Acid adding device for lead-acid storage battery production

Abstract

The utility model provides an acid adding device for lead-acid storage battery production, which comprises a base, a support column and a workbench, an acid storage tank is arranged on the workbench, the acid storage tank is connected with an acid adding pipe, and a quantitative structure is arranged between the acid adding pipe and the acid storage tank; the quantitative structure comprises a vacuum regulator and a transverse pipe cavity, the transverse pipe cavity comprises a liquid cavity, a sliding section and an air cavity, a partition plate is arranged in the sliding section, a liquid outlet in the bottom of the acid storage tank is communicated with the liquid cavity and provided with a liquid inlet valve, the vacuum regulator is located on the upper side of the workbench, and a bottom exhaust port is communicated with the air cavity. The lower part of the metering bin is connected with an acid adding pipe and is provided with a pressure release valve; the metering bin is arranged below the partition plate; the amount of dilute sulphuric acid entering the storage battery is limited through the quantitative structure, and it is guaranteed that the situation that the dilute sulphuric acid solution overflows due to excessive filling of the dilute sulphuric acid is avoided; or because the dilute sulphuric acid solution is filled too little or insufficient, accurate filling of the dilute sulphuric acid solution of the storage battery is achieved, manual guarding is not needed, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to battery production, in particular to an acid adding device for lead-acid battery production. Background Art

[0002] Lead-acid battery is a storage battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. When the lead-acid battery is in the discharged state, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in the charged state, the main components of the positive and negative electrodes are both lead sulfate. During the production process of lead-acid batteries, a dilute sulfuric acid solution needs to be injected into the inside of the lead-acid battery shell.

[0003] However, during the process of adding the dilute sulfuric acid solution, if too little dilute sulfuric acid solution is added, the dilute sulfuric acid solution is insufficient, which will affect the storage performance of the battery. The existing acid adding device cannot accurately control the amount of dilute sulfuric acid solution added, and manual supervision is required during the acid adding process, which has a high labor cost. Utility Model Content

[0004] The utility model aims to provide an acid adding device for lead-acid battery production, which can solve the problem that the amount of acid added cannot be accurately controlled during the battery production process, resulting in different battery performances.

[0005] To this end, the technical solution adopted by the utility model is: an acid adding device for lead-acid battery production, comprising a base, a support column and a workbench, the workbench is supported on the top of the base by the support column, an acid storage tank is arranged on the workbench, the acid storage tank is connected with an acid adding pipe, and a quantitative structure for limiting the amount of acid added is arranged between the acid adding pipe and the acid storage tank; the quantitative structure comprises a vacuum regulator and a transverse tube cavity arranged below the acid storage tank, the transverse tube cavity is a liquid cavity, a sliding section and an air cavity from left to right, a partition is arranged in the sliding section, the partition can slide left and right in the sliding section to change the volume of the liquid cavity and the air cavity, the liquid outlet at the bottom of the acid storage tank is connected to the liquid cavity, the vacuum regulator is located on the upper side of the workbench, and its bottom exhaust port is connected to the air cavity, a liquid inlet valve is arranged at the connection between the acid storage tank and the liquid cavity, a metering bin connected to the transverse tube cavity is arranged below the middle of the sliding section, an acid adding pipe is connected below the metering bin, and a pressure relief valve is arranged at the connection between the metering bin and the acid adding pipe, and the metering bin is arranged below the partition.

[0006] After the acid is prepared in the acid storage tank, the liquid inlet valve is opened and the acid enters the liquid cavity. When the acid needs to be injected into the lead-acid battery, the pressure change in the air cavity is adjusted by the vacuum regulator, thereby driving the partition to move to the right, so that the acid in the liquid cavity enters the metering bin. After the metering bin is filled, it is the amount of acid injected into the lead-acid battery at one time. The vacuum regulator then adjusts the pressure in the air cavity to push the partition to the left and press the acid in the metering bin downward at the same time. The vacuum regulator continuously pressurizes the metering bin to reach the critical value of the pressure relief valve. The pressure relief valve opens, and the acid in the acid adding pipe enters the battery to complete the acid addition.

[0007] Preferably, the upper and lower sides of both ends of the sliding section are provided with baffle limit blocks, which limit the sliding of the baffle, thereby increasing the range of pressure change in the air cavity, making it easier for the acid in the metering bin to enter the acid adding pipe through the pressure relief valve to complete acid addition.

[0008] More preferably, the vacuum regulator includes a hollow tube, a piston disposed in the hollow tube, and a piston rod connected to the piston, wherein the piston rod extends above the hollow tube. The piston rod drives the piston to move up and down, so that the pressure in the vacuum regulator and the air cavity changes, forming a vacuum negative pressure, thereby driving the partition to slide to the right.

[0009] More preferably, a pressure balancing tube connected to the gas cavity and the liquid cavity is arranged above the transverse tube cavity, and a pressure balancing valve is arranged on the pressure balancing tube. The pressure in the gas cavity and the liquid cavity is balanced by opening the pressure balancing valve on the pressure balancing tube, so that during the acid injection process, the gas cavity can ensure that the vacuum regulator can adjust the pressure in the gas cavity to form a vacuum negative pressure through the balanced pressure.

[0010] Further preferably, a liquid level detector is provided in the liquid cavity, liquid is fed into the liquid cavity through a liquid inlet valve, the liquid level detector is connected to a liquid level signal receiving end of a controller, and a liquid inlet control end of the controller is connected to the liquid inlet valve. The liquid level detector detects the height of the acid in the liquid cavity and is connected to the liquid inlet valve signal, so as to facilitate the replenishment of the acid in the liquid cavity.

[0011] The beneficial effects of the utility model are as follows: during the acid-adding process of battery production, the pressure in the air cavity is adjusted by the vacuum regulator to form a vacuum, the partition slides to the right in the sliding section, and the acid enters the metering bin. When the pressure in the air cavity is increased, the partition slides to the left, and the acid in the metering bin is subjected to increased pressure, exceeds the critical value of the pressure relief valve, and enters the battery downward, thereby achieving the purpose of controlling the amount of dilute sulfuric acid entering the battery, ensuring that during the acid-adding process, the dilute sulfuric acid solution will not overflow due to excessive addition of dilute sulfuric acid, causing corrosion to the external battery shell, etc.; or the dilute sulfuric acid solution will not be insufficient due to insufficient addition of dilute sulfuric acid solution, which will affect the storage performance of the battery, thereby achieving accurate filling of the dilute sulfuric acid solution of the battery without manual supervision, thereby reducing human resource costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] like Figure 1 As shown, an acid adding device for lead-acid battery production includes a base 1, a support column 2 and a workbench 3. The workbench 3 is supported above the base 1 by the support column 2. An acid storage tank 4 is arranged on the workbench 3. The acid storage tank 4 is connected to an acid adding pipe 5. A quantitative structure for limiting the amount of acid added is arranged between the acid adding pipe 5 and the acid storage tank 4; the quantitative structure includes a vacuum regulator 7 and a transverse tube cavity 6 arranged below the acid storage tank 4. The transverse tube cavity 6 is composed of a liquid cavity 601, a sliding section and an air cavity 602 from left to right.

[0015] A partition 8 is provided in the sliding section, and the partition 8 can slide left and right in the sliding section to change the volume of the liquid cavity 601 and the gas cavity 602. The upper and lower sides of both ends of the sliding section are respectively provided with partition limit blocks 10. The partition limit blocks 10 limit the sliding of the partition 8, thereby increasing the range of pressure change in the gas cavity 602, so that the acid in the metering bin 9 can enter the acid adding pipe 5 through the pressure relief valve to complete the acid addition.

[0016] The bottom liquid outlet of the acid storage tank 4 is connected to the liquid cavity 601, the vacuum regulator 7 is located on the upper side of the workbench 3, and its bottom exhaust port is connected to the air cavity 602. The vacuum regulator 7 includes a hollow tube 701, a piston 702 disposed in the hollow tube 701, and a piston rod 703 connected to the piston 702, and the piston rod 703 extends above the hollow tube 701. The piston 702 is driven up and down by the piston rod 703, so that the pressure in the vacuum regulator 7 and the air cavity 602 changes, forming a vacuum negative pressure, thereby driving the partition 8 to slide to the right.

[0017] A liquid inlet valve is provided at the connection between the acid storage tank 4 and the liquid cavity 601, a metering bin 9 connected to the horizontal tube cavity 6 is provided at the lower middle part of the sliding section, an acid adding pipe 5 is connected below the metering bin 9, and a pressure relief valve is provided at the connection between the metering bin 9 and the acid adding pipe 5, and the metering bin 9 is arranged below the partition 8.

[0018] After the acid solution is prepared in the acid storage tank 4, the liquid inlet valve is opened, and the acid solution enters the liquid cavity 601. When the acid solution needs to be injected into the lead-acid battery, the pressure change in the air cavity 602 is adjusted by the vacuum regulator 7, thereby driving the partition 8 to move to the right, so that the acid solution in the liquid cavity 601 enters the metering bin 9. After the metering bin 9 is filled, the amount of acid injected into the lead-acid battery at one time is adjusted by the vacuum regulator 7, and the partition 8 is pushed to the left, and the acid solution in the metering bin 9 is pressed downward at the same time. The vacuum regulator 7 continuously pressurizes the metering bin 9 to reach the critical value of the pressure relief valve, and the pressure relief valve is opened, and the acid solution in the acid adding pipe 5 enters the battery to complete the acid addition.

[0019] A pressure balancing tube 11 connected to the gas cavity 602 and the liquid cavity 601 is arranged above the transverse tube cavity 6, and a pressure balancing valve 12 is arranged on the pressure balancing tube 11. The pressure in the gas cavity 602 and the liquid cavity 601 is balanced by opening the pressure balancing valve 12 on the pressure balancing tube 11, so as to ensure that during the acid injection process, the gas cavity 602 can ensure that the vacuum regulator 7 can adjust the pressure in the gas cavity 602 to form a vacuum negative pressure through the balanced pressure.

[0020] A liquid level detector 13 is provided in the liquid cavity 601, and liquid is fed between the acid storage tank 4 and the liquid cavity 601 through a liquid inlet valve, and the liquid level detector 13 is connected to a liquid level signal receiving end of a controller, and a liquid inlet control end of the controller is connected to the liquid inlet valve. The height of the acid solution in the liquid cavity 601 is detected by the liquid level detector 13, and connected with the liquid inlet valve signal, so as to facilitate the replenishment of the acid solution in the liquid cavity 601.

[0021] During the acid-adding process of battery production, the pressure in the air cavity 602 is adjusted by the vacuum regulator 7 to form a vacuum, and the partition 8 slides to the right in the sliding section, and the acid enters the metering bin 9. When the pressure in the air cavity 602 is increased, the partition 8 slides to the left, and the acid in the metering bin 9 is subjected to increased pressure, exceeding the critical value of the pressure relief valve, and enters the battery downward, thereby achieving the purpose of controlling the amount of dilute sulfuric acid entering the battery, ensuring that during the acid-adding process, the dilute sulfuric acid solution will not overflow due to excessive addition of dilute sulfuric acid, causing corrosion to the external battery shell, etc.; or the dilute sulfuric acid solution will not be insufficient due to insufficient addition of dilute sulfuric acid solution, which will affect the storage performance of the battery, thereby achieving accurate filling of the dilute sulfuric acid solution of the battery without manual supervision, reducing human resource costs.

[0022] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An acid adding device for lead-acid battery production, comprising a base (1), a support column (2) and a workbench (3), characterized in that: The workbench (3) is supported above the base (1) by a support column (2); an acid storage tank (4) is arranged on the workbench (3); the acid storage tank (4) is connected to an acid adding pipe (5); a quantitative structure for limiting the amount of acid added is arranged between the acid adding pipe (5) and the acid storage tank (4); the quantitative structure comprises a vacuum regulator (7) and a transverse tube cavity (6) arranged below the acid storage tank (4); the transverse tube cavity (6) comprises a liquid cavity (601), a sliding section and an air cavity (602) from left to right; a partition plate (8) is arranged in the sliding section, and the partition plate (8) can slide left and right in the sliding section. The volumes of the liquid cavity (601) and the gas cavity (602) are thereby changed. The bottom liquid outlet of the acid storage tank (4) is in communication with the liquid cavity (601). The vacuum regulator (7) is located on the upper side of the workbench (3), and its bottom exhaust port is in communication with the gas cavity (602). A liquid inlet valve is provided at the connection between the acid storage tank (4) and the liquid cavity (601). A metering bin (9) in communication with the transverse tube cavity (6) is provided at the lower middle portion of the sliding section. An acid adding pipe (5) is connected below the metering bin (9), and a pressure relief valve is provided at the connection between the metering bin (9) and the acid adding pipe (5). The metering bin (9) is provided below the partition (8).

2. The acid adding device for lead-acid battery production according to claim 1, characterized in that: The upper and lower sides of both ends of the sliding section are respectively provided with partition limit blocks (10).

3. The acid adding device for lead-acid battery production according to claim 1, characterized in that: The vacuum regulator (7) comprises a hollow tube (701), a piston (702) disposed in the hollow tube (701), and a piston rod (703) connected to the piston (702), wherein the piston rod (703) extends above the hollow tube (701).

4. The acid adding device for lead-acid battery production according to claim 1, characterized in that: A pressure balancing tube (11) communicating with the air cavity (602) and the liquid cavity (601) is arranged above the transverse tube cavity (6), and a pressure balancing valve (12) is arranged on the pressure balancing tube (11).

5. The acid adding device for lead-acid battery production according to claim 1, characterized in that: A liquid level detector (13) is provided in the liquid cavity (601), liquid is introduced into the acid storage tank (4) and the liquid cavity (601) via a liquid inlet valve, the liquid level detector (13) is connected to a liquid level signal receiving end of a controller, and a liquid inlet control end of the controller is connected to the liquid inlet valve.

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