JPS6038477B2 - How to energize - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides, in a cell group in which a plurality of n ion-exchange membrane method cell cells C, to Cn are connected in parallel to a rectifier, any stop that belongs to the dew cell group. The present invention relates to a method for starting a Ci battery cell that is currently in operation without substantially changing the operating state while other detonation cells are in operation.

In ion-exchange membrane cells, for example, gas is generated in the relatively narrow cathode and anode chambers during the electrolysis of salt, so it is difficult to pass a steady current at once because initial bubbles cannot be removed smoothly. becomes. For this reason, the normal current is gradually increased to a steady value. In this case, if each battery case has one rectifier, the above operation can be easily performed. However, rectifiers are fairly expensive and it is advantageous to operate as many tanks as possible with one large rectifier. For this purpose, multiple dew tanks are connected in parallel to the rectifier. However, in such a case, for example, if the tank is to be started with a delay of one tank, it is necessary to temporarily stop all the tanks, insert the turtle tank to be started, and then gradually start all the tanks. During this time, the operational status of all tanks deteriorates, resulting in large losses. The present invention provides a method of splicing without causing losses as described above.

That is, in the present invention, in a battery case group in which n ion-exchange membrane method battery cells C, to C8 are connected in parallel to a rectifier, a Ci battery cell belonging to the dew tank group is connected to another dew tank. As a method for starting without substantially changing the operating condition, a resistor is interposed between the Ci electric wire and the rectifier, and the resistance is changed from a large resistance to a small resistance at the top, and finally the The present invention is characterized by eliminating resistance.As mentioned above, the present invention changes the electrical resistance of the circuit related to the starting crab tank, controls the amount of current flowing through it, and prevents troubles during starting. Controlling the amount of current using resistance in this way causes energy loss due to heat generation, etc., but with ion-exchange membrane method batteries, there is a loss of energy in a relatively short period of time. Therefore, since the time for adding resistance, which causes loss of electrical energy, is extremely short, the method of the present invention can be used very easily and from a comprehensive standpoint of detonator tank operation. The present invention will be explained below with reference to the drawings.

Figure 1 shows a group of box tanks to which the present invention is applied, in which dew tanks C, ~Cn are connected in parallel to a rectifier 1, and main disconnectors S, ~Sn are installed in each container. There is. In this example, Ci
This is an example of starting up with a delay, and the starting switch 2 is set to A,
It is connected to point B. FIG. 2 shows an example of the structure of an energizing switch in which a resistor is appropriately inserted.

In this example, p sub-switches B to Bp are connected in parallel between both terminals A and B, and a resistor Ri corresponding to any Bi of the sub-switches is connected to a resistor element y.・・・・・・・
yi...This is a structure reinforced by yp to become Zry. That is, B to Bp are all open in advance, and by first closing B, a resistive element y. There are p intervening p pieces, and the total resistance R,
becomes y, 10y20...yi+...10yp. Next, when & is closed, the total resistance R2 is y2 10...yi+...
・・・．・Since it becomes 10 yp and the relationship R, > R2, A
, B more current flows between them. Hereinafter, when Bi is closed, Ri becomes yi+...+yp, that is, 2fy. Also, there is a relationship Ri−,>Ri>RM, and the subswitch is
By sequentially closing from &, B3, . . ., Bp, the resistance can be gradually reduced. Therefore, after turning on the sub-switch Bp, the main disconnector Si can be turned on without any problem.
The speed at which the sub-switches are turned on (in some cases switched) one after another is determined by the state of the ion-exchange membrane cell.

In other words, in general, the pressure difference between the cathode chamber and the anode chamber in the crab house should not exceed 5 meters in water column, and the internal pressure of either the cathode chamber or the anode chamber should not exceed atmospheric pressure or more than 10 meters. Good. For this reason, the number of sub-switches B and resistance elements y will vary depending on the effective area of the ion exchange membrane, the amount of voltage drop in the turtle tank, and the current density at steady state, but as a guideline, the number of sub-switches B and resistance elements y will vary depending on the amount of current (kiloampere) flowing at steady state. 1 of that value
The stage should be within the range of /2 to 1/4. FIG. 3 shows another embodiment of the energizing switch.

In this case as well, sub-switches B and ~Bp are all open at first, and by closing B, the resistance R between A and B increases,
becomes. Next, by closing B2, the total resistance R2 is 1/(
1/y, 11/y2). When the subswitches are closed one after another in this way and Bi is closed, Ri becomes ./(1/y.0./y20.../tsui). In this case as well, of course Ri
-,>Ri>Ri0, and when Bp is closed, B. The resistance becomes the lowest when all of ~Bp are closed, and then the main disconnector Si is closed. The effect on the dew tank is the same whether it is in Figure 2 or Figure 3, and the explanation about the number of sub-switches and the way they are closed applied to Figure 2 also applies to Figure 3. It is omitted because it is a

The resistance elements described in this specification may all be of the same type or of different types, but it is generally advisable to provide them with a cooling device.

Example: Effective area: approx. 1.8 That ion exchange membrane method unit cell 8
Three pairs of dew tanks are connected in parallel to a rectifier.

The two tanks were previously operated in a steady state at 30 A/d, and one new tank was injected into them. In the energizing switch as shown in FIG. 1, all the resistance elements y are of the same type,
Water-cooled metal pipes were used so that each had a resistance of 0.003 ohm. There will be two stages of sub-switches, and the third stage will be a main disconnect switch. In this way, the first stage sub-switch was closed, the second stage sub-switch was closed after two nights of sanding, and the main disconnector was closed after one more night of sanding, but the connection could be made without any problems.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing connection points between a battery case group in which ion-exchange membrane method batteries are connected in a parallel manner and an energization switch. FIGS. 2 and 3 are diagrams showing the structure of the energizing switch. In the figure, 1 is a rectifier, 2 is an energizing switch, C, to Cn are battery containers, and S. ~Sn represents a main disconnector, B and ~Bp represent sub-switches, and y and ~yp represent resistance elements, respectively. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] In a battery case group in which C_1 to C_n are connected in parallel to a rectifier in 1n ion-exchange membrane method battery cells, C_i battery case belonging to the battery case group is connected to other batteries. As a method for starting without substantially changing the operating state of the tank, a resistor is interposed between the C_i battery tank and the rectifier, and the resistance is gradually changed from a large resistance to a small resistance, and finally the resistance An energization method characterized by removing. 2. Claim 1, characterized in that an energizing switch having the following structure is connected in parallel with the main disconnector attached to the C_i battery case, and the main disconnector is closed after the sub-switches B_1 to B_p are sequentially turned on. The method described in section. The energizing switch has sub-switch B_1 between its terminals.
...B_i...p pieces of B_p are connected in parallel,
Furthermore, corresponding to the sub-switch B_i, the resistance R_i is Σ
p resistive elements γ_1...γ_ so that ＾p_iγ
i... is a structure in which γ_p are connected. 3. Claim 1, characterized in that an energizing switch having the following structure is connected in parallel with the main disconnector attached to the C_i battery case, and the main disconnector is closed after the sub-switches B_1 to B_p are sequentially turned on. The method described in section. The energizing switch has sub-switch B_1 between its terminals.
...B_i...p pieces of B_p and resistance element γ_1...γ
It has a structure in which p pieces of _i...γ_p are each connected in parallel.