Evaporation structure for increasing evaporation area of full-automatic evaporation constant volume instrument

Abstract

The utility model provides an evaporation structure for increasing the evaporation area of a full-automatic evaporation constant volume instrument, which comprises a machine shell and is characterized in that an evaporation cylinder is arranged in the machine shell, a circulating pipe is arranged on one side of the evaporation cylinder, and the circulating pipe penetrates through the evaporation cylinder to be connected with a circulating pump on the outer wall of the machine shell. The liquid level expansion box is arranged and matched with the circulating pump to transfer a solvent from the steam cylinder into the liquid level expansion box, then the solvent falls into the evaporation cylinder through a gap of the liquid level expansion box, a vertical liquid level is formed, the contact area of the solvent and air is increased, the evaporation area is increased, and the evaporation efficiency is improved. And the electric heating sheet is additionally arranged at the bottom of the liquid level expansion box, so that the temperature in the liquid level expansion box is increased while the liquid level of the solvent is increased, the solvent can be evaporated in the liquid level expansion box, and the evaporation efficiency in the evaporation cylinder cannot be reduced due to too low temperature when the solvent falls into the evaporation cylinder from the gap.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporator equipment, in particular to an evaporation structure of a full-automatic evaporation constant volume instrument for increasing the evaporation area. Background Art

[0002] In evaporation experiments, the evaporation area of most evaporators is increased by the liquid surface area in the evaporation container. It can be said that the larger the evaporation container, the larger the evaporation area. In addition, the heat source of the evaporator mainly depends on the heating method of the evaporation container. Its heating method is single, the evaporation efficiency is low, and the evaporation amount is not high, which cannot meet the evaporation requirements of the experimenters.

[0003] Therefore, it is necessary to overcome the shortcomings of the prior art and design an evaporation structure that can increase the evaporation area, increase the heating source, improve the evaporation efficiency, and achieve an increased evaporation amount in the same space. Utility Model Content

[0004] The utility model aims to provide an evaporation structure of a full-automatic evaporation constant volume instrument with an increased evaporation area, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an evaporation structure for increasing the evaporation area of a fully automatic evaporator constant volume instrument, including a casing, characterized in that: an evaporating cylinder is arranged in the casing, a circulation pipe is arranged on one side of the bottom of the evaporating cylinder, the circulation pipe passes through the evaporating cylinder and is connected to a circulation pump on the outer wall of the casing, the other end of the circulation pump is connected to a second circulation pipe and passes through the casing again; a liquid level expansion box is arranged on the top of the evaporating cylinder, one end of the liquid level expansion box is connected to the second circulation pipe, and an electric heating plate is arranged around the bottom of the liquid level expansion box, an exhaust fan is arranged directly above the liquid level expansion box, a heating box is fixedly arranged on the side wall of the casing, and an air intake fan is fixedly installed on the side of the heating box.

[0006] Preferably, the liquid level expansion box is a cylinder with an annular groove formed therein and a center hole provided along the central axis to connect with the second circulation pipe. Gaps are symmetrically provided at both ends of the bottom of the annular groove vertically above the evaporation cylinder.

[0007] Preferably, the electric heating plate is located at the bottom of the annular groove, and a gap is provided on the electric heating plate and is connected to the gap at the bottom of the annular groove.

[0008] Preferably, a dry-burning heating rod is provided in the heating box, which can provide continuous and stable heating.

[0009] Preferably, one end of the circulation pump is connected to the circulation pipe to extract the solvent in the evaporation cylinder, and the other end is connected to the second circulation pipe to input the solvent into the annular groove in the liquid level expansion box.

[0010] Preferably, an air duct is provided on one side of the bottom of the heating box, and the air outlet of the air duct is provided on one side of the evaporation cylinder.

[0011] Preferably, the exhaust fan is provided at the upper end of the casing, and the liquid level expansion box and the evaporation cylinder in the casing are perpendicular to each other.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By providing a liquid level expansion box, the present utility model transfers the solvent from the steam cylinder to the liquid level expansion box through a circulation pump, and then the solvent falls into the evaporation cylinder through the gap of the liquid level expansion box to form a vertical liquid level, increasing the contact area between the solvent and the air, improving the evaporation area, and adding an electric heating sheet at the bottom of the liquid level expansion box. While raising the liquid level of the solvent, the temperature in the liquid level expansion box is also increased, realizing that the solvent can also evaporate in the liquid level expansion box, and the solvent will not reduce the evaporation efficiency in the evaporation cylinder due to too low temperature when falling into the evaporation cylinder from the gap. Therefore, under the same space, the evaporation amount is greatly increased.

[0014] 2. By providing an exhaust fan, the present utility model quickly discharges the steam generated by the evaporation cylinder, preventing the steam from accumulating in the casing and accelerating the flow of the dry hot air.

[0015] 3. By providing an intake fan, the present utility model blows the hot air in the heating box, and the hot air blows towards the periphery of the evaporation cylinder through the air duct, improving the air dryness around the evaporation cylinder, accelerating evaporation, and improving the evaporation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the evaporation constant volume instrument of the present utility model.

[0017] Figure 2 is a schematic three-dimensional structure diagram of the liquid level expansion box of the present utility model.

[0018] Figure 3 is a schematic cross-sectional structure diagram of the liquid level expansion box of the present utility model.

[0019] The marks of each component in the drawings are as follows: 1: casing, 2: evaporation cylinder, 3: circulation pipe, 301: second circulation pipe, 4: circulation pump, 5: liquid level expansion box, 501: annular groove, 502: center hole, 6: electric heating sheet, 7: intake fan, 8: heating box, 801: dry-burning heating rod, 802: air duct, 9: exhaust fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Although the present utility model may be described with respect to a specific application or industry, those skilled in the art will recognize a broader applicability of the present utility model. Those of ordinary skill in the art will recognize that terms such as "above", "below", "upward", "downward", etc. are used to describe the drawings and do not represent a limitation on the scope of the present utility model as defined by the appended claims. Any numerical labels such as "first" or "second" are merely illustrative and are not intended to limit the scope of the present utility model in any way.

[0021] The present utility model provides an evaporation structure for increasing the evaporation area of a fully automatic evaporation constant volume instrument as shown in Figure 1 : A evaporation cylinder 2 is arranged inside the machine shell 1. One side of the bottom of the evaporation cylinder 2 is provided with a circulation pipe 3. The circulation pipe 3 penetrates through the evaporation cylinder 2 and is connected to a circulation pump 4 on the outer wall of the machine shell 1, facilitating the transfer of the solvent in the evaporation cylinder 2 into the circulation pump through the circulation pipe 3. The other end of the circulation pump 4 is connected to a second circulation pipe 301 that penetrates into the machine shell 1 and is connected to a liquid level expansion box 5 at the top of the evaporation cylinder 2. Thus, the solvent in the circulation pump 4 can be transferred into the liquid level expansion box 5. An exhaust fan 9 is fixedly arranged directly above the liquid level expansion box 5, which is used to quickly discharge the hot steam generated during the evaporation of the evaporation cylinder 2 through the exhaust fan 9, preventing the formation of air accumulation of the hot steam inside the machine shell 1. Thereby, it also accelerates the flow of the dry hot air and improves the evaporation efficiency. A heating box 8 is fixedly arranged on the side wall of the machine shell 1, and a dry-burning heating rod 801 is arranged inside the heating box 8, which is used for continuous heating to improve the evaporation efficiency.

[0022] As shown in Figure 2 : The liquid level expansion box 5 is a cylinder, which is provided with an annular groove 501 for storing the solvent. A central hole 502 is arranged along the central axis and is connected to the second circulation pipe 3 for transferring the solvent into the annular groove 501. A gap is arranged vertically above the evaporation cylinder 2 at the bottom of the annular groove 501. When the solvent flows into the annular groove 501, it falls into the evaporation cylinder 2 through the gap, forming a vertical liquid level, increasing the contact area between the solvent and the air, and improving the evaporation area.

[0023] As shown in Figure 3 : An electric heating sheet 6 is arranged at the bottom of the annular groove 501, and there is a gap on the electric heating sheet 6 that is connected to the gap at the bottom of the annular groove 501. Under the action of the electric heating sheet 6, the temperature of the solvent in the annular groove 501 is increased. Thus, the solvent can also evaporate in the annular groove 501. Therefore, when the vertical liquid level falls into the evaporation cylinder 2, the temperature will not be too low to reduce the evaporation efficiency of the evaporation cylinder 2.

[0024] As shown in Figure 1As shown in the figure: An intake fan 7 is fixedly installed on the side of the heating box 8 to accelerate the blowing of the dry-burning heating rod 801. A duct 802 is provided on one side of the bottom of the heating box 8, and the air outlet of the duct 802 is arranged on one side of the evaporation cylinder 2. Under the blowing of the intake fan 7, the hot air generated by the dry-burning heating rod 801 is transmitted to the periphery of the evaporation cylinder 2 through the duct 802, heating the air around the evaporation cylinder 2, increasing the dryness of the air, accelerating evaporation, and improving the evaporation efficiency.

[0025] Working principle: When the evaporation experiment of the evaporator starts, first pour the solvent into the evaporation cylinder 2. The solvent is transferred from the evaporation cylinder 2 to the liquid level expansion box 5 through the circulation pump 4, and then falls into the evaporation cylinder 2 from the gap of the liquid level expansion box 5 to form a vertical liquid level, increasing the contact area between the solvent and the air, increasing the evaporation area. An electric heating sheet 6 is added at the bottom of the liquid level expansion box 5 to increase the temperature of the solvent when it is in the liquid level expansion box 5, so that evaporation can also occur in the liquid level expansion box 5. Similarly, when the solvent falls from the gap into the evaporation cylinder 2, the temperature will not be too low to reduce the evaporation efficiency in the evaporation cylinder 2. Turn on the intake fan 7 to blow towards the dry-burning heating rod 801 in the heating box 8. The hot air generated by the dry-burning heating rod 801 passes through the duct 802 in the heating box 8 and transfers the hot air to the periphery of the evaporation cylinder 2. By blowing hot air, the air inside the evaporation cylinder 2 is heated, increasing the dryness of the air and accelerating evaporation. Then turn on the exhaust fan 9, and the hot steam generated by the evaporation cylinder 2 is quickly discharged through the exhaust fan 9, preventing air accumulation in the casing 1 by the hot steam, thereby also accelerating the flow of dry air and improving the evaporation efficiency until the solvent evaporates to the required value for the experiment, and the experiment ends.

[0026] The above embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, improvements and substitutions can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An evaporation structure for increasing the evaporation area of a fully automatic evaporation volume-fixing instrument, including a machine shell (1), characterized in that: Inside the casing (1), there is an evaporation cylinder (2). On one side of the bottom of the evaporation cylinder (2), there is a circulation pipe (3). The circulation pipe (3) penetrates through the evaporation cylinder (2) and is connected to a circulation pump (4) on the outer wall of the casing (1). The other end of the circulation pump (4) is connected to a second circulation pipe (301) which re-penetrates into the casing (1). At the top of the evaporation cylinder (2), there is a liquid level expansion box (5). One end of the liquid level expansion box (5) is connected to the second circulation pipe (301). And a heating element (6) is arranged in a circle at the bottom of the liquid level expansion box (5). There is an exhaust fan (9) directly above the liquid level expansion box (5). On the side wall of the casing (1), there is a heating box (8) fixedly arranged. An intake fan (7) is fixedly installed on the side of the heating box (8).

2. The evaporation structure for increasing the evaporation area of the fully automatic evaporation volume-fixing instrument according to claim 1, characterized in that: The liquid level expansion box (5) is a cylinder. It has an annular groove (501) and a central hole (502) is arranged along the central axis to connect to the second circulation pipe (301). At both symmetric ends of the bottom of the annular groove (501), there are gaps perpendicular to the airspace above the evaporation cylinder (2).

3. The evaporation structure for increasing the evaporation area of the fully automatic evaporation and constant volume instrument according to claim 1 or 2, characterized in that: The heating element (6) is located at the bottom of the annular groove (501), and there are gaps on the heating element (6) that are in communication with the gaps at the bottom of the annular groove (501).

4. The evaporation structure for increasing the evaporation area of the fully automatic evaporation volume fixing instrument according to claim 1, characterized in that: Inside the heating box (8), there are multiple dry-burning heating rods (801) arranged vertically, which can continuously provide stable heating.

5. The evaporation structure for increasing the evaporation area of the fully automatic evaporation and constant volume instrument according to claim 1, characterized in that: One end of the circulation pump (4) is connected to the circulation pipe (3) to pump out the solvent in the evaporation cylinder (2), and then through the other end connected to the second circulation pipe (301), the solvent is transported into the annular groove (501) inside the liquid level expansion box (5).

6. The evaporation structure for increasing the evaporation area of the fully automatic evaporation and constant volume instrument according to claim 1, characterized in that: On one side of the bottom of the heating box (8), there is an air duct (802). The air outlet of the air duct (802) is arranged on one side of the evaporation cylinder (2).

7. The evaporation structure for increasing the evaporation area of a fully automatic evaporation volume constant instrument according to claim 1, wherein: The exhaust fan (9) is arranged at the upper end of the casing (1), and the liquid level expansion box (5) and the evaporation cylinder (2) inside the casing (1) are perpendicular to each other.

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