CN205958343U - A digestion tube for soil organic matter survey - Google Patents
A digestion tube for soil organic matter survey Download PDFInfo
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- CN205958343U CN205958343U CN201621038676.0U CN201621038676U CN205958343U CN 205958343 U CN205958343 U CN 205958343U CN 201621038676 U CN201621038676 U CN 201621038676U CN 205958343 U CN205958343 U CN 205958343U
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- tube
- clearing
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- test tube
- digestion
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Abstract
The utility model discloses a digestion tube for soil organic matter survey for clear up the heating device cooperation of appearance uses with COD, digestion tube comprises the air backflow pipe of clearing up the test tube with inserting on clearing up test tube mouth. The utility model discloses adopt the unsuitable survey soil organic matter's of screw lid problem to present digestion tube, improve digestion tube, through the purpose -made air backflow pipe of installation on clearing up the test tube, make pipe inner pressure equal with the external pressure all the time, can not be owing to the outbreak weeping be crossed to pressure, the batch processing volume is big, easy operation, with low costs, rinse convenient, energy -concerving and environment -protective.
Description
Technical field
The utility model belongs to experiment equipment field and in particular to a kind of digestion tube for soil organism mensure.
Background technology
The mensure of the soil organism is divided into two steps, and the first step is the soil organism under strongly acidic conditions by excessive potassium bichromate
Oxidation is cleared up, and second step is the mensure of remaining potassium bichromate.
COD clears up instrument and is mainly organic matter for the reducing substances measuring in water sample.Existing COD clears up instrument and includes heating
Part and the digestion tube containing the threaded lid that water sample is reacted.As (the Lanzhou even magnificent environmental protection of 5B-1 type COD Quick testing instrument
Science and Technology Ltd.)；COD clears up instrument 25 hole (Changsha Keelung instrument and meter Co., Ltd)；HCR-100 rapid-digestion device (Taizhou
Ke Xin Instrument Ltd. of city)；Instrument (Beijing Ke Nuo tech Analytical Instrument Co., Ltd) etc. is cleared up in KN-HEA12 type intelligence 25 holes.
K when water sample COD clears up2Cr2O7Concentration compared with the soil organism clear up when K2Cr2O7Concentration is low, organic in water sample
Amount few compared with the amount of soil with organic matter, the chemical reaction that when water sample COD clears up, chemical reaction velocity measures compared with the soil organism
Speed is slow.COD measure when reaction vessel can with the digestion tube of threaded lid, but used in the soil organism clear up when be not suitable for,
The soil organism clears up that chemical reaction rate is fast, air pressure big, easily bottle cap punching is loosened and oozes out reactant liquor；If without lid, change
Learn reaction speed and go out liquid soon.Therefore, existing COD clear up instrument digestion tube exist be not suitable for clearing up soil test
Organic problem.
Utility model content
The utility model purpose is a kind of digestion tube for soil organism mensure, solves water sample COD and measures digestion tube
Be not suitable for measuring the problem of the soil organism.
The technical solution of the utility model is：The digestion tube measuring for the soil organism, for clearing up adding of instrument with COD
Thermal uses cooperatively, and described digestion tube is by clearing up test tube and be inserted in the air return pipe cleared up on test tube mouth and constitute.
Further, described air return Guan Yousan section is constituted, respectively bottom straight tube angle section, and section is expanded at middle part, on
Portion's straight length, the external diameter of described bottom straight tube angle section is less than the internal diameter clearing up test tube, and the external diameter that section is expanded at described middle part is more than
Clear up the internal diameter of test tube.
Further, described middle part expand section two ends arc-shaped transition respectively with top straight length and bottom straight tube angle Duan Lian
Connect.
Further, the described external diameter clearing up test tube is 17mm, and length is 200mm, and the bottom straight tube of air return pipe is oblique
The internal diameter of mouth section is 5mm, and length is 60mm, and the external diameter that section is expanded at middle part is 23mm, and length is 50mm, the internal diameter of top straight length
For 5mm, length is 100mm.
The utility model compared with prior art has the advantage that：
The utility model is directed to the problem that existing digestion tube is not suitable for measuring the soil organism using thread cap, offsets
Solution pipe is improved, and by installing special air return pipe on test tube clearing up, makes overpressure equal with external pressure all the time,
Will not due to pressure excessive generation leakage, batch processing amount is big, simple to operate, low cost, easy to clean, energy-conserving and environment-protective.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation clearing up test tube；
Fig. 3 is the structural representation of air return pipe.
In figure reference is：1- clears up test tube, 2- top straight length, expands section, 4- bottom straight tube angle section in the middle part of 3-.
Specific embodiment
Embodiment 1
As shown in Figure 1-Figure 3, the digestion tube measuring for the soil organism, the heater for being cleared up instrument with COD is joined
Close and use, described digestion tube is by clearing up test tube 1 and be inserted in and clear up the air return pipe on 1 mouthful of test tube and constitute.
Embodiment 2
As shown in Figure 1-Figure 3, the digestion tube measuring for the soil organism, the heater for being cleared up instrument with COD is joined
Close and use, described digestion tube by clearing up test tube 1 and be inserted in and clear up the air return pipe on 1 mouthful of test tube and constitute, described air return
Guan Yousan section is constituted, respectively bottom straight tube angle section 4, and section 3, top straight length 2, described bottom straight tube angle section are expanded in middle part
4 external diameter is less than the internal diameter clearing up test tube 1, and the external diameter that section 3 is expanded at described middle part is more than the internal diameter clearing up test tube 1.So air
Return duct just can very easily insert to be cleared up in test tube 1, and can play good air cooling reflowing result.
Embodiment 3
As shown in Figure 1-Figure 3, the digestion tube measuring for the soil organism, the heater for being cleared up instrument with COD is joined
Close and use, described digestion tube by clearing up test tube 1 and be inserted in and clear up the air return pipe on 1 mouthful of test tube and constitute, described air return
Guan Yousan section is constituted, respectively bottom straight tube angle section 4, and section 3, top straight length 2, described bottom straight tube angle section are expanded in middle part
4 external diameter is less than the internal diameter clearing up test tube 1, and the external diameter that section 3 is expanded at described middle part is more than the internal diameter clearing up test tube 1.Described middle part
Expand section 3 two ends arc-shaped transition to be connected with top straight length 2 and bottom straight tube angle section 4 respectively.Connected using arc-shaped transition, empty
No corner in gas return duct, is easy to opposing steam flow, also allows for cleaning.
Embodiment 4
As shown in Figure 1-Figure 3, this embodiment is the optimization further on the basis of embodiment 3, described test tube 1 of clearing up
External diameter is 17mm, and length is 200mm, and the internal diameter of the bottom straight tube angle section 4 of air return pipe is 5mm, and length is 60mm, middle part
The external diameter expanding section 3 is 23mm, and length is 50mm, and the internal diameter of top straight length 2 is 5mm, and length is 100mm.By specific
Size design, makes it to clear up the heater perfect cooperation of instrument with existing COD.
During use, digestion tube of the present utility model is put into existing COD and clears up in instrument.
Embodiment described above only have expressed the specific embodiment of the application, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the application protection domain can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, on the premise of conceiving without departing from technical scheme, some deformation can also be made and improve, these broadly fall into this
The protection domain of application.
Claims (4)
1. it is used for the digestion tube that the soil organism measures, the heater for being cleared up instrument with COD is used cooperatively, and its feature exists
In, described digestion tube by clearing up test tube and be inserted in the air return pipe cleared up on test tube mouth and constitute.
2. the soil organism according to claim 1 measures digestion tube is it is characterised in that described air return Guan Yousan
Section is constituted, respectively bottom straight tube angle section, and section, top straight length are expanded in middle part, and the external diameter of described bottom straight tube angle section is little
In the internal diameter clearing up test tube, the external diameter that section is expanded at described middle part is more than the internal diameter clearing up test tube.
3. the digestion tube that the soil organism according to claim 2 measures is it is characterised in that section two ends are expanded at described middle part
Arc-shaped transition is connected with top straight length and bottom straight tube angle section respectively.
4. the soil organism according to claim 3 measures digestion tube is it is characterised in that the described external diameter clearing up test tube
For 17mm, length is 200mm, and the internal diameter of the bottom straight tube angle section of air return pipe is 5mm, and length is 60mm, and middle part is expanded
The external diameter of section is 23mm, and length is 50mm, and the internal diameter of top straight length is 5mm, and length is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038676.0U CN205958343U (en) | 2016-09-06 | 2016-09-06 | A digestion tube for soil organic matter survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038676.0U CN205958343U (en) | 2016-09-06 | 2016-09-06 | A digestion tube for soil organic matter survey |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958343U true CN205958343U (en) | 2017-02-15 |
Family
ID=57979324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621038676.0U Active CN205958343U (en) | 2016-09-06 | 2016-09-06 | A digestion tube for soil organic matter survey |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205958343U (en) |
-
2016
- 2016-09-06 CN CN201621038676.0U patent/CN205958343U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |