CN2754015Y - Automatic water supply device for solar water heater - Google Patents

Abstract

The invention discloses an automatic water supply device for a solar water heater, which is composed of a four-way valve body, a water level pipe, a floating body, a guide rod and a sealing cover. A water baffle, a water inlet interface, a water outlet interface, a water tank interface and a water level pipe interface are arranged on the four-way valve body. The water baffle is arranged between the water inlet interface and the water tank interface, and the water tank interface is located above the water baffle. The floating body is arranged in the water level pipe. The guide rod passes through the through hole on the water baffle. The sealing cover is arranged below the water baffle and fixed to the lower end of the guide rod. The sealing cover can cover the through hole on the water baffle. The inner diameter of the water inlet hole of the water inlet interface is 1 to 2 mm. The top of the water level pipe is higher than the overflow pipe on the water tank. The device can ensure that people use the solar water heater as easily as using tap water. There is hot water when the drain valve is opened. After the drain valve is closed, the solar water tank can be automatically filled with water without manual control.

Description

Solar water heater automatic water supply device

Technical field:

The utility model relates to a water supply device for a solar water heater.

Background technique:

The water supply device of existing solar water heater kind is a lot, and the most common is that the water inlet pipe of solar energy shares a pipeline with the discharge pipe, links to each other with running water pipe, shower pipe by three-way pipe joint. When filling water into the solar water tank, the shower pipe should be closed. When the water tank is full, the water will overflow from the overflow pipe on the water tank. At this time, people should close the water supply valve; The hot water in the water heater tank will flow out. After use, the water level in the water tank is not enough, and water must be filled into the water tank. At this time, the shower pipe must be closed first, and then the water supply valve is opened to start the next cycle. Someone must take care of the water supply process, otherwise the water will flow out from the overflow pipe continuously, and the water will be wasted. In order to solve the difficult problem that someone must look after the water, someone has designed a solar automatic water supply valve. When this water supply valve adds water to the solar water tank, as long as the water supply valve is opened, people do not need to take care of it, and when the water tank is full, the water supply valve is automatically closed. This automatic water supply valve market has been sold. Its structure is similar to the structure disclosed in CN2627422Y and CN2526611Y. The overflow port of the solar water tank is equipped with a ball float chamber. It is floated, thereby driving the spool to move upward and closing the valve. This device is not only cumbersome to install owing to needing the bulky floating ball water tank outside, and the floating ball water tank is only welded on the very thin stainless steel inner tank by the mouthpiece, the bearing capacity of this structure is limited, and the service life is not long. Up to the present, a kind of automatic water supply device of solar water heater does not appear, and it can make people use solar water heater just as simple as tap water, just has hot water when opening water release valve, can fill water tank automatically without manual control after closing water release valve.

Invention content:

The purpose of the utility model is to provide an automatic water supply device for a solar water heater.

The solar water heater automatic water supply device described in the utility model is composed of a four-way valve body, a water level pipe, a floating body, a guide rod, and a sealing cover, and a water barrier, a water inlet port, and a water outlet port are arranged on the four-way valve body , the water tank interface and the water level pipe interface, the water baffle is set between the water inlet interface and the water tank interface, the water tank interface is set above the water baffle, the water inlet interface is set under the water baffle, and on the water baffle The through hole; the floating body is set in the water level pipe and fixed on the guide rod. Cover the through hole on the water baffle, the ratio of the inner diameter of the water inlet interface to the inner diameter of the water outlet interface is 1:5~1:30, the top of the water level pipe is higher than the overflow pipe on the water tank; the water level pipe interface is set at the four-way valve The upper end of the body, and the water outlet interface is set under the water baffle.

As an improvement of the utility model, the water inlet interface is arranged on the side of the four-way valve body, and the water outlet interface is arranged at the lower end of the four-way valve body.

As a further improvement of the utility model, the inner diameter of the water inlet at the water inlet interface is 1-2 mm.

Since the water inlet diameter of the water inlet interface is very small, water can be slowly and continuously filled into the water tank. When the water tank is filled, the water level in the water level pipe also rises. At this time, the floating body placed in the water level pipe must Float up, drive the sealing cover to move up, and automatically close the through hole on the water baffle, so as to realize automatic water shut-off; When the water pressure under the water baffle is very low, the sealing cover is automatically pushed downwards under the action of the water pressure in the water tank, and the hot water in the water tank is released. Cold water is released, but it has little effect on the outlet water temperature, and the temperature of hot water released from the water outlet interface can meet people's bathing requirements. This device can ensure that people use the solar water heater as simply as tap water, and there is hot water when the water discharge valve is opened, and the solar water tank can be automatically filled with water without manual control after the water discharge valve is closed.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

In the figure: 1-four-way valve body; 2-water level pipe; 3-floating body; 4-guide rod; 5-sealing cover; interface;

Detailed ways:

The specific embodiment of the utility model is described below in conjunction with accompanying drawing:

The solar water heater automatic water supply device described in the utility model is composed of a four-way valve body 1, a water level pipe 2, a floating body 3, a guide rod 4, and a sealing cover 5. The floating body 3 is fixed on the guide rod 4, and the sealing cover 5 is fixed. Below the guide rod 4, a water inlet port 7, a water outlet port 8, a water tank port 9 and a water level pipe port are provided on the four-way valve body 1, and the water inlet port 7 and the water tank port 9 are all arranged on the four-way valve body 1, and the water tank interface 9 is located above the water inlet interface 7, the water level pipe interface is set at the upper end of the four-way valve body 1, and the water outlet interface 8 is set at the lower end of the four-way valve body 1; the water level pipe interface is sealed with the water level pipe 2 Connection, the water tank interface 9 is connected with the water tank of the solar water heater, the water inlet interface 7 is connected with the indoor tap water pipe, and the water outlet interface 8 is connected with the shower pipe; There are through holes, the water tank interface 9 is located above the water baffle 6, the water inlet 7 and the water outlet 8 are located below the water baffle 6, the floating body 3 is set in the water level pipe 2, and the guide rod 4 is inserted in the water baffle. In the guide hole of the plate 6, the sealing cover 5 is arranged under the water baffle 6. When the sealing cover 5 rises, the sealing cover 5 can cover the through hole on the water baffle 6, and the inner diameter of the water inlet interface 7 is 1 mm. The inner diameter of the water outlet interface 8 is 15 millimeters, and the distance from the water tank interface 9 to the water level pipe 6 top is greater than the diameter of the solar water heater water tank.

Certainly, if the water inlet interface 7 in the above example is arranged on the lower end of the four-way valve body 1, and the water outlet interface 8 is arranged on the side of the four-way valve body 1, the utility model can still achieve the purpose of the invention.

Claims (3)

1. An automatic water supply device for a solar water heater, characterized in that it consists of a four-way valve body (1), a water level pipe (2), a floating body (3), a guide rod (4), and a sealing cover (5). The four-way valve body (1) is provided with a water baffle (6), a water inlet (7), a water outlet (8), a water tank interface (9) and a water level pipe interface, and the water baffle (6) is arranged on the water inlet Between the interface (7) and the water tank interface (9), the water tank interface (9) is located above the water baffle (6), and a through hole is provided on the water baffle (6); the floating body (3) is arranged on the water level pipe (2), and fixed on the guide rod (4), the guide rod (4) passes through the through hole of the water baffle (6), the sealing cover (5) is arranged under the water baffle (6), and fixed At the lower end of the guide rod (4), the sealing cover (5) can cover the through hole on the water baffle (6), and the ratio of the inner diameter of the water inlet hole of the water inlet port (7) to the inner diameter of the water outlet port (8) is 1 : 5～1:30, the top of the water level pipe (2) is higher than the overflow pipe on the water tank; the water level pipe interface is set on the upper end of the four-way valve body (1), and the water outlet interface (8) is provided with the water baffle (6) below. 2. The solar water heater automatic water supply device according to claim 1, characterized in that: the water inlet interface (7) is set on the side of the four-way valve body (1), and the water outlet interface (8) is set on the side of the four-way valve body ( 1) the lower end. 3. The solar water heater automatic water supply device according to claim 1, characterized in that: the inner diameter of the water inlet hole at the water inlet interface (7) is 1-2 cm.