CN201166483Y - Water-saving, energy-saving, explosion-proof pipe control device for solar water heater - Google Patents

Abstract

A water-saving, energy-saving, explosion-proof pipe control device for a solar water heater, characterized in that: a solenoid valve (6) is installed at the outlet of the solar water heater water tank (1), and a three-way pipe joint (8) is installed at the outlet of the solenoid valve. One end of the three-way pipe joint is upwards and is connected with an exhaust pipe (5), and the other end of the three-way pipe joint is connected with a hot water pipe (3). When you want to use hot water, you can close the solenoid valve switch in the shower room, the solenoid valve is powered on, the hot water flows into the hot water pipe through the solenoid valve and then to the shower head, all the water in the hot water pipe will be used, stop using it When you only need to disconnect the solenoid valve switch, there will be no water after the remaining water in the hot water pipe is emptied. Compared with the current solar water heater pipeline control, the device can save water and energy for the solar water heater and prevent its pipes from The effect of road bursting is beneficial to the promotion of solar water heaters, and has the advantages of simple structure and easy operation.

Description

Water-saving, energy-saving, explosion-proof pipe control device for solar water heater

technical field

The utility model relates to a solar water heater, in particular to a water-saving, energy-saving and explosion-proof pipeline control device for a solar water heater.

Background technique

At present, there are three problems in the pipeline control of solar water heaters (as shown in Figure 1): first, when starting to use the solar water heater, the general manual ball valve 2 is normally open, and the hot water valve 4 is opened. There is a pipe of cold water (the hot water will turn into cold water after a long time). Before the hot water is released, the cold water in this pipe must be released to produce hot water, so the water resource of one pipe (average two liters of water) is wasted; Second, after using up the water of the solar water heater once, close the hot water valve, a pipe of hot water will remain in the hot water pipe, and it will become cold water after a long time, so that a pipe of hot water is wasted. Heat energy (heating two liters of cold water with a water heater will consume at least 0.05kwh of electricity); third, when the temperature is below 0°C in winter, if the water in the water heater is not used up, although there is a manual ball valve, there is no exhaust pipe , even if the manual ball valve is closed, the water in the pipe cannot be discharged. Therefore, there must be water, therefore, the hot water pipe will burst due to the expansion of the freezing water in the hot water pipe (this phenomenon of pipe burst often occurs in the user group of solar water heaters in winter), causing great harm to the user. Loss (replacing a pair of solar water heater hot water pipes is calculated on an average of 15 meters, and the cost of materials and installation needs to be more than 200 yuan).

The above three problems of wasting water resources, wasting heat energy, and bursting pipes have seriously affected the use effect of solar water heaters, and also affected the promotion of this environmentally friendly energy product solar water heaters.

Contents of the invention

The utility model is proposed to solve the above-mentioned three problems existing in the current solar water heater, and the purpose is to improve the design of the pipeline system of the solar water heater so as to save water and energy and prevent the pipeline from bursting.

The technical scheme of the utility model is: install a solenoid valve at the outlet of the solar water heater water tank, the outlet of the solenoid valve is equipped with a three-way pipe joint, one end of the three-way pipe joint faces upward and is connected with an exhaust pipe, and the height of the exhaust pipe exceeds the solar water heater. On the top of the water heater tank, the other end of the three-way pipe joint is connected to the hot water pipe.

When you want to use hot water, you can close the solenoid valve switch in the shower room, the solenoid valve is powered on, the hot water flows into the hot water pipe through the solenoid valve and then to the shower head, all the water in the hot water pipe will be used, stop using Only need to disconnect the electromagnetic valve switch at the same time, and there will be no water after the remaining water in the hot water pipe is emptied. Compared with the current solar water heater pipeline control, the device can save water and energy for the solar water heater and prevent its pipeline The effect of road bursting is beneficial to the promotion of solar water heaters, and has the advantages of simple structure and easy operation.

Description of drawings

Fig. 1 is the pipeline system diagram of existing solar water heater,

Fig. 2 is the pipeline system diagram of the utility model.

In the picture: 1-solar water heater water tank, 2-manual ball valve, 3-hot water pipe, 4-hot water valve, 5-exhaust pipe, 6-solenoid valve, 7-shower head, 8-tee pipe joint.

Detailed ways

As shown in Figure 2, the solar water heater water-saving, energy-saving, explosion-proof pipeline control device of the utility model includes a hot water pipe 3, a hot water valve 4, a shower head 7 and a solar water heater water tank 1, and is characterized in that: in the solar water heater A solenoid valve 6 is installed at the outlet of the water tank 1, and the outlet of the solenoid valve is equipped with a three-way pipe joint 8. One end of the three-way pipe joint faces upward and is connected with an exhaust pipe 5. The height of the exhaust pipe exceeds the top of the solar water heater water tank 1, and the three-way pipe joint The other end of the pipe joint is connected to the hot water pipe 3.

The device replaces the original manual ball valve of the solar hot water outlet with a normally closed solenoid valve with low pressure and low power (about 12v, 10w), and then installs a three-way pipe joint at the outlet of the solenoid valve, so that it can play a role. It saves water and energy for the solar water heater and prevents its pipeline from bursting.

Used electromagnetic valve 6 selects the electromagnetic valve of normally closed type for use, and electromagnetic valve is closed at ordinary times, adds that exhaust pipe is exhausted so the water in the hot water pipe can be exhausted, and there is no water in the hot water pipe at ordinary times. When hot water is to be used, the electromagnetic valve switch can be closed in the shower room, the electromagnetic valve is powered on and opened, hot water flows into the hot water pipe 3 through the electromagnetic valve and then to the shower head 7, and all the water in the hot water pipe will be used. Just turn off the electromagnetic valve switch when it is not in use, and there will be no water left after the remaining water in the hot water pipe is emptied. The switch is disconnected, and the solenoid valve is de-energized and closed, and the hot water in the hot water pipe continues to flow down under the effect of gravity until exhausted due to exhaust pipe 5 being arranged.

When the temperature is 0°C in winter, the utility model is adopted, because there is no water in the hot water pipe, so the hot water pipe will not burst due to freezing and expansion of water like the current solar water heater, and the effect of anti-explosion is played. Current water heaters also have manual valves that can be manually closed, but the anti-cracking effect must be achieved only when the water in the water heater is used up, and it is very inconvenient to operate. If the water in the water heater is not used up, because it does not have an exhaust pipe, even if the manual ball valve 2 is closed, the water in the hot water pipe cannot be discharged, and the pipe will burst due to the freezing of water in the pipe.

Claims (2)

1. A solar water heater water-saving, energy-saving, explosion-proof pipeline control device, comprising a hot water pipe (3), a hot water valve (4), a shower head (7) and a solar water heater water tank (1), is characterized in that: A solenoid valve (6) is installed at the outlet of the solar water heater water tank (1). The outlet of the solenoid valve is equipped with a three-way pipe joint (8). One end of the three-way pipe joint faces upward and is connected with an exhaust pipe (5). The other end of the pipe joint is connected to the hot water pipe (3). 2. The water-saving, energy-saving and explosion-proof pipeline control device for solar water heaters according to claim 1, characterized in that: the height of the exhaust pipe (5) exceeds the top of the solar water heater water tank (1).

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