JPS6319595B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides continuous water flow for electrically insulating the electrical control unit from the supply side or the discharge side when performing electrical processing such as conditioning water by electrolysis. This invention relates to a continuous water flow electrical insulation mechanism that can detect whether or not the insulation state is maintained.

As this type of insulating element, one using a siphon tube is known. Although this is effective in principle, it has the disadvantage that the electrical insulation properties deteriorate when limescale accumulates during long-term use.
In particular, when the amount of water supplied is large, it becomes unusable in a relatively short period of time.

Therefore, by swirling the continuously supplied water stream,
While achieving a continuous supply of water to the chambers partitioned by partition walls, a tank that is completely electrically divided is constructed using water diversion members, and practical disadvantages (electrical insulation due to water scale) are avoided. A mechanism was proposed earlier that allowed for the destruction of

However, the problem here is that if a failure occurs in the opening/closing operation of the on-off valves installed in each chamber, the electric control part and the supply side or discharge side of the above mechanism are immediately electrically connected. It is to become accustomed to it.

Therefore, the present inventor has previously proposed a continuous water flow electrical insulation mechanism that allows water to be discharged from a partitioned chamber without providing a movable part such as the above-mentioned on-off valve.

This invention focuses on the fact that there is a certain relationship between the time point at which water starts to be discharged in the electrical insulation mechanism and the amount of water supplied to each chamber, and avoids oversupply to each chamber and a state in which insulation is impossible. In order to ensure safety, the present invention attempts to provide an electrically insulated detection mechanism for continuous water flow that uses a fixed discharge point as a detection point to prevent or detect operational inconveniences.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments. In the figure, reference numeral 1 denotes a fan-shaped water supply container unit that is divided in the circumferential direction with partition walls 1a in the radial direction. It constitutes a rotating tank. As is clear from the figure, the above unit has walls around the outside.
It is constructed in a shape that allows all the water in the unit to be removed when it is below the rotating shaft 2, and also to allow excess water in the unit 1 to overflow between the rotating shaft 2 and the unit 1. A gap 3 is formed to allow water to flow down to the drainage chamber 11a. On the upper side of the rotating shaft 2 and above the unit 1, a water supply port 4 is opened. Further, the rotating shaft 2 is hollow and allows air to flow in through a lower end opening 2a and to be discharged through an opening 2b provided on the upper side.A wind turbine blade 5 is attached to the upper end of the shaft. supported. Pulleys 5a and 2c are provided at the upper end of the windmill blade 5 and the rotating shaft 2, respectively, and the shaft 8a of the motor 8 is connected to the shaft 8a of the motor 8 via belts 6 and 7.
It is adapted to be interlocked with pulleys 8b and 8c provided in the. In this case, a speed reduction mechanism 22 is interposed in the transmission system of the rotating shaft 2. Further, a guide tube 9 is provided near the windmill blade 5 so that air can circulate through the rotation shaft 2 by the windmill blade 5.
is provided. Thus, when the windmill blade 5 rotates, air flows in the direction of the arrow through the openings 2a, 2b of the rotating shaft 2, thereby improving ventilation around the rotating shaft. In other words, there is a risk that the electrical insulation around the rotating shaft will be destroyed due to water droplets or moisture due to the water supply and drainage of the unit 1, but by improving ventilation with the openings 2a and 2b, the above problem can be solved. will be resolved.

An overflow edge 10 is provided below the upper edge of the unit, and when excess water is supplied from the water supply port 4, the excess water flows from the overflow edge 10 through the gap 3 to the drain chamber 11a of the water receiving tank 11. It's starting to flow. Further, in the water receiving tank 11, water is drained from the unit 1 in the insulating chamber 11b.

The unit 1 is provided with a watershed member 12 above the partition wall, which straddles the partition wall. This watershed member 12 has a structure that is fixed to the partition wall 1a of one unit 1, and does not structurally contact the other unit, maintaining an appropriate electrically insulating space. For this reason, the bulkhead 1 on the side where the installation is performed
a is slightly higher. The watershed member 12 itself has weirs 1 at both ends of the chevron-shaped watershed plate 12a.
2b.

In addition, in the water receiving tank 11, the drainage chamber 1
Two ring electrodes 13 are installed at the drain port 11c of 1a.
are provided, and when water flows, they become electrically connected to each other via water as a medium, and constitute a part of the detection mechanism 14 that emits a signal. When the detection mechanism 14 detects a signal, an on-off valve 16 located in the middle of the water supply pipe 15 communicating with the water supply port 4 is closed. Therefore, when there is an excess water supply, the water supply is immediately stopped. In addition, insulation chamber 1
1b, an electrode 17 for detecting earth leakage is arranged at a certain position, and when this electrode 17 is activated, a detection mechanism 18 is activated, and the opening of the throttle valve 19 located in the middle of the water supply pipe 15 is restricted. It is adjustable. If necessary, another electrode 20 is provided in the insulating chamber 11b, and when this electrode 20 is activated, the detection mechanism 21 is activated to control the rotational speed of the motor 80 to be increased.

In this case, the opening degree adjustment of the throttle valve 19 and the speed control of the motor 8 are performed from a certain opening degree to another fixed opening degree.
It may be possible to adopt a step shape that changes from one speed to another fixed speed, but it is also possible to adopt a form in which the opening degree and speed are gradually changed over time. In the above step format, when the electrodes 17 and 20 do not come in contact with the water flow, the opening degree and speed return to the original level. In the continuous format, when the electrodes 17 and 20 no longer come into contact with the water flow, the opening degree and speed return to a certain level. It is designed to return gradually over time.

In such a configuration, when the unit 1 is being rotated by the rotation of the rotating shaft 2, when water is supplied from the water supply port 4, the unit 1 is filled with water at this point, and there is also a gap between the units. When crossing the river, the watershed member 12 distributes the water. When the unit 1 is placed below the rotating shaft 2, it is in a naturally inclined state, and water is drained into the insulating chamber 11b. Since there are no moving parts such as on-off valves, there is no risk of drainage failure. If the flow rate at the water supply port 4 is excessive, the state shown in FIG. When water overflows from the outer peripheral edge of the unit 1 into the insulating chamber 11b, the insulating chamber 11b and the water supply port 4 become electrically connected using water as a medium. Therefore, after the watershed member 12 passes under the water supply port 4, the state shown in FIG. When the amount of water supplied to the unit 1 becomes excessive, the electrode 17 located at the overflow position comes into contact with the water flow and detects this, and the detection mechanism 18 is operated to adjust the opening degree of the throttle valve 19. As a result, the flow rate is reduced, and the amount of water that can be received by unit 1 is
It is below the level of the imaginary line in figure a. When there is a sudden increase in the flow rate, it is possible that the flow rate control may not be adequate. In this case, the electrode 20 acts as a support for the next stage. In other words, the electrode 20 is located at a location where the overflow is a little earlier (even in the event of an overflow here, the watershed member 12 is located at the water supply port 4).
(must be after passing below). When the electrode 20 touches the water stream, the detection mechanism 21 operates and the motor 8
Increase the rotation speed. By this, each unit 1
The amount of water received from the water supply port 4 decreases. In this way, the amount of water received by unit 1 is automatically controlled,
Electrical insulation can be ensured. Furthermore, even if the water supply from the water supply port 4 becomes excessive, there is a risk that the insulation function will no longer function if there is a failure in the control system.
In this embodiment, since water enters the drain chamber 11a over the overflow edge 10, the electrode 13 acts to
An abnormality can be detected and the on-off valve 16 can be closed.

In this embodiment, the rotary tank units are constructed separately, but some of them may be constructed integrally, or they may be attached to and detached from the rotating shaft. Also,
In this embodiment, electrodes 17 and 20 were prepared as detection electrodes, but only the electrodes corresponding to one of the functions (throttle valve opening adjustment or rotating shaft speed control) may be used, or a step type sensor may be used. , and a large number of pairs of electrodes are arranged in the rotation direction of the unit,
It may be possible to perform switching adjustment or switching control in multiple stages.

In the embodiment shown in FIG. 6, a plurality of units 1 are arranged to form a continuous water flow electrical insulator, in which the motor 8 is on the lower side and the bevel gears 31 and 32 are arranged. It works as a power transmission system for shaft 2. Also here, air flow has been eliminated from the configuration. Also, the seventh
As shown in the figure, the unit 1 is equipped with isosceles triangular jetties 1b and 1c in order to control the location of water overflow.
Equipped with: Therefore, although it is a relatively small device, not only can the processing capacity be significantly improved by having multiple units, but also the benefit is that the overflow position of a single unit can be determined fairly accurately due to the function of the jetty. be.

As described in detail above, the present invention includes a unit divided in the circumferential direction with partition walls in the radial direction, and a watershed member that straddles the partition wall of the rotary tank unit is provided above the partition wall. , the unit is configured to be rotated about an inclined axis, and a water supply port for supplying water to each unit is provided on the upper side of the inclined axis, and a water inlet is provided on the lower side of the inclined axis for the unit to be connected to the drain. Since the shape of the tank of the unit is configured so that water can be drained, and a means for detecting the position of drainage is provided at the drainage part of the unit, overflow from the unit can be prevented before the watershed member passes through the water supply port. This can be detected to prevent it from occurring, and the safety of electrical insulation can be ensured.

In addition, in the above, after detection, adjusting the throttle valve,
Although an embodiment has been described with respect to automatic control such as speed control of the rotating shaft, it goes without saying that after detection, a notification means such as a buzzer may be activated to interrupt the work.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional side view showing an embodiment of the present invention, Fig. 2 is a perspective view of the main part, Fig. 3 is a developed longitudinal sectional view of the main part, Fig. 4 is a plan view, Fig. 5 a, b is a vertical cross-sectional view to explain the overflow situation of the unit, No. 6
The figure is a partially longitudinal side view of another embodiment, and FIG. 7 is a side view of the unit. 1... Water supply container unit, 1a... Bulkhead, 1
b, 1c... Jetty, 2... Rotating shaft, 2a, 2b...
...Opening, 2c...Booli, 3...Gap, 4...
Water supply port, 5...Windmill blade, 5a...Pulley, 6,
7...Belt, 8...Motor, 8a...Shaft, 8
b, 8c...Pulley, 9...Guide cylinder, 10...
Overflow edge, 11...water tank, 11a...
Drainage room, 11b... Insulation room, 12... Watershed member, 12a... Watershed plate, 12b... Weir, 13...
... Electrode, 14 ... Detection mechanism, 15 ... Water supply pipe, 1
6... Opening/closing valve, 17... Electrode, 18... Detection mechanism, 19... Throttle valve, 20... Electrode, 21... Detection mechanism, 22... Reduction mechanism, 31, 32... Bevel gear.

Claims (1)

[Claims] 1 A plurality of water supply container units each having partition walls in the radial direction and divided in the circumferential direction are provided, and a watershed member that straddles the partition walls of the unit is provided above the partition wall, and the unit is connected to an inclined axis. Configure it so that it is rotated around
In addition, a water supply port for supplying water to each unit is provided above the inclined axis, and a tank of the unit is configured below the inclined axis so that water can be drained from the unit, and the water flows into the water supply container unit. A continuous system characterized in that an overflow detection device is provided at the overflow location and/or at the overflow water outlet of the unit, the overflow detection device being operable to detect overflow of excess supply water and control the flow rate of water supply to the unit. A water supply device that has an electrical insulation mechanism for water flow.