KR101612941B1 - Boiler Using Electricity - Google Patents

Abstract

The present invention relates to a boiler using electricity. More specifically, the present invention relates to a boiler using electricity. More specifically, the present invention provides a plurality of electric heater rods to directly or indirectly heat water stored outside the electric heater rods to generate steam or hot water. The boiler unit can be connected to the other boiler unit so that one boiler unit can be operated or a plurality of boiler units can be operated according to the required time for hot water generation or required warm water.
To this end, the present invention provides a steam turbine comprising: a lower water tube into which water for generating hot water or steam is introduced; A plurality of central water tubes arranged vertically so as to be communicable with the lower water tubes and spaced apart at a predetermined interval and storing the water introduced from the lower water tubes; An upper steam pipe for collecting steam generated from the central water pipe; And an electric heater rod passing through the upper steam pipe and being accommodated in the central water pipe and generating heat by being supplied with an external power supply is disposed in each central water pipe, wherein the lower water pipe is disposed in parallel with the two lower water pipes, A drain pipe through which the water flows is formed at one side and a drain pipe through which hot water generated at the other side is discharged to the outside is formed at one side of the other lower water pipe and one of the lower water pipe and the other lower water pipe is connected do.

Description

[0002] Boiler using Electricity [0003]

The present invention relates to a boiler using electricity. More specifically, the present invention relates to a boiler using electricity. More specifically, the present invention provides a plurality of electric heater rods to directly or indirectly heat water stored outside the electric heater rods to generate steam or hot water. The boiler unit can be connected to the other boiler unit so that one boiler unit can be operated or a plurality of boiler units can be operated according to the required time for hot water generation or required warm water.

Generally, the price of fuel cost is continuously increased due to the depletion of fossil fuels such as light oil or gas, and the problem of polluting the environment due to the generation of harmful gas during operation, and the like, the heating device such as a boiler or a hot air fan uses electric energy It is the fact that it is doing.

As an example of a heating apparatus using electricity as described above, a heating rod connected to a power supply unit is installed in a heating water supply unit of a boiler, and then a current is applied to the heater rod to heat the heating water inside the heating water supply unit, A heating mat or a heating bed.

In the structure of a conventional electric boiler for hot water heating related to this technology, as shown in Fig. 1, hot water heating (hot water heating) communicating with the heating water inlet pipe 20 and the heating water outlet pipe 30 of the boiler 10 A heater rod 60 interposed between the power unit 50 and the heating water outlet pipe 30 is installed inside the heating unit 40 to connect the heating water inlet pipe 20 and the heating water outlet pipe 30 to the pipe 70, As shown in FIG.

The heating water inside the hot water heating unit 40 is heated by the operation of heating the heater rod 60 of about 500 W installed in the hot water heating unit 40 through the power source unit 50, 80 to circulate the pipe 70 through the heating water inlet pipe 20 and the heating water outlet pipe 30 so as to heat the heating mat or the heating bed.

However, in the conventional electric heating boiler for heating hot water as described above, when the heating water in the hot water heating unit 40 is heated to a constant temperature by applying a current to the heater rod 60 connected to the power supply unit 50, Heating can not be performed and the preheating time of the heating water is made longer, so that the heating efficiency is lowered due to the delay of the initial heating time of the boiler.

In order to instantaneously heat the boiler, as the current application of the heater rod 60 is increased, the size of the heater rod becomes relatively large, which increases the size of the boiler.

In the conventional boiler, since the heater rod is installed inside the hot water heating part, the instant heating ability is significantly lowered because the heating water flowing into the hot water heating part is heated. Therefore, a small amount Which is required to maximize the instantaneous heating capability.

SUMMARY OF THE INVENTION The present invention has been devised to solve the problems described above, and it is an object of the present invention to provide a method and apparatus for generating steam or hot water by directly heating or indirectly heating water stored outside an electric heater bar, The present invention provides a boiler that can operate one boiler unit or operate a plurality of boiler units according to the required time for generating hot water or required hot water by allowing one boiler unit to be connected to the other boiler unit. have.

The present invention has the following features in order to achieve the above object.

The present invention relates to a water treatment apparatus, comprising: a lower water tube into which water for generating hot water or steam is introduced; A plurality of central water tubes arranged vertically so as to be communicable with the lower water tubes and spaced apart at a predetermined interval and storing the water introduced from the lower water tubes; An upper steam pipe for collecting steam generated from the central water pipe; And an electric heater rod passing through the upper steam pipe and being accommodated in the central water pipe and generating heat by being supplied with an external power supply is disposed in each central water pipe, wherein the lower water pipe is disposed in parallel with the two lower water pipes, A drain pipe through which the water flows is formed at one side and a drain pipe through which hot water generated at the other side is discharged to the outside is formed at one side of the other lower water pipe and one of the lower water pipe and the other lower water pipe is connected do.

The steam generator further includes a steam discharge pipe through which the collected steam is discharged to the outside, and a heater receiving pipe disposed at an outer circumference of the electric heater rod to receive the electric heater rod to maintain airtightness .

The lower water tube and the lower water tube are connected to each other so that the inlet pipe and the discharge pipe of the other boiler unit are connected to each other. The first heat conduction member formed in a screw shape along the outer wall surface of the pipe is inserted into the central water pipe.

The heater accommodating tube may include a second thermally conductive member extending outwardly from an outer wall surface of the corresponding heater receiving tube. The second thermally conductive member may be formed in the form of a screw vane so that water rises along the second thermally conductive member. do.

According to the present invention, it is possible to generate steam and hot water in a short period of time, thereby saving time and energy for operating the boiler, and enabling a plurality of boiler units to be connected, .

Further, according to the formation of the first heat conductive member or the second heat conductive member, the heating efficiency of the heated water can be further improved and rapid steam production can be achieved.

1 is a view showing the structure of a conventional electric boiler for hot water heating.
2 is a perspective view illustrating an electric boiler according to an embodiment of the present invention.
3 is a cross-sectional view taken along line A-A 'in Fig.
4 is a sectional view taken along the line B-B 'in Fig.
5 is a cross-sectional view taken along the line C-C 'in Fig.
6 is a perspective view showing an electric boiler according to another embodiment of the present invention.
FIG. 7 is a view showing an embodiment that can be modified in an electric boiler according to FIG.
FIG. 8 is a view showing another embodiment that can be modified in the electric boiler according to FIG.
Fig. 9 is a view showing another embodiment variant of the boiler using electricity according to Fig. 6; Fig.
Fig. 10 is a view showing an inner tube of a connecting water pipe provided with a thread tube according to Fig.
11 is a view showing a process of fastening the thread tube to the inner tube of the connecting water tube according to FIG.
Fig. 12 is a cross-sectional view of the screw tube according to Fig. 9 in a state where it is engaged with the inner tube of the connecting water tube;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For the sake of convenience, the size, line thickness, and the like of the components shown in the drawings referenced in the description of the present invention may be exaggerated somewhat. The terms used in the description of the present invention are defined in consideration of the functions of the present invention, and thus may be changed depending on the user, the intention of the operator, customs, and the like. Therefore, the definition of this term should be based on the contents of this specification as a whole.

3 is a cross-sectional view taken along a line A-A 'in FIG. 1, FIG. 4 is a cross-sectional view taken along a line B-B' in FIG. 1, and FIG. 5 is a cross- 1 is a C-C 'cross-sectional view.

Referring to the drawings, an electric boiler 100 according to an embodiment of the present invention includes a lower water pipe 10, a central water pipe 20, an upper steam pipe 30, and an electric heater rod 40 .

Here, the lower water pipe 10 is provided to introduce hot water or water for generating steam, and the two water pipes are arranged in parallel to each other.

The reason for providing the two lower water pipes 10 is to minimize the installation space by connecting the two water pipes 10 or the three lower water pipes 10 considering the total boiler installation area according to the number of the electric heater rods 40 I can do it.

In addition, the two lower water pipes 10 are connected at one end thereof so as to communicate with each other. At the other end thereof, an inlet 10a is formed in any one of the lower water pipes 10 and an outlet 10a is formed in the other lower water pipe 10, (10b) is formed.

Accordingly, the water introduced from the inlet 10a of the lower water pipe 10 flows into the lower water tube 10, is heated, and then is discharged through the outlet 10b.

In addition, a connection pipe portion 70 may be further formed on the side where the lower water pipes 10 communicate with each other, to which the inlet pipe 10a and the outlet pipe 10b of the other boiler unit are respectively connected.

In other words, if one boiler shown in FIGS. 1 to 4 is regarded as a single boiler unit, another single boiler unit can be connected through the connection pipe unit 70 to increase the amount of generated hot water.

Accordingly, in consideration of the required quantity of hot water and the maximum time required for the hot water supply, the user can select how many of these boiler units are to be combined.

The central water tube 20 is vertically arranged at a predetermined interval so as to be communicable with the lower water tube 10 and water flowing from the lower water tube 10 is stored to be connected to the electric heater rod 40 The water is heated.

Accordingly, the steam generated from the heated water is collected in the upper steam pipe 30 communicating with the central water pipe 20 and located on the upper side of the central water pipe 20.

Of course, the steam collected in the upper steam pipe 30 is discharged to the steam outlet 50 formed at one side of the upper steam pipe 30.

The electric heater bar 40 is installed in the central water pipe 20 through the upper steam pipe 30 and generates heat by receiving external power. One by one in correspondence with the water pipes 20.

The water introduced from the lower water pipe 10 is generated as hot water or steam by the heating of the electric heater bar 40 while being stored in the central water pipe 20 and the steam is supplied to the upper steam pipe 30 Collected and discharged to the outside.

FIG. 7 is a view showing an embodiment that can be modified in an electric boiler according to FIG.

Referring to the drawings, a boiler using electricity according to the present embodiment includes a heater receiving pipe 41 disposed at an outer periphery of the electric heater bar 40 to receive the electric heater bar 40 to maintain airtightness .

The water introduced from the lower water pipe 10 is disposed between the heater receiving pipe 41 and the central water pipe 20 and receives the heat of the electric heater bar 40 from the outer wall surface of the heater receiving pipe 41, .

The double pipe type structure is relatively low in the amount of water in the central heated water pipe 20 to be introduced, and is quickly induced to generate hot water or steam in the heat of the electric heater bar 40.

Choosing a double pipe type boiler will therefore be the case if the amount of water to be discharged is relatively small and steam or hot water needs to be generated very quickly.

FIG. 8 is a view showing another embodiment that can be modified in the electric boiler according to FIG. 6, and FIG. 9 is a view showing another embodiment that can be modified in the electric boiler according to FIG.

Referring to the drawings, a boiler 100 using electricity according to the present embodiment includes a central water pipe 20 so that the first heat conduction member 80 and the second heat conduction member 90 contact the outer wall surface of the heater receiving pipe 41, The hot air heated by the outer wall surface of the heater receiving pipe 41 is rapidly heated by the water stored in the central water tube 20 through the first thermally conductive member 80 and the second thermally conductive member 90 having relatively high thermal conductivity, So as to heat the water more quickly.

The first thermally conductive member 80 is accommodated in the central water tubes 20 and is provided in a coil spring shape so as to contact the outer wall surface of the heater receiving tube 41. The second thermally conductive member 90 is disposed in the heater receiving tube 41 is formed to protrude outward from the outer wall surface and is formed like a screw blade so that the water rises along the second heat conduction member 90 and increases the heating area to rapidly heat the water.

Fig. 9 is a view showing another embodiment which can be modified in the boiler using electricity according to Fig. 6, Fig. 10 is a view showing a heater receiving tube provided with a screw tube according to Fig. 9, FIG. 12 is a cross-sectional view illustrating a state in which the thread tube is coupled to the heater receiving tube according to FIG. 9. FIG.

Referring to the drawings, a boiler 100 using electricity according to the present embodiment is provided with a screw tube 95 in which a threaded cut portion is formed in a heater receiving tube 41 and is coupled to the cut portion.

The screw thread tube 95 has an enlarged portion 96 positioned outside the cutout portion of the heater receiving tube 41 and having a predetermined accommodation space and a screw portion 96 extending from the enlarged portion 96 to the outer wall surface of the inner tube 23a And a flange portion 97 fixed in contact with the flange portion 97.

It is needless to say that the accommodating space of the extending portion 96 may have a triangular shape in cross section as shown in the drawing, and other shapes are possible.

As a result, the heating area of the heater receiving pipe 41 heated by the electric heater bar is further increased and the heating contact area of the water stored outside is further increased, so that the heating time and heating efficiency of the hot water can be further improved .

A protruding piece 41a protruding to the upper or lower side of the cutting section of the heater receiving pipe 41 and a cutting groove 95a and a receiving pocket 95b formed outside the flange 97 of the threaded tube 95, The screw thread tube 95 is positioned on the cutout of the heater receiving tube 41 and then the protruding piece 41a penetrates into the cutout groove 95a and is rotated inside the receiving pocket 95b The coupling is completed by being inserted.

After the welding, the work such as welding is performed. In the welding process, the welding process is not necessary.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

10: Lower water pipe 20: Central water pipe
30: upper steam tube 40: electric heater rod
50: steam outlet 60: water level measuring unit
70: connecting tube portion 80: first heat conduction member
90: second heat conductive member 95: threaded pipe
100: Electric boiler

Claims (8)

A lower water tube 10 into which water for generating hot water or steam is introduced;
A plurality of central water tubes 20 arranged vertically so as to be communicable with the lower water tubes 10 and spaced apart from each other by a predetermined distance and storing the inflow water from the lower water tubes 10;
An upper steam pipe 30 for collecting steam generated from the central water pipe 20; And
An electric heater rod 40 passing through the upper steam pipe 30 and accommodated in the central water pipe 20 and generating heat by receiving external power;
The lower water pipe (10)
An inlet pipe 10a through which water is introduced into one of the lower water pipes 10 is formed in parallel with one of the two lower water pipes 10 and hot water generated in the other one of the lower water pipes 10 is discharged to the outside A discharge pipe 10b is formed,
One of the lower water tubes 10 and the other of the lower water tubes 10 is connected to one side so as to communicate with each other and is disposed on the outer circumference of the electric heater rod 40 to keep the electric heater rod 40 in a hermetic state (41) for accommodating the heater,
The heater accommodating tube 41 is formed with a spiral cut portion. An expansion portion 96 having a predetermined accommodation space is formed on the outer side of the cutout portion. The extension portion 96 is extended to the extension portion 96 and is in contact with the outer wall surface of the inner tube 23a. A screw thread tube 95 constituted by a fixed flange portion 97 is engaged,
Since the receiving space of the extension portion 96 is formed in a triangular shape in cross section, the heating area of the heater receiving pipe 41 heated by the electric heater bar is further increased, and the heating contact area of water stored on the outside increases Wherein the boiler is an electric boiler.
The method according to claim 1,
A cutout groove 95a and a receiving pocket 95b formed outside the flange portion 97 of the screw linear tube 95. The projecting piece 41a protrudes to the upper or lower side of the cutout portion of the heater receiving pipe 41, The threaded tube 95 is placed on the cutout of the heater receiving tube 41 and then inserted into the receiving pocket 95b as the protruded piece 41a passes through the cutout groove 95a and rotates by a predetermined angle. Wherein the boiler is coupled to the boiler.
The method according to claim 1,
Further comprising a steam discharge pipe (50) for discharging the collected steam to the outside at one side of the upper steam pipe (30).
The method of claim 3,
One of the lower water pipes 10 and the other lower water pipe 10 is connected to the connection side so that the inlet pipe 10a and the discharge pipe 10b of the other boiler unit are connected to each other. 70) are further formed in the boiler (10).

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