JPS62258185A - Pump device - Google Patents

Abstract

PURPOSE:To eliminate the need for a power supply for driving, by causing a hydraulic turbine runners rotating in a second flow passage to rotate pump impellers in a first flow passage. CONSTITUTION:There are provided a first flow passage 6 having an opening located upstream of a reservoir and another opening coupled with a water pumping pipe 5 and a second flow passage 7 having an opening confronting the reservoir and another opening located downstream of the reservoir. Water flows through the second flow passage 7 for rotating hydraulic turbine runners 9 and the rotating force of the runners 9 rotates pump impellers 8 for pumping water. As a result, water can be pumped without the need for a power supply, whereby pumping efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pump device, and particularly to a pump device suitable for pumping water for irrigation in a single location without a power source.

[Conventional technology]

For example, when pumping water from an irrigation pond to irrigation water located at a higher level than the irrigation pond, an electric pump is generally used to pump the water.However, when pumping water in a place where there is no power source nearby, such as in undeveloped land. In order to obtain power for the pump, a simple dam is constructed in the irrigation pond and a water wheel is installed to generate electricity, and the pump is driven by the electricity generated. That is, conventional pump devices use pumps that require a power source.

Note that related devices of this type include, for example, Japanese Patent Application Laid-Open No. 126496/1983.

[Problem that the invention seeks to solve]

The above conventional technology requires a power source for driving.

In addition, in order to obtain the power source, it is necessary to convert the energy of the water head into electrical energy using a water turbine generator, so there is a loss in power generation opportunities and the pump electric motor for the pump head, which means that the efficiency is reduced by that amount. bad.

The object of the present invention is to eliminate the need for a power source for driving.

Another object of the present invention is to provide a pump device with good pumping effect.

[Means for solving problems]

The above object includes a first flow path, a second flow path formed on the outer peripheral side of the first flow path, a pump blade that rotates within the first flow path, and a pump blade that rotates within the second flow path. a water wheel blade, the pump blade and the water wheel blade are oriented in the same direction, and
This is achieved by combining the two and configuring them to rotate as one.

[Effect]

When water flows through the second flow path, the energy of the water imparts rotational force to the water wheel blades, and the pump blades in the first flow path rotate to transfer water from irrigation ponds, etc. to irrigation water located at a higher location. Pump up to.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 is a sectional view showing a pump device according to the present invention, and FIGS. 2 and 3 are sectional views taken along ■--■ in FIG.
(2) is a sectional view, and FIG. 4 is a diagram showing an example of use of the pump device. In Fig. 4, 1 is a water pond, 2 is a weir that dams water pond 1, 3 is irrigation water located at a higher position than water reservoir 1, 4 is a pump device that pumps water from irrigation pond 1 to irrigation water 3, and 5 is the pumping pipe.

1 to 3, the pump device 4 has a first flow path 6, one opening facing the upstream side of the irrigation pond and the other opening connected to the pumping pipe 5, and a first flow path 6. A second flow path 7 is formed on the outer circumferential side of the channel 6, and one opening faces the irrigation pond and the other opening opens to the downstream side of the irrigation reservoir, and the second flow channel 7 rotates within the first flow channel 6. a pump blade 8 provided to
The pump blade 6 and the water wheel blade 7 are arranged in the same direction, and are connected to each other so that they rotate as one unit. In addition, in the figure, 10 is a casing forming the first flow path 6, 11 is a casing forming the second flow path 7,
Reference numeral 12 denotes support and guide vanes for the pump vane provided before and after the pump vane 6.

Reference numeral 13 denotes a support/guide vane for the casing 11 provided before and after the water wheel blade 7, and 14 is a seal ring provided in the casing 10 to seal the joint between the pump blade 8 and the water wheel blade 9.

Next, the operation of this embodiment will be explained.

When water flows through the second channel 7 of the pump device 4 due to the head difference (HT) between the water surface of the water pond 1 and the pump device 4, the water wheel blades 9 are rotated by the energy of the water. A pump blade 8 connected to the water wheel blade 7 rotates simultaneously with the rotation of the water wheel blade 9, generates pressure, and obtains a head (HP). In other words, the water in the irrigation pond 1 is pumped up from the first channel 6 through the pumping pipe 5 to the irrigation water 3. Now, the amount of water flowing in the second channel 7 is QT, and the amount of water flowing in the first channel 6 is Qp. Then, a linear relationship holds.

p-QP = ηP 0 η ding Hr-QT However, ηP indicates pump efficiency, and ηT indicates water turbine efficiency.

As described above, in this embodiment, water from the irrigation pond 1 can be pumped up to the irrigation water 3 without requiring a power source. Also, without converting the potential energy of the head into electrical energy.

Because it can give energy directly to water.

Pump efficiency can be improved (compared to conventional technology, efficiency can be improved by the amount of loss in the water turbine generator and pump drive motor).

Note that this embodiment shows an example of pumping water to irrigation water, but
It can also be applied when pumping water to remote locations.

〔Effect of the invention〕

As explained above, according to the present invention, a pumping action such as water pumping can be performed efficiently without requiring a driving power source.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view of a pump device according to the present invention, and FIGS.
11 sectional view and Ill-11 [sectional view, FIG. 4 is a diagram showing an example of use of the pump device.

Claims (1)

[Claims] 1. A first flow path, a second flow path formed on the outer peripheral side of the first flow path, a pump blade that rotates within the first flow path, and a water turbine blade that rotates within the second flow path. 1. A pump device comprising: the pump blade and the water wheel blade facing in the same direction, and configured so that they are connected and rotate as one unit.