JPH03253772A - Fluid machine - Google Patents

Abstract

PURPOSE:To simplify the structure of a fluid machine useful for pumping and miniaturize it by integrating a motor and an impeller rotated by its rotation via a shaft, and arranging it in a passage. CONSTITUTION:A motor is provided in a casing 1 fixed on a wall face 9 by a fixed pillar 8 as the power to rotate an impeller 7, and a motor rotor 5 is rotated by the action of a motor stator 4 receiving electricity from a power source 2 via a cable 3. The rotation of the motor rotor 5 is transferred to the impeller 5 via a shaft 6 to rotate it. Since a screw or a pump impeller is used for the impeller 7, a fluid can be extruded in one direction according to the rotating direction of the impeller 7, and the pumping function of a pump is obtained. The power source 2 may be stored in the casing 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an integral structure of seven impellers of drive sources in a fluid conveying device.

[Conventional technology]

As described in Japanese Patent Application Laid-Open No. 62-258185, a conventional device has a pump drive flow path outside the flow path, rotates a water turbine blade, and uses this rotational force as a driving force to rotate the pump blade. water was being pumped.

Also, as published in Coronasha's "Fluid Machinery" p55,
In an axial flow pump in which the main shaft of the pump and the fluid flow direction are the same, the motor serving as the driving source is provided outside the flow path, that is, outside the piping.

[Means to solve the problem]

In order to achieve the above object, the impeller driving motor and the impeller were made into an integral structure and installed directly in the flow path.

Additionally, if necessary, a driving power source was also incorporated into the integrated structure.

Additionally, for use as both a pump and a generator,
When used as a pump, the motor was used as an impeller driving motor, and when used as a generator, the motor was used as a generator.

When used in high-temperature or low-temperature fluids, cooling and heating functions are provided.

To improve efficiency, the impeller blade angle 9 rotation speed 9
The direction of the machine body is variable.

In order to achieve high performance and reliability, we used a motor that can operate without being directly connected to a power source, an impeller made of ceramic, and a power supply with a power storage function.

[Problem to be solved by the invention]

The above-mentioned conventional technology has a problem in that the entire device becomes large because the driving source is provided at a position different from the flow path. For example, in Japanese Unexamined Patent Publication No. 62-258185, water turbine blades and a flow path for driving the pump must be provided, and in the case of a "fluid machine" axial flow pump, a motor is provided outside the piping, which makes it easier to downsize the device. It becomes a bottleneck. Furthermore, since the shaft of an axial flow pump is long, it is necessary to provide several bearings in the flow path to prevent vibration.

An object of the present invention is to provide a pump that can be easily installed at any location by simplifying the pump structure and reducing its size.

Another object of the present invention is to provide a fluid machine that can be used under fluid conditions at any temperature by having cooling and heating functions.

[Effect]

By integrating the motor and power supply, the shaft can be shortened, making the device simpler and smaller.

Furthermore, if the motor is rotated by a power source, the impeller can be used as a pump blade, resulting in a pump capable of pumping water. On the other hand, if the impeller is rotated by the water flow, the motor becomes a generator and it becomes possible to generate electricity.

The cooling and heating functions maintain each component in the fluid machine in optimal operating conditions to achieve good operation.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. Second
The figure shows a fluid machine according to the present invention installed in a flow path surrounded by a wall surface 9. This fluid machine has a motor as a power for rotating an impeller 7 in a casing 1 fixed to a wall surface 9 by a fixed column 8, and a motor stator 4 is connected to a cable 3.
Electricity is obtained from the power source 2 via the motor to rotate the motor rotor 5.

The rotation of the motor rotor 5 is transmitted to the impeller 7 via the shaft 6, causing the impeller 7 to rotate. If a screw or a pump impeller is used for the impeller 7, the fluid will be pushed out in one direction depending on the rotation direction of the impeller. This makes it possible to pump water and has the performance of a pump. In the case of Fig. 2, the power supply 2 is installed outside the flow path separately from the main body of the machine.
This is a method of sending electricity to the motor through the cable 3 inside the fixed column 8.

FIG. 3 shows a fluid machine of the present invention of a type in which a power source 2 is housed within the main body. In recent years, battery performance has improved, and compact and powerful batteries have been developed, but if these batteries are integrated into the main unit as power source 2, there is no need to install equipment such as a power source outside the flow path, and the device The overall size becomes smaller and the fluid machine can be installed at any location.

In the types shown in FIGS. 2 and 3 above, since the motor and power source 2 are housed in the casing 1 and installed in the fluid, the fluid also acts as a coolant and can remove heat from the entire device. Further, since the shirt 6 can be shortened, the number of bearings can be reduced, and heat loss due to frictional heat or the like can be reduced.

Furthermore, the integrated structure, short shaft, and compact, high-performance power supply 2 and motor make the entire device more compact, allowing it to be installed in any location or used as a portable device. can be considered and can be applied in many fields.

FIG. 1 is a diagram showing the configuration of this apparatus when used in high-temperature or low-temperature fluids. For example, when using in a high temperature fluid, the fluid cannot be used as a coolant, so the power source 2. The motor is housed in a cover 10, and the motor and power source are cooled by a coolant circulating in the casing l from a coolant circulator 11 through a circulation pipe 12.

As mentioned above, this fluid machine can be made small, can be used in any location, and can be used under any conditions (
It can be used even at high temperature or room temperature.

The figures from FIG. 4 onwards are examples used in actual products.

FIG. 4 shows an example in which the present invention is applied to a hose used for business or home use. If the end of the hose 14 is submerged in the water tank 15 and the present invention is installed in the water tank 15 or in the intermediate part of the hose 14, the water tank 1
The water in 5 can be injected from the nozzle 16, ie the fluid in the tank can be transferred to another.

Figure 5 shows an example of use in pumped storage power generation. Figure 1.

In the present invention shown in FIGS. 2 and 3, if the motor is also used as a generator, pumped storage power generation becomes possible.

That is, the fluid machine 20 of the present invention is used as a pump using surplus power to pump water on the water outlet 9 to the second water tank 17 through the penstock 18. On the other hand, when generating electricity, the motor shown in FIG. 1 is used as a generator to generate electricity. That is, water is flowed from the water tank 17 to the discharge channel 19, and the potential energy of the water is used to drive the impeller of the fluid machine 20 (the impeller 7 in FIG. 1).
Rotate. The rotation of the impeller 7 is transmitted through the shaft 6 and forces the motor rotor to rotate. As a result, the electricity generated by the motor stator 4 is transmitted to the outside through the cable 3.

In the case of pumped storage power generation shown in Figure 5, electricity is sent to the outside, but if the power source 2 in Figures 2 and 3 has a power storage function, the generated electricity can be stored. By supplying power to the motor when necessary, it is possible to easily use the functions of both a generator and a pump.

FIG. 6 shows a cartridge type fluid machine using the present invention. A fluid machine 20 fixed by a fixing column 8 is installed inside a pipe 21 having a flange 22. This flanged piping can be installed at any location and used as a pump or generator depending on the purpose.

In the above-mentioned device, a rotating portion is provided, but other portions are in a fixed state. As typified by the water pump shown in FIG. 5, in the present invention, the direction of the water flow changes depending on the application, and it is conceivable that the water flow may flow from the casing side at some times and from the impeller side at other times. For fluid machines, it is desirable to always have the same flow direction in consideration of efficiency and the like. In order to achieve this, by improving the method of fixing the fixed column and casing as shown in the construction drawing, and the method of fixing the fixed column and wall surface, it will be possible to always face the direction of the mainstream like a weather vane. For example, in FIG. 1, if the casing is made horizontally rotatable around the fixed column, it can follow horizontal changes in the mainstream direction.

Furthermore, efficiency can be expected to improve if the impeller blade angle and blade rotation speed are varied according to each application, rather than changing the direction of the entire pump.

In the future, we will be able to connect the power supply and pump without using cables, etc.
If technology for transmitting electricity from a remote location using electromagnetic waves or the like is established, it will be possible to create fluid machines that do not have a power source nearby or in an integrated structure. Furthermore, if the impeller and other parts are made of highly corrosion-resistant materials such as ceramics, the fluid machine will be highly reliable.

〔Effect of the invention〕

According to the present invention, the structure is simple and can be miniaturized, so it can be installed at any location and can also be used as a portable device.

Regarding equipment cooling, fluid can be used as a coolant because power sources, motors, etc. are installed in the flow path, and if further cooling or heating is required depending on fluid conditions, various functions can be added by adding the necessary functions. It can be used under the following conditions.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a fluid machine according to an embodiment of the present invention, Figs. 2 and 3 are longitudinal cross-sectional views of other embodiments of the present invention, and Fig. 4 is a longitudinal cross-sectional view of a fluid machine according to an embodiment of the present invention. FIG. 5 is an explanatory diagram of an application example in which the present invention is used for pumped storage power generation, and FIG. 6 is an explanatory diagram of an example of a cartridge type fluid machine. Engineering...Casing, 2...Power supply, 3...Cable,
4. Motor stator, 5. Motor rotor, 6.. Shaft, gruel 1.

Claims (1)

[Scope of Claims] 1. A rotating machine comprising a power source, a motor rotated by electricity from the power source, a shaft transmitting the rotation of the motor, and an impeller operated by the rotation of the shaft, comprising: A fluid machine characterized in that the shaft and the impeller, or the power source, the motor, the shaft, and the impeller are integrated and installed in a flow path. 2. The fluid machine according to claim 1, which has a function of cooling a mechanical heat generating part or heating a mechanical low temperature part.