JP2669438B2 - Test equipment such as private generators - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a test device such as a private generator.

In high-rise buildings, etc., the performance of private generators installed to deal with emergencies such as power outages is tested with this type of equipment.

[Prior Art] As shown in FIG. 12, a conventional generator test apparatus for a private power generator causes resistance water 72 of about 20 ° C. to flow into a rectangular conduction tank 71, and into the resistance water 72, Immerse a pair of electrode plates 73 ... protruding in three directions and held so that they can move up and down, and in this state, the electricity generated from the private generator is energized for the required time between the electrode plates 73 ... Performance tests were conducted on the power generation capacity and durability of the machine.

To specifically explain one example of this test, when the standard of the private generator is output 1000 KVA, power factor 0.8, voltage 415 V,
A current of 642.6 A is applied between the electrode plates 73 in the energization tank 1 for about 3 hours to test whether there is any abnormality in the performance.

However, since the resistance water 72 in the energization tank 71 has a temperature rise due to a power failure and an electric conductivity also rises due to the inclusion of impurities, a current exceeding a set value (642.6 A in the generator of the standard) flows.

As a result, the engine of the generator is overloaded, which seriously hinders the test.

Therefore, in the conventional test equipment, the electrode plates 73 are moved up and down to adjust the current-carrying area of the electrode plates 73 in the resistance water 72 so that a current higher than the set value does not flow, and at the low temperature from the supply port 74. By supplying high-purity resistance water 72, the increase in the motoring rate was suppressed.

However, since such a conventional test apparatus needs to store a large amount of resistance water in the energization tank 71, the apparatus becomes large in size, is very inconvenient to carry, and the preparation for installation of the apparatus is too time-consuming.

Further, since the energization amount is changed by vertically moving the electrode plate 73, the adjustment cannot be accurately performed, and the electrode 73 projects above the energization tank 71, which poses a safety problem.

Further, during the test, the resistance tub 72 must be constantly replenished to the current-carrying tank 71, which consumes a large amount of water, which is extremely uneconomical.

In recent years, a load device system as described in Japanese Patent Application Laid-Open No. Sho 62-124474 has been proposed. As shown in FIG. 4 to FIG. 4, the main electrode 6 penetrates the bottom of the base electrode 3 and is erected inside the base electrode 3 in which water is stored (Japanese Patent Application Laid-Open No. 62-124474). Area is described as "planting"), and the planting was damaged and damaged over time, eventually leading to water leakage and consequent leakage.

Further, in the above-mentioned conventional device, as shown in FIGS. 1 to 4 of the above-mentioned publication, a fixed gallery 11 is provided on the back side of the radiator 8, but the gallery 11 constantly has its opening. It was exposed to the outside, and foreign matter had invaded the inside through this opening, or there was a problem in crime prevention.

Also, no consideration was given to noise control during the test operation, and the test was performed for hours. Therefore, there were various problems particularly in tests in urban areas.

[PROBLEMS TO BE SOLVED BY THE INVENTION] Thus, the present invention has been devised in order to address the above-mentioned conventional problems, and is a private power generator installed in any place where the device can be downsized. Even if it is possible to perform a test, it is possible to prevent an abnormal increase in the energization amount during the test with a simple operation, and to provide a test device for a private generator that does not waste the resistance water. The purpose of this is to provide a test device that is free from the risk of water leakage and electrical leakage due to long-term use. Also, there is no risk of foreign matter entering the test device, and security measures are taken. The purpose is to provide a testing device that is adequately implemented and has sufficient noise countermeasures.

[Means for Solving the Problem] A test device for a private power generator and the like according to the present invention comprises: three substantially cylindrical energization tanks 1 filled with a resistance liquid 2; The three main electrodes 3 that are supplied with electric power from a private generator to be tested, and are interposed between the main electrode 3 and the energization tank 1 so as to cover the main electrode 3 and energize from the main electrode 3. A movable insulator 4 for adjusting the amount of electricity to the tank 1, and a circulation piping system for cooling or filtering the resistance liquid 2 in the electricity tank 1 and returning it to the electricity tank 1 again for reuse. In a test device such as a private generator, a shutter plate 14 composed of a plurality of blades 14a is attached to the rear side of the radiator 12 which is a part of the circulation piping system, and the shutter plate 14 is Each of the blades 14a is configured to be rotatable about a substantially middle portion thereof. At the same time, each end in the width direction can be brought into contact with each other, and a soundproof material is attached to each wing plate 14a, which is configured like a rattle when expanded and a shutter when closed. A tank 19 for collecting water droplets adhering to the shutter plate 14 is provided below the shutter plate 14, and a rotatable screw rod 2 is provided on one side in the longitudinal direction of the wing plate 14a.
5 is installed in the vertical direction, is screwed into the screw rod 25, the nut member 24 movable in the axial direction of the screw rod 25 is adjacent to the plurality of blades 14a, the number of blades 14a The same number is provided, and the nut member 24 and the blade 14a are connected via a link 23 so that the blade 14a can be opened and closed by the movement of the nut member 24.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows the overall configuration of the embodiment, and the test apparatus has four electrode units A.

This is because the commonly used generator is a three-phase AC type, and accordingly three electrode units A are required and one is also provided as a spare.

The electrode unit A is composed of a substantially cylindrical energization bath 1, an electrode 3 and an insulator 4 arranged in the energization bath 1, and the energization bath 1 is filled with resistance water 2.

A substantially cylindrical electrode 3 is immersed in the resistance water 2, and the electrode 3 is suspended from the base end toward the front end in a current-carrying tank 1.
It is inserted inside.

The base end of the upper end of the electrode 3 is supported by a protective plate 6 via a support rod 5, and the tip end is supported by an insulating member 7.

The electrode 3 and the energizing tank 1 are connected to a private generator to be tested, and energization is performed between the electrode 3 and the energizing tank 1.

A substantially cylindrical insulator 4 is interposed between the energization tank 1 and the electrode 3, and the upper end of the insulator 4 is connected to a lifting device 9 via a support member 7.

For this reason, when the insulator 4 is moved up and down by the elevating device 9, the energizable area between the electrode 3 and the inner wall of the energization tank 1 changes, and as a result, the energization amount is adjusted.

An introduction pipe 11 is provided above the energization tank 1, and a drain pipe 10 is provided at the bottom.

In addition, the introduction pipe 11 and the drain pipe 10 provided in each of the power supply tanks 1 are connected to a radiator 12, and a pump 40 is attached to the drain pipe 10.

Therefore, the resistance water 2 whose temperature has risen in the energizing tank 1 is sent from the lower end of the energizing tank 1 through the drain pipe 10 to the radiator 12 by the pump 40, and after heat exchange, that is, cooling through the radiator 12. , And is supplied again into the energizing bath 1 through the introduction pipe 11.

Further, a fan 13 is provided on the front surface side of the radiator 12, and a shutter plate 14 composed of a plurality of blades 14a is rotatably provided on the rear surface side.

Therefore, the radiator 12 is cooled by the air forcedly blown by the fan 13, and the air passing through the radiator 12 is rectified by the shutter plate 14.

The resistance water 2 cooled by the radiator 12 is filtered by the filtering device 39 if necessary.

 FIG. 2 shows the configuration of the radiator unit.

A fan 13 is provided on the front side of the radiator 12, and the fan 13 is driven by a motor 16.

A spray pipe 17 is provided between the fan 13 and the radiator 12, and a spray nozzle 18 is attached to the spray pipe 17.

A shutter plate 14 composed of a plurality of blades 14a is provided on the back side of the radiator 12, and the plurality of blades 14a ... Are supported by a rotary shaft 15.

A tank 19 is provided below the shutter plate 14, and a pipe 20 is attached to the tank 19.

Therefore, the air blown by the fan 13 and the water jetted from the jet nozzle 18 are blown to the radiator 12, and the heat of vaporization of water is used for cooling, so that the heat exchange efficiency is further enhanced.

Further, since the water that has not completely evaporated in the radiator 12 hits the shutter plate 14 and is collected in the lower tank 19 and discharged from the pipe 20, the water does not scatter around.

As shown in FIG. 3, a ballast 22 is attached to one end of the wing plate 14a, and the wing plate 14a is prevented from opening by a stopper 21 beyond a certain opening.

Therefore, the shutter plate 14 is opened only when the fan 13 operates, and is closed when the fan 13 stops.

The number, size, etc. of the shutter plates 14 can be appropriately changed depending on the use conditions. A large number (9) may be provided as shown in FIG. 2 or about 2 to 3 as shown in FIG. You may.

FIG. 5 shows a specific structure of the shutter plate 14.

In the figure, a threaded rod 25 rotatable by a motor 26 is provided in a vertical direction on one side surface in the longitudinal direction of the blade 14a.

Reference numeral 24 is a nut member, and a screw rod 25 is screwed into the nut member 24.

The nut member 24 is movable in the axial direction of the screw rod 25 by rotating the screw rod 25.

Then, the nut member 24 is the plurality of blades 14a.
And the same number as the number of the blades 14a.

The nut member 24 and the wing plate 14a are connected via a link 23, and the up and down movement of the nut member 24 opens and closes the wing plate 14a.

That is, when the screw rod 25 is rotated by the motor 26, the nut member 24 moves up and down. As a result, the blade 14a is rotated via the link 23.

Further, in FIG. 6, a driven gear 30 is fixed to the rotary shaft 15 of the shutter plate 14, and a drive gear 28 is meshed with the uppermost driven gear 30 via an intermediate gear 29.

Further, an intermediate gear is meshed between the driven gears 30, 30, and these gears 28, 29, 30 are covered with a cover 31.

Therefore, when the drive gear 28 is driven by the motor 26, the driven gear 30 is driven via the intermediate gear 29, and as a result, the shutter plate 14 is rotated.

A soundproof material is attached to each of the plurality of blades 14a forming the shutter plate 14.

7 and 8 show another embodiment of the insulator 4. FIG.

As shown, the insulator 4 includes an inner tube 32 and an outer tube 33, and the inner tube 32 and the outer tube 33 have rectangular openings 34.
Three are formed.

Further, one of the inner pipe 32 and the outer pipe 33 is the energization tank 1
It is arranged rotatably in the circumferential direction.

Therefore, when the inner tube 32 or the outer tube 3 is rotated, the area in which the electrodes 3 and the inner wall of the energization tank 1 can be energized changes, and as a result, the energization amount is adjusted.

FIG. 9 shows the flow path of the resistance water 2 in detail, and the other end of the drain pipe 10 connected to the bottom of the energization tank 1 is connected to a radiator 12.
It is attached to the entrance of.

A pipe 49 is attached to the outlet of the radiator 12,
The pipe 49 is connected to the introduction pipe 11 via a pipe 50.

In addition, intake pipes 56 and 57 are provided in a water storage tank 35 in which a large amount of resistance water 2 is stored, and the intake pipe 56 is provided with a pump 36 and a pipe 4.
It is connected to the introduction pipe 11 via 6, 47, 48 and the switching valve 44.

The pump 36 is connected to the radiator 1 via the switching valves 41 and 43 and the pipe 51.
It can be connected to a pipe 49 through which the resistance water that has passed through 2 flows.

Further, a switching valve 42 is connected to the pipe 47, a switching valve 45 is connected to the pipe 55, and a radiator 38 and a filtration device 39 are connected between the switching valves 42 and 45 via the pipes 52, 53, 54 and 55. It is connected.

Further, the water intake pipe 57 is connected to the spray pipe 17 via the pump 37.

Next, the operating state of this flow path will be explained.
As shown in the figure, the resistance water 2 in the water storage tank 35 is pumped out of the intake pipe 56 by the pump 36, passes through pipes 46, 47, and 48, and is introduced into the inlet pipe 11.
It is filled in the energization tank 1 more.

When the energizing tank 1 is filled with the resistance water 2, the electrode 3 in the energizing tank 1 is connected to the generator to be tested, and the generator is tested for a predetermined time.

The output of 1000KV
A, a power factor of 0.8, a voltage of 415 V, and a current of 642.6 A
A power generation test for about an hour is performed.

During the test, the switching valve 44 is switched, and the resistance water 2 in the energization tank 1 is sent to the radiator 12 through the drain pipe 10 as shown in FIG. It is again supplied from the introduction pipe 11 to the energization tank 1 through 50. At this time, the fan 13 is driven, and the resistance water 2 from the waterproof tank 35 is passed through the water intake pipe 57 and the spray pipe 17 to the spray nozzle 1.
Sprayed on radiator 12 from 8.

Therefore, the resistance water 2 in the energizing tank 1 is always kept at a constant temperature (20 to 50 ° C.).

By the way, in the present invention, since the resistance water 2 is circulated and reused, there is a possibility that the resistance water 2 is contaminated due to energization in the energization tank 1 or mixing of impurities.

If the resistance water 2 is contaminated and its purity is reduced, the conductivity will be increased, which will hinder the power generation test.

Particularly, in a test at a high voltage, since pure water is used as the resistance water 2, the influence of contamination is great.

Therefore, in the illustrated embodiment, the resistance water 2 can be flushed even during the test.

During flushing, the switching valve 4
1, 42, 43, 44, 45 are switched, and the resistance water cooled by the radiator 12 passes through the pipe 49, then is sent to the pipe 46 by the pump 36 via the pipe 51, passes through the pipe 52, and is separated. It is further cooled by the radiator 38.

The resistance water that has passed through the radiator 38 is sent to a filtration device 39 via a pipe 53, and is filtered by the filtration device 39 to be high-purity resistance water.

The filtered resistance water passes through the pipes 54, 55 and 48 and is sent from the introduction pipe 11 into the energization tank 1.

As described above, according to the present embodiment, the test can be performed satisfactorily even with a small amount of the resistance water 2 in the energizing tank 1.
Can be downsized, and as a result, it is easy to transport and assemble, so even if the private generator is installed in the top floor of a high-rise building, the test can be easily performed.

In addition, since the movable insulator 4 is provided in the energization tank 1 so as to make the energization amount of the electrode 3 variable, the energization amount can be safely adjusted by a simple operation even during the test.

Further, the resistance water 2 is cooled by the radiator 12 and kept at a constant temperature, and is filtered by the filtration device 39 if necessary, so that the electric conductivity thereof is kept constant, so that the test can be performed in a good condition.

For example, the standard of the generator tested is 1000KVA output,
When the power factor is 0.8, the voltage is 415 V, and the current value is 642.6 A, a current of 642.6 A, which is the set value, flows constantly between the energizing tank 1 and the electrode 3.

Further, since the resistance water 2 can be reused without being wasted, the test can be performed economically.

[Effects of the Invention] As described above, according to the present invention, a good test can be performed even with a small amount of resistance water in the current-carrying tank.

In addition, since the movable insulator is provided in the power supply tank, the amount of power supply can be safely adjusted by a simple operation even during the test.

Furthermore, the resistance water can be reused, so that the test can be economically performed.

Further, with the test apparatus according to the present invention, there is no risk of foreign matter entering the inside of the test apparatus, and sufficient measures for crime prevention are taken, and it is possible to provide a test apparatus with sufficient noise countermeasures.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the overall configuration of a test apparatus according to the present invention, FIG. 2 is a schematic diagram showing the configuration of a radiator portion, FIG. 3 is a schematic diagram showing the configuration of a shutter plate, and FIG. 4 is a schematic diagram showing the radiator portion. Schematic diagrams showing the configuration, FIGS. 5 and 6 are schematic diagrams showing the configuration of the shutter plate, FIG. 7 is a front view showing the configuration of the insulator, and FIG. 8 is a sectional view taken along the line I-I of FIG. Fig. 9 is a piping diagram showing the details of the flow path of resistance water, Figs. 10 and 11 are piping diagrams explaining the action of resistance water flowing through the flow path, and Fig. 12 is a schematic view showing a conventional example, Is. 1 ... energizing tank 2 ... resistance water 3 ... electrode 4 ... insulator 5 ... support rod 6 ... protective plate 7 ... insulating member 8 ... support member 9 ... lifting device 10 ... drain pipe 11 …… Introduction pipe 12 …… Radiator 13 …… Fan 14 …… Shutter plate 15 …… Rotating shaft 16 …… Motor 17 …… Spray pipe 18 …… Injection nozzle 19 …… Tank 20 …… Pipe 21 …… Stopper 22 ...... Ballast 23 …… Link 24 …… Nut member 25 …… Screw rod 26 …… Motor 28 …… Drive gear 29 …… Intermediate gear 30 …… Driven gear 31 …… Cover 32 …… Inner tube 33 …… Outer tube 34 …… Opening 35 …… Water tank 36 …… Pump 37 …… Pump 38 …… Radiator 39 …… Filtration device 40 …… Switching valve 41 …… Switching valve 42 …… Switching valve 43 …… Switching valve 44 …… Changeover valve 45 …… Changeover valve 46 …… Tube 47 …… Tube 48 …… Tube 49 …… Tube 50 …… Tube 51 …… Tube 52 …… Tube 53 …… Tube 54 …… Tube 55 …… Tube 56 …… Intake pipe 57 ... Intake pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-62-124474 (JP, A) JP-A-53-133754 (JP, A) JP-A-64-47976 (JP, A) JP-A-2- 55964 (JP, A) Japanese Utility Model 1-180319 (JP, U) Japanese Utility Model 63-113849 (JP, U)

Claims (1)

(57) [Claims] 1. A substantially cylindrical energization tank (1) filled with a resistance liquid (2), and a private generator etc. to be tested which is arranged in the three energization tanks (1). Three main electrodes that receive power (3)
And a movable member that is interposed between the main electrode (3) and the energization tank (1) so as to cover the main electrode (3), and that adjusts the amount of energization from the main electrode (3) to the energization tank (1). In order to reuse the insulator (4) and the resistance liquid (2) in the energization tank (1),
In a test device such as a private power generator, which has a piping system for circulation that cools or filters this and returns it to the energization tank (1) again, a radiator (12) which is a part of the piping system for circulation. To the back side of the shutter plate (1) consisting of multiple blades (14a)
4) is attached, and the shutter plate (14) is configured such that each wing plate (14a) is rotatable about a substantially intermediate portion thereof, and each width direction end portion thereof is abuttable, and Each feather board (14
Sound-proof material is attached to a), and it is constructed like a louver when expanded and a shutter when closed, and collects water droplets adhering to the shutter plate (14) below the shutter plate (14). A tank (19) is provided, and a rotatably movable screw rod (25) is vertically installed on one side of the wing plate (14a) in the longitudinal direction, and the screw rod (25) is screwed into the screw rod (25). , The nut members (24) movable in the axial direction of the screw rod (25) are provided adjacent to the plurality of blades (14a) in the same number as the blades (14a), and the nut members (24) And the wing plate (14a) is linked (23)
A test device for a private generator or the like, characterized in that the blade (14a) can be opened and closed by being connected via a nut member (24).