CN201166487Y - Solar water heater pipe emptying device - Google Patents

Abstract

The utility model belongs to the technical field of solar energy utilization devices and discloses a solar water heater pipeline emptying device. Its main technical features are: it includes a water tank with a water inlet pipe and an overflow pipe, the water inlet pipe is connected with the upper water pipe with the water supply valve, the upper water pipe is connected with the shower head with the bathing valve, and the water inlet pipe is connected with the upper water pipe. The water pipes are connected through the heat-insulation housing with a three-way built in, and the three-way is connected with the water inlet pipe, the upper water pipe and the air inlet pipe with the air inlet valve, and the air inlet pipe is provided with a one-way valve. When the pipe emptying device for the solar water heater is used in cold winter, the upper water pipe will not be damaged by freezing, and the structure is simple and the installation is convenient.

Description

Solar water heater pipe emptying device

technical field

The utility model belongs to the technical field of solar energy utilization devices, in particular to a solar water heater pipeline emptying device.

Background technique

At present, solar water heaters are accepted and used by many families and units due to their excellent performances such as energy saving and environmental protection. The solar water heater comprises a bracket fixed with a water tank and a vacuum pipe. The water tank has a water inlet pipe and an overflow pipe. Because solar water heaters are all installed on leaky planes such as roofs, roofs or balconies, and after solar water heaters are filled with water, there will always be water in the upper water pipe. Like this, when using solar water heater in cold winter, the exposed section of upper water pipe is very easy to be damaged by freezing, thereby influences the use of solar water heater.

Utility model content

The technical problem to be solved by the utility model is to provide a solar water heater pipeline emptying device which is not easy to be damaged by freezing at the connecting section of the upper water pipe and the water inlet pipe.

In order to solve the above-mentioned technical problems, the technical solution adopted by the solar water heater pipeline emptying device of the utility model is as follows: it includes a water tank with a water inlet pipe and an overflow pipe, the water inlet pipe is connected with the water supply pipe with the water supply valve, and the water supply pipe is connected with the water supply pipe with the water supply valve. The shower head with bathing valve is connected, the water inlet pipe is connected with the upper water pipe through the insulation shell with a built-in three-way, the three-way is connected with the water inlet pipe, the upper water pipe and the air inlet pipe with the air inlet valve, the air inlet pipe has There is a one-way valve.

Its additional technical feature is: the height of the tee is higher than that of the overflow pipe.

Compared with the prior art, the solar water heater pipeline emptying device provided by the utility model is provided with a thermal insulation shell with a built-in tee between the water inlet pipe and the upper water pipe. The air intake pipe is connected with the air intake pipe with a one-way valve, and the height of the tee is higher than the height of the overflow pipe. When using a solar water heater in the cold winter, after the water tank is filled with water, close the water supply valve, open the intake valve and the bathing valve, the air enters the water supply pipe through the one-way valve, and the water in the water supply pipe will flow out. And because the height of tee is higher than the height of overflow pipe, the water in the water tank can not flow out, becomes empty in the upper water pipe, thereby can not be damaged by freezing. Then the intake valve and the bathing valve can be opened or closed, and when opened, water will not accumulate in the upper water pipe. When waiting to use, earlier the air intake valve and the bathing valve are closed, and then the water supply valve is opened for a moment, so that tap water enters the water supply pipe and communicates with the water in the water tank. At this moment, due to the effect of the one-way valve, water will not enter the air intake pipe. Then, close the water supply valve again, open the bathing valve, and according to the siphon principle, the water in the water tank flows out from the nozzle through the water supply pipe. The pipeline emptying device of the solar water heater solves the problem of freezing of the upper water pipe by adding an emptying device composed of a tee and an air inlet pipe to the ordinary water tank, and has a simple structure and is easy to install. The emptying device can be manufactured separately or integrally with the tank. The independently manufactured emptying device is suitable for all types of solar water heaters, and after installation, it is only necessary to heat-insulate and seal the water inlet pipe. When the weather is warm, the air intake valve can be closed for a long time to be used as a common solar water heater.

Description of drawings

The accompanying drawing is a structural schematic diagram of the utility model solar water heater pipeline emptying device.

Detailed ways

The structure of the pipeline emptying device for solar water heaters of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in the figure, the solar water heater pipeline emptying device of the utility model includes a water tank 1 with a water inlet pipe 2 and an overflow pipe 3. The upper water pipe 7 of 6 is connected, and the upper water pipe 7 is connected with the shower nozzle 9 that has the bathing valve 8, and the tee 4 is connected with the water inlet pipe 2, the upper water pipe 7 and the air intake pipe 11 with the air intake valve 10, and the air intake pipe 11 has check valve 12, and the height of tee 4 is higher than the height of overflow pipe 3.

When using a solar water heater in the cold winter, after the water tank 1 is filled with water, close the water supply valve 6, open the air intake valve 10 and the bathing valve 8, and the air enters the upper water pipe 7 through the one-way valve 12, and the water in the upper water pipe 7 Water will flow out. And because the height of tee 4 is higher than the height of overflow pipe 3, the water in water tank 1 can not flow out, and becomes empty in upper water pipe 7, thereby can not be damaged by freezing. When waiting to use, first air intake valve 10 and bathing valve 8 are closed, then open water supply valve 6 for a moment, tap water enters water supply pipe 7 and communicates with the water in the water tank 1, this moment, due to the effect of check valve 12, the water Will not enter the intake pipe 11. Then, close the water supply valve 6 again, open the bathing valve 8, and according to the siphon principle, the water in the water tank 1 flows out by the shower nozzle 9 through the water supply pipe 7. When the weather is warm, the long-term closing of the intake valve 10 can be used as a common solar water heater.

Claims (2)

1. The solar water heater pipeline emptying device includes a water tank with a water inlet pipe and an overflow pipe, the water inlet pipe is connected with the water supply pipe with a water supply valve, and the water supply pipe is connected with a shower head with a bathing valve. It is characterized in that: The water inlet pipe is connected with the upper water pipe through the heat-insulating shell with a built-in three-way, and the three-way is connected with the water inlet pipe, the upper water pipe and the air inlet pipe with an air inlet valve, and the air inlet pipe has a one-way valve. 2. The solar water heater pipeline emptying device according to claim 1, wherein the height of the tee is higher than that of the overflow pipe.

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