CN209117637U - A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity - Google Patents
A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity Download PDFInfo
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- CN209117637U CN209117637U CN201821449225.5U CN201821449225U CN209117637U CN 209117637 U CN209117637 U CN 209117637U CN 201821449225 U CN201821449225 U CN 201821449225U CN 209117637 U CN209117637 U CN 209117637U
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- sodium hydroxide
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- carrier gas
- suction pipe
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Abstract
The utility model discloses a kind of sodium hydroxide liquid-adding devices for the detection of sulfur hexafluoride gas acidity, wherein: including sodium hydroxide liquid storage device, the inside of sodium hydroxide liquid storage device is equipped with liquid storage space, the top of sodium hydroxide liquid storage device offers filling opening, empty carrier gas air inlet and emptying carrier gas gas outlet, emptying is equipped with check valve on carrier gas gas outlet, sodium hydroxide liquid-adding device further includes pumping device, pumping device includes liquid suction pipe, liquid suction pipe one end is located in the sodium hydroxide solution in liquid storage space, the other end is pierced by sodium hydroxide liquid storage device and connect with sulfur hexafluoride gas acidity detector, one end that liquid suction pipe is located in sodium hydroxide solution is equipped with filter.The utility model has the advantages that can guarantee that concentration of sodium hydroxide solution is not affected by the external environment, the granule foreign in bottle in solution will not block liquid suction pipe or detecting instrument.
Description
Technical field
The utility model belongs to the technical field of gas acidity detection device, and in particular to one kind is used for sulfur hexafluoride gas
The sodium hydroxide liquid-adding device of acidity detection.
Background technique
Concentration of sodium hydroxide solution for the detection of sulfur hexafluoride gas acidity is fixed concentration standard solution, instrument operation
The titration detection that a certain amount of solution participates in sulfur hexafluoride gas acidity, concentration value are extracted in Shi Huicong sodium hydroxide solution bottle
Directly influence the accuracy of testing result.
Past is Conventional glass reagent bottle for the sodium hydroxide solution bottle of sulfur hexafluoride gas acidity detection, when drawing liquid only
Be to protrude into a pipe in bottle, both without filter device, also do not extract solution under closed environment, easily cause it is following after
Fruit:
1, the granule foreign in bottle in solution is pumped into instrument with liquid suction pipe and blocks valve；
2, carbon dioxide when open drawing liquid in air, the sour gas such as sulfur dioxide are easy anti-with sodium hydroxide solution
It answers, solution concentration is caused to be lower, to influence testing result.
Utility model content
Technical problem to be solved in the utility model is status in view of the above technology, and provides one kind and can guarantee hydroxide
Sodium solution concentration is not affected by the external environment, the granule foreign in bottle in solution will not block liquid suction pipe or detecting instrument is used for
The sodium hydroxide liquid-adding device of sulfur hexafluoride gas acidity detection.
To realize the above-mentioned technical purpose, the technical solution that the utility model is taken are as follows:
A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity, in which: including sodium hydroxide liquid storage
Device, the inside of sodium hydroxide liquid storage device are equipped with liquid storage space, and the top of sodium hydroxide liquid storage device offers filling opening, emptying carrier gas
Air inlet and emptying carrier gas gas outlet, sodium hydroxide solution known to the concentration of storage certain altitude, liquid feeding in liquid storage space
Mouth can inject sodium hydroxide solution to liquid storage space, and sealing cover is covered on filling opening, and emptying carrier gas air inlet can be to liquid storage sky
It is interior to be filled with emptying carrier gas, so that the sodium hydroxide solution upper space in liquid storage space is full of by emptying carrier gas completely, liquid storage
Emptying carrier gas in space can be discharged from emptying carrier gas gas outlet, empty and be equipped with check valve on carrier gas gas outlet, check valve makes
Outside air can not enter liquid storage space from emptying carrier gas gas outlet；Sodium hydroxide liquid-adding device further includes pumping device, drawing liquid
Device includes liquid suction pipe, and liquid suction pipe one end is located in the sodium hydroxide solution in liquid storage space, and the other end is pierced by sodium hydroxide liquid storage
Device is connect with sulfur hexafluoride gas acidity detector, and one end that liquid suction pipe is located in sodium hydroxide solution is equipped with filter, mistake
Filter is used to filter the granule foreign in sodium hydroxide solution, cannot be introduced into it in liquid suction pipe.
To optimize above-mentioned technical proposal, the concrete measure taken further include:
Above-mentioned filter includes pedestal, filter core, filter disc and footstock, and base bottom offers base holes, and top is upward
Extend to form the Chu Nazuo of annular, filter core and filter disc are sequentially arranged at storage from the bottom to top and receive in seat, and footstock is covered in storage
It receives on seat, footstock top is connect with drawing liquid tube end, and sodium hydroxide solution can enter filter from base holes, and successively through filtering
After core and filter disc, into liquid suction pipe.
Above-mentioned footstock upper end is equipped with butt joint, and butt joint is connected to Chu Na cavitys, and drawing liquid tube end is equipped with cutting ferrule,
Cutting ferrule can be inserted into butt joint, and footstock and liquid suction pipe is made to be fixed to each other by frictional force.
Above-mentioned liquid suction pipe is fixedly connected by grip cap with cutting ferrule.
Above-mentioned emptying carrier gas is high pure nitrogen.
One end that above-mentioned liquid suction pipe is pierced by sodium hydroxide liquid storage device is equipped with liquid suction pipe seal nipple, and seal nipple is fixed on
On the shell of sodium hydroxide liquid storage device, liquid suction pipe is pierced by the clearance seal between sodium hydroxide liquid storage device by seal nipple.
Air inlet seal nipple is installed at above-mentioned emptying carrier gas air inlet, air inlet seal nipple is fixed on hydroxide
On the shell of sodium liquid storage device, air inlet seal nipple is used to connect with chromatographic apparatus emptying carrier gas pipe, and chromatographic apparatus empties carrier gas
Guan Nengxiang empties the filling emptying carrier gas of carrier gas air inlet.
Above-mentioned filter core and filter disc can filter the granule foreign in sodium hydroxide solution more than 50 μm.
The material of above-mentioned sodium hydroxide liquid storage device is PTFE.
The sodium hydroxide liquid-adding device of the utility model, in order to guarantee outside air can not touch sodium hydroxide be easy it is molten
Liquid, by the carrier gas (carrier gas of the used discharge of sulfur hexafluoride chromatography purity detecting) of chromatographic apparatus emptying and emptying carrier gas air inlet
It is connected, the carrier gas of emptying will enter sodium hydroxide liquid storage device, be full of the space of sodium hydroxide liquid storage device internal upper part completely, and most
It is discharged to outside sodium hydroxide liquid storage device by check valve and carrier gas outlet eventually.In this way, it can guarantee that sodium hydroxide stores up
There will not be air in liquid device, the carrier gas overwhelming majority of instrument discharge is High Purity Nitrogen, and minute quantity is detection gas sulfur hexafluoride gas, this
Nearly all without containing the substance reacted with sodium hydroxide solution in two kinds of gases, therefore it can guarantee sodium hydroxide solution during drawing liquid
Concentration remains constant.Since the air outside solution bottle will not be pumped into bottle by the presence of check valve when instrument drawing liquid.This
Filter has also been devised in utility model, is mounted on sodium hydroxide liquid storage device bottom, may filter that in sodium hydroxide solution more than 50 um
Molecule impurity, guarantee that liquid suction pipe and detecting instrument will not block.
Detailed description of the invention
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure semi-cutaway of the utility model；
Fig. 3 is the structural schematic diagram of filter；
Fig. 4 is the top view of Fig. 2.
Appended drawing reference therein are as follows: sodium hydroxide liquid storage device 1, liquid storage space 1a, filling opening 2, sealing cover 21, emptying carrier gas
Air inlet 3, air inlet seal nipple 31, emptying carrier gas gas outlet 4, check valve 41, pumping device 5, liquid suction pipe 51, liquid suction pipe are close
Sealing joint 51a, filter 6, pedestal 61, base holes 61a, storage receive a 61b, filter core 62, filter disc 63, footstock 64, butt joint 64a,
Cutting ferrule 65, grip cap 66.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with attached drawing.
A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity of the utility model, in which: including
The inside of sodium hydroxide liquid storage device 1, sodium hydroxide liquid storage device 1 is equipped with liquid storage space 1a, and the top of sodium hydroxide liquid storage device 1 opens up
There are filling opening 2, emptying carrier gas air inlet 3 and emptying carrier gas gas outlet 4, has stored the concentration of certain altitude in the 1a of liquid storage space
The sodium hydroxide solution known, filling opening 2 can inject sodium hydroxide solution to liquid storage space 1a, be covered with sealing cover on filling opening 2
21, emptying carrier gas air inlet 3 can be filled with emptying carrier gas into liquid storage space 1a, so that the sodium hydroxide solution in the 1a of liquid storage space
Upper space is full of by emptying carrier gas completely, and the emptying carrier gas in the 1a of liquid storage space can be discharged from emptying carrier gas gas outlet 4, emptying
Check valve 41 is installed, it is empty that check valve 41 makes outside air that can not enter liquid storage from emptying carrier gas gas outlet 4 on carrier gas gas outlet 4
Between 1a；Sodium hydroxide liquid-adding device further includes pumping device 5, and pumping device 5 includes liquid suction pipe 51, and 51 one end of liquid suction pipe is located at storage
In the sodium hydroxide solution of liquid space 1a, the other end is pierced by sodium hydroxide liquid storage device 1 and sulfur hexafluoride gas acidity detector connects
It connects, one end that liquid suction pipe 51 is located in sodium hydroxide solution is equipped with filter 6, and filter 6 is used for will be in sodium hydroxide solution
Granule foreign filtering, cannot be introduced into it in liquid suction pipe 51.
In embodiment, filter 6 includes pedestal 61, filter core 62, filter disc 63 and footstock 64, and 61 bottom of pedestal offers bottom
Bore 61a, top, which upwardly extends, to be formed with the storage of annular and receives a 61b, and filter core 62 and filter disc 63 are sequentially arranged at storage from the bottom to top
It receives in a 61b, footstock 64 is covered in storage and receives on a 61b, and 64 top of footstock is connect with 51 end of liquid suction pipe, and sodium hydroxide is molten
Liquid can enter filter 6 from base holes 61a, and successively after filtration core 62 and filter disc 63, into liquid suction pipe 51.
In embodiment, 64 upper end of footstock is equipped with butt joint 64a, and butt joint 64a is connected to Chu Na 61b cavitys, liquid suction pipe
51 ends are equipped with cutting ferrule 65, and cutting ferrule 65 can be inserted into butt joint 64a, keep footstock 64 mutually solid by frictional force with liquid suction pipe 51
It is fixed.
In embodiment, liquid suction pipe 51 is fixedly connected by grip cap 66 with cutting ferrule 65.
In embodiment, emptying carrier gas is high pure nitrogen.
In embodiment, one end that liquid suction pipe 51 is pierced by sodium hydroxide liquid storage device 1 is equipped with liquid suction pipe seal nipple 51a, sealing
Connector 51a is fixed on the shell of sodium hydroxide liquid storage device 1, and liquid suction pipe 51 is pierced by sodium hydroxide liquid storage device 1 by seal nipple 51a
Between clearance seal.
It in embodiment, empties and air inlet seal nipple 31 is installed at carrier gas air inlet 3, air inlet seal nipple 31 is fixed
On the shell of sodium hydroxide liquid storage device 1, air inlet seal nipple 31 is used to connect with chromatographic apparatus emptying carrier gas pipe, chromatograph
Device empties the carrier gas Guan Nengxiang emptying filling emptying carrier gas of carrier gas air inlet 3.
In embodiment, filter core 62 and filter disc 63 can filter the granule foreign in sodium hydroxide solution more than 50 μm.
In embodiment, the material of sodium hydroxide liquid storage device 1 is PTFE.
The newly-designed device of the utility model is the closed solution bottle for having filtering function, and solution bottle material is
PTFE installs bottleneck bottle cap sealing after solution in bottle additional, and the carrier gas of instrument emptying is connected with carrier gas air inlet is emptied, emptying
Carrier gas will enter solution bottle, and be discharged to outside solution bottle eventually by check valve and carrier gas outlet.It is extracted under closed environment
Sodium hydroxide solution, since the air outside solution bottle will not be pumped into bottle by the presence of check valve, so that outside air be isolated
Middle carbon dioxide with and acidic materials and sodium hydroxide solution generate and chemically react.
Because the carrier gas overwhelming majority of instrument discharge is High Purity Nitrogen, minute quantity is detection gas sulfur hexafluoride gas, both
Nearly all without containing the substance reacted with sodium hydroxide solution in gas, therefore it can guarantee concentration of sodium hydroxide solution during drawing liquid
Remain constant.
Filter 6 uses filter core 62 and 63 double filtration of filter disc, guarantees that no more than 50 μm of granule foreign enters pumping
Liquid pipe 51, thus the problem of preventing pumping device blocking.
Above are merely preferred embodiments of the utility model, the protection scope of the utility model is not limited merely to above-mentioned
Embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should be pointed out that pair
For those skilled in the art, several improvements and modifications without departing from the principle of the utility model,
It should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity, it is characterized in that: including that sodium hydroxide stores up
The inside of liquid device (1), the sodium hydroxide liquid storage device (1) is equipped with liquid storage space (1a), the sodium hydroxide liquid storage device (1)
Top offer filling opening (2), emptying carrier gas air inlet (3) and emptying carrier gas gas outlet (4), the liquid storage space
Sodium hydroxide solution known to the concentration of storage certain altitude, the filling opening (2) can be infused to liquid storage space (1a) in (1a)
Enter sodium hydroxide solution, be covered on filling opening (2) sealing cover (21), the emptying carrier gas air inlet (3) can be to liquid storage sky
Between be filled with emptying carrier gas in (1a) so that the sodium hydroxide solution upper space in liquid storage space (1a) is filled by emptying carrier gas completely
Reprimand, the emptying carrier gas in liquid storage space (1a) can be discharged from emptying carrier gas gas outlet (4), the emptying carrier gas gas outlet (4)
On be equipped with check valve (41), the check valve (41) make outside air can not from emptying carrier gas gas outlet (4) enter liquid storage
Space (1a)；Sodium hydroxide liquid-adding device further includes pumping device (5), and the pumping device (5) includes liquid suction pipe (51), institute
Liquid suction pipe (51) one end stated is located in the sodium hydroxide solution in liquid storage space (1a), and the other end is pierced by sodium hydroxide liquid storage device
(1) it is connect with sulfur hexafluoride gas acidity detector, the liquid suction pipe (51) is located at the installation of one end in sodium hydroxide solution
Have filter (6), the filter (6) is used to filter the granule foreign in sodium hydroxide solution, it is made to cannot be introduced into pumping
In liquid pipe (51).
2. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 1, special
Sign is: the filter (6) includes pedestal (61), filter core (62), filter disc (63) and footstock (64), the pedestal (61)
Bottom offers base holes (61a), and top upwardly extends the Chu Nazuo (61b) for being formed with annular, the filter core (62) and filter
Piece (63) is sequentially arranged at from the bottom to top in Chu Nazuo (61b), and the footstock (64) is covered on Chu Nazuo (61b),
Footstock (64) top is connect with liquid suction pipe (51) end, and sodium hydroxide solution can enter filter from base holes (61a)
(6), and successively after filtration core (62) and filter disc (63), into liquid suction pipe (51).
3. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 2, special
Sign is: footstock (64) upper end is equipped with butt joint (64a), and butt joint (64a) is connected to Chu Nazuo (61b) cavity, described
Liquid suction pipe (51) end be equipped with cutting ferrule (65), the cutting ferrule (65) can be inserted into butt joint (64a), make footstock (64) with
Liquid suction pipe (51) is fixed to each other by frictional force.
4. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 3, special
Sign is: the liquid suction pipe (51) is fixedly connected by grip cap (66) with cutting ferrule (65).
5. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 4, special
Sign is: the emptying carrier gas is high pure nitrogen.
6. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 5, special
Sign is: one end that the liquid suction pipe (51) is pierced by sodium hydroxide liquid storage device (1) is equipped with liquid suction pipe seal nipple (51a), described
Seal nipple (51a) be fixed on the shell of sodium hydroxide liquid storage device (1), liquid suction pipe (51) is pierced by by seal nipple (51a)
Clearance seal between sodium hydroxide liquid storage device (1).
7. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 6, special
Sign is: being equipped with air inlet seal nipple (31) at the emptying carrier gas air inlet (3), the air inlet seal nipple
(31) it is fixed on the shell of sodium hydroxide liquid storage device (1), air inlet seal nipple (31) is used to empty carrier gas with chromatographic apparatus
Pipe connection, chromatographic apparatus emptying carrier gas Guan Nengxiang emptying carrier gas air inlet (3) the filling emptying carrier gas.
8. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 7, special
Sign is: the filter core (62) and filter disc (63) can filter the granule foreign in sodium hydroxide solution more than 50 μm.
9. a kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity according to claim 8, special
Sign is: the material of the sodium hydroxide liquid storage device (1) is PTFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821449225.5U CN209117637U (en) | 2018-09-05 | 2018-09-05 | A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821449225.5U CN209117637U (en) | 2018-09-05 | 2018-09-05 | A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity |
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| Publication Number | Publication Date |
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| CN209117637U true CN209117637U (en) | 2019-07-16 |
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| CN201821449225.5U Active CN209117637U (en) | 2018-09-05 | 2018-09-05 | A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374797A (en) * | 2018-09-05 | 2019-02-22 | 徐军 | A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity |
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2018
- 2018-09-05 CN CN201821449225.5U patent/CN209117637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374797A (en) * | 2018-09-05 | 2019-02-22 | 徐军 | A kind of sodium hydroxide liquid-adding device for the detection of sulfur hexafluoride gas acidity |
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