CN2881451Y

CN2881451Y - Solar energy water heater water supply system having frozen-proof function

Info

Publication number: CN2881451Y
Application number: CNU200620069367XU
Authority: CN
Inventors: 谢兆武
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-17
Filing date: 2006-02-17
Publication date: 2007-03-21
Anticipated expiration: 2016-02-17

Abstract

The utility model aiming directly at the problem that the water supplying pipe of the prior solar energy water heater is freezed easily in winter, discloses a solar energy water heater water supply system having frozen-proof function, which comprises a water tank (1) which is connected with the solar energy heat pipe, a cold and hot water supplying pipe (2), an overflow pipe (3). The upper end of the cold and hot water supplying pipe (2) is extended in the water tank (1), the lower end of the cold and hot water supplying pipe (2) is connected with the water source, a cold water inlet valve (9) and a hot water drain valve (9) are arranged on the cold and hot water supplying pipe, the overflow aperture of the upper end of the overflow pipe (3) is levelled to the highest lever of the water tank (1), the upper end of the overflow pipe (3) is outside the water tank (1). The model characterizes in that: the highest point of the cold and hot water supplying pipe (2) is not lower than the height of the overflow aperture, and an air inlet (5) is arranged on the position of the cold and hot water supplying pipe (2) where is not lower than the height of the overflow aperture, the air inlet (5) is connected with the inlet duct (6), the inlet duct (6) is equipped with the air inlet valve (7). The model can avoid happenning clogging phenomenon caused by freezing in winter, and is of simple structure, the model is very convenient to produce and equip.

Description

Solar water heater water system with antifreeze function

Technical field

The utility model relates to a kind of solar water heater, especially the hot and cold water water system of solar water heater specifically a kind ofly can guarantee that solar water heater hot and cold water feed pipe under the situation of ice up in winter can not freeze or bursting by freezing and the solar water heater water system with antifreeze function that can't use.

Background technology

At present, solar energy is pollution-free with it, environmental protection and inexhaustible, easy to use and be subjected to people's welcome deeply, and it also is one of clean energy resource of wideling popularize of various countries.

Though solar water heater has many advantages, but people find in use, very convenient when using in three seasons of spring and summer autumn, but when environment temperature is lower than subzero, water inlet pipe will be crossed low and icing obstruction because of temperature, cause cold water not increase, the phenomenon that hot water is unable to come down, can't normally use to making, this phenomenon is especially obvious at northern area, this has also limited solar water heater to a great extent the promoting the use of of northern area, and the antifreeze problem that therefore solves the water pipe in winter is the difficult problem that the solar water heater manufacturer endeavours to solve always.

Summary of the invention

The purpose of this utility model is at the easily icing in the winter time blocking problem of the feed pipe of prior solar water heater, designs a kind of solar water heater water system with antifreeze function.

The technical solution of the utility model is

A kind of solar water heater water system with antifreeze function, comprise the water tank 1 that is connected with solar energy heat collection pipe, hot and cold water feed pipe 2, overflow pipe 3, the upper end of hot and cold water feed pipe 2 is stretched in the water tank 1, its lower end links to each other with the water source, cold water water intaking valve 9 and hot water effluent's valve 9 are installed on it, the gap of overflow pipe 3 upper ends is concordant with the highest liquid level in the water tank 1, its lower end is positioned at outside the water tank 1 and with atmosphere is on good terms, it is characterized in that the peak of described hot and cold water feed pipe 2 is not less than the height of described overfall, and the height place that is not less than described overfall on described hot and cold water feed pipe 2 is provided with air inlet 5, air inlet 5 is connected with air inlet pipe 6, and air intake valve 7 is installed on the air inlet pipe 6.

Described air inlet 5 or be arranged in water tank 1, or be positioned at outside the water tank 1.

On the air inlet 5 threeway is installed, a road of threeway communicates with hot and cold water feed pipe 2, and one the tunnel communicates with intake-outlet 8, and another road communicates with air inlet pipe 6, and communicate with air inlet pipe 6 a road vertically upward.

The utlity model has following advantage:

1, the utility model can make water emptying in the solar water heater feed pipe by the method that connects air inlet pipe, thereby prevent obstruction, bursting by freezing phenomenon because of the water freezing in the water pipe takes place, solved the normal use problem in solar water heater winter, and then can make solar water heater to be applicable at northern area.

2, simple in structure, manufacturing is installed all very convenient, and market prospects are wide.Not only can be used in the new solar water heater, and can undergo technological transformation to prior solar water heater, market potential is very huge.

Description of drawings

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

The specific embodiment

Following structure drawings and Examples are further described the utility model.

As shown in Figure 1.

A kind of solar water heater water system with antifreeze function, comprise the water tank 1 that is connected with solar energy heat collection pipe, hot and cold water feed pipe 2, overflow pipe 3, the upper end of hot and cold water feed pipe 2 is stretched in the water tank 1, its upper end can be stretched in the water tank 1 by an elbow 4, the peak of elbow 4 is not less than the height of the overfall of overflow pipe 3, air inlet 5 can be arranged on the described elbow 4, and opening upwards also vertically is connected with air inlet pipe 6, air inlet 5 can be arranged in water tank 1, also can be positioned at outside the water tank 1, but to be positioned at outside the water tank 1 is the best (easy for installation), air intake valve 7 is installed on the air inlet pipe 6, the lower end of hot and cold water feed pipe 2 links to each other with water source (as running water), cold water water intaking valve 9 (being commonly called as water supply valve) and hot water effluent's valve 10 are installed on it, and the overfall of overflow pipe 3 is arranged in water tank 1, and concordant with the highest liquid level in the water tank 1, it is positioned at the outer upper end of water tank 1 and upwards is provided with exhaust outlet 11, its lower end be positioned at water tank 1 outer and introduce the user toilet or sewer medium.

Air inlet 5 can directly be processed to form in elbow 4 during concrete enforcement, also can be realized by threeway, when using threeway, a road of threeway communicates with hot and cold water feed pipe 2, one the tunnel communicates with intake-outlet 8, and another road communicates with air inlet pipe 6, and communicate with air inlet pipe 6 a road vertically upward.

Elbow 4 can be the semicircular arc elbow during concrete enforcement, also can be the square elbow, also can be the elbow of oblique bottom, and its circular arc or horizontal component are not less than the upper end position of overflow pipe 3, is beneficial to the water in the following feed pipe of emptying air inlet.

In a word, thereby connect an air inlet pipe so that the water emptying in the hot and cold water feed pipe is realized that antifreeze purpose is a key of the present utility model on solar water heater hot and cold water feed pipe, any structure similarly all belongs to the scope of the utility model protection.

The course of work of the present utility model is:

Under the normal condition, cold water water intaking valve, hot water effluent's valve and intake valve all are in normally off.

When environment temperature during greater than zero degree, this moment is as needing supplementing water in water tank 1, then can open cold water water intaking valve 9, cold water is entering in the water tank 1 through hot and cold water feed pipe 2 (being commonly called as water supply valve) under the effect of hydraulic pressure, till water tank 1 is filled it up with, cold water water intaking valve 9 is closed, because air valve 7 is closed the peak that is higher than hot and cold water feed pipe 2 with the air inlet pipe 6 and the interface of hot and cold water feed pipe 2, cold water can't enter in the air inlet pipe 6 in the last water process.When needs use hot water, open hot water effluent's valve 10, at this moment, the hot water in the water tank 1 can flow out from hot water outlet under the effect of the deep suction of fluid.

When environment temperature is lower than zero degree, for preventing to freeze, can be after last water finishes, open air intake valve 7, open hot water effluent's valve 10 simultaneously, at this moment, the water of hot and cold water feed pipe 2 between the air inlet 5 of hot water effluent's valve 10 and elbow 4 parts can flow out from hot water outlet under the effect of air pressure and strength, and the water in the water tank 1 be because the effect of air can't form continuous current, causes can't form deep suction and in being retained on the water tank.Can close air intake valve 7 and hot water effluent's valve 10 after the water emptying of the water pipe outside hot and cold water feed pipe 2 is arranged in water tank 1, not have water to stop, also just can not produce icing clogging because hot and cold water feed pipe 2 is arranged in water tank 1 outer water pipe.When needs use, can open cold water water intaking valve 9 certain hours earlier, make in the hot and cold water feed pipe 2 and fill with water, close cold water water intaking valve 9 then, open hot water effluent's valve 10, at this moment, the hot water in the water tank 1 can flow out from hot water outlet under the effect of the deep suction of fluid.

Claims

1, a kind of solar water heater water system with antifreeze function, comprise the water tank (1) that is connected with solar energy heat collection pipe, hot and cold water feed pipe (2), overflow pipe (3), the upper end of hot and cold water feed pipe (2) is stretched in the water tank (1), its lower end links to each other with the water source, cold water water intaking valve (9) and hot water effluent's valve (9) are installed on it, the gap of overflow pipe (3) upper end is concordant with the highest liquid level in the water tank (1), its lower end is positioned at outside the water tank (1), it is characterized in that the peak of described hot and cold water feed pipe (2) is not less than the height of described overfall, and the height place that is not less than described overfall on described hot and cold water feed pipe (2) is provided with air inlet (5), air inlet (5) is connected with air inlet pipe (6), and air intake valve (7) is installed on the air inlet pipe (6).

2, the solar water heater water system with antifreeze function according to claim 1 is characterized in that described air inlet (5) or is arranged in water tank (1), or is positioned at outside the water tank (1).

3, the solar water heater water system with antifreeze function according to claim 1, it is characterized in that on the air inlet (5) threeway being installed, a road of threeway communicates with hot and cold water feed pipe (2), one the tunnel communicates with intake-outlet (8), another road communicates with air inlet pipe (6), and communicate with air inlet pipe (6) a road vertically upward.