KR20010000728U - Heat transfer type boiler using a heat medium - Google Patents

Abstract

The present invention relates to a heat transfer boiler using a heat medium that heats water using a heat medium that generates high heat by low heat, and saves heating costs by extending the heat storage time. A dual body frame each having an inlet pipe and an outlet pipe; An outlet tank installed in communication with the outlet pipe at an upper portion of the inner cylinder; An inlet tank installed in communication with the inlet pipe at a lower portion of the inner cylinder; A circulating pipe communicating with the water outlet tank and the water inlet tank and rotating while having a constant radius; A ceramic tube in which a heater wire electrically connected to an external power source is arranged in a radially inner side of the circulating pipe; A first thermal medium filled in the ceramic tube in a powder state and generating a high temperature by low resistance heat of the heater wire; And a second heat medium filled in the inner cylinder by foam molding and generating heat by the transfer heat of the first heat medium.

Description

Heat transfer type boiler using a heat medium}

The present invention relates to a boiler that pipes a water pipe between a heating element and a heat medium, and heats water flowing through the water pipe by the heat medium, and uses a heating medium that generates high heat by easily reacting to the low heat of the heating element. The present invention relates to a heat transfer boiler using a heating medium which can be used.

Unlike a boiler that directly heats a heating medium, an electrothermal boiler heats the heating medium by heating the medium between the heating element and the heating medium, and heats the heating medium by the heat transferred to the heating medium. It has the advantage of being able to reduce the cost has been widely used in recent years.

Electrothermal boilers using such heat medium have been developed and used in various ways. However, most of them use fossil fuels such as gas, petroleum and coal, or waste or wood fuel, and boilers using fuel need to have a communication structure that communicates with the atmosphere during combustion, which not only complicates the boiler structure but also fuels. There is a problem that toxic gas is generated when burning.

In addition, there is a problem in that a large amount of fuel must be consumed to obtain the required amount of heat for heating the heat medium, and when the amount of heat generated by the combustion of the fuel is actually transmitted to the boiler water and the fuel supplied to the combustion chamber is completely burned. In theory, the ratio of heat generated is generally low. In other words, since most of the heat of combustion generated when fuel burns is dissipated, continuous fuel supply is needed.

In addition, a boiler has been proposed to reduce the heat dissipation by circulating the flow path of the combustion heat in a zigzag to increase the heat of the combustion heat, but this also has a limit to increase the heat, so the fuel consumption rate is high when continuous heating is desired. There is.

In addition, the electric boiler heating the heat medium by electricity has a disadvantage in that a lot of power consumption.

The present invention has been devised in view of the above points, and in particular, an electric heating boiler using a heat medium capable of heating heating water by using a heat medium generating a high heat amount by a low heat amount and extending the heat storage time to save heating costs. The purpose is to provide.

Heat transfer boiler using the heat medium of the present invention having the above purpose is to suspend a ceramic tube with a heater wire wired inside the double cylinder with a heat insulating material between the outer cylinder and the inner cylinder, a plurality of water pipes with different paths to the outside of the ceramic tube. The pipe can be screwed, and the object can be achieved by having a structure in which the ceramic tube and the inner cylinder are filled with two kinds of heat media each having different components.

Furthermore, the present invention can further reduce heating costs by further including a control means for sensing the temperature of the heat medium and controlling the power supplied to the heater wire by the heat of detection.

According to this structure, the heat medium reacts with the low heat generated by the heater wire to generate a high temperature, and the heat can heat the heating water flowing through the water pipe, and the heated fruit can not only heat heat for a long time. The temperature of the heating water can be kept constant by measuring the temperature of the heat medium to interrupt the power supplied to the heater wire.

1 is a longitudinal sectional view showing a boiler structure of the present invention.

Explanation of symbols on the main parts of the drawings

1: boiler 2: main frame

3: outer cylinder 4: inner cylinder

5: heat insulating material 6: water supply tank

7: outlet tank 8: flow pipe

9: ceramic tube 10: heater wire

11: first thermal medium 12: second thermal medium

13 temperature sensor 14 control unit

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a longitudinal sectional view showing the internal structure of a boiler.

The boiler indicated by the entire reference 1 has a cylindrical outer cylinder 3 which is bent in a concave shape with a lower end and an inner cylinder 4 which is installed with a constant distance from the inner wall of the outer cylinder 3, and the upper part thereof. The flange is coupled to the outer cylinder cover (3a) and the inner cylinder cover (4a) of the substantially hemispherical shape, respectively, the main body for blocking the heat transfer to the outside through the heat insulating material (5) in the space between the outer cylinder (3) and the inner cylinder (4) The frame 2 is included.

Inside the boiler (1) sealed by the inner cylinder (4) and the inner cylinder cover (4a), the inlet tank (6) and the outlet tank (7) of approximately hemispherical shape are respectively installed at the upper and lower sides thereof, and these are the circulating pipes (8). By communicating with each other), the cold water flows upward in the intake tank (6) while being heated by the heat generating means described below to be collected in the outlet tank (7).

The circulating pipe 8 connects the withdrawal tank 7 and the intake tank 6 while drawing a turning radius in a constant spiral shape, and the circulating pipe 8 has a plurality of paths different from each other and has approximately three paths. It is desirable to have a path in the direction.

The upper part of the boiler (1) is coupled to the outlet pipe (7a) through which the end is inserted through the outer cylinder cover (3a) and the inner cylinder cover (4a) to a certain depth inside the water discharge tank (7), the lower inlet pipe (6a) It is installed, the cold water flowing through the inlet pipe (6a) is heated while flowing the circulating pipe (8) in a different path from the inlet tank (6) and is collected in the outlet tank (7) and the outlet pipe (7a) It is discharged through.

In the center of the circulating pipe 8 between the water inlet tank 6 and the water outlet tank 7, a ceramic tube 9 into which a heater wire 10 generated by AC power is inserted is suspended. The ceramic tube 9 maintains a constant distance from the circulating pipe 8, and in this embodiment, the capacity of the heater wire 10 uses a capacity of about 1-1.5 KW with low power consumption and generates heat. Maintain about 40-50 ℃.

The ceramic tube 9 has a disc-shaped head 9a having a constant height and a space formed therein, and a tubular body 9b having a predetermined diameter extending downward in the lower portion of the head 9a is in the circumferential direction. It is integrally molded while maintaining the same spacing, and the heater wire 10 is inserted in series with this head 9a and the tubular body 9b. At this time, care should be taken that the heater wire 10 is installed in the center spaced apart from the inner wall of the ceramic tube 9, when the heater wire 10 is in contact with or close to the inner wall of the ceramic tube (9) of the ceramic tube (9) This is because the heater wire 10 may be shortened by condensation that may occur on the inner wall due to a temperature difference from the outside temperature.

In this way, the inside of the ceramic tube 9 to which the heater wire 10 is wired is filled by the first heat medium 11, which is a heat transfer medium. The first heat medium 11 is magnesium, copper, zinc, silicon, calcium, germanium. The mixed powder, such as powder, is easily reacted to the low heat generated by the heater wire 10, and the first heat medium 11 generates heat at a high temperature of about 200 ° C or more by the reaction. Therefore, the cold water flowing through the circulating pipe 8 is heated by the heat generation of the first heat medium 11, which has the advantage of generating high temperature heat with low power consumption.

The second heat medium 12 is filled in the empty space inside the boiler 1 in which the ceramic tube 9 and the circulating pipe 8 are installed. The second thermal medium 12 is a liquid mixture having a component having excellent exothermic performance and heat storage ability, and then foamed with a blowing agent to gradually solidify, but the second thermal medium 12 has a constant porosity to fill air between the pores. As a result, heat exchange with the first heat medium 11 can be performed smoothly, and heat can be accumulated for a long time.

In addition, the embodiment includes a temperature sensor 13 for sensing the temperature inside the boiler, the heater control unit 14 to control the power supplied to the heater wire 10 by the signal detected by the temperature sensor 13 Has

The second heat medium 12 maintains a temperature of approximately 150 ° C. by heat exchange with the first heat medium 11. The heater control unit 14 determines that the temperature of the second heat medium 12 detected by the temperature sensor 13 is increased. In the case of a temperature range between 130-150 ° C., the power supplied to the heater wire 10 is cut off, and if less than that, the temperature is increased by energizing the power. In the figure, reference numeral 15 is a boiler pedestal.

The present invention of this configuration can be heated by connecting the inlet pipe (6a) and outlet pipe (7a) of the boiler (1) with a hot water circulation circuit (not shown). An example of the hot water circulation circuit may be an embedded type for circulating a circulation pipe on the floor of the room, or an external type for connecting with a radiator. When the hot water circulation circuit is directly connected to the water supply, hot water may also be supplied. Explain about.

The heating water heated by the boiler 1 of the present invention is circulated in the hot water circulation circuit by a circulation pump (not shown) and is obtained in the inlet tank 6 through the inlet pipe 6a. The relatively low temperature heating water obtained in the intake tank 6 is heated while returning through each of the circulating pipes 8 having a plurality of flow paths to be collected in the outlet tank 7 at the upper portion thereof, and then the outlet pipe 7a is discharged. It has a circulation cycle discharged to the hot water circulation circuit through.

The heating water introduced into the boiler 1 is heated in the following process while flowing the circulating pipe 8. That is, when power is supplied to the heater wire 10 under the control of the controller 14, the heater wire 10 generates heat at approximately 40-50 ° C., and the heater wire 10 is surrounded by the heat generation. The first thermal medium 11 in a powder state filled in the ceramic tube 9 is heated to about 200 ° C. The high temperature generated while the first heat medium 11 generates heat is transferred to the second heat medium 12 foamed and filled in the inner cylinder 4, and the second heat medium 12 maintains a temperature of about 150 ° C. . Due to the heating process of the heating means, the inside of the boiler 1 is maintained at a high temperature, and the heating water flowing in the circulating pipe 8 embedded in the second heat medium 12 increases the high temperature of the second heat medium 12. The water is collected by the water outlet tank 7 in a heat absorbing state, and then flows through the hot water circulation circuit through the outlet pipe 7a and flows back into the water intake tank 6.

The exothermic temperature of the second heat medium 12 is detected by the temperature sensor 13 during the heat exchange process of the heating water, and the detected temperature value is applied to the controller 14. The control unit 14 compares the temperature value detected by the temperature sensor 13 with a preset reference temperature value and cuts off the power supply of the heater wire 10 when the detection temperature is higher than the reference temperature, and on the contrary, the detection temperature is the reference temperature. If the temperature is lower than the heater wire 10 by supplying power to the heating means to heat the heating water.

Furthermore, since the second heat medium 12 according to the present embodiment has a constant void with foam and air is filled therebetween, the heat transfer speed to the outside is not only fast but also has a long heat storage capacity in the heat transfer state, thereby providing electric power for the heater wire. Reduce waste

In the above embodiment, the internal temperature of the boiler is detected by the temperature of the second heat medium, but as another example, the same effect may be obtained by detecting the temperature of the hot water collected in the outlet tank to interrupt the power supplied to the heater wire.

As described above, the present invention penetrates the water tank provided inside the boiler to insert a heat transfer medium such as gravel to maintain heating water at a constant temperature band for a long time by latent heat radiating from the gravel even after fuel is completely burned. The power consumption for heating the water can be reduced.

Claims (4)

A dual body frame having an outer cylinder and an inner cylinder and having an inlet pipe and an outlet pipe at upper and lower portions thereof, respectively; An outlet tank installed in communication with the outlet pipe at an upper portion of the inner cylinder; An inlet tank installed in communication with the inlet pipe at a lower portion of the inner cylinder; A circulating pipe communicating with the water outlet tank and the water inlet tank and rotating while having a constant radius; A ceramic tube in which a heater wire electrically connected to an external power source is arranged in a radially inner side of the circulating pipe; A first thermal medium filled in the ceramic tube in a powder state and generating a high temperature by low resistance heat of the heater wire; And And a second heat medium filled in the inner cylinder and generating heat by the transfer heat of the first heat medium. The heat transfer type using heat medium according to claim 1, further comprising a temperature measuring means for measuring a temperature inside the main body frame and a control means for controlling power supplied to the heater wire by the temperature measuring means. Boiler. The heat transfer boiler using a heat medium according to claim 1, wherein a plurality of the circulating pipes connecting the water outlet tank and the water inlet tank are installed. The heat transfer boiler according to claim 1, wherein the second thermal medium is filled in the inner cylinder by foam molding.