CN201787742U - A High Energy Efficiency Bundled Vacuum Tube Solar Water Heater - Google Patents

Abstract

The utility model relates to a solar water heater of a high-energy-efficiency bundled vacuum tube, comprising an insulating water tank and a solar heat collector, wherein the solar heat collector comprises the vacuum tube and a header; the vacuum tube is horizontally arranged and inserted into the header; the bottom of the header is provided with a water inlet and outlet pipe; the header and the insulating water tank are communicated by a high-temperature convection guide pipe and a low-temperature convection guide pipe; a lower port of the high-temperature convection guide pipe is arranged at the top of the header; an upper port of the high-temperature convection guide pipe is arranged at the bottom of the insulating water tank; and a lower port of the low-temperature convection guide pipe is arranged at the lower part in the header. As the header and the insulating water tank are communicated by the high-temperature convection guide pipe and the low-temperature convection guide pipe, the heat efficiency of the water heater can be improved, simultaneously, as the opened holes of the insulating water tank are greatly reduced, and the heat loss is reduced. The vacuum tube is horizontally arranged, and water in the tube can be discharged completely for use, therefore, the usable hot water is increased by 30 percent compared with the common water heater.

Description

A High Energy Efficiency Bundled Vacuum Tube Solar Water Heater

technical field

The utility model relates to a solar heat utilization technology, in particular to a high-energy-efficiency bundled vacuum tube solar water heater.

Background technique

Most of the vacuum tube solar water heaters in the prior art are integral structures in which the vacuum heat collecting tubes are directly inserted into the interior of the heat preservation water tank. It has two major defects that cannot meet the new national standard first-class energy efficiency technical requirements. First, each vacuum tube is opened upwards. , the hot water in the vacuum tube cannot be released for people to use. Taking a water heater with φ58×1800 and twenty vacuum tubes as an example, more than 30% of the heat energy is wasted every day; 2. All the vacuum tubes are inserted into the inner cylinder of the heat preservation water tank , There are too many holes in the water tank, and there will be more heat loss, and its thermal insulation capacity cannot reach the first-level energy efficiency technical index of the new national standard.

Contents of the invention

The technical problem to be solved by the utility model is to provide a reasonably designed high-energy-efficiency bundled vacuum tube solar water heater aiming at the deficiencies of the prior art.

The technical problem to be solved by the utility model is achieved through the following technical proposals. A high-energy-efficiency bundled vacuum tube solar water heater includes an insulated water tank and a solar heat collector. The solar heat collector includes a vacuum tube and a header, Its characteristics are: the vacuum tube is horizontally arranged and inserted into the header, the bottom of the header is provided with water inlet and outlet pipes, the header and the heat preservation water tank are connected through a high-temperature convection conduit and a low-temperature convection conduit, and the lower port of the high-temperature convection conduit is located at the bottom of the header At the top, the upper port of the low-temperature convection conduit is arranged at the bottom of the heat preservation water tank, and the lower port of the low-temperature convection conduit is arranged at the lower part of the header.

The technical problem to be solved by the utility model is realized by the following technical scheme, the upper port of the high-temperature convection conduit in the heat preservation water tank is set higher than the upper port of the low-temperature convection conduit.

The utility model can improve the thermal efficiency of the water heater because the thermal insulation water tank and the header are connected through the high-temperature convection conduit and the low-temperature convection conduit, and at the same time, the thermal loss coefficient is reduced because the openings of the thermal insulation water tank are greatly reduced. The horizontal and horizontal arrangement of the vacuum tube can make all the water energy in the tube released for use, so that the useful hot water is 30% higher than that of ordinary water heaters, and the effective heat gain per unit area per day is also 30% higher than that of ordinary vertically inserted vacuum tube solar water heaters.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Detailed ways

A high-energy-efficiency bundled vacuum tube solar water heater includes an insulated water tank 2 and a solar heat collector. The solar heat collector includes a vacuum tube 1 and a header 5, and the vacuum tube 1 is horizontally arranged and inserted into the header 5. The bottom of the header 5 is provided with an inlet and outlet pipe 6, and the header 5 communicates with the heat preservation water tank 2 through a high-temperature convection conduit 3 and a low-temperature convection conduit 4. The lower port of the high-temperature convection conduit 3 is located on the top of the header 5, and the low-temperature convection conduit The upper port of 4 is located at the bottom of the thermal water tank 2, and the lower port of the low-temperature convection conduit 4 is located at the bottom of the header 5. The upper port of the high-temperature convection conduit 3 in the thermal insulation water tank 2 is set higher than the upper port of the low-temperature convection conduit 4 .

The high-temperature convection conduit 3 and the low-temperature convection conduit 4 on the header 5 can be directly inserted into the thermal insulation water tank 2, or communicate with the thermal insulation water tank 2 through flexible pipes. The relative opening positions of the high-temperature convection conduit 3 and the low-temperature convection conduit 4 in the thermal insulation water tank 2 can be far or close, so as to achieve the best convection effect.

During implementation, turn on the tap to fill the entire system, including the heat preservation water tank 2, header 5 and all vacuum tubes 1, with water. When sunlight shines on the vacuum tube 1, the cold water in the tube is gradually heated, and the hot water is continuously convected to the header In 5, the temperature of the water in the header 5 will continue to rise, and its density will become smaller and the buoyancy will increase accordingly. The hot water enters the heat preservation water tank 2 through the high-temperature convection conduit 3 on the top of the header 5, and the temperature below the heat preservation water tank 2 is relatively low. The cold water with relatively high density will automatically flow down into the header 5 through the low-temperature convection conduit 4, and then enter the vacuum tube 1 to be heated again. In this way, after the infinite continuous hot water convection cycle throughout the day, the water temperature in the entire system will be maintained. will rise to a certain temperature.

When using water, the thermal water tank 2 can be released for people to use together with the hot water in the vacuum tube 1. In this way, under the same conditions, the device can produce 30% more hot water per day than the solar water heater with the same number of tubes, and the effective heat gain per unit area of the whole machine can reach 9.5-11MJ/m ² . Since the openings of the thermal insulation water tank 2 are greatly reduced, its thermal insulation capacity is greatly improved, and its heat loss factor can be reduced to 9-11W/(m ³ .K). The core thermal performance index is much better than the national first-class energy efficiency standard. Water is released every day simultaneously, and the water in the vacuum tube 1 can all flow out, and foreign matter impurity just can not be kept in the tube like this, makes water quality cleaner.

Claims (2)

1. A high-energy-efficiency bundled vacuum tube solar water heater includes an insulated water tank and a solar heat collector, and the solar heat collector includes a vacuum tube and a header, and is characterized in that: the vacuum tube is horizontally and horizontally inserted into the header, and the described The bottom of the header is provided with water inlet and outlet pipes, and the header and the heat preservation water tank are connected through a high-temperature convection conduit and a low-temperature convection conduit. The lower port of the conduit is located at the lower part of the header. 2. The high-energy-efficiency bundled vacuum tube solar water heater according to claim 1, characterized in that: the upper port of the high-temperature convection conduit in the insulated water tank is set higher than the upper port of the low-temperature convection conduit.

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