CN105203385B - The molten sampling device and application method of a kind of hydrofluoric acid resistant - Google Patents
The molten sampling device and application method of a kind of hydrofluoric acid resistant Download PDFInfo
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- CN105203385B CN105203385B CN201510743705.7A CN201510743705A CN105203385B CN 105203385 B CN105203385 B CN 105203385B CN 201510743705 A CN201510743705 A CN 201510743705A CN 105203385 B CN105203385 B CN 105203385B
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Abstract
The present invention relates to the molten sampling device and application method of a kind of hydrofluoric acid resistant.Its technical scheme is：The upper end of molten sample container (3) and the annular boss for absorbing groove (2) bottom are mutually embedding, and the lower end of non-return relief valve (1) is inserted in the annular groove (10) for absorbing groove (2) bottom.Molten sample container (3) is short cylinder shape container；Absorb plane on bottom land of the cell body openend of groove (2) with absorbing groove (2) and be linked as entirety, cell body blind end is provided with mounting hole (8), non-return relief valve (1) is inserted in absorption groove (2) from mounting hole (8), and the center of bottom land is provided with passage (9).The valve element (6) of non-return relief valve (1) is concentrically inserted in valve body (5), and the edge of valve body (5) is symmetrically provided with exhaust vent (7)；The upper end surface of the cylinder of valve element (6) is diametrically provided with horizontal valve road, and the lower surface of cylinder is provided with vertical valve road along center line upwards, and vertical valve road is communicated with horizontal valve road.The present invention has simple in construction, easy to operate, sour consumption reduction, cost is low, can collect the characteristics of spent acid and environmental protection.
Description
Technical field
The invention belongs to the molten sampling device technical field of sample.The molten sampling device of specifically related to a kind of hydrofluoric acid resistant and user
Method.
Background technology
At present, the molten sample acid of hydrofluoric acid containing is widely used in sample of the dissolution process containing silica, elemental silicon and silicate,
The sample of dissolving is determined for chemical constituent.Typical application such as conventional abrasive Wilicon carbide analysis method (GB/T3045-2003),
Measure (YB/T175-2000) of carborundum etc. in diamond dust.Traditional sour sample-dissoloing unit ware is to open wide or with one-way exhaust closure
The container of (such as lid formula funnel).Acid dissolution generally requires the acidity for remaining certain and time, in heating acid dissolution, largely
Acid evaporation, not only make acid utilization ratio reduce while discharging substantial amounts of spent acid gas.During the sealing dissolving of capping formula funnel, stop
Only heat or stop after exhaust, sealing fluid can resorption；If prevent resorption, the negative pressure that molten sampling device is present is difficult to closure
Open.
Above method problem is：1st, sour evaporation rate is fast at ambient pressure；2nd, it is sour needed for maintenance certain reaction time
Consumption is big, wastes big；3rd, the spent acid of evaporation is directly discharged into air, and processing is difficult.
The content of the invention
It is contemplated that overcoming prior art defect, it is therefore an objective to provide a kind of simple in construction, easy to operate, sour consumption it is few,
Cost is low and is easy to the molten sampling device and application method of the hydrofluoric acid resistant of spent acid gas collection processing.
To achieve the above object, the technical solution adopted by the present invention is：The molten sampling device is by non-return relief valve, absorption groove
With molten sample container composition.The upper end of molten sample container and the annular boss for absorbing trench bottom are mutually embedding, and the lower end of non-return relief valve is inserted
In the annular groove for absorbing trench bottom, center line, the center line of absorption groove and the center line of molten sample container of non-return relief valve are same
Straight line.
Molten sample container is short cylinder shape container, and the short cylinder shape container refers to that the cylinder heights are less than drum diameter
Container.
Groove is absorbed to be made up of bottom land and cell body.Bottom land is in the form of annular discs, and the outer rim of bottom land lower plane is annular boss, convex annular
The internal diameter of platform is identical with the nominal size of molten sample its external diameter, and the center position of bottom land is provided with passage, the upper plane of bottom land
Concentrically it is provided with annular groove；Cell body is identical with the shape of molten sample container, and the openend of cell body and the upper plane of bottom land are linked as whole
Body, upward, the end face of blind end is provided with mounting hole to the blind end of cell body.Non-return relief valve inserts absorption groove from the mounting hole
It is interior.
Non-return relief valve is made up of valve body and valve element, and valve element is inserted in valve body with center line.Valve body is cylindrical, cylinder
Down, the edge of nozzle is symmetrically provided with " u "-shaped or square exhaust vent to nozzle, and the center position at cylinder cylinder bottom is set
There is spool bore, the valve rod of valve element is passed from the spool bore.Valve element is the entirety that cylinder and valve rod are constituted, the upper end of cylinder
Face is provided with valve rod with center line, horizontal valve road is diametrically provided with the upper end surface close to cylinder, in cylinder
Lower surface is provided with vertical valve road along center line upwards, and the vertical valve road is communicated with horizontal valve road.
The diameter d of the passage1For the vertical valve road diameter d22 ~ 3 times.
The gap of the valve body and valve core chamber is 0.1 ~ 2mm.
The groove and the material of molten sample container of absorbing is polytetrafluoroethylene (PTFE).
The volume of described absorption groove is 5 ~ 100mL.
The application method of the molten sampling device of the hydrofluoric acid resistant is：Sample is put into molten sample container, into molten sample container
1 ~ 50ml molten sample acid is added, the absorption groove equipped with non-return relief valve is covered, then to the absorbing liquid for absorbing groove and adding 1 ~ 50ml；So
The molten sampling device of hydrofluoric acid resistant is moved on heater afterwards, heated, until course of dissolution is completed；Remove the molten sample dress of hydrofluoric acid resistant
Put, cool down, take out treated product.
Described molten sample acid mix for one or more of hydrofluoric acid and following acid, described following sour for nitric acid, hydrochloric acid, height
Chloric acid and sulfuric acid.
Described absorbing liquid is one kind in water, limewash and sodium hydroxide solution.
Due to using above-mentioned technical proposal, the present invention compared with prior art, with following good effect：
1st, the present apparatus is only made up of non-return relief valve, absorption groove and molten sample container, simple in construction；In addition, absorbing the ring of groove
Shape boss internal diameter is identical with the external diameter of molten sample container, by the gravity and molten sample container for absorbing groove, non-return relief valve and absorbing liquid
Tension force synergy when heated reaches sealing, pressure limiting exhaust, without seal.
2nd, the present apparatus is when course of dissolution is completed or molten sample container stops heating, and the pressure in molten sample container declines, and inhales
The absorbing liquid liquid level received in groove declines, and the buoyancy that valve element is subject to reduces, and valve element falls automatically, and closing waste gas arranges its gas port, passes through
Vertical valve road is communicated with air, pressure release, therefore easy to operate.
3rd, the present apparatus is in the presence of non-return relief valve, and acid vapor is by the pressure of absorbing liquid, and molten sample acid can hold in molten sample
Flowed back in device, sour evaporation rate is slow, therefore sour consumption can be reduced, reduce cost.
4th, when the molten sample container of the present apparatus is heated, acid vapor holds out against valve element upwards, and steam is discharged into suction from waste gas round
Groove is received, therefore waste gas can be collected and be conducive to environmental protection.
Therefore, the present invention has simple in construction, easy to operate, sour consumption reduction, cost is low, can collect spent acid and green ring
The characteristics of guarantor.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the invention；
Fig. 2 is the structural representation of non-return relief valve 1 in Fig. 1；
Fig. 3 is the structural representation of absorption groove 2 in Fig. 1；
Fig. 4 is Fig. 1 use schematic diagram.
Embodiment
The present invention is described further with reference to the accompanying drawings and detailed description, not to the limit of its protection domain
System.
Embodiment 1
The molten sampling device and application method of a kind of hydrofluoric acid resistant.As shown in figure 1, the molten sampling device by non-return relief valve 1,
Absorb groove 2 and molten sample container 3 is constituted.The upper end of molten sample container 3 and the annular boss for absorbing the bottom of groove 2 are mutually embedding, non-return relief valve 1
Lower end insert in the annular groove 10 for absorbing groove 2 bottom, the center line of non-return relief valve 1, the center line and molten sample for absorbing groove 2 hold
The center line of device 3 is same straight line.
As shown in figure 1, molten sample container 3 is short cylinder shape container, the short cylinder shape container refers to that the cylinder heights are small
In the container of drum diameter.
As shown in figures 1 and 3, groove 2 is absorbed to be made up of bottom land and cell body.Bottom land is in the form of annular discs, the outer rim of bottom land lower plane
For annular boss, the internal diameter of annular boss is identical with the nominal size of the molten external diameter of sample container 3, and the center position of bottom land is provided with logical
Stomata 9, the upper plane of bottom land is concentrically provided with annular groove 10；Cell body is identical with the shape of molten sample container 3, the openend of cell body
Entirety is linked as with the upper plane of bottom land, upward, the end face of blind end is provided with mounting hole 8 to the blind end of cell body.Non-return relief valve 1 from
The mounting hole 8 is inserted in absorption groove 2.
As depicted in figs. 1 and 2, non-return relief valve 1 is made up of valve body 5 and valve element 6, and valve element 6 inserts valve body 5 with center line
It is interior.Valve body 5 is cylindrical, and down, the edge of nozzle is symmetrically provided with " u "-shaped or square exhaust vent 7 to cylinder nozzle,
The center position at cylinder cylinder bottom is provided with spool bore 4, and the valve rod of valve element 6 is passed from the spool bore 4.Valve element 6 be cylinder and
The entirety of valve rod composition, the upper surface of cylinder is provided with valve rod with center line, in the upper end surface close to cylinder diametrically
Direction is provided with horizontal valve road, is provided with vertical valve road, the vertical valve road and level upwards along center line in the lower surface of cylinder
Valve road is communicated.
The diameter d of the passage 91For the vertical valve road diameter d22 ~ 2.5 times.
Gap between the valve body 5 and valve element 6 is 1.0 ~ 2mm.
The groove 2 and the material of molten sample container 3 of absorbing is polytetrafluoroethylene (PTFE).
The volume of described absorption groove 2 is 60 ~ 100mL.
The application method of the molten sampling device of the hydrofluoric acid resistant is as shown in Figure 4：Sample 11 is put into molten sample container 3, to
30 ~ 50ml molten sample acid 12 is added in molten sample container 3, the absorption groove 2 equipped with non-return relief valve 1 is covered, then add to groove 2 is absorbed
30 ~ 50ml absorbing liquid 13；Then the molten sampling device of hydrofluoric acid resistant is moved on heater, heated, until course of dissolution is completed；
The molten sampling device of hydrofluoric acid resistant is removed, is cooled down, treated product is taken out.
Described molten sample acid 12 is the mixture of hydrofluoric acid and nitric acid.
Described absorbing liquid 13 is water.
Embodiment 2
The molten sampling device and application method of a kind of hydrofluoric acid resistant.In addition to following technical parameters, remaining be the same as Example 1：
The diameter d of the passage 91For the vertical valve road diameter d22.5 ~ 3 times.
Gap between the valve body 5 and valve element 6 is 0.1 ~ 1.2mm.
The volume of described absorption groove 2 is 5 ~ 60mL.
1 ~ 30ml molten sample acid 12 is added into molten sample container 3, the absorption groove 2 equipped with non-return relief valve 1 is covered, then to suction
Receive the absorbing liquid 13 that groove 2 adds 1 ~ 30ml.
Described molten sample acid 12 is hydrofluoric acid mix with one or more of following acid, described following sour for hydrochloric acid, high chlorine
Acid and sulfuric acid.
Described absorbing liquid 13 is one kind in limewash and sodium hydroxide solution.
Present embodiment compared with prior art, with following good effect：
1st, the present apparatus is only made up of non-return relief valve 1, absorption groove 2 and molten sample container 3, simple in construction；In addition, absorbing groove 2
Annular boss internal diameter it is identical with the external diameter of molten sample container 3, by absorbing groove, the gravity of non-return relief valve and absorbing liquid and molten sample
The synergy of tension force when container 3 is heated reaches sealing, pressure limiting exhaust, without seal.
2nd, the present apparatus is when course of dissolution is completed or molten sample container 3 stops heating, and the pressure in molten sample container 3 declines, and inhales
The absorbing liquid liquid level received in groove 2 declines, and the buoyancy that valve element 6 is subject to reduces, and valve element 6 falls automatically, closes exhaust vent 7, leads to
Cross vertical valve road to communicate with air, pressure release, thus it is easy to operate.
3rd, the present apparatus is in the presence of non-return relief valve 1, and acid vapor is by the pressure of absorbing liquid 13, and molten sample acid 12 can be molten
Flowed back in sample container 3, sour evaporation rate is slow, therefore sour consumption can be reduced, reduce cost.
4th, when the molten sample container 3 of the present apparatus is heated, acid vapor holds out against valve element 6 upwards, and steam is from the row of exhaust vent 7
Enter to absorb groove 2, therefore waste gas can be collected and be conducive to environmental protection.
Therefore, present embodiment has simple in construction, easy to operate, sour consumption reduction, cost is low, can collect spent acid
And the characteristics of environmental protection.
Claims (8)
1. the molten sampling device of a kind of hydrofluoric acid resistant, it is characterised in that the molten sampling device is by non-return relief valve (1), absorption groove (2)
With molten sample container (3) composition；The upper end of molten sample container (3) and the annular boss for absorbing groove (2) bottom are mutually embedding, non-return relief valve
(1) lower end is inserted in the annular groove (10) for absorbing groove (2) bottom, the center line of non-return relief valve (1), is absorbed in groove (2)
The center line of heart line and molten sample container (3) is same straight line；
Molten sample container (3) is short cylinder shape container, and the short cylinder shape container refers to that the cylinder heights are less than drum diameter
Container；
Groove (2) is absorbed to be made up of bottom land and cell body；Bottom land is in the form of annular discs, and the outer rim of bottom land lower plane is annular boss, convex annular
The internal diameter of platform is identical with the nominal size of molten sample container (3) external diameter, and the center position of bottom land is provided with passage (9), bottom land
Upper plane is concentrically provided with annular groove (10)；Cell body is identical with the shape of molten sample container (3), the openend of cell body and bottom land
Upper plane is linked as entirety, and upward, the end face of blind end is provided with mounting hole (8) to the blind end of cell body；Non-return relief valve (1) is from described
Mounting hole (8) is inserted in absorption groove (2)；
Non-return relief valve (1) is made up of valve body (5) and valve element (6), and valve element (6) is inserted with center line in valve body (5)；Valve body
(5) cylindrical, down, the edge of nozzle is symmetrically provided with " u "-shaped or square exhaust vent (7) to cylinder nozzle, circle
The center position at cylinder cylinder bottom is provided with spool bore (4), and the valve rod of valve element (6) is passed from the spool bore (4)；Valve element (6) is circle
The entirety of cylinder and valve rod composition, the upper surface of cylinder is provided with valve rod with center line, in the upper end surface close to cylinder
Horizontal valve road is diametrically provided with, vertical valve road, the vertical valve road is provided with upwards along center line in the lower surface of cylinder
Communicated with horizontal valve road.
2. the molten sampling device of hydrofluoric acid resistant according to claim 1, it is characterised in that the diameter d of the passage (9)1For institute
State vertical valve road diameter d22~3 times.
3. the molten sampling device of hydrofluoric acid resistant according to claim 1, it is characterised in that between the valve body (5) and valve element (6)
Gap is 0.1~2mm.
4. the molten sampling device of hydrofluoric acid resistant according to claim 1, it is characterised in that the absorption groove (2) and molten sample container
(3) material is polytetrafluoroethylene (PTFE).
5. the molten sampling device of hydrofluoric acid resistant according to claim 1, it is characterised in that the volume of described absorption groove (2) is 5
~100mL.
6. a kind of application method of the molten sampling device of hydrofluoric acid resistant as claimed in claim 1, it is characterised in that the application method
It is：Sample (11) is put into molten sample container (3), it is sour (12) to the interior molten sample for adding 1~50ml of molten sample container (3), cover dress
There is an absorption groove (2) of non-return relief valve (1), then to the absorbing liquid (13) for absorbing groove (2) and adding 1~50ml；Then by resistant to hydrogen fluorine
The molten sampling device of acid is moved on heater, is heated, until course of dissolution is completed；The molten sampling device of hydrofluoric acid resistant is removed, cools down, takes
Go out treated product.
7. the application method of the molten sampling device of hydrofluoric acid resistant according to claim 6, it is characterised in that described molten sample acid
(12) mix for one or more of hydrofluoric acid and following acid, it is described following sour for nitric acid, hydrochloric acid, perchloric acid and sulfuric acid.
8. the application method of the molten sampling device of hydrofluoric acid resistant according to claim 6, it is characterised in that described absorbing liquid
(13) it is one kind in water, limewash and sodium hydroxide solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743705.7A CN105203385B (en) | 2015-11-05 | 2015-11-05 | The molten sampling device and application method of a kind of hydrofluoric acid resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510743705.7A CN105203385B (en) | 2015-11-05 | 2015-11-05 | The molten sampling device and application method of a kind of hydrofluoric acid resistant |
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| Publication Number | Publication Date |
|---|---|
| CN105203385A CN105203385A (en) | 2015-12-30 |
| CN105203385B true CN105203385B (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510743705.7A Expired - Fee Related CN105203385B (en) | 2015-11-05 | 2015-11-05 | The molten sampling device and application method of a kind of hydrofluoric acid resistant |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107768274A (en) * | 2016-08-22 | 2018-03-06 | 盛美半导体设备（上海）有限公司 | A kind of mixed liquid bath |
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| CN201464272U (en) * | 2009-06-23 | 2010-05-12 | 郑啟光 | High-temperature and high-pressure resistant anti-leak digestion sample dissolver |
| CN201795268U (en) * | 2010-03-24 | 2011-04-13 | 孔令石 | Piston type leak-proof gas valve for gas liquor discharge |
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| CN103245553A (en) * | 2013-05-24 | 2013-08-14 | 中国热带农业科学院分析测试中心 | Environment-friendly high-efficiency acid reflux collection-type element analysis sample digestion method |
| CN205091180U (en) * | 2015-11-05 | 2016-03-16 | 中船重工特种设备有限责任公司 | A device of nai hydrofluoric acid for dissolving sample |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6761190B2 (en) * | 2002-06-21 | 2004-07-13 | Gilbarco Inc. | Underground storage tank vapor pressure equalizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1652214A1 (en) * | 1989-06-19 | 1991-05-30 | Куйбышевский политехнический институт им.В.В.Куйбышева | Breather of tank for volatile liquids |
| US5345066A (en) * | 1991-03-18 | 1994-09-06 | Knapp Guenter | Device for heating substances under the development of high pressures in a microwave field |
| CN201023797Y (en) * | 2007-01-18 | 2008-02-20 | 广东西陇化工有限公司 | Closing device of container for loading decomposable or volatile matter |
| CN201148262Y (en) * | 2008-01-29 | 2008-11-12 | 冀州市中意复合材料有限公司 | Acid container respirator |
| CN201464272U (en) * | 2009-06-23 | 2010-05-12 | 郑啟光 | High-temperature and high-pressure resistant anti-leak digestion sample dissolver |
| CN201795268U (en) * | 2010-03-24 | 2011-04-13 | 孔令石 | Piston type leak-proof gas valve for gas liquor discharge |
| CN202107249U (en) * | 2011-06-21 | 2012-01-11 | 李世强 | Liquid division type hydraulic relief valve |
| CN202330139U (en) * | 2011-11-29 | 2012-07-11 | 孙文军 | Efficient sample-dissolving equipment |
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| CN105203385A (en) | 2015-12-30 |
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