Dual-purpose water heating device capable of heating and heating water

Abstract

The invention discloses a dual-purpose water heating device capable of heating and heating water, comprising a dual-purpose gas water heater capable of heating and heating water. The dual-purpose water heating device capable of heating and heating water is characterized by further comprising an independently circulated heat supply system. The heat supply system comprises a hot water circulating pipeline and a heating device, the interior of the hot water circulating pipeline is full of circulating water, the water feeding end and the water discharging end of the hot water circulating pipelineare respectively communicated with a water feeding end and a water discharging end of the heating device, the hot water circulating pipeline is connected with a temperature detecting head and a heat exchange variable speed pump in series, the heat exchange variable speed pump can regulate the rotation speed according to the detected water temperature of the temperature detecting head, and a heat exchanger is arranged between the hot water circulating pipeline and the gas water heater. The invention is designed to provide a dual-purpose water heating device capable of heating and heating water, which can circularly supply heat on the hot water circulating pipeline by a hot liquid heated by a solar water heater, control the heat exchange between the hot liquid in the hot water circulating pipeline and the gas water heater capable of heating and heating water via the heat exchanger by utilizing the flow speed of the hot water, and optimize the gas usage amount of the gas water heater capable of heating and heating water.

Description

[Technical field] [0001] The invention relates to a dual-purpose hot water device for heating and hot water. [Background technique] [0002] In daily life, how to utilize natural clean energy such as solar energy, geothermal energy, wind energy, water power, etc. has become a problem that people pay more and more attention to. As one of the cleanest, most accessible and convenient energy sources, solar energy has begun to enter thousands of households. [0003] In the prior art, since solar energy, geothermal energy, etc. are greatly affected by natural conditions, the heat supply is very unstable. For example, the heat generated by the solar water heater may exceed the requirements of the user when the sun is full, and the heat generated by the solar water heater on rainy or cloudy days The heat cannot meet the user's requirements. In order to achieve the purpose of constant temperature water output, the user terminal generally uses a solar water heater in combination with...

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Problems solved by technology

[0003] In the prior art, since solar energy and geothermal energy are greatly affected by natural conditions, the heat supply is very unstable. For example, when the sun is sufficient, the heat generated by the solar water heater may exceed the user's requirements, while the heat generated by the solar water heater on rainy or cloudy days The heat cannot meet the user's requirements. In order to achieve the purpose of constant temperature water outlet, the user terminal generally uses the solar water heater and the gas water heater with dual-purpose heating and hot water.

[0004] When in use, the hot water in the solar water heater is directly connected to the user terminal through the pipeline, and then the valve is used to control the on-off of the hot water in the solar water heater and the user terminal. This heating and hot water structure has the following disadvantages: First, the solar water heater Generally placed in a higher position such as the roof or building, the hot water directly coming out of the solar water heater is relatively higher than the water pressure of the user terminal, especially in the city, the floor is high, and the water from the tens of storey building to the user terminal downstairs The pressure has exceeded the bearing capacity of general water valves, so that the existing hot water circulation pipeline must be designed as a high-pressure pipeline, which is costly, easy to leak at the connection, and inconvenient to maintain; Hot water is directly connected to user terminals through pipes. It is difficult for multiple users to share solar water heaters or share a hot water pipe connected to solar water heaters, because if multiple users share solar water heaters or hot water pipes at the same time, the hot water pipes need to be connected to each user. Since the users are on different floors, some users will have high water pressure while others will have low water pressure

If you want to use enough water pressure for users on each floor, you must have thicker water pipes and higher-power solar water heaters. However, the actual situation is that the roof area of ​​the city is limited and the users are concentrated. It is difficult to promote the use of solar water heaters for concentrated residents upstairs

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