CN205761223U - Use for laboratory intubates triangular flask - Google Patents
Use for laboratory intubates triangular flask Download PDFInfo
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- CN205761223U CN205761223U CN201620495971.2U CN201620495971U CN205761223U CN 205761223 U CN205761223 U CN 205761223U CN 201620495971 U CN201620495971 U CN 201620495971U CN 205761223 U CN205761223 U CN 205761223U
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- triangular flask
- air inlet
- joint
- thread cap
- pagoda joint
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Abstract
A kind of use for laboratory intubates triangular flask, and its main body is triangular flask bottle, and triangular flask bottle includes bottleneck, air inlet, gas outlet；Air inlet and gas outlet are sealed by glass tubing and connect, and stretch into the inside of triangular flask from the side intubating triangular flask, and gas outlet is perpendicular to intubate at the bottom of the bottle of triangular flask；Air inlet is connected with screwed pipe joint, screwed pipe joint is made up of sealing ring, pagoda joint, thread cap, sealing ring is enclosed within the draw-in groove bottom pagoda joint, pagoda joint passes thread cap, making air inlet be connected with pagoda joint sealing by thread cap internal whorl, air inlet pipe is enclosed within the top of pagoda joint.This utility model connects reliable, easy accessibility, uses simple.
Description
Technical field
This utility model relates to a kind of chemical oxygen demand of high-chloride wastewater (COD) determination experiment device, and particularly belong to digestion process use intubates triangular flask.
Background technology
" the mensuration chlorine correction method of chemical oxygen demand of high-chloride wastewater " (HJ/T-2001) eliminates the interference that COD is measured by high chloride ion content, as one of methods for COD measurement in high-chlorine waste water.In experimental procedure 8.6, being passed through nitrogen (5～10ml/min) heating, reflux from solution boiling 2h.After stopping heating, strengthen nitrogen flow (30～40ml/min), continue logical nitrogen 30～40min.So, nitrogen is the essential condition of experiment, through whole experimentation.
Traditional digestion instrument, although feasible, but have the disadvantage in that
1, traditional digestion instrument, nitrogen inlet duct is directly sleeved on the air inlet intubating triangular flask, if digestion instrument internal pressure is excessive, air inlet pipe easily comes off, and affects experimental result.
2, after experiment terminates, need to pull up air inlet pipe；Clear up on bottle because silica gel tube is directly sleeved on triangle, clear up heating and make silica gel tube the most aging, thus clear up from triangle pull up bottle air inlet pipe be difficult to operation.
Utility model content
The purpose of this utility model is to provide a kind of and air inlet pipe stable connection and easy to operate use for laboratory intubates triangular flask.
To achieve these goals, the following technical scheme of this utility model offer:
A kind of use for laboratory intubates triangular flask, and its main body is triangular flask bottle, and triangular flask bottle includes bottleneck, air inlet, gas outlet；Air inlet and gas outlet are sealed by glass tubing and connect, and stretch into the inside of triangular flask from the side intubating triangular flask, and gas outlet is perpendicular to intubate at the bottom of the bottle of triangular flask；It is characterized in that: air inlet is connected with screwed pipe joint, screwed pipe joint is made up of sealing ring, pagoda joint, thread cap, sealing ring is enclosed within the draw-in groove bottom pagoda joint, pagoda joint passes thread cap, making air inlet be connected with pagoda joint sealing by thread cap internal whorl, air inlet pipe is enclosed within the top of pagoda joint.
Above-mentioned digestion instrument, it is characterised in that: nicking structure is processed in the outside of thread cap, and the material of screwed pipe joint uses politef.
The beneficial effects of the utility model:
1, after experiment terminates, rotate thread cap with hands gently, just can make to intubate triangular flask and separate with pipe.Connect reliable, easy accessibility, use simple.
2, to process the ring of multiple band tapering convex at the top of pagoda joint, is similar to stratiform pagoda, makes air inlet pipe be enclosed within firmly on pagoda joint.
3, politef is one of decay resistance optimal material, and chemical stability is good.
Accompanying drawing explanation
Fig. 1 is triangular flask Bottle structure schematic diagram.
Fig. 2 is the structural representation of pagoda joint.
Fig. 3 is the structural representation of thread cap.
In figure: 1, bottleneck 2, air inlet 3, gas outlet 4, sealing ring 5, pagoda joint 6, thread cap.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of use for laboratory intubates triangular flask, and its main body is triangular flask bottle, and triangular flask bottle includes bottleneck 1, air inlet 2, gas outlet 3；Air inlet 2 and gas outlet 3 is sealed by glass tubing and connects, and stretches into the inside of triangular flask from the side intubating triangular flask, and gas outlet 3 is perpendicular to intubate at the bottom of the bottle of triangular flask；Air inlet 2 is connected with screwed pipe joint, screwed pipe joint is made up of sealing ring 4, pagoda joint 5, thread cap 6, sealing ring 4 is enclosed within the draw-in groove bottom pagoda joint 5, pagoda joint 5 is through thread cap 6, making air inlet be tightly connected with pagoda joint 5 by thread cap internal whorl, air inlet pipe is enclosed within the top of pagoda joint 5.Nicking structure is processed in the outside of thread cap 6, and the material of screwed pipe joint uses politef.
Claims (2)
1. use for laboratory intubates a triangular flask, and its main body is triangular flask bottle, and triangular flask bottle includes bottleneck (1), air inlet (2), gas outlet (3)；Air inlet (2) and gas outlet (3) are sealed by glass tubing and connect, and stretch into the inside of triangular flask from the side intubating triangular flask, and gas outlet (3) are perpendicular to intubate at the bottom of the bottle of triangular flask；It is characterized in that: air inlet (2) is connected with screwed pipe joint, screwed pipe joint is made up of sealing ring (4), pagoda joint (5), thread cap (6), sealing ring (4) is enclosed within the draw-in groove of pagoda joint (5) bottom, pagoda joint (5) passes thread cap (6), making air inlet be tightly connected with pagoda joint (5) by thread cap internal whorl, air inlet pipe is enclosed within the top of pagoda joint (5).
The most according to claim 1, use for laboratory intubates triangular flask, it is characterised in that: nicking structure is processed in the outside of thread cap (6), and the material of screwed pipe joint uses politef.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620495971.2U CN205761223U (en) | 2016-05-29 | 2016-05-29 | Use for laboratory intubates triangular flask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620495971.2U CN205761223U (en) | 2016-05-29 | 2016-05-29 | Use for laboratory intubates triangular flask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205761223U true CN205761223U (en) | 2016-12-07 |
Family
ID=57407246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620495971.2U Active CN205761223U (en) | 2016-05-29 | 2016-05-29 | Use for laboratory intubates triangular flask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205761223U (en) |
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2016
- 2016-05-29 CN CN201620495971.2U patent/CN205761223U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |