Gas-phase silicon dioxide dispersion liquid storage tank for lead-acid storage battery

Abstract

A fumed silica dispersion liquid storage tank for a lead-acid storage battery comprises a liquid inlet and outlet part, a gas inlet part and a gas exhaust part, the liquid inlet and outlet part comprises a storage tank, a liquid inlet pipe, a liquid outlet pipe and a liquid outlet pipe electromagnetic valve installed on the liquid outlet pipe, the middle of the liquid outlet pipe is installed on an installation opening in the storage tank, one end of the liquid outlet pipe extends into the bottom position in the storage tank, and the other end of the liquid outlet pipe is arranged outside the storage tank; the gas inlet part comprises a nitrogen cylinder, a gas inlet pipe electromagnetic valve and a gas inlet pipe, one end of the gas inlet pipe is arranged at an assembly opening in the top of the storage tank, and the other end of the gas inlet pipe is connected with the nitrogen cylinder; the exhaust part comprises a buoy and a telescopic channel connected with the buoy, the upper end of the telescopic channel is connected with the air outlet pipe, and an exhaust hole is formed in the lower portion, close to the buoy, of the telescopic channel. In the using process of dispersion liquid in the storage tank, the inert gas environment is always kept above the dispersion liquid, and the gelation and deterioration problems of the dispersion liquid are reduced.

Description

Technical Field

[0001] The utility model relates to the field of lead-acid batteries, in particular to a gas phase silicon dioxide dispersion storage tank. Background Art

[0002] Currently, more and more batteries use fumed silica as an additive. The usual method is to purchase fumed silica dispersion from outside. However, since fumed silica dispersion has high requirements for storage temperature, the temperature is difficult to control during the purchase and transportation process. In order to control the consistency of battery quality, battery factories have turned to self-prepared dispersion.

[0003] After the fumed silica dispersion is prepared, it is usually pumped into a storage tank for transfer. During use, the fumed silica dispersion comes into contact with the air inside the storage tank, causing the gel to accelerate or even deteriorate. This results in additional scrapping and cleaning work, and affects the quality consistency of the battery. Summary of the invention

[0004] The purpose of the utility model is to provide a fumed silica dispersion storage tank for lead-acid batteries to address the above-mentioned deficiencies, which can replenish nitrogen into the tank body, so that the tank body always maintains an inert gas atmosphere, and effectively reduces the gel deterioration of the fumed silica dispersion.

[0005] The technical solution of the utility model is: comprising a liquid inlet and outlet part, an air intake part, and an exhaust part;

[0006] The liquid inlet and outlet parts include a storage tank, a liquid inlet pipe, a liquid outlet pipe and a liquid outlet pipe solenoid valve installed on the liquid outlet pipe. The middle part of the liquid outlet pipe is installed on the installation port on the storage tank, one end of the liquid outlet pipe extends into the bottom position in the storage tank, and the other end of the liquid outlet pipe is placed outside the storage tank; the air intake part includes a nitrogen bottle, an air intake pipe solenoid valve and an air intake pipe. One end of the air intake pipe is installed at the assembly port on the top of the storage tank, and the other end of the air intake pipe is connected to the nitrogen bottle; the exhaust part includes a float, a telescopic channel connected to the float, the upper end of the telescopic channel is connected to the outlet pipe, and the lower part of the telescopic channel close to the float is provided with an exhaust hole.

[0007] The liquid inlet and outlet parts, air intake part and exhaust part are all made of alkali-resistant materials.

[0008] The telescopic channel is formed by a telescopic tube. When the bottom of the float storage tank is in contact, the length of the telescopic tube is extended along with the displacement of the float.

[0009] The telescopic tube is a corrugated hose, and a limit slide rod is arranged inside the telescopic tube. The limit slide rod ensures that the corrugated hose does not deviate or get stuck during the telescopic process.

[0010] The float is composed of four floating balls evenly distributed at the bottom of the telescopic channel.

[0011] A gas one-way valve is installed on the gas outlet pipe.

[0012] It also includes a controller connected with the liquid outlet pipe electromagnetic valve and the air inlet pipe electromagnetic valve.

[0013] When liquid is discharged from the liquid outlet pipe, open the solenoid valve on the nitrogen bottle at the same time, and introduce nitrogen into the tank, and then the nitrogen squeezes the air and discharges it through the corrugated hose. When the liquid stops flowing, close the solenoid valve on the gas bottle to stop the gas supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural diagram of the float and telescopic channel;

[0016] Among them: 1. Storage tank; 2. Dispersion liquid; 3. Liquid inlet pipe; 4. Liquid outlet pipe; 5. Liquid outlet pipe solenoid valve; 6. Controller; 7. Nitrogen bottle; 8. Air inlet pipe solenoid valve; 9. Air inlet pipe; 10. Float; 11. Corrugated hose; 12. Air outlet pipe; 13. Limit slide rod; 14. Gas one-way valve.

[0017] The liquid outlet pipe solenoid valve 5 and the air intake pipe solenoid valve 8 are both connected to the controller 6 through lines. DETAILED DESCRIPTION

[0018] Figure 1 , 2 As shown, the utility model is a gas phase silica dispersion storage tank, the middle of the liquid outlet pipe 4 is installed on the installation port on the storage tank 1, one end of the liquid outlet pipe 4 extends into the bottom position of the storage tank 1, the other end of the liquid outlet pipe 4 is placed outside the storage tank 1, one end of the air inlet pipe 9 is installed at the assembly port at the top of the storage tank 1, and the other end of the air inlet pipe 9 is connected to the nitrogen bottle 7. The corrugated hose 11 forms a telescopic channel, the upper end of the corrugated hose 11 is connected to the air outlet pipe 12, and four floating balls 10 are symmetrically distributed around the bottom of the corrugated hose 11. There is an exhaust hole at the bottom of the telescopic channel near the floating ball, which can push the corrugated hose 11 under the action of buoyancy and gravity, and expand and contract with the change of the liquid level of the dispersion 2, ensuring that the gas can always be discharged from the bottom of the corrugated hose 11. The length of the corrugated hose 11 can ensure that after it is extended, the bottom can reach the bottom of the storage tank 1. There is a limit slide rod 13 inside the corrugated hose 11, and the limit slide rod 13 ensures that the corrugated hose 11 does not deviate and jam during the expansion and contraction process. A gas one-way valve 14 is installed on the air outlet pipe 12, so that the air inside the storage tank 1 can be discharged to the outside through the air outlet pipe 12 under pressure, while preventing the outside air from entering the storage tank 1 through the corrugated hose 11 through the air outlet pipe 12. The flow rate of the liquid outlet pipe 4 matches the flow rate of the air inlet pipe 9, ensuring that the volume of nitrogen entering the storage tank 1 is equal to the volume of the dispersion liquid 2 flowing out of the storage tank 1 in the same time.

[0019] The specific implementation is as follows:

[0020] Initial state: First, manually control the controller 6 to open the solenoid valve 8 on the air inlet pipe, so that the nitrogen in the nitrogen bottle 7 enters the storage tank 1 through the air inlet pipe 9. Since the density of nitrogen is lighter than that of air, the nitrogen is filled from the top to the bottom of the storage tank 1, so that the air inside the storage tank 1 is discharged through the bottom of the corrugated hose 11 through the air outlet pipe 12, so that the inside of the storage tank 1 is filled with nitrogen to form an inert gas environment. Then control the controller 6 to close the solenoid valve 8 on the air inlet pipe and stop the gas supply. At this time, the gas one-way valve 14 is closed to prevent the gas outside the storage tank 1 from flowing back, and then it is switched to the automatic control state;

[0021] When liquid is introduced: after the dispersion liquid 2 is prepared, it enters the storage tank 1 through the liquid inlet pipe 3. The liquid level of the dispersion liquid 1 inside the storage tank 1 rises, and the excess nitrogen is discharged through the bottom of the corrugated hose 11, the gas one-way valve 14 and the outlet pipe 12. As the liquid level rises, the four floats 10 connected to the bottom of the corrugated hose 11 push the corrugated hose 11 to compress under the action of buoyancy. Since there is a limit slide rod 13 inside the corrugated hose 11, it can ensure that the corrugated hose 11 does not deviate during the compression process, and ensure that the bottom of the corrugated hose 11 is always near the liquid surface, but not submerged by the dispersion liquid 2. When the liquid is stopped, the gas one-way valve 14 on the outlet pipe 12 is closed to prevent the external gas from flowing back.

[0022] When discharging liquid, when the controller 6 automatically controls the liquid outlet pipe solenoid valve 5 to open and discharge liquid, the liquid level of the dispersion liquid 2 inside the storage tank 1 drops, driving the float 10 to drop, and the float 10 pulls the corrugated hose 11 to extend, and the bottom of the corrugated hose 11 also drops. When the controller 6 automatically controls the liquid outlet pipe solenoid valve 5 to open, it also controls the air inlet pipe solenoid valve 8 to open, so that the nitrogen in the nitrogen bottle 7 enters the storage tank 1 through the air inlet pipe 9, making up for the extra space after the dispersion liquid 2 is pumped away, so that the inert gas atmosphere is always maintained inside. When the liquid output reaches the specified value, the controller 6 controls the liquid outlet pipe solenoid valve 5 to close and stop discharging liquid. At the same time, the controller 6 controls the air inlet pipe solenoid valve 8 to close and stop air intake. When the air intake stops, the gas one-way valve 14 on the air outlet pipe 12 is closed to prevent external gas from flowing back.

Claims

1. A fumed silica dispersion storage tank for lead-acid batteries, characterized in that: Including liquid inlet and outlet parts, air intake part, and exhaust part; The liquid inlet and outlet part comprises a storage tank (1), a liquid inlet pipe (3), a liquid outlet pipe (4), and a liquid outlet pipe solenoid valve (5) installed on the liquid outlet pipe (4); the middle of the liquid outlet pipe (4) is installed on a mounting opening on the storage tank (1); one end of the liquid outlet pipe (4) extends into the bottom position of the storage tank (1), and the other end of the liquid outlet pipe (4) is placed outside the storage tank (1); The air intake part comprises a nitrogen bottle (7), an air intake pipe solenoid valve (8) and an air intake pipe (9), one end of the air intake pipe (9) is mounted at the assembly opening at the top of the storage tank (1), and the other end of the air intake pipe (9) is connected to the nitrogen bottle (7); The exhaust part comprises a float and a telescopic channel connected to the float, the upper end of the telescopic channel is connected to an air outlet pipe (12), and the lower part of the telescopic channel close to the float is provided with an exhaust hole.

2. The fumed silica dispersion storage tank for lead-acid batteries according to claim 1, characterized in that: The liquid inlet and outlet parts, air intake part and exhaust part are all made of alkali-resistant materials.

3. The fumed silica dispersion storage tank for lead-acid batteries according to claim 1, characterized in that: The telescopic channel is formed by a telescopic tube, and when the bottom of the float storage tank (1) is in contact, the length of the telescopic tube is extended along with the displacement of the float.

4. The fumed silica dispersion storage tank for lead-acid batteries according to claim 3, characterized in that: The telescopic tube is a corrugated hose (11); a limiting sliding rod (13) is provided inside the telescopic tube.

5. The fumed silica dispersion storage tank for lead-acid batteries according to claim 1 or 3, characterized in that: The float is composed of four floating balls (10) evenly distributed at the bottom of the telescopic channel.

6. The fumed silica dispersion storage tank for lead-acid batteries according to claim 1, characterized in that: A gas one-way valve (14) is installed on the gas outlet pipe (12).

7. The fumed silica dispersion storage tank for lead-acid batteries according to claim 1, characterized in that: It also includes a controller (6) connected to the liquid outlet pipe solenoid valve (5) and the air inlet pipe solenoid valve (8).

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