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Hot water supply and heating system

a technology for hot water supply and heating system, which is applied in the direction of fluid heaters, heating types, lighting and heating apparatus, etc., can solve the problems of shortening the heating amount of the heat source machine, and the temperature of hot water supplied to the hot water outlet tap may be lower than the desired hot water temperatur

Inactive Publication Date: 2016-02-18
RINNAI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is aimed at providing a hot water supply and heating system that prevents the temperature of hot water from decreasing when simultaneously performing hot water supply and heating operations. This is achieved by reducing the flow rate of hot water through the heating pipes, which in turn decreases the amount of heated water being supplied to the hot water outlet tap. This allows for better temperature control and ensures that the hot water stays at the desired temperature. The user is also alerted when the first desired hot water temperature decreases, providing comfort. Overall, this invention improves the performance and efficiency of the hot water supply and heating system.

Problems solved by technology

Therefore, an increase in the amount of heat consumed by the simultaneous operation may lead to shortage of the heating amount in the heat source machine, and the temperature of the hot water supplied to the hot water outlet tap may become lower than a desired hot water temperature.

Method used

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first embodiment

[0041]Referring to FIG. 1, the hot water supply and heating system 1a of the first embodiment is constructed by connecting a heat source machine 10 and a heating connection unit 40a through the intermediary of a water supply pipe 2 and a hot water supply pipe 3. Waterworks (not illustrated) is connected to the water supply pipe 2, and water is supplied to the water supply pipe 2 from the waterworks when a faucet 5 (corresponding to the hot water outlet tap in the present invention), which is connected to a downstream end of the hot water supply pipe 3, is turned on.

[0042]The heat source machine 10 has the water supply pipe 2 connected to the inlet end thereof and the outlet end thereof connected to the hot water supply pipe 3. The heat source machine 10 includes a heat exchanger 11 connected to the water supply pipe 2 and the hot water supply pipe 3 to heat water flowing from the water supply pipe 2 into the hot water supply pipe 3, a heat source machine flow rate sensor 12 which de...

second embodiment

[0092]Referring now to FIG. 3, a hot water supply and heating system 1b of a second embodiment will be described. The same components as those of the hot water supply and heating system 1a of the first embodiment will be assigned the same reference numerals, and the description thereof will be omitted. The configurations of a heat source machine 10 and a heater 60 of the hot water supply and heating system 1b are the same as those of the hot water supply and heating system 1a of the first embodiment.

[0093]The hot water supply and heating system 1b differs from the hot water supply and heating system 1a of the first embodiment in that the heating connection unit 40b does not have the function to communicate with the heat source machine 10. Further, in order to perform the hot water supply operation without communication with the heat source machine 10, the heating connection unit 40b is provided with a output hot water temperature sensor 43 that detects a temperature Tout of the hot ...

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PUM

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Abstract

A hot water supply and heating system 1a includes a heating flow rate changing valve 44 that changes the flow rate of hot water flowing through a heating pipe 46 and a priority controller 53a that carries out hot water supply priority control whereby to reduce the flow rate of the hot water flowing through the heating pipe 46 by the heating flow rate changing valve 44 in the case where the total of the amount of heat consumed in a heating operation and the amount of heat consumed in a hot water supply operation is equal to or more than a maximum amount of heat that can be applied by the heat source machine 10 during a simultaneous operation of the heating operation and the hot water supply operation.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a hot water supply and heating system that supplies hot water and performs heating by using hot water generated by heating with a heat source machine.[0003]2. Description of the Related Art[0004]Conventionally, there has been proposed a hot water supply and heating system, which uses a heat source machine connected to a water supply pipe and a hot water supply pipe to heat water supplied from the water supply pipe and output hot water to the hot water supply pipe, and which is adapted to perform a heating operation for heating by using the hot water output to the hot water supply pipe from the heat source machine and to perform a hot water supply operation for supplying hot water to a hot water outlet tap connected to a downstream end of the hot water supply pipe (e.g. Japanese Patent Application Laid-Open No. 2008-82633).[0005]The foregoing hot water supply and heating system is provide...

Claims

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Application Information

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IPC IPC(8): F24D19/10F24D3/02F24D3/08
CPCF24D19/1069F24D3/082F24D3/02F24H15/34F24H15/395F24H15/421F24H15/219F24H15/215F24H15/36F24H15/238F24H15/315
Inventor SHIMADA, SHIGEKINIWA, YASUO
Owner RINNAI CORP
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