CN201306876Y - Solar water heater water supply and sewerage pipeline emptying device - Google Patents

Abstract

The utility model discloses an emptying device for the upper and lower water pipes of a solar water heater. and so on. Its main technology is that the emptying pipe, the upper and lower water pipes are respectively connected to the extension pipes of the upper and lower water pipes through a three-way, artificial bending, and at the same time, the three-way separates the upper and lower water pipes into two ways. Installed at the end of the emptying pipe, the tee is connected to the upper and lower water pipes by bending, and connected to the water heater switch at its end. When the water heater is used up when it is cold, open the emptying valve, air enters the mouth of the upper and lower water pipes, and the water heater is cut off Connect to the water in the upper and lower water pipes, turn on the switch of the water heater, drain all the water in the pipe, close the emptying valve for the next bath, and inject water first, so that the water in the upper and lower water pipes can be connected to the water in the water heater insulation tank before use.

Description

Solar water heater upper and lower water pipe emptying device

technical field

The utility model relates to a structure of a solar water heater, more specifically, it is an emptying device for the upper and lower water pipes of the solar water heater.

Background technique

Solar water heaters use solar energy as energy to heat the water in the water storage tank. Therefore, the water storage tanks of solar water heaters are generally installed on the outdoor roof where the sun shines for the longest time, because the surrounding of the outdoor roof In this way, there is a certain distance between the water storage tank of the solar water heater and the water place (indoor), and must be connected to the water place through connecting pieces such as upper and lower water pipes, unions, elbows and tees. Pipes and connectors must be equipped with anti-cold measures in winter in the north, otherwise they will be cracked by freezing. The additional anti-cold measures generally adopt electric heating cables or electric evacuation devices. There are many disadvantages in this additional anti-cold measures First, the installation of electric heating cables is unsafe and prone to fire; the second is the installation of electric emptying devices, which is costly, easy to damage and not durable. So far, a kind of simple in structure, does not need electricity, economical and practical emptying device of the upper and lower water pipes of the solar water heater has not been seen in the solar water heater market.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide an economical and practical emptying device for the upper and lower water pipes of solar water heaters, which has a simple structure and does not require electricity.

The purpose of this utility model is achieved like this: solar water heater upper and lower water pipeline emptying device, it comprises emptying valve, emptying pipeline, tee, upper and lower water pipeline, water heater switch (shower switch), heat preservation water tank, heat preservation water tank liner , upper and lower water pipe extension pipes, check valves and other components.

The emptying pipeline, the upper and lower water pipelines are respectively connected with the extension pipes of the upper and lower water pipelines through a tee and a check valve. The upper and lower water pipes are arranged above one end of the thermal insulation water tank, and the original water inlet and outlet are closed, and the upper and lower water pipes are separated into two paths with the above-mentioned three-way connection, and a water pipe is drawn in the direction perpendicular to the ground of the three-way connection as an emptying pipe. Install the upper and lower water pipe extension pipes at the bottom of the tee in the same direction as the emptying pipe, and the extended pipe goes directly to the bottom of the inner tank. The emptying pipe connected by the tee is slightly higher than the upper and lower water pipes. The emptying pipeline is led to the bathroom, and the emptying valve is installed at the end of the emptying pipeline; the tee is connected to the upper and lower water pipes by manual bending (or adding an elbow) in the horizontal direction of the ground, and the upper and lower water Its end of pipeline is connected with water heater switch (shower switch). When the water heater is used up when it is cold, open the emptying valve and air enters the mouth of the three-way upper and lower water pipes, cut off the water connection between the water heater and the upper and lower water pipes, turn on the switch of the water heater, drain all the water in the pipe, and close the emptying when taking a bath next time valve, first inject water, and fill up the upper and lower water pipes, so that the water in the upper and lower water pipes is connected with the water in the heat preservation water tank of the water heater and can be used.

Compared with the prior art, the emptying device for the upper and lower water pipes of the solar water heater proposed by the utility model has the following beneficial effects: (1) simple structure, low cost, easy to process and manufacture; (2) no electricity, no heat tracing, energy saving Environmental protection; (3) easy to use and reliable performance.

Description of drawings

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

In the figure: emptying valve 1, emptying pipe 2, tee 3, upper and lower water pipes 4, water heater switch (shower switch) 5, heat preservation water tank 6, heat preservation water tank liner 7, upper and lower water pipe extension pipe 8, reverse Stop valve 9.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

In the figure: the emptying pipeline 2, the upper and lower water pipelines 4 are respectively connected with the upper and lower water pipeline extension pipes 8 through the tee 3 and the check valve 9.

When emptying, turn off the water heater switch 5, open the emptying valve 1, and reach the tee 3. Due to the effect of atmospheric pressure and the gravity of the earth, the water in the upper and lower water pipes 4 is disconnected, and the water in the upper and lower water pipes 4 flows out naturally. Because there is no water in the pipeline, the pipeline is not afraid of freezing. When using hot water (as bathing), close the emptying valve 1 and the water heater switch 5, pour water into the upper and lower water pipes 4, use water to exhaust the air in the upper and lower water pipes 4, and then turn on the water heater switch 5 to consume hot water normally. The check valve 9 can prevent water from entering the emptying pipeline 2 due to excessive pressure during water supply.

Claims (3)

1. The emptying device of the upper and lower water pipes of the solar water heater, which includes a tee (3), an upper and lower water pipe (4), a water heater switch (5), an insulated water tank (6), an inner liner of the insulated water tank (7), and an extension of the upper and lower water pipes Pipe (8), check valve (9), it is characterized in that: this emptying device also comprises emptying valve (1), emptying pipeline (2), and described emptying valve (1) is installed in emptying The end of the pipeline (2); the emptying pipeline (2), the upper and lower water pipelines (4) are respectively connected to the upper and lower water pipeline extension pipes (8) through artificial bending of the tee (3) and the check valve (9). 2. The device for emptying the upper and lower water pipes of solar water heaters according to claim 1, characterized in that: the upper and lower water pipes (4) are arranged above one end of the heat preservation water tank (6), and the upper and lower water pipes (4) are connected by the tee (3). The water pipeline is divided into two ways, and a water pipe is drawn in the direction perpendicular to the ground of the tee (3) as the emptying pipeline (2), and the upper and lower water pipes are installed at the bottom of the tee (3) in the same direction as the emptying pipeline (2) to extend Pipeline (8), the bottom of extending pipeline (8) directly to inner container (7). 3. The device for emptying the upper and lower water pipes of solar water heaters according to claim 1, characterized in that: the end of the upper and lower water pipes (4) is connected to the water heater switch (5).

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