KR20030088400A - Electric boiler capable of heating momentarily - Google Patents

Abstract

PURPOSE: An instant hot water electric boiler is provided to heat inflow water to a predetermined temperature within a short time period by exchanging heat between circulating water and the inflow water. CONSTITUTION: A first pipe group(15), a second pipe group(17), and a third pipe group(19) are disposed within a heat exchanger(13). A first cap(21) and a second cap(31) are disposed at the front and rear of the heat exchanger. A heat accumulating water pipe(41) is disposed at the side surface of the heat exchanger. A pump(P) and a plurality of heaters(43) are mounted at the heat accumulating water pipe. An automatic air vent(54) is mounted at the heat accumulating water pipe, and automatically discharges air contained in the heat accumulating water to outside before heat accumulating water heated by the heaters is supplied to the heat exchanger. A first temperature sensor(47) and a second temperature sensor(49) are mounted at the heat exchanger and a hot water outlet(39) of the second cap(31), respectively, and prevent the overheat of the heat exchanger.

Description

Electric boiler capable of heating momentarily

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to an instantaneous hot water electric boiler, and more particularly, inflow water flowing along a pipeline and circulating water circulating out of the pipeline exchange heat with each other by indirect heating using a counterflow heat exchanger. An instant hot water electric boiler which can be heated and discharged in a very short time.

Referring to FIG. 1, a conventional electric boiler has an electric heater 9 mounted on a lower side of a water tank 7 in which water 5 is contained, and according to the operation of the electric heater 9, a water tank 7. The internal water 5 is heated.

However, in the conventional electric boiler, a lot of time is consumed in order to heat the whole water in the tank to about 60 ° C to 70 ° C, which is a temperature suitable for hot water circulation by the electric heater.

In other words, when the boiler is operated in a state in which the water in the tank is cooled, it takes a certain time until the hot water is heated, and thus there is a problem that a lot of time and power are required before using the hot water.

Accordingly, an object of the present invention is that the influent flowing along the pipeline and the circulating water circulating out of the pipeline can heat each other by an indirect heating method using a counterflow heat exchange to heat and discharge the influent to a predetermined temperature in a very short time. It is to provide an instant hot water electric boiler.

One example of the instantaneous hot water electric boiler according to the present invention for achieving the above object is the first pipe group, the second pipe group and the third pipe group is disposed inside the heat exchanger, A first cap and a second cap are disposed, a heat storage water pipe is disposed on either side of the heat exchanger, a pump and a plurality of heaters are mounted on the heat storage water pipe, and an automatic air vent is mounted on the heat storage water pipe. Before the heat storage water heated by the heater is supplied to the heat exchanger, the air contained in the heat storage water is automatically discharged to the outside, and the first and second temperature sensors are respectively mounted on the heat exchanger and the hot water outlet of the second cap to overheat the heat exchanger. Characterized in that to prevent.

The heat exchanger is provided with a plurality of diaphragms therein, the heat storage heat is heated by the heater zigzag by the diaphragm heat exchange with the low-temperature water flowing through the first pipe group, the second pipe group and the third pipe group heat storage It is characterized by repeating the circulation flowing into the water pipe.

The first cap is divided into a low temperature chamber in which a partition wall is installed to form a cold water inlet and a high temperature chamber through which water that is relatively hotter than water introduced into the low temperature chamber passes through the second pipe group and is located in the low temperature chamber of the first cap. Water is prevented from being mixed with each other, and the second cap is also divided into a high temperature chamber in which a partition is installed to form a low temperature chamber and a hot water outlet, so that the relatively low temperature water discharged from the first pipe group and the relatively high temperature discharged from the third pipe group are provided. It is characterized by preventing phosphorus water from mixing with each other.

One end of the first pipe group is connected to the cold chamber of the first cap, the other end is connected to the cold chamber of the second cap of the second pipe group, and one end of the first pipe group is connected to the high temperature chamber of the first cap, and the other end of the first pipe group is It is connected to the low temperature room of the, the third pipe group is characterized in that one end is connected to the high temperature room of the first cap, the other end is connected to the high temperature room of the second cap.

The heat storage water pipe may include a plurality of mounting parts, and heaters may be respectively mounted on the mounting parts, and the mounting parts may be connected to each other so that the heat storage water forcedly circulated by the pump may flow through the mounting parts.

Another example of the instantaneous hot water electric boiler according to the present invention is that the heat storage water compartment and the water compartment are alternately installed in the heat exchanger alternately, through the cold water supply pipe and the heat storage water outlet of the heat storage pipe and the water flowing into the water compartment of the heat exchanger The heat storage water flowing into the heat storage compartment is characterized by heating the water by heat exchange with each other.

The bypass pipe is connected to the cold water supply pipe, characterized in that the check valve is mounted on the bypass pipe.

Another example of the instantaneous hot water electric boiler according to the present invention is a heater is mounted on the heating tube disposed in the center of the cylindrical heat exchanger, the inner heat storage water passage and the outer heat storage water passage is divided by the partition wall, the inner heat storage water passage The inner water pipe is wound around, and the outer water pipe connected to the inner water pipe is wound on the outer heat storage water passage, the heat storage water circulation pipe is connected to the lower side of the heat exchanger and the heating pipe, and the pump is connected to the heat storage water circulation pipe. It is characterized in that it is mounted on.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a conventional electric boiler

Figure 2 is a schematic diagram showing an instant hot water electric boiler according to a first embodiment of the present invention

3 is a cross-sectional view taken along line A-A showing the instantaneous hot water electric boiler of FIG.

Figure 4 is a schematic diagram showing an instant hot water electric boiler according to a second embodiment of the present invention

Figure 5 is a schematic diagram showing an instant hot water electric boiler according to a third embodiment of the present invention

* Description of Signs of Main Parts of Drawings *

11, 51, 71: instant hot water electric boiler 13, 53, 73: heat exchanger

15, 17, 19: pipe group 21, 31: cap

41, 61: heat storage water pipe 43, 81: heater

47, 49: temperature sensor 54: automatic air vent

P: pump 55: heat storage compartment

57: water compartment 59: cold water supply pipe

77: inner heat storage channel 79: outer heat storage channel

83: bulkhead 85: internal water pipe

87: external water pipe 91: heat storage water circulation pipe

Referring to FIG. 2, the instantaneous hot water electric boiler 11 according to the first embodiment of the present invention includes a first pipe group 15, a second pipe group 17, and a third pipe inside the heat exchanger 13. The group 19 is disposed, the first cap 21 and the second cap 31 are disposed at the front and rear ends of the heat exchanger 13, and the heat storage water pipe (1) on either side of the heat exchanger (13). 41 is disposed, and the pump P and the plurality of heaters 43 are mounted on the heat storage water line 41.

In addition, the instantaneous hot water electric boiler 11 is included in the heat storage water before the heat storage water heated by the heater 43 is equipped with an automatic air vent 54 is installed in the heat storage water pipe 41. Air is automatically discharged to the outside, and the first and second temperature sensors 47 and 49 are mounted on the heat exchanger 13 and the hot water outlet 39 of the second cap 31, respectively, to exchange the heat exchanger 13. To prevent overheating.

The heat exchanger 13 is provided with a plurality of diaphragms 14 therein, while the heat storage water heated by the heater 43 flows zigzag by the diaphragm 14 to the first pipe group 15 and the second pipe group. (17) and the heat exchange with the low-temperature water flowing through the third pipe group 19 is repeated the circulation flowing into the heat storage water pipe (41).

The first cap 21 is a high temperature chamber 27 in which a partition 23 is installed to pass water having a relatively higher temperature than water introduced into the low temperature chamber 25 and a low temperature chamber 25 having a cold water inlet 28 formed therein. The water passing through the second pipe group 17 and the water in the low temperature chamber 25 of the first cap 21 are prevented from being mixed with each other, and the second cap 31 and the partition 33 are installed. Relatively low temperature water discharged from the first pipe group 15 and relatively high temperature discharged from the third pipe group 19 by being divided into a high temperature chamber 37 in which the low temperature chamber 35 and the hot water discharge port 39 are formed. Prevent phosphorus water from mixing with each other.

One end of the first pipe group 15 is connected to the low temperature chamber 25 of the first cap 21, and the other end thereof is connected to the low temperature chamber 35 of the second cap 31 of the first pipe group 15. 17 has one end connected to the high temperature chamber 27 of the first cap 21, the other end connected to the low temperature chamber 35 of the second cap 31, and one end of the third pipe group 19. It is connected to the high temperature chamber 27 of the 1st cap 21, and the other end is connected to the high temperature chamber 37 of the 2nd cap 31. As shown in FIG.

Referring to FIG. 3, the heater 43 is mounted to the heat storage water pipe 41 as follows.

The heat storage water pipe 41 is provided with a plurality of mounting parts 45, the heaters 43 are mounted on the mounting parts 45, respectively, and the heat storage water forcedly circulated by a pump P (see FIG. 2) is mounted on the mounting parts. The mounting portions 45 are connected to each other so as to flow through the 45.

The heater 43 is an external heater, which is called a sheath heater or a cartridge heater, and is sold under the name of "injection heater" by Jool Heater Co., Ltd., Gwangju, Korea. Accordingly, the quantity of water installed in the heat storage water pipe can be changed.

The first temperature preliminary 47 stops the operation of the heater 43 when the temperature of the heat storage water is higher than or equal to the set temperature (95 ° C.), and the second temperature sensor 49 sets the maximum discharge temperature of the discharge hot water. ℃) or more, the operation of the heater 43 is stopped, and when the temperature of the discharged hot water falls below the minimum set temperature (which the user can change arbitrarily), the heater 43 is operated.

Reference numeral 48 denotes a replenishment water pipe, and replenishes the heat storage water with the heat storage water pipe 41.

Referring to FIG. 4, in the instantaneous hot water electric boiler 51 according to the second embodiment of the present invention, the heat storage water compartment 55 and the water compartment 57 are alternately repeatedly installed in the heat exchanger 53, thereby providing a cold water supply pipe. Water 59 flowing into the water compartment 57 of the heat exchanger 53 through the 59 and heat storage water flowing into the heat storage compartment 55 through the heat storage outlet 63 of the heat storage pipe 61 are heat-exchanged with each other. Heat the water.

The bypass pipe 65 is connected to the cold water supply pipe 59, and a check valve 67 is mounted on the bypass pipe 65.

The instantaneous hot water electric boiler according to the second embodiment of the present invention has the same construction and operation as the instantaneous hot water electric boiler of the first embodiment according to the present invention except as described above.

Referring to FIG. 5, in the instantaneous hot water electric boiler 71 according to the third embodiment of the present invention, a heater 81 is mounted on a heating tube 75 disposed at a center of a cylindrical heat exchanger 73, and a partition wall ( 83, the inner heat storage water passage 77 and the outer heat storage water passage 79 are divided, and an inner water pipe 85 is wound around the inner heat storage water passage 77, and the inner water pipe 85 Connected external water pipe (87) is wound in the outer heat storage water passage (79), the heat storage water circulation pipe 91 is connected to the lower side of the heat exchanger (73) and the heating pipe (75), the pump (P) The heat storage water circulation pipe 91 is mounted.

In addition, the air vent, the temperature sensor, the pipe path and the check valve mounted on the instant hot water electric boiler has the same function as the first embodiment or the second embodiment.

The instantaneous hot water electric boiler according to the third embodiment of the present invention configured as described above operates as follows.

The low temperature water flowing into the external water pipe 87 and the heat storage water flowing along the outer heat storage water passage 79 are heat-exchanged, and the first heated water is then heated in the internal water pipe 85. Heat is exchanged with the heat storage water flowing along the inner heat storage water passage 77 and heated to a predetermined temperature. The heat storage water is forcedly circulated by the pump P installed in the heat storage water circulation pipe 91, heated by the heater 81 disposed in the center of the heat exchanger 73, and the inner heat storage water passage ( Passed through the 77 is introduced into the outer heat storage passage 79, the circulation that enters the heat storage circulation passage 91 in the outer heat storage passage (79) is repeated.

As described above, the instantaneous hot water electric boiler according to the present invention heats the inflow water along the water pipe and the circulating water circulating to the outside of the pipe by indirect heating using a counterflow heat exchange, thereby shortening the inflow water to a predetermined temperature. It can be discharged by heating in the inside, and can be made compact as a whole has the effect of reducing the volume ratio occupied by the product.

Claims (2)

The heat storage water compartment 55 and the water compartment 57 are alternately installed in the heat exchanger 53, and the water and the heat storage water flowing into the water compartment 57 of the heat exchanger 53 through the cold water supply pipe 59. Instantaneous hot water electric boiler characterized in that the heat accumulating water flowing into the heat storage water compartment 55 through the heat storage outlet (63) of the pipeline 61 heats the water. The method of claim 1, The cold water supply pipe 59 is connected to the bypass pipe (65), the instantaneous hot water electric boiler, characterized in that the check valve (67) is mounted to the bypass pipe (65).