Internal circulation distillation device

Abstract

The utility model discloses an internal circulation distillation device which comprises a distillation still, a diaphragm pump, a first electric control valve and a second electric control valve, a heating mechanism is arranged in the distillation still, an inlet of the diaphragm pump is communicated with the distillation still through a first pipeline, an inlet of the first electric control valve is communicated with an outlet of the diaphragm pump through a second pipeline, and the diaphragm pump is communicated with the second electric control valve through a third pipeline. An outlet of the first electric control valve is communicated with the distillation still through a third pipeline, an inlet of the second electric control valve is communicated with an outlet of the diaphragm pump through a fourth pipeline, an outlet of the second electric control valve is communicated with a fifth pipeline, and the first electric control valve and the second electric control valve are electrically connected to a preset controller. And the controller is used for controlling one of the first electric control valve and the second electric control valve to be switched on. The distillation device can improve the distillation efficiency and is convenient for discharging waste liquid.

Description

Technical Field

[0001] This utility model relates to distillation apparatus, and more particularly to an internal circulation distillation apparatus. Background Technology

[0002] In the prior art, waste liquids and other fluid materials can be distilled using a distillation kettle. For existing distillation equipment, please refer to the Chinese patent publication document with announcement number 221106980U entitled "A Vertical Energy-Saving and Environmentally Friendly Evaporation Kettle", which describes: "A vertical energy-saving and environmentally friendly evaporation kettle includes an evaporation kettle shell, an upper end cap, and an outlet. The upper end cap is provided at the top of the evaporation kettle shell, and an outlet is fixed at the top of the upper end cap. A heating shell is fixed to the lower outer side of the evaporation kettle shell, and multiple heating tubes are fixed at equal intervals inside the heating shell. A heat-conducting ring plate is fixed on the outer wall of the evaporation kettle shell inside the heating tubes." This type of distillation kettle only has the basic functions of heating and distillation. As the distillation process continues, the fluidity of the waste liquid deteriorates. At this time, the waste liquid near the bottom is not easily distilled, so the distillation efficiency is low. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an internal circulation distillation device that can improve distillation efficiency and facilitate the discharge of waste liquid, in order to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0005] An internal circulation distillation apparatus includes a distillation vessel, a diaphragm pump, a first electrically controlled valve, and a second electrically controlled valve. The distillation vessel is equipped with a heating mechanism. The inlet of the diaphragm pump is connected to the distillation vessel via a first pipeline. The inlet of the first electrically controlled valve is connected to the outlet of the diaphragm pump via a second pipeline. The outlet of the first electrically controlled valve is connected to the distillation vessel via a third pipeline. The inlet of the second electrically controlled valve is connected to the outlet of the diaphragm pump via a fourth pipeline. The outlet of the second electrically controlled valve is connected to a fifth pipeline. The first and second electrically controlled valves are electrically connected to a preset controller, which controls one of the first and second electrically controlled valves to selectively operate.

[0006] Preferably, the first pipeline is connected to the bottom of the distillation vessel.

[0007] Preferably, the third pipeline is connected to the side of the distillation vessel.

[0008] Preferably, the heating mechanism is located at the bottom of the distillation vessel.

[0009] Preferably, the distillation vessel is provided with an observation window on its side.

[0010] Preferably, the interior of the distillation vessel is equipped with a pressure frame.

[0011] Preferably, the bottom of the distillation vessel has a downwardly protruding hemispherical ridge, and the first pipeline is connected to the center of the hemispherical ridge.

[0012] Preferably, the outer wall of the distillation vessel is fixed with two support arms, one upper and one lower.

[0013] In the internal circulation distillation apparatus disclosed in this utility model, in the internal circulation state, the heating mechanism is used to heat the waste liquid in the distillation vessel. When the diaphragm pump is running, the first solenoid valve is turned on and the second solenoid valve is turned off. The waste liquid in the distillation vessel circulates sequentially along the first pipeline, the diaphragm pump, the first solenoid valve, and the second pipeline. Driven by the diaphragm pump, the waste liquid circulates, effectively improving the distillation efficiency. When it is necessary to discharge the waste liquid, the second solenoid valve can be turned on and the first solenoid valve can be turned off. At this time, the diaphragm pump is used to discharge the waste liquid in the distillation vessel through the fifth pipeline, which better meets the application requirements. Attached Figure Description

[0014] Fig. 1 This is a three-dimensional view of an internal circulation distillation apparatus;

[0015] Fig. 2 This is a top view of an internal circulation distillation apparatus;

[0016] Fig. 3 This is a side view of an internal circulation distillation apparatus. Detailed Implementation

[0017] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.

[0018] This utility model discloses an internal circulation distillation device, combined with Figs. 1 to 3 As shown, it includes a distillation vessel 1, a diaphragm pump 2, a first electrically controlled valve 3, and a second electrically controlled valve 4. The distillation vessel 1 is equipped with a heating mechanism 5. The inlet of the diaphragm pump 2 is connected to the distillation vessel 1 through a first pipeline 6. The inlet of the first electrically controlled valve 3 is connected to the outlet of the diaphragm pump 2 through a second pipeline 7. The outlet of the first electrically controlled valve 3 is connected to the distillation vessel 1 through a third pipeline 8. The inlet of the second electrically controlled valve 4 is connected to the outlet of the diaphragm pump 2 through a fourth pipeline 9. The outlet of the second electrically controlled valve 4 is connected to a fifth pipeline 10. The first electrically controlled valve 3 and the second electrically controlled valve 4 are respectively electrically connected to a preset controller. The controller is used to control the selective conduction of the first electrically controlled valve 3 and the second electrically controlled valve 4.

[0019] In the above structure, under internal circulation, the heating mechanism 5 heats the waste liquid in the distillation vessel 1. When the diaphragm pump 2 is running, the first solenoid valve 3 is turned on while the second solenoid valve 4 is turned off. The waste liquid in the distillation vessel 1 circulates sequentially along the first pipeline 6, the diaphragm pump 2, the first solenoid valve 3, and the second pipeline 7. Driven by the diaphragm pump 2, the waste liquid circulates, effectively improving the distillation efficiency. When it is necessary to discharge the waste liquid, the second solenoid valve 4 is turned on while the first solenoid valve 3 is turned off. At this time, the diaphragm pump 2 discharges the waste liquid in the distillation vessel 1 through the fifth pipeline 10, which better meets the application requirements.

[0020] In this embodiment, please refer to Fig. 1 and Fig. 3 The first pipe 6 is connected to the bottom of the distillation vessel 1. Furthermore, the bottom of the distillation vessel 1 has a downwardly protruding hemispherical ridge 13, and the first pipe 6 is connected to the center of the hemispherical ridge 13.

[0021] In the above structure, because the bottom of the distillation vessel 1 has a hemispherical bulge 13, the waste liquid in the distillation vessel 1 gathers into the hemispherical bulge 13 under the action of gravity, thereby facilitating the diaphragm pump 2 to extract the waste liquid.

[0022] Based on this, the heating mechanism 5 is a disc-shaped heater, which is preferably located inside the distillation vessel 1 near the bottom. Specifically, the heating mechanism 5 is located at the bottom of the distillation vessel 1.

[0023] In practical applications, the waste liquid recycled back to the distillation vessel 1 is preferably injected to a position at a preset height above the bottom of the distillation vessel 1. Specifically, the third pipeline 8 is connected to the side of the distillation vessel 1.

[0024] To facilitate observation of the distillation process inside the vessel, in this embodiment, the distillation vessel 1 is provided with an observation window 11 on its side.

[0025] As a preferred embodiment, the interior of the distillation vessel 1 is provided with a pressure frame 12. The pressure frame 12 can be used to install a pressing mechanism.

[0026] Furthermore, the outer wall of the distillation vessel 1 is fixed with two upper and lower support arms 14. By providing the two upper and lower support arms 14, the distillation vessel 1 can be easily fixed to a pre-set frame.

[0027] The internal circulation distillation device disclosed in this utility model has a concentrated liquid flowing in the system driven by a diaphragm pump during operation. First, the waste liquid enters the distillation kettle and is evaporated and concentrated through the heat transfer system inside the device. After concentration, it is discharged into the evaporation kettle through the diaphragm pump for secondary evaporation and reuse.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An internal-circulation distillation apparatus, characterized by comprising: The device comprises a distillation kettle, a diaphragm pump, a first electric control valve and a second electric control valve, the distillation kettle is internally provided with a heating mechanism, the inlet of the diaphragm pump is communicated with the distillation kettle through a first pipeline, the inlet of the first electric control valve is communicated with the outlet of the diaphragm pump through a second pipeline, the outlet of the first electric control valve is communicated with the distillation kettle through a third pipeline, the inlet of the second electric control valve is communicated with the outlet of the diaphragm pump through a fourth pipeline, the outlet of the second electric control valve is communicated with a fifth pipeline, and the first electric control valve and the second electric control valve are respectively electrically connected to a preset controller, which is used for controlling the first electric control valve and the second electric control valve to be selectively conducted.

2. An internal loop distillation apparatus as claimed in claim 1, wherein, The first pipeline is communicated with the bottom of the distillation kettle.

3. An internal loop distillation apparatus as claimed in claim 1, wherein, The third pipeline is communicated with the side of the distillation kettle.

4. The internal loop still apparatus as claimed in claim 1, wherein, The heating mechanism is arranged at the bottom of the distillation kettle.

5. The internal loop still apparatus as claimed in claim 1, wherein, The side of the distillation kettle is provided with an observation window.

6. The internal loop still apparatus as claimed in claim 1, wherein, The inside of the distillation kettle is provided with a pressing frame.

7. An internal loop distillation apparatus as claimed in claim 2, wherein The bottom of the distillation kettle is formed with a semispherical protruding part, and the first pipeline is communicated with the center of the semispherical protruding part.

8. The internal loop still apparatus as claimed in claim 1, wherein, Two upper and lower supporting arms are fixed to the outer side wall of the distillation kettle.

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