CN201126270Y - Solar water heater with auxiliary electric heating - Google Patents

Abstract

The utility model solves the problem that current solar water heater with an electric booster which has a slow speed of electric heating and cannot meet the requirement of supplying hot water arbitrarily, provides a solar water heater with an electric booster for supplying hot water once being turned on, comprising an instantaneous water heater mounted on an water outlet pipe, a water tank, a water inlet and outlet pipe connected to the water tank. The instantaneous water heater can be applied to heating the water from the water pipe instantaneously so as to meet use requirement.

Description

Solar water heater with auxiliary electric heating

Technology area

The utility model relates to a solar water heater with auxiliary electric heating.

Background technique

In the existing solar water heaters with auxiliary electric heating, the electric heaters are all installed on the water tank of the solar water heater. Due to the large amount of water in the water tank and the small power of electric heating, when the electric heater is used for auxiliary heating, the heating speed is slow. Slow, can not meet the customer's requirement of using hot water at any time; In addition, the hot water in the water tank after electric heating is often not all used up, which also causes a waste of electric energy.

Utility model content

The utility model solves the existing solar water heater with an auxiliary electric heater. The electric auxiliary heating speed is slow and cannot meet the problem of hot water when you want to use hot water. Heater for solar water heater.

The solar water heater with auxiliary electric heating includes an instant electric heater arranged on a water outlet pipeline, a water tank, and an inlet and outlet water pipeline communicated with the water tank. The instant electric heater can be used to instantly heat the water flowing out of the water outlet pipe to meet the requirements of use.

The above-mentioned solar water heater also includes an intelligent controller, two water temperature sensors respectively arranged in the water tank and the water outlet pipeline, the output of the water temperature sensor is connected to the input of the intelligent controller, and the output of the intelligent controller is connected to the instant electric heater.

The above-mentioned solar water heater also includes a water pump, return water, and water inlet solenoid valves. They are all controlled by intelligent controllers.

The intelligent controller can compare the water temperature in the water tank with the set water temperature, and control whether the instant electric heater is turned on or not according to their difference and the water temperature in the outlet pipe.

The above-mentioned solar water heater also includes a return water pipeline connecting the water outlet pipeline connected to the instant electric heater with the water tank, and a return water solenoid valve is set on the return water pipeline, and the control end of the return water solenoid valve is connected to an intelligent controller Output. When the water temperature in the outlet pipe is close to 0°, the intelligent controller controls the return water solenoid valve and the water pump to open, the instant electric heater is turned on, and the outlet pipe is filled with hot water and then stops automatically to ensure that the water in the outlet pipe will not Freeze and damage the water outlet pipe.

In the solar water heater mentioned above, a water flow switch is arranged on the outlet pipe, and the output of the water flow switch is connected to the input of the intelligent controller. When water is used, the water flow switch acts, and the instant electric heater is started to heat through the intelligent controller.

The solar water heater mentioned above also includes a circulation pump arranged on the water outlet pipeline, and the control end of the circulation pump is connected to the output of the intelligent controller. When water is used, it is pressurized by a circulation pump, making bathing comfortable.

The above solar water heater also includes a water inlet solenoid valve arranged on the water inlet pipeline, and the control end of the water inlet solenoid valve is connected to the output of the intelligent controller.

Description of drawings

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

Detailed ways

In the solar water heater with auxiliary electric heating shown in Fig. 1, the water outlet pipeline 1 communicates with the water tank 2, and the circulation pump 3 and the instant electric heater 4 are sequentially connected to the water outlet pipeline 1. A water inlet solenoid valve 6 is arranged on the water inlet pipeline 5 communicated with the water tank. The two ends of the return water pipeline 8 of the return water solenoid valve 7 are set, one end is connected with the water outlet pipeline after the instant electric heater, and the other end is connected with the water inlet pipeline after the water inlet solenoid valve 6 . Water flow switch 9 is set on the water outlet pipeline.

The output of the intelligent controller 10 is respectively connected to the control end of the water inlet solenoid valve 6 , the control end of the return water solenoid valve 7 , the control end of the circulation pump 3 , and the instant electric heater 4 . Two water temperature sensors 11 are respectively arranged in the water tank and on the water outlet pipeline, and the output of the water temperature sensor and the output of the water flow switch 9 are connected to the input of the intelligent controller.

Before using water, start the instant electric heater and circulation pump through the intelligent controller, and stop automatically after the outlet pipeline is filled with hot water, so as to ensure that there is hot water when the outlet pipeline is opened.

When water is used, the water flow switch acts, and the circulating pump is started to increase the pressure and the instant electric heater is heated. The intelligent controller automatically adjusts the heating power of the electric heater according to the water temperature of the water tank and the set temperature difference. If the water temperature in the water tank has reached or exceeded the set temperature, the electric heating will be automatically turned off, so as to achieve the purpose of saving electric energy to the greatest extent.

When the water temperature of the outlet pipeline drops to close to 0°C, the instant electric heater and circulation pump are started to circulate, and the pipeline will automatically stop when it is filled with hot water to ensure that the pipeline will not be damaged by freezing.

The utility model has the following advantages: instant electric heating, there is hot water when it is turned on; intelligent control, controlling the opening of the appropriate electric heating power according to the difference between the water temperature of the water tank and the set temperature; sending back the cold water in the pipeline before using water The water tank ensures that there is hot water when it is turned on, and the cold water in the pipeline is not wasted; the water pump is pressurized when using water, and bathing is comfortable; the limited temperature device on the instant electric heater ensures safe use; the instant electric heater is installed in the Indoor, the connection is short, easy to maintain; it has antifreeze function.

In the utility model, instant electric heaters, water temperature sensors, intelligent controllers, electromagnetic valves, water flow switches, etc. all belong to the prior art and will not be described again.

Claims (6)

1. A solar water heater with auxiliary electric heating, comprising an electric heater, a water tank, and a water inlet and outlet pipeline connected to the water tank, characterized in that: the electric heater is an instant electric heater, which is arranged on the water outlet pipeline. 2. The solar water heater according to claim 1, characterized in that: it also includes an intelligent controller, two water temperature sensors respectively arranged in the water tank and on the outlet pipeline, the output of the water temperature sensor is connected to the input of the intelligent controller, and the intelligent The output of the controller is connected to the instant electric heater. 3. The solar water heater according to claim 2, characterized in that: it also includes a return water line connecting the water outlet line connected to the instant electric heater with the water tank, and a return water solenoid valve is set on the return water line , the control end of the return water solenoid valve is connected to the output of the intelligent controller. 4. The solar water heater according to claim 3, characterized in that: a water flow switch is provided on the outlet pipe, and the output of the water flow switch is connected to the input of the intelligent controller. 5. The solar water heater according to claim 2, 3 or 4, characterized in that it also includes a circulation pump arranged on the water outlet pipeline, and the control end of the circulation pump is connected to the output of the intelligent controller. 6. The solar water heater according to claim 2, 3 or 4, characterized in that it also includes a water inlet solenoid valve arranged on the water inlet pipeline, and the control end of the water inlet solenoid valve is connected to the output of the intelligent controller.

Images