阅读说明：本技术 一种农村太阳能热水器防冻供水系统 (Anti-freezing water supply system of rural solar water heater ) 是由 高博 于 2019-10-08 设计创作，主要内容包括：本发明公开一种农村太阳能热水器防冻供水系统,包括太阳能热水器以及与太阳能热水器相连的供水管和排水管,供水管和排水管均与自来水管道连接,供水管由外管和内管,外管与内管之间形成一个环形空间,外管外涂覆一层保温层,太阳能热水器的储水罐中安装有水位传感器和第一水温传感器,供水管上连接有第二水温传感器,供水管上连接有供水阀,排水管是上连接有排水阀；还包括微控制器,水位传感器、第一水温传感器、第二水温传感器、供水阀和排水阀均与微控制器电连接。本发明能够有效地防止冬天温度过低,太阳能热水器的供水管结冰。(The invention discloses an anti-freezing water supply system of a rural solar water heater, which comprises a solar water heater, a water supply pipe and a water discharge pipe, wherein the water supply pipe and the water discharge pipe are connected with the solar water heater, the water supply pipe is composed of an outer pipe and an inner pipe, an annular space is formed between the outer pipe and the inner pipe, a heat insulation layer is coated outside the outer pipe, a water level sensor and a first water temperature sensor are installed in a water storage tank of the solar water heater, the water supply pipe is connected with a second water temperature sensor, the water supply pipe is connected with a water supply valve, and the water; the water level sensor, the first water temperature sensor, the second water temperature sensor, the water supply valve and the drain valve are all electrically connected with the microcontroller. The invention can effectively prevent the water supply pipe of the solar water heater from freezing due to the over-low temperature in winter.)

1. An anti-freezing water supply system of a rural solar water heater comprises a solar water heater, a water supply pipe and a water discharge pipe, wherein the water supply pipe and the water discharge pipe are connected with the solar water heater and are both connected with a tap water pipeline;

the water level sensor, the first water temperature sensor, the second water temperature sensor, the water supply valve and the drain valve are all electrically connected with the microcontroller.

2. The anti-freezing water supply system of the solar water heater as claimed in claim 1, wherein the annular space between the outer pipe and the inner pipe is filled with heat insulation cotton.

3. The anti-freezing water supply system of the solar water heater according to claim 1, wherein an exhaust valve is arranged at the upper part of a water storage tank of the solar water heater and is communicated with the outer pipe through an exhaust pipe, a pressure sensor is further arranged inside the solar water heater, and the exhaust valve and the pressure sensor are respectively and electrically connected with the microcontroller.

4. The anti-freezing water supply system of the solar water heater as claimed in claim 1, wherein the microcontroller is a single chip microcomputer.

Technical Field

The invention relates to an anti-freezing water supply system, in particular to an anti-freezing water supply system of a rural solar water heater.

Background

With the improvement of the living standard of the rural area, for more convenient life, almost every household in the rural area is provided with a solar water heater, especially in winter, people can wash vegetables, clothes, courtyards and the like by using water in the solar water heater, but the water pipe is frozen due to too low temperature in winter, so that the water supply pipe cannot convey water to the solar water heater, and therefore, the solar water heater is in an idle state under the condition of too low temperature in winter, and therefore, resource waste is caused to a certain extent.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an anti-freezing water supply system for a rural solar water heater, which can avoid the condition that the temperature in winter is too low and tap water cannot be conveyed into the solar water heater due to the freezing of a water supply pipe.

The invention relates to an anti-freezing water supply system of a rural solar water heater, which comprises a solar water heater, a water supply pipe and a water discharge pipe, wherein the water supply pipe and the water discharge pipe are connected with the solar water heater, the water supply pipe is composed of an outer pipe and an inner pipe, an annular space is formed between the outer pipe and the inner pipe, a heat insulation layer is coated outside the outer pipe, a water level sensor and a first water temperature sensor are installed in a water storage tank of the solar water heater, the water supply pipe is connected with a second water temperature sensor, the water supply pipe is connected with a water supply valve, and; the water level sensor, the first water temperature sensor, the second water temperature sensor, the water supply valve and the drain valve are all electrically connected with the microcontroller.

As the improvement of the technical scheme, the annular space between the outer pipe and the inner pipe is filled with the heat insulation cotton, so that the heat insulation effect on water in the water supply pipe is effectively realized, and the phenomenon that the pipe is frozen due to the fact that the temperature is too low in winter is avoided.

As a further improvement of the technical scheme, the upper part of a water storage tank of the solar water heater is provided with an exhaust valve, the exhaust valve is communicated with the outer pipe through the exhaust pipe, the solar water heater is also internally provided with a pressure sensor, the exhaust valve and the pressure sensor are respectively and electrically connected with the microcontroller, hot air exhausted by the exhaust valve is directly conveyed into an annular space between the outer pipe and the inner pipe through a conveying pipe, the temperature of the wall of the inner pipe and the wall of the outer pipe are raised by utilizing the heat of the hot air, and the condition that water in the pipe is frozen.

As the preferable scheme of the technical scheme of the invention, the microcontroller is a single chip microcomputer, and has the advantages of small volume, simple structure and high reliability.

The water outlet pipe is connected with the tap water pipeline, so that when the temperature in winter is too low, hot water in the solar water heater can be discharged into the tap water pipeline through the water outlet pipe, the temperature of tap water is increased, and the tap water is prevented from freezing.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings.

As shown in the figure, the anti-freezing water supply system of the rural solar water heater 7 comprises a solar water heater 7, a water supply pipe 3 and a water discharge pipe 1 which are connected with the solar water heater 7, wherein the water supply pipe 3 and the water discharge pipe 1 are both connected with a tap water pipeline 2, the water supply pipe 3 comprises an outer pipe and an inner pipe, an annular space is formed between the outer pipe and the inner pipe, a heat insulation layer is coated outside the outer pipe, a water level sensor and a first water temperature sensor 5 are installed in a water storage tank of the solar water heater 7, the water supply pipe 3 is connected with a second water temperature sensor 4, the water supply pipe 3 is connected with a; an exhaust valve 8 is arranged on the upper portion of a water storage tank of the solar water heater 7, the exhaust valve 8 is communicated with an outer pipe through an exhaust pipe 9, a pressure sensor 6 is further mounted inside the solar water heater 7, and the solar water heater further comprises a microcontroller, and the water level sensor, the first water temperature sensor 5, the second water temperature sensor 4, a water supply valve, a drain valve, the exhaust valve 8 and the pressure sensor 6 are all electrically connected with the microcontroller.

When the solar water heater is used, the water level sensor monitors water level information in the water storage tank of the solar water heater 7, when the water level information monitored by the water temperature sensor is lower than a set value, the information is transmitted to the microcontroller, the microcontroller controls the water supply valve to be opened, water is supplied to the water storage tank of the solar water heater 7 through the water supply pipe 3 until the water level sensor monitors that the water level reaches the set value, and the microcontroller controls the water supply valve to be closed to stop supplying water.

The first water temperature sensor 5 monitors the water temperature in the water storage tank of the solar water heater 7, when the water temperature sensor does not reach a set value, the information is transmitted to the microcontroller, the microcontroller controls the solar water heater 7 to boil water until the water temperature reaches the set value of the first water temperature sensor 5, and the microcontroller controls the solar water heater 7 to stop boiling water.

The second water temperature sensor 4 monitors the temperature information of the water supply pipe 3, the temperature seen by the second water temperature sensor 4 is lower than a set value and is transmitted to the microcontroller, the microcontroller controls the drain valve to be opened, and hot water is discharged into the tap water pipeline 2 through the drain pipe 1 so as to improve the water temperature in the tap water pipeline 2 and prevent the water in the tap water pipeline 2 from icing due to over-low temperature.

The pressure sensor 6 monitors pressure information in a water storage tank of the solar water heater 7, when the pressure in the water storage tank is higher than a set value, the information is transmitted to the microcontroller, the microcontroller controls the drain valve to be opened, and hot gas discharged by the exhaust valve 8 enters the annular space of the water supply pipe 3 through the exhaust pipe 9, so that the water temperature in the water supply pipe 3 is increased, the water in the water supply pipe 3 is effectively prevented from being frozen due to too low temperature, and resource utilization is facilitated.