Anti-overflow crucible for thermal analyzer
Patent Information
- Application Number
- CN202521789032.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-08-21
AI Technical Summary
它能够同时测量样品在程序控温过程中发生的质量变化和热效应（如吸热或放热），在烟草行业中广泛用于材料的热性能研究，该仪器炉体内加热最高温度可达1500°C以上，内置微量天平（精度可达0.1μg），实时记录质量变化，可测量多种物质如固体、液体、粉末等，在进行液体测试过程中，会发生因沸腾而产生气泡堆积导致被测物质易于溢出坩埚外，导致称量误差较大的情况出现，而影响实验数据的准确性
[0013] The overflow-proof crucible for the thermal analyzer of this utility model has the following characteristics: When the liquid in the crucible reaches its boiling point and generates bubbles due to violent vaporization, the first piercing needle on the inner wall of the crucible bottom and the second piercing needle on the inner wall of the crucible lid can pierce the bubbles. At the same time, the gas generated after the bubbles are pierced can be discharged in time through the vent on the crucible lid. This prevents the accumulation of bubbles after the liquid boils and makes it less likely for the liquid to overflow, thus achieving the overflow prevention effect and ensuring the accuracy of experimental data.
Smart Images
Figure CN224656813U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tobacco detection technology, specifically relating to an anti-overflow crucible for a thermal analyzer. Background Technology
[0002] A thermogravimetric / differential thermal analyzer (TGA / DTA, or simultaneous thermal analyzer) is an advanced instrument that integrates thermogravimetric analysis (TGA) and differential thermal analysis (DTA) or differential scanning calorimetry (DSC) functions. It can simultaneously measure the mass change and thermal effects (such as endothermic or exothermic) of a sample during programmed temperature control. Widely used in the tobacco industry for studying the thermal properties of materials, this instrument can reach temperatures above 1500°C within its furnace. It has a built-in microbalance (accuracy up to 0.1 μg) to record mass changes in real time and can measure various substances such as solids, liquids, and powders. During liquid testing, boiling can cause bubbles to accumulate, leading to the substance easily overflowing the crucible and resulting in significant weighing errors, thus affecting the accuracy of experimental data.
[0003] Therefore, how to design an anti-overflow crucible for a thermal analyzer so that the liquid does not easily overflow the crucible during boiling, thus ensuring the accuracy of experimental data, has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] The purpose of this invention is to provide an anti-overflow crucible for a thermal analyzer to solve the aforementioned technical problems in the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] An anti-overflow crucible for a thermal analyzer includes a crucible bucket and a crucible lid. The crucible lid is used to cover the upper port of the crucible bucket. A plurality of first piercing needles are vertically arranged on the inner wall surface of the bottom of the crucible bucket, and a plurality of second piercing needles are vertically arranged on the inner wall surface of the crucible lid. The crucible lid is also provided with a plurality of vent holes.
[0007] Preferably, the crucible is a cylindrical container, and the crucible lid is a cylindrical lid that matches the shape of the crucible.
[0008] Preferably, the vent is an elongated hole.
[0009] Preferably, each of the second piercing needles is disposed on the inner wall surface of the crucible lid between two adjacent vent holes.
[0010] Preferably, the first puncture needles and the second puncture needles are arranged alternately.
[0011] Preferably, each of the first piercing needles is evenly distributed on the inner wall surface of the bottom of the barrel.
[0012] The beneficial effects of this utility model are as follows:
[0013] The overflow-proof crucible for the thermal analyzer of this utility model has the following characteristics: When the liquid in the crucible reaches its boiling point and generates bubbles due to violent vaporization, the first piercing needle on the inner wall of the crucible bottom and the second piercing needle on the inner wall of the crucible lid can pierce the bubbles. At the same time, the gas generated after the bubbles are pierced can be discharged in time through the vent on the crucible lid. This prevents the accumulation of bubbles after the liquid boils and makes it less likely for the liquid to overflow, thus achieving the overflow prevention effect and ensuring the accuracy of experimental data. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of this utility model will be further described in detail with reference to the drawings.
[0015] Figure 1 A schematic diagram of the crucible container provided in an embodiment of this utility model;
[0016] Figure 2 This is a schematic diagram of the crucible lid provided in an embodiment of the present invention.
[0017] Marked in the attached diagram:
[0018] 11. Crucible container; 12. Inner wall of the bottom of the container; 13. First piercing needle;
[0019] 21. Crucible lid; 22. Second piercing needle; 23. Vent hole. Detailed Implementation
[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0021] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.
[0022] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0023] In all the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0024] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an anti-overflow crucible for a thermal analyzer, which includes a crucible bucket 11 and a crucible cover 21. The crucible cover 21 is used to cover the upper port of the crucible bucket 11. A plurality of first piercing needles 13 are vertically arranged on the inner wall surface 12 of the bottom of the crucible bucket, and a plurality of second piercing needles 22 are vertically arranged on the inner wall surface of the crucible cover 21. A plurality of vent holes 23 are also provided on the crucible cover.
[0025] The overflow-proof crucible for a thermal analyzer provided in this embodiment of the invention, when the liquid in the crucible reaches its boiling point and generates bubbles due to violent vaporization, can be punctured by a first piercing needle 13 provided on the inner wall surface 12 of the bottom of the crucible and a second piercing needle 22 provided on the inner wall surface of the crucible lid 21. At the same time, the gas generated after the bubbles are punctured can be discharged in time through the vent hole 23 on the crucible lid, so that bubbles are less likely to accumulate after the liquid boils, and the liquid is less likely to overflow. This achieves the overflow prevention effect and thus better ensures the accuracy of experimental data.
[0026] Furthermore, the crucible bucket 11 is a cylindrical bucket, and the crucible lid 21 is a cylindrical lid that matches the shape of the crucible bucket.
[0027] Specifically, the vent 23 is an elongated hole, which allows for better venting and makes it less likely for liquid to overflow from the crucible.
[0028] Preferably, each of the second piercing needles 22 is disposed on the inner wall surface of the crucible lid between two adjacent vent holes 23. It is understood that the first piercing needle can pierce air bubbles in the liquid, and the second piercing needle can pierce air bubbles on or about to reach the liquid surface.
[0029] Furthermore, the first piercing needles 13 and the second piercing needles are arranged alternately. Using this design, the first and second piercing needles can pierce bubbles at different points on the liquid surface, making it less likely for the liquid to overflow from the crucible, thus achieving a better spill prevention effect.
[0030] Preferably, the overflow-proof crucible used in this thermal analyzer is an alumina crucible, which provides good thermal conductivity, high strength and toughness, good high-temperature resistance, resistance to cracking, ability to withstand sudden temperature changes, resistance to corrosion, acids, alkalis and reducing substances, and strong resistance to high-temperature corrosion.
[0031] Specifically, the first piercing needles are evenly distributed on the inner wall surface of the bottom of the barrel. Preferably, the second piercing needles are evenly distributed on the inner wall surface of the crucible lid.
[0032] In one embodiment, the lengths of the first puncture needles in the vertical direction may be the same or different, and the lengths of the second puncture needles in the vertical direction may be the same or different. The specific lengths of the first and second puncture needles can be flexibly set according to the actual situation.
[0033] In another embodiment, the lengths of the second piercing needles in the vertical direction can be different, thereby enabling the piercing of air bubbles at different heights within the crucible, thus improving the spill prevention effect.
[0034] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. An anti-overflow crucible for a thermal analyzer, characterized in that, It includes a crucible bucket and a crucible lid. The crucible lid is used to cover the upper port of the crucible bucket. Multiple first piercing needles are vertically arranged on the inner wall surface of the bottom of the crucible bucket. Multiple second piercing needles are vertically arranged on the inner wall surface of the crucible lid. Multiple vent holes are also provided on the crucible lid.
2. The anti-overflow crucible for a thermal analyzer according to claim 1, characterized in that, The crucible bucket is a cylindrical bucket, and the crucible lid is a cylindrical lid adapted to the shape of the crucible bucket.
3. The anti-overflow crucible for a thermal analyzer according to claim 1, characterized in that, The vent is a long, narrow hole.
4. The anti-overflow crucible for a thermal analyzer according to claim 3, characterized in that, Each of the second piercing needles is respectively disposed on the inner wall surface of the crucible lid between two adjacent ventilation holes.
5. The anti-overflow crucible for a thermal analyzer according to claim 1, characterized in that, The first puncture needles and the second puncture needles are arranged alternately.
6. The anti-overflow crucible for a thermal analyzer according to any one of claims 1 to 5, characterized in that, Each of the first piercing needles is evenly distributed on the inner wall surface of the bottom of the barrel.