CN210560808U - Temperature-controllable electrolytic cell - Google Patents
Temperature-controllable electrolytic cell Download PDFInfo
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- CN210560808U CN210560808U CN201920814208.5U CN201920814208U CN210560808U CN 210560808 U CN210560808 U CN 210560808U CN 201920814208 U CN201920814208 U CN 201920814208U CN 210560808 U CN210560808 U CN 210560808U
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Abstract
The utility model discloses an electrolysis trough of controllable temperature, include: an outer tank body; an inner liner; an anode and a cathode; a vacuum interlayer sealed between the outer tank body and the inner lining body; an air inlet pipeline and an air inlet valve body; an air exhaust pipeline and an air exhaust end valve body; and the air inlet pipeline and the air exhaust pipeline are both connected to the outer groove body and communicated with the vacuum layer. The technical scheme of the utility model avoid the electrolytic bath groove high temperature or cross the condition low excessively, solved the problem of hot groove and cold bath that the metal lithium electrolysis in-process produced, make the metal lithium electrolysis process stable controllable, improved electrolytic bath current efficiency, reduced metal lithium electrolysis cost.
Description
Technical Field
The utility model relates to an electrolysis technical field especially relates to an equipment for metal lithium electrolysis.
Background
Metallic lithium is a rare element with a density of 0.534g/cm3Being the lightest metal. Melting point 180.54 ℃ and boiling point 1317 ℃.
The only current commercial process for producing lithium metal is to electrolytically melt a mixture of lithium chloride and potassium chloride. The electrolytic cell is a key device for electrolysis, and the structure, technological parameters and the like of the electrolytic cell determine the economic and technical indexes of electrolysis. The electrolytic cell is generally composed of a cell body, an inner lining, a cell cover, an anode and a cathode, and the closed area of the cell body and the inner lining is generally used as an insulating layer. At present, the heat-insulating layer is generally made of materials such as asbestos and the like, and only has a heat-insulating effect but not a temperature control effect. However, since the environmental temperature changes, especially the electrolyte capacity is large or small, and the external environmental temperature affects, the electrolytic cell is easy to generate a hot cell or a cold cell, which affects the current efficiency of the electrolytic cell and increases the energy consumption.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the temperature of the electrolytic cell can not be controlled. The utility model provides an electrolytic cell structure design scheme which has simple structure and can adjust the thermal insulation performance so as to control the temperature of the electrolytic cell.
The purpose of the utility model can be realized by the following technical scheme.
The utility model provides a controllable temperature's electrolysis trough, include:
an outer tank body;
an inner lining body positioned in the outer tank body, wherein the area surrounded by the inner lining body contains electrolyte for electrolysis;
an anode and a cathode, one end of the anode and cathode being located within the inner liner and at least a portion of the anode and cathode being immersed in the electrolyte when electrolysis is performed;
the vacuum interlayer is formed by a space enclosed between the outer tank body and the inner lining body;
the air inlet valve comprises an air inlet pipeline and an air inlet end valve body positioned in the air inlet pipeline;
the air exhaust valve comprises an air exhaust pipeline and an air exhaust end valve body positioned in the air exhaust pipeline; and
an air extracting device connected with the air extracting pipeline,
the air inlet pipeline and the air exhaust pipeline are connected to the outer groove body and communicated with the vacuum interlayer.
Optionally, the air extracting device is a vacuum pump.
Optionally, a temperature sensor is arranged inside the lining body; optionally, the temperature sensor is a thermocouple or a thermal resistor.
Optionally, the air intake valve body and/or the air exhaust valve body is a vacuum flapper valve.
Optionally, a vacuum sensor or a vacuum gauge is disposed in the vacuum interlayer.
Optionally, the vacuum interlayer is in fluid communication as a whole.
Optionally, the electrolytic cell further comprises a control system for controlling the opening and closing or opening of the valve body at the air inlet end and/or the valve body at the air exhaust end.
Optionally, the anode is vertically arranged at the top of the tank body, and the cathode is arranged around the anode.
Optionally, the electrolytic cell is a metallic lithium electrolytic cell.
Optionally, the electrolyte is a mixture of lithium chloride and potassium chloride.
When the electrolytic cell is operated, if the temperature of the electrolytic cell is too high, the air exhaust end valve body on the air exhaust pipeline is closed, and the air inlet end valve body on the air inlet pipeline is opened, so that air enters the vacuum interlayer, the heat insulation effect of the electrolytic cell is reduced, and the heat dissipation of the electrolytic cell is faster; if the temperature of the electrolytic cell is too high, the temperature of the electrolytic cell still cannot be reduced in a short time after the operation, a valve body at the air exhaust end on the air exhaust pipeline can be opened, air in the vacuum interlayer is exhausted by utilizing an air exhaust device (such as a vacuum pump), new air is introduced from the air inlet end again, and partial heat is quickly taken away by utilizing air circulation. When the temperature of the electrolytic cell is low, the air inlet valve body on the air inlet pipeline is closed, and the air exhaust valve body and the air exhaust device are opened, so that the vacuum interlayer keeps high vacuum degree, the heat insulation effect of the vacuum interlayer is improved, and the temperature of the electrolytic cell is slowly increased. When the electrolytic cell normally works, the valve body at the air inlet end, the valve body at the air exhaust end and the air exhaust device are closed, so that the vacuum interlayer maintains the current vacuum degree, and the energy consumption is reduced.
Compared with the prior art, the utility model discloses utilize the vacuum intermediate layer to control the temperature, simple structure, easily operation, investment cost is low, can be according to the high or low regulation heat preservation effect of electrolysis trough temperature to make the electrolysis trough temperature stable, improve electrolysis trough current efficiency, reduce metal lithium manufacturing cost.
Drawings
FIG. 1 is a structural diagram of an embodiment of the temperature-controllable electrolytic cell of the present invention.
Description of the figure numbers:
1 outer tank body 2 vacuum interlayer 3 inner lining body 4 anode
5 cathode 6 air inlet pipeline 7 air inlet end valve body 8 air exhaust end valve body
9-pumping pipeline 10-vacuum pump
Detailed Description
The following describes a specific embodiment of the present invention. It is to be understood that other various embodiments can be devised and modified by those skilled in the art in light of the teachings of this disclosure without departing from the scope or spirit of the invention. The following detailed description is, therefore, not to be taken in a limiting sense.
The utility model provides a controllable temperature's electrolysis trough, include: an outer tank body; an inner lining body, wherein electrolytes such as lithium chloride and potassium chloride can be placed in the area surrounded by the inner lining body for electrolysis; the vacuum interlayer is formed by a space enclosed between the outer tank body and the inner lining body; the anode can be vertically arranged at the top of the tank body; a cathode positionable around the anode; the air inlet pipeline and the air inlet valve body are used for introducing air and reducing the vacuum degree, so that the heat insulation effect is reduced, and the electrolytic bath is cooled to a certain degree; the air exhaust pipeline and the air exhaust end valve body are used for vacuumizing the vacuum interlayer, and the heat insulation effect of the equipment is improved by improving the vacuum degree of the vacuum interlayer, so that the temperature of the electrolytic cell is not too low; and the air exhaust device (such as a vacuum pump) is used for vacuumizing the vacuum interlayer.
The air inlet pipeline and the air exhaust pipeline are both connected to the outer groove body and communicated with the vacuum interlayer; one end of the anode and the cathode are positioned in the lining body, and at least one part of the anode and the cathode are immersed in the electrolyte during normal operation.
In some embodiments, a temperature sensor is disposed inside the liner body, which can monitor the temperature of the electrolyte; optionally, the temperature sensor is a thermocouple or a thermal resistor. The vacuum control system can change the vacuum degree in real time through the monitoring value of the temperature sensor, thereby achieving the function of dynamically controlling the temperature of the electrolytic cell.
In certain embodiments, the intake end valve body and/or the exhaust end valve body is a vacuum flapper valve; preferably, the vacuum baffle valve is pneumatically or electrically controlled, and the control system can control the opening and closing of the valve body or the opening size and the like.
In certain embodiments, a vacuum sensor or a vacuum gauge is disposed in the vacuum interlayer; the control system can be used for monitoring in real time, and when the vacuum degree meets the requirement, the valve body and the air exhaust device can be closed, so that the energy consumption is reduced.
The following describes a specific embodiment of a temperature-controllable metal lithium electrolytic cell according to the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1, a temperature-controllable electrolytic cell comprises:
an outer tank body 1; in this embodiment, the outer tank body 1 includes a shell around the electrolytic tank and a top cover above the shell, and the top cover generally includes a lithium scooping hole and an observation window;
an inner lining 3, in the embodiment, the inner lining 3 and the outer tank body 1 have a gap in the circumferential direction and are sealed; the inner lining body 3 is fixedly connected with the outer tank body in the vertical direction and is sealed; the inner region surrounded by the inner liner 3 is an electrolysis region;
the vacuum interlayer 2 is a gap between the inner lining body 3 and the outer tank body 1 in the circumferential direction, and the gap is the vacuum interlayer 2;
the anode 4 is vertically arranged at the top of the outer tank body 1 and is inserted from the top of the outer tank body 1, one end of the anode 4 is positioned outside the outer tank body 1, and the other end of the anode 4 is positioned in an electrolysis area surrounded by the inner lining body 3;
a cathode 5, in the embodiment, the cathode 5 is arranged around the anode 4, and is led out of the device through the cathode wall for connecting with the anode of an electrolysis power supply;
one end of the air inlet pipeline 6 is connected to the outer tank body 1, and the air inlet pipeline 6 is in an open shape and is communicated with the vacuum interlayer 2; the other end of the air inlet pipeline 6 is provided with an air inlet valve body 7, and one end of the valve body 7 is directly communicated with the atmosphere;
one end of the air exhaust pipeline 9 is communicated with the outer groove body 1 and is communicated with the vacuum interlayer 2; the other end is provided with a valve body 8 at the air exhaust end and is communicated with a vacuum pump 10.
In this embodiment, the electrolysis zone is equipped with a temperature sensor that can monitor the temperature of the electrolyte in the cell in real time.
When preparing to use the electrolytic cell to electrolyze and produce the lithium metal, close the valve 7, the valve 8 is opened, and open the vacuum pump 10, and maintain for 5 minutes, make the vacuum interlayer 2 reach the higher vacuum degree; then the valve body 8 is closed, the vacuum pump 10 is closed, and the vacuum interlayer 2 is kept in a vacuum state. In the process of producing the metal lithium by electrolysis, if the temperature of the electrolyte is too high, the temperature sensor arranged in the electrolysis area sends a temperature over-high signal, the control system can control the valve body 7 to be completely opened or open a small gap, so that a small amount of air enters the vacuum layer 2, the vacuum degree of the vacuum interlayer 2 is reduced, the electrolytic cell has certain heat dissipation capacity, and the temperature in the electrolytic cell is reduced; when the temperature in the electrolytic cell is low, the control system controls the valve body 7 to be closed, the valve body 8 to be opened, the vacuum pump 10 to be opened, and the vacuum interlayer 2 is vacuumized, so that the vacuum degree in the vacuum layer 2 is maintained at a high level, the heat preservation performance of the electrolytic cell is improved, and the temperature in the electrolytic cell is slowly increased.
If the temperature in the electrolytic cell rises rapidly in a short time, and when the operation effect is not ideal, the valve body 7, the valve body 8 and the vacuum pump 10 can be opened, so that the vacuum interlayer 2 is in a non-vacuum state and forms an air flowing state, and the flowing air can take away the heat in the electrolytic cell rapidly, thereby rapidly recovering the temperature of the electrolytic cell to be normal.
Although the present invention has been disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. A temperature-controllable electrolytic cell, comprising:
an outer tank body;
the inner lining body is positioned in the outer tank body, and the area surrounded by the inner lining body contains electrolyte for electrolysis;
an anode and a cathode, one end of the anode and cathode being located within the inner liner and at least a portion of the anode and cathode being immersed in the electrolyte when electrolysis is performed;
the vacuum interlayer is formed by a space enclosed between the outer tank body and the inner lining body;
the air inlet valve comprises an air inlet pipeline and an air inlet end valve body positioned in the air inlet pipeline;
the air exhaust valve comprises an air exhaust pipeline and an air exhaust end valve body positioned in the air exhaust pipeline; and
an air extracting device connected with the air extracting pipeline,
the air inlet pipeline and the air exhaust pipeline are connected to the outer groove body and communicated with the vacuum interlayer.
2. The electrolytic cell of claim 1 wherein the gas extraction means is a vacuum pump.
3. The electrolytic cell of claim 1 wherein the inlet end valve body and/or the exhaust end valve body is a vacuum flapper valve.
4. The electrolytic cell of claim 1 wherein a temperature sensor is disposed within the inner liner.
5. The electrolytic cell of claim 1 wherein a vacuum sensor or gauge is disposed within the vacuum interlayer.
6. The electrolytic cell of claim 1 wherein the vacuum interlayer is in overall fluid communication.
7. The electrolytic cell of claim 1 further comprising a control system for controlling the opening and closing or opening of the inlet valve body and/or the exhaust valve body.
8. The electrolytic cell of claim 1 wherein the anode is vertically disposed at the top of the cell body and the cathode is disposed around the anode.
9. The electrolytic cell of claim 1, wherein the electrolytic cell is a metallic lithium electrolytic cell.
10. The electrolytic cell of claim 9 wherein the electrolyte is a mixture of lithium chloride and potassium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814208.5U CN210560808U (en) | 2019-05-31 | 2019-05-31 | Temperature-controllable electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814208.5U CN210560808U (en) | 2019-05-31 | 2019-05-31 | Temperature-controllable electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210560808U true CN210560808U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920814208.5U Active CN210560808U (en) | 2019-05-31 | 2019-05-31 | Temperature-controllable electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210560808U (en) |
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2019
- 2019-05-31 CN CN201920814208.5U patent/CN210560808U/en active Active
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