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KR-20260065379-A - Hot water supply system of electric boiler

KR20260065379AKR 20260065379 AKR20260065379 AKR 20260065379AKR-20260065379-A

Abstract

The present invention relates to a hot water supply system for an electric boiler that is improved to supply hot water using heating water from an electric boiler. In the present invention, heating water heated in a heating unit (10) is supplied to a heating supply pipe (12) and a heating pipe (13), heating return water is returned to the heating unit (10) through a heating return pipe (14), a return direction switching means (40), and a heating return pipe (14'), and cold water flows into a hot water supply means (20) which has a plurality of alternating heating water circulation holes (26) and hot/cold water circulation holes (26') between a plurality of heat exchange plate members (21, 21'), and a water flow detection signal is applied to a control unit (50) by a water flow detection sensor (30) provided in a cold water supply pipe (15), and the control unit (50) controls the electronic solenoid ad (41) of the return direction switching means (40) so that the switching hole (43) of the ball (42) The heat exchange water return pipe (14') connected to the hot water supply means (20) is connected to the heating return pipe (14") so that the water is returned to the heating unit (10), and the cold water flowing into the cold and hot water circulation hole (26') of the hot water supply means (20) is configured such that the thermal energy of the heating water passing through the heating water circulation hole (26) is transferred to the cold water passing through the cold and hot water circulation hole (26') through the heat exchange plate member (21, 21') to become hot water and is supplied to the hot water supply pipe (15').

Inventors

  • 나영수

Assignees

  • 나영수

Dates

Publication Date
20260508
Application Date
20241101

Claims (3)

  1. Heating water heated in the heating unit (10) is supplied to the heating supply pipe (12) and the heating pipe (13), and the heating return water is returned to the heating unit (10) through the heating return pipe (14), the return direction changing means (40), and the heating return pipe (14). Cold water flows into the hot and cold water circulation holes (26') of the hot water supply means (20), which has a plurality of alternating heating water circulation holes (26) and hot and cold water circulation holes (26') between a plurality of heat exchange plate members (21, 21'), and a water flow detection signal is applied to the control unit (50) by the water flow detection sensor (30) provided in the cold water supply pipe (15), and the control unit (50) controls the electronic solenoid (41) of the return direction switching means (40) so that the switching hole (43) of the ball (42) is connected from the heat exchange water return pipe (14') connected to the hot water supply means (20) to the heating return pipe (14"), thereby allowing the water to be returned to the heating unit (10); A hot water supply system for an electric boiler, characterized in that cold water flowing into the hot and cold water circulation hole (26') of the hot water supply means (20) is configured such that the thermal energy of the heating water passing through the heating water circulation hole (26) is transferred to the cold water passing through the hot and cold water circulation hole (26') through the heat exchange plate member (21, 21') to become hot water and is supplied to the hot water supply pipe (15').
  2. In Article 1, The above hot water supply means (20) is configured such that it is equipped with a contact surface portion (24) that is in close contact with each other around a plurality of heat exchange plate members (21, 21'), a heating water passage hole (23) and a heating return water passage hole (23') respectively provided at the upper and lower portions of each heat exchange plate member (21, 21'), and a heating water passage hole (26) and a heating water flow hole (26') respectively provided at the upper and lower portions of each contact surface portion (24), and is configured such that a plurality of heating water flow holes (26) and hot water flow holes (26') are alternately provided.
  3. In either Article 1 or Article 2, A hot water supply system for an electric boiler, characterized in that a screen mesh (29) that transfers heat by contacting a heat exchange plate member (21, 21') is further embedded within the heating water flow hole (26).

Description

Hot water supply system of electric boiler The present invention relates to an electric boiler, and more specifically, to a hot water supply system of an electric boiler improved to supply hot water using heating water from an electric boiler. Generally, hot water is supplied using an electric instantaneous water heater as described in the patent documents of the prior art, but since this is designed to obtain hot water primarily by using heater heat, it takes a long time to heat the cold water. Therefore, there is a disadvantage in that after all the hot water in the instantaneous water heater is used, one must wait for a while for it to be heated again before hot water can be supplied, which entails the problem of not being able to use hot water continuously. Furthermore, in the case of electric boilers, using heating water as hot water entails the problem of not being able to supply clean hot water. FIG. 1 is an overall schematic diagram of a hot water supply system of an electric boiler according to the present invention. FIG. 2 is a side view of a hot water supply means according to the present invention, FIG. 3 is a partially separated perspective view of a hot water supply means according to the present invention, FIG. 4 is a schematic diagram illustrating the operation of the hot water supply means of the present invention. FIG. 5 is a side view of a water return direction switching means implemented according to the present invention. Figures 6 (a) and (b) are plan views for explaining the water return direction changing means of the present invention. The present invention will be described in more detail below based on the attached preferred embodiments. Referring to FIG. 1, the present invention comprises a heating water heating unit (10) that heats cold water or heating return water by a pump (11) to obtain heating water. It is preferable that the heating unit (10) above be a heating unit (10) such as Korean Registered Patent No. 10-2719598, which was developed by the applicant and previously registered and published, to obtain heating water. Since the heating unit (10) of the previously registered patent has already been published, detailed drawings and descriptions are omitted. The heating water heated in the heating unit (10) is supplied to a plurality of heating pipes (13) through the heating supply pipe (12) to provide heating, and the heating return water that has passed through the heating pipes (13) is returned to the heating unit (10) through the heating return pipe (14), reheated, and supplied back to the heating pipes (13). Accordingly, the present invention is provided with a hot water supply means (20) through which heating water is supplied via a heating supply pipe (12'). As shown in FIGS. 2 and 3, the hot water supply means (20) is provided with a plurality of heat exchange plate members (21, 21'), and each of the heat exchange plate members (21, 21') is provided with a cold water passage hole (22) and a hot water passage hole (22') on the upper side, and on the opposite side from the cold and hot water passage holes (22, 22'), a heating water passage hole (23) and a heating return water passage hole (23') are provided, respectively, and a contact surface portion (24) is provided around the cold and hot water passage holes (22, 22') and the heating water and heating return water passage holes (23, 23'), respectively, and a communication groove (25) is formed in the contact surface portion (24) of one heat exchange plate member (21), and a communication groove (25) is also formed in the contact surface portion (24) of another heat exchange plate member (21') adjacent to the one heat exchange plate member (21). By configuring it to be formed, it is configured to be connected to the heating water circulation hole (26) and the hot and cold water circulation hole (26'), respectively. Accordingly, after the above-mentioned heat exchange plate member (21) and another heat exchange plate member (21') are brought into close contact on both sides, a plurality of heat exchange plate members (21, 21') are fixed by a pair of two-sided fixed frames (22") and a fixing member (not shown) so that they are alternately brought into close contact by strong pressure, and as a result, as shown in FIG. 4, heating water circulation holes (26) and hot and cold water circulation holes (26') are alternately provided between the plurality of heat exchange plate members (21, 21'). Therefore, when heating water is introduced through the heating supply pipe (12') and the heating water inlet (27), the heating water is introduced through the heating water passage (23) into each heating water circulation passage (26), and then is returned to the return direction switching means (40) which is directly connected to the heat exchange water return pipe (14') through the heating return passage (23') and the heating water outlet (27'). Then, cold water is supplied through the cold water supply pipe (15) and cold water