CN106018057B - Microwave digestion tank - Google Patents
Microwave digestion tank Download PDFInfo
- Publication number
- CN106018057B CN106018057B CN201610636703.2A CN201610636703A CN106018057B CN 106018057 B CN106018057 B CN 106018057B CN 201610636703 A CN201610636703 A CN 201610636703A CN 106018057 B CN106018057 B CN 106018057B
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- tank
- inner tank
- cover
- rotating surface
- convex ring
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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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- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Closures For Containers (AREA)
- Treatment Of Sludge (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
A microwave digestion tank belongs to the technical field of pressure vessels. The microwave digestion tank comprises an outer tank, an inner tank arranged in the outer tank, an inner tank cover and an outer tank cover, and is characterized in that the outer tank cover is screwed up to the outer tank opening through threads and compresses the inner tank cover to the inner tank opening. The microwave digestion tank provided by the invention can reach higher working pressure, is smaller in size and easy to process, and has automatic and manual pressure relief functions.
Description
Technical Field
The invention relates to a microwave digestion tank, in particular to a microwave digestion tank capable of automatically relieving pressure under high pressure.
Background
The digestion tank in the market is mainly realized by combining an inner tank and an outer tank, the inner tank is made of fluoroplastic for acid and alkali resistance, the outer tank is made of high-strength plastic for transverse support, but longitudinal support is provided in a tank frame form, so that the digestion tank is heavy to operate and large in size, and high-flux digestion is not facilitated; one sealing aspect of the combination of inner and outer cans is that the inner skirt of the upper cover is sealed to achieve 500psi but cannot be automatically and safely vented. There is also a method of using a stopper as an inner cap, which has a disadvantage of releasing pressure when the pressure is small.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a microwave digestion tank which can reach higher working pressure, has smaller volume and easy processing, and also has the functions of automatic and manual pressure relief.
in order to achieve the purpose, the invention provides a microwave digestion tank which comprises an outer tank, an inner tank arranged in the outer tank, an inner tank cover and an outer tank cover.
Preferably, the inner tank is provided with a convex ring at the outer edge near the tank opening along the circumferential direction so as to support the inner tank upwards at the opening part, and the inner tank is placed in the outer tank, so that a certain space is kept between the outer wall of the inner tank and the inner wall of the outer tank.
Preferably, the part above the convex ring of the opening of the inner tank is a circular ring formed by pentagons rotating vertically around the axis of the inner tank, wherein the first edge of the pentagon is parallel to the four edges and is vertical to the axis of the inner tank, and the included angle between the second edge of the pentagon and the first edge is an obtuse angle; the third side of the pentagon is parallel to the fifth side and parallel to the axis of the inner tank.
Preferably, the inner tank cover comprises an inner tank cover top wall and a first cylinder, wherein a first through hole is formed in the center of the inner tank cover top wall, the first end of the first cylinder is arranged in the center of the upper surface of the inner tank cover top wall, the second end of the first cylinder is connected with a second cylinder, and the diameter of the second cylinder is slightly smaller than that of the first cylinder.
Preferably, the lower surface of the top wall of the inner tank cover is provided with an annular groove, and the annular groove is formed by rotating a trapezoid containing an obtuse angle around the central axis of the inner tank cover surface so as to be matched and sealed with the part above the convex ring of the opening of the inner tank.
preferably, an external thread is arranged on the outer edge near the opening of the outer tank along the circumferential direction of the outer tank; the outer tank cover at least comprises an outer tank cover top wall and an outer tank cover skirt wall, wherein the outer tank cover skirt wall is hung down from the outer periphery of the outer tank cover top wall, and is provided with internal threads along the circumferential direction so as to be in threaded connection with the external threads of the outer tank; the center of the top wall of the outer tank cover is provided with a second through hole.
Preferably, the microwave digestion tank further comprises a pressure pipe, and the pressure pipe is tightly attached to the second end of the second cylinder of the inner tank cover through a pressure pipe nut.
Compared with the prior art, the microwave digestion tank provided by the invention can reach higher working pressure, is smaller in size and easy to process, and has automatic and manual pressure relief functions.
Drawings
FIG. 1 is a schematic cross-sectional view of a microwave digestion tank provided by the present invention;
FIG. 2 is an exploded schematic view of a microwave digestion tank provided by the present invention;
FIG. 3 is a schematic cross-sectional view of an inner vessel finish provided by the present invention;
FIG. 4 is a schematic cross-sectional view of an inner lid provided by the present invention;
FIG. 5 is a cross-sectional view of the inner tank lid sealing the inner tank mouth provided by the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or the two elements may be connected through an intermediate medium, and the specific meaning of the above terms in the present invention will be understood to those skilled in the art.
FIG. 1 is a schematic cross-sectional view of a microwave digestion tank provided by the present invention; fig. 2 is an exploded view of the microwave digestion tank provided by the present invention, and as shown in fig. 1-2, the microwave digestion tank comprises an outer tank 1, an inner tank 2 disposed inside the outer tank, an inner tank cover 4 and an outer tank cover 3, wherein the outer tank cover is screwed to the mouth of the outer tank and compresses the inner tank cover to the mouth of the inner tank.
The inner tank 2 is provided with a convex ring 21 along the circumferential direction at the outer edge near the tank opening to support the inner tank upwards at the opening, and the inner tank is placed in the outer tank, so that a certain space is kept between the outer wall of the inner tank and the inner wall of the outer tank. The part 22 above the inner tank mouth convex ring 21 is a circular ring 22 which is formed by pentagon and is separated with a set distance from the axis of the inner tank and vertically rotates around the axis 23 of the inner tank.
The inner can lid 4 comprises an inner can lid top wall 401, a first cylinder 402 and a second cylinder 404, the first end of the first cylinder 402 is continuously disposed in the center of the upper surface of the inner can lid top wall, the second end is connected to the second cylinder 404, and the second cylinder 404 is slightly smaller in diameter than the first cylinder such that the second end edge of the first cylinder forms an annular step.
An external thread is arranged on the outer edge near the opening of the outer tank 1 along the circumferential direction of the outer tank. The outer can lid 3 comprises at least an outer can lid top wall 301 and an outer can lid skirt wall 302, the outer can lid top wall 301 is preferably provided in a prismatic shape so as to facilitate handling; the outer can cover at least comprises an outer can cover top wall 301 and an outer can cover skirt wall 302, wherein the outer can cover skirt wall is hung down from the periphery of the outer can cover top wall and is provided with internal threads along the circumferential direction so as to be in threaded connection with the external threads of the outer can; the center of the top wall of the outer tank cover is provided with a second through hole 303 for extending a second cylinder 404 on the inner tank cover 4, and a sealing ring is arranged at the second through hole 303 for sealing when the second cylinder passes through. A plurality of air release holes such as the air release hole 7 are arranged at the position deviated from the center of the top wall of the outer tank cover.
The microwave digestion tank further comprises a pressure pipe 6, the pressure pipe 6 is tightly attached to the second end of the second cylinder 404 of the inner tank cover through a voltage pipe nut 5, and the voltage pipe nut 5 is provided with an air leakage hole 9.
Fig. 3 is a schematic cross-sectional view of the inner tank opening provided by the present invention, as shown in fig. 3, a convex ring 21 is circumferentially disposed on the outer edge of the inner tank 2 near the opening, a portion 22 above the convex ring 21 of the inner tank opening is a circular ring 22 formed by a pentagon and an axis 23 of the inner tank at a set distance d and vertically rotating around the axis 23 of the inner tank, a first side 221 of the pentagon is parallel to a fourth side 224 and is perpendicular to the axis 23 of the inner tank, and an included angle between a second side of the pentagon and the first side is an obtuse angle; the third side of the pentagon is parallel to the fifth side and parallel to the axis of the inner tank.
Fig. 4 is a schematic cross-sectional view of the inner can lid provided by the present invention, as shown in fig. 4, the inner can lid 4 includes an inner can lid top wall 401, a first cylinder 402 and a second cylinder 404, a first end of the first cylinder 402 is connected to the center of the upper surface of the inner can lid top wall, a second end of the first cylinder 402 is connected to the second cylinder 404, and the second cylinder 404 and the second end edge of the first cylinder form an annular step. A first through hole 403 is formed at the center of the inner tank cover top wall 401, and is formed in a conical shape near the lower surface of the inner tank cover top wall 401, so that steam is collected; the first end of the first cylinder 402 is disposed on the top surface of the top wall of the inner tank lid, the second end is connected to the first end of the second cylinder 404, and the second end of the second cylinder 404 is a free end. The second cylinder 404 forms an annular step with the edge of the second end of the first cylinder, the top wall of the inner tank cover, the first cylinder and the through holes in the second cylinder are communicated and used for leading out pressure so as to measure the pressure in the tank, or the second cylinder is used for artificial deflation after digestion is finished, and under the condition that the pressure is not required to be measured, the second end of the second cylinder is directly screwed with a plug, namely a deflation valve. The top wall of the inner tank cover, the first cylinder and the second cylinder are integrally formed. The lower surface of the inner canister lid top wall 401 is provided with an annular groove 405, the annular groove 405 being provided at the periphery of the first through hole. The annular groove is a trapezoidal annular groove, that is, the radial section of the groove is trapezoidal, the upper side 409 and the lower side 412 of the trapezoid are parallel, the included angle between the left side 410 and the upper side 409 is an obtuse angle, and the included angle between the right side 411 and the upper side 409 is also an obtuse angle. Outer cover 3 is screwed up outer jar mouth through the screw thread and when compressing tightly inner tank jar mouth with inner tank lid 4, the trapezoidal ring of 2 mouths of inner tank is embedded into trapezoidal annular groove to make the sealed inner tank of inner tank lid.
FIG. 5 is a cross-sectional view of the inner can lid of the present invention sealing the opening of the inner can, as shown in FIG. 5, where 407 is the side 409 of the trapezoid of the inner can lid rotated vertically about the axis of the inner can lid, and 406 is the side 410 of the trapezoid rotated vertically about the axis of the inner can lid; the plane of trapezoidal side 411 that is rotated vertically about the axis of the inner tank lid is 408. In the inner tank mouth, the surface that pentagonal limit 221 formed around inner tank axis vertical rotation is 227, the surface that pentagonal limit 222 formed around inner tank axis vertical rotation is 226, the contained angle of surface of revolution 407 and surface of revolution 406 is the same with the contained angle of surface of revolution 227 and surface of revolution 226, so, when atmospheric pressure is little, surface of revolution 407 and surface of revolution 227 in close contact with, surface of revolution 406 and surface of revolution 226 in close contact with, when atmospheric pressure is big, surface of revolution 407 and surface of revolution 227 form the gap, surface of revolution 406 and surface of revolution 226 form the gap, gas is let out from the gap.
When in use, the inner tank 2 is arranged in the outer tank 1, and the convex ring of the tank opening of the inner tank 2 is supported on the tank opening of the outer tank 1; then the inner tank cover is arranged at the tank opening of the inner tank, so that the tank opening of the inner tank is embedded into the annular groove on the lower surface of the top wall of the inner tank cover; then, the second cylinder of the inner tank cover extends out of the second through hole 303 of the outer tank cover, the outer tank cover is screwed on the outer tank, and the top wall of the inner tank cover is pressed to the opening of the inner tank through the first cylinder; finally, the pressure conduit is tightly attached to the second end surface of the second cylinder of the inner tank cover 4 by using a pressure pipe nut 5, so that a closed space is formed inside the digestion tank.
the inner tank and the inner tank cover can be prepared from PFA materials, and the outer tank cover can be prepared from non-metallic materials such as PEEK or aerospace fibers.
When clearing up the jar when having packed into the material that needs clear up and clearing up, when inner tank internal pressure risees gradually, outer tank cap top begins to produce deformation, the deformation volume of outer tank cap 3 reaches the default when reaching the safe pressure release point of design, inner tank 2 produces a little gap with the sealed face of inner tank cap 4 this moment, gas outflow inner tank 2, realize automatic safe pressure release from 7 pressure releases of outer tank cap pressure release hole, the deformation volume of outer tank cap 3 reduces when pressure descends, the gap of sealed face disappears, clear up jar pressurize continuation work.
The working principle of the invention is explained in detail above with the accompanying drawings. Those skilled in the art will appreciate that the description is for interpretation of the claims only. The scope of the invention is not limited by the description. Any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the disclosure of the present invention should be covered within the protective scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A microwave digestion tank comprises an outer tank, an inner tank arranged in the outer tank, an inner tank cover and an outer tank cover, and is characterized in that the outer tank cover is screwed to a tank opening of the outer tank through threads and tightly presses the inner tank cover to the tank opening of the inner tank, a first through hole is formed in the center of the top wall of the inner tank cover, and the first through hole forms a conical shape at a position close to the lower surface of the top wall of the inner tank cover, so that steam is convenient to gather; the inner tank is provided with a convex ring along the circumferential direction at the outer edge near the tank opening so as to support the inner tank upwards at the opening part, the inner tank is placed in the outer tank, a certain space is kept between the outer wall of the inner tank and the inner wall of the outer tank, the lower surface of the top wall of the inner tank cover is provided with an annular groove, and the annular groove is formed by rotating a trapezoidal surface around the central axis of the inner tank cover so as to be matched and sealed with the part above the convex ring at the tank opening of the inner tank; the outer can cover at least comprises an outer can cover top wall and an outer can cover skirt wall, the upper side of the trapezoid in the inner can cover vertically rotates around the axis of the inner can cover to form a first rotating surface of the groove, and the left side of the trapezoid vertically rotates around the axis of the inner can cover to form a second rotating surface (406) of the groove; the right side of the trapezoid vertically rotates around the axis of the inner tank cover to form a third rotating surface of the groove, the upper side and the lower side of the trapezoid are parallel, the included angle between the left side and the upper side is an obtuse angle, and the included angle between the right side and the upper side is an obtuse angle; the top wall of the outer tank cover is provided with a plurality of air release holes deviating from the center, the part above the convex ring of the opening of the inner tank is a circular ring formed by pentagons rotating vertically around the axis of the inner tank, wherein the first edge of the pentagon is parallel to the four edges and is vertical to the axis of the inner tank, and the included angle between the second edge of the pentagon and the first edge is an obtuse angle; the third edge of the pentagon is parallel to the fifth edge and is parallel to the axis of the inner tank, the first edge of the pentagon vertically rotates around the axis of the inner tank to form a first rotating surface of a part above the convex ring, the second edge of the pentagon vertically rotates around the axis of the inner tank to form a second rotating surface of a part above the convex ring, an included angle between the first rotating surface of the groove and the second rotating surface of the groove is the same as an included angle between the first rotating surface of the convex ring and the second rotating surface of the convex ring, so that when the air pressure is small, the first rotating surface of the groove is in close contact with the first rotating surface of the convex ring, the second rotating surface of the groove is in close contact with the second rotating surface of the convex ring, when the air pressure is large, the first rotating surface of the groove and the first rotating surface of the convex ring form a gap, the second rotating surface of the groove and the second rotating surface of the convex ring form a gap, and the gas is discharged from the gap; when clearing up the jar when having packed into the material that needs cleared up and clearing up, when inner tank internal pressure risees gradually, outer tank cap top begins to produce deformation, the deformation volume of outer tank cap reaches the default when reaching the safe pressure release point of design, at this moment, the sealed face of inner tank and inner tank cap produces a little gap, the gas outflow inner tank, realize automatic safe pressure release from outer tank cap pressure release hole pressure release, the deformation volume of outer tank cap reduces when pressure descends, the gap of the sealed face of inner tank and inner tank cap disappears, clear up jar pressurize continuation work.
2. The microwave digestion tank according to claim 1, wherein the inner tank cover comprises an inner tank cover top wall, a first cylinder, a first end of the first cylinder being disposed in the center of the upper surface of the inner tank cover top wall, a second end being connected to a second cylinder, the second cylinder having a diameter slightly smaller than the diameter of the first cylinder.
3. The microwave digestion tank according to claim 2, wherein an external thread is provided on the outer edge near the tank mouth of the outer tank along the circumferential direction of the outer tank; the outer can cover skirt wall hangs down from outer can cover top wall periphery, and is provided with the internal thread along circumference in order to be connected with the external screw thread of outer jar.
4. A microwave digestion tank according to claim 3, further comprising a pressure tube that is held against the second end of the second cylinder of the inner tank lid by a pressure tube nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636703.2A CN106018057B (en) | 2016-08-06 | 2016-08-06 | Microwave digestion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636703.2A CN106018057B (en) | 2016-08-06 | 2016-08-06 | Microwave digestion tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106018057A CN106018057A (en) | 2016-10-12 |
| CN106018057B true CN106018057B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610636703.2A Active CN106018057B (en) | 2016-08-06 | 2016-08-06 | Microwave digestion tank |
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| CN (1) | CN106018057B (en) |
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| CN106018057A (en) | 2016-10-12 |
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Effective date of registration: 20191101 Address after: 215000, Jiangsu, Suzhou Province Industrial Park, Jinji Lake Road, 99, Suzhou, Suzhou, North District, 23 buildings, room 214 Applicant after: Suzhou Xinyi Scientific Instrument Co., Ltd Address before: 250101 Shandong city of Ji'nan province high tech Zone ten Road No. 7000 Han Yu Valley A3 block 1 building fourth layer Applicant before: Jinan Hanon Instruments Co., Ltd. |
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