INTEGRATED BOILER SYSTEM

Description

TECHNICAL FIELD

The present invention relates to the field of boiler heating technology.

BACKGROUND ART

PCT/IL2019/050416 by the same Applicant is considered as the closest prior art. It discloses “a boiler heating system comprising: a hollowed-walls cylinder, for storing therein water to be heated; a partition in a form of a cylinder, disposed inside the hollowed-walls cylinder, distantly from its vertical walls; the partition having an upper water passage and a lower water passage, for allowing water transition between the internal side of the partition and the external side of the partition; a heating element disposed inside the internal space of the hollowed-walls cylinder; a water inlet, disposed in the lower side of the hollowed-walls cylinder; and a water outlet, disposed in an upper side of the hollowed-walls cylinder, thereby (a) allowing heating the water without being in direct contact between the heating element and the water, resulting with no scale accumulation, and (b) separation between ascending water and descending water, thereby accelerating the water warming.”

As mentioned, the boiler described in patent application PCT/IL2019/050416 speeds up the heating of the water of a boiler. However, since there is a long felt need to improve the utilization of energy, there is a need to improve the energy utilization the boiler system described in PCT/IL2019/050416.

It is an object of the present invention to provide an improved solution to the above-mentioned and other problems of the prior art.

Other objects and advantages of the invention will become apparent as the description proceeds.

SUMMARY OF THE INVENTION

The present invention is directed to an integrated boiler system, comprising:

two separate boilers, one disposed inside the other, each of the boilers having:

(a) a vertical partition disposed therein;

(b) a water passage at a top side of the partition; and

(c) a water passage at a bottom side of the partition;

a chamber disposed in, or generated by, a gap between the boilers; and

a heating element, disposed in the chamber, for heating the boilers simultaneously by the same energy.

According to one embodiment of the invention, at least one of the water passages is adjustable, thereby allowing changing the heating rate of the boiler. Such a characteristic may be achieved by, for example, a telescopic partition.

The heating element may be a filament, a spiral filament (coil), etc.

Preferably, each of the boilers has a cylindrical form;

however other forms may be used as well, such as a rectangular prism.

As mentioned, the chamber may also be generated from the walls of the boilers, and more particularly a gap between the external wall of the internal boiler, and the internal wall of the external boiler.

According to one embodiment of the invention, the ratio of the volumes created by the partition is adjustable. This can be accomplished, for example, by placing an inflatable balloon in one of the volumes.

The reference numbers have been used to point out elements in the embodiments described and illustrated herein, in order to facilitate the understanding of the invention. They are meant to be merely illustrative, and not limiting. Also, the foregoing embodiments of the invention have been described and illustrated in conjunction with systems and methods thereof, which are meant to be merely illustrative, and not limiting.

BRIEF DESCRIPTION OF DRAWINGS

Preferred embodiments, features, aspects and advantages of the present invention are described herein in conjunction with the following drawings:

FIG. 1 is a sectional view of an integrated boiler system, according to the prior art, and more particularly PCT/IL2019/050416.

FIG. 2 is a cross-section of the integrated boiler system of FIG. 1.

FIG. 3 is a perspective view of an integrated boiler system, according to one embodiment of the invention.

FIG. 4 is the longitudinal cross-section A-A as defined in FIG. 3. It illustrates the structure of the integrated boiler system.

FIG. 5 is a broken view that further details the integrated boiler system, according to the embodiment of the invention illustrated herein.

FIG. 6 is the longitudinal cross-section A-A as defined in

FIG. 3. It illustrates the water in the integrated boiler system.

FIG. 7 is the longitudinal cross-section A-A as defined in FIG. 3. It illustrates the water flow in the integrated boiler system.

It should be understood that the drawings are not necessarily drawn to scale.

DESCRIPTION OF EMBODIMENTS

The present invention will be understood from the following detailed description of preferred embodiments (“best mode”), which are meant to be descriptive and not limiting. For the sake of brevity, some well-known features, methods, systems, procedures, components, circuits, and so on, are not described in detail.

FIG. 1 is a sectional view of an integrated boiler system, according to the prior art, and more particularly PCT/IL2019/050416.

FIG. 2 is a cross-section of the integrated boiler system of FIG. 1.

This structure defines three chambers:

Chamber C, which is the interior side of cylinder 14. Chamber C is referred herein as a Combustion Chamber;

Chamber H, which is confined by cylinders 13 and 14, i.e., the space between the partition 13 and the cylinder 14. This chamber is referred herein as Heating Chamber; and

Chamber A which is the space confined by cylinder 12 and cylinder 14, excluding the space of chamber H. This chamber is referred herein as Accumulating Chamber.

Cylinder 14 is heated by the heating element 15. As a result, the water disposed in chamber H is heated, and therefore moves upwards.

The heated water of chamber H is in contact with the water of chamber A. As a result the water of chamber A, which is colder than the water of chamber H, moves downwards. Thus, the water inside the tank circulates as illustrated in this figure by the arrows.

The relation between the space of the heating chamber H and the space of the accumulating chamber A determines the heating rate of the water in the tank.

Since in this structure the water of the tank is not in direct contact with the heating element 15, no scale is generated. As a result, this system lasts longer than systems in which water is heated while being in direct contact with the heating element. Furthermore, in the present invention lesser maintenance activity is required, since the main maintenance activity in the prior art boilers is due to the accumulated scale.

Furthermore, the system heats a boiler's water in less time than a prior art boiler with the same characteristics, so the energy consumed by the present invention is lesser in comparison to the prior art boiler. The reason thereof is separation between ascending water and descending water inside the boiler, in contrast to prior art boilers in which ascending water is mixed with descending water and therefore interfere with each other.

FIGS. 3 to 6 illustrate an integrated boiler system 101, according to one embodiment of the present invention.

Generally speaking, according to the present invention, two boilers operating according to the principles of PCT/IL2019/050416, are heated by the same heating element, which is marked herein by reference numeral 15.

One of the boilers, which is marked herein by letter A, is in a form of a cylinder, while the other, which is marked herein by letter B, is in a form of a tube which surrounds boiler A. Thus, boiler A is the internal boiler, while boiler B is the external boiler.

Between the boilers is disposed a heating chamber H, in which is placed a heating element 15. According to this example, the heating element is in a form of a coil.

This structure uses the heating chamber H with the element 15 is shared by both boilers the internal A and external boiler B. Thus, the same energy is used for heating two boilers. As such, the present invention is more efficient than the invention of PCT/IL2019/050416.

FIG. 3 is a perspective view of an integrated boiler system, according to one embodiment of the invention.

It shows the external casing of the boiler, and the hot water outlets 11a and 11b. The index “a” refers to the internal boiler, and the index “b” refers to the external boiler.

Reference numeral 10b points on the water inlet to the external boiler B.

In this figure is defined a longitudinal cross section A-A of the boiler system.

FIG. 4 is the longitudinal cross-section A-A as defined in FIG. 3. It illustrates the structure of the integrated boiler system.

As mentioned, the integrated boiler system comprises two boilers: an internal boiler, which is marked herein by reference letters A; and an external boiler which is marked herein by reference letter B.

The figure shows the space of the internal boiler which is marked as (A), and the space of the external boiler which is marked as (B). The dot at the end of the curve that points on an illustrated element denotes a space inside the element.

Reference numeral 10a denotes an inlet to the internal boiler A; and reference numeral 10b denotes an inlet to the internal boiler B. Reference numeral 11a denotes a hot water outlet from the internal boiler A; and reference 11b denotes a hot water outlet from the external boiler B.

Reference numeral 13a denotes a partition inside the internal boiler A, and reference numeral 13b denotes a partition inside the external boiler B. It should be noted that the partitions 13a and 13b do not reach to the top and bottom of the corresponding boilers, but rather have a space to allow the water to circulate around the partitions.

It should be noted that according to this embodiment of the invention, the Combustion Chamber C is the space between the external wall of the internal boiler A and the internal wall of the external boiler B.

Despite of the fact that in this example there are two inlets and two outlets, it should be noted that the number of inlets and outlets can be different. Actually, one inlet and one outlet are adequate and even preferable.

FIG. 5 is a broken view that further details the integrated boiler system, according to the embodiment of the invention illustrated herein.

It shows the spaces (A) and (B) of the boilers, the space (C) of the Combustion Chamber, and the partitions 13a and 13b.

It should be noted that the space of the combustion chamber C does not meet the space of the boilers. Thus, water from the boilers do not enter into the combustion chamber.

FIG. 6 is the longitudinal cross-section A-A as defined in FIG. 3. It illustrates the water in the integrated boiler system.

The water of the internal boiler A is filled by a different fill than the water of the external boiler B.

FIG. 7 is the longitudinal cross-section A-A as defined in FIG. 3. It illustrates the water flow in the integrated boiler system.

As illustrated, there is a water passage at the top and bottom sides of each of said partition. The water passage is obtained by a gap between each partition and a top of the boiler thereof, and each partition and a bottom of the boiler thereof.

The arrows demonstrate water flow.

As illustrated, the water in each of the boilers rotates around the boiler partition. This subject matter is described hereinabove, and also in PCT/IL2019/050416.

As illustrated, a single heating element 15 heats both, the water of the internal boiler A, and the water of the external boiler B. Thus, in addition to the benefits described in PCT/IL2019/050416, the present invention also saves energy.

In the figures and/or description herein, the following reference numerals (Reference Signs List) have been mentioned:

• numeral 100 denotes an integrated boiler system, according to the prior art, and more particularly of PCT/IL2019/050416;
• numeral 101 denotes an integrated boiler system, according to one embodiment of the present invention;
• the letter A denotes the internal boiler;
• the letter (A) in parentheses denotes the space of boiler A;
• the letter B denotes the external boiler;
• the letter (B) in parentheses denotes the space of boiler B;
• the letter C denotes a combustion chamber;
• the letter H denotes a heating chamber;
• the letter A denotes an accumulating chamber;
• numeral 10 denotes an inlet to the heating system 100;
• numeral 10a denotes a water inlet into the internal boiler A;
• numeral 10b denotes a water inlet into the internal boiler B;
• numeral 11 denotes an outlet from the heating system 100;
• numeral 11a denotes a water outlet from the internal boiler A;
• numeral 11b denotes a water outlet from the external boiler B;
• numeral 12 denotes a first cylinder;
• numeral 13 denotes a second cylinder operable as a partition;
• numeral 13a denotes a partition cylinder inside the internal boiler A;
• numeral 13b denotes a partition cylinder inside the external boiler B;
• numeral 14 denotes a third cylinder;
• numeral 15 denotes a heating element;
• numeral 20 denotes a water line; and
• numeral 21 denotes water inside the boiler.

In the description herein, the following references have been mentioned: PCT/IL2019/050416

The foregoing description and illustrations of the embodiments of the invention has been presented for the purposes of illustration. It is not intended to be exhaustive or to limit the invention to the above description in any form.

Any term that has been defined above and used in the claims, should to be interpreted according to this definition.

The reference numbers in the claims are not a part of the claims, but rather used for facilitating the reading thereof. These reference numbers should not be interpreted as limiting the claims in any form.