IT202100016853A1 - IMPROVED MAINTENANCE IMMERSION PUMP - Google Patents

Description

IMPROVED MAINTENANCE IMMERSION PUMP

The present invention relates to an electronic immersion pump.

Field of invention

In particular, it is an electronic submersible pump with an improved layout to allow for easier maintenance. simple and fast.

In the following, the description will be? aimed at submersible pumps, but ? it is clear how the same should not be considered limited to this specific use.

Known technique

Currently known electronic submersible pumps comprise a hollow body, containing one or more? impellers possibly interspersed with diffusers and keyed on the shaft of an electric motor, integral with the rotor of this electric motor which ? enclosed inside a motor case which isolates it from the pumping liquid.

There are also other components subject to wear, usually present in the upper compartment of the pump, such as a condenser, generally of the self-extinguishing type, an electronic board, a non-return valve, etc.

Here, and throughout the context of the present patent application, by upper compartment is meant that compartment of the immersion pump which, in use, is less immersed in water or other liquid than the central compartment.

In this upper compartment, therefore, ? it is necessary that all the components that need to remain dry are housed to guarantee the correct functioning of the pump itself.

However, in this area there are usually cables, eyebolts for hooking rope pumps, a carrying handle and sometimes also the delivery duct of the pump itself.

In the event that the removal of one of the aforementioned components subject to wear is required, generally ? You must remove all cables, eyebolts, and handle before accessing any of these components for repair or replacement.

Among other things, these components are, for reasons of space, arranged one above the other, so it can? happen that, to replace a component located pi? at the bottom, it is first necessary to remove all the others arranged above, with the obvious drawbacks of the case. In fact, after the repair or replacement, ? necessary to reinstall all the components removed with the risk of possible installation errors and consequent increase in overall repair times.

Some known solutions provide for the creation of a special compartment, outside the area where the cables and eyebolts are present, resulting in an obvious increase in volume generally obtained at the top, with the risk of collision with the float, for example if the pump is? immersed in a small well, as well as a dangerous displacement of the center of gravity of the submersible pump. Generally there? can? cause stability problems? in the positioning of the pump itself.

In addition, submersible products must have a degree of protection according to the IP68 standard, to prevent liquid entry into areas where the most sensitive components are housed. delicate. If so, create additional logins for a pi? easy maintenance of the product leads to an increased risk of liquid entering.

Purpose of the invention

Main objective of the present invention ? that of providing an electronic immersion pump which allows the aforementioned drawbacks to be overcome and which in particular allows access to the elements subject to wear in an easy and immediate manner.

In detail, the objective of the invention? that of realizing an immersion pump that allows a quick replacement of the condenser or other elements subject to wear without requiring the removal of other components.

Another objective of the present invention ? to facilitate l?accessibility? to components subject to wear without compromising the protection of the components pi? delicate from contact with liquids.

Object of the invention

The subject of the invention is therefore an electronic immersion pump having a main axis of development, and comprising a central body and an upper compartment which can be coupled to the central body, in which the upper compartment is ? intended for housing one more? components for the operation of the pump, in which the upper compartment includes a removable barrier to access inside the upper compartment and reach one or more? of these components, according to an access direction transversal to the main development axis of the pump itself. In this way, advantageously, the maintenance of one or more? components accessible through such means of access becomes simple and fast.

In particular, according to the invention, the access direction can be perpendicular to the main development axis of the pump, advantageously making lateral access to these components possible.

According to the invention, sealing members - such as o-rings, a gasket and the like - associated with the removable barrier may be included to prevent liquids from entering the upper compartment when the immersion pump is in use. immersed in a liquid, such as water. Thus, advantageously, the IP68 protection of the pump continues to be guaranteed.

Furthermore, according to the invention, the upper compartment can present a first compartment accessible via the removable barrier, so? that only a part of the components present in the upper compartment is accessible through this transversal access.

Again, according to the invention, the first compartment can? be sized to accommodate and keep the component in a fixed position. This can be obtained for example through special shapes and dimensions such as not to allow movement of the component. Advantageously, therefore, the component subject to wear remains oriented so that it can be easily extracted once the removable barrier has been removed.

Furthermore, according to the invention, the first compartment can be isolated in a self-extinguishing way, cos? that any flame is extinguished inside this compartment, affecting only the component housed therein, subject to wear and replacement, without compromising other fundamental components of the pump.

Furthermore, according to the invention, the component can be a capacitor, and the removable barrier can? be positioned in correspondence with this condenser.

Always according to the invention, the means of access can comprise a plurality of? of removable barriers, cos? that the seal is guaranteed even after the removal and/or accidental breakage of a first barrier.

Finally, according to the invention, the upper compartment can have at least a second compartment accessible via the access means, isolated from the first compartment, to allow the housing of a second component subject to wear, according to the modalities? housing the former, but separately from the latter. Advantageously, the removable barriers can each be arranged in correspondence with a respective compartment.

Brief description of the figures

This invention will come now described, by way of non-limiting example, according to some of its preferred embodiments, and with the aid of the attached figures, in which:

figure 1 ? a front view of the pump of the invention;

figure 2 ? a side view of the pump of figure 1;

figure 3 ? an enlarged detail of the pump of figure 1, in a first position;

figure 4 ? the detail of figure 3, in a second position;

figure 5 ? the detail of figure 3, in a third position;

figure 6 ? the detail of figure 3, in a fourth position.

Detailed description

In the various figures, similar parts will be indicated with the same reference numbers.

With reference to figures 1-2 ? represented a submersible pump 100, equipped with a main development axis A, and with an upper compartment 10.

Following the main development axis A of the pump 100, the upper compartment 10 is connected, at a first end? 11, to the central body 20. At the second extremity? 12, opposite the first end? 11, the upper compartment has the cable 13 for connection to the float 14, gripping means 15 and other upper protections 16.

Transversally to the development axis A of the pump 100, ? a first cover 30 is present, the details of which are visible in figures 3-5, commented below.

This cover 30 ? fixed to the upper compartment 10 by means of removable fixing means, for example screws 31 or the like. The first cover 30 comprises sealing means 32, preferably an O-ring, which allow the necessary IP68 degree of protection to be guaranteed.

In some variants of the invention, not shown in the figures, the lid can be hinged to the upper compartment and be only partially removable, so as to allow access to at least a part of the inside of the upper compartment. Furthermore, as an alternative to the lid, it can? be present another type of removable barrier, such as a door, a cap or the like.

Inside the upper compartment 10, in correspondence with the lid 30, ? there is a container 33, isolated from the rest of the upper compartment 10 and preferably with a main development axis B, transversal to the main development axis A of the pump 100.

This container 33 ? sized to house a component subject to wear of the pump 100, such as a capacitor for example, and preferably to keep it in a fixed position.

This allows the contained wearing element to be held in a predefined fixed position, avoiding unwelcome bumps and noises.

Preferably, the container 33 has a second lid 34 (figures 4 and 5), capable of advantageously guaranteeing the self-extinguishing insulation from the rest of the upper compartment 10, necessary for housing some components 17 subject to wear and combustion, such as a capacitor.

This advantageously allows to obtain protection of the rest of the pump 100 from a possible fire of the condenser, even in the case in which the use of a non-self-extinguishing condenser 17 has been chosen, with an obvious saving in the production of the pump.

Also, does the cross-access solution solve the accessibility limitation? from above mentioned.

According to preferred variants of the invention, the pump can also include a second or more? cross accesses to access each of the different wear parts separately.

For example, the transverse accesses can all be protected by the first cover 30, and then each have an individual removable barrier (of the type of the second cover 34 shown in figures 4 and 5) so as to isolate the respective compartments intended to house a different component subject to wear.

In other words: ? is it possible to provide for a division of the upper compartment 10 into a plurality? of compartments, preferably each isolated from the other in a self-extinguishing manner, to house as many components subject to wear and accessible according to direction B which in the present embodiment ? transversal to the main development axis of the pump. In other embodiments, the access direction B (shown in Fig. 2 ) can not be transversal to the main development axis A of the immersion pump 100.

In addition, the lids of the respective compartments and ? to protect them from? outside? from a single overall cover.

Alternatively, ? possible to predict that the plurality? of compartments mentioned above is accessible from different points on the external surface of the upper compartment of the pump, according to different directions, all transverse to the main development axis of the pump itself.

Operationally, as can be seen in the sequence of figures 3-6, the operator who is preparing to carry out maintenance on the immersion pump 100 initially acts on the screws 31. Once removed, these allow the displacement of the first cover 30, which ? integral with the o-ring 32 (figure 3).

At this point, ? It is possible to act on the second lid 34 of the compartment 33 which, in the preferred embodiment shown in the figures, has an interlocking closing mechanism, sufficient for self-extinguishing insulation (figure 4).

When also the second cover 34 ? been removed (figure 5), the capacitor 17 inside it? accessible and ? possible to remove it (figure 6). Once the replacement and/or other necessary maintenance operations have been carried out, ? It is possible to close the second cover 34 and subsequently the first cover 30, so that the tightening of the screws 31 produces a pressure by the first cover 30 on the o-ring 32 and on the corresponding abutment of the access hole on the surface of the upper compartment 10 , what? to restore the seal necessary for the IP68 protection.

The invention so? conceived and illustrated here ? susceptible to numerous modifications and variations, all falling within the scope of the inventive concept.

Furthermore, all the details may be replaced by other technically equivalent elements.

Finally, the components used, provided? compatible with the specific use, as well as? the dimensions may be any according to the requirements and the state of the art.

Where features and techniques mentioned in any claim are followed by reference marks, those reference marks have been included for the sole purpose of enhancing intelligibility. of the claims and, consequently, such reference marks have no limiting effect on the interpretation of each element identified by way of example by such reference marks.

Claims (9)

1. Electronic immersion pump (100), having a main development axis (A) and comprising: a central body (20); And an upper compartment (10), which can be coupled to said central body (20), in which the upper compartment (10) is intended for housing one more? components (17) for operating the pump (100); characterized in that the upper compartment (10) comprises an at least partially removable barrier (30) to access the inside of said upper compartment (10) and reach one or more? of said components (17) according to an access direction (B) different from the main development axis (A) of the pump (100). 2. Submersible pump (100) according to the preceding claim, characterized in that the access direction (B) is? perpendicular to the main development axis (A) of the pump (100). 3. Immersion pump (100) according to any one of the preceding claims, characterized in that it comprises sealing members (32) such as o-rings, a gasket and the like, associated with said removable barrier (30), to prevent the entry of liquids into the upper compartment (10) when the immersion pump (100) is on? immersed in a liquid, such as water. 4. Immersion pump (100) according to any one of the preceding claims, characterized in that the upper compartment (10) has a first compartment (33) accessible via the removable barrier (30). 5. Submersible pump (100) according to the preceding claim, characterized in that the first compartment (33) is ? sized to accommodate and keep the component (17) in a fixed position. 6. Submersible pump (100) according to any one of claims 4 or 5, characterized in that the first compartment (33) is ? insulated in a self-extinguishing manner. 7. Immersion pump (100) according to any one of the preceding claims, characterized in that the component (17) ? a capacitor, and by the fact that the removable barrier (30) ? placed in correspondence with said condenser (17). 8. Immersion pump (100) according to any one of the preceding claims, characterized in that it comprises a plurality of of removable barriers. 9. Immersion pump (100) according to the preceding claim, characterized by the fact that the upper compartment (10) has a plurality? of compartments, e by the fact that said removable barriers are each arranged in correspondence with a respective compartment.