Constant volume structure of full-automatic evaporation constant volume instrument capable of adjusting end point concentration volume

Abstract

The utility model provides a constant volume structure of a full-automatic evaporation constant volume instrument capable of adjusting the end point concentration volume, which comprises a casing and is characterized in that an evaporation cylinder is arranged at the upper end in the casing, a heating wall is arranged on the outer side of the evaporation cylinder, a liquid level sensor is vertically arranged in the evaporation cylinder, and the liquid level sensor is connected with the heating wall. A pipeline is arranged below the liquid level sensor and in the middle of the bottom of the evaporation cylinder, the pipeline penetrates through the bottom of the evaporation cylinder and extends to the lower end of the interior of the machine shell, and a throttling valve is arranged in the middle, outside the lower end of the interior of the machine shell, of the pipeline in a sleeving mode. The evaporation cylinder is connected with the constant volume cylinder through a pipeline, a throttling valve is installed in the middle of the pipeline, whether the throttling valve is opened or not is judged through a liquid level sensor in the evaporation cylinder, and therefore evaporation and constant volume integration is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation constant volume instrument equipment, in particular to a constant volume structure of a full-automatic evaporation constant volume instrument with adjustable endpoint concentration volume. Background Art

[0002] In constant volume experiments, most liquids are evaporated using an evaporator. The final determination of the volume requires the intervention of the experimenter or the transfer of the liquid to another instrument. The evaporator cannot automatically determine the target volume. This not only increases the experimenter's energy and the number of experimental steps, but also increases the difficulty of the experiment.

[0003] Therefore, it is necessary to overcome the shortcomings of the existing technology and design a structure that can automatically adjust the final solvent sample volume during the experiment, and the volume of the fixed volume can be set according to the experimental requirements. Utility Model Content

[0004] The purpose of the utility model is to provide a full-automatic evaporation constant volume instrument with an adjustable end-point concentration volume constant volume structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fully automatic evaporation volume meter with an adjustable end-point concentration volume constant volume structure, comprising a casing, characterized in that an evaporation cylinder is provided at the upper end of the casing, a heating wall is provided on the outside of the evaporation cylinder, a liquid level sensor is vertically provided inside the evaporation cylinder, a pipe is provided below the liquid level sensor and in the middle of the bottom of the evaporation cylinder, the pipe passes through the bottom of the evaporation cylinder and extends to the lower end of the casing, and a throttle valve is provided in the middle of the lower end of the casing. A constant volume cylinder is provided at the lower end of the casing, a heating cylinder is provided on the outside of the constant volume cylinder, an insulation layer is provided at the bottom of the heating cylinder, and a weight sensor is installed below the insulation layer.

[0006] Preferably, both sides of the outer wall of the evaporation cylinder are in contact with the heating wall, and a dry-burning heating rod is embedded in the heating wall.

[0007] Preferably, the evaporation cylinder and the constant volume cylinder are connected via a pipe, and the pipe opening is suspended above the constant volume cylinder.

[0008] Preferably, the constant volume cylinder is an independent entity, and is externally covered with a heating cylinder wrapped in aluminum material.

[0009] Preferably, a dry-burning heating rod is embedded in the bottom of the heating cylinder, which can provide continuous and stable heating.

[0010] Preferably, the constant volume structure in the casing is composed of two parts, the upper part is an evaporation cylinder for solvent evaporation, and the lower part is a constant volume cylinder for solvent evaporation, constant volume and measurement.

[0011] Preferably, the weight sensor is located at the bottom of the casing, supporting the thermal insulation layer, the heating cylinder and the constant volume cylinder.

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

[0013] 1. The utility model sets up an independent constant volume cylinder, which is convenient for removal after the experiment. The evaporation cylinder and the constant volume cylinder are connected by a pipeline. A throttle valve is installed in the middle of the pipeline. The liquid level sensor in the evaporation cylinder determines whether the throttle valve is open, thereby realizing the integration of evaporation and constant volume.

[0014] 2. This utility model utilizes a heating wall and a dry-burning heating rod within the heating cylinder to heat the solvent. An insulation layer is installed at the bottom of the heating cylinder to isolate the heat. A gravity sensor is installed beneath the insulation layer. The weight sensor continuously detects the remaining solvent weight within the heating cylinder. The experiment ends when the remaining weight reaches the weight set at the start of the experiment. This allows the constant volume to be customized according to experimental requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the evaporation constant volume instrument of the present utility model.

[0016] The components in the accompanying drawings are marked as follows: 1: housing, 101: dry-burning heating rod, 2: evaporation cylinder, 3: heating wall, 4: liquid level sensor, 5: pipeline, 6: throttle valve, 7: constant volume cylinder, 8: heating cylinder, 9: insulation layer, 10: weight sensor. DETAILED DESCRIPTION

[0017] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those skilled in the art will recognize that terms such as "above," "below," "upwardly," and "downwardly" are used to describe the drawings and are not intended to limit the scope of the present invention as defined by the appended claims. Numerical designations such as "first" and "second" are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0018] The utility model provides Figure 1The illustrated embodiment shows a fully automatic evaporation and volume control instrument with an adjustable endpoint concentration volume constant volume structure: the interior of the casing 1 is divided into an upper and lower part, the upper part of which is provided with an evaporation cylinder 2 for solvent evaporation experiments, heating walls 3 are closely arranged on both sides of the outer wall of the evaporation cylinder 2, and the heating walls 3 are embedded with dry-burning heating rods 101 to continuously heat and evaporate the solvent in the evaporation cylinder 2, a liquid level sensor 4 is vertically arranged inside the evaporation cylinder 2 for observing the residual solvent in the evaporation cylinder 2, a pipe 5 is provided below the liquid level sensor 4 and in the middle of the bottom of the evaporation cylinder 2, the pipe 5 passes through the bottom of the evaporation cylinder 2 and extends to the lower part of the casing 1, and a throttle valve 6 is provided in the middle of the outer part of the lower part of the casing 1, the throttle valve 6 cooperates with the liquid level sensor 4 in the evaporation cylinder 2, when the solvent in the evaporation cylinder 2 reaches the value set by the liquid level sensor 4, the throttle valve 6 opens, and the solvent in the evaporation cylinder 2 flows into the lower half of the casing 1.

[0019] like Figure 1 As shown: a constant volume cylinder 7 is provided in its lower part for the constant volume experiment of evaporating solvent. The constant volume cylinder 7 is located below the pipe 5, and the pipe mouth is suspended above the constant volume cylinder 7, so that when the solvent in the evaporation cylinder 2 meets the experimental requirements, it flows into the constant volume cylinder 7 through the pipe 5 according to gravity. A heating cylinder 8 is provided on the outside of the constant volume cylinder 7, and a dry-burning heating rod 101 is embedded in the bottom of the heating cylinder 8. The heating rod can provide continuous and stable heating of the constant volume cylinder 7. The outside of the heating cylinder 8 is wrapped with aluminum, which can achieve better heat conduction effect, and the constant volume cylinder 7 is an independent individual, so the constant volume cylinder 7 can be taken away after the experiment is completed, so as to facilitate observation of the experimental results. An insulating layer 9 is provided at the bottom of the heating cylinder 8 for isolating heating, and a weight sensor 10 is installed under the insulating layer 9 to facilitate observation and detection of the weight of the solvent in the constant volume cylinder 7, thereby realizing an integrated experimental device for evaporation and constant volume.

[0020] Working principle: When the constant volume experiment begins, first set the weight of the experimental solvent on the weight sensor 10, and then pour the solvent into the evaporating cylinder 2 from the casing 1. The dry-burning heating rod 101 in the heating wall 3 on both sides of the outer wall of the evaporating cylinder 2 continues to heat and evaporate. The liquid level in the cylinder drops to the lowest liquid level set by the liquid level sensor 4, and the throttle valve 6 opens. The remaining solvent flows into the constant volume cylinder 7 through the pipe 5 under the influence of gravity. The dry-burning heating rod 101 in the bottom of the heating cylinder 8 starts heating, and the weight sensor 10 under the insulation layer 9 constantly detects the weight of the solvent in the constant volume cylinder 7. When the remaining weight reaches the weight set at the beginning of the experiment, the weight sensor 10 sends a signal to stop heating, and the experiment ends.

[0021] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A fully automatic evaporation volume control device with an adjustable endpoint concentration volume constant volume structure, comprising a housing (1), characterized in that: An evaporation cylinder (2) is provided at the upper end of the interior of the casing (1), a heating wall (3) is provided on the outside of the evaporation cylinder (2), and a liquid level sensor (4) is vertically provided inside the evaporation cylinder (2). A pipe (5) is provided below the liquid level sensor (4) and in the middle of the bottom of the evaporation cylinder (2). The pipe (5) passes through the bottom of the evaporation cylinder (2) and extends to the lower end of the interior of the casing (1), and a throttle valve (6) is provided in the middle of the outer portion of the lower end of the interior of the casing (1). A constant volume cylinder (7) is provided at the lower end of the interior of the casing (1), and a heating cylinder (8) is provided on the outer portion of the constant volume cylinder (7). A heat insulation layer (9) is provided at the bottom of the heating cylinder (8), and a weight sensor (10) is installed below the heat insulation layer (9).

2. The volume-fixing structure of the fully automatic evaporation volume-fixing instrument with adjustable endpoint concentration volume according to claim 1, characterized in that: Both sides of the outer wall of the evaporation cylinder (2) are in contact with the heating wall (3), and a dry-burning heating rod (101) is embedded in the heating wall (3).

3. The volume-fixing structure of the fully automatic evaporation volume-fixing instrument with adjustable endpoint concentration volume according to claim 1, characterized in that: The evaporation cylinder (2) is connected to the constant volume cylinder (7) via a pipe (5), and the pipe opening is suspended above the constant volume cylinder (7).

4. The volume-fixing structure of the fully automatic evaporation volume-fixing instrument with adjustable endpoint concentration volume according to claim 1, characterized in that: The constant volume cylinder (7) is an independent entity, and is externally provided with a heating cylinder (8) wrapped with aluminum material.

5. The volume-constant structure of the fully automatic evaporation volume-constant instrument with adjustable endpoint concentration volume according to claim 1, characterized in that: A dry-burning heating rod (101) is embedded in the bottom of the heating cylinder (8), which can continuously provide stable heating.

6. The volume-constant structure of the fully automatic evaporation volume-constant instrument with adjustable endpoint concentration volume according to claim 1, characterized in that: The constant volume structure in the housing (1) is composed of two parts, the upper part is an evaporation cylinder (2) for solvent evaporation, and the lower part is a constant volume cylinder (7) for solvent evaporation, constant volume and measurement.

7. The volume-fixing structure of the fully automatic evaporation volume-fixing instrument with adjustable endpoint concentration volume according to claim 1, characterized in that: The weight sensor (10) is located at the bottom of the casing (1) and supports the heat insulation layer (9), the heating cylinder (8) and the constant volume cylinder (7).

Images