CN105445411A - Kjeldahl apparatus liquid inlet device - Google Patents
Kjeldahl apparatus liquid inlet device Download PDFInfo
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- CN105445411A CN105445411A CN201510940696.0A CN201510940696A CN105445411A CN 105445411 A CN105445411 A CN 105445411A CN 201510940696 A CN201510940696 A CN 201510940696A CN 105445411 A CN105445411 A CN 105445411A
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- cylinder
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- feeding device
- inlet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/002—Determining nitrogen by transformation into ammonia, e.g. KJELDAHL method
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention provides a Kjeldahl apparatus liquid inlet device, and belongs to the technical field of chemical apparatuses. The liquid inlet device comprises a cylinder body and a cylinder cover arranged at the top end of the cylinder body, the cylinder body comprises a cylinder with the radius of R1 and a cylinder with the radius of R2, R1 is greater than R2, and the above two cylinders are connected in a natural transition manner; and the bottom of the cylinder with the radius of R2 is provided with a liquid outlet, the top of the cylinder with the radius of R1 is sealed by the cylinder cover, the center of the cylinder cover is provided with a through hole convenient for the shaft of a stirrer to go through, and the sidewall of the cylinder with the radius of R2 is obliquely upward provided with a liquid inlet. The Kjeldahl apparatus liquid inlet device has the advantages of simple installation, easy operation, and avoiding of interference of the stirring shaft and a titration solution tube.
Description
Technical field
The present invention relates to a kind of kjeldahl apparatus feeding device, belong to chemical apparatuses technical field.
Background technology
Azotometer is the principle of the content constant according to nitrogen in protein, and calculate the instrument of protein content by the content of nitrogen in working sample, widespread use food factory, drinking water plant, drug inspection, fertilizer measures.Its principle is that make breaks down proteins, the ammonia of decomposition is combined with sulfuric acid and generates ammonium sulfate by sample and sulfuric acid and catalyzer together hot digestion.Then distillation of alkalizing makes ammonia dissociate, and again with sulfuric acid or hydrochloric acid standard solution titration after absorbing, is multiplied by reduction coefficient calculates protein content according to the consumption of acid with boric acid.There are some problems when completing sulfuric acid or hydrochloric acid standard solution titration in the azotometer provided on the market at present, its receiving trap defectiveness in design, directly affects the judgement of experimental result.As shown in Figure 1, existing azotometer feed liquor receiving trap comprises cylindrical shell and is arranged on the cover of cylinder top, and described cylindrical shell comprises cylinder that radius is R1 and radius is the cylinder of R2, and R1 is greater than R2, and two cylinders nature transition connect.Radius is that the bottom of the cylinder of R2 is provided with leakage fluid dram, and radius is that the top of the cylinder of R1 utilizes cover to seal, and is provided with motor in the cavity in cover, for driving stirrer, the central authorities of the lower end of cover are provided with the first through hole, and the axle being convenient to stirrer passes through, and rotate to be driven by motor; The position of the offset from center of cover is provided with the second through hole, so that vs pipe stretches into.But the vs pipe 2 of existing feed liquor receiving trap is difficult to install, and position is wayward, and the axle 1 of stirrer easily encounters vs pipe 2 in rotary course, affects result of determination.
Summary of the invention
For overcoming the technical matters existed in prior art, goal of the invention of the present invention is to provide a kind of azotometer feeding device, installs simple to operation, avoids interferenceing with vs pipe with shaft.
For achieving the above object, the invention provides a kind of feeding device, it cover comprising cylindrical shell and be arranged on cylinder top, the bottom of cylindrical shell is provided with leakage fluid dram, it is characterized in that, the sidewall of cylindrical shell is provided with inlet obliquely upward.
Preferably, described cylindrical shell comprises cylinder that radius is R1 and radius is the cylinder of R2, and R1 is greater than R2, and two cylinders nature transition connect.
Preferably, feeding device also comprises stirring apparatus, and stirring apparatus comprises motor and stirrer, and motor is arranged in the cavity in cover; The central authorities of the lower end of cover are provided with through hole, and the axle being convenient to stirrer passes through.
Preferably, inlet is arranged on the sidewall that radius is the cylinder of R2.
Preferably, inlet is arranged on the sidewall that radius is the cylinder of R1.
Preferably, inlet is multiple.
Preferably, feeding device also comprises threeway, and the first port of wherein threeway is inserted into liquid mouth, and the second port is for inserting vs pipe, and the 3rd port is for inserting reactant liquor pipe to be tested.
Compared with prior art, feeding device provided by the invention, installs simple to operation, avoids interferenceing with vs pipe with shaft.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the feeding device that prior art provides;
Fig. 2 is the schematic cross-section of the feeding device that first embodiment of the invention provides;
Fig. 3 is the schematic cross-section of the feeding device that second embodiment of the invention provides;
Fig. 4 is the schematic cross-section of the feeding device that third embodiment of the invention provides;
Fig. 5 is the schematic cross-section of the feeding device that fourth embodiment of the invention provides;
Fig. 6 is the schematic cross-section of the feeding device that fifth embodiment of the invention provides.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
First embodiment
Fig. 2 is the schematic cross-section of the feeding device that first embodiment of the invention provides.As shown in Figure 2, the feeding device that first embodiment of the invention provides comprises cylindrical shell and is arranged on the cover 18 of cylinder top, and it is that the cylinder 12, R1 of R2 is greater than R2 that described cylindrical shell comprises cylinder 11 that radius is R1 and radius, two cylinder nature transition connect, and Formation cross-section is the funnel type tube of isosceles trapezoid; Radius is that the bottom center of the cylinder of R2 is provided with leakage fluid dram 13, and radius is that the top of the cylinder of R1 utilizes cover 18 to seal.Feeding device provided by the invention also comprises stirring apparatus, and stirring apparatus comprises motor (not shown) and stirrer 14, and motor is arranged in the cavity in cover; The central authorities of the lower end of cover are provided with through hole, and the axle being convenient to stirrer passes through.Radius is that the sidewall of the cylinder of R2 is provided with inlet 15 obliquely upward.Feeding device also comprises threeway 17, and the first port of wherein threeway is inserted in liquid mouth or is enclosed within inlet, and the second port is for inserting vs pipe the 16, three port for inserting reactant liquor pipe to be tested.
Second embodiment
Fig. 3 is the schematic cross-section of the feeding device that second embodiment of the invention provides.As shown in Figure 3, the feeding device that second embodiment of the invention provides comprises cylindrical shell and is arranged on the cover 18 of cylinder top, and it is that the cylinder 12, R1 of R2 is greater than R2 that described cylindrical shell comprises cylinder 11 that radius is R1 and radius, two cylinder nature transition connect, and Formation cross-section is the funnel type tube of isosceles trapezoid; Radius is that the bottom center of the cylinder of R2 is provided with leakage fluid dram 13, and radius is that the top of the cylinder of R1 utilizes cover 18 to seal.Feeding device provided by the invention also comprises stirring apparatus, and stirring apparatus comprises motor (not shown) and stirrer 14, and motor is arranged in the cavity in cover; The central authorities of the lower end of cover are provided with through hole, and the axle being convenient to stirrer passes through.Radius is that the sidewall of the cylinder of R2 is provided with inlet 15 and inlet opening 18 obliquely upward.Inlet 15 is for inserting vs pipe 16, and inlet opening 18 is for inserting reactant liquor pipe 19 to be tested.
3rd embodiment
Fig. 4 is the schematic cross-section of the feeding device that third embodiment of the invention provides.As shown in Figure 4, the feeding device that first embodiment of the invention provides comprises cylindrical shell and is arranged on the cover 18 of cylinder top, and it is that the cylinder 12, R1 of R2 is greater than R2 that described cylindrical shell comprises cylinder 11 that radius is R1 and radius, two cylinder nature transition connect, and Formation cross-section is the funnel type tube of isosceles trapezoid; Radius is that the bottom center of the cylinder of R2 is provided with leakage fluid dram 13, and radius is that the top of the cylinder of R1 utilizes cover 18 to seal.Feeding device provided by the invention also comprises stirring apparatus, and stirring apparatus comprises motor (not shown) and stirrer 14, and motor is arranged in the cavity in cover; The central authorities of the lower end of cover are provided with through hole, and the axle being convenient to stirrer passes through.Radius is that the sidewall of the cylinder of R1 is provided with inlet 15 obliquely upward.Feeding device also comprises threeway 17, and the first port of wherein threeway is inserted in liquid mouth or is enclosed within inlet, and the second port is for inserting vs pipe the 16, three port for inserting reactant liquor pipe to be tested.
4th embodiment
Fig. 5 is the schematic cross-section of the feeding device that fourth embodiment of the invention provides.As shown in Figure 5, the feeding device that fourth embodiment of the invention provides comprises cylindrical shell and is arranged on the cover 18 of cylinder top, and it is that the cylinder 12, R1 of R2 is greater than R2 that described cylindrical shell comprises cylinder 11 that radius is R1 and radius, two cylinder nature transition connect, and Formation cross-section is the funnel type tube of isosceles trapezoid; Radius is that the bottom center of the cylinder of R2 is provided with leakage fluid dram 13, and radius is that the top of the cylinder of R1 utilizes cover 18 to seal.Feeding device provided by the invention also comprises stirring apparatus, and stirring apparatus comprises motor (not shown) and stirrer 14, and motor is arranged in the cavity in cover; The central authorities of the lower end of cover are provided with through hole, and the axle being convenient to stirrer passes through.Radius is that the sidewall of the cylinder of R1 is provided with inlet 15 and inlet opening 18 obliquely upward.Inlet 15 is for inserting vs pipe 16, and inlet opening 18 is for inserting reactant liquor pipe 19 to be tested.
5th embodiment
Fig. 6 is the schematic cross-section of the feeding device that fifth embodiment of the invention provides.As shown in Figure 6, the feeding device that fifth embodiment of the invention provides comprises cylindrical shell and is arranged on the cover 18 of cylinder top, and it is that the cylinder 12, R1 of R2 is greater than R2 that described cylindrical shell comprises cylinder 11 that radius is R1 and radius, and two cylinders nature transition connect; Radius is that the bottom center of the cylinder of R2 is provided with leakage fluid dram 13, and radius is that the top of the cylinder of R1 utilizes cover 18 to seal.Feeding device provided by the invention also comprises stirring apparatus, and stirring apparatus comprises motor (not shown) and stirrer 14, and motor is arranged in the cavity in cover; The central authorities of the lower end of cover are provided with through hole, and the axle being convenient to stirrer passes through.Radius is that the sidewall of the cylinder of R2 is provided with inlet 15 obliquely upward, and inlet 15 is for inserting vs pipe 16; Radius is that the sidewall of the cylinder of R1 is provided with inlet 18 obliquely upward, and inlet opening 18 is for inserting reactant liquor pipe 19 to be tested.
Although the present invention take radius as the sidewall of the cylinder of R2 be provided with one and two inlets obliquely upward, radius is that the sidewall of the cylinder of R1 is provided with one and two inlets obliquely upward, footpath is that the sidewall of the cylinder of R1 is provided with an inlet obliquely upward, footpath is that to be provided with an inlet be obliquely upward that example has carried out exemplary illustration to the sidewall of the cylinder of R2, but the present invention is not limited to said structure, it is that the sidewall of the cylinder of R2 is provided with two or more inlet obliquely upward that the present invention is also included within radius, radius is that the sidewall of the cylinder of R1 is provided with two or more inlet obliquely upward, footpath is that the sidewall of the cylinder of R1 is provided with more than one inlet obliquely upward, footpath is the situation that the sidewall of the cylinder of R2 is provided with more than one inlet obliquely upward, all in protection scope of the present invention.
The above is only that embodiments of the present invention have done detailed description; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improvement and modification also should be considered as the protection domain invented.
Claims (8)
1. a feeding device, it cover comprising cylindrical shell and be arranged on cylinder top, the bottom of cylindrical shell is provided with leakage fluid dram, it is characterized in that, the sidewall of cylindrical shell is provided with inlet obliquely upward.
2. azotometer feeding device according to claim 1, is characterized in that, described cylindrical shell comprises cylinder that radius is R1 and radius is the cylinder of R2, and R1 is greater than R2, and two cylinders nature transition connect.
3. azotometer feeding device according to claim 2, is characterized in that, also comprise stirring apparatus, and stirring apparatus comprises motor and stirrer, and motor is arranged in the cavity in cover; The central authorities of the lower end of cover are provided with through hole, and the axle being convenient to stirrer passes through.
4., according to the arbitrary described feeding device of claim 1-3, it is characterized in that, inlet is arranged on the sidewall that radius is the cylinder of R2.
5., according to the arbitrary described feeding device of claim 1-3, it is characterized in that, inlet is arranged on the sidewall that radius is the cylinder of R1.
6. feeding device according to claim 4, is characterized in that, inlet is multiple.
7. feeding device according to claim 5, is characterized in that, inlet is multiple.
8. the feeding device according to claim 6 or 7, is characterized in that, also comprises threeway, and the first port of wherein threeway is inserted into liquid mouth, and the second port is for inserting vs pipe, and the 3rd port is for inserting reactant liquor pipe to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940696.0A CN105445411B (en) | 2015-12-16 | 2015-12-16 | Kjeldahl apparatus feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940696.0A CN105445411B (en) | 2015-12-16 | 2015-12-16 | Kjeldahl apparatus feeding device |
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| Publication Number | Publication Date |
|---|---|
| CN105445411A true CN105445411A (en) | 2016-03-30 |
| CN105445411B CN105445411B (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510940696.0A Active CN105445411B (en) | 2015-12-16 | 2015-12-16 | Kjeldahl apparatus feeding device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344922Y (en) * | 2008-12-29 | 2009-11-11 | 河北先河环保科技股份有限公司 | Digesting titration apparatus |
| CN203405441U (en) * | 2013-04-07 | 2014-01-22 | 江西怡杉环保有限公司 | Instrument for detecting COD (chemical oxygen demand) of high-chlorine wastewater on line by basic potassium permanganate method |
| CN104569113A (en) * | 2015-01-27 | 2015-04-29 | 上海化工研究院 | Hot gas flow dissociation dewatering indirect Karl-Fischer-process analysis device |
-
2015
- 2015-12-16 CN CN201510940696.0A patent/CN105445411B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344922Y (en) * | 2008-12-29 | 2009-11-11 | 河北先河环保科技股份有限公司 | Digesting titration apparatus |
| CN203405441U (en) * | 2013-04-07 | 2014-01-22 | 江西怡杉环保有限公司 | Instrument for detecting COD (chemical oxygen demand) of high-chlorine wastewater on line by basic potassium permanganate method |
| CN104569113A (en) * | 2015-01-27 | 2015-04-29 | 上海化工研究院 | Hot gas flow dissociation dewatering indirect Karl-Fischer-process analysis device |
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| CN105445411B (en) | 2017-08-08 |
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