JPH10176648A - Pelton turbine equipment - Google Patents

Abstract

(57) [Summary] [Problem] To provide a Pelton turbine device provided with a sound insulation device that does not change the sound insulation effect over time. A Pelton turbine device 1 is different from a conventional example.
The sound insulation device 2 for suppressing the propagation of noise by the water flow curtain 29 is provided. The water 31 used for forming the water flow curtain 29 is supplied from the appropriate water source such as high-pressure water used for driving the turbine runner and water used for driving the turbine runner to the sound insulation device 2 through the pipe 3. Supplied. In the case of the Pelton turbine device 1, the sound insulation device 2 is installed along the inlet 96 a of the water discharge channel 96, but the outlet 96 b of the water discharge channel 96 and the outlet 96 a to the outlet 9 a.
6b can be installed at an appropriate place.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical shaft type or horizontal axis type Pelton water turbine device provided with a sound insulation device for suppressing the propagation of generated noise to the outside, and the durability of the sound insulation device. And an improved configuration for improving the above.

[0002]

2. Description of the Related Art As well known, various types of water turbine devices are used as a water turbine device for a hydroelectric power generation device. Of these, the Pelton turbine device has a high head. It has been adopted as a water turbine device. This Pelton turbine device is configured such that a turbine runner provided is rotated in a space where air and water are mixed,
This is different from other types of turbines such as the Francis turbine and the Kaplan turbine.

A general example of a Pelton turbine will be described with reference to FIGS. 7 to 10. FIG. FIG. 7 is a cross-sectional view schematically showing a vertical shaft type Pelton turbine device of a general example operated under a high load state, and FIG. 8 is a horizontal axis type general example of a general example operated under a high load state. FIG. 2 is a cross-sectional view schematically illustrating the Pelton turbine device of FIG. FIG. 9 is a cross-sectional view schematically showing a vertical shaft type Pelton turbine device of a general example operated in a light load state, and FIG. 10 is a side view of the general example operated in a light load state. It is the sectional view which shows the axial type Pelton turbine device typically.

First, in FIGS. 7 and 9, reference numeral 9 denotes a water turbine runner 91 having a plurality of runner buckets 92 radially mounted along the outer peripheral surface thereof, a water turbine shaft 93, a nozzle 94, and a water turbine housing 95. And a water discharge passage 96. The water wheel axle 93 is rotatably supported by a water wheel housing 95 with the center axis thereof being in the vertical direction, and the water wheel runner 91 is mounted so that its rotation center position matches the center axis of the water wheel axle 93. The nozzle 94 is a device for jetting high-pressure water 81 for driving the water turbine runner 91 toward the runner bucket 92. The water turbine housing 95 rotatably supports the water turbine shaft 93, and has a nozzle 94 mounted along the periphery of the water turbine runner 91, and is provided so as to cover the water turbine runner 91.

A water discharge passage 96 is connected to a water turbine housing 95 and discharges water 83 used for driving a water turbine runner 91 to the outside of the Pelton turbine device 9. The outlet is connected to an appropriate discharge destination (generally a river or a regulating pond). The high-pressure water 81 jetted from the nozzle 94 toward the runner bucket 92 of the water turbine runner 91 collides with the runner bucket 92 to give energy to the water turbine runner 91, and then becomes scattered water 82, and is scattered from the runner bucket 92. Be splattered. The scattered water 82 can be roughly classified into a scattered water 82A and a scattered water 82B. Splashed water 82A
The scattered water is scattered water that scatters from the runner bucket 92 to the inner wall surface of the water turbine housing 95 and then flows down along the inner wall surface.

The scattered water 82B is scattered water scattered downward from the runner bucket 92 in the scattered water 82. Note that the splash water 82A and the splash water 82B are collectively referred to as the splash water 82 hereinafter. Then, as the output of the Pelton turbine 9 increases, the amount of high-pressure water 81 squirted increases.
A will be increased, but the Pelton turbine 9
Is low, almost all of the scattered water 82 is occupied by the scattered water 82B. The water 83 is water generated in the water turbine housing 95 by the splash water 82.

Next, the horizontal axis type Pelton turbine will be described with reference to FIGS. 8 and 10. FIG. 8 and 10, the same parts as those in the case of the vertical shaft type Pelton turbine shown in FIGS. 7 and 9 are denoted by the same reference numerals, and description thereof will be omitted. 8 and 10, reference numeral 7 denotes a water turbine runner 91;
A water wheel axle 73, a nozzle 94, a water wheel housing 75,
This is a horizontal axis Pelton turbine device having a water discharge channel 96.

A water wheel shaft 73 provided in the Pelton water turbine device 7
The horizontal axis of the water turbine housing 7
5 and is rotatably supported, and a water wheel runner 91 is mounted so that its rotation center position coincides with the center axis of the water wheel shaft. The water turbine housing 75 rotatably supports the water wheel axle, and has the nozzle 94 mounted along the periphery of the water wheel runner 91, and is disposed so as to cover the water wheel runner 91.

In the Pelton turbine devices 7 and 9 described above, the turbine runner 91 is installed in a portion that rotates in a space where air and water are mixed, as is apparent from the figure. With the installation configuration of the water turbine runner 91, in the case of the Pelton water turbine devices 7 and 9, noise of a kind called so-called wind noise generated by the high speed rotation of the water turbine runner 91 in the air. Is unavoidable. Also, Pelton turbines 7, 9
In this case, the water 83 used for driving the water turbine runner 91 is discharged to the above-mentioned discharge destination outside the Pelton turbine devices 7 and 9 via a water discharge channel 96.

The water discharge channel 96 is provided with the Pelton turbine device 7,
9 is a communication passage for communicating the internal space of the 9 with the outside of the Pelton turbine devices 7, 9;
There is a possibility that noise peculiar to is transmitted to the outside of the Pelton turbine devices 7, 9 via the water discharge channel 96. Nevertheless, when the Pelton turbine devices 7, 9 are operated under a relatively high load condition, the propagation of the noise to the outside of the Pelton turbine devices 7, 9 is suppressed.
The reason is that, in this state, as illustrated in FIGS. 7 and 9, the opening of the water discharge passage 96 at the entrance 96 a is closed by the scattered water 82 </ b> A.
This is because A has a function of suppressing the propagation of noise.

However, when the Pelton turbines 7, 9 are operated under a relatively low load condition, as shown in FIG. 8 and FIG. No part is blocked. In such an operating state, the noise is generated by the discharge channel 96.
And transmitted to the outside of the Pelton water turbine devices 7 and 9, and as it is, a noise problem as a kind of pollution is caused. Therefore, in the conventional Pelton turbine apparatus, even when the apparatus is operated in a no-load state, the installation of the sound insulation device is indispensable in order to suppress the transmission of the noise to the outside. In the conventional Pelton turbine device provided with the sound insulating device for such a reason, the sound insulating device is made of a highly flexible rubber plate or sheet, and the opening of the water discharge channel 96 is used. It is trying to close the part.

[0012]

In the Pelton turbine device according to the prior art described above, the propagation of the generated noise to the outside is suppressed by the sound insulation device, so that the Pelton turbine does not cause any noise-related problems. The water turbine device can be operated under an appropriate load condition. However, conventional sound insulation devices for Pelton turbines, which use rubber plates, etc., use a well-known material that has a known aging characteristic. Maintenance and inspection work is required, and improvement of this is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a Pelton turbine having a sound insulating device that does not change over time in the sound insulating effect.

[0014]

According to the present invention, there are provided the following objects: 1) a turbine runner; a nozzle for jetting high-pressure water for rotating the turbine runner toward the turbine runner; a nozzle holding the nozzle; A water turbine housing disposed over the water turbine, a water discharge channel connected to the water turbine housing to discharge water used for driving the water turbine runner, and propagation of noise generated from the water turbine device to the outside of the water turbine device In the Pelton turbine device provided with a sound insulating device for suppressing the noise, the sound insulating device suppresses the propagation of noise from the internal space of the water turbine housing to the outside by using a water flow curtain formed using a water flow. Or 2) In the means described in the above item 1, the water used for forming the water curtain by the sound insulating device is a high water used for driving the water turbine runner. (3) In the means described in the above (1), the water used for forming the water curtain by the sound insulation device is used for driving the water turbine runner, and then the water turbine housing is used. And / or 4) In the means described in the above item 1, the sound insulation device is used for driving the water turbine runner and scattered from the water turbine runner. The water used for forming the water current curtain by the sound insulation device is provided by using a water collected by the water collector.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. In the following description of this section, the same parts as those of the Pelton turbine device of the general example shown in FIGS. 7 to 10 are denoted by the same reference numerals, and the description thereof will be omitted.
Further, in the drawings used in the following description of this section, only reference numerals shown in FIGS. 7 to 10 are represented as much as possible.

FIG. 1 is a cross-sectional view schematically showing a case where a vertical shaft type Pelton turbine according to an embodiment of the present invention is operated under a low load state, and FIG. It is a perspective view of the sound insulation device shown in FIG. 1 and 2, reference numeral 1 denotes a vertical shaft type Pelton turbine in which a sound insulation device 2 is added to the vertical shaft type Pelton turbine 9 according to the general example shown in FIGS. 7 and 9. is there. Although FIG. 1 shows that the discharge destination 19 of the water 83 is a regulating pond, as described above, a case where the discharge destination is a river or the like is also known. In the Pelton water turbine device 1, the sound insulation device 2 is installed along the entrance 96 a of the water discharge channel 96.

The sound insulation device 2 is a device for suppressing the propagation of noise by a water flow curtain 29 formed by water 31. Generally, the fact that the water curtain has the function of suppressing the propagation of noise has been confirmed, for example, in an experiment using a model turbine as an increase or decrease in the noise generation amount corresponding to the presence / absence of the above-mentioned scattered water 82A. The present invention positively applies the noise propagation suppressing function of the water flow curtain to the sound insulation device of the Pelton turbine.

Further, in this case, the sound insulating device 2 is constituted by combining plate members in a rectangular parallelepiped shape, and has an opening at its bottom surface for ejecting the water curtain 29 as shown in FIG. 21 are formed. Opening 21
Is set to such a size that the water flow curtain 29 formed by the sound insulation device 2 can reliably close the inlet 96 a of the water discharge channel 96. Water 31 for forming the water curtain 29 is supplied from a suitable water source to the sound insulation device 2 via the pipe 3.

The Pelton turbine device 1 according to an embodiment of the present invention shown in FIGS. 1 and 2 has the above-described structure, and is peculiar to the Pelton turbine device caused by the high speed rotation of the turbine runner 91 in the air. The above-mentioned noise is suppressed by the water flow curtain 29 from being propagated thereafter. Then, the water current curtain 29 is provided with the scattered water 82A described above.
Unlike the case (1), the load condition of the Pelton turbine device 1 is not directly affected. Therefore, the sound insulation device 2
The function of suppressing noise propagation due to the above is maintained constant regardless of the load state of the Pelton turbine device 1. The water current curtain 29 has no change in the noise propagation suppressing function even when the water level of the water 83 fluctuates, and unlike the rubber material used for the sound insulation device for the Pelton turbine device according to the prior art, the secular change. Since it does not exist, its sound insulation effect can be obtained stably over a long period of time.

In the above description of the embodiment of the invention, the description has been given of a vertical shaft type Pelton turbine as the Pelton turbine. However, for example, a horizontal axis type Pelton turbine is used. Can of course be applied similarly. In the description of the embodiments of the present invention, the Pelton turbine (for example,
The sound insulation device (for example, the sound insulation device 2) provided in the Pelton turbine device 1) is provided with a water discharge channel (for example, the water discharge channel 9).
6) (for example, the entrance 96a), but is not limited to this. The sound insulation device is provided at an appropriate location if it is installed in an opening to the outside of the water turbine housing (for example, the water turbine housing 95), for example, from the internal space to the outside of the Pelton turbine device connected to the water discharge channel. Can be installed in That is, the sound insulation device is, for example, an outlet 96b for water in the water discharge channel (for example, the water 83), or
It can be installed at an appropriate place between the entrance and the exit of the water discharge channel.

In the above description of the embodiment of the invention, the water source (for example, the water 31) for the water curtain (for example, the water curtain 29) is specifically described. However, this water source includes, for example, water flowing in a water discharge channel, water at a discharge destination (for example, discharge destination 19), high-pressure water supplied to a Pelton turbine device, and a bottom portion in a water turbine housing. Certain water, scattered water (for example, the scattered water 82B which is present even when the Pelton turbine device is operated at a light load) and the like can be appropriately used.

Of these various types of water sources, the use of high-pressure water supplied to a Pelton turbine device requires a pipe length shorter than the case of using water flowing in a water discharge channel or water at a discharge destination. This is advantageous because it can be shortened. In addition, pumping the water at the bottom in the water turbine housing and using the high-pressure water supplied to the Pelton turbine device makes it possible to use water that has finished using energy, thereby reducing the pipe length. The utilization efficiency of the high-pressure water can be improved while maintaining the advantage of shortening. further,
The use of splashed water makes it possible to eliminate the need for a pump for pumping water while maintaining the advantages of shortening the pipe length and improving the efficiency of using high-pressure water. It can be reduced.

[0023]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the following description of this section, the same as the Pelton turbine device of the embodiment of the present invention shown in FIGS. 1 and 2 and the Pelton turbine device of the general example shown in FIGS. Portions are denoted by the same reference numerals, and description thereof will be omitted. In addition, in the drawings used in the following description of this section, only reference numerals shown in FIG. 1, FIG. 2, and FIG. 7 to FIG.

Embodiment 1 FIG. 3 schematically shows a case where a vertical shaft type Pelton turbine according to an embodiment of the present invention corresponding to claims 1 and 2 is operated under a low load state together with peripheral devices. It is sectional drawing. In FIG. 3, 1A is
In the vertical shaft type Pelton water turbine device 1 according to the embodiment of the present invention shown in FIG. 1, high-pressure water 8 is used as a water source of water 31 for forming the water flow curtain 29 in the sound insulation device 2.
This is a vertical shaft type Pelton turbine device which is obtained by branching a part of the high-pressure water 81 from a hydraulic pipe 6 for supplying the water. Therefore, in the Pelton turbine device 1A, the piping 3
Is connected to the hydraulic pipe 6 at the end opposite to the end connected to the sound insulation device 2.

By the way, in the Pelton turbine apparatus 1A, using the high pressure value of the high-pressure water 81 as it is as the water source for the water 31 is wasteful because the pressure value is too high for forming the water flow curtain 29. In some cases, it is preferable to use the energy of the high-pressure water 81 as much as possible to drive the runner 91. For this purpose, the Pelton turbine device 1A is connected to the pressure reducer 61 in the middle of the pipe line 3. For the pressure reducer 61, for example, an appropriate valve device or orifice can be used.

Since the vertical shaft type Pelton turbine device 1A according to the first embodiment has the above-described structure, the Pelton turbine device 1A obtains the sound insulation effect of the water flow curtain 29 as described in the embodiment of the invention. In addition to the above, the water 31 for the water curtain 29 can be obtained by the short pipe line 3 when water flowing in the water discharge channel or water at the discharge destination is used.

Embodiment 2 FIG. 4 schematically shows a case where a horizontal axis type Pelton turbine according to an embodiment of the present invention corresponding to claims 1 and 2 is operated under a low load state together with peripheral devices. FIG. 4, the same parts as those of the vertical shaft type Pelton turbine device according to the present invention corresponding to the first and second aspects shown in FIG. 3 are denoted by the same reference numerals, and the description thereof will be omitted. In FIG. 4, 1B additionally includes a sound insulation device 2 in addition to the horizontal axis type Pelton turbine device 7 according to the general example shown in FIGS. 8 and 10, and forms the water curtain 29 in the sound insulation device 2. This is a horizontal-axis Pelton turbine device that is obtained by branching a part of the high-pressure water 81 from a hydraulic pipe 6 that supplies the high-pressure water 81 as a water source of the water 31 to be performed.

Since the horizontal axis type Pelton turbine device 1B according to the second embodiment has the above-described configuration, as described in the section of the embodiment of the invention, the Pelton turbine device 1B reduces the sound insulation effect of the water flow curtain 29. And the water 3 for the water curtain 29
1 can be obtained. Embodiment 3 FIG. 5 is a cross-sectional view schematically showing a case where a vertical shaft type Pelton turbine according to an embodiment of the present invention corresponding to claims 1 and 3 is operated under a low load state. In FIG. 5, reference numeral 1C denotes a water turbine housing as a water source of water 31 for forming a water flow curtain 29 in the sound insulation device 2 with respect to the vertical shaft type Pelton water turbine device 1 according to the embodiment of the present invention shown in FIG. This is a vertical Pelton turbine device that is obtained from water 83 retained in a liquid turbine 95.

Therefore, in the Pelton turbine device 1C,
The pipe path 3 is configured such that an end 3 a opposite to the end connected to the sound insulation device 2 opens into the water 83.
Further, in the Pelton turbine device 1C, the water 83
After pumping up, the sound curtain 2
An appropriate well-known pump device 4 is connected in the middle of the piping 3 in order to cause the gas to be ejected as 9.

Since the vertical shaft type Pelton water turbine device 1C according to the third embodiment has the above-described configuration, as described in the section of the embodiment of the present invention, the Pelton water turbine device 1C obtains the sound insulation effect of the water flow curtain 29. In addition to being able to use the water 83 that has finished using energy, the utilization efficiency of the high-pressure water 81 can be improved while maintaining the advantage that the length of the piping 3 can be reduced.

Fourth Embodiment FIG. 6 is a cross-sectional view schematically showing a case where a vertical shaft type Pelton turbine according to one embodiment of the present invention is operated under a low load condition. It is. In FIG. 6, 1D denotes a water wheel runner as a water source of water 31 for forming a water flow curtain 29 in the sound insulation device 2 with respect to the vertical shaft type Pelton water turbine device 1 according to the embodiment of the present invention shown in FIG. This is a vertical Pelton turbine apparatus that uses the scattered water 82B scattered from 91.

Therefore, in the Pelton turbine device 1D,
A water collecting body 5 for collecting splashed water 82B is provided below the water turbine runner 91. The water collecting body 5 has a bottom flat surface 5a formed with a substantially uniform gradient that descends toward the sound insulation device 2, and has a bottom flat surface 5
A bank is formed to prevent the scattered water 82B collected in a from flowing out of this portion. The scattered water 82B collected by the water collecting body 5 flows out from an end 5b which is a right end portion of the water collecting body 5 toward the paper surface in FIG. A water conduit 51 having a length is arranged.

The conduit 3 is connected to the bottom of one end of the water conduit 51, and the conduit 51 is connected to the conduit 3.
So that one end side where is connected is the lowest,
They are arranged with a substantially uniform gradient. The scattered water 82B that has flowed out from the end 5b of the water collecting body 5 is collected in the piping 3 by the water guiding gutter 51. Thus, in the Pelton turbine device 1D, the water 31 is obtained by collecting the splash water 82B.

The vertical shaft type Pelton turbine device 1D according to the fourth embodiment has the above-described configuration. Therefore, as described in the section of the embodiment of the invention, the Pelton turbine device 1D obtains the sound insulation effect of the water flow curtain 29. And the pump device 4 in the third embodiment can be eliminated while maintaining the advantages of shortening the length of the pipe line 3 and improving the use efficiency of the high-pressure water 81, and thus the auxiliary equipment of the Pelton turbine device 1D Thus, the power consumption can be reduced.

In the description so far in the fourth embodiment, the device for obtaining the water source of the water 31 provided in the Pelton water turbine device 1D has been described as being composed of the water collecting body 5 and the water guiding gutter 51, but is not limited to this. Instead, for example, the water collecting body may have a configuration having both functions of the water collecting body 5 and the water guiding gutter 51. This makes it possible to consolidate the devices for obtaining the water source of the water 31.

Further, in the description so far in the fourth embodiment, the sound insulation device provided in the Pelton turbine device 1D has been described as receiving the supply of the water 31 through the pipeline 3, but is not limited thereto. For example, the water collecting body 5
By providing an opening for directly flowing the scattered water 82B flowing out from the end 5b, the water guiding gutter 51 and the piping 3 may be omitted. As a result, the device for obtaining the water source of the water 31 and the piping for the water 31 can be integrated.

Furthermore, in the description so far in the fourth embodiment, in the Pelton turbine device 1D, the water collecting body 5, the water guiding gutter 51, the piping path 3,
Although the sound insulation device 2 has been described as being provided, the present invention is not limited to this. For example, a structure having both functions of the water collecting body 5 and the sound insulation device 2 is provided. The formation may be performed. This makes it possible to consolidate the devices for forming the water flow curtain 29.

[0038]

The Pelton turbine apparatus according to the present invention has the following effects by adopting the configuration described in the section of the means for solving the above-mentioned problems. By adopting the configuration according to item (1) of the means for solving the above-mentioned problem, the propagation of noise peculiar to the Pelton turbine to the outside is suppressed by the water flow curtain. Has no aging.
This makes it possible to obtain the sound insulation effect stably over a long period of time. In addition, by adopting the configuration according to the item (2) of the means for solving the above-mentioned problems, the length of a piping path for obtaining water for a water curtain can be reduced. Thereby, it is possible to reduce the manufacturing cost while obtaining the effects of the above-mentioned items. In addition, by adopting the configuration according to item (3) of the means for solving the above-mentioned problems, it is possible to use water that has finished using energy as water for the water curtain.
Thus, it is possible to increase the use efficiency of the high-pressure water while obtaining the effects of the above item. Still further, by adopting the configuration according to the mode (4) of the means for solving the above-mentioned problem, a pump device is not required when using water that has finished using energy as water for a water curtain. Can be Accordingly, it is possible to reduce the power for auxiliary equipment of the Pelton turbine device while obtaining the effects described in the above items.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically illustrating a case where a vertical shaft type Pelton turbine device according to an embodiment of the present invention is operated under a low load state.

FIG. 2 is a perspective view of the sound insulation device shown in FIG.

FIG. 3 is a cross-sectional view schematically showing a case where a vertical shaft type Pelton turbine device according to an embodiment of the present invention corresponding to claims 1 and 2 is operated under a low load state together with peripheral devices.

FIG. 4 is a cross-sectional view schematically showing a case where a horizontal axis type Pelton turbine device according to an embodiment of the present invention corresponding to claims 1 and 2 is operated under a low load state together with peripheral devices.

FIG. 5 is a cross-sectional view schematically showing a case where a vertical shaft type Pelton turbine device according to one embodiment of the present invention is operated under a low load state.

FIG. 6 is a cross-sectional view schematically showing a case where the vertical shaft type Pelton turbine according to one embodiment of the present invention is operated under a low load state.

FIG. 7 is a cross-sectional view schematically showing a vertical shaft type Pelton turbine device of a general example operated under a high load state.

FIG. 8 is a cross-sectional view schematically showing a horizontal-axis Pelton turbine device of a general example operated under a high load state.

FIG. 9 is a cross-sectional view schematically showing a vertical shaft type Pelton turbine device of a general example operated under a light load state.

FIG. 10 is a cross-sectional view schematically showing a horizontal-axis Pelton turbine device of a general example operated under a light load state.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Pelton water turbine device 2 Sound insulation device 29 Water curtain 3 Pipe line 31 Water 96 Water discharge channel 96a Inlet portion 96b Outlet portion

Claims (4)

[Claims] 1. A turbine runner, a nozzle for jetting high-pressure water for rotating and driving the turbine runner toward the turbine runner, a turbine housing holding the nozzle and disposed over the turbine runner, and connected to the turbine housing. In a Pelton turbine device including a water discharge channel that discharges water used to drive the turbine runner and a sound insulation device that suppresses propagation of noise generated from the Pelton turbine device to the outside of the Pelton turbine device, The sound insulation device is a Pelton turbine device characterized in that the propagation of noise from the internal space of the water turbine housing to the outside is suppressed by using a water flow curtain formed by using a water flow. 2. The Pelton water turbine device according to claim 1, wherein the water used for forming the water curtain by the sound insulation device is obtained by branching high-pressure water used for driving a water turbine runner. Water turbine equipment. 3. The water turbine device according to claim 1, wherein the water used for forming the water curtain by the sound insulation device is water still retained in the water turbine housing after being used to drive the water turbine runner. A Pelton turbine device, comprising: 4. The Pelton water turbine device according to claim 1, wherein the sound insulation device includes a water collecting body that is used for driving the water turbine runner and collects water scattered from the water turbine runner, and the sound insulation device is used to form a water flow curtain. The Pelton turbine apparatus is characterized in that the water used is water collected by a water collecting body.