CN111237509A

CN111237509A - Electrolyte unloading balance air pressure device

Info

Publication number: CN111237509A
Application number: CN202010058137.8A
Authority: CN
Inventors: 王海龙
Original assignee: Datong Xincheng New Material Co Ltd
Current assignee: Datong Xincheng New Material Co Ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-06-05

Abstract

The invention belongs to the technical field of air pressure balance, and particularly relates to an electrolyte unloading air pressure balancing device which comprises an emptying valve, an anti-suck-back device, a hose, a nitrogen tank, a regulating valve, an air pressure meter and a DCS controller. The device can avoid air mixing into the jar when electrolyte is unloaded, and can simple efficient play the balanced effect to jar internal gas pressure, and the device can wide application in the balanced atmospheric pressure occasion when all kinds of electrolyte are unloaded.

Description

Electrolyte unloading balance air pressure device

Technical Field

The invention belongs to the technical field of air pressure balance, and particularly relates to an electrolyte unloading air pressure balancing device.

Background

In the last four to five years, the permeability of the whole new energy automobile industry is rapidly improved under the vigorous promotion of the country, and the continuous high-popularity of the industry is maintained. The power lithium ion battery is an important device of a new energy automobile, and the main constituent materials of the lithium ion battery comprise electrolyte, isolating materials, anode and cathode materials and the like. The electrolyte is an important component of the power battery and occupies about 12% of the whole cost.

The electrolyte of lithium battery is a carrier for ion transmission in battery, and generally comprises high-purity organic solvent, electrolyte lithium salt, relevant additives and other raw materials. The common electrolyte mainly comprises lithium perchlorate, lithium hexafluorophosphate, lithium tetrafluoroborate and the like, and the necessary additives mainly comprise high temperature resistant and overcharge and overdischarge resistant additives, film forming additives, conductive additives and the like. The solution is usually selected from methyl ester, propyl ester, etc. The electrolyte with better performance should have higher ionic conductivity, electrochemical stability and thermal stability, and meanwhile, the electrolyte with higher safety can be biodegraded.

At present in the transportation of electrolyte, when electrolyte was unloaded, the atmospheric valve need be opened so that make the solvent inflow in the tank wagon bury big jar, but the air in jar is brought into through the atmospheric valve to the inevitable meeting in this process, brings moisture in making the solvent, is unfavorable for subsequent processing production.

Therefore, there is a need to improve upon the above problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides an electrolyte unloading air pressure balancing device which can solve the problem that air is mixed in the existing electrolyte unloading process due to air pressure balancing.

The technical scheme adopted by the invention is as follows:

the utility model provides an electrolyte balance air pressure unit that unloads, includes atmospheric valve, prevents suck-back device, hose, nitrogen gas jar, governing valve, barometer and DCS controller, be connected with the hose on the atmospheric valve, the suck-back device is prevented in the junction of atmospheric valve and hose installation, the other end and the nitrogen gas jar of hose are connected, the governing valve is installed with nitrogen gas jar junction to the hose, the barometer is installed at the hose middle part, the DCS controller passes through the line connection with barometer and governing valve respectively.

The anti-suck-back device comprises a circular fixing piece and a clamping piece, wherein the fixing piece is fixed on the inner side of the hose shell, and the clamping piece is fixed on the fixing piece.

The clamping piece is made of elastic materials.

And the DCS controller is also provided with an interlock with a main circuit part between the air pressure meter and the regulating valve.

An emergency opening valve is arranged at one end, close to the emptying valve, of the hose.

The nitrogen tank is placed on a movable support.

The movable support comprises a support body and universal wheels.

The barometer is connected with an alarm device.

The DCS controller and the interlocking and alarming device are fixed on the movable support.

Compared with the prior art, the invention has the following beneficial effects:

1. the anti-suck-back device is additionally arranged at the interface of the emptying valve and the hose, so that the liquid suck-back is simply and effectively avoided.

2. According to the invention, the alarm device is connected to the barometer, and the emergency opening valve is arranged on the hose, so that normal unloading under the condition of an emergency special fault can be ensured.

3. The invention adopts a DCS control system to automatically control the whole air pressure adjusting process, thereby saving manpower and material resources and improving the efficiency and the safety.

4. According to the invention, the nitrogen tank is arranged on the movable support, so that the device is movable and flexible to operate and can adapt to different environments.

In conclusion, the whole device is additionally arranged on the emptying valve, so that air is effectively prevented from being mixed during liquid unloading, and the air pressure is more intelligently, conveniently, quickly, efficiently and safely adjusted.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of an anti-suck back device according to the present invention;

wherein: the device comprises an emptying valve 1, an anti-suck-back device 2, a hose 3, a nitrogen tank 4, a regulating valve 5, a barometer 6, a DCS controller 7, an interlocking device 8, an emergency opening valve 9, an alarm device 10, a movable support 11, a fixing part 21, a clamping part 22, a frame body 111 and universal wheels 112.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, fig. 2, a balanced atmospheric pressure device of electrolyte unloading, including atmospheric valve 1, prevent suck-back device 2, hose 3, nitrogen gas jar 4, governing valve 5, barometer 6 and DCS controller 7, be connected with hose 3 on the atmospheric valve 1, atmospheric valve 1 installs with the junction of hose 3 and prevents suck-back device 2, prevents liquid suck-back under the special circumstances, the other end and the nitrogen gas jar 4 of hose 3 are connected, governing valve 5 is installed with nitrogen gas jar 4 junction to hose 3 for adjust the size according to atmospheric pressure, barometer 6 installs middle part in hose 3, measures atmospheric pressure at any time, DCS controller 7 passes through line connection with barometer 6 and governing valve 5 respectively, carries out central control.

The anti-suck-back device 2 comprises a circular fixing piece 21 and a clamping piece 22, wherein the fixing piece 21 is fixed on the inner side of the shell of the hose 3, the clamping piece 22 is fixed on the fixing piece 21, and the anti-suck-back device 2 adopts an air box principle.

The clamping piece 22 is made of elastic materials, and air can only pass through in one direction.

An interlock 8 is also arranged on the part of the total circuit between the DCS controller 7 and the air pressure meter 6 and the regulating valve 5.

And an emergency opening valve 9 is arranged at one end of the hose 3 close to the emptying valve 1 and is used for opening in emergency.

The nitrogen tank 4 is placed on the movable support 11 and can be moved at any time.

The movable bracket 11 includes a frame body 111 and a universal wheel 112.

The barometer 6 is connected to an alarm device 10 for alarming in case of emergency.

The DCS controller 7, the interlocking 8 and the alarm device 10 are fixed on a movable support 11.

The device is additionally arranged near an electrolyte solvent tank car, when the solvent is unloaded, a hose 3 part of the device is connected to an emptying valve 1 of the tank car, a DCS controller 7 is started, the opening size of a regulating valve 5 is controlled through DCS analysis according to the numerical value of a barometer 6, the opening size of the regulating valve 5 controls the size of nitrogen pressure compensation, the suck-back prevention device 2 adopts the bellows principle, a clamping piece 22 can only bend towards the interior of the electrolyte tank, when a fault or other emergency occurs, the fluctuation range of the pressure value exceeds a set value, an alarm device 10 gives an alarm, the emergency opening valve 9 can be manually opened to manually balance the air pressure, the air pressure reaches dynamic balance in the solvent unloading process, the safe and smooth unloading of the electrolyte solvent is ensured, and the air mixing is avoided.

Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.

Claims

1. The utility model provides an electrolyte balance air pressure device that unloads which characterized in that: including atmospheric valve (1), prevent suck-back device (2), hose (3), nitrogen gas jar (4), governing valve (5), barometer (6) and DCS controller (7), be connected with hose (3) on atmospheric valve (1), suck-back device (2) are prevented in the junction of atmospheric valve (1) and hose (3) installation, the other end and nitrogen gas jar (4) of hose (3) are connected, governing valve (5) are installed with nitrogen gas jar (4) junction in hose (3), install at hose (3) middle part in barometer (6), DCS controller (7) pass through the line connection with barometer (6) and governing valve (5) respectively.

2. The electrolyte solution unloading balancing air pressure device according to claim 1, characterized in that: the anti-suck-back device (2) comprises a circular fixing piece (21) and a clamping piece (22), wherein the fixing piece (21) is fixed on the inner side of the shell of the hose (3), and the clamping piece (22) is fixed on the fixing piece (21).

3. The electrolyte solution unloading balancing air pressure device according to claim 2, characterized in that: the clamping piece (22) is made of elastic materials.

4. The electrolyte solution unloading balancing air pressure device according to claim 1, characterized in that: and an interlock (8) is also arranged on the main circuit part between the DCS controller (7) and the air pressure meter (6) and the regulating valve (5).

5. The electrolyte solution unloading balancing air pressure device according to claim 1, characterized in that: an emergency opening valve (9) is arranged at one end of the hose (3) close to the emptying valve (1).

6. The electrolyte solution unloading balancing air pressure device according to claim 1, characterized in that: the nitrogen tank (4) is placed on the movable support (11).

7. The electrolyte solution unloading balancing air pressure device according to claim 1, characterized in that: the movable support (11) comprises a support body (111) and a universal wheel (112).

8. The electrolyte solution unloading balancing air pressure device according to claim 6, characterized in that: the barometer (6) is connected with an alarm device (10).

9. The electrolyte solution unloading balancing air pressure device according to claim 1, characterized in that: the DCS controller (7), the interlocking device (8) and the alarm device (10) are fixed on the movable support (11).