 4. acid liquor bottles; 5. a buffer tank; 6. a spiral cooling tube; 7. sealing the bottle cap; 8. an absorption bottle; 9. a counterweight; 10. sealing the rubber plug; 11. a support leg; 121. a driving motor; 122. a mounting shaft; 123. stirring blades; 13. an annular nozzle; 141. a valve A; 142. a valve B; 15. transparent observation glass; 16. a scale; 17. a water pipe; 181. a servo motor; 182. a threaded rod; 183. a guide slide bar; 19. a temperature adjusting knob; 191. a rotating shaft; 20. a rack; 21. a gear; 22. a connecting frame; 231. a liquid inlet pipe A; 232. an exhaust pipe A; 233. an exhaust pipe B; 234. a liquid inlet pipe B; 235. a cold air inlet pipe; 236. a cold air exhaust pipe; 24. a seal ring; 25. and a sliding sleeve.
Detailed Description
As shown in fig. 1-2, the automatic azotometer provided by the utility model comprises an evaporation bottle 1, a heating device 2, an alkali liquor bottle 3, an acid liquor bottle 4, a buffer tank 5 and an absorption bottle 8; the heating device 2 is arranged at the bottom end of the evaporation bottle 1, a plurality of supporting legs 11 are arranged at the bottom end of the heating device 2, the alkali liquor bottle 3 and the acid liquor bottle 4 are respectively arranged above the evaporation bottle 1 and the absorption bottle 8, transparent observation glass 15 is arranged on the alkali liquor bottle 3 and the acid liquor bottle 4, scales 16 are arranged on the transparent observation glass 15, a liquid inlet pipe A231 is connected between the alkali liquor bottle 3 and the evaporation bottle 1, a liquid inlet pipe B234 is connected between the acid liquor bottle 4 and the absorption bottle 8, a valve A141 and a valve B142 are respectively arranged on the liquid inlet pipe A231 and the liquid inlet pipe B234, an exhaust pipe A232 is connected between the evaporation bottle 1 and the bottom end of the buffer tank 5, an exhaust pipe B233 is connected between the bottom end of the buffer tank 5 and the absorption bottle 8, the middle part of the exhaust pipe B233 is in a spiral structure, a spiral cooling pipe 6 is sleeved at the middle part of the exhaust pipe B233, both ends of the spiral cooling pipe 6 are in a sealed structure, a spiral gas channel is formed between the spiral cooling pipe 6 and the middle part of the exhaust pipe B233, and both ends of the spiral cooling pipe 6 are respectively communicated with a cold gas inlet pipe 235 and an exhaust pipe 236; the inside slip of buffer tank 5 is provided with balancing weight 9, and balancing weight 9's bottom is provided with sealed plug 10, and balancing weight 9's upper end is fixed with link 22, and evaporation bottle 1's lateral part fixedly connected with sliding sleeve 25, link 22 slip setting are on sliding sleeve 25, and link 22's bottom mounting has rack 20, and heating device 2 is last to rotate through pivot 191 and install temperature regulation knob 19, is fixed with gear 21 in the pivot 191, and gear 21 meshes with rack 20.
The upper end of the evaporation bottle 1 is provided with a sealing bottle cap 7, the sealing bottle cap 7 is provided with a stirring device, the stirring device comprises a driving motor 121, a mounting shaft 122 and stirring blades 123, the mounting shaft 122 is rotatably arranged at the bottom end of the sealing bottle cap 7, the stirring blades 123 are fixed on the mounting shaft 122, the driving motor 121 is fixedly arranged on the sealing bottle cap 7, and an output shaft of the driving motor is connected with the mounting shaft 122; the driving motor 121 is started to operate to drive the stirring blade 123 to rotate, so that the mixing speed of the test sample and the lye can be accelerated.
The evaporation bottle 1 is internally provided with an annular spray head 13, the inner side and the outer side of the annular spray head 13 are respectively provided with a plurality of spray holes, the annular spray head 13 is vertically connected with a water pipe 17, the water pipe 17 movably penetrates through the sealing bottle cap 7, the periphery of the water pipe 17 is provided with a sealing ring 24, the sealing ring 24 is fixed on the sealing bottle cap 7, the two sides of the interior of the evaporation bottle 1 are respectively provided with a threaded rod 182 and a guide sliding rod 183, the annular spray head 13 is arranged on the guide sliding rod 183 in a sliding manner, the annular spray head 13 is in threaded connection with the threaded rod 182, the sealing bottle cap 7 is provided with a servo motor 181, and an output shaft of the servo motor 181 is connected with the threaded rod 182; the servo motor 181 is started to work so as to drive the threaded rod 182 to rotate forward and backward, thereby driving the annular nozzle 13 to move up and down, and further realizing the cleaning work of the inside of the evaporation bottle 1.
The working principle of the utility model is as follows: when the ammonia gas generating speed is greater than the absorbing speed (the nitrogen fixing process and the operation method are not described in detail herein), the air pressure is increased to push the balancing weight 9 to move upwards, the balancing weight 9 drives the connecting frame 22 and the rack 20 to move upwards, the rack 20 drives the gear 21 to rotate in the moving process, and then drives the temperature adjusting knob 19 to rotate, so that the heating temperature of the heating device 2 can be automatically adjusted, the generating speed of the ammonia gas is reduced, explosion caused by high pressure is avoided, and the safety of test work is improved.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (6)
1. An automatic azotometer is characterized by comprising an evaporation bottle (1), a heating device (2), an alkali liquor bottle (3), an acid liquor bottle (4), a buffer tank (5) and an absorption bottle (8);
the heating device (2) is arranged at the bottom end of the evaporation bottle (1), a plurality of supporting legs (11) are arranged at the bottom end of the heating device (2), an alkali liquor bottle (3) and an acid liquor bottle (4) are respectively arranged above the evaporation bottle (1) and the absorption bottle (8), a liquid inlet pipe A (231) is connected between the alkali liquor bottle (3) and the evaporation bottle (1), a liquid inlet pipe B (234) is connected between the acid liquor bottle (4) and the absorption bottle (8), a valve A (141) and a valve B (142) are respectively arranged on the liquid inlet pipe A (231) and the liquid inlet pipe B (234), an exhaust pipe A (232) is connected between the bottom end of the evaporation bottle (1) and the bottom end of the buffer tank (5), an exhaust pipe B (233) is connected between the bottom end of the buffer tank (5) and the absorption bottle (8), the middle part of the exhaust pipe B (233) is in a spiral structure, a spiral cooling pipe (6) is sleeved at the middle part of the exhaust pipe B (233), two ends of the spiral cooling pipe (6) are of the sealed structure, a cold air inlet pipe (236) is formed between the spiral cooling pipe A (6) and the middle part of the exhaust pipe B (233) respectively, and two ends of the exhaust pipe B (233) are respectively provided with a cold air inlet pipe (236); the inside slip of buffer tank (5) is provided with balancing weight (9), and the bottom of balancing weight (9) is provided with sealed plug (10), and the upper end of balancing weight (9) is fixed with link (22), and the bottom mounting of link (22) has rack (20), installs temperature regulation knob (19) through pivot (191) rotation on heating device (2), is fixed with gear (21) on pivot (191), and gear (21) and rack (20) meshing.
2. An automatic nitrogen determination instrument according to claim 1, characterized in that the upper end of the evaporation bottle (1) is provided with a sealing bottle cap (7), the sealing bottle cap (7) is provided with a stirring device, the stirring device comprises a driving motor (121), a mounting shaft (122) and stirring blades (123), the mounting shaft (122) is rotatably arranged at the bottom end of the sealing bottle cap (7), the stirring blades (123) are fixed on the mounting shaft (122), the driving motor (121) is fixedly arranged on the sealing bottle cap (7) and the output shaft of the driving motor is connected with the mounting shaft (122).
3. The automatic nitrogen determination instrument according to claim 1, wherein an annular spray head (13) is arranged in the evaporation bottle (1), a plurality of spray holes are formed in the inner side and the outer side of the annular spray head (13), a water pipe (17) is vertically connected to the annular spray head (13), the water pipe (17) movably penetrates through the sealing bottle cap (7), a threaded rod (182) and a guide sliding rod (183) are respectively arranged on two sides of the inside of the evaporation bottle (1), the annular spray head (13) is arranged on the guide sliding rod (183) in a sliding mode, the annular spray head (13) is in threaded connection with the threaded rod (182), a servo motor (181) is arranged on the sealing bottle cap (7), and an output shaft of the servo motor (181) is connected with the threaded rod (182).
4. An automatic azotometer according to claim 1, characterized in that transparent observation glass (15) is arranged on the alkali liquor bottle (3) and the acid liquor bottle (4), and scales (16) are arranged on the transparent observation glass (15).
5. An automatic azotometer according to claim 1, characterized in that the side part of the evaporation bottle (1) is fixedly connected with a sliding sleeve (25), and the connecting frame (22) is arranged on the sliding sleeve (25) in a sliding way.
6. An automatic azotometer according to claim 3, characterized in that the outer periphery of the water pipe (17) is provided with a sealing ring (24), and the sealing ring (24) is fixed on the sealing bottle cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741255.8U CN219978215U (en) | 2023-04-06 | 2023-04-06 | Automatic azotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741255.8U CN219978215U (en) | 2023-04-06 | 2023-04-06 | Automatic azotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219978215U true CN219978215U (en) | 2023-11-07 |
Family
ID=88593789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320741255.8U Active CN219978215U (en) | 2023-04-06 | 2023-04-06 | Automatic azotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219978215U (en) |
-
2023
- 2023-04-06 CN CN202320741255.8U patent/CN219978215U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |