CN201327223Y - Water saving device for solar water heater - Google Patents

Abstract

The utility model relates to a water-saving device for a solar water heater, which comprises a water tank, an upper and lower water pipe, a running water pipe, a water supply valve, a hot water pipe, a cold water pipe, a water mixing valve and an air outlet. A water storage tank is installed between the upper and lower water pipes and the shower cold water pipe, and a drain valve is installed at the connection between the water storage tank and the upper and lower water pipes. The bottom of the water storage tank is connected to the cold water pipe through a one-way water valve and a variable diameter tee; the hot water pipe The pipe is higher than the cold water pipe; a three-way solenoid valve is installed in series at the connection between the upper and lower water pipes and the solar water tank. When the water is stopped, the three-way solenoid valve is controlled, and the cold water in the water pipe will be automatically discharged into the water storage tank, so that there is no water in the upper and lower water pipes to avoid freezing and cracking and waste; when showering, hot water and cold water enter the mixing valve together, and the hot water comes from The water heater tank on the roof, the cold water comes from the tap water pipe and the water storage tank to achieve comfortable bathing conditions. The utility model has the advantages of simple structure, convenience and practicality, reasonable process, easy operation and the like.

Description

Solar Water Heater Water Saving Device

technical field

The utility model relates to a shower device, in particular to a water-saving device for a solar water heater.

Background technique

At present, solar water heaters have become an important bathing tool in home life. However, the water tank of the solar water heater is installed on the roof, and there is a large distance between it and the indoor nozzle, and this distance is connected by a water pipe, which cannot increase the temperature, so the water temperature in this section of the water pipe is relatively low. Therefore, when taking a bath at every turn, it is necessary to open the shower head to discharge the cold water in this section of the water pipe earlier, and then the hot water in the solar water heater water tank can flow out, thereby causing a waste of about 3 liters of water when taking a bath each time; in addition, this section of the water pipe As a connecting pipe laid outdoors, it is prone to frost cracking in the cold winter, and in severe cases, the water pipe needs to be replaced, which is very inconvenient. In order to solve the above problems, we provide a new solar water heater that can directly emit hot water.

Contents of the invention

The purpose of the utility model is to provide a solar water heater water-saving device, which is used to solve the problem that ordinary solar water heaters need to let off cold water before showering.

In order to achieve the above object, the utility model solar water heater water-saving device includes a solar water tank, an upper and lower water pipe, a running water pipe, a water supply valve, a shower hot water pipe, a shower cold water pipe, a water mixing valve and an air outlet on the top surface of the solar water tank. One end of the shower hot water pipe communicates with the upper and lower water pipes, and the other end communicates with the mixing valve; one end of the shower cold water pipe communicates with the tap water pipe, and the other end communicates with the mixing valve; A water storage tank is connected between the upper and lower water pipes and the shower cold water pipe, and a drain valve is installed at the connection between the water storage tank and the upper and lower water pipes. The bottom of the water storage tank is connected to the shower cold water pipe through a one-way water valve and a variable diameter tee; The pipe is higher than the shower cold water pipe; a three-way solenoid valve is installed in series at the connection between the upper and lower water pipes and the solar water tank.

After adopting the above structure, when the water is stopped, the three-way solenoid valve is controlled, and the cold water in the water pipe will be automatically discharged into the water storage tank installed indoors, so that there is no water in the upper and lower water pipes, which can avoid freezing cracks and waste; when opened When taking a shower with the mixing valve, hot water and cold water enter the mixing valve together, the hot water comes from the water heater tank on the roof, and the cold water comes from the tap water pipe and the water storage tank to achieve comfortable bathing conditions. The reason why the water in the water storage tank can be lifted up and used is because of the application of the "Bernoulli equation" principle, by combining the "Bernoulli equation" principle with the one-way valve, so that no external force is needed. Can successfully solve return applications where cold water is drained.

Compared with the prior art, the utility model has the advantages of simple structure, convenient and practical, reasonable process, easy operation, saving water resources and avoiding waste.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a water-saving device for a solar water heater of the present invention.

Numbers in the figure: 1 is the solar water tank, 2 is the upper and lower water pipes, 3 is the water pipe, 4 is the water supply valve, 5 is the shower hot water pipe, 6 is the shower cold water pipe, 7 is the water mixing valve, 8 is the air outlet, 9 Be a water storage tank, 10 is a drain valve, 11 is a one-way water valve, 12 is a variable-diameter tee, and 13 three-way solenoid valves.

Detailed ways

As shown in Figure 1, the solar water heater water-saving device of the present utility model comprises a solar water tank 1, an upper and lower water pipe 2, a running water pipe 3, a water supply valve 4, a shower hot water pipe 5, a shower cold water pipe 6, a water mixing valve 7 and opening At the air outlet 8 on the top surface of the solar water tank 1, one end of the shower hot water pipe 5 communicates with the upper and lower water pipes 2, and the other end communicates with the water mixing valve 7; one end of the shower cold water pipe 6 communicates with the tap water pipe 3, and the other end communicates with the water mixing valve 7 Connected; the upper water valve 4 is installed at the connection between the tap water pipe 3 and the upper and lower water pipes 2, and the water storage tank 9 is installed between the upper and lower water pipes 2 and the shower cold water pipe 6, and the drain valve 10 is installed at the connection between the water storage tank 9 and the upper and lower water pipes 2 , the bottom of the water storage tank 9 is connected with the shower cold water pipe 6 through the one-way water valve 11 and the reducing tee 12; the shower hot water pipe 5 is higher than the shower cold water pipe 6; Then install the three-way solenoid valve 13. Among them, the suction lift of the device can reach about 63cm, and the water absorption is 2.0Kg/min. Experiments have proved that it is feasible to use this solution to return the cold water in the water pipe of the solar water heater to the bathing pipeline. In terms of application, the device realizes people's wish of "opening the water valve of the nozzle to have hot water"; in terms of resources, the device also realizes the saving and reuse of water resources.

Claims (1)

1, a kind of automatic regulating device for solar water heater, comprise solar water container (1), upper and lower conduit (2), running water pipe (3), water supply valve (4), shower hot-water line (5), shower cold water pipe (6), mixed water valve (7) and the gas outlet (8) that is opened in solar water container (1) end face, shower hot-water line (5) one ends communicate with upper and lower conduit (2), and the other end communicates with mixed water valve (7); Shower cold water pipe (6) one ends communicate with running water pipe (3), and the other end communicates with mixed water valve (7); Water supply valve (4) is installed in running water pipe (3) and upper and lower conduit (2) junction, it is characterized in that: between upper and lower conduit (2) and shower cold water pipe (6), be connected and installed storage tank (9), with upper and lower conduit (2) place of connection drain valve (40) is installed at storage tank (9), storage tank (9) bottom is connected with shower cold water pipe (6) with reducing tee (12) by water check valve (11); Shower hot-water line (5) pipeline is higher than shower cold water pipe (6) pipeline; Be connected in series installation three-way magnetic valve (13) with solar water container (1) junction at upper and lower conduit (2).

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