CN217304977U - Easily decomposed sample sealing detection melting point tube - Google Patents
Easily decomposed sample sealing detection melting point tube Download PDFInfo
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- CN217304977U CN217304977U CN202221083872.5U CN202221083872U CN217304977U CN 217304977 U CN217304977 U CN 217304977U CN 202221083872 U CN202221083872 U CN 202221083872U CN 217304977 U CN217304977 U CN 217304977U
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- melting point
- heating
- heating cylinder
- fixedly connected
- sealing cover
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Abstract
The utility model discloses a sealed melting point pipe that detects of easy decomposition sample belongs to instrument analysis technical field. Easy decomposition sample seals and detects melting point pipe, including the cartridge heater, still include: the sealing cover is detachably connected to the heating cylinder, a thermometer is fixedly connected to the sealing cover, and a capillary tube is detachably connected to the sealing cover; the heating block is fixedly connected in the heating cylinder; the micro water pump is fixedly connected to the heating cylinder and is communicated with a water suction pipe and a water drainage pipe; the utility model discloses can mutually support through the heating piece of fixed connection in the cartridge heater and the miniature pump outside the cartridge heater, can fully heat the paraffin oil that holds in the cartridge heater and make its temperature evenly distributed, guarantee the temperature to capillary even heating and thermometer real-time feedback heating to can accurate effectual detection go out the melting point of the interior easy decomposition sample of capillary, avoided the potential safety hazard with naked light heating, improved the accuracy that sample melting point detected.
Description
Technical Field
The utility model relates to an instrument analysis technical field especially relates to the sealed melting point tube that detects of easy decomposition sample.
Background
The melting point of a sample is often used as an aid to detect product purity, and may be used for easy identification when other qualitative analysis data is not sufficient. Some compounds are liable to be decomposed by heating, such as generation of gas, carbonization, discoloration, etc., and the melting point of the original compound is lowered by mixing with impurities due to the formation of the decomposition product. The amount of the decomposition products varies with the heating time, so the melting point of the sample easy to decompose varies with the heating speed. In order to measure the melting point repeatedly, the melting point of the easily decomposable substance is often described in more detail.
Traditional sample detects melting point pipe, the method that heats is carried out to the b venturi tube through alcohol burner or gas lamp more, need use naked light to heat among this kind of detection method testing process, certain potential safety hazard has, and carry out the paraffin oil bath heating process to the capillary that holds the sample, its paraffin oil heat transfer only transmits through hot convection current mode in the pure, the temperature evenly distributed of hot wax oil everywhere in b venturi tube can't be guaranteed to this kind of heat transfer mode, thereby it has certain error to send sample melting point testing result, the accuracy that the sample melting point detected has been reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the traditional sample detection melting point in the prior art uses open fire heating to have potential safety hazard and uneven temperature distribution in the b-shaped pipe, and the easy-to-decompose sample sealing detection melting point pipe that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
easy decomposition sample seals and detects melting point pipe, including the cartridge heater, still include: the sealing cover is detachably connected to the heating cylinder, a thermometer is fixedly connected to the sealing cover, and a capillary tube is detachably connected to the sealing cover; the heating block is fixedly connected in the heating cylinder; the miniature water pump is fixedly connected to the heating cylinder, the miniature water pump is communicated with a water suction pipe and a water discharge pipe, and one ends of the water suction pipe and the water discharge pipe, which are far away from the miniature water pump, are respectively communicated with the upper part and the lower part of the heating cylinder.
In order to facilitate the sealing of the heating cylinder, preferably, a threaded cylinder is fixedly connected to the sealing cover, and the threaded cylinder is in threaded connection with the opening of the heating cylinder.
In order to seal the capillary tube conveniently, furthermore, a threaded hole is formed in the sealing cover, and the opening end of the capillary tube is connected in the threaded hole in a threaded mode.
In order to facilitate observation of the display temperature of the thermometer in the heating cylinder, the heating cylinder is preferably transparent glass.
In order to facilitate the observation of the change of the sample in the capillary, further, a magnifying observation window is arranged on the heating cylinder.
In order to facilitate the heating cylinder to be fixedly adsorbed on the experiment table, preferably, the bottom of the heating cylinder is fixedly connected with a sucker.
Compared with the prior art, the utility model provides a sealed melting point pipe that detects of easy decomposition sample possesses following beneficial effect:
1. this sealed melting point pipe that detects of easy decomposition sample adsorbs to fix the cartridge heater on glossy laboratory bench through the sucking disc to avoid heating a section of thick bamboo to bump because of the mistake in the experimentation and empty, influence the experimental result.
2. This sealed melting point pipe that detects of easy decomposition sample can heat the paraffin oil in the cartridge heater through the heating piece, has avoided the potential safety hazard that uses naked light heating.
3. This sealed melting point pipe that detects of easy decomposition sample, inhale through the paraffin oil that the upper temperature is lower in with the cartridge heater through the pipe that absorbs water through miniature pump, and carry to the heating block top of cartridge heater lower floor through the drain pipe, mutually support with the heating block, so circulate, thereby can mix the paraffin oil of each layer in the cartridge heater fast, paraffin oil temperature distribution is even in making the cartridge heater, thereby can guarantee that paraffin oil carries out the even heating to the capillary in the cartridge heater, guarantee the sample thermally equivalent in the capillary, and the temperature that the thermometer shows in real time can be accurate feedback out the paraffin oil temperature to the capillary heating, thereby the accuracy that the sample melting point detected has been improved.
The device in not relate to the part all the same with prior art or can adopt prior art to realize, the utility model discloses can mutually support through the heating piece of fixed connection in the cartridge heater and the miniature pump outside the cartridge heater, can fully heat the paraffin oil that holds in the cartridge heater and make its temperature evenly distributed, guaranteed the temperature to capillary even heating and thermometer real-time feedback heating to can be accurate effectual detect out the fusing point of the interior easy decomposition sample of capillary, avoided the potential safety hazard with naked light heating, improved the accuracy that the sample fusing point detected.
Drawings
Fig. 1 is a first schematic structural view of a melting point tube for sealing and detecting an easily decomposable sample provided by the present invention;
FIG. 2 is a schematic structural view of part A in FIG. 1 of the easily decomposable sample sealing detection melting point tube provided by the present invention;
fig. 3 is a schematic structural diagram ii of the melting point tube for sealing and detecting easily decomposable samples provided by the utility model.
In the figure: 1. a heating cylinder; 11. a heating block; 12. a suction cup; 13. magnifying the observation window; 2. a sealing cover; 21. a threaded barrel; 22. a thermometer; 23. a threaded hole; 3. a micro water pump; 31. a drain pipe; 32. a suction pipe; 4. a capillary tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-3, the melting point tube for sealing and detecting the easily decomposed sample comprises a heating cylinder 1 and further comprises: the sealing cover 2 is detachably connected to the heating cylinder 1, the thermometer 22 is fixedly connected to the sealing cover 2, and the capillary tube 4 is detachably connected to the sealing cover 2; a heating block 11 fixedly connected in the heating cylinder 1; the miniature water pump 3 is fixedly connected to the heating cylinder 1, the miniature water pump 3 is communicated with a water suction pipe 32 and a water drainage pipe 31, and one ends, far away from the miniature water pump 3, of the water suction pipe 32 and one end, far away from the miniature water pump 31, of the water suction pipe 31 are respectively communicated with the upper portion and the lower portion of the heating cylinder 1.
Fixedly connected with screw thread section of thick bamboo 21 on sealed lid 2, screw thread section of thick bamboo 21 and 1 opening part threaded connection of heating cylinder, seted up screw hole 23 in sealed lid 2, capillary 4 opening end threaded connection is in screw hole 23.
The heating cylinder 1 is made of transparent glass, and the heating cylinder 1 is provided with an amplification observation window 13.
The bottom of the heating cylinder 1 is fixedly connected with a suction cup 12.
In the using process of the device, the heating cylinder 1 can be adsorbed and fixed on a smooth experiment table through the sucking disc 12 so as to avoid the phenomenon that the heating cylinder 1 topples over due to mistaken collision in the experiment process and the experiment result is influenced, then a proper amount of paraffin oil is poured into the heating cylinder 1, the liquid level of the poured paraffin oil needs to be higher than the communication position of the water suction pipe 32 and the heating cylinder 1 so as to ensure that the paraffin oil can be sucked through the water suction pipe 32 in the working process of the micro water pump 3, then a sample to be detected which is easy to decompose is filled into the capillary 4, the capillary 4 is vibrated to ensure that the sample slides to the bottom of the capillary 4 along the inner wall of the capillary 4, the opening end of the capillary 4 is installed in the threaded hole 23 so as to seal the capillary 4, then the sealing cover 2 is installed on the opening of the heating cylinder 1 in a threaded manner, the thermometer 22 and the capillary 4 are extended into the paraffin oil in the heating cylinder 1 in parallel, the heating block 11 and the micro water pump 3 are started, the heating block 11 can heat the paraffin oil of its top, make the paraffin oil temperature of lower floor rise in the cartridge heater 1, the lower paraffin oil of upper strata temperature inhales in the cartridge heater 1 through the pipe 32 that absorbs water of 3 accessible of miniature pump simultaneously, and carry to the heating block 11 tops of 1 lower floor of cartridge heater through drain pipe 31, so circulation, thereby can mix the paraffin oil of each layer in the cartridge heater 1 fast, make paraffin oil temperature distribution in the cartridge heater 1 even, thereby can guarantee that paraffin oil carries out the even heating to capillary 4 in the cartridge heater 1, guarantee the sample thermally equivalent in capillary 4, and the temperature that thermometer 22 shows in real time can be accurate feedback out the paraffin oil temperature to capillary 4 heating, thereby the accuracy that the sample melting point detected has been improved.
Because the heating cylinder 1 is made of transparent glass, the temperature displayed on the thermometer 22 can be observed in real time in the detection process, the amplification observation window 13 arranged on the heating cylinder 1 can amplify and observe the part of the capillary tube 4 positioned in the heating cylinder 1, where the sample is arranged at the bottom, and the morphological change of the sample in the capillary tube 4 can be timely and quickly judged, so that the accuracy of the sample melting point detection in the experimental process is further improved.
This device can mutually support through the heating block 11 of fixed connection in the cartridge heater 1 and the miniature pump 3 outside the cartridge heater 1, can fully heat the paraffin oil that holds in the cartridge heater 1 and make its temperature evenly distributed, guaranteed the temperature to the real-time feedback heating of capillary 4 even heating and thermometer 22, thereby can accurate effectual detection go out the melting point of the easy decomposition sample in the capillary 4, avoided the potential safety hazard with naked light heating, improved the accuracy that the sample melting point detected.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Easy decomposition sample seals and detects melting point pipe, including cartridge heater (1), its characterized in that still includes: the sealing cover (2) is detachably connected to the heating cylinder (1), a thermometer (22) is fixedly connected to the sealing cover (2), and a capillary tube (4) is detachably connected to the sealing cover (2); a heating block (11) fixedly connected in the heating cylinder (1); the micro water pump (3) is fixedly connected to the heating cylinder (1), the micro water pump (3) is communicated with a water suction pipe (32) and a water drainage pipe (31), and one ends of the water suction pipe (32) and the water drainage pipe (31) far away from the micro water pump (3) are respectively communicated with the upper portion and the lower portion of the heating cylinder (1).
2. The melting point tube for sealing detection of the easily decomposed sample according to claim 1, wherein a threaded cylinder (21) is fixedly connected to the sealing cover (2), and the threaded cylinder (21) is in threaded connection with an opening of the heating cylinder (1).
3. The melting point tube for sealing detection of easily decomposed samples according to claim 2, wherein the sealing cover (2) is provided with a threaded hole (23) therein, and the open end of the capillary tube (4) is screwed into the threaded hole (23).
4. The melting point tube for sealing detection of easily decomposed samples according to claim 1, wherein the heating cylinder (1) is transparent glass.
5. The melting point tube for sealing detection of easily decomposed samples according to claim 4, wherein the heating cylinder (1) is provided with a magnifying observation window (13).
6. The melting point tube for sealing detection of easily decomposed samples according to claim 1, wherein a suction cup (12) is fixedly connected to the bottom of the heating cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221083872.5U CN217304977U (en) | 2022-05-08 | 2022-05-08 | Easily decomposed sample sealing detection melting point tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221083872.5U CN217304977U (en) | 2022-05-08 | 2022-05-08 | Easily decomposed sample sealing detection melting point tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217304977U true CN217304977U (en) | 2022-08-26 |
Family
ID=82916453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221083872.5U Active CN217304977U (en) | 2022-05-08 | 2022-05-08 | Easily decomposed sample sealing detection melting point tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217304977U (en) |
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2022
- 2022-05-08 CN CN202221083872.5U patent/CN217304977U/en active Active
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