CN218339838U - Micro calorimetric sample pool - Google Patents
Micro calorimetric sample pool Download PDFInfo
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- CN218339838U CN218339838U CN202222721285.0U CN202222721285U CN218339838U CN 218339838 U CN218339838 U CN 218339838U CN 202222721285 U CN202222721285 U CN 202222721285U CN 218339838 U CN218339838 U CN 218339838U
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Abstract
The utility model relates to a chemistry test equipment field particularly, relates to a micro calorimetric sample pond. The micro calorimetric sample pool comprises a feeding hopper, a spiral shaft and a sample tube; the bottom of the charging hopper is provided with a mounting hole, the screw shaft is rotatably matched with the mounting hole, and the screw shaft is used for rotating relative to the charging hopper under the action of external force so as to lead out the material in the charging hopper; the sample tube is sleeved on the feeding hopper, the bottom of the feeding hopper is contained in the sample tube, and the sample tube is used for receiving materials led out by the spiral shaft. The micro calorimetric sample pool has a simple structure, is convenient to use, can continuously and respectively charge materials in the using process, and powder does not need to be prepared into solution for sample charging; in addition, the temperature of the materials to be added can be consistent with that of the reaction system, so that the heat fluctuation caused by the temperature difference when the materials are added is prevented.
Description
Technical Field
The utility model relates to a chemistry test equipment field particularly, relates to a micro calorimetric sample pond.
Background
The micro calorimetric technology is a thermal conductivity type calorimeter developed based on Calvet, the micro calorimeter can accurately measure the micro temperature rise in a calorimetric pool, the sensitivity can reach one ten-thousandth, the heat release/absorption rate of a microwatt level can be detected, and the micro calorimeter is widely applied to the fields of life sciences, medicine research and development, chemical engineering process, energetic materials and the like. In the field of materials compatibility studies or continuous or semi-batch chemical reactions, a portion of the material is added during the course of the reaction. Such as nitration, the material to be nitrated is usually added in portions and continuously stirred in order to control the nitration rate and prevent the danger of reaction acceleration or temperature runaway caused by one addition.
At present, a micro calorimeter mainly realizes midway feeding of materials through a mixing pool or a titration pool. The film or ampoule bottle mixed sample pool is used for respectively placing reaction materials in an upper cavity and a lower cavity of the mixed pool, and the materials to be added are mixed with a reaction system by puncturing a film or squeezing a bottle during testing; the turning mixing sample pool is to place the material in the upper and lower parts of the reaction pool and to realize the mixing of the material and the reaction system by means of gravity or inertial turning. The titration sample cell is to prepare reactants into a solution as a titration solution, add the solution into a micro syringe and add the solution into a reaction system through syringe titration. The above sample cells have their use limitations: the mixed sample cell (membrane and turning) can only realize one-time feeding; the titration sample cell requires that the material to be added is in a liquid state or is prepared into a solution, and the temperature of the material to be added is different from that of the reaction system, so that temperature fluctuation can be caused when the material to be added is added. The above reaction tanks cannot realize the stirring function of the reaction system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a micro calorimetric sample pool which has simple structure and convenient use, can continuously and respectively feed materials in the using process, and powder does not need to be prepared into solution for sample feeding; in addition, the temperature of the materials to be added can be consistent with that of the reaction system, so that the heat fluctuation caused by the temperature difference when the materials are added is prevented.
The embodiment of the utility model is realized like this:
the utility model provides a micro calorimetric sample pool, which comprises a feeding hopper, a spiral shaft and a sample tube;
the bottom of the charging hopper is provided with a mounting hole, the screw shaft is rotatably matched with the mounting hole, and the screw shaft is used for rotating relative to the charging hopper under the action of external force so as to lead out the material in the charging hopper;
the sample tube is sleeved on the feeding hopper, the bottom of the feeding hopper is contained in the sample tube, and the sample tube is used for receiving materials led out by the spiral shaft.
In an alternative embodiment, the axis of the hopper coincides with the axis of rotation of the screw shaft.
In an alternative embodiment, the screw shaft includes a first section, a second section, and a third section;
the first section, the second section and the third section are sequentially connected, the second section is accommodated in the loading hopper, the first section extends out from the top of the loading hopper, and the third section extends out from the bottom of the loading hopper;
the third section is located between the bottom of the feeding hopper and the bottom of the sample tube, and the third section is used for stirring materials in the sample tube.
In an alternative embodiment, the micro calorimetry sample cell further comprises a stirring blade connected to the third section.
In an alternative embodiment, the microcalorimetry sample cell further comprises a gudgeon, which is attached to the first section.
In an alternative embodiment, the outer circumferential surface of the stub shaft is provided with rotation markings.
In an optional embodiment, an internal thread is arranged at the opening of the sample tube, and an external thread matched with the internal thread is arranged on the peripheral surface of the feeding hopper.
In an alternative embodiment, the external thread is located at the top of the hopper.
In an optional embodiment, the micro calorimetry sample cell further comprises a cap, the cap is disposed on the top of the loading hopper and the sample tube, and the cap is detachably connected to the sample tube or the loading hopper.
In an alternative embodiment, the cap defines a through hole for the screw shaft to pass through.
The utility model discloses beneficial effect includes:
the micro calorimetric sample pool comprises a feeding hopper, a spiral shaft and a sample tube; the bottom of the charging hopper is provided with a mounting hole, the screw shaft is rotatably matched with the mounting hole, and the screw shaft is used for rotating relative to the charging hopper under the action of external force so as to lead out the material in the charging hopper; the sample tube is sleeved on the feeding hopper, the bottom of the feeding hopper is contained in the sample tube, and the sample tube is used for receiving materials led out by the spiral shaft. The micro calorimetric sample pool has a simple structure, is convenient to use, can continuously and respectively charge materials in the using process, and powder does not need to be prepared into solution for sample charging; in addition, the temperature of the materials to be added can be consistent with that of the reaction system, so that the heat fluctuation caused by the temperature difference when the materials are added is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a micro calorimetric sample cell in an embodiment of the present invention.
The icon is 200-micro calorimetric sample pool; 210-a loading hopper; 220-a helical axis; 230-sample tube; 211-mounting holes; 221-a first segment; 222-a second section; 223-a third segment; 240-stirring blade; 250-a shaft head; 251-rotation mark; 260-pipe cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present embodiment provides a micro calorimetry sample cell 200, in which the micro calorimetry sample cell 200 includes a hopper 210, a spiral shaft 220 and a sample tube 230;
the bottom of the charging hopper 210 is provided with a mounting hole 211, the screw shaft 220 is rotatably matched with the mounting hole 211, and the screw shaft 220 is used for rotating relative to the charging hopper 210 under the action of external force so as to guide out the material in the charging hopper 210;
the sample tube 230 is sleeved on the feeding hopper 210, and the bottom of the feeding hopper 210 is received in the sample tube 230, and the sample tube 230 is used for receiving the material guided out by the screw shaft 220.
Referring to fig. 1, the operating principle of the micro calorimetry sample cell 200 is as follows:
the micro calorimetric sample pool 200 comprises a feeding hopper 210, a spiral shaft 220 and a sample tube 230; wherein, the loading hopper 210 and the sample tube 230 are used for accommodating samples; the screw shaft 220 is rotatably matched with the mounting hole 211, the screw shaft 220 is used for rotating relative to the feeding hopper 210 under the action of external force to guide out the material in the feeding hopper 210, so that the material in the feeding hopper 210 can be added into the paper sample tube 230 through the rotation of the screw shaft 220 and further reacts with the material in the sample tube 230, and through the feeding mode, the continuous batch feeding of the material can be realized, and the amount of the material added into the sample tube 230 by the feeding hopper 210 can be accurately controlled through the control of the rotating amount of the screw shaft 220;
in addition, because the feeding hopper 210 is connected with the sample tube 230 and the material to be added into the sample tube 230 is stored in the feeding hopper 210, the temperature of the material to be added and the temperature of the reaction system can be consistent by adding the material to be mixed with the material in the sample tube 230 into the feeding hopper 210, thereby preventing the heat fluctuation caused by the temperature difference when the material is added;
in conclusion, the micro calorimetric sample pool 200 has a simple structure, is convenient to use, can continuously and respectively feed materials in the using process, and powder does not need to be prepared into solution for sample feeding; in addition, the temperature of the material to be added can be consistent with that of the reaction system, so that heat fluctuation caused by temperature difference when the material is added is prevented; and can meet the requirements of semi-batch reaction or continuous reaction test of micro calorimetric reaction.
Further, referring to fig. 1, in the present embodiment, when the screw shaft 220 is disposed, the screw shaft 220 functions to drive the material in the hopper 210 to be conveyed outwards by rotating relative to the hopper 210, that is, the screw shaft 220 functions to convey the material, and in the process, to facilitate the rotation of the screw shaft 220, the axis of the hopper 210 may coincide with the rotation axis of the screw shaft 220. Moreover, when the screw shaft 220 is installed, in order to improve the stability of the screw shaft 220 in the using process, a mounting bracket may be further provided, the mounting bracket is connected to the hopper 210, and the screw shaft 220 is rotatably connected to the mounting bracket, so that the stability of the screw shaft 220 can be improved.
In providing the screw shaft 220, in order to facilitate the operation and installation of the screw shaft 220, the screw shaft 220 includes a first section 221, a second section 222, and a third section 223; the first section 221, the second section 222 and the third section 223 are connected in sequence, the second section 222 is accommodated in the loading hopper 210, the first section 221 extends from the top of the loading hopper 210, and the third section 223 extends from the bottom of the loading hopper 210; wherein the third segment 223 is located between the bottom of the loading hopper 210 and the bottom of the sample tube 230, and the third segment 223 is used for stirring the material in the sample tube 230;
wherein a first segment 221 extends from the top of the hopper 210 for operation to facilitate rotation of the auger shaft 220 relative to the hopper 210; the second section 222 located in the hopper 210 is used for conveying the material in the hopper 210 to the sample tube 230; the third segment 223 between the bottom of the loading hopper 210 and the bottom of the sample tube 230 stirs the material in the sample tube 230 during the rotation of the screw shaft 220;
in summary, the screw shaft 220 is used to add the material into the sample tube 230 by rotation, and the material in the sample tube 230 can be stirred by rotation of the screw shaft 220 while the material is added.
To enable the screw shaft 220 to stir the materials in the sample tube 230, the micro calorimetry sample cell 200 further comprises a stirring blade 240 connected to the third section 223. Wherein, the stirring blade 240 is located between the bottom of the loading hopper 210 and the bottom of the sample tube 230.
In order to facilitate the rotation of the screw shaft 220, the micro thermal sample cell 200 further includes a shaft head 250, and the shaft head 250 is connected to the first section 221. It should be noted that, the arrangement of the spindle head 250 can facilitate the transmission connection between the screw spindle 220 and the external driving structure;
in addition to the spindle head 250, in order to facilitate statistics of the rotation amount of the spindle head 250, a rotation mark 251 is provided on the outer circumferential surface of the spindle head 250.
Based on the above, referring to fig. 1, in order to improve the installation stability of the feeding hopper 210, the feeding hopper 210 may be detachably connected to the sample tube 230, and thus, an internal thread may be disposed at the opening of the sample tube 230 and an external thread matching the internal thread may be disposed on the outer peripheral surface of the feeding hopper 210 when the feeding hopper 210 is connected to the sample tube 230 by a threaded connection. When the external thread of the hopper 210 is provided, the external thread may be positioned at the top of the hopper 210, so as to ensure that the bottom of the hopper 210 is positioned in the sample tube 230.
In addition, in order to seal the loading hopper 210 and the sample tube 230, the micro calorimetry sample cell 200 further comprises a cap 260, the cap 260 is disposed on the top of the loading hopper 210 and the sample tube 230, and the cap 260 is detachably connected to the sample tube 230 or the loading hopper 210. In addition, the cap 260 is formed with a through hole for the screw shaft 220 to pass through, and the through hole is used for the first segment 221 to pass through.
In summary, referring to fig. 1, based on the above, the micro calorimetry sample cell 200 can be made of stainless steel, and can be provided with a teflon plastic lining, and the tube cap 260 can be connected to the hopper 210 or the sample tube 230 by a screw thread or a snap-fit manner;
during the test, firstly, a sample (powder or liquid) is added into the feeding hopper 210, and then the feeding hopper 210 is connected with the sample tube 230 and the tube cap 260;
placing the micro calorimetric sample pool 200 into a micro calorimetric test furnace cavity;
when the preset condition is met and the material needs to be added, the shaft head 250 of the spiral shaft 220 is rotated, the material falls into the sample tube 230 from the feeding hopper 210 under the action of gravity and the spiral shaft 220, and simultaneously the stirring blades 240 are driven by the spiral shaft 220 to mix the reaction system; the purposes of online batch sample adding and stirring of the micro calorimetric test materials are achieved by adjusting the rotating speed and the number of revolutions of the shaft head 250;
from this, this trace calorimetric sample pool 200 has effectively solved the problem of the online application of sample of trace calorimetric sample pool, can realize the continuous application of sample in batches of powder and liquid material to wait to add the material temperature unanimous with reaction system temperature, prevent the temperature fluctuation that plus material temperature difference brought, can realize reaction system's mixing stirring function simultaneously, can satisfy the semi-batch reaction or the experimental demand of continuous reaction of trace calorimetric reaction moreover.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A micro calorimetry sample cell, characterized in that:
the micro calorimetric sample pool comprises a feeding hopper, a spiral shaft and a sample tube;
the bottom of the charging hopper is provided with a mounting hole, the screw shaft is rotatably matched with the mounting hole, and the screw shaft is used for rotating relative to the charging hopper under the action of external force so as to guide out the material in the charging hopper;
the sample tube is sleeved on the feeding hopper, the bottom of the feeding hopper is contained in the sample tube, and the sample tube is used for receiving materials led out by the spiral shaft.
2. The micro calorimetry sample cell according to claim 1, wherein:
the axis of the loading hopper is coincided with the rotation axis of the spiral shaft.
3. The micro calorimetry sample cell according to claim 1, wherein:
the screw shaft comprises a first section, a second section and a third section;
the first section, the second section and the third section are sequentially connected, the second section is accommodated in the loading hopper, the first section extends out of the top of the loading hopper, and the third section extends out of the bottom of the loading hopper;
the third section is located between the bottom of the feeding hopper and the bottom of the sample tube, and the third section is used for stirring the materials in the sample tube.
4. A microcalorimetric sample cell as recited in claim 3, wherein:
the micro calorimetric sample pool also comprises a stirring blade connected with the third section.
5. The microcalorimetric sample cell of claim 4, wherein:
the micro calorimetric sample pool also comprises a shaft head which is connected with the first segment.
6. The micro calorimetry sample cell according to claim 5, wherein:
the outer peripheral surface of the shaft head is provided with a rotating mark.
7. The micro calorimetry sample cell according to claim 1, wherein:
the opening part of sample tube is provided with the internal thread, the loading hopper outer peripheral face be provided with internal thread complex external screw thread.
8. The micro calorimetry sample cell according to claim 7, wherein:
the external thread is positioned at the top of the loading hopper.
9. The micro calorimetry sample cell according to any of claims 1 to 8, wherein:
the micro calorimetric sample pool also comprises a pipe cap, the pipe cap is sleeved on the top of the loading hopper and the top of the sample tube, and the pipe cap is detachably connected with the sample tube or the loading hopper.
10. A microcalorimetric sample cell as recited in claim 9, wherein:
the pipe cap is provided with a through hole for the spiral shaft to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222721285.0U CN218339838U (en) | 2022-10-14 | 2022-10-14 | Micro calorimetric sample pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222721285.0U CN218339838U (en) | 2022-10-14 | 2022-10-14 | Micro calorimetric sample pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218339838U true CN218339838U (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222721285.0U Active CN218339838U (en) | 2022-10-14 | 2022-10-14 | Micro calorimetric sample pool |
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|---|---|
| CN (1) | CN218339838U (en) |
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- 2022-10-14 CN CN202222721285.0U patent/CN218339838U/en active Active
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