CN102901663A - Novel closed microwave digestion tank - Google Patents
Novel closed microwave digestion tank Download PDFInfo
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- CN102901663A CN102901663A CN2012103535038A CN201210353503A CN102901663A CN 102901663 A CN102901663 A CN 102901663A CN 2012103535038 A CN2012103535038 A CN 2012103535038A CN 201210353503 A CN201210353503 A CN 201210353503A CN 102901663 A CN102901663 A CN 102901663A
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Abstract
The invention provides a novel closed microwave digestion tank. The digestion tank comprises a tank bracket, a sample solution cup, a protective cover and a sealing cup cover, and further comprises a burst block. The protective cover is sleeved on the outer wall of the sample solution cup; the top of the tank bracket is provided with a thread hole; opening of the sample solution cup is upward and located in the tank bracket; the sealing cup cover is inserted into the top of the sample solution cup; the burst block is pressured on the sealing cup cover through a burst block pressure plate; thread matching with the thread hole on the top of the tank bracket is arranged above the burst block pressure plate; and the burst block is fixedly screwed with the thread hole on the top of the tank bracket through screw. The invention has the following advantages: the burst block pressure plate physically fractures to effuse a large quantity of high-pressure gas instantly in a sudden, so as to avoid explosion of digestion tank due to delayed pressure relief; physical fracture pressure relief enables timely relief regardless of the length of heating time, temperature level, changes of pressure, so as to eliminate the risk of digestion tank explosion; and the digestion tank has simple processing and strong operability.
Description
Technical field
The present invention relates to a kind of microwave digestion device, refer to especially the Novel closed micro-wave diminishing pot.
Background technology
The micro-wave digestion method of analytic sample is that the Novel closed micro-wave diminishing pot that will fill sample and solvent places the microwave heating instrument to heat, and chemical reaction occurs in counteracting tank for sample and solvent in heating process, produces a large amount of gases, forms high temperature and high pressure.If the temperature and pressure to continuous rising in heating process is not monitored, will cause bursting of closed digestion tank and injury accident occurs.So one overlaps qualified micro-wave digestion equipment outside security consideration must possess reliable temperature automatically controlled control pressure system; counteracting tank must possess also that automatically control is malfunctioning or a kind of protective capability self arranged when causing the closed digestion tank internal pressure out of control owing to reasons such as operation failures when instrument, and namely counteracting tank rushes down compression functions.Consider that from operating with practicality counteracting tank must have the function of losing heart at any time.
The in the market counteracting tank pressure release of like product and rush down compression functions and realize as shown in Figure 1, housing screw 10 compresses molten sample cup 40 by cushion block 20 and sealed cup cover 30, the vent hole 32 that bursting membrane 60 is put into sealed cup cover 30 covers the passage 31 that loses heart, air release 50 screws in sealed cup cover 30 threaded holes 32 and tightens and push down bursting membrane 60, block the passage 31 that loses heart, make between molten sample cup 40 and the sealed cup cover 30 formation airtight.
Principle of work:
Pressure release: when having pressed gas to exist in the vapor tight tank, as long as unscrew air release 50, pressed gas releases through air release passage 51 from the passage 31 that loses heart and reaches the pressure release purpose.
Rush down pressure: when instrument closed digestion tank inner high voltage gas occurs when out of control in operational process, powerful gases at high pressure are sudden and violent with the bursting membrane punching, make gases at high pressure moments release to reach from air release passage 51 and rush down the pressure purpose.
But this pressure release and the mode of rushing down pressure have problems:
(1) the bleeder port outlet diameter is generally about 1mm, and it is unlikely that paroxysmal a large amount of gases at high pressure moments releases in such aperture, so often can occur to have little time to cause bursting of counteracting tank because of pressure release;
(2) along with the length of heat time heating time, the size variation of the high-low pressure of temperature all can have influence on the design load of bursting membrane, so, rush down and press the correct fixed value of neither one;
(3) material of airtight bowl cover and air release all is that nonmetallic teflon material is made.Its heatproof and compressive resistance are all relatively poor.Work under High Temperature High Pressure, material is out of shape easily, and bleeder port can diminish, even closed, and connecting thread can be out of shape, and these all can have influence on former design parameter value.Aperture diminish or closure can cause vapor tight tank normally pressure release rush down pressure, connect the deformation effect of thread to the leakproofness of closed digestion tank, and work can't be proceeded;
(4) once necessary replacing is once new for the every operation of bursting membrane, has increased the consumptive material of equipment;
(5) processing trouble, complex operation, poor operability.
Summary of the invention
The present invention proposes a kind of Novel closed micro-wave diminishing pot, has solved poor stability of the prior art, complex operation, poor operability shortcoming.
Technical scheme of the present invention is achieved in that
The Novel closed micro-wave diminishing pot; this counteracting tank comprises the tank frame; molten sample cup; the protection overcoat; sealed cup cover; described protection overcoat is set in molten sample cup outer wall; it is characterized in that; also comprise the explosion piece; described tank top of the trellis is provided with threaded hole; described molten sample cup opening upwards is located in the tank frame; described molten sample cup rim of a cup is provided with a glass edge; this glass is provided with annular recess along the below inwall; described sealed cup cover top is provided with pilot hole; the middle part is provided with the cyclic convex edge on the molten sample cup cup of coupling edge; the bottom is provided with the shirt rim; sealing bowl cover shirt rim is provided with bleeder port; described sealed cup cover is plugged in molten sample cup top; described sealed cup cover cyclic convex edge is fastened on molten sample cup cup along upper; described sealed cup cover shirt rim is located at molten sample cup annular recess below; described explosion piece bottom is provided with the guide head of coupling sealed cup cover top pilot hole; described guide head top is provided with the explosion block pressur plate of coupling sealed cup cover end face; described explosion piece is pressed on the sealed cup cover by the explosion block pressur plate; described explosion block pressur plate top is provided with the screw thread of matching can top of the trellis threaded hole, and described explosion piece is tightened by screw thread and tank top of the trellis threaded hole.
The cyclic convex edge of described sealed cup cover and the outer wall between the shirt rim are provided with the annular recess of the molten sample cup annular recess of coupling, and the annular recess of this annular groove and molten sample cup constitutes disappointing endless belt.
Described explosion block pressur plate bottom surface is provided with along the upwardly extending explosion groove of guide head sidewall.
Compared with prior art, advantage of the present invention comprises:
(1) the explosion block pressur plate physical rupture of explosion piece so that paroxysmal a large amount of gases at high pressure moments gush because rushing down to press and have little time to cause not bursting of counteracting tank to occur;
(2) no matter the fracture of physical property is rushed down presses so that the length of heat time heating time, the size variation of the high-low pressure of temperature can in time gush, and has eliminated the risk that bursts of counteracting tank;
(3) processing is simple, workable.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the prior art structural representation of Novel closed micro-wave diminishing pot;
Fig. 2 is the structural representation of Novel closed micro-wave diminishing pot of the present invention;
Fig. 3 is the A section partial enlarged drawing of Fig. 2;
Fig. 4 is the structural representation of the molten sample cup of Novel closed micro-wave diminishing pot of the present invention;
Fig. 5 is the structural representation of the sealed cup cover of Novel closed micro-wave diminishing pot of the present invention;
Fig. 6 is the disappointing principle schematic of Novel closed micro-wave diminishing pot of the present invention;
Fig. 7 is the B section partial enlarged drawing of Fig. 6;
Fig. 8 be Novel closed micro-wave diminishing pot of the present invention rush down the gas principle schematic;
Fig. 9 is the C section partial enlarged drawing of Fig. 8.
Wherein, 10-housing screw, 20-cushion block, 30-sealed cup cover, the 31-passage that loses heart, 32-vent hole, the molten sample cup of 40-, 50-air release, 51-air release passage, 60-bursting membrane
100-explosion piece, 101-explosion block pressur plate, 102-guide head, 103-explosion groove, 104-screw thread, 200-sealed cup cover, 201-pilot hole, 202-bleeder port, 203-shirt rim, 204-annular recess, the molten sample cup of 300-, 301-annular recess, the disappointing endless belt of 400-, 500-tank frame, 501-threaded hole, 600-protect overcoat
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Shown in Fig. 2～5; technical scheme of the present invention is achieved in that the Novel closed micro-wave diminishing pot; this counteracting tank comprises tank frame 500; molten sample cup 300; protection overcoat 600; sealed cup cover 200; described protection overcoat 600 is set in molten sample cup 300 outer walls; also comprise explosion piece 100; described tank frame 500 tops are provided with threaded hole 501; described molten sample cup 300 opening upwards are located in the tank frame 500; described molten sample cup 300 rims of a cup are provided with a glass edge; this glass is provided with annular recess 301 along the below inwall; described sealed cup cover 200 tops are provided with pilot hole 201; the middle part is provided with the cyclic convex edge on the molten sample cup cup of coupling edge; the bottom is provided with shirt rim 203; sealing bowl cover 200 shirt rims 203 are provided with bleeder port 202; described sealed cup cover 200 is plugged in molten sample cup 300 tops; described sealed cup cover 200 cyclic convex edges are fastened on 300 glasss in molten sample cup along upper; described sealed cup cover 200 shirt rims 203 are located at molten sample cup 300 annular recess 301; described explosion piece 100 bottoms are provided with the guide head 102 of coupling sealed cup cover 200 top pilot holes 201; described guide head 102 tops are provided with the explosion block pressur plate 101 of coupling sealed cup cover 200 end faces; described explosion piece 100 is pressed on the sealed cup cover 200 by explosion block pressur plate 102; described explosion block pressur plate 101 tops are provided with the screw thread 104 of matching can top of the trellis threaded hole 501, and described explosion piece 100 is tightened by screw thread 104 and tank frame 500 screw top holes 501.
Outer wall between the cyclic convex edge of described sealed cup cover 200 and the shirt rim 203 is provided with the annular recess 204 of molten sample cup 300 annular recess 301 of coupling, and this annular groove 204 constitutes the endless belt 400 that loses heart with the annular recess 301 of molten sample cup 300.
Described explosion block pressur plate 101 bottom surfaces are provided with along the upwardly extending explosion groove 103 of guide head 102 sidewalls.
Shown in Fig. 6～7, clear up finish after, in counteracting tank, still have in the situation of pressure, in the time that counteracting tank need to being opened, must finish first " pressure release " operation: unscrew counterclockwise explosion piece 100, make on the explosion piece 100 and carry, sealed cup cover 200 also and then rises under pressure, when moving on to disappointing endless belt 400 on the bleeder port 202 that rises to sealed cup cover 200, vapor tight tank internal pressure gas just discharges outside the tank, reaches the safety relief purpose.
Shown in Fig. 8～9; the reason vapor tight tank internal pressure such as malfunctioning or misoperation infinitely increases owing to the temperature and pressure control system; when the design strength that increases to above explosion block pressur plate 101; explosion block pressur plate 101 will cut off along explosion groove 103; under the impact of tank inner high voltage gas; explosion block pressur plate 101 makes progress and promotes, and sealed cup cover 200 and then promotes, and reaching instantly safe rushes down the pressure purpose cruelly by the gases at high pressure punching so sealed cup cover shirt rim 203 has broken away from the protection of molten sample cup 300.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. Novel closed micro-wave diminishing pot; this counteracting tank comprises the tank frame; molten sample cup; the protection overcoat; sealed cup cover; described protection overcoat is set in molten sample cup outer wall; it is characterized in that; also comprise the explosion piece; described tank top of the trellis is provided with threaded hole; described molten sample cup opening upwards is located in the tank frame; described molten sample cup rim of a cup is provided with a glass edge; this glass is provided with annular recess along the below inwall; described sealed cup cover top is provided with pilot hole; the middle part is provided with the cyclic convex edge on the molten sample cup cup of coupling edge; the bottom is provided with the shirt rim; sealing bowl cover shirt rim is provided with bleeder port; described sealed cup cover is plugged in molten sample cup top; described sealed cup cover cyclic convex edge is fastened on molten sample cup cup along upper; described sealed cup cover shirt rim is located at molten sample cup annular recess below; described explosion piece bottom is provided with the guide head of coupling sealed cup cover top pilot hole; described guide head top is provided with the explosion block pressur plate of coupling sealed cup cover end face; described explosion piece is pressed on the sealed cup cover by the explosion block pressur plate; described explosion block pressur plate top is provided with the screw thread of matching can top of the trellis threaded hole, and described explosion piece is tightened by screw thread and tank top of the trellis threaded hole.
2. Novel closed micro-wave diminishing pot according to claim 1, it is characterized in that, the cyclic convex edge of described sealed cup cover and the outer wall between the shirt rim are provided with the annular recess of the molten sample cup annular recess of coupling, and the annular recess of this annular groove and molten sample cup constitutes disappointing endless belt.
3. Novel closed micro-wave diminishing pot according to claim 1 is characterized in that, described explosion block pressur plate bottom surface is provided with along the upwardly extending explosion groove of guide head sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210353503.8A CN102901663B (en) | 2012-09-20 | 2012-09-20 | Novel closed micro-wave diminishing pot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210353503.8A CN102901663B (en) | 2012-09-20 | 2012-09-20 | Novel closed micro-wave diminishing pot |
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| CN102901663A true CN102901663A (en) | 2013-01-30 |
| CN102901663B CN102901663B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210353503.8A Active CN102901663B (en) | 2012-09-20 | 2012-09-20 | Novel closed micro-wave diminishing pot |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226225A (en) * | 2014-09-10 | 2014-12-24 | 华南理工大学 | Pressure self-unloading microwave digestion device |
| CN104971787A (en) * | 2014-04-11 | 2015-10-14 | 黄庭国 | Quantitatively gas-leakage and pressure-relieving sealed microwave high-pressure digestion tank |
| CN106018057A (en) * | 2016-08-06 | 2016-10-12 | 济南海能仪器股份有限公司 | Microwave digestion tank |
| CN106092718A (en) * | 2016-08-06 | 2016-11-09 | 济南海能仪器股份有限公司 | High-pressure digestion tank |
| CN114397169A (en) * | 2022-01-04 | 2022-04-26 | 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 |
Citations (5)
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| US4904450A (en) * | 1989-03-01 | 1990-02-27 | Terry Floyd | High temperature and high pressure digestion vessel assembly |
| CN2294011Y (en) * | 1996-04-13 | 1998-10-14 | 浙江苏泊尔有限公司 | Safety device for pressure-cooker, and the cover therewith |
| US5948307A (en) * | 1997-06-04 | 1999-09-07 | O.I. Corporation | High pressure relief for microwave digestion vessel assembly |
| CN201191250Y (en) * | 2008-05-09 | 2009-02-04 | 上海新仪微波化学科技有限公司 | Enclosed microwave diminishing pot having pressure relief ring |
| CN202886173U (en) * | 2012-09-20 | 2013-04-17 | 上海新仪微波化学科技有限公司 | Novel closed microwave digestion tank |
-
2012
- 2012-09-20 CN CN201210353503.8A patent/CN102901663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904450A (en) * | 1989-03-01 | 1990-02-27 | Terry Floyd | High temperature and high pressure digestion vessel assembly |
| CN2294011Y (en) * | 1996-04-13 | 1998-10-14 | 浙江苏泊尔有限公司 | Safety device for pressure-cooker, and the cover therewith |
| US5948307A (en) * | 1997-06-04 | 1999-09-07 | O.I. Corporation | High pressure relief for microwave digestion vessel assembly |
| CN201191250Y (en) * | 2008-05-09 | 2009-02-04 | 上海新仪微波化学科技有限公司 | Enclosed microwave diminishing pot having pressure relief ring |
| CN202886173U (en) * | 2012-09-20 | 2013-04-17 | 上海新仪微波化学科技有限公司 | Novel closed microwave digestion tank |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104971787A (en) * | 2014-04-11 | 2015-10-14 | 黄庭国 | Quantitatively gas-leakage and pressure-relieving sealed microwave high-pressure digestion tank |
| CN104971787B (en) * | 2014-04-11 | 2017-08-11 | 上海新仪微波化学科技有限公司 | The quantitative discouraged closed microwave high-pressure digestion tank for rushing down pressure |
| CN104226225A (en) * | 2014-09-10 | 2014-12-24 | 华南理工大学 | Pressure self-unloading microwave digestion device |
| CN104226225B (en) * | 2014-09-10 | 2016-03-02 | 华南理工大学 | A kind of pressure self-tipping type microwave digestion device |
| CN106018057A (en) * | 2016-08-06 | 2016-10-12 | 济南海能仪器股份有限公司 | Microwave digestion tank |
| CN106092718A (en) * | 2016-08-06 | 2016-11-09 | 济南海能仪器股份有限公司 | High-pressure digestion tank |
| CN106018057B (en) * | 2016-08-06 | 2019-12-10 | 苏州新仪科学仪器有限公司 | Microwave digestion tank |
| CN106092718B (en) * | 2016-08-06 | 2019-12-20 | 苏州新仪科学仪器有限公司 | High-pressure digestion tank |
| CN114397169A (en) * | 2022-01-04 | 2022-04-26 | 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 |
| 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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| Publication number | Publication date |
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| CN102901663B (en) | 2015-12-23 |
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