KR20050090031A - Medium-sized electric boiler - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric boilers and, more particularly, to medium electric boilers that provide heating and hot water to medium areas such as small factories or small officetels.

Accordingly, the present invention provides a heat insulating case, a raw water inlet for introducing raw water into the inside of the heat insulating case, a heat exchanger for heating raw water introduced by the raw water inlet, and hot water heated by the heat exchanger to the outside or a heating pipe. A hot water outlet and a non-broadcast water outlet, a check valve for controlling hot water discharged through the hot water outlet and a non-broadcast water outlet, a circulation motor for increasing a flow rate of hot water discharged from the heating pipe, and a hot water circulated through the heating pipe. A heating inlet and a hot water inlet, which are inlets into the insulation case, an inlet controller for controlling hot water inflow into the heating and inlet and the hot water inlet, and sensing the temperature of the hot water in the insulation case space and the hot water in the heat exchanger. And a temperature sensor for controlling the power supplied to the heat exchanger according to the result. .

Accordingly, the present invention is easy to maintain and replace the heating and heat exchanger of a small factory or a small officetel by using all the raw water inside the insulation case as heating water.

In addition, by using a large number of hot water supply heat exchanger with a small amount of power use, it is advantageous to supply rapid heating and hot water by heating a small amount of raw water, heat efficiency is improved by heating the raw water in the heat insulation case by the hot water supply heat exchanger.

Description

Medium-sized electric boiler

The present invention relates to an electric boiler, and more particularly, to a medium-sized electric boiler that provides heating and hot water to a small factory or workplace, and can reduce power consumption.

In general, the electric boiler is configured in such a way that when the heater directly heats the raw water or heat is generated from the heater, the heat medium amplifies the heat of the heater to heat the raw water.

Thus, the present inventor has proposed an electric boiler and related technologies through patent application 10-2003-0059699.

However, such a conventional electric boiler is limited to the heat exchanger capacity of the amount of raw water that can be heated, there is a problem that the maintenance and power consumption is large because the amount of heat medium is used.

In view of the above problems, the present invention has a large amount of raw water that can be heated, and an object of providing an electric boiler having good thermal efficiency while using less heat medium.

In addition, another object of the present invention is to provide an electric boiler with low power consumption and easy maintenance of the electric boiler.

The present invention for achieving the above object is an insulating case, a raw water inlet for introducing raw water (cold water) into the inner side of the heat insulating case, a heat exchanger for heating the raw water introduced by the raw water inlet, by the heat exchanger Hot water outlets and non-broadcast water outlets for discharging heated hot water to the outside or heating pipes, check valves for controlling hot water discharged through the hot water outlets and non-broadcast water outlets, and circulation motors for increasing the flow rate of hot water discharged from the heating pipes. And a heating return port and a cold water return port, which are inlets of the hot water circulated through the heating pipe, and a hot water temperature of the raw water and the heat exchanger in the thermal insulation case space and are supplied to the heat exchanger according to the result. It is characterized by including a temperature sensor for controlling the power source.

An embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

Figure 1 is a cross-sectional view of the configuration of a medium-sized electric boiler according to an embodiment of the present invention, as shown in the present invention is a heat insulating case 10, the heat insulating material filled inside the heat insulating case 10 to block the external leakage of internal heat 20, the plate 190 which is built at a predetermined height in the inner bottom of the heat insulating case 10, the raw water inlet 30 for introducing raw water into the heat insulating case 10, the raw water inlet 30 through the inlet Hot water supply heat exchanger and heat exchanger (40,50) for heating the raw water, hot water outlet (60) for flowing out the hot water heated by the heat exchanger (50), hot water heat exchanger and heat exchanger (40, The non-broadcasting water outlet 70 which is the outlet of the hot water heated by 50) to the heating pipe 100, the check valve 80 which controls the hot water which flows out into the hot water outlet 60, the said non-broadcasting water outlet 70, and a hot water outlet Circulating motor 90 for increasing the flow rate of hot water discharged through 60, the The hot water leaked through the non-broadcasting water pit 70 passes through the heating pipe 100, and then the heating return port 110, which becomes an inlet into the heat insulation case 10, supplies hot water through the heating pipe 100. A hot water return port 120 to be introduced into the heat exchanger 40, an inlet water distributor 150 to control the hot water inlet to the hot water return port 120 and the heating return port 110, the hot water return port ( The hot water pipe 160, which is a hot water moving path into the heat insulating case 10 and the hot water heat exchanger 40, of the hot water through 120, the hot water temperature of the hot water in the heat insulating case 10 and the hot water pipe 160. The temperature sensor 140 for controlling the power supplied to the hot water supply heat exchanger and the heat exchanger (40,50) according to the result and the magnitude of the supply voltage according to the hot water temperature inside the heat insulation case detected by the temperature sensor It consists of an automatic voltage regulator 180 to control the.

Hereinafter, the configuration of an embodiment of the present invention configured as described above in more detail.

The heat insulation case 10 has an integrated structure of an ellipse shape, and the upper center portion is provided with a plurality of ellipses for installing a plurality of heat exchangers 40 and 50, and the inside of the heat insulation case 10 is a heat insulator 20. It prevents the heat of the filled hot water from flowing out.

The heat insulation case 10, the bottom plate portion of the raw water inlet 30, which is an inlet for raw water (cold water), hot water outlet 60 for discharging hot water, a non-broadcasting water outlet 70 for discharging the heating water to the heating pipe 100 In addition, a heating return port 110 and a hot water return port 120 for introducing the heating water circulated through the heating pipe 100 into the heat insulation case 10 and the heat exchangers 40 and 50 are provided.

In addition, one side of the heat insulating case 10 is provided with a temperature sensor 140 for measuring the hot water temperature in the heat insulating case 10 and the hot water circulating in the hot water supply heat exchanger 40, the temperature sensor 140 By detecting the hot water temperature in the heat insulating case 10 and the hot water heat exchanger 40 by a) serves to control the power supply and cut off of the heat exchanger (40, 50).

The top plate of the heat insulation case 10 is provided with an automatic voltage control device 180, which is supplied to the heat exchanger (40, 50) according to the hot water temperature inside the heat insulation case (10) detected by the temperature sensor (140). Control the magnitude of the voltage.

In addition, the inner bottom of the heat insulation case 10 is provided with a plate of a predetermined height (not shown), the plate is heat loss of the existing heated hot water by the raw water (cold water) that is introduced into the heat insulation case 10. In short, it serves to supply rapid heating water and hot water.

2 to 4 are detailed views of the heat exchanger according to the embodiment, and as shown, the hot water supply heat exchanger and the heat exchanger 40 and 50 are provided.

As shown in Figure 3 and Figure 4, the hot water heat exchanger 40 is installed a plurality inside the heat insulating case 10, a cylindrical heat transfer case 41, a predetermined distance spaced in the inner side of the heat transfer case 41 The outer case 42 which is located, the inner case 43 spaced a predetermined distance inside the outer case 42, the heat transfer case 41 and the outer case 42 and the outer case 42 and the inner case 43 ) Between, the heat medium 44 filled in the inner case 43, the heat medium 44 is inserted between the heat transfer case 41 and the outer case 42, the end of the heat pipe (160) A water pipe 45 connected to the heater 46, a heater 46 inserted into a center of the heat medium 44 filled between the outer case 42 and the inner case 43, and an electrode supplying power to the heater 46 ( 47).

The hot water supply heat exchanger (40) is preferentially operated for rapid heating of hot water introduced through the hot water heat pipe (160), and the hot water heated by the hot water supply heat exchanger (40) to the hot water outlet (60). It is used to move from the outside to shower water, drinking water, water supply and heating, the hot water heat exchanger 40 and the heated heat pipe (160) serves to heat the hot water in the heat insulating case (10).

As shown in FIG. 2, the heat exchanger 50 heats the raw water in the heat insulation case 10 to be used only as heating water, and has a cylindrical outer case 42 and a predetermined distance inside the outer case 42. The heat medium 44 filled between the inner case 43 and the outer case 42 and the inner case 43 spaced apart from each other, and the heat medium filled between the outer case 42 and the inner case 43. The heater 46 is inserted into the center of the 44, and the electrode 47 for supplying power to the heater 46.

In addition, the heat exchanger case 10 may be replaced with a heat exchanger and a diaphragm or a heat cycler (not shown) may be installed. The heat cycler may have a structure similar to that of the hot water supply heat exchanger 40. The heat circulation pipe opened at the upper and lower portions at the portion 45 was located to circulate the upper and lower hot water with the heating of the hot water inside the heat insulation case 10 of the hot water supply heat exchanger and the heat exchanger (40, 50). Overload can be prevented.

The hot water supply heat exchanger 40 is provided in plural or more than the heat exchanger 50, the heat circulator is installed one regardless of the capacity, the hot water supply heat exchanger 40 is compared to the heat exchanger (50) It is characterized by low voltage capacity.

In addition, the heat medium 44 filled with each of the heat exchangers 40 and 50 and the thermocycler is a conductor that amplifies the heat of the heater 46, and uses the graphite in a nano state. 50), and the heat circulator to efficiently transfer the heat of the heater 46 to the raw water to serve to heat.

The upper part of the hot water heat exchanger and the heat exchanger (40, 50) and the heat circulator is an elliptical diameter larger than the outer case 42 and the lower portion of the heat insulating case 10 so as to be easily fixed to the top plate of the heat insulating case 10. The edge plate 48 has a plurality of grooves on the side of the edge plate 48 so as to be easily fixed and dismantled by bolts and nuts to the heat insulation case 10.

In addition, by inserting a packing 130 made of asbestos rubber between the rim plate 48 and the top of the heat insulating case 10, damage or electric shock caused by the inflow of hot water into each heat exchanger (40, 50) and the thermocycler. Prevent danger.

Each of the heat exchanger (40, 50) and the heater 46 in the heat circulator can use both direct current and alternating current, and the thermal conductivity is installed in a fixed contact state on the inner side of the outer case 31 and the outer side of the inner case (32) This gets better.

The inflow water distributor 150 controls the inflow of hot water passing through the heating pipe 100 into the heat insulation case 10 or the inflow into the quench pipe 160.

In addition, the automatic voltage regulator 180 serves to adjust the amount of voltage supplied to the heat exchangers 40 and 50 and the thermocycler according to the hot water temperature inside the heat insulation case 10.

Hereinafter, the operation of the embodiment of the present invention as described above will be described in detail.

First, when the user turns on the boiler configured as described above for heating at a predetermined temperature, power is supplied to the heat exchanger 50 and the thermocycler, and raw water is introduced into the insulation case 10 through the feed water supply pipe. In addition, the heat exchanger 50 and the heater 46 in the thermocycler are heated by the power transmitted through the electrode 47.

When the heater 46 of the heat exchanger 50 and the heat circulator 170 is heated, the heat medium 44, the outer case 42, and the inside of the outer case 42 directly contacting the heater 46 are heated. The case 43 is heated in the order of the heat medium 44 inside the inner case 43, and the heat of the heater 46 is transferred to the heat exchanger 50 and the entire thermocycler by the heat medium 44.

The raw water introduced into the heat insulating case 10 is heated by the heat exchanger 50 and the heat circulator which are heated by the heater 46 and the heat medium 44.

Then, when the hot water in the heat insulation case 10 is above a predetermined temperature set by the user, the power supply to the heat exchanger 50 and the heat circulator is cut off by the temperature sensor 140 attached to the heat insulation case 10. When the hot water in the heat insulation case 10 is below a predetermined temperature, power is supplied to the heat exchanger 50 and the thermal circulator again by the temperature sensor 140 to heat the hot water.

At this time, the magnitude of the voltage supplied to the heat exchanger 50 and the thermocycler is adjusted according to the hot water temperature inside the heat insulation case 10.

As such, the raw water in the heat insulating case 10 heated by the heat exchanger 50 and the heat circulator is transferred to the heating pipe 100 through the non-broadcasting pit 70, and after heating, flows through the circulation motor 90. Obtained heating water is re-introduced into the heat insulating case 10 through the heating return port 110 in the inlet water distributor 150.

The heating water temperature re-introduced into the heat insulation case 10 is lower than the hot water temperature when leaving the non-broadcasting water pit 70 and lowers the hot water temperature inside the heat insulation case 10, by the user by the temperature sensor 140. In order to raise the temperature to the predetermined temperature, the heat is exchanged to the heat exchanger 50 and the thermocycler, and the hot water is reheated.

If the user needs hot water and hot water heating, if the water heating and hot water switch (not shown) of the control panel is operated, the raw water flows into the heat insulation case 10 and the heat pipe 160, and is used for hot water supply. Power is simultaneously supplied to the heat exchanger, heat exchanger (40, 50) and the thermocycler.

In this case, the heat exchanger 50 operates as described above, and the raw water passing through the inside of the hot water supply heat exchanger 40 is directly heated by heating the raw water heat pipe 160 to heat the heat exchanger ( It is heated faster than the raw water in the heat insulating case 10 heated by 50) and reaches the temperature of the hot water and the hot and cold water set by the user.

Finally, when the hot water in the heat supply pipe 160 of the hot water heat exchanger 40 is detected by the temperature sensor 140 as a user set temperature, the hot water heat exchanger 40 The power supply is cut off.

Thereafter, the hot water heated by the hot water supply heat exchanger 40 is discharged through the hot water discharge port 60, and then used as a shower or drinking water by the check valve 80, or transfer to the heating pipe 100. It is used for rapid heating.

The hot water transferred to the heating pipe 100 is circulated by the circulating motor 90 after heating, and then is transferred to the quench pipe 160 through the hot water return port 120 in the inlet water distributor 150, The hot water in the insulation case 10 is reheated until the temperature set by the user.

Then, when the hot water in the heat insulation case 10 is heated by the heat supply pipe 160, the heat circulator, the hot water heat exchanger and the heat exchangers 40 and 50 to reach a heating temperature set by the user, the hot water heat exchanger 40 ) Power supply is interrupted, and the hot water in the heat insulation case 10 flows out into the hard broadcasting water pipe and is heated.

As such, the hot water supply heat exchanger 40 is stopped when hot water or heating temperature determined by the user is reached when hot water and heating are required.

Subsequently, when only the heating operation is performed, when the hot water in the heat insulation case 10 heated by the heat circulator, the hot water heat exchanger, and the heat exchangers 40 and 50 reaches a predetermined temperature, the hot water heat exchanger 40 The power supply to) is completely stopped.

The automatic voltage regulator 170 detects the temperature of the hot water in the heat insulation case 10 by the heat cycler, circulation of the heat and hot water in the heat insulation case 10, and the heat exchanger 50. Maintaining a constant temperature and supplying power and shutting off by the voltage supply by, the operation of the heat exchanger 50 is operated as described above.

As described above, the present invention has an advantageous effect on heating of a small factory or a small officetel by using all the raw water inside the insulation case as the heating water.

In addition, the present invention uses a large number of hot water exchanger with a small amount of electric power consumption, and is advantageous in supplying rapid heating and hot water by heating a small amount of raw water, and heat efficiency is also increased by heating raw water in the heat insulation case by the hot water heat exchanger and thermocycler. It has a good effect.

Finally, the present invention has the effect of easy maintenance and replacement of the hot water supply heat exchanger and heat exchanger and thermocycler.

1 is a cross-sectional view of the construction of a medium electric boiler according to the present invention.

FIG. 2 is a detailed sectional view of the heat exchanger in FIG. 1. FIG.

FIG. 3 is a detailed sectional view of the heat exchanger for hot water supply in FIG.

4 is a cross-sectional view along the line AA ′ in FIG. 3.

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

10: insulation case 20: insulation

30: raw water inlet 40: hot water heat exchanger

41: heat transfer case 42: outer case

43: inner case 44: thermal medium

45: water pipe 46: heater

47: electrode 48: border plate

50: heat exchanger 60: hot water outlet

70: inaccessible water hole 80: check valve

90: circulation motor 100: heating pipe

110: heating return hole 120: hot water return hole

130: packing 140: temperature sensor

150: inlet water distributor 160: rapid heat pipe

180: automatic voltage regulator

Claims (4)

In a boiler in which a heat exchanger for heating raw water is provided inside an insulation case having a heat insulating material, and hot water heated by the heat exchanger is circulated by a shower water or a circulating motor and used as heating water. In addition to the heat exchanger for heating the raw water filled in the heat insulation case, a hot water supply heat exchanger having a hot water heating tube coupled to the outside to be used for hot water, and check the circulation motor to selectively use the hot water and hot water Medium electric boiler comprising a valve and a distributor. The medium-sized electric boiler according to claim 1, wherein the hot water supply heat exchanger is installed in plural or more than the heat exchanger for heating the water in the heat insulation case. According to claim 2, wherein the body of the hot water heat exchanger is formed of a heat transfer case, an outer case, an inner case, a border plate, graphite, a heater, an electrode, and has a water pipe for circulating hot water used for hot water supply to the body, Medium electric boiler characterized in that it further comprises a rapid heat pipe between the water pipe and the circulation motor. The hot water supply pipe of claim 3, wherein the hot water supply pipe and the circulation motor have a check valve for discharging the hot water to the outside when the hot water is used, and supplying the hot water to the circulation motor when the hot water is not used, and the hot water pipe for heating and hot water flowed into the circulation motor. B. A medium-sized electric boiler comprising an inflow water distributor for distributing and supplying the inner case.