CN205665097U - What prevent kieldahl azotometer sample bumping adds alkali and diluting device - Google Patents
What prevent kieldahl azotometer sample bumping adds alkali and diluting device Download PDFInfo
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- CN205665097U CN205665097U CN201620503638.1U CN201620503638U CN205665097U CN 205665097 U CN205665097 U CN 205665097U CN 201620503638 U CN201620503638 U CN 201620503638U CN 205665097 U CN205665097 U CN 205665097U
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- Prior art keywords
- alkali
- pump
- water
- prevent
- alembic
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- 239000003513 alkali Substances 0.000 title claims abstract description 107
- 238000007865 diluting Methods 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 230000001079 digestive effect Effects 0.000 claims description 17
- 238000004448 titration Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 abstract description 9
- 230000008025 crystallization Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 239000012895 dilution Substances 0.000 description 18
- 238000010790 dilution Methods 0.000 description 18
- 239000003518 caustics Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000009835 boiling Methods 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 230000029087 digestion Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000001117 sulphuric acid Substances 0.000 description 5
- 235000011149 sulphuric acid Nutrition 0.000 description 5
- 210000002249 digestive system Anatomy 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000012812 general test Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a what prevent kieldahl azotometer sample bumping adds alkali and diluting device, including a primae viae, retort rather than the inside intercommunication of open -top position installation of primae viae, the top of retort establish ties behind the condenser with one titrate the jar and link to each other, simultaneously the retort still be equipped with alkali lye and water liquid entry, alkali lye or water liquid entry continuous with alkali pump with the water pump respectively, water pump and alkali pump through a controlling means control. The device has overcome bumping and alkali pump crystallization problem, has improved kieldahl azotometer survey precision.
Description
Technical field
The utility model discloses a kind of prevent kjeldahl apparatus sample bumping add alkali and air mix facilities.
Background technology
Kjeldahl apparatus work process need to Digestive system dilute and add alkali alkalization；General Protein Analyzer
It is all after setting caustic dosage and amount of dilution with full-automatic Kjeldahl determination device, disposably setting caustic dosage and amount of dilution is added and disappear
Change in pipe；There is a serious problem among these, because Specimen eliminating process need to be decomposed digestion sample with concentrated sulphuric acid by kjeldahl apparatus
Product, test be all the concentrated sulphuric acid of analytical pure rank more than 99.999% as strong oxidizer, if added in this concentrated sulphuric acid
Water or highly basic, strong acid runs into water or highly basic reaction all can discharge rapidly substantial amounts of heat energy, makes the liquid in digestive tube fast
Speed boiling；Owing to being limited by kjeldahl apparatus height, the heat energy discharged will break through the restriction of alembic, enter titration cylinder,
Cause the significant errors of result of the test.
Additionally, alkali liquor is typically pumped into by kjeldahl apparatus with self priming pump is automatically performed filling operation inside machine, become
The restriction of the constraintss such as basis, volume, self priming pump is typically chosen the pump of the form such as membrane pump, flow pump, these pumps typically understand because of
For parts such as the crystallisation problems of sodium hydroxide, Crystallization Plugging pump diaphragm, check valves, cause alkali pump can not normally suck alkali liquor, be
, once there is Crystallization Plugging pump, although damage without any parts in one of fault that kjeldahl apparatus producer and maximum exist,
Only need simply to clear up casing, but need for producer service personal and make house calls, entering of significant delay client test
OK, too increasing the cost burden of manufacturer, therefore, the problem of alkali pump crystallization annoyings sending out of kjeldahl apparatus always simultaneously
Exhibition process, is concentrated mainly in the type selecting to pump and improvement regardless of the thinking that domestic manufacturer and external producer are original, the most fixed
More greatly or diaphragm is difficult to be prematured by solids in the solution of the sealing problem caused to make some cavitys, it is impossible to fundamentally solve this
One problem.
Utility model content
In order to solve technical problem present in prior art, the utility model discloses one and overcome bumping and alkali pump
Crystallisation problems, and improve a kind of device diluting and add alkali of kjeldahl apparatus measurement accuracy, this device has the highest fitting
With being worth and application value.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of prevent kjeldahl apparatus sample bumping add alkali and air mix facilities, including a digestive tube, described digestion
An alembic connected with its inside is installed in the open top position of pipe, with one after one condenser of top series connection of alembic
Individual titration cylinder is connected, simultaneously described in alembic be additionally provided with alkali liquor and water liquid entrance, described alkali liquor or water liquid entrance respectively with
Water pump is connected with alkali pump, and described water pump and alkali pump control device by one and control.
This utility model be possible to prevent Digestive system bottom digestive tube owing to meeting a large amount of alkali liquor or water liquid, drastically heat release and lead
The boiling rapidly caused, and then break through limiting entrance condenser and then entering the test failure or essence titrating cylinder and cause of alembic
Degree reduction problem.
Further, the described input controlling device is provided with a display, and described display is provided with data
Input module.
Further, described alembic is provided with still head with the mouth of digestive tube connecting tube.
Further, the entrance of described alkali pump is connected with alkali liquor input pipe, alkali delivery side of pump and an alkali liquor outlet tube
Being connected, be provided with control valve I at described alkali liquor input pipe, a be provided with clear water in parallel with alkali liquor input pipe rinses
Pipe, the input of described clear water flush pipe connects water source, and outfan connects the entrance of alkali pump；Pacify in clear water flush pipe simultaneously
Equipped with control valve II.
Concrete control method is as follows:
After starting kjeldahl apparatus, dilute and adding alkali link, control device according to the caustic dosage set or the dilution water yield
Divided by adding alkali number of times or dilution number of times, draw each caustic dosage or amount of dilution, then control device control water pump or alkali pump adds
Enter corresponding alkali liquor or dilution water；
Alkali liquor enters alembic through alkali road and adds alkali entrance, and dilution water enters into alembic by water route and adds water inlet；Solution
After addition, the tube wall along alembic, still head and digestive tube flows into bottom digestive tube, after the interval time formulated of pausing；Under carrying out
Titration once；It is sequentially completed dilution according to the number of times set and adds alkali process.
Controlling device to control control valve I and close, control valve II opens, and alkali pump works on, when water by alkali pump and alkali pump in
After pipeline between water valve is full of, close alkali pump, closing control valve II.
Further, when user uses, can according to actual needs by the data input module of display, typing is corresponding
Caustic dosage, add alkali number of times and interval time and the dilution water yield, dilution number of times and interval time.
The alkali liquor added according to general test requirements document typically to reach during digestion 4 times of concentrated sulphuric acid.
Good effect of the present utility model:
1. this utility model be possible to prevent Digestive system bottom digestive tube owing to meeting a large amount of alkali liquor or water liquid, drastically heat release and
The rapid boiling caused, so break through alembic limit enter condenser so that enter titration cylinder and the test failure that causes or
Precision reduces problem.
Therefore, this utility model well suppresses the generation of boiling explosion phenomenon, solves kjeldahl apparatus because of boiling explosion phenomenon
And the test sample unstable result problem caused.
2. this installation cost is low, controls simple, kjeldahl apparatus automatic watering to be realized function itself, and this utility model is only
Need only increasing a water valve and some pipelines, thoroughly solve kjeldahl apparatus alkali pump crystallisation problems, the party
, after actual user uses, no longer there is alkali pump crystallisation problems in case.
Accompanying drawing explanation
Fig. 1 structure chart of the present utility model；
Fig. 2 alkali pump part controls schematic diagram；
In figure: 1 digestive tube, 2 still heads, 3 alembics, 4 condensers, 5 condensed waters, 6 titration cylinders, 7 water pumps, 8 alkali pumps, 9 controls
Device processed, 10. waterway electromagnetic valve II；11. alkali way solenoid valve I；12. clear water flush pipes；13 alkali liquor input pipes；14 alkali liquor outputs
Pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in detail:
As it is shown in figure 1, a kind of prevent kjeldahl apparatus sample bumping add alkali and air mix facilities, including a digestive tube 1,
An alembic 3 connected with its inside is installed in the open top position of described digestive tube 1, connects one in the top of alembic
Be connected with a titration cylinder 6 after condenser 4, while described in alembic be additionally provided with alkali liquor and water liquid entrance, described alkali liquor or
Water liquid entrance is connected with water pump and alkali pump respectively, and described water pump 7 and alkali pump 8 control device 9 by one and control.Alembic 3
It is provided with still head 2 with the mouth of digestive tube 1 connecting tube.
The input controlling device 9 is provided with a display, and described display is provided with data input module.
The entrance of alkali pump 8 is connected with alkali liquor input pipe 13, and the outlet of alkali pump 8 is connected with an alkali liquor outlet tube 14, in institute
The alkali liquor input pipe stated is provided with Ge Jian road control valve I11, and in parallel with alkali liquor input pipe is provided with a clear water flush pipe 12,
The input of described clear water flush pipe connects water source, and outfan connects the entrance of alkali pump 8；Install in clear water flush pipe simultaneously
There is waterway controlling valve II10.
Concrete control method is as follows:
When step 1. user uses, by the corresponding caustic dosage of data input module typing of display, add alkali number of times with
And interval time and the dilution water yield, dilution number of times and interval time；
After step 2. starts kjeldahl apparatus, dilute and adding alkali link, control device according to the caustic dosage or dilute set
Release the water yield divided by adding alkali number of times or dilution number of times, draw each caustic dosage or amount of dilution, then control device control water pump or
Alkali pump adds corresponding alkali liquor or dilution water；
Step 3. alkali liquor through alkali road enter alembic add alkali entrance, dilution water by water route enter into alembic add water into
Mouthful；Solution bottom the tube wall inflow digestive tube of suitable alembic, still head and digestive tube, pauses the interval time formulated after adding
After；Carry out titration next time；It is sequentially completed according to the number of times set, dilutes and add alkali and dilution.
Controlling device and control the control valve I11 closedown of alkali road, waterway controlling valve II10 opens, and alkali pump works on, when water will
After alkali pump and the alkali pump pipeline between water valve is full of, close alkali pump 8, close waterway controlling valve II10.
Add alkali process to be all full of by the pipeline between alkali pump and control valve II and alkali pump with water every time.Add alkali mistake the most every time
Journey be automatically performed this process, control valve I and base pump inlet and exit pipeline be full of be not high-concentration alkali liquor, but
Being equivalent to carry out the most automatically cleaning to alkali pump, so the alkali concn in alkali pump and neighbouring pipeline is the lowest, alkali did not had
Saturated phenomenon, does not haves crystallization in such alkali pump.Stop alkali pump and crystallize the kjeldahl apparatus integrity problem caused.
This utility model be possible to prevent Digestive system bottom digestive tube owing to meeting a large amount of alkali liquor or water liquid, drastically heat release and lead
Causing, seething with excitement rapidly and then breaking through limiting of alembic enters condenser and then enters the test failure or essence titrating cylinder and cause
Degree reduction problem.
The alkali liquor added according to general test requirements document typically to reach during digestion 4 times of concentrated sulphuric acid.As follows: one
As digestion time add 15ml concentrated sulphuric acid, when adding alkali, caustic dosage cannot be below 60ml.Show typically according to long-term many experimental results:
With basic guarantee, boiling explosion phenomenon can will not occur according to arrangement above.Total survey can be lengthened owing to interval time is elongated
The examination time, owing to can guarantee that the precision test period simultaneously of test extends few, client is willing to accept.By increase add alkali and
Dilution number of times perfect can solve the measuring accuracy problem that sample bumping causes according to sample practical situation.
Although detailed description of the invention of the present utility model is described by the above-mentioned accompanying drawing that combines, but not new to this practicality
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not to pay various amendments or deformation that creative work can make still at protection model of the present utility model
Within enclosing.
Claims (4)
1. one kind prevent kjeldahl apparatus sample bumping add alkali and air mix facilities, it is characterised in that include a digestive tube, institute
An alembic connected with its inside is installed in the open top position of the digestive tube stated, top one condensation of series connection of alembic
Be connected with a titration cylinder after device, while described in alembic be additionally provided with alkali liquor and water liquid entrance, described alkali liquor or water liquid enter
Mouth is connected with water pump and alkali pump respectively, and described water pump and alkali pump control device by one and control.
Prevent kjeldahl apparatus sample bumping the most as claimed in claim 1 adds alkali and air mix facilities, it is characterised in that described
Control device input be provided with a display, described display is provided with data input module.
Prevent kjeldahl apparatus sample bumping the most as claimed in claim 2 adds alkali and air mix facilities, it is characterised in that described
The entrance of alkali pump be connected with alkali liquor input pipe, alkali delivery side of pump and an alkali liquor outlet tube are connected, in described alkali liquor input
Pipe is provided with control valve I, and in parallel with alkali liquor input pipe is provided with a clear water flush pipe, described clear water flush pipe defeated
Entering end and connect water source, outfan connects the entrance of alkali pump；In clear water flush pipe, control valve II is installed simultaneously.
4. described in claim 1 prevent kjeldahl apparatus sample bumping add alkali and air mix facilities, it is characterised in that described
Alembic is provided with still head with the mouth of digestive tube connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620503638.1U CN205665097U (en) | 2016-05-27 | 2016-05-27 | What prevent kieldahl azotometer sample bumping adds alkali and diluting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620503638.1U CN205665097U (en) | 2016-05-27 | 2016-05-27 | What prevent kieldahl azotometer sample bumping adds alkali and diluting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205665097U true CN205665097U (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620503638.1U Active CN205665097U (en) | 2016-05-27 | 2016-05-27 | What prevent kieldahl azotometer sample bumping adds alkali and diluting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205665097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890968B (en) * | 2016-05-27 | 2018-12-25 | 李永亮 | A kind of preventing kjeldahl apparatus sample bumping plus alkali and dilution device and method |
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2016
- 2016-05-27 CN CN201620503638.1U patent/CN205665097U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890968B (en) * | 2016-05-27 | 2018-12-25 | 李永亮 | A kind of preventing kjeldahl apparatus sample bumping plus alkali and dilution device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170608 Address after: 250101, No. three, section 306-2, willow town, Licheng District, Shandong, Ji'nan Patentee after: JINAN ALVA INSTRUMENT CO., LTD. Address before: 250101, Ji'nan high tech Zone, Shandong Province Environmental Protection Science and Technology Park, E, 6 North Block Patentee before: Li Yongliang |