JPS60116802A - Refrigerating cycle turbine - Google Patents

Abstract

PURPOSE:To restrain the sliding which is generated in the parallel direction and the rectangular direction of a turbine impeller shaft and contrive to increase the rotary output power by a method wherein a turbine impeller composed of an impeller part and a cylindrical part are arranged, the impeller part and the cylindrical part are formed respectively as a magnet in a casing. CONSTITUTION:A short cylinder-shaped recessed part 23 is formed by a partition wall 22 at one side of the central part of a sealed casing 21. A turbine impeller 27 is rotatably supported in the casing 21. The turbine impeller 27 is composed of a disc plate-shaped impeller part 25 provided with a periphery blade part 24 and a cylindrical part 26 which is integrally protruded from the impeller part 25. The impeller part 25 and the cylindrical part 26 are respectively composed as multipolar magnets. A driven rotary body 33 is composed of a cylinder-shaped multipolar magnet 31 and a shaft 32 supporting said multipolar magnet 31. The driven rotary body 33 is arranged in the recessed part 23 in freely rotatable manner with aligning a shaft 28 of the turbine impeller 27 common to a shaft line C. Thereby, the magnetic force of the turbine impeller 27 is respectively affected toward the parallel and rectangular direction of the shaft 28 and 32, accordingly, the sliding in both directions can be restrained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a refrigeration cycle turbine using a magnetic coupling, and more particularly to a refrigeration cycle turbine designed to increase the transmitted rotational output.

[Technical background of the invention and its problems]

Generally, in a refrigeration cycle, refrigerant is compressed by a compressor and is led to a condenser where it is liquefied.This refrigerant liquid is led to an evaporator via a capillary tube or an expansion valve, and the refrigerant that has passed through the evaporator is returned to the compressor. It is formed by a closed cycle of giving and giving.

In such a refrigeration cycle, the refrigerant that has passed through the capillary tube or expansion valve has large velocity energy because the pressure energy that had been stored up to that point is released.

Recently, we have focused on such large velocity energy,
It is being considered that this energy can be used to turn a turbine and serve as a power source for, for example, cooling a compressor or circulating cold air, thereby reducing power consumption. in particular,
A turbine wheel rotatably housed in a sealed casing is disposed between the capillary tube or expansion valve and the evaporator, and its rotational force is utilized.

FIG. 1 shows an example of a conventional refrigeration cycle turbine used for this purpose.

In FIG. 1, l is a sealed casing having a short circular pole-shaped recess 3 formed by a partition wall 2 in the center of one side, and a disk-shaped outer peripheral wing portion 4 inside the casing. A turbine impeller 5 equipped with a rotatable turbine wheel 5 is rotatably supported. In this turbine wheel 5, an F[-shaped magnet 6 is attached to the recess 3.
It is installed integrally so as to surround the A refrigerant introduction lower is provided in the upper part of the casing l as shown in the figure, and a refrigerant discharge port 8 is provided in the lower part opposite thereto. On the other hand, inside the recess 3, there is provided a driven rotating body 11 consisting of a cylindrical magnet 9 and a shaft 10 that supports the magnet. The arrow in the figure indicates the magnetic direction.

This refrigeration cycle turbine rotates the turbine wheel 5 by ejecting refrigerant from a refrigerant introduction lower and colliding with the outer peripheral blade portion 4 . - When the turbine wheel 5 rotates, the driven rotating body 11 attached thereto rotates, and output is obtained on the shaft 10.

However, in the conventional refrigeration cycle turbine, since the partition wall 2 is interposed, the magnets 6 and 9 are relatively far apart, and when a load is applied to the shaft 10, the rotation speed increases. Therefore, there was a drawback that the slip loss increased and sufficient speed could not be obtained.

[Purpose of the invention]

This invention was made in order to eliminate the above-mentioned drawbacks, and aims to provide a turbine for a refrigeration cycle that has a relatively simple configuration, has little slip loss, and can increase the rotational output transmitted between magnets. It is.

[Summary of the invention]

This invention provides a turbine wheel consisting of a disk-shaped blade portion and a cylindrical portion integrally projecting from the blade wheel portion inside a casing via a partition wall, and a cylindrical blade wheel in a recess outside the casing. The present invention is characterized in that driven rotors each having a magnet are disposed, and at least a portion of each of the cylindrical portion and the impeller portion of the turbine wheel is configured as a magnet.

〔Effect of the invention〕

According to this invention, the cylindrical portion of the turbine wheel and +++
ill j+-☆n /IX y-a+, +J prick
-+-JF / L J-1 addition -9// 4 -
, L, and the magnetic directions are perpendicular and parallel to the rotation axis, so slippage in both directions can be suppressed, and rotational torque, output, etc. can be increased regardless of rotational speed. be able to.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 2, reference numeral 21 is a sealed casing having a short cylindrical recess 23 formed by a partition wall 22 in the center of one side, and a disc-shaped casing provided with an outer circumferential wing part 24 inside the casing. A turbine impeller 27 consisting of an impeller portion 25 and a cylindrical portion 26 integrally projecting from the impeller portion 25 is rotatably supported. 28 is the axis of the turbine wheel 27.

The cylindrical portion 26 of the turbine wheel 27 is formed around the recess 23 so as to surround it, and both the white cylindrical portion 26 and the blade wheel portion 25 are configured as multi-shape magnets.

In the upper part of the casing 21 in the drawing, one end is inserted into the inside of the casing 21 as a refrigerant guide mechanism, and the turbine blade wheel 2
A refrigerant introduction pipe 29 is disposed opposite to the refrigerant introduction pipe 7 and whose other end is connected to a capillary tube to be described later. Further, a refrigerant discharge port 30 is provided in the lower part of the casing 21 in opposition to the refrigerant introduction pipe 29 to send out the internal refrigerant to the next stage equipment.

Further, inside the recess 23, a vertical rotary body 33 consisting of a cylindrical multipolar magnet 31 and a shaft 32 supporting the same is rotatably provided with the shaft 28 and the axis C in common. 34 is a shielding plate for the recess 23, and this shielding plate 34, together with the partition wall 22, also serves as a bearing for the shaft 32.

Note that arrows parallel to the axes 28 and 32 and arrows in a direction perpendicular thereto both indicate magnetic directions.

This refrigeration cycle turbine is used by being incorporated into a refrigeration cycle as shown in FIG. In Figure 3, 4
1 is a compressor for compressing refrigerant, and the refrigerant sent out from this compressor 41 is sent to a condenser 43 via a pipe 42, where it is liquefied, and then passed through a pipe 44 and a capillary tube 45 to a condenser 46. is fed into the turbine of the present invention shown in . Further, the refrigerant leaving the turbine 46 is sent to the evaporator 48 via a pipe 47, and from this evaporator 48 returns to the compressor 41 again via a pipe 49, forming a refrigerant cycle.

In such a configuration, the refrigerant sent out from the compressor 41 is cooled and liquefied in the condenser 43 as described above, and then sent into the turbine 46 via the capillary tube 45. From the capillary tube 45 to the turbine 46
Since the pressure energy that had been stored in the refrigerant is rapidly released, the refrigerant has a large velocity energy and is ejected from the refrigerant introduction pipe 29 toward the outer blade portion 24 of the turbine wheel 27 at high speed. be done.

Therefore, the turbine impeller 27 starts rotating, and the rotation is transmitted to the driven rotor 33 by the interaction of the magnetic forces of the multipolar magnets of the impeller part 25 and the cylindrical part 26 and the cylindrical multipolar magnet 31. It rotates and functions as a turbine for the refrigeration cycle.

At this time, in the turbine wheel 27 of the turbine 46, both the cylindrical portion 26 and the blade wheel portion 25 are configured as multi-polar magnets, and the shafts 2B and 32 are formed to rotate smoothly, so that rotation torque is generated through the shaft 32. and output can be increased significantly.

In addition, smooth rotation means that even after long-term use, there is no play and the roundness of the rotating parts can be maintained, resulting in quiet rotation and a long service life.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist.

For example, in the above-described embodiment C, the entire cylindrical portion 26 of the turbine wheel 27 and the blade wheel portion 25 are configured as multipolar magnets, but the present invention can be configured by using a part of each as a magnet. can also be configured.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the schematic configuration of a conventional refrigeration cycle turbine O)- example, Fig. 21'14 + Mako σ) is an explanatory diagram showing the schematic configuration of an embodiment of the invention, @3 figure is A system diagram of a refrigeration cycle incorporating the same embodiment.
Recessed portion 4...Outer fitting! fls5...turbine blade wheel
6... Magnet 7... Refrigerant inlet 8... Refrigerant outlet 9... Magnet 10... Shaft 11... Driven rotating body 21... Casing 22... Partition wall 23...・
Concave portion 24...Outer circumferential blade portion 25...Blade wheel portion 26...Cylindrical portion

Claims (2)

[Claims] (1) A sealed casing having four short cylindrical parts approximately in the center of one side, a disk-shaped impeller part rotatably supported within the casing, and the recessed part from this substitute wheel part. A turbine wheel consisting of a cylindrical portion integrally projecting to surround it; a refrigerant guide mechanism that guides a refrigerant containing at least one of pressure energy and velocity energy into the casing and sprays it onto the turbine wheel; and the casing. a refrigerant discharge port provided at an appropriate position to send out the internal refrigerant to equipment disposed in the next stage; and a cylindrical magnet rotatably provided in the recess with a common axis with the turbine wheel. 1. A turbine for a refrigeration cycle, comprising: a driven rotor having a driven rotary body, wherein at least a portion of each of the cylindrical portion and the blade wheel portion of the turbine wheel is formed of a magnet. (2) The refrigeration cycle turbine according to claim 1, wherein the magnet of the turbine ILJIL and the magnet of the driven rotor are configured as multipolar magnets. 13) The refrigerant guide mechanism is connected to one end of a capillary tube in a refrigeration cycle, and the refrigerant outlet is connected to an inlet side of an evaporator in the refrigeration cycle. Refrigeration cycle turbine 4 described in item 2