JPS5827897A - Magnet driven motor pump - Google Patents

Abstract

PURPOSE:To enable to convey a high-temperature liquid, by forming a frictional blower by a motor bracket and a magnet ring, and thereby cooling a motor effectively. CONSTITUTION:In a driving motor 1 having a rotor 2, a magnet ring 3 supporting driving magnets 4 is supported in a freely rotatable manner by a bearing 5 together with the rotor 2. A bracket 6 is projected in a cylindrical form and supports a magnet case 7 at its top. Further, in the cylindrical section of the bracket 6, a suction port 8 and a discharge port 9 are defined by a partition 11. With such an arrangement, when the magnet ring 3 is turned, air in the cylindrical section of the bracket 6 is driven in the direction shown by arrows in the drawing as cooling air 10, so that the apparatus can be cooled effectively.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnet-driven mode pump, and particularly to a magnet-driven mode pump that is small and suitable for transferring high-temperature liquid.

Conventionally, magnet-driven mode pumps are used for power transmission.
By using a magnetic coupling between the drive and driven magnets, there is no need for the model shaft to penetrate into the pump section, and a shaft sealing device such as a mechanical seal is not required, so it has the advantage of not causing liquid leakage. ,
It has the major drawbacks of high cost and narrow application range.

In other words, when high-temperature liquid is generally transferred by a pump, there is a problem that the drive model is heated by the heat, so it is recommended to separate the drive model and the pump part as much as possible to reduce heat transfer. , methods have been adopted to improve cooling of the mold part by making the mold part an open type, but this has the disadvantage of increasing the size and cost, and in general, the chemical liquid in the pump part is Since they are often exposed to hydraulic fluids such as, open type devices lack reliability, and in these respects have a major drawback in that their range of applications is narrow.

An object of the present invention is to provide a magnet-driven mode pump which is free from the drawbacks of the prior art as described above, has a wide range of applications, and is low in cost.

The main point of the present invention is to solve the drawbacks of the prior art, such as low heat resistance and large size, which have narrowed the range of applications. By forming a friction prower, the heat of the pump part is effectively cooled at the intermediate part between it and the mold, making it possible to transfer high-temperature liquid and making it possible to reduce the size of the pump part.

The present invention is characterized in that it includes a driving mode and a magnet ring that supports a driving magnet that transmits power from the driving mode to an impeller having a driven magnet provided in a pump chamber. In a magnet-driven mode pump that is equipped with a bracket for coupling the bracket to the pump part, a magnet ring is positioned inside the bracket, and at least two magnet rings are provided to the bracket, which serve as an inlet and an outlet for cooling air. A magnetic drive mode in which a partition plate is provided to form a hole opening, the magnet ring acts as an invading part of the prower, and the inner surface of the bracket acts as a casing part to form a friction prower. Located at Le Pomp.

Next, embodiments of the magnet-driven mode pump according to the present invention will be explained with reference to the drawings.

Here, FIG. 1 is a partially opened sectional view of a magnet-driven mode pump according to an embodiment of the present invention, and FIG.
A sectional view taken along the line A-A in the figure, and FIG. 3 are an enlarged perspective view of the main parts.

In the figure, 1 is the drive mode, `` is the rotor, 3 is the magnet ring, 4 is the drive magnet, 5 is the bearing, 6 is the bracket, 7 is the magnet case, 8 and 9 are the suction ports related to the hole. and a discharge port, 10 indicates cooling air,
11 is a partition, 12 is a pump casing, 13 is a driven magnet, 14 is a shaft, and 15 is an impeller.

That is, in the driving mode 1 having the rotor 2, the magnet ring 3 supporting the driving magnet 4 is
It is rotatably supported together with the rotor 2 by a bearing 5.

The bracket 6 protrudes in a cylindrical shape and supports the magnet case 7 at its tip, and the cylindrical part has a suction port 8 and a discharge port formed by a partition 11 as shown in FIGS. 2 and 3. 9 is formed so that the cooling air 10 is introduced from the outside through the suction port 8 into the inside, and is discharged outwardly from the discharge port 9.

As clearly shown in FIGS. 2 and 3, the inner diameter of this partition 11 from the center, that is, the inner diameter from the center to the upper surface, is the inner diameter from the inside of the other part, the bracket 6, that is, the inner diameter from the center. It is smaller.

Moreover, its shape is formed into a Y-shaped cross section as shown in the figure.

As a result, as the magnet ring 3 rotates, the air inside the cylindrical portion of the bracket 6 is cooled as shown in the figure.
is guided in the direction of the arrow, and efficiently discharges the discharge port 9.
It was formed in such a way that it was emitted outward.

Further, the pump casing 12 forms a pump part together with the magnet case 7, and this pump part has a driven magnet 13 and an impeller 15 rotatably supported via a shaft 14. It is something.

With the above-mentioned configuration, this embodiment has an extremely simple configuration, and as described above, the magnet ring 3 acts as an impeller part of the friction prower, and the bracket 6 Since the inner surface acts as a casing part and the joint part between the pump part and the mold part can be effectively cooled by the friction puller method, it is possible to prevent heat from being transferred to the mold part.

Therefore, it is possible to construct an axially short magnet-driven mode pump in which the seven-torque part and the pump part are brought into close contact with each other.

In addition to the above, there is no need for the mold section to be an open type, which improves reliability.

As described above, it is possible to obtain a small, low-cost magnet-driven mode pump that has a wide range of uses, is small, suitable for transferring high-temperature liquids, and is suitable for transferring high-temperature liquids.

As mentioned earlier, in the past, when high-temperature liquids were generally transferred using a pump, there was a problem in that the drive mode was heated by the heat, so the drive mode and pump part were separated. The method of separating the mold parts as far as possible to reduce heat transfer and increasing the cooling of the mold part by making the mold part open is adopted. Since it is often exposed to liquid, an open type can be said to have a much greater practical effect than the conventional type, which has a major drawback of lacking reliability.

In other words, when a closed type is used to prevent damage from chemical solutions, the dimensions can be reduced; when an open type is used when there is no risk of the above, cooling can be achieved by adding a cooling configuration to the open configuration. It is possible to increase the effectiveness and reduce the size, and at the same time, the performance of the magnet-driven mode pump can be maintained sufficiently.

Therefore, the main point of the present invention is to configure a friction blower with a mold bracket and a magnet ring to perform effective cooling.
In this respect, in the illustrated configuration of the above embodiment, the magnet ring is not provided with any blades, but in a small machine, a sufficient cooling effect can be obtained with this level.

However, in the case of larger machines with higher temperatures, the cooling effect can be greatly improved by providing blades.

Still, in the above embodiment, the inner diameter of the partition part is smaller than the other parts, but even if the diameter is the same, that is, the inner diameter of the bracket, the cooling effect will be reduced to some extent. However, there is no problem in practical use, and the shape is not limited to the Y-shaped cross section as long as it does not impede the guiding and deriving functions.

Furthermore, in the embodiment, there is a dispute that two suction ports and one discharge port are provided, but a plurality of holes are further provided in the vicinity of the two suction ports and one discharge port, which prevents increasing the number of holes. isn't it.

Taking the above-mentioned aspects into consideration, the present invention can provide a magnet-driven mode pump that is small, has a good cooling effect, is suitable for transferring high-temperature liquid, and is highly reliable. This can be said to be an invention with excellent practical effects.

[Brief explanation of the drawing]

FIG. 1 is a partially opened sectional view of a magnet-driven mode pump according to an embodiment of the present invention, and FIG.
A sectional view taken along line A, and FIG. 3 is an enlarged perspective view of the main part. 1... Drive mode, 3... Magnet ring,
4... Drive magnet, 6... Bracket, 8...
・Suction port, 9...Discharge port, 11...Partition part, 13.
... Driven magnets Kaya 20 No. 30

Claims (1)

[Claims] 1. A driving mode, and a magnet ring supporting the driving magnet for transmitting power from the driving mode to an impeller having a driven magnet provided in a pump chamber, and In a magnet-driven modele pump equipped with a bracket for coupling the modele part to the pump part, the platen) (
10-Position the magnet ring inside and
A partition is provided in the bracket so as to form at least two holes that serve as an inlet and an outlet for cooling air,
A magnet-driven mode pump characterized in that the magnet ring acts as an impeller of the proar, and the inner surface of the bracket forms a friction proar that acts as a casing part. 2. The magnet-driven modele pump according to claim 1, wherein the inner diameter from the center of the partition portion is smaller than the other portions.