Tandem type solar hot water device

Abstract

The invention relates to a tandem type solar hot water device. A plurality of vacuum heat-absorbing tubes are connected in series through a connecting pipeline to form a water circulation loop, a plurality of water tanks are connected to the connecting pipeline of the water circulation loop in parallel, and circulating water pumps used for forcing water in the pipeline to circulate are connected to the connecting pipeline between the water tanks and the vacuum heat-absorbing tubes; each water tank is provided with a water inlet pipe and a water outlet pipe, magnetic valves are connected between each water inlet pipe and the connecting pipeline and between each water outlet pipe and the connecting pipeline respectively, and a magnetic valve is connected to the portion, between the two magnetic valves, of the connecting pipeline. According to the tandem type solar hot water device, the connecting mode of the vacuum heat-absorbing tubes is changed based on a common household solar water heater, the tandem type structure is adopted, and the water tanks and the vacuum heat-absorbing tubes are designed into standard individual parts, so users can match the vacuum heat-absorbing tubes and the water tanks according to water consumption of the users and local weather conditions each year. Therefore, water can be heated to the sufficient temperature even on a cloudy day so as to reduce extra power consumption due to switching of electric heating.

Description

technical field [0001] The invention relates to a solar water heating device, in particular to a vacuum tube heat collecting type solar water heating device. Background technique [0002] Most of the current domestic solar water heaters for civil use are vacuum tube heat collectors, which have the advantages of good heat collection effect, simple structure and durability. At the same time, there are also the following disadvantages: 1. The heating time is long. Generally, water is added in the morning, and the water can only reach the expected temperature in the afternoon; 2. Under low light conditions, such as rainy days and foggy days, the effect cannot be exerted; 3. There is an automatic Once the water volume of the water adding function is reduced, the machine will automatically add water to make the water temperature drop and affect the use effect, but it is inconvenient to manually control the water addition. According to statistics, many places in our country are un...

AI Technical Summary

Problems solved by technology

At the same time, there are also the following disadvantages: 1. The heating time is long. Generally, water is added in the morning, and the water can only reach the expected temperature in the afternoon; 2. Under low light conditions, such as rainy days and foggy days, the effect cannot be exerted; 3. There is an automatic Once the water volume decreases, the machine will automatically add water to make the water temperature drop and affect the use effect, but it is inconvenient to manually control the water addition

According to statistics, many places in our country are under weak light conditions all year round, which greatly limits the popularization and utilization of solar energy.

[0003] The current conventional solution is to use electric auxiliary heating, whose efficiency is much lower than that of air source water heaters of the same power, resulting in a great waste of electric energy

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