Ethylene carbonate storage heating can device

Abstract

The utility model relates to a kind of ethylene carbonate storage heating canning devices.The technical scheme is: the upper portion of the jacket of ethylene carbonate reaction tower is connected to heat storage tank by heat extraction pipeline, the bottom is connected to the lower portion of jacket by return pipeline;Lower end is connected to rectifying column by pipeline, the top of rectifying column is connected to buffer tank by condenser, the lower end of buffer tank is connected to ethylene carbonate storage tank by pipeline, the outer wall of ethylene carbonate storage tank is equipped with interlayer, the bottom of heat storage tank is connected to the lower side of interlayer by first infusion pump, the upper side of interlayer is connected to the top of heat storage tank by reflux pipeline, the lower end of ethylene carbonate storage tank is connected to dustless filling box by second infusion pump, filling head is provided in dustless filling box.Affirmative effect is: when needing to fill, utilize the reaction heat energy of itself, reduce energy consumption, also facilitate the filling of ethylene carbonate, and filling in dustless filling box meets higher purity requirement.

Description

Technical Field

[0001] This utility model relates to the field of ethylene carbonate storage technology, and in particular to a heating and filling device for storing ethylene carbonate. Background Technology

[0002] As a crucial component of lithium-ion battery electrolytes, the high-purity filling of ethylene carbonate directly impacts battery performance. Furthermore, ethylene carbonate, a highly polar organic solvent (boiling point approximately 165°C), is characterized by low volatility but is susceptible to crystallization due to temperature variations. Because ethylene carbonate is crystalline at room temperature, the ethylene carbonate storage tank needs to be heated during filling to maintain a temperature above 35°C. However, existing ethylene carbonate storage tanks require hot water for insulation, resulting in high energy consumption and increased costs. Additionally, since the ethylene carbonate production process is exothermic, the reaction tower needs to be cooled, failing to fully utilize its heat. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned deficiencies in the existing technology by providing a heating and filling device for storing ethylene carbonate. This device fully utilizes the heat generated during the reaction of ethylene carbonate and delivers the heat to the insulation jacket of the ethylene carbonate storage tank. This allows the ethylene carbonate to be maintained at a temperature above 35 degrees Celsius during loading and filling, keeping it in a liquid state that facilitates filling.

[0004] This utility model discloses a heating and filling device for storing ethylene carbonate. The technical solution includes an ethylene carbonate reaction tower (T1), a distillation tower (T2), a heat exchange tank (V101), an ethylene carbonate storage tank (V102), a buffer tank (V103), a dust-free filling box (D201), a condenser (E201), a first infusion pump (P1), and a second infusion pump (P2). The upper part of the jacket of the ethylene carbonate reaction tower (T1) is connected to the upper side of the heat exchange tank (V101) via a heat exchange pipeline. The bottom of the heat exchange tank (V101) is connected to the lower part of the jacket of the ethylene carbonate reaction tower (T1) via a return pipeline. The lower end of the ethylene carbonate reaction tower (T1) is connected to the distillation tower (T2) via a pipeline. The top of the distillation tower (T2) is connected to the cooling tank via a pipeline. The condenser (E201) is connected to the buffer tank (V103). The lower end of the buffer tank (V103) is connected to the ethylene carbonate storage tank (V102) via a pipeline. The outer wall of the ethylene carbonate storage tank (V102) is provided with a jacket (V3). The bottom of the heat extraction tank (V101) is connected to the lower side of the jacket (V3) of the ethylene carbonate storage tank (V102) via a pipeline and a first infusion pump (P1). The upper side of the jacket (V3) is connected to the top of the heat extraction tank (V101) via a return pipeline. The lower end of the ethylene carbonate storage tank (V102) is connected to the dust-free filling box (D201) via a pipeline and a second infusion pump (P2). A filling head (D1) is provided inside the dust-free filling box (D201). The filling is filled into the filling bucket (D2) through the filling head (D1).

[0005] Preferably, the pipeline at the outlet end of the first infusion pump (P1) is divided into two lines: one line is connected to the jacket (V3) of the ethylene carbonate storage tank (V102), and the other line is connected to the tube inlet of the heat exchanger (E101).

[0006] Preferably, the tube-side outlet of the heat exchanger (E101) is connected via a pipeline to the return pipeline at the top of the heat storage tank (V101).

[0007] Preferably, a stirring motor (V1) is installed on the top of the ethylene carbonate storage tank (V102), and a stirrer (V2) is installed in the inner cavity of the ethylene carbonate storage tank (V102). The output end of the stirring motor (V1) is connected to the stirrer (V2).

[0008] Preferably, the top of the cleanroom filling box (D201) is equipped with an air inlet (D3) and an air outlet (D5), a dustproof net is installed at the air inlet (D3), and a box door (D4) is installed on the side of the cleanroom filling box (D201).

[0009] Preferably, the outer wall of the aforementioned dust-free filling box (D201) is provided with an insulation layer.

[0010] Preferably, the lower end of the ethylene carbonate reaction tower (T1) is connected to the side line of the distillation tower (T2) via a pipeline and a third pump (P3), and the lower end of the buffer tank (V103) is connected to the side line of the ethylene carbonate storage tank (V102) via a pipeline and a fourth pump (P4).

[0011] The beneficial effects of this invention are as follows: When filling is required, the heating process of the outer wall of the ethylene carbonate storage tank is initiated. Since the ethylene carbonate reaction tower is exothermic during the reaction, a large amount of heat energy is generated and sent to the heat-extracting storage tank through the heat-extracting pipeline connected to the jacket of the outer wall, achieving continuous heat extraction. By connecting the heated hot water to the jacket of the outer wall of the ethylene carbonate storage tank, and combining it with the stirring motor driving the stirrer, the temperature can be quickly raised, and the exothermic energy can be utilized, reducing energy consumption and facilitating the filling of ethylene carbonate. In addition, since the high purity of ethylene carbonate filling directly affects battery performance, the filling operation is completed in a dust-free filling box, which better meets the high purity requirements of ethylene carbonate. Attached Figure Description

[0012] Figure 1 This is a connection diagram of Embodiment 1 of this utility model; Figure 2 This is a connection diagram of Embodiment 2 of this utility model; In the diagram above: Ethylene carbonate reaction tower T1, heat extraction tank V101, ethylene carbonate storage tank V102, heat exchanger E101, dust-free filling box D201, first infusion pump P1, second infusion pump P2, distillation tower T2, condenser E201, buffer tank V103, third infusion pump P3, fourth infusion pump P4, stirring motor V1, stirrer V2, jacket V3, filling head D1, filling barrel D2, air inlet D3, box door D4, air outlet D5. Detailed Implementation

[0013] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0014] Example 1, referring to Figure 1This utility model discloses a heating and filling device for storing ethylene carbonate, comprising an ethylene carbonate reaction tower T1, a distillation tower T2, a heat exchange storage tank V101, an ethylene carbonate storage tank V102, a buffer tank V103, a dust-free filling box D201, a condenser E201, a first delivery pump P1, and a second delivery pump P2. The upper part of the jacket of the ethylene carbonate reaction tower T1 is connected to the upper side of the heat exchange storage tank V101 via a heat exchange pipeline, and the bottom of the heat exchange storage tank V101 is connected to the lower part of the jacket of the ethylene carbonate reaction tower T1 via a return pipeline. The lower end of the ethylene carbonate reaction tower T1 is connected to the distillation tower T2 via a pipeline, and the top of the distillation tower T2 is connected to the cooling tank via a pipeline. Condenser E201 is connected to buffer tank V103. The lower end of buffer tank V103 is connected to ethylene carbonate storage tank V102 via a pipeline. The outer wall of ethylene carbonate storage tank V102 is provided with a jacket V3. The bottom of heat extraction tank V101 is connected to the lower side of jacket V3 of ethylene carbonate storage tank V102 via a pipeline and a first infusion pump P1. The upper side of jacket V3 is connected to the top of heat extraction tank V101 via a return pipeline. The lower end of ethylene carbonate storage tank V102 is connected to cleanroom filling box D201 via a pipeline and a second infusion pump P2. A filling head D1 is provided inside cleanroom filling box D201. Filling is done through filling head D1 into filling bucket D2.

[0015] The outlet pipeline of the first infusion pump P1 is divided into two lines: one line is connected to the jacket V3 of the ethylene carbonate storage tank V102, and the other line is connected to the tube inlet of the heat exchanger E101.

[0016] The tube-side outlet of the aforementioned heat exchanger E101 is connected to the return pipeline at the top of the heat storage tank V101 via a pipeline.

[0017] A stirring motor V1 is installed on the top of the ethylene carbonate storage tank V102, and a stirrer V2 is installed inside the ethylene carbonate storage tank V102. The output end of the stirring motor V1 is connected to the stirrer V2.

[0018] The top of the cleanroom filling box D201 is equipped with an air inlet D3 and an air outlet D5. A dustproof net is installed at the air inlet D3, and a box door D4 is installed on the side of the cleanroom filling box D201.

[0019] The outer wall of the aforementioned dust-free filling box D201 is equipped with an insulation layer.

[0020] The lower end of the ethylene carbonate reaction tower T1 is connected to the side line of the distillation tower T2 via a pipeline and the third pump P3, and the lower end of the buffer tank V103 is connected to the side line of the ethylene carbonate storage tank V102 via a pipeline and the fourth pump P4.

[0021] When using this utility model, The ethylene carbonate mixture generated in the ethylene carbonate reaction tower T1 is sent to the distillation tower T2 for rectification via the third pump P3 and pipeline. The vapor phase is cooled by the condenser E201 via the top pipeline and becomes liquid, then sent to the buffer tank V103. The ethylene carbonate in the buffer tank V103 is connected via a pipeline and the fourth pump P4 to the side line of the ethylene carbonate storage tank V102 for further rectification, and another pipeline is sent to the distant ethylene carbonate storage tank V102. After prolonged storage, the temperature of the ethylene carbonate storage tank V102 drops, causing partial crystallization of the ethylene carbonate, which makes filling difficult. Therefore, the heating process of the outer wall of the ethylene carbonate storage tank V102 is initiated. Due to the reaction of ethylene carbonate... The reaction in tower T1 is exothermic, and the large amount of heat generated is sent to the heat extraction storage tank V101 through the heat extraction pipeline connected to the jacket of the outer wall, so as to achieve continuous heat extraction. By connecting the heated hot water to the jacket V3 of the outer wall of the ethylene carbonate storage tank V102, and combining it with the stirring motor driving the stirrer, the temperature can be quickly raised and maintained above 35 degrees Celsius, which is beneficial to the filling operation. Moreover, it can be achieved by using its own exothermic energy, which reduces energy consumption and facilitates the filling of ethylene carbonate. In addition, since the high purity of ethylene carbonate filling directly affects the battery performance, the filling operation is carried out in the dust-free filling box D201, which better meets the high purity requirements of ethylene carbonate.

[0022] Example 2: A heating and filling device for storing ethylene carbonate, as mentioned in this utility model, includes an ethylene carbonate reaction tower T1, a distillation tower T2, a heat exchange storage tank V101, an ethylene carbonate storage tank V102, a buffer tank V103, a dust-free filling box D201, a condenser E201, a first delivery pump P1, and a second delivery pump P2. The upper part of the jacket of the ethylene carbonate reaction tower T1 is connected to the upper side of the heat exchange storage tank V101 via a heat exchange pipeline, and the bottom of the heat exchange storage tank V101 is connected to the lower part of the jacket of the ethylene carbonate reaction tower T1 via a return pipeline. The lower end of the ethylene carbonate reaction tower T1 is connected to the distillation tower T2 via a pipeline, and the top of the distillation tower T2 is connected via a pipeline. The condenser E201 is connected to the buffer tank V103. The lower end of the buffer tank V103 is connected to the ethylene carbonate storage tank V102 via a pipeline. The outer wall of the ethylene carbonate storage tank V102 is provided with a jacket V3. The bottom of the heat extraction tank V101 is connected to the lower side of the jacket V3 of the ethylene carbonate storage tank V102 via a pipeline and the first infusion pump P1. The upper side of the jacket V3 is connected to the top of the heat extraction tank V101 via a return pipeline. The lower end of the ethylene carbonate storage tank V102 is connected to the dust-free filling box D201 via a pipeline and the second infusion pump P2. The dust-free filling box D201 is provided with a filling head D1, which is used to fill the filling bucket D2.

[0023] The difference from Example 1 is: Reference Figure 2 In this embodiment, the outlet pipeline of the first infusion pump P1 is divided into two lines. One line is connected to the jacket V3 of the ethylene carbonate storage tank V102, and the other line is connected to the tube inlet of the heat exchanger E101.

[0024] The above solution solves the problem that during normal storage, it is not necessary to continuously heat the ethylene carbonate storage tank V102. The heat from the heat extraction tank V101 can be continuously sent to the heat exchanger E101 and then used for other heat needs in the workshop, thereby reducing energy consumption in the production process and saving costs.

[0025] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A heating and filling device for storing ethylene carbonate, characterized in that: The system includes an ethylene carbonate reaction tower (T1), a distillation tower (T2), a heat exchange tank (V101), an ethylene carbonate storage tank (V102), a buffer tank (V103), a cleanroom filling box (D201), a condenser (E201), a first infusion pump (P1), and a second infusion pump (P2). The upper part of the jacket of the ethylene carbonate reaction tower (T1) is connected to the upper side of the heat exchange tank (V101) via a heat exchange pipeline, and the bottom of the heat exchange tank (V101) is connected to the lower part of the jacket of the ethylene carbonate reaction tower (T1) via a return pipeline. The lower end of the ethylene carbonate reaction tower (T1) is connected to the distillation tower (T2) via a pipeline, and the top of the distillation tower (T2) is connected to the buffer tank (V103) via a pipeline and the condenser (E201). The lower end of the buffer tank (V103) is connected to the ethylene carbonate storage tank (V102) via a pipeline. The outer wall of the ethylene carbonate storage tank (V102) is provided with a jacket (V3). The bottom of the heat extraction tank (V101) is connected to the lower side of the jacket (V3) of the ethylene carbonate storage tank (V102) via a pipeline and a first infusion pump (P1). The upper side of the jacket (V3) is connected to the top of the heat extraction tank (V101) via a return pipeline. The lower end of the ethylene carbonate storage tank (V102) is connected to the dust-free filling box (D201) via a pipeline and a second infusion pump (P2). A filling head (D1) is provided inside the dust-free filling box (D201), and the filling is filled into the filling barrel (D2) through the filling head (D1).

2. The ethylene carbonate storage heating and filling device according to claim 1, characterized in that: The outlet pipeline of the first infusion pump (P1) is divided into two lines. One line is connected to the jacket (V3) of the ethylene carbonate storage tank (V102), and the other line is connected to the tube inlet of the heat exchanger (E101).

3. The ethylene carbonate storage heating and filling device according to claim 2, characterized in that: The tube-side outlet of the heat exchanger (E101) is connected via a pipeline to the return pipeline at the top of the heat storage tank (V101).

4. The ethylene carbonate storage heating and filling device according to claim 3, characterized in that: A stirring motor (V1) is installed on the top of the ethylene carbonate storage tank (V102), and a stirrer (V2) is installed inside the ethylene carbonate storage tank (V102). The output end of the stirring motor (V1) is connected to the stirrer (V2).

5. The ethylene carbonate storage heating and filling device according to claim 1, characterized in that: The cleanroom filling box (D201) is equipped with an air inlet (D3) and an air outlet (D5) on its top. A dustproof net is installed at the air inlet (D3), and a box door (D4) is installed on the side of the cleanroom filling box (D201).

6. The ethylene carbonate storage heating and filling device according to claim 5, characterized in that: The outer wall of the dust-free filling box (D201) is provided with an insulation layer.

7. The ethylene carbonate storage heating and filling device according to claim 1, characterized in that: The lower end of the ethylene carbonate reaction tower (T1) is connected to the side line of the distillation tower (T2) via a pipeline and a third delivery pump (P3), and the lower end of the buffer tank (V103) is connected to the side line of the ethylene carbonate storage tank (V102) via a pipeline and a fourth delivery pump (P4).

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