CN203052833U - Anti-freezing solar water heating system - Google Patents

Abstract

The utility model relates to a domestic hot water system, in particular to an antifreeze solar hot water system. An antifreeze solar water heating system, comprising a water storage tank (1); the lower part of the water storage tank (1) is connected to the water terminal (8) through the water outlet pipe (2); the cold water inlet pipe is connected to the water outlet pipe (2) (4); insert a suction pipe (6) into the cold water section (7) of the water outlet pipe (2) close to the water terminal (8); the water suction pipe (6) is connected to the water pump (3); the water outlet pipe ( 2) A temperature sensor (10) is installed inside; the temperature sensor (10) is connected to the controller (9); the controller (9) is connected to the water pump (3). The temperature sensor can detect the water temperature in the water pipe, and the controller can control the operation of the water pump according to the temperature signal of the temperature sensor, so that the hot water in the water storage tank flows into the water outlet pipe, thereby preventing the water outlet pipe from freezing.

Description

A kind of antifreeze solar water heating system

technical field

The utility model relates to a domestic hot water system, in particular to an antifreeze solar hot water system. the

Background technique

Commonly used solar water heaters, when water is needed, it takes a long time to turn on the tap for hot water to flow out slowly. On the one hand, it is very inconvenient to use, on the other hand, the cold water that flows out is often let off by the user, resulting in Waste of resources. the

In winter, due to the extremely low outside temperature, it is easy to cause freezing in the outlet pipe of the solar water heater, and then block the outlet pipe. the

Utility model content

The utility model provides an antifreeze solar water heating system capable of preventing freezing of the interior of the outlet pipe in winter while hot water is turned on and used immediately. In order to achieve the above-mentioned purpose of the invention, the utility model adopts the following technical means:

A solar hot water system, comprising a water storage tank; the lower part of the water storage tank is connected to a water terminal through a water outlet pipe; the cold water inlet pipe is connected to the water outlet pipe; a water suction pipe is inserted into the cold water section of the water outlet pipe close to the water use terminal; The water suction pipe is connected to the water pump; a temperature sensor is arranged in the water outlet pipe; the temperature sensor is connected to the controller; and the controller is connected to the water pump.

The water outlet of the water pump leads to the water storage tank;

A temperature sensor connected to the controller is also arranged in the connecting pipe between the water pump and the water storage tank.

The beneficial effect of the utility model is that: the cold water in the cold water section of the water outlet pipe is first extracted by the water pump, so that the water terminal starts to use hot water, which is very convenient to use; the extracted cold water is pumped into the water storage tank, avoiding the waste of water resources The temperature sensor can detect the water temperature in the water pipe, and the controller can control the operation of the water pump according to the temperature signal of the temperature sensor, so that the hot water in the water storage tank flows into the water outlet pipe, thereby preventing the water outlet pipe from freezing. the

Description of drawings

Fig. 1 is a structural schematic diagram of an antifreeze solar water heating system of the present invention. the

Detailed ways

Below in conjunction with accompanying drawing, the preferred embodiment of a kind of antifreezing solar water heating system of the utility model is described in detail:

As shown in Figure 1, the solar water heating system mainly includes a water storage tank 1, the outlet pipe 2 is connected to the bottom of the water storage tank 1, and the outlet pipe 2 extends downwards all the way, and the water terminal 8 is connected at the bottom, such as water faucets, spraying and other water equipment .

The half waist of outlet pipe 2 is connected to cold water inlet pipe 4 through a three-way pipe, and a solenoid valve 5 is installed on the cold water inlet pipe 4, enters outlet pipe 2 in order to control cold water. the

The section of the water outlet pipe 2 close to the water terminal 8 is the cold water section 7, and the cold water section 7 also inserts a suction pipe 6 into the cold water section 7 through a three-way pipe. The water inlet end of the suction pipe 6 is close to the water outlet terminal 8. The water outlet of the water pump is located outside the three-way pipe, and is connected to the water pump 3, and the water outlet of the water pump 3 leads to the water storage tank 1. the

A temperature sensor 10 is installed in the water outlet pipe 2, and a temperature sensor 10 is also arranged in the connecting pipe between the water pump 3 and the water storage tank 1. The two temperature sensors 10 are connected with the controller 9, and the controller 9 is connected with the water pump 3. The chip in the controller 9 is written with a program, which can selectively control the operation or stop of the water pump 3 according to the temperature signal of the temperature sensor 10 . For example, the controller 9 sets a threshold temperature of 5°C. When the temperature is lower than 5°C, the water pump 3 is controlled to run, and when the temperature is higher than 5°C, the water pump 3 is controlled to stop. the

When in use, first open the electromagnetic valve 5, feed cold water into the water outlet pipe 2, and the cold water flows back into the water storage tank 1, and the electromagnetic valve 5 is closed after the amount of water is suitable. The cold water in the water storage tank 1 is heated by solar energy to become hot water. When hot water needs to be used, before opening the water terminal 8, first turn on the water pump 3, and pump the remaining cold water in the outlet pipe 2 back into the water storage tank 1, so that the hot water can fill the entire outlet pipe 2. The terminal 8 uses hot water, and the hot water can be used immediately, which is very convenient. The extracted cold water is pumped into the water storage tank, which avoids the waste of water resources. the

In winter, due to the low external temperature, the water temperature in the outlet pipe 2 decreases. When the water temperature is lower than 5°C, the temperature sensor 10 detects a temperature signal and transmits it to the controller 9. The controller 9 controls the operation of the water pump 3 and turns the outlet pipe The remaining cold water in 2 is pumped back into the water storage tank 1, so that hot water flows into and out of the water pipe 2; when the temperature in the water outlet pipe 2 rises above 5°C, the controller 9 controls the water pump 3 to stop running. In this manner, the water outlet pipe 2 is effectively prevented from being blocked by freezing. the

Claims (3)

1. an antifreeze solar water heating system comprises storage tank (1); Described storage tank (1) below connects water terminal (8) by outlet pipe (2); Described outlet pipe (2) is gone up and is connected cold water inlet (4); It is characterized in that, near inserting a drinking-water pipe (6) in the cold water section (7) of the outlet pipe (2) of water terminal (8); Described drinking-water pipe (6) connects water pump (3); Temperature sensor (10) is set in the described outlet pipe (2); Described temperature sensor (10) is connected with controller (9); Described controller (9) is connected with water pump (3).

2. a kind of antifreeze solar water heating system according to claim 1 is characterized in that, the delivery port of described water pump (3) leads to storage tank (1).

3. a kind of antifreeze solar water heating system according to claim 2 is characterized in that, also is provided with the temperature sensor (10) that is connected with controller (9) in the tube connector between described water pump (3) and the storage tank (1).

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