KR20040107569A - Low Electric Power Graphite Boiler - Google Patents

Abstract

PURPOSE: A low power graphite boiler is provided to realize instantaneous hot water supply by separating a heating pipe for heating the floor from a hot duct for supplying hot water. CONSTITUTION: A low power graphite boiler comprises a case(40), a central heating part(60) inserted to the case and boiling the water in no-power state using heated graphite powder, many heating bars(45) placed outside the central heating part, an electrode(47) supplying power to the heating bars, a circulating pipe(43) for circulating the water through the case, graphite powder(44) filled between the circulating pipe and the central heating part and between the heating bars and the circulating pipe, an insulating material(50) attached to the inner front face of the case, an inlet pipe(46) guiding the water circulating through the circulating pipe into the central heating part, a hot duct(48) and a heating floor water inlet pipe(49), and a temperature sensor(70) sensing the temperature of the graphite powder.

Description

Low Electric Power Graphite Boiler

The present invention relates to a low-power graphite boiler, and more particularly, to a low-power graphite boiler that can supply heating and hot water by using the heat of the graphite powder heated while the boiler is not operating using the graphite powder which is easy to heat. .

Conventional boilers have used graphite tubes to provide heating and hot water while the boiler is not powered. Such an example is described in Registered Utility Model Publication No. 20-0284929. Referring to this, a conventional boiler will be described in detail as follows.

1 is an overall assembly cross-sectional view of a conventional boiler, Figure 2 is a cross-sectional view of the direction A in Figure 1, Figure 3 is a perspective view of the heating means and hot water pipes, as shown in the outer case 1 made of a constant size The graphite medium 2 'filled with graphite medium 2' is filled with a high pressure inside the inner portion of the graphite tube 2 'so as to overlap with the heat insulating material 3 covering the outside at regular intervals 4, but the electrode inside the graphite tube 2 ( 5) The heating rods 6 and 6 'which are connected to each other are distributed in the center and surroundings, and the hot water coil 7 wound in a cylindrical shape is inserted into the gap 4 so that the inlets 7' and the outlets of both ends are inserted. (7 ") are respectively discharged out of the case (1), and in the upper part of the case (1), a replenishment water tank combined cover (9) to which a replenishing water pipe (8) is connected is installed and circulated on one side of the hot water coil (7). It is a structure made by connecting the pump (10).

In the drawing, reference numeral 11 denotes a working fluid, and 12 denotes a wire connected to the electrode 5 of the heating rods 6 and 6 '.

The conventional boiler is thus capable of continuously supplying room heating and hot water supply for a predetermined time without power consumption by using the heat stored in the graphite medium 2 'around the heating rods 6 and 6'. It is composed. The embodiment according to this will be described in more detail as follows.

In the installation and use of a conventional boiler, hot water is first wound in a cylindrical shape to the inside and the outside of the heating rods 6 and 6 'so that the inlet 7' and the outlet 7 "flow out to the outside of the case 1. The working fluid 11 is filled in the coil 7 and the replenishing water tank combined cover 9 fixedly installed on the upper part of the case 1.

Here, the working fluid 11 filled in the supplementary water tank combined cover 9 installed on the upper part of the case 1 is a working fluid filled in the hot water coil 7 according to the use of the supplementary water concept commonly seen in a boiler. When the evaporation (11) evaporates, the working fluid 11 inside the cover 9 is automatically supplied to the inside of the hot water coil 7 along the supplemental water pipe 8 by the potential energy by the amount of evaporation, and thus the hot water coil 7 The working fluid 11 therein serves to keep the circulation always by a certain amount.

As described above, after the boiler is installed, it is possible to operate the boiler by connecting the electric wire 12 drawn out of the case 1 from the electrodes 5 of the heating rods 6 and 6 'with the power source. When the power is supplied through the wire 12, the heating rods 6 and 6 ′ distributed in the center and the surroundings are heated inside the graphite tube 2 while the power is supplied to the inside of the graphite tube 2 at a high pressure. The filled graphite medium 2 'and the cylindrically wound hot water coil 7 inserted between the gaps 4 formed on the inside and the outside of the heating rods 6 and 6' are heated to heat the hot water coil 7 The working fluid 11 inside is warmed up.

At this time, since the circulation pump 10 is connected to the hot water coil 7, the working fluid 11 inside the hot water coil 7 is circulated along the pipe line so that the overall temperature is uniform.

When the overall temperature of the working fluid 11 inside the hot water coil 7 becomes uniform in the above-described operation, high temperature heat is accumulated in the graphite medium 2 'filled with high pressure inside the graphite tube 2. will be.

That is, the graphite medium 2 'is a black body having a metallic gloss formed by combining carbon atoms. The graphite medium 2' has a high heat resistance, and conducts electricity and heat well, and is used in various fields as an electric material. It uses the thermal properties of.

According to the experiment, when the working fluid 11, that is, the total temperature of water, is 90 to 100 ° C, the temperature of the graphite medium 2 'inside the graphite tube 2 is increased by about 400 to 500 ° C.

Therefore, the heat inside the graphite tube 2 is accumulated in a state in which heat radiation to the outside is prevented to the maximum by the heat insulator 3 covering the outside thereof, thereby continuously supplying heat to the hot water coil 7 for a predetermined time.

Therefore, even when the operation of the boiler is stopped by the above-described action, the working fluid 11 inside the hot water coil 7 is maintained without dropping in temperature, thereby continually supplying room heating and hot water for a predetermined time without consuming power. It will be able to provide.

In this case, the heat insulator 3 is made of ordinary flame retardant urethane having excellent heat insulation effect, and the outer case 1 is made of stainless steel resistant to corrosion.

However, the conventional boiler as described above has a problem in that it is not possible to obtain clean hot water as well as supplying water used for heating, that is, water flowing into and out of the ondol, as a hot water function.

In addition, it takes a long time to heat the graphite tube, due to its characteristics, the heat is quickly cooked, there is a short time that can be hot water and heating without supplying power.

The present invention in view of the above problems is to provide a low-power graphite boiler that can use the instant hot water function by separating the hot water pipe for using hot water and the heating tube entering and exiting the ondol for heating.

In addition, another object of the present invention is to use a graphite powder powder, it is possible to quickly heat the graphite powder powder, it is configured not to cool easily low power graphite boiler that can increase the supply time of hot water and heating in the non-power state In providing.

The present invention and the case for achieving the above object; A central heating unit inserted into a central portion of the case to reduce the flow rate of water and to heat the water in a non-powered state by heated graphite powder powder having a large area in contact with the water to be supplied to the water to be used for hot water and heating; A plurality of heating rods spaced apart from the central heating unit by a predetermined distance; An electrode for supplying power to the heating rod; A circulation pipe configured to circulate water supplied through the water supply pipe and the on-outwater pipe in the case, and spaced apart from the heating rod by a predetermined distance; A graphite powder filled between the heating rod and the circulation tube and between the circulation tube and the central heating portion; A heat insulating material attached to an inner front surface of the case; An inlet pipe for introducing water circulating through the circulation pipe to the central heating unit; A hot water pipe for supplying the heated water through the central heating unit to hot water, and an on-load inlet pipe for performing heating; It is characterized in that it comprises a temperature sensor for sensing the temperature of the graphite powder body to control the operation by recognizing the result.

1 is an overall assembly view of a conventional graphite boiler.

FIG. 2 is a sectional view taken along the line A-A in FIG. 1; FIG.

Figure 3 is in Figure 1, Figure 3 is a perspective view of the heating means and hot water pipes.

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

5 is a cross-sectional view taken along the line AA ′ in FIG. 4.

* Description of the symbols for the main parts of the drawings *

40: case 41: water supply pipe

42: hot water outlet pipe 43: circulation pipe

44: graphite powder 45: heating rod

46: inlet pipe 47, 64: electrode

48: hot water pipe 49: hot water inlet pipe

50: insulation 60: central heating unit

61: heating coil 62: graphite powder

63: fine tube 65, 70: temperature sensor

When described in detail with reference to the accompanying drawings an embodiment of the present invention configured as described above are as follows.

4 is a side cross-sectional view of the low-power graphite boiler of the present invention, and FIG. 5 is a cross-sectional view taken along the line A-A 'in FIG. 4, and a case 40 as shown therein; A central heating part 60 inserted into an inner central part of the case 40 to warm water supplied in a non-powered state by heated graphite powder powder so as to be used for hot water and heating; A plurality of heating rods 45 spaced apart from the central heating unit 60 by a predetermined distance; An electrode 47 for supplying power to the heating rod 45; A circulation pipe 43 for circulating water supplied through the water supply pipe 41 and the on-going water pipe 42 in the case 40, and spaced apart from the heating rod 45 by a predetermined distance; Graphite powder body 44 filled between the heating rod 45 and the circulation pipe 43 and between the circulation pipe 43 and the central heating part 60; A heat insulating material 50 attached to an inner front surface of the case 40; An inlet pipe 46 for introducing water circulating through the circulation pipe 43 into the central heating part 60; A hot water pipe 48 for supplying water heated through the central heating unit 60 to hot water and an on-flow water inlet pipe 49 for heating; It consists of a temperature sensor 70 for sensing the temperature of the graphite powder body 44.

The central heating unit 60 is located in the central portion of the heating coil 61 for generating heat when the power is supplied through the electrode 64; A microtube (63) spaced apart from the heating coil (61) by a predetermined distance and positioned in a plurality, and slowing the flow rate of water supplied from the inlet pipe (46) to allow sufficient heating; Graphite powder powder 62 filled between the microtubes 63 and in the microtubes 63 and the heating coil 61; It consists of a temperature sensor 65 for sensing the temperature of the graphite powder powder (62).

In order to use the hot water, a circulation pump for connecting the hot water passed through the ondol, which is hot water, to the circulation pipe 43 is connected to the ondol water pipe. The configuration of the circulation pump is omitted in the drawing.

Hereinafter, the structure of the present invention configured as described above and its operation and effects will be described in more detail.

The operating state of the boiler of the present invention in a state where power is supplied to the boiler will be described.

First, water is supplied through the water supply pipe 41, which circulates in the boiler case 40 that is insulated with the heat insulating material 50 through the circulation pipe 43.

In this case, power is supplied to the plurality of heating rods 45 to generate heat, and the heat is conducted through the graphite powder body 44 filled between the circulation pipe 43 and the heating rod 45. The water circulating through the circulation pipe 43 is heated.

The final end of the circulation pipe 43 is connected to the inlet pipe 46 is connected to the central heating unit 60.

The inlet pipe 46 is connected to the circulation pipe 43, and the outlet side of the inflowed water, which is the other side, has a plurality of fine connectors.

This connector is connected to a plurality of microtubules 63 located in the central heating part 60.

The sum of the diameters of the plurality of microtubes 63 is greater than the diameter of the inlet pipe 46, whereby the flow rate of water flowing through the microtubes 63 is the circulation pipe 43 or the inlet pipe 46. It will be slower than the flow rate of water flowing through.

In addition, a heating coil 61 is provided at the center of the central heating part 60 and generates heat when a voltage is supplied through the electrode 64.

The heat at this time is conducted by the graphite powder powder 62 filled between the heating coil 61 and the microtube 63 to heat the water flowing slowly along the microtube 63.

The reason for using the microtubules 63 is to reduce the flow rate of the water, increase the time for heating the water, and because the diameter of each of the microtubules 63 is small, the water flowing through the microtubules 63 is further increased. This is because it can be easily heated.

This is because the contact area between the pipe through which water flows and the graphite powder powder 62 which is a means of heating can be increased, and accordingly, the thermal power of the low power graphite boiler according to the present invention is improved.

As such, the heated water flowing through the microtube 63 is discharged through the hot water pipe 48 and the on-flow water inlet pipe 49, which enables the user to use hot water and perform heating.

The graphite powder body 44 is a lump having a diameter of 1 cm or more, and the graphite powder powder 62 may be defined as a fine powder of 1 mm or less.

Although the graphite has an advantage of excellent thermal conductivity, there is a problem that it takes a long time until the graphite is heated to a predetermined temperature because it is not easily heated in the lump state.

However, in the powder state, the thermal conductivity is better than in the lump state, and is easily heated and does not cool quickly.

In the present invention, it is possible to easily increase the temperature of the graphite powder to a proper temperature by using the properties according to the particle size of the graphite, and to maintain the temperature for a longer time.

When the graphite powder 44 and the graphite powder 62 reach a predetermined temperature while operating in a state where power is supplied as described above, the boiler controller controls the electrodes 47 and 64 at a predetermined temperature. Shut off the power supply.

The temperature is detected by the temperature sensor 70, 65 inserted into the graphite powder 44 and the graphite powder 62 to detect the temperature, which is currently present in the boiler controller. By recognizing the temperature information of the 44 and the graphite powder 62, it is possible to automatically control the operation of the boiler.

When the graphite is highly refined, it can reach a temperature of 3600 ° C., and the set temperature below this is set, and when the set temperature is reached, the power supplied to the electrodes 47 and 64 is cut off.

In this embodiment, the optimum set temperature is set at 350 ° C. for the graphite powder 62 and 170 ° C. for the graphite powder 44.

Even in this state, the circulation of water may be continued, and when the user desires hot water and heating, the water supplied and the water circulating ondol are supplied to the circulation pipe 43 through the water supply pipe 41 and the ondol water pipe 42. Inflow).

At this time, the water introduced through the on-out water pipe 42 is hot water, by using it can be more efficient.

Then, the water circulated through the circulation pipe 43 is heated by the graphite powder body 44 heated above the set temperature, which in turn passes through the inlet pipe 46 of the central heating unit 60. Flow into the customs (63).

At this time, the flow rate of water introduced into the microtube 63 is reduced, and the contact area between the microtube 62 and the heated graphite powder powder 62 is wide, thereby heating the water flowing through the microtube 62. This is facilitated.

Accordingly, hot water at a high temperature can be obtained even when power is not supplied to the electrodes 47 and 64, and heating can be performed using the hot water.

In addition, since the heated temperature may be maintained for a relatively long time according to the characteristics of the graphite powder powder 62, hot water may be obtained in a non-powered state for a longer period of time, and heating may be performed to significantly reduce power consumption. Can be lowered.

Apart from the above process, the operation of the circulation pump may be stopped in order to lower the graphite powder body 44 and the power consumption. In this case, it can be considered to be limited to the case where only hot water is used without heating.

This is because the boiler control unit that the temperature of the graphite powder 44 and the graphite powder 62 detects a temperature higher than the set temperature cuts off the power supplied to the electrodes 47 and 64, and determines the user's setting. If only hot water is selected, the circulation pump can be controlled to stop the operation.

When the circulation pump stops operation, there is no water flowing into the circulation pipe 43 through the on-going water pipe 42, and only the water directly supplied from the water pipe flows through the circulation pipe 43, thereby heating the heated graphite powder ( 44 is heated by the graphite powder powder 62 which is heated by 44 and flows into the microtube 63 and is heated.

This results in cleaner hot water because no water is passed through the ondol.

The above example is based on the temperature sensed by the temperature sensors 70 and 65 as a criterion for the boiler control unit to stop the operation of the circulating pump. A sensor capable of measuring the temperature of hot water may be further attached to the inside of the hot water pipe 48 so that the boiler controller may control the operation of the circulation pump by the output of the sensor.

As described above, the present invention can use the heat capacity characteristics of the heated graphite powder, it is possible to perform hot water and heating even in a non-powered state for a long time, there is an effect of reducing the power consumption.

In addition, by using the heating coil as a means for heating the graphite powder, it is possible to easily heat the graphite powder to a set temperature by generating a high heat than the same supply power, thereby reducing the power consumption.

By reducing the flow rate of the water along the path through which the water heated by the thermal conduction of the graphite powder passes, the structure is changed to have a large contact area with the graphite powder to obtain higher thermal efficiency. It is effective to get hot water.

Claims (4)

A case; A central heating unit inserted into a central portion of the case to reduce the flow rate of water and to heat the water in a non-powered state by heated graphite powder powder having a large area in contact with the water to be supplied to the water to be used for hot water and heating; A plurality of heating rods spaced apart from the central heating unit by a predetermined distance; An electrode for supplying power to the heating rod; A circulation pipe configured to circulate water supplied through the water supply pipe and the on-outwater pipe in the case, and spaced apart from the heating rod by a predetermined distance; A graphite powder filled between the heating rod and the circulation tube and between the circulation tube and the central heating portion; A heat insulating material attached to an inner front surface of the case; An inlet pipe for introducing water circulating through the circulation pipe to the central heating unit; A hot water pipe for supplying the heated water through the central heating unit to hot water, and an on-load inlet pipe for performing heating; A temperature sensor which senses the temperature of the graphite powder and recognizes the result of the graphite powder to control the operation; The operation is controlled by the control unit and the low-power graphite boiler, characterized in that configured as a circulating pump for introducing the water passing through the ondol through the ondol water pipe to the circulation pipe. The heating apparatus of claim 1, wherein the central heating unit comprises: a heating coil positioned at a central portion thereof to generate heat when power is supplied through the electrode; A plurality of microtubes spaced apart from the heating coil at a plurality of distances, and configured to slow down the flow rate of water supplied from the inlet pipe to allow sufficient heating; Graphite powder powder filled between the microtubes and in the microtubes and the heating coil; And a temperature sensor configured to sense the temperature of the graphite powder and recognize the result to the controller. The low-power graphite boiler according to claim 1 or 2, wherein the central heating unit includes a plurality of microtubes into which water is introduced, and the sum of the cross-sectional areas of the microtubes is larger than that of the inlet pipe. According to claim 1 or claim 2, wherein the control unit is detected by the temperature sensor as a result of the set temperature or more, the user stops the operation of the circulation pump when the user is set to use only hot water, the water introduced through the inlet pipe The low-power graphite boiler, characterized in that the warmed water can be discharged through the hot water pipe.