CN104971787B - The quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure - Google Patents
The quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure Download PDFInfo
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- CN104971787B CN104971787B CN201410145327.8A CN201410145327A CN104971787B CN 104971787 B CN104971787 B CN 104971787B CN 201410145327 A CN201410145327 A CN 201410145327A CN 104971787 B CN104971787 B CN 104971787B
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Abstract
The invention discloses a kind of quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure; it includes a tank frame, a sample dissolving cup, a cup lid and a protective case; protective case is sheathed on outside sample dissolving cup tank frame inner close fitting; cup lid includes the cap of a closed piston part for filling in sample dissolving cup and a closed opening for covering sample dissolving cup, and the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure also includes：An at least elastomer and an abutting part；It is provided with some gas passages on piston part, the side that one end of some gas passages is close to sample dissolving cup side wall with piston part is connected, and the end face that the other end fills in sample dissolving cup with piston part is connected；Abutting part just being screwed into inside tank frame to the opening spiral of sample dissolving cup, and abut end face of the cap away from sample dissolving cup across elastomer.Abutting part is screwed into by setting elastomer between cup lid and abutting part, then from tank frame external spiral so that the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure can ensure a fixed safety relief value.
Description
Technical field
The present invention relates to a kind of quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure.
Background technology
Microwave digestion method be will be equipped with sample and reagent closed container be placed in microwave dissolver carry out microwave add
Heat.Sample and reagent chemically react in microwave heating process, temperature and pressure in tank is constantly raised rapidly, if
Instrument does not have a set of effective robot control system(RCS) and lost heart to rush down pressure function, will result in the Bao Zha Wei Insurance of closed digestion tank.It is light then damage
Bad equipment, it is heavy then injure personnel.It must be ground therefore, the safety problem for how efficiently solving counteracting tank is current apparatus manufacturer
The important topic studied carefully.
At present, as shown in figure 1, some micro-wave diminishing pots design a diameter 1mm or so exhaust duct on cup lid 101
102, the plastic tab 103 that a piece of thickness is 0.3 1 0.5 Te Fulong is pressed on exhaust duct 102, when pressure inside the tank is increased to beyond modeling
When expecting 103 bearing strength of thin slice, plastic tab 103 is blown brokenly by gases at high pressure and discharges pressure.The shortcoming of this method is：Cause
The material for manufacturing cup lid and thin slice is engineering plastics, by different temperatures in heating process, different pressures and different heating time
Influence them can be made to produce the deformation of different situations, exhaust duct makes aperture reduce even blocking, separately because being constantly squeezed
Outside, thin slice changes because of the impact thickness and shape of the gas that is stressed, compression strength is changed, it is difficult to maintain one
Accurate safety relief value；Because thin slice is easily deformed damage, adjusted newly so regulation is often used once change, this allows for behaviour
Bother, and add consumptive material；Easy cleaning does not produce cross pollution easily in exhaust duct；Because exhaust duct diameter only has a milli
Once gases at high pressure have little time moment and released when occurring superpressure counteracting tank bursting accident easily occurs for rice or so.
Fig. 2~5 are the micro-wave diminishing pot of other two prior art, and as shown in Figure 2-5, cover 104 is connected through a screw thread pressure
Tight cup lid 105 makes counteracting tank closed.When pressure inside the tank increases above the Cheng Shou Li Time of cover 104, the top of cover 104 can become
Shape, then cup lid 105 rise, gases at high pressure release from bleed passage.The defect of such technical scheme is：Cover 104
Material is engineering plastics, and by different temperatures, pressure, the effect of heat time easily occurs aging deformation and loses material original
Some physical properties, therefore, can not equally ensure to have a fixed safety relief value ensure Xiao Solution processes Zheng Chang Jin rows and
Security.This is also to clear up after end through often occurring that sample reduces even dry-out in the not cleer and peaceful tank of Specimen eliminating；It is another
Aspect, is again stress concentration point due to sample dissolving cup strength of materials bottom, and at the screw thread being connected with cover, so easily there is rim of a cup
Phenomenon is pulled off, so counteracting tank is pressure-resistant not high.
The content of the invention
The technical problem to be solved in the present invention is to fix safety relief value and molten to overcome prior art not ensure
Pressure release is insufficient when air pressure jumps in sample cup causes the low defect of security to set safety relief value and safety there is provided one kind
Property it is higher it is quantitative lose heart rush down the closed microwave high-pressure digestion tank of pressure.
The present invention is to solve above-mentioned technical problem by following technical proposals：
It is a kind of it is quantitative lose heart rush down the closed microwave high-pressure digestion tank of pressure, its include a tank frame, a sample dissolving cup, a cup lid and
One protective case, the protective case is sheathed on outside the sample dissolving cup the tank frame inner close fitting, and it is closed that the cup lid includes one
The piston part of the sample dissolving cup and the cap of a closed opening for covering the sample dissolving cup are filled in, its feature is, described quantitatively to let out
The closed microwave high-pressure digestion tank that gas rushes down pressure also includes：An at least elastomer and an abutting part；
It is provided with some gas passages on the piston part, one end of some gas passages is close to described with the piston part
The side of sample dissolving cup side wall is connected, and the end face that the other end fills in the sample dissolving cup with the piston part is connected；
The abutting part just being screwed into inside the tank frame to the opening spiral of the sample dissolving cup, and across the elastomer
Abut end face of the cap away from the sample dissolving cup.
That is, abutting part compresses elastomer and then pressed glass is placed on the rim of a cup of sample dissolving cup, and abutting part is spiral
It is screwed into inside tank frame, the pressure that the control of the instruments such as torque spanner can be used to compress（The pressure of compression can be set）.And cup
Gas passage on the piston part of lid is obstructed when cup lid sealing is pressed in sample dissolving cup（That is one end outlet of gas passage is logical
To the wall of cup of sample dissolving cup）, and work as pressure in sample dissolving cup and gradually rise up to elevated pressures（Abutting part more than setting compresses elastomer
Pressure）During, piston part is by the slowly jack-up of the pressure in sample dissolving cup, positioned at piston part closer to the one of the gas passage of cap
Expose at end（From the rim of a cup of sample dissolving cup）, pressure is released.After pressure is released, because the elastic force of elastomer is acted on, cup lid is pressed
Sink, be returned to original state（Pressure of the pressure less than that setting that abutting part is pushed i.e. in sample dissolving cup）.
Preferably, the sample dissolving cup is being close in one end of the gas passage from the cap apart from different positions respectively
The side of side wall is connected, and the end face that the other end fills in the sample dissolving cup with the piston part is connected.
Preferably, the abutting part abuts the elastomer with a default torsion.
That is, if the raising speed of the pressure in sample dissolving cup is very fast, under effect of inertia, piston part is by molten sample in the short time
Air pressure jack-up in cup is to a higher position.So, the gas passage exposed from the rim of a cup of sample dissolving cup just more, pressure
Also it is easier to be released.And after pressure is released, because the elastic force of elastomer is acted on, it is heavy that cup lid is depressed, it is returned to initial
State（Pressure of the pressure less than that setting that abutting part is pushed i.e. in sample dissolving cup）.
Preferably, the elastomer is made of metal.
Herein, design flexibility body, which is made of metal, is primarily due to metal and is more suitable for heating in microwave field, and not by temperature
Degree, the influence of pressure and heat time can be used forever.
Preferably, the gas passage includes an at least first gas passage and at least a second gas passage, it is described
The area of the inner section of first gas passage is less than the area of the inner section of the second gas passage；
The distance of position that the first gas passage is connected with the side of the piston part and the cap is than described second
The distance of position that gas passage is connected with the side of the piston part and the cap closer to.
That is, the first gas passage for being located closer to cap is thinner, it is suitable for when pressure slowly increases a bit
Pressure in the release sample dissolving cup of point；And the second gas passage below first gas passage is thicker, it is adaptable in molten sample
Pressure faster discharges gas when surging the short time in cup, is sustained pressure.
Preferably, the abutting part is an explosion block.Explosion block can be broken when pressure increases sharply so that in sample dissolving cup
Gas can quickly be discharged from above-mentioned thicker second gas passage.
Preferably, being provided with explosion layer between the abutting part and the elastomer, the abutting part is cylindricality, described
Elastomer is provided with a pit on the position of the correspondence abutting part, and the section of the pit is more than cutting for the abutting part
Face, the section of the pit is less than the section of the explosion layer.
That is, the abutting part of cylindricality can break explosion lamination, at this moment cylindricality in the presence of a reaction force
Abutting part will fall into the pit set on elastomer, so the activity space of cup lid is occurred as soon as, second gas lead to
Road is able to the rim of a cup exposure from sample dissolving cup quickly to discharge pressure.Above-mentioned reaction force is from gas pressure in sample dissolving cup
Risen suddenly and sharply in short time.So it is prevented that sample dissolving cup blast is damaged.
Preferably, the explosion layer is integrally formed with the abutting part, an at least blade is provided with the pit, it is described
The air pressure that blade is used in the sample dissolving cup cuts off the explosion layer when increasing rapidly.
That is, being cut off rapidly when setting blade to cause explosion layer to be exploded with the more efficient air pressure in sample dissolving cup
Burst layer.
Preferably, being provided with an elastomer box for being used to accommodate elastomer between the elastomer and the cap.
Preferably, being provided with one on end face of the cap away from the sample dissolving cup for spacing to the elastomer box
Position-limit mechanism.
Herein, such setting can cause the quantitative discouraged closed microwave high-pressure digestion jar structure for rushing down pressure of the present invention more
Adduction is managed.
The positive effect of the present invention is：By setting elastomer between cup lid and abutting part, then outside tank frame
Be screwed into abutting part so that it is of the invention it is quantitative lose heart rush down pressure closed microwave high-pressure digestion tank can ensure one it is fixed
Safety relief value；On the other hand, the different gas passage of set location is passed through so that the closed of pressure is rushed down in of the invention quantitatively losing heart
Microwave high pressure counteracting tank both can slowly discharge pressure, can also securely release pressure when pressure rises suddenly and sharply in sample dissolving cup.
Brief description of the drawings
Fig. 1 is the structural representation of the micro-wave diminishing pot of prior art.
Fig. 2 is the structural representation of the micro-wave diminishing pot of prior art.
Fig. 3 is the structural representation of the micro-wave diminishing pot of prior art.
Fig. 4 is the structural representation of the micro-wave diminishing pot of prior art.
Fig. 5 is the structural representation of the micro-wave diminishing pot of prior art.
Fig. 6 is the structural representation of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of the embodiment of the present invention 1.
Fig. 7 is the structural representation of the cup lid of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of the embodiment of the present invention 1
Figure.
Fig. 8 is post-rift for the pressure-bearing plate of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of the embodiment of the present invention 1
Structural representation.
Fig. 9 is the structural representation of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of the embodiment of the present invention 2.
Figure 10 is post-rift for the pressure-bearing plate of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of the embodiment of the present invention 2
Structural representation.
Embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to described reality
Apply among a scope.
Embodiment 1
Fig. 6 is the structural representation of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of the present embodiment, and Fig. 7 is this reality
Apply the structural representation of the cup lid of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of example, as shown in figs. 6-7, this implementation
The quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure that example is related to includes：Tank frame 2, sample dissolving cup 7, cup lid, protective case 6, bullet
Property body 3 and the pressure-bearing screw 1 as abutting part, protective case 6 are sheathed on outside sample dissolving cup 7 the inner close fitting of tank frame 2, and cup lid includes
The closed piston part 42 for filling in sample dissolving cup 7 and the cap 41 of the closed opening for covering sample dissolving cup 7.
4 first gas passages 51 and 4 second gas passages 52, first gas passage 51 and are provided with piston part 42
It is being close to the side phase of the side wall of sample dissolving cup 7 with piston part 42 apart from different positions from cap 41 respectively in one end of two gas passages 52
Connection, the end face that the other end fills in sample dissolving cup 7 with piston part 42 is connected；
Wherein, the area of the inner section of first gas passage 51 is less than the area of the inner section of second gas passage 52.The
The distance of position that one gas passage 51 is connected with the side of piston part 42 and cap 41 is than second gas passage 52 and piston part 42
The distance of position and the cap 41 of side connection closer to.
In addition, just being screwed into inside tank frame 2 to the opening spiral of sample dissolving cup 7, and being abutted across elastomer 3 of pressure-bearing screw 1
End face of the cap 41 away from sample dissolving cup 7.And, pressure-bearing screw 1 is with a default torsion（The present embodiment is set to 2 newton）Abut bullet
Property body 3.
That is, the first gas passage 51 for being located closer to cap 41 is thinner, it is suitable for when pressure slowly increases
Pressure in the release sample dissolving cup 7 of a little；And the second gas passage 52 positioned at the lower section of first gas passage 51 is thicker, it is applicable
Gas is faster discharged when pressure is surging the short time in sample dissolving cup 7, pressure is sustained.
Pressure-bearing screw 1 compresses elastomer 3 and then pressed glass is placed on the rim of a cup of sample dissolving cup 7, and pressure-bearing screw 1 is that spiral is stubborn
Enter inside tank frame 2, the pressure that the control of the instruments such as torque spanner can be used to compress（The pressure of compression can be set）.And cup lid
Piston part 42 on first gas passage 51 and second gas passage 52 cup lid sealing be pressed in sample dissolving cup 7 when be obstructed
（That is the wall of cup of sample dissolving cup 7 is led in one end outlet of first gas passage 51 and second gas passage 52）, and when pressure in sample dissolving cup 7
Power gradually rises up to elevated pressures（Pressure-bearing screw 1 more than setting compresses the pressure of elastomer 3）During, piston part 42 is molten
Pressure slowly jack-up in sample cup 7, exposes positioned at piston part 42 closer to one end of the first gas passage 51 of cap 41（From molten sample
The rim of a cup of cup 7）, pressure is released.After pressure is released, because the elastic force of elastomer 3 is acted on, it is heavy that cup lid is depressed, and is returned to
Original state（Pressure of the pressure less than that setting that pressure-bearing screw 1 is pushed i.e. in sample dissolving cup 7）.
If the raising speed of the pressure in sample dissolving cup 7 is very fast, under effect of inertia, piston part 42 is by sample dissolving cup 7 in the short time
Air pressure jack-up to a higher position.So, second gas passage 52 exposes from the rim of a cup of sample dissolving cup 7, and pressure is also
It is easier to be released.And after pressure is released, because the elastic force of elastomer 3 is acted on, it is heavy that cup lid is depressed, and is returned to original state
（Pressure of the pressure less than that setting that pressure-bearing screw is pushed i.e. in sample dissolving cup 7）.
Elastomer 3 is made of metal.
Herein, design flexibility body 3, which is made of metal, is primarily due to metal and is more suitable for heating in microwave field, and not by temperature
Degree, the influence of pressure and heat time can be used forever.
Fig. 8 shows for the quantitative post-rift structure of pressure-bearing plate for losing heart the closed microwave high-pressure digestion tank for rushing down pressure of the present embodiment
It is intended to, as shown in figure 8, pressure-bearing screw 1 is provided with pressure-bearing plate 11, pressure-bearing plate 11 and the one of pressure-bearing screw 1 between elastomer 3
Shaping, pressure-bearing screw 1 is cylindricality, and elastomer 3 is provided with pit 31, the section of pit 31 on the position of correspondence pressure-bearing screw 1
More than the section of pressure-bearing screw 1, the section of pit 31 is less than the section of pressure-bearing plate 11.
That is, the pressure-bearing screw 1 of cylindricality can break pressure-bearing plate 11 in the presence of a reaction force, this
When cylindricality pressure-bearing screw 1 will fall into the pit 31 set on elastomer 3, so the activity space of cup lid is occurred as soon as
, second gas passage 52 is able to the rim of a cup exposure from sample dissolving cup 7 quickly to discharge pressure.Above-mentioned reaction force is from molten
Risen suddenly and sharply in sample cup 7 in the short time of gas pressure.So it is prevented that the blast of sample dissolving cup 7 is damaged.
The elastomer box 32 for accommodating elastomer 3 is provided between elastomer 3 and cap 41.
Cap 41 is provided with one on the end face away from sample dissolving cup 7 be used for the stopper slot 43 spacing to elastomer box 32.
Embodiment 2
Fig. 9 is the structural representation of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of embodiment 2, and Figure 10 is implementation
The post-rift structural representation of pressure-bearing plate of the quantitative closed microwave high-pressure digestion tank for rushing down pressure that loses heart of example 2, such as the institute of Fig. 9~10
Show, the difference of embodiment 2 and embodiment 1 is, be provided only with piston part 42 some（The present embodiment is 4）First gas is led to
Road 51（It is not provided with second gas passage）.
In addition, being provided with cutting blade 5 between elastomer 3 and pressure-bearing plate 11.Pressure-bearing screw 1 is tightened when using and abuts pressure-bearing
Piece 11 causes pressure-bearing plate 11 to be compressed with cutting blade 5.
The principle of embodiment 2 is：When pressure in sample dissolving cup 7 is smaller, pressure jacking piston part 42 is risen so that the first gas
Body passage 51 exposes to discharge pressure；When the pressure in sample dissolving cup 7 rapidly rises, pressure jacking piston part 42, and then promote bullet
Property body 3 apply larger pressure towards pressure-bearing plate 11 so that the cut-out of cutting blade 5 between elastomer 3 and pressure-bearing plate 11 is held
Tabletting 11, at this moment the pressure-bearing screw 1 of cylindricality will fall into the pit 31 set on elastomer 3, so the activity of cup lid is empty
Between occur as soon as, whole piston part 42 is deviate from from the rim of a cup of sample dissolving cup 7, and the exposure on a large scale of the gas in sample dissolving cup 7 is quickly to release
Bleed off pressure power.So it is prevented that the blast of sample dissolving cup 7 is damaged.
Although the embodiment of the present invention is the foregoing described, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
On the premise of the principle and essence of the present invention, various changes or modifications can be made to these embodiments, but these changes and
Modification each falls within protection scope of the present invention.
Claims (8)
1. a kind of quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure, it includes a tank frame, a sample dissolving cup, a cup lid and one
Protective case, the protective case is sheathed on outside the sample dissolving cup the tank frame inner close fitting, and the cup lid includes a closed plug
Enter the piston part of the sample dissolving cup and the cap of a closed opening for covering the sample dissolving cup, it is characterised in that described quantitative discouraged
The closed microwave high-pressure digestion tank for rushing down pressure also includes：An at least elastomer and an abutting part；
Some gas passages are provided with the piston part；
The abutting part just being screwed into inside the tank frame to the opening spiral of the sample dissolving cup, and abutted across the elastomer
End face of the cap away from the sample dissolving cup；
It is being close to the side of sample dissolving cup side wall apart from different positions from the cap respectively in one end of the gas passage
It is connected, the end face that the other end fills in the sample dissolving cup with the piston part is connected；
The gas passage includes an at least first gas passage and at least a second gas passage, the first gas passage
Inner section area be less than the second gas passage inner section area；
The distance of position that the first gas passage is connected with the side of the piston part and the cap is than the second gas
The distance of position that passage is connected with the side of the piston part and the cap closer to.
2. the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure as claimed in claim 1, it is characterised in that the abutting part
The elastomer is abutted with a default torsion.
3. the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure as claimed in claim 1, it is characterised in that the elastomer
It is made of metal.
4. the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure as claimed in claim 1, it is characterised in that the abutting part
For an explosion block.
5. such as the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure according to any one of claims 1 to 3, its feature exists
In, be provided between the abutting part and the elastomer explosion layer, the abutting part be cylindricality, the elastomer correspondence
A pit is provided with the position of the abutting part, the section of the pit is more than the section of the abutting part, the pit
Section is less than the section of the explosion layer.
6. the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure as claimed in claim 5, it is characterised in that the explosion layer
It is integrally formed with the abutting part, an at least blade is provided with the pit, the blade is used in the sample dissolving cup
The explosion layer is cut off when air pressure increases rapidly.
7. the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure as claimed in claim 6, it is characterised in that the elastomer
An elastomer box for being used to accommodate the elastomer is provided between the cap.
8. the quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure as claimed in claim 7, it is characterised in that the cap is remote
One is provided with end face from the sample dissolving cup is used for the position-limit mechanism spacing to the elastomer box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410145327.8A CN104971787B (en) | 2014-04-11 | 2014-04-11 | The quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145327.8A CN104971787B (en) | 2014-04-11 | 2014-04-11 | The quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure |
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| CN104971787A CN104971787A (en) | 2015-10-14 |
| CN104971787B true CN104971787B (en) | 2017-08-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10065168B2 (en) * | 2016-05-02 | 2018-09-04 | Cem Corporation | High temperature pressure digestion vessel system with dual action seal |
| CN113333045B (en) * | 2021-06-07 | 2022-10-28 | 北京牡丹电子集团有限责任公司数字科技中心 | Sealed crucible with pressure relief function and preparation method thereof |
| CN114397169B (en) * | 2022-01-04 | 2023-12-01 | 池州市农产品质量安全监测中心 | High-pressure digestion tank for heavy metal detection of agricultural products |
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| CN102901663A (en) * | 2012-09-20 | 2013-01-30 | 上海新仪微波化学科技有限公司 | Novel closed microwave digestion tank |
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| CN203990676U (en) * | 2014-04-11 | 2014-12-10 | 上海新仪微波化学科技有限公司 | Quantitatively lose heart and rush down the closed microwave high-pressure digestion tank of pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5345066A (en) * | 1991-03-18 | 1994-09-06 | Knapp Guenter | Device for heating substances under the development of high pressures in a microwave field |
| CN200952979Y (en) * | 2006-09-29 | 2007-09-26 | 上海新仪微波化学科技有限公司 | Safety pressure-reducing, pressure limiting and releasing integrated closed microwave resoluting pot |
| CN201596510U (en) * | 2009-06-26 | 2010-10-06 | 广州市怡文环境科技股份有限公司 | High-temperature and high-pressure sealed digestion device |
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| CN104971787A (en) | 2015-10-14 |
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Effective date of registration: 20170622 Address after: 200235 Shanghai city Xuhui District Guanshengyuan Road No. 227 South third floor Applicant after: Xinyi Microwave Chemistry Tech Co., Ltd. Address before: 200030, room 20, No. 1023, Lane 1607, two South Road, Zhongshan, Shanghai, Xuhui District Applicant before: Huang Tingguo Applicant before: Huang Jing |
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