WO2004109194A1

WO2004109194A1 - Low electric power graphite boiler

Info

Publication number: WO2004109194A1
Application number: PCT/KR2004/001333
Authority: WO
Inventors: Jongchul Kim
Original assignee: Jongchul Kim
Priority date: 2003-06-05
Filing date: 2004-06-04
Publication date: 2004-12-16
Also published as: KR20040107569A; KR100512044B1

Abstract

It is an aspect of the present invention to provide a low electric power graphite boiler available for an instantaneous hot-water function by separating a heating pipe coming in and out a hypocaust for heating and a hot-water pipe for using hot water. The present invention provides a low electric power graphite boiler comprising a case; a central heater inserted inside central portion of the case to reduce the current speed of the water, having a large area contacted with the supplied water, and heating water for hot water and heating in a condition of no electric power by heated graphite powder particles; a large number of heating rods separated by a predetermined distance from the outside of the central heater; an electrode applying source of electricity to the heating rod; a circulation pipe circulating water supplied through a supply pipe and a hypocaust flush pipe inside the case and being separated by a predetermined distance from the heating rods; graphite powder body packed between the heating rod and the circulation pipe, and between the circulation pipe and the central heater; an adiabatic material attached on the entire inner surface of the case; an inflow pipe flowing in water circulated through the circulation pipe to the central heater; a hot-water pipe supplying water heated by the central heater for hot water; a hypocaust incurrent pipe for heating; and a temperature sensor controlling operation by sensing temperature of the graphite powder body and then having a controller detected. In such a configuration, the present invention has an effect that it can supply hot water and heating by using a property of heat capacity even in a condition of no electric power for a longer time period, thereby reducing electric power consumption.

Description

LOW ELECTRIC POWER GRAPHITE BOILER

Technical Field The present invention relates to a low electric power graphite boiler, and more pa rticularly to a low electric power graphite boiler available for supplying heating and hot w ater by using heat of heated graphite powder particles easily heated while the boiler do es not operate.

Background Art

A boiler according to the related art uses a graphite pipe to supply heating and h ot water while source of electricity is not applied to the boiler. An example like this is dis closed in Korean Registered Utility Model Publication No. 20-0284929. Referring to this, the related art boiler will be described in more detail hereinbelow: FIG. 1 is a whole assembly cross-sectional view of the related art graphite boiler;

FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1 ; and FIG. 3 is a perspec tive view of heating means and hot-water pipe. As shown in these, a graphite pipe 2 pa eked with a graphite medium 2' by high pressure is installed overlapping an adiabatic m aterial 3 by a predetermined space 4 on the entire inner surface of an outer case 1 man ufactured in a predetermined size. However, inside the graphite pipe 2, heating rods 6 a nd 6' having electrodes 5 connected thereto are arranged scattering in the middle and a

II directions of circumference of the heating rods. A hot-water coil 7 coiled in the form of cylinders is inserted into the space 4, and an inflow hole 7' and an outflow hole T of bo th ends thereof are projected outside of the case 1. Also, a cover 9 for a combined use as a water replacement tank having a water replacement pipe 8 connected thereto is in stalled on the upper portion of the case 1 , and a circulation pump 10 is connected to on e side of the hot-water coil 7.

A reference number 11 not described in FIG 1 refers to working fluid and a refere nee number 12 not described in FIG 3 refers to an electric wire connected to the elect rodes 5 of the heating rods 6 and 6'.

As described above, the related art boiler is configured to continuously supply in door heating and hot water without electric power consumption for a predetermined ti me period using heat quantity reserved in the graphite medium 2' surrounding the he ating rods 6 and 6'. An embodiment according to this will be described in more detail as follows: In installing and using the related art boiler, firstly, working fluid 11 is filled inside the hot-water coil 7 coiled inside and outside of the heating rods 6 and 6' in the form of cylinders so that the inflow hole T and the outflow hole T of the hot-water coil are projected outside the case 1 and the cover 9 for a combined use as a water replacem ent tank installed to attach on the upper portion of the case 1. Herein, the working fluid 11 filled inside the cover 9 for a combined use as a wat er replacement tank installed on the upper portion of the case 1 is used as a concept of the water replacement. Accordingly, if the working fluid 11 filled in the hot-water coi I 7 is evaporated, the working fluid 11 of the inside of the hot-water coil 7 along with t he water replacement pipe line 8 by potential energy so that the working fluid 11 insid e of the hot-water coil 7 may always be circulated and remained as much as a certain amount.

As described above, after the boiler is installed, the boiler may operate by conne cting the electric wire 12 extracted to the outside of the case 1 from the electrodes 5 of the heating rods 6 and 6' to a power source. If source of electricity is applied throu gh the electric wire 12, the graphite medium 2' packed by high pressure inside the gr aphite pipe 2 and the hot-water coil 7 inserted into the space 4 formed between the in side and outside of the heating rods 6 and 6' coiling in the form of cylinders are heate d by heating the heating rods 6 and 6' arranged scattering in the middle and all directi ons of circumference of the graphite pipe 2 so that the working fluid 11 of the inside o f the hot-water coil 7 is heated.

In this regard, since the hot-water coil 7 is connected to the circulation pump 10, whole temperature becomes uniform by circulating the working fluid 11 inside of the h ot-water coil 7 along with a pipe line.

In such operation described above, when the whole temperature of the working fl uid 11 inside the hot-water coil 7 becomes uniform, high-temperature heat is reserve d inside the graphite medium 2' packed inside the graphite pipe 2 by high pressure. In other words, the graphite medium 2' is a black single element which is formed by bonds of carbon atoms and which has metallic luster. Moreover, the graphite medi um has a strong heat resistance and conducts well electricity so that it is used as an electric material in various fields. The related art boiler uses a heat characteristic of s uch a graphite medium 2'.

By an experiment, when the whole temperature of the working fluid 11 , that is, w ater is in the range of 90 to 100^°C, the temperature of the graphite medium 2' of the i nside of the graphite pipe 2 is in the range of 400 to 500 ^°C .

Thus, heat of the inside of the graphite pipe 2 is reserved in a condition of maxim ally preventing the heat from being released by the adiabatic material 3 covering the outside thereof, thereby constantly supplying the heat to the hot-water coil 7 for a pre determined time period.

Therefore, by the operation described above, the working fluid 1 1 of the inside of the hot-water coil 7 is maintained without temperature falling in a condition of operati on stopped, thereby continuously supplying indoor heating and hot water without elec trie power consumption for a constant time period.

Herein, it is basic that the adiabatic material 3 is manufactured using ordinary fla me-retardant urethane having an excellent adiabatic effect and the outer case 1 is m anufactured using a stainless steel having a strong anticorrosiveness. However, the related art boiler described above has a disadvantage that water u sed for heating, that is, water flowing in and out a hypocaust is supplied as hot water, thereby not using an instantaneous hot-water function and not obtaining clean hot w ater as well.

Further, the related art boiler has a disadvantage that since it takes a long time p eriod to heat a graphite pipe and the heat gets cold easily by property of the graphite pipe, a time period for supplying hot water and heating is short without applying electr ic power.

Brief Description of the Drawings FIG. 1 is a whole assembly view of the related art graphite boiler. FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1.

FIG. 3 is a perspective view of the heating means and the hot-water pipe in FIG.

1.

FIG. 4 is a lateral cross-sectional view of the low electric power graphite boiler of the present invention.

FIG. 5 is a cross-sectional view taken along line A-A' in FIG. 4.

Disclosure of the Invention

Technical problem To solve the above and/or other problems, the present invention provides a low e lectric power graphite boiler available for using an instantaneous hot-water function by s eparating a heating pipe coming in and out a hypocaust for heating and a hot-water pip e for using hot water.

Also, the present invention provides a low electric power graphite boiler uses gra phite powder particles, rapidly heats the graphite powder particles, and is configured no t to get cold easily, thereby increasing a time period for supplying hot water and heating in a condition of no electric power.

Technical Solution According to an aspect of the present invention, the present invention provides a low electric power graphite boiler comprising a case; a central heater inserted inside c entral portion of the case to reduce the current speed of the water, having a large area contacted with the supplied water, and heating water for hot water and heating in a con dition of no electric power by heated graphite powder particles; a large number of heati ng rods separated by a predetermined distance from the outside of the central heater; a n electrode applying source of electricity to the heating rod; a circulation pipe circulating water supplied through a supply pipe and a hypocaust flush pipe inside the case and b eing separated by a predetermined distance from the heating rods; graphite powder bo dy packed between the heating rod and the circulation pipe, and between the circulatio n pipe and the central heater; an adiabatic material attached on the entire inner surface of the case; an inflow pipe flowing in water circulated through the circulation pipe to th e central heater; a hot-water pipe supplying water heated by the central heater for hot w ater; a hypocaust incurrent pipe for heating; and a temperature sensor controlling opera tion by sensing temperature of the graphite powder body and then having a controller d etected.

Advantageous Effects

The present invention has an effect that it can supply hot water and heating by u sing a property of heat capacity even in a condition of no electric power for a longer tim e period, thereby reducing electric power consumption. Further, the present invention has an effect that since it generates high heat for s ame supply electric power by using hot-water as means for heating graphite powder, it can easily heat the graphite powder by the preset temperature, thereby reducing electri c power consumption.

Further, the present invention has an effect that since it modifies a passage thro ugh which water heated by heat conduction of graphite powder flows in order to reduce current speed thereof and its configuration in order to broaden the contact area of grap hite powder, it can obtain a higher heat efficiency, thereby obtaining hot water of higher water temperature.

Best mode for carrying out the Invention

FIG. 4 is a lateral cross-sectional view of the low electric power graphite boiler of the present invention and FIG. 5 is a cross-sectional view taken along line A-A' in FIG. 4. As described in these, the low electric power graphite boiler comprises a case 40; a c entral heater 60 inserted inside central portion of the case 40, having a large area conta cted with the water supplied heating water for hot water and heating in a condition of no electric power by heated graphite powder particles; a large number of heating rods 45 separated by a predetermined distance from the outside of the central heater 60; an ele ctrode 47 applying source of electricity to the heating rods 45; a circulation pipe 43 circu lating supplied water through a supply pipe 41 and a hypocaust flush pipe 42 inside the case 40 and separated by a predetermined distance from the heating rods 45; graphite powder body 44 packed between the heating rod 45 and the circulation pipe 43 and pac ked between the circulation pipe 43 and the central heater 60; an adiabatic material 50 attached on the entire inner surface of the case 40; an inflow pipe 46 flowing in water ci rculated through the circulation pipe 43 to the central heater 60; a hot-water pipe 48 sup plying water heated by the central heater 60 for hot water and a hypocaust incurrent pip e 49 supplying heating; and a temperature sensor 70 sensing temperature of the graphi te powder body 44.

The central heater 60 comprises a heating coil 61 located in the center portion th ereof and generating heat by applying source of electricity through an electrode 64; a la rge number of capillary tubes 63 separated by a predetermined distance from the heati ng coil 61 and having current speed of supplied water from the inflow pipe 46 reduced f or sufficiently heating the water; graphite power particles 62 packed among the capillary tubes 63 and packed between the capillary tube 63 and the heating coil 61 ; and a tern perature sensor 65 sensing the temperature of the graphite powder particles 62 and the n having the controller detected. In order to use instantaneous hot water, the hypocaust flush pipe is connected to a circulation pump for flowing water passing through the hypocaust as hot water into th e circulation pipe 43. The configuration of the circulation pump is not shown in FIG. 4.

The configuration, operation and effect of the present invention as configured ab ove will be described in more detail, hereinbelow. In a condition of supplying source of electricity to the boiler, the operation conditi on of the present invention will be described.

Firstly, water is supplied through the supply pipe 41 and then circulated inside th e case 40 of which heat is reserved by the adiabatic material 50 through the circulation pipe 43. In this case, a large number of the heating rods 45 generate heat by applying so urce of electricity, and the heat is conducted through the graphite powder body 44 pack ed between the circulation pipe 43 and the heating rod 45 so that the water circulating t hrough the circulation pipe 43.

The final end of the circulation pipe 43 is connected to the inflow pipe 46 connect ed to the central heater 60.

The inflow pipe 46 is connected to the circulation pipe 43, and the exit side of wa ter flowing in as the other side thereof is provided with a large number of fine connectio n holes.

These connection holes are connected to a large number of the capillary tubes 6 3 located inside the central heater 60. The sum of the diameters of a large number of the capillary tubes 63 is larger tha n the diameter of the inflow pipe 46. By the reason, the current speed of the water flowi ng through the capillary tube 63 becomes slower than that of the water flowing through t he circulation pipe 43 or the inflow pipe 46.

Further, the heating coil 61 is provided in the center of the central heater 60 and generates heat if voltage is applied through the electrodes 64.

At this time, the heat is conducted by the graphite powder particles 62 packed be tween the heating coil 61 and the capillary tubes 63, and heats water flowing slowly alo ng with the capillary tubes 63.

The reason why the capillary tubes 63 is used is that they reduce the current spe ed of water, thereby increasing a time period for heating the water and each diameter of the capillary tubes 63 is small, thereby more easily heating the water flowing through t he capillary tubes 63.

This is because the contact area of the pipe through which the water flows and t he graphite powder particles 62 may be increased. Accordingly, the low electric power g raphite boiler according to the present invention may increase heat efficiency thereof. As described above, more heated water flowing through the capillary tubes 63 is discharged through the hot-water pipe 48 and the hypocaust incurrent pipe 49, thereby having a user use hot-water and supply heating.

The graphite powder body 44 is a clod having a diameter of more than 1cm and t he graphite powder particles are fine powder of less than 1 mm.

The graphite has an advantage that it has excellent heat conductivity but a disad vantage that it is not heated easily in a condition of the clod, thereby taking the graphite a long time period to be heated by a predetermined temperature.

However, the graphite has higher heat conductivity in a condition of the powder t han that in a condition of the clod. Also, the graphite is heated easily and does not get c old rapidly in the condition of the powder.

In the present invention, by using a characteristic in accordance with granularity, temperature of the graphite is easily increased by preset temperature, thereby maintaini ng the temperature for a longer time period. As described above, on the way to operation in a condition of applying source of electricity, if each temperature of the graphite powder body 44 and the graphite powder particles 62 comes to a predetermined temperature, the controller of the boiler cut off th e source of electricity supplied to the electrodes 47 and 64.

Such temperature is detected by the temperature sensor 70 and 65 inserted into the graphite powder body 44 and the graphite powder particles 62 and detecting temper ature. This enables the controller of the boiler to recognize present temperature informa tion of the graphite powder body 44 and the graphite powder particles 62, thereby auto matically controlling the operation of the boiler.

In general, if the graphite is highly refined, temperature may come to 3600 ^°C . A t emperature is preset below the temperature and then if a temperature comes to the pre set temperature, the source of electricity applied to the electrodes 47 and 64 is cut off.

In the present embodiment, the most suitable preset temperature is set to 350 ^°C for the temperature of the graphite powder particles 62 and 170^°C for the temperature of the graphite powder body 44. Even in such a condition described above, water continues to circulate. If a user wants hot water and heating, supplied water and water circulating in hypocaust is flowe d in the circulation pipe 43 through the supply pipe 41 and the hypocaust flush pipe 42. Herein, the water flowing through the hypocaust flush pipe is hot water, and effici ency is highly increased using this. Next, water circulating through the circulation pipe 43 is heated by the graphite p owder body 44 heated to more than the preset temperature, and then the water flows a gain in the capillary tubes 63 of the central heater 60 through the inflow pipe 46.

At this time, current speed of the water flowing in the capillary tubes 63 is also de creased. Since contact area of the capillary tubes 62 and the heated graphite powder p articles 62 is broad, it is easy to heat the water flowing through the capillary tubes 62. Accordingly, high-temperature hot water may be obtained even in a condition of supplying no electric power to the electrodes 47 and 64, and supplying heating using thi s.

Further, since the graphite powder particles 62 maintains temperature heated rel atively for a long time period in accordance with property thereof, hot water and heating may be supplied without source of electricity for a longer time period, thereby remarkabl y reducing electric power consumption.

Irrespective of the process described above, in order to reduce less the graphite powder body 44 and the electric power consumption, operation of the circulation pump may be stopped. Herein, it is defined to use not heating but hot water.

In this regard, the boiler controller detecting that temperature of the graphite pow der body 44 and the graphite powder particles 62 is more than preset temperature cuts off source of electricity applied to the electrodes 47 and 64. If it is selected to use only h ot water, the boiler controller may control the operation of the circulation pump to stop b y detecting a user setting.

If the circulation pump stops operation, there is no water flowing in the circulation pipe 43 through the hypocaust flush pipe 42. Flowing only water directly supplied from the water pipe through the circulation pipe 43, the water is heated by the heated graphit e powder body 44 and flowing into the capillary tubes 63, the water is heated by the gra phite powder particles 62.

This is because water passing through the hypocaust is not used, thereby obtaini ng cleaner hot water.

In the example, a standard of judgment in which the boiler controller stops operat ion of the circulation pump follows the standard of temperature. detected by the tempera ture sensors 70 and 65. However, since the important thing is substantially the tempera ture of hot water, more sensors are attached inside the hot-water pipe 48 to measure te mperature of hot water, whereby the boiler controller may control operation of the circul ation pump by output of the sensors.

Claims

CLAIMS What is claimed is:

1. A low electric power graphite boiler comprising: a case; a central heater inserted inside central portion of the case to reduce the c urrent speed of the water, having a large area contacted with the supplied water, and heating water for hot water and heating in a condition of no ele ctric power by heated graphite powder particles; a large number of heating rods separated by a predetermined distance fro m the outside of the central heater; an electrode applying source of electricity to the heating rod; a circulation pipe circulating water supplied through a supply pipe and a h ypocaust flush pipe inside the case and being separated by a predetermin ed distance from the heating rods; graphite powder body packed between the heating rod and the circulation pipe, and between the circulation pipe and the central heater; an adiabatic material attached on the entire inner surface of the case; an inflow pipe flowing in water circulated through the circulation pipe to th e central heater; a hot-water pipe supplying water heated by the central heater for hot wate r; a hypocaust incurrent pipe for heating; a temperature sensor controlling operation by sensing temperature of the graphite powder body and then having a controller detected; and a circulation pump being controlled by the controller and flowing water pas sing through the hypocaust into the circulation pipe through the hypocaust flush pipe.

2. The low electric power graphite boiler of claim 1 , wherein the central heat er comprises a heating coil being located in the center portion thereof and generating heat by applying source of electricity through an electrode; a I arge number of capillary tubes being separated by a predetermined distan ce from the heating coil and having current speed of water supplied from t he inflow pipe reduced to sufficiently heat the water; graphite power particl es packed among the capillary tubes and packed between the capillary tu be and the heating coil; and a temperature sensor sensing the temperatur e of the graphite powder particles and then having the controller detected.

3. The low electric power graphite boiler of claim 1 or claim 2, wherein the ce ntral heater comprises a large number of capillary tubes through which wa ter flows in, and the sum of cross-sectional areas of the capillary tubes is I arger than the cross-sectional area of the inflow pipe.

4. The low electric power graphite boiler of claim 1 or claim 2, wherein the co ntroller stops the operation of the circulation pump so that water flowed in through the incurrent pipe is heated and flushed through the hot-water pip e in case of detecting that the sensed result of the temperature sensor is more than the preset temperature and in case that a user presets to use o nly hot water.