CN202675709U - Emptying anti-freezing pipeline system for solar water heater - Google Patents

Abstract

The utility model discloses an emptying anti-freezing pipeline system for a solar water heater. The emptying anti-freezing pipeline system comprises a water storage tank, a water pipe connected with the water storage tank, and a shower nozzle and/or a faucet connected with the water pipe, wherein a siphon elbow pipe used for leading out hot water is arranged inside the water storage tank; the lead-out end of the siphon elbow pipe is connected with the water pipe; the water pipe is connected with a container through a mounted water outlet valve and is connected with the shower nozzle and/or the faucet through the container; and a water inlet valve is arranged on the container. By adoption of the siphon elbow pipe, the stored water in the water outlet pipeline of the exposed part of the siphon elbow pipe is emptied, thus the problem that the pipeline is easily frozen or frozen off when the air temperature in the north in winter is low is completely solved, the service life of a water heater is greatly prolonged; and the anti-freezing system has the characteristics that design and structure are simple and use and operation are convenient.

Description

Solar Water Heater Empty Antifreeze Piping System

technical field

The utility model belongs to a solar water heater, in particular to a solar water heater emptying and antifreezing pipeline system, which effectively solves the problem that the outlet pipeline of the solar water heater is easily damaged by freezing in winter in the north.

Background technique

Solar products have many unique advantages and properties, and have entered people's daily life. For example, solar water heaters are the most widely used, because they have energy saving, no pollution, long service life, etc., which bring great convenience to people's work and life. However, in practical application, some problems may occur. On the one hand, the hot and cold water inlet and outlet pipes are installed at the lower part of the water heater tank, which will lead to leakage at the connection; on the other hand, due to the low temperature in winter in the north, it is very easy to freeze the hot and cold water inlet and outlet pipes Not only is it unusable, but it needs to be replaced and repaired. The key of causing the above reasons is: a large amount of water is stored in the hot and cold inlet and outlet pipes. If there is no water in the hot and cold inlet and outlet pipes, freezing phenomenon will not take place. In order to solve this problem, the disclosed solar water heater with antifreeze function includes a water storage tank, an inlet and outlet pipe, and an exhaust port and an overflow port installed thereon; Two interchangeable overflow ports or exhaust ports; and an exhaust port and a water inlet and outlet are vertically arranged on the upper part of the water storage tank, and a siphon is inserted into the water storage tank through the water inlet and outlet; the outlet end of the siphon is passed through A three-way pipe connection is installed to connect a water inlet and outlet pipe and an air inlet pipe respectively; Therefore, after normal use in winter, open the intake valve to connect the incoming air through the intake pipe and the three-way pipe, and one way of air enters the water storage tank through the siphon to prevent the hot water from being discharged; The water inlet and outlet valves are discharged, or the water inlet and outlet valves are closed when they are kept about 1 meter above the water inlet and outlet valves. Like this, the pipeline that is positioned at the siphon pipe of water storage tank to the water inlet and outlet valve of water inlet and outlet pipe more than 1 meter has been emptied, thereby effectively avoided the freezing or frost damage of water inlet and outlet pipe, has protected the normal use of solar water heater. However, although the above-mentioned technology solves the problem that the water pipe is easy to freeze, it is troublesome to operate and use because the design of the pipeline system is relatively complicated.

Contents of the invention

In view of the above situation, the purpose of this utility model is to provide a solar water heater evacuation antifreeze pipeline system, which can avoid freezing and maintain normal use in winter by evacuating the water in the hot water outlet pipe.

In order to achieve the above purpose, the technical solution of this utility model is: a solar water heater emptying antifreeze pipeline system, including a water storage tank, a water pipe connected to the water storage tank, and a shower head and/or a faucet connected to the water pipe Wherein, a siphon elbow pipe for drawing hot water is set inside the water storage tank, the outlet end of the siphon elbow pipe is connected to the water pipe, the water pipe is connected to the container by installing the water outlet valve, and the shower canopy is passed through the container head and/or tap connection, an air inlet valve is installed on said container.

When using in winter, open the water outlet valve and faucet to use normally; when antifreezing and emptying, close the water outlet valve, open the inlet valve and faucet to let the air enter the container; then close the inlet valve and faucet, open the outlet valve to let the air pass through The outlet pipe is sent to the highest point of the siphon elbow, and the pressure formed by the intervention of air effectively prevents the hot water from the water storage tank from continuing to discharge, so that the outlet pipe system is in an empty state, thereby effectively avoiding the freezing of the outlet pipe Or freezing, protecting the normal use of the solar water heater in winter.

According to the above-mentioned characteristics, there is a gap between the water inlet pipe mouth of the siphon elbow pipe and the bottom of the water storage tank. It can ensure the use at low water level and a certain water pressure, so that the air inhaled by the container forms an air cut-off valve at the siphon elbow pipe, which controls the water storage tank to continue to discharge hot water, so that the water outlet pipeline system is in an empty state. Freezing is avoided.

In the present model, the involved container has a cylindrical cavity, and the two ends of the cylindrical cavity are a frustum-shaped water inlet and outlet.

The above-mentioned container can be made of metal or plastic material.

Further, the siphon elbow pipe is installed at the bottom of the water storage tank, or at any side end of the water storage tank, and the water inlet of the siphon elbow pipe should correspond to the bottom of the water storage tank. Mainly choose according to the installation space.

To sum up, the solar water heater evacuation and antifreeze pipeline system provided by the utility model has dual functions of water outlet and air introduction because the outlet pipeline system adopted, and the siphon principle is used to remove the existing part of the exposed part of the water outlet pipeline. The water is emptied, which completely solves the problem of the low temperature in winter in the north, which is easy to freeze or damage the pipeline. It is easy to use and operate, and greatly prolongs the service life of the water heater.

Description of drawings

Fig. 1 is the schematic diagram of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

The antifreeze piping system of the solar water heater shown in Fig. 1 includes a water storage tank 1, a siphon elbow pipe 2 is installed at the bottom of the water storage tank 1, and the siphon elbow pipe 2 located inside the water storage tank 1 There is a gap between the water inlet pipe mouth and the bottom of the water storage tank 1 to ensure that the use at a low water level has a certain water pressure. The lead-out end of the siphon elbow pipe 2 is connected to one end of the water pipe 3, and the other end of the water pipe 3 is connected to one end of the container 6 by installing the outlet valve 4, and the other end of the container 6 is connected to the shower tent by connecting a three-way pipe (not marked in the figure). Head 8 is connected with faucet 7. An inlet valve 5 is installed on the container 6 .

In this embodiment, the involved container 6 has a cylindrical cavity, and the two ends of the cylindrical cavity are a frustum-shaped inlet and outlet. In addition, the container 6 can also be a spherical body, which also has inlets and outlets for connection.

In the above embodiment, the siphon elbow pipe 2 provided is installed at the bottom of the water storage tank 1 . Equally according to the space condition of installation, siphon elbow pipe 2 can be selected to be installed on any side end of water storage tank 1, and the water inlet pipe mouth of its siphon elbow pipe 2 should be corresponding with water storage tank 1 bottom.

The shower head 8 in this embodiment, in addition to being installed on the outlet end of the container 6 , can also be connected to the water pipe 3 on the top of the water outlet valve 4 .

Application principle of solar water heater emptying antifreeze pipeline system:

The state of use in winter: the air intake valve 5 and the water tap 7 are kept closed while the water outlet valve 4 is in an open state when the water outlet pipeline is empty. When using the water tap, you only need to open the water tap 7 for normal use, and you can also turn off the water tap 7 to use the shower head 8.

Antifreeze emptying state: close the outlet valve 4, open the intake valve 5 and the faucet 7 to allow air to enter the container 6, drain the water in the pipeline leading out of the siphon elbow pipe 2, and then close the intake valve 5 and the faucet 7. Open the water outlet valve 4, let the air in the container 6 enter the water outlet pipe 3 to the highest point of the siphon elbow pipe 2, control the water storage tank 1 not to drain, and make the entire water outlet pipeline system in an empty state.

Claims (4)

1. solar water heater evacuation and anti-freezing pipe-line system comprises water storage box, and the water pipe that is connected with water storage box, with the shower head for shower bath that is connected with water pipe and/or tap; It is characterized in that, a siphon swan neck (2) that is used for drawing hot water is set in described water storage box (1) inside, the exit of this siphon swan neck (2) is connected with water pipe (3), this water pipe (3) is connected with container (6) by outlet valve (4) is installed, be connected with shower head for shower bath (8) and/or tap (7) by container (6), be installed into air valve (5) at described container (6).

2. by solar water heater evacuation and anti-freezing pipe-line system claimed in claim 1, it is characterized in that wherein the gap is left in the water inlet pipe mouth of siphon swan neck (2) and water storage box (1) bottom.

3. by solar water heater evacuation and anti-freezing pipe-line system claimed in claim 1, it is characterized in that wherein container (6) has a cylindricality cavity, the two ends of this cylindricality cavity are the entery and delivery ports of a taper type.

4. by solar water heater evacuation and anti-freezing pipe-line system claimed in claim 1, it is characterized in that, described siphon swan neck (2) is installed in the bottom of water storage box (1), or being installed in any side of water storage box, the water inlet pipe mouth of described siphon swan neck (2) should be corresponding with water storage box (1) bottom.

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