JPS5849005Y2 - Fluid heating device - Google Patents

Description

[Detailed description of the invention] This invention relates to a fluid heat generating device that stirs a fluid such as water to convert rotational energy into thermal energy and extracts the fluid heated by this thermal energy. The thrust force applied to the main shaft by the power source is offset by the thrust force generated when the rotor rotates.

The purpose of this invention is a fluid heat generating system in which the rotor is arranged so that the thrust applied to the main shaft when the main shaft is rotated by a windmill or axial water turbine is offset by the thrust generated when the rotor attached to the main shaft is rotated. The object of the present invention is to provide a device to reduce the load in the thrust direction applied to a bearing supporting a main shaft, etc.

This invention will be described in detail below with reference to an illustrated embodiment.

In the figure, 1 is the main body of this device, and the front case 1a
and a rear case 1b, and blades 2a of the stator 2 are provided to protrude radially inside the front case 1a.

Reference numeral 3 denotes a main shaft rotatably supported by the front case 1a via a bearing 4, one end of which protrudes from the front case 1a, and a power source (not shown) such as a windmill or an axial water turbine is connected to the tip. ing.

Further, the center portion of a rotor 5 provided between the stator 2 and the rear case 1b is fixed to the other end of the main shaft 3, and the other end of the main shaft 3 is fixed to a plain bearing 6.
It is supported by the rear case 1b via.

On the other hand, the rotor 5 is opposed to the blades 2a of the stator 2 with a gap between them, and a torus-like flow path 7 is formed between the two. The fluid flowing into the annular groove 1d from the inlet passage 1C flows through the large number of small holes 1 provided along the annular groove 1d.
It is designed to flow in from e.

The fluid flowing into the flow path 7 from each small hole 1e circulates through the flow path 7 as the rotor 5 rotates, and flows out into the rear case 1b through the gap between the stator 2 and rotor 5 due to centrifugal force. The fluid that has flowed out into the rear case 1b is discharged from an outlet 8 formed on the outer periphery of the carrier case 1b.

Also, between the rotor 5 and the front case 1a, the main shaft 3
A mechanical seal 9 is provided in a liquid-tight manner.

This mechanical seal 9 is biased toward the front case 1a side by a compression spring 10, and a seal portion 9b is pressed against a seal ring 9a provided on the front case 1a side. The main shaft 3 is sealed between the seal rings 9a, and a gap 11 is provided between the seal ring 9b and the bearing 4 to prevent lubricant supplied to the bearing 4 from entering the flow path side. There is.

Note that 12 is a drain hole for draining fluid leaked from the mechanical seal 9 into the gap 11.

This idea has been described in detail above, so while rotating the main shaft 3 with a power source such as a windmill or an axial water turbine (not shown),
When fluid such as water is injected into the channel 7 from the inlet 1C,
The fluid accelerated by the rotor 5 flows in the flow path 7 toward the stator 2 side as indicated by the arrow a, and collides with the blades 2a of the stator 2.

This collision converts the rotational energy of the rotor into thermal energy and heats the fluid.

The heated fluid is moved by centrifugal force to the stator 2 and rotor 5.
Since it flows out into the rear case 1b through the gap and is further discharged from the outflow port 8, rotational energy can be efficiently extracted as thermal energy.

In addition, the thrust in the direction of the stator 5 that is applied to the main shaft 3 due to the attraction between the stator 2 and the rotor 5 as the rotor 5 rotates is mutually equal to the thrust that is applied to the main shaft 3 when a power source such as a windmill or water turbine rotates under fluid pressure. Therefore, there is no risk of the rotor 5 approaching the stator 2 and interfering with each other due to the thrust caused by the rotation of the rotor 5, and the thrust applied to the main shaft 3 is reduced, so the main shaft 3 is supported. Bearing 4
The load in the thrust direction can also be reduced, thereby further improving the durability of the bearing.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and FIG. 1 is a longitudinal sectional view;
FIG. 2 is a sectional view taken along line II--II in FIG. 1. 1a is a front case, 1b is a rear case, 1C is an inlet, 1d is an annular groove, 1e is a small hole, 2 is a stator, 3 is a main shaft, 4 and 6 are bearings, 5 is a rotor, 7 is a flow path, 9 is a mechanical Seal, 11 is a gap.

Claims (1)

[Scope of utility model registration request] Between a front case 1a having a stator 2 and a case 1b attached to the front case 1a, a rotor 5 forming a lath-shaped flow path 7 with the stator 2 is arranged to face the stator 2. The rotor 5 is connected to the front case 1a and the rear case 1 by bearings 4 and 6.
The other end of the main shaft 3 protrudes forward of the front case 1a, and a power source such as a windmill is connected to the tip. The fluid injected into the stator 2 is accelerated by the rotor 5.
A fluid-type heat generating device that converts rotational energy into thermal energy by colliding with the fluid.