JP3518065B2 - Chemical tank rehydration equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for replenishing a chemical conversion tank with water in a chemical conversion process of a lead storage battery.

[0002]

2. Description of the Related Art When a lead-acid battery electrode plate is formed, water in a formation tank is consumed by electrolysis and gradually decreases. In particular, at the end of chemical formation, the water decreases drastically, so water must be supplied. Conventionally, this replenishment of water has been performed manually. That is, an operator replenishes a large number of chemical conversion tanks with hoses while controlling an appropriate amount of water. However, the formation time is usually 24 hours or more, and there are cases where water must be supplied at night, which sometimes necessitates a night shift worker. Further, even during the daytime replenishment work, replenishing water while routing the hose through the acid mist was a heavy work.

In order to eliminate such manual work, as shown in FIG. 4, a large number of branch pipes 2 are provided in a main pipe 1 having a valve 4 at one end, and the ends of the branch pipes 2 are provided in respective chemical conversion tanks 3. A device for replenishing each of the chemical conversion tanks 3 with water is adopted by arranging above the chemical conversion tanks 3 and detecting a decrease in the water level of the chemical conversion tanks 3 and opening the valve 4. However, in this device, it is impossible to distribute an equal amount of water to each chemical conversion tank 3 by opening the valve 4, so that the branch pipe 2 is provided with the valve 5 and the operator opens and closes the valve 5 to replenish the water. I had to adjust the amount. In addition, it was attempted to install an automatic valve and level gauge for each chemical conversion tank to automatically replenish water, but the level gauge and valve were corroded by acid and had to be replaced frequently, resulting in high equipment costs. It has not been put to practical use.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to automatically replenish water and reduce the cost of a chemical tank replenisher. To provide.

[0005]

In order to achieve the above object, the present invention relates to a chemical tank replenishing apparatus having a chemical tank, a water supply pipe, a valve, a water tank, and a liquid level sensor. The chemical conversion tank is composed of a plurality and has one representative tank, the water supply pipe is composed of a main pipe and a plurality of branch pipes branched from the main pipe, and the main pipe is the water supply pipe. The tank is connected to the tank via the valve, the branch pipe is provided in each of the chemical conversion tank, the liquid level sensor detects the water level of the representative tank, It is characterized by controlling the opening and closing of the valve. The branch pipe rises to a position higher than the main pipe, and the highest position is higher than the valve.

[0006]

The liquid level sensor detects the water level in the representative tank and controls the opening / closing of the valve, so that the water level in the chemical conversion tank can be automatically kept constant. Also, because the liquid level sensor is attached only to the representative tank, the equipment cost is low,
Moreover, if the liquid level sensor corrodes, it is only necessary to replace the sensor. Furthermore, if the branch pipe rises to a position higher than the main pipe and the highest position of the branch pipe is higher than the valve, the water in the main pipe will not flow into the formation tank when the valve is closed, and The water level can be made approximately the same as the position detected by the liquid level sensor.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing an embodiment of the present invention.
Are arranged in a row in the chemical conversion tank, and one of them is provided with the representative tank 6a. The representative tank 6a has a small pipe 6b that extends horizontally from the lower portion of the side surface and is bent upward. The pipe 6b and the inside of the representative tank 6a communicate with each other, and their upper edges coincide with each other. The liquid level sensor 10 is attached to the upper portion of the pipe 6b so that the water level in the representative tank 6a can be detected.

A water supply pipe 7 is arranged above the chemical conversion tanks 6 arranged in a line. The water supply pipe 7 crosses over each chemical conversion tank 6 and a main pipe 7a having an inner diameter of 100 mm or more,
The main pipe 7a includes a branch pipe 7b having an inner diameter of 10 mm or less branched from a position corresponding to each chemical conversion tank 6. The branch pipe 7b is a main pipe 7a arranged horizontally as shown in FIG.
Is erected from the upper part, bent in a U-shape, extends downward to the chemical conversion tank 6, and is provided with a nozzle having an inner diameter of 5 mm at the tip. The main pipe 7a is connected via a valve 8 to a water supply tank 9 which is higher than the main pipe 7a by 5 m or more.
Further, the valve 8 is located below the bent portion of the branch pipe 7b and is electrically connected to the liquid level sensor 10 so that a motor or a cylinder can be actuated to open / close by an ON / OFF signal of the sensor 10. Has become.

Next, a method of replenishing the chemical conversion tank 6 with the above apparatus will be described. First, when the electrolytic solution 11 in the representative tank 6a is consumed and the water level of the electrolytic solution falls below the position where the liquid level sensor 10 is attached to the pipe 6b, an ON signal is transmitted from the sensor 10 to the valve 8. By this signal, the motor or cylinder of the valve 8 is actuated to open the state, and the water stored in the water supply tank 9 flows into the main pipe 7a by the atmospheric pressure and is evenly injected into each chemical conversion tank 6 through the branch pipe 7b. It When the water level in the representative tank 6a rises and the water level in the pipe 6b rises above the mounting position of the sensor 10, an OFF signal is transmitted from the sensor 10 to the valve 8 and the valve 8 closes. At this time, of the water remaining in the main pipe 7a and the branch pipe 7b, the water remaining inside the bent portion of the branch pipe 7b to the tip falls into the chemical conversion tank 6. in this way,
Every time the water level of the electrolytic solution in the chemical conversion tank 6 drops, the water 12 is automatically supplemented from the water supply tank 9 so that the water level in the chemical conversion tank 6 is always kept substantially constant. This state is shown in FIG. FIG. 3 shows changes in the water level of the representative tank 6a during the formation time of 24 hours, in which the position of the liquid level sensor is set so that the water level falls within the range of 400 to 460 mm.

When the branch pipe 2 is branched from the lower part of the main pipe 1 and water is supplied to all the chemical conversion tanks 3 for the same time as in the water refilling device of FIG. 4, the water pressure of the branch pipe 2 near the valve 4 is high. , As much water as the chemical conversion tank 3 near the valve 4 is injected,
There is an excess or deficiency in the water level of each chemical conversion tank, but like the present invention,
If a nozzle is attached to the end of the branch pipe 7b to make the pressure loss of the branch pipe 7b considerably larger than the pressure loss of the main pipe 7a,
The amount of water replenished in each chemical conversion tank becomes more accurate.

[0011]

As described above, according to the present invention, the following effects can be obtained. (1) According to claim 1, the water level in the chemical conversion tank can be automatically kept constant with inexpensive equipment, the liquid level sensor can be replaced only once, and the maintenance work can be simplified. (2) According to the second aspect, it is possible to inject approximately the same amount of water into each of the chemical conversion tanks, to maintain the water level accurately, and to prevent chemical failure due to liquid leakage from the chemical conversion tanks or insufficient liquid.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

FIG. 2 is a sectional view of a water supply pipe according to the present invention.

FIG. 3 is a graph showing changes in water level in a chemical conversion tank when the present invention is used.

FIG. 4 is a schematic view showing a conventional example.

[Explanation of symbols]

6 formation tank 6a Representative tank 7 water supply pipe 7a Main piping 7b Branch pipe 8 valves 9 water tank 10 Liquid level sensor

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Showa 48-68820 (JP, U) Showa 48-49052 (JP, U) Showa 50-127712 (JP, U) Japanese public 42- 21794 (JP, B1) JP-B-46-28455 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01M 4/16 H01M 4/22 B67D 3/00 C

Claims (2)

(57) [Claims] 1. A plurality of chemical conversion tanks (6) including one representative tank (6a), a water supply pipe (7), a valve (8), a water supply tank (9), and a liquid level sensor (10). The water supply pipe (7) includes a main pipe (7a) and a plurality of branch pipes (7b) branched from the main pipe (7a), and the main pipe (7a) includes the water supply tank ( 9) and valves (8)
And the liquid level sensor (10).
Is a chemical tank replenisher for controlling the opening and closing of the valve (8) by detecting the water level of the representative tank (6a) ,
Stand the branch pipe (7b) higher than the main pipe (7a).
The chemical conversion tank water replenishing device, characterized in that a nozzle is attached to the tip of the branch pipe (7b) . 2. The branch pipe (7b) is connected to the main pipe (7a).
The chemical tank replenishing device according to claim 1 , wherein the branch pipe (7b) is raised to a higher position and the highest position of the branch pipe (7b) is arranged higher than the valve (8) .