JPH0320239U

JPH0320239U -

Info

Publication number: JPH0320239U
Application number: JP8010089U
Authority: JP
Priority date: 1989-07-10
Filing date: 1989-07-10
Publication date: 1991-02-27
Anticipated expiration: 2004-07-10
Also published as: JPH083877Y2

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案の一実施例を示し、
第１図は従来例との相異を説明するための水系統
図、第２図は高温さし湯状態を描いた水系統図、
第３図は過渡状態を描いた水系統図、第４図は給
湯状態を描いた水系統図である。第５図乃至第８
図は従来例の給湯器を示し、第５図は基本配管を
描いた水系統図、第６図は高温さし湯状態を描い
た水系統図、第７図は給湯状態を描いた水系統図
、第８図は過渡状態を描いた水系統図である。１……給水管、２……給湯管、３……熱交換器
、４……三方弁、５……電磁弁、６……電磁弁
、７……逆止弁、８……浴槽配管、９……電磁
弁、１０……電磁弁、１１……逆止弁、１２
……流量制御弁。 1 to 4 show an embodiment of the present invention,
Figure 1 is a water system diagram to explain the differences from the conventional example, Figure 2 is a water system diagram depicting a high temperature pouring state,
FIG. 3 is a water system diagram depicting a transient state, and FIG. 4 is a water system diagram depicting a hot water supply state. Figures 5 to 8
The figure shows a conventional water heater, Figure 5 is a water system diagram depicting the basic piping, Figure 6 is a water system diagram depicting hot water supply state, and Figure 7 is a water system diagram depicting hot water supply state. Figure 8 is a water system diagram depicting a transient state. 1... Water supply pipe, 2... Hot water pipe, 3... Heat exchanger, 4... Three-way valve, 5... Solenoid valve, 6... Solenoid valve, 7... Check valve, 8... Bathtub piping, 9... Solenoid valve, 10... Solenoid valve, 11... Check valve, 12
...Flow control valve.

Claims

[Claim for Utility Model Registration] A heating circuit in which a heat exchanger and a control valve are connected in series is provided between a water supply pipe and a hot water supply pipe, and a first solenoid valve is provided in parallel with the heating circuit. A bypass circuit is provided, and bathtub piping included in a second electromagnetic valve is provided, which branches from the downstream side of the heat exchanger of the heating circuit and guides hot water that has passed through the heat exchanger to the bathtub; The first and second electromagnetic valves and the control valve are operated by the automatic control device, and the hot water heated by the heat exchanger is sent to the bath tub piping, and the hot water is heated by the heat exchanger. a hot water supply state in which hot water is sent to the hot water pipe; and in the process of transitioning from the high-temperature hot water state to the hot water supply state, the hot water heated by the heat exchanger and the water flowing through the bypass circuit are mixed. In a water heater that can be switched between three types of states, including a transient state in which hot water is sent to the water supply pipes, the control valve connected to the heating circuit is located downstream of the heat exchanger, and the control valve is located downstream of the heat exchanger to reduce the water flow rate to zero. The flow control valve is a flow control valve that controls the flow rate without being closed, and the bathtub piping is branched from the downstream side of the flow control valve provided in the heating circuit, and the flow control valve is connected to the flow control valve and the second solenoid valve. a circuit having a third solenoid valve connected in parallel between the heat exchanger and the bath tub piping and closed in a hot hot water supply state, opened in a transient state, and closed in a hot water supply state; and a fourth electromagnetic valve connected in parallel to the flow rate control valve between the heat exchanger and the hot water pipe and closed in a hot hot water state and opened in a transient state; A water heater having a high-temperature hot water function, characterized by comprising a circuit having a solenoid valve and a check valve connected in series.