CN109100208A - High-pressure digestion tank - Google Patents
High-pressure digestion tank Download PDFInfo
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- CN109100208A CN109100208A CN201710469755.XA CN201710469755A CN109100208A CN 109100208 A CN109100208 A CN 109100208A CN 201710469755 A CN201710469755 A CN 201710469755A CN 109100208 A CN109100208 A CN 109100208A
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- Prior art keywords
- lid
- inner canister
- outer tank
- tank
- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of high-pressure digestion tanks, are related to pressure vessel technology field, for solving the technical issues of inner canister existing in the prior art is easy hair deformation, makes its reduced service life, increased costs.High-pressure digestion tank provided by the invention, including lid and outer tank, outer tank is internally provided with inner canister, inner canister is made of quartz, therefore its stability is good, compactness is high, makes it be not susceptible to deform during crude oil resolution, to hold its seal under, the phenomenon that capable of preventing acid liquor leakage, its service life can be improved；And the resistance to pressure and compactness due to quartz material are higher, are more suitable for using in the environment of high temperature and pressure.
Description
Technical field
The present invention relates to pressure vessel technology field, a kind of particularly high-pressure digestion tank.
Background technique
The microelement based on metallic element, Xue Zheyun are widely present in crude oil, pitch and rock organic matter
With trace element data, carries out oil-gas exploration research and oil and gas geochemistry research in terms of inorganic geochemistry, excavate
Geochemical information discloses Geochemical Characteristics with this, and auxiliary solves the problems, such as that some organic geochemistries are insoluble, and
Achieve some research achievements.At present for crude oil substance, the analysis method that China uses for atomic absorption spectrography (AAS) and is waited
Ion emission spectroscopy method, sample pre-treatments use high temperature ashing method and organic solvent diluting method, and U.S. ASTM also uses similar side
Method.But high temperature ashing method is complicated for operation, the time is tediously long, pollution environment and sample loss are big；Organic solvent diluting direct-injection technique
It is influenced very greatly by sample viscosity, analysis precision is not high, while a large amount of hydrocarbon introduces instrument plasma torch, is allowed to hold
Easily be quenched with it is unstable.Simultaneously as oil standard substance is difficult to obtain, and it is expensive, so that analysis method is very limited.Cause
This crude oil sample must can just obtain accurate detection result by being acidified resolution.Due to the characteristic of crude oil, generally using closed
Resolution method, it is easier to accurate result is obtained, such as Microwave Digestion and pressure pan resolution method.Wherein, Microwave Digestion is a kind of fast
The method of speed resolution sample is not suitable for carrying out batch samples to analysis because of its sampling amount, the limitation of analysis speed；Therefore existing
Some, which clear up to crude oil, generally takes pressure pan resolution method, this kind of method relies primarily on baking oven heating, heating.Pressure pan disappears
Solution is to carry out Specimen eliminating in the environment of high temperature high pressure enclosed strong acid, digestion process can be made to shorten dramatically, and tested component
Volatilization loss be minimized, the accuracy of measurement is provided, be especially suitable for batch sample resolution.
The inner canister of current existing high-pressure digestion tank is usually polytetrafluoroethylplastic plastic material, polytetrafluoroethylene (PTFE) material container
Generally using temperature at 260 DEG C hereinafter, but hermetic type counteracting tank is influenced by temperature and pressure simultaneously, therefore in temperature mistake
It is easily deformed when high (220 DEG C or more) or pressure excessive (5MPa or more), acid liquor leakage sample loss is caused, so that inner canister
Reduced service life, increased costs are not suitable for being also easy to produce the resolution of the crude oil sample of high-pressure situations in digestion process.
Summary of the invention
The present invention provides a kind of high-pressure digestion tank, is easy hair deformation for solving inner canister existing in the prior art, makes it
The technical issues of reduced service life, increased costs.
The present invention provides a kind of high-pressure digestion tank, including lid and outer tank, and the lid is connected together with the outer tank；Institute
The inner canister that is internally provided with of outer tank is stated, the inner canister is made of quartz.
According to one embodiment of present invention, lipped configuration, the bottom of the inner canister are provided at the tank mouth of the inner canister
It is configured to spherical shape.
According to one embodiment of present invention, the top of the inner canister is disposed with teflon seal from top to bottom
Pad, quartzy sealing-plug and polytetrafluoroethylene (PTFE) pressure pad；
The polytetrafluoroethylene sealing gasket is O shape gasket, and the quartz sealing-plug is configured to T shape, the quartz sealing
The lower end of plug passes through the polytetrafluoroethylene sealing gasket and is arranged in the inner canister.
According to one embodiment of present invention, protective cradle, the protection are provided between the inner canister and the outer tank
Bracket is made of polytetrafluoroethylene (PTFE)；
The protective cradle is configured to barrel-shaped, and the bottom surface inside the protective cradle is configured to the bottom with the inner canister
The spherical bottom matched.
According to one embodiment of present invention, the bottom of the protective cradle, which is provided with, unloads sample hole.
According to one embodiment of present invention, lid clamp raised inwardly, institute are provided on the inner wall of the lid
It states and is provided with outer tank clamp raised outward on the outer wall of outer tank, the lid clamp is mutually clamped with the outer tank clamp.
According to one embodiment of present invention, the lid clamp is identical with the quantity of the outer tank clamp, and is 2-6
It is a；
Periphery equidistantly distributed of the lid clamp along the lid, circumference of the outer tank clamp along the outer tank
Face equidistantly distributed.
According to one embodiment of present invention, the bottom of the outer tank is provided with fixation hole, and the fixation hole is square hole.
According to one embodiment of present invention, it is provided with compression bolts at the top of the lid, is set on the compression bolts
It is equipped with torsion jack；
The bottom end of the compression bolts is in contact with the top of the polytetrafluoroethylene sealing gasket.
According to one embodiment of present invention, the lid, the outer tank and the compression bolts by stainless steel or
Alloy material is made, and the outer surface of the lid, the outer tank and the compression bolts is provided with polytetrafluoroethylene (PTFE) painting
Layer.
Compared with the prior art, the advantages of the present invention are as follows:
(1) it is made due to inner canister of quartz, stability is good, compactness is high, makes it during crude oil resolution
It is not susceptible to deform, thus the phenomenon that holding its seal under, acid liquor leakage can be prevented, its service life can be improved；
And the resistance to pressure and compactness due to quartz material are higher, are more suitable for using in the environment of high temperature and pressure.
(2) tank mouth of inner canister is designed using lip shape, and bottom is spherical bottom, and sample, acid solution can be made easily to assemble, connect
Touching is more abundant, to guarantee the effect of resolution；Furthermore it is close that polytetrafluoroethylene sealing gasket, the quartz of T shape are respectively arranged in inner canister
Blocking and polytetrafluoroethylene (PTFE) pressure pad, make the better tightness of inner canister.
(3) protective cradle is provided between inner and outer tank, protective cradle can expand deformation when heated, to support
Disappear pressure of the part from inner canister, therefore can play the role of protection to inner canister；The effect of protective cradle expanded by heating simultaneously
Power can also make the better tightness of inner canister, and acid gas is not easy to reveal.
(4) using being connected together between lid and outer tank, convenient and efficient, safety is fastened, it can be quick by compression bolts
The sealing between lid and outer tank and inner canister is completed on ground, saves a large amount of pre-treatment operating time.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 is the explosive view of the high-pressure digestion tank in the embodiment of the present invention；
Fig. 2 is the cross-sectional view of the high-pressure digestion tank in the embodiment of the present invention；
Fig. 3 is the schematic perspective view of inner canister shown in Fig. 1；
Fig. 4 is the cross-sectional view of inner canister described in Fig. 1；
Fig. 5 is the cross-sectional view of protective cradle shown in Fig. 1；
Fig. 6 is the cross-sectional view of outer tank shown in Fig. 1.
Appended drawing reference:
1- lid；2- outer tank；3- compression bolts；
4- inner canister；5- protective cradle；6- polytetrafluoroethylene sealing gasket；
7- quartz sealing-plug；8- polytetrafluoroethylene (PTFE) pressure pad；11- lid clamp；
21- outer tank clamp；22- fixation hole；31- torsion jack；
41- lip type structure；51- unloads sample hole.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is the flow chart of one of embodiment of the present invention high-pressure digestion tank；As illustrated in fig. 1 and 2, the present invention provides one
Kind of high-pressure digestion tank, is particularly suitable for the resolution of crude oil sample, simple, convenient and practical, not only increase safety and
And the efficiency of pre-treatment is improved, it is suitble to the resolution of batch sample.
Specifically, high-pressure digestion tank provided by the invention includes lid 1 and outer tank 2, and lid 1 is connected together with outer tank 2；Outside
Tank 2 is internally provided with inner canister 4, and inner canister 4 is made of quartz.
Since the inner canister in existing high-pressure digestion tank mostly uses polytetrafluoroethylene (PTFE) to be made, due to polytetrafluoroethylene (PTFE) material
Compactness is not high, therefore in the environment of high temperature and pressure, i.e., when temperature is higher than 220 DEG C or pressure is greater than 5MPa, inner canister is easy to
It deforms, to make the acid liquor leakage in inner canister, not only loses sample, but also shorten the service life of inner canister.And this hair
Inner canister 4 in bright is made of quartz material, since the compactness of quartz material is high, makes that the stability of inner canister is good, is not easy
It deforms, to improve its service life.
Further, as shown in Figures 3 and 4, lipped configuration 41 is provided at the tank mouth of inner canister 4, the bottom of inner canister 4 is configured to
It is spherical.
Specifically, lipped configuration 41 can be divided into Y shape, V-arrangement, U-shaped, L shape etc. according to section configuration.As shown in figure 4, lip type knot
The section of structure 41 is V-arrangement.Lipped configuration 41 has self-tightening, it is close to sealed coupling part surface, obstruction leakage by lip
Channel and obtain sealing effect.Change since the sealing pressing force of lipped configuration 41 is the change with pressure medium,
It with the variation of pressure medium when in work always, not only can guarantee enough sealing pressing forces, but also be unlikely to generate excessive friction
Power.
In addition, the bottom of inner canister 4 is spherical structure, so that the sample and acid solution in inner canister 4 are easier to assemble, to make sample
Contact of the product with acid solution is more abundant, makes the more thorough of Specimen eliminating.
In the present embodiment, the top of inner canister 4 is disposed with polytetrafluoroethylene sealing gasket 6, quartz sealing from top to bottom
Plug 7 and polytetrafluoroethylene (PTFE) pressure pad 8.
Wherein, polytetrafluoroethylene sealing gasket 6 is O shape gasket, and quartzy sealing-plug 7 is configured to T shape, quartzy sealing-plug 7
Lower end passes through polytetrafluoroethylene sealing gasket 6 and is arranged in inner canister 4.It is provided with three-level seal approach at the tank mouth of inner canister 4, with
Guarantee the leakproofness of inner canister 4.
In one embodiment, protective cradle 5 is provided between inner canister 4 and outer tank 2, protective cradle 5 is by polytetrafluoroethylene (PTFE)
It is made.
Specifically, protective cradle 5 is configured to barrel-shaped, and the bottom surface inside protective cradle 5 is configured to the bottom phase with inner canister 4
The spherical bottom of cooperation.
Protective cradle 5 is made of polytetrafluoroethylene (PTFE), therefore deformation can be expanded when heated, on the one hand passes through deformation
Pressure of the part from inner canister 4 can be offset, plays the role of protection to inner canister 4；On the other hand, can make to protect by its deformation
Shield bracket 5 is closer with being bonded between inner canister 4 and outer tank 2, is more advantageous to the sealing of inner canister 4, prevents acid gas in inner canister 4 from occurring
Leakage.
In addition, the bottom surface outside protective cradle 5 is plane, can be stably placed in outer tank 2；As shown in figure 5, inside it
Bottom surface be the spherical structure matched with the bottom of inner canister 4, can be in close contact with inner canister 4, better guarantor is played to inner canister 4
Shield effect.
In the present embodiment, the bottom of protective cradle 5, which is provided with, unloads sample hole 51.
Optionally, unloading sample hole 51 is circular hole, and the axis for unloading sample hole 52 is overlapped with the axis of protective cradle 51, works as Specimen eliminating
After, since protective cradle 5 produces deformation, pole can be inserted into and unload in sample hole 51 and eject inner canister 4, make inner canister
4 and protective cradle 5 can be easily disengaged and come.
In one embodiment, lid clamp 11 raised inwardly, the outer wall of outer tank 2 are provided on the inner wall of lid 1
On be provided with outward raised outer tank clamp 21, lid clamp 11 is mutually clamped with outer tank clamp 21.
Further, lid clamp 11 is identical with the quantity of outer tank clamp 21, and is 2-6；Lid clamp 11 is along lid
The periphery equidistantly distributed of body 1, periphery equidistantly distributed of the outer tank clamp 21 along outer tank 2.
As shown in Figure 1, being provided with 4 lid clamps 11 on the inner wall of lid 1,4 outer tanks are provided on the outer wall of outer tank 2
Clamp 21.Lid clamp 11 and outer tank clamp 21 are ring structure, and the central angle of each lid clamp 11 is 40 °, often
The central angle of a outer tank clamp 21 is 40 °.
When lid 1 is engaged with outer tank 2, lid clamp 11 is first placed between two outer tank clamps 21, is then turned
Dynamic lid 1, makes each lid bayonet 11 coincide respectively with an outer tank clamp 21, can quickly and easily complete 1 He of lid
The engaging of outer tank 2.
Further, as shown in fig. 6, the bottom of outer tank 2 is provided with fixation hole 22, fixation hole 22 is square hole.To high pressure
Hermetically sealed can is sealed or in opening cover 1, can be fixed by outer tank 2 by fixation hole 22, to facilitate sealing or open
Opening body 1, using more convenient, and the square hole of rectangle is easier to carry out fixed and dismantles.
In the present embodiment, the top of lid 1 is provided with compression bolts 3, and torsion jack 31 is provided on compression bolts 3；
The bottom end of compression bolts 3 is in contact with the top of polytetrafluoroethylene sealing gasket 6.
After being engaged lid 1 with outer tank 2, torsion bar is inserted into torsion jack 31, and rotary torsion stick, it can be fast
Speed completes the fastening of lid 1 and outer tank 2 and the pressure seal to inner canister 4, can be avoided screw capping heavy in pre-processing
The work of sealing, to save the pre-treatment operating time of sample.
In one embodiment, lid 1, outer tank 2 and compression bolts 3 are made of stainless steel or alloy material, and cover
The outer surface of body 1, outer tank 2 and compression bolts 3 is provided with polytetrafluorethylecoatings coatings, to realize corrosion-resistant function.
High-pressure digestion tank specifically used method provided by the invention:
It is put into inner canister 4 firstly, weighing a certain amount of crude oil sample, and suitable strong acid is added into inner canister 4；
Secondly, inner canister 4 is put into after successively placing polytetrafluoroethylene sealing gasket 6 and quartzy sealing-plug 7 in inner canister 4
In protective cradle 5；
Again, after outer tank 2 being fixed by fixation hole 22, protective cradle 5 is put into outer tank 2, and in quartzy sealing-plug 7
Upper placement polytetrafluoroethylene (PTFE) briquetting 8；
Finally, lid 1 and outer tank 2 are fastened, with torsion bar screw pressure bolt 3, until tighten can be completed lid 1 with
The fastening of outer tank 2 and pressure seal to inner canister 4.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (10)
1. a kind of high-pressure digestion tank, which is characterized in that including lid (1) and outer tank (2), the lid (1) and the outer tank (2)
It is connected together；The outer tank (2) is internally provided with inner canister (4), and the inner canister (4) is made of quartz.
2. high-pressure digestion tank according to claim 1, which is characterized in that be provided with lip shape at the tank mouth of the inner canister (4)
The bottom of structure (41), the inner canister (4) is configured to spherical shape.
3. high-pressure digestion tank according to claim 2, which is characterized in that the top of the inner canister (4) is from top to bottom successively
It is provided with polytetrafluoroethylene sealing gasket (6), quartzy sealing-plug (7) and polytetrafluoroethylene (PTFE) pressure pad (8)；
The polytetrafluoroethylene sealing gasket (6) is O shape gasket, and the quartz sealing-plug (7) is configured to T shape, and the quartz is close
The lower end of blocking (7) passes through the polytetrafluoroethylene sealing gasket (6) and is arranged in the inner canister (4).
4. high-pressure digestion tank described in any one of -3 according to claim 1, which is characterized in that the inner canister (4) with it is described
It is provided between outer tank (2) protective cradle (5), the protective cradle (5) is made of polytetrafluoroethylene (PTFE)；
The protective cradle (5) is configured to barrel-shaped, and the internal bottom surface of the protective cradle (5) is configured to and the inner canister (4)
The spherical bottom that matches of bottom.
5. high-pressure digestion tank according to claim 4, which is characterized in that the bottom of the protective cradle (5), which is provided with, unloads
Sample hole (51).
6. high-pressure digestion tank described in any one of -3 according to claim 1, which is characterized in that the inner wall of the lid (1)
On be provided with inwardly raised lid clamp (11), outer tank card raised outward is provided on the outer wall of the outer tank (2)
Head (21), the lid clamp (11) are mutually clamped with the outer tank clamp (21).
7. high-pressure digestion tank according to claim 6, which is characterized in that the lid clamp (11) and the outer tank clamp
(21) quantity is identical, and is 2-6；
The lid clamp (11) is along the periphery equidistantly distributed of the lid (1), and the outer tank clamp (21) is along described outer
The periphery equidistantly distributed of tank (2).
8. high-pressure digestion tank according to claim 7, which is characterized in that the bottom of the outer tank (2) is provided with fixation hole
(22), the fixation hole (22) is square hole.
9. high-pressure digestion tank according to claim 4, which is characterized in that be provided with pressure spiral shell at the top of the lid (1)
Bolt (3) is provided with torsion jack (31) on the compression bolts (3)；
The bottom end of the compression bolts (3) is in contact with the top of the polytetrafluoroethylene sealing gasket (6).
10. high-pressure digestion tank according to claim 9, which is characterized in that the lid (1), the outer tank (2) and institute
It states compression bolts (3) to be made of stainless steel or alloy material, and the lid (1), the outer tank (2) and the pressure spiral shell
The outer surface of bolt (3) is provided with polytetrafluorethylecoatings coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710469755.XA CN109100208A (en) | 2017-06-20 | 2017-06-20 | High-pressure digestion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710469755.XA CN109100208A (en) | 2017-06-20 | 2017-06-20 | High-pressure digestion tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109100208A true CN109100208A (en) | 2018-12-28 |
Family
ID=64795590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710469755.XA Pending CN109100208A (en) | 2017-06-20 | 2017-06-20 | High-pressure digestion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109100208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106018A (en) * | 2021-03-22 | 2022-09-27 | 中国石油化工股份有限公司 | High-temperature high-pressure acid reaction tank, reaction device and method |
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| CN106092718A (en) * | 2016-08-06 | 2016-11-09 | 济南海能仪器股份有限公司 | High-pressure digestion tank |
| CN106198417A (en) * | 2016-07-20 | 2016-12-07 | 安徽皖仪科技股份有限公司 | A kind of clear up handling system for water quality on-line monitoring instrument |
| CN106769391A (en) * | 2017-03-28 | 2017-05-31 | 核工业理化工程研究院 | Micro-wave diminishing pot drainage system |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2669193Y (en) * | 2004-01-13 | 2005-01-05 | 上海新仪微波化学科技有限公司 | Constant-pressure resolution pot |
| CN103822819A (en) * | 2012-11-19 | 2014-05-28 | 中国科学院海洋研究所 | Anti-corrosion efficient digestion tank with quickly buckled bayonet |
| CN104865117A (en) * | 2015-06-12 | 2015-08-26 | 上海元析仪器有限公司 | Zero-consumable self-restoring high-pressure digestion combined tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115106018A (en) * | 2021-03-22 | 2022-09-27 | 中国石油化工股份有限公司 | High-temperature high-pressure acid reaction tank, reaction device and method |
| CN115106018B (en) * | 2021-03-22 | 2024-04-16 | 中国石油化工股份有限公司 | High-temperature high-pressure acid reaction tank, reaction device and method |
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Application publication date: 20181228 |