CN201166486Y - A microcomputer-controlled automatic water inlet system for solar water heaters - Google Patents

Abstract

The utility model discloses a microcomputer-controlled fully automatic water inlet system for a solar water heater, which comprises a float switch (1), a solenoid valve (2) and a microcomputer time-controlled switch (3). An end hole on one side of a three-way connector (5) is connected to an overflow port through an overflow pipe (6), and an end hole on the other side is connected to an exhaust pipe (7). The float switch (1) extends into the three-way connector (5) through the middle end hole of the three-way connector (5). The wiring terminal on the upper part of the float switch (1) is respectively connected to a live wire of a power supply and a wiring post at an input end of a microcomputer time-controlled switch (3). The other wiring post at the input end of the microcomputer time-controlled switch (3) is connected to a neutral wire of a power supply. The inlet/outlet pipe (8) of the solar water heater is three-way connected to a hot water pipe (9) and a cold water pipe (10). The cold water pipe (10) is provided with a solenoid valve (2). The output end of the microcomputer time-controlled switch (3) is connected to a power line of the solenoid valve (2).

Description

A microcomputer-controlled automatic water inlet system for solar water heaters

technical field

The utility model relates to a microcomputer-controlled automatic water inlet system for a solar water heater.

Background technique

Current solar water heaters often adopt artificial water intake after the water tank is empty, which not only complicates the operation, but also cannot turn off the water source in time when the water in the water tank is full, causing a large amount of water to come out, wasting water resources. In addition, solar water heaters are generally placed at the highest point of the house. When the water consumption peaks at night, the water pressure may not be able to send up, so that the water in the solar water heater tank is returned to the pipeline.

Contents of the invention

The utility model relates to a microcomputer-controlled fully automatic water inlet system for a solar water heater, which can automatically control the water inlet of solar energy, which not only facilitates the water inlet of solar energy, but also avoids wasting water sources.

The utility model adopts the following technical solutions: a solar water heater microcomputer-controlled automatic water inlet system, which includes a float switch, a solenoid valve and a microcomputer time-controlled switch, and a three-way connector is connected to the overflow port of the solar water heater water tank through an overflow pipe , the end hole on one side of the tee connector is connected to the overflow port through the overflow pipe, and the end hole on the other side is connected to the exhaust pipe. The float switch extends into the tee from the middle end hole of the tee connector. The terminals on the upper part of the switch are respectively connected with the live wire of the power supply and a terminal of the input terminal of the microcomputer time control switch, and the other terminal of the input terminal of the microcomputer time control switch is connected with the zero line of the power supply. The pipeline and the cold water pipeline are connected by a three-way connection, an electromagnetic valve is arranged on the cold water pipeline, and the output end of the time-controlled switch of the microcomputer is connected with the power line of the electromagnetic valve.

The solenoid valve is located at the junction of the water inlet/outlet pipe and the tee connection between the hot water pipe and the cold water pipe. The microcomputer time control switch is a KG316T microcomputer time control switch. The solenoid valve is a secondary valve opening solenoid valve. The float switch described is FT-V25-PP small float switch.

The utility model has the following beneficial effects: the utility model is provided with a solenoid valve, a microcomputer time control switch and a float switch, the microcomputer time control switch can set the water discharge time to control the water discharge, and when the set time is reached, the solenoid valve is energized, the electromagnetic valve After the valve is powered on, it will automatically open to automatically discharge water into the solar water tank. When the water tank is full, the float switch can be turned off to automatically stop the water discharge. The solar water tank can be staggered to automatically release water, and when the water in the water tank is full, the solenoid valve can be automatically closed in time through the float switch and the microcomputer time control switch, so that the water can be automatically stopped and the water can be prevented from being closed in time. waste of water, and the water intake and discharge of the utility model are carried out automatically without manual operation, which is convenient for solar water intake.

Description of drawings

Fig. 1 is the structural representation of the utility model

Detailed ways

In Fig. 1, the utility model is a microcomputer-controlled automatic water inlet system for solar water heaters, which includes a float switch 1, a solenoid valve 2 and a microcomputer time-controlled switch 3, and the microcomputer time-controlled switch 3 is a KG316T microcomputer time-controlled switch , the float switch 1 is a small float switch of FT-V25-PP, the solenoid valve 2 is a solenoid valve for secondary valve opening, and the overflow port of the solar water heater tank 4 is connected with a three-way connector 5 through an overflow pipe 6, and the three-way connection The end hole on one side of the head 5 is connected to the overflow port through the overflow pipe 6, and the end hole on the other side is connected to the exhaust pipe 7. The float switch 1 extends from the middle end hole of the tee connector 5 into the tee connector 5 Inside, the terminal on the upper part of the float switch 1 is connected with the live wire 12 of the power supply and a terminal of the input terminal of the time control switch 3 of the microcomputer respectively, and the other terminal of the input terminal of the time control switch 3 of the microcomputer is connected with the zero line 11 of the power supply, and the input of the solar water heater The /outlet pipe 8 is connected with the hot water pipe 9 and the cold water pipe 10 in a three-way connection. The valve 2 and the output end of the microcomputer time control switch 3 are connected with the power line of the solenoid valve 2.

First, set the water inlet time through the microcomputer time control switch 3, and when the time is up, the solenoid valve 2 is energized, and when the coil of the solenoid valve 2 is energized, electromagnetic force is generated to attract the movable iron core, and the pressure on the upper part of the valve chamber is reduced below The force on the lower side makes the main valve port form a passage under the action of the pressure difference, so that cold water can enter the water tank through the solenoid valve 2 and enter the water. When the water tank is full, the water enters the float switch 1 from the overflow pipe 6 Inside, the floating ball in the float switch 1 floats to turn off the solenoid valve 2 through the microcomputer time control switch, thereby closing the solenoid valve and stopping water intake.

Claims (5)

1. A microcomputer-controlled automatic water inlet system for solar water heaters, characterized in that it includes a float switch (1), a solenoid valve (2) and a microcomputer time-controlled switch (3). A tee connector (5) is connected with the overflow pipe (6), the end hole on one side of the tee connector (5) is communicated with the overflow port through the overflow pipe (6), and the end hole on the other side is connected to the exhaust pipe (7). ) connection, the float switch (1) is stretched into the tee by the middle end hole of the tee connector (5), and the terminal on the top of the float switch (1) is connected with the power live wire (12) and the microcomputer time control switch ( 3) A binding post at the input end is connected, and another binding post at the input end of the microcomputer time control switch (3) is connected with the power zero line (11), and the inlet/outlet pipe (8) of the solar water heater and the hot water pipe (9) are connected. ) and the cold water pipeline (10) are connected by a tee, and the cold water pipeline (10) is provided with a solenoid valve (2), and the output end of the microcomputer time control switch (3) is connected with the power line of the solenoid valve (2). 2. The microcomputer-controlled fully automatic water inlet system for solar water heaters according to claim 1, characterized in that the solenoid valve (2) is located between the inlet/outlet pipe (8) and the hot water pipe (9) and cold water pipe (10) ) at the junction of the tee. 3. The microcomputer-controlled automatic water inlet system for solar water heaters according to claim 1, characterized in that the microcomputer time-controlled switch (3) is a KG316T microcomputer time-controlled switch. 4. The microcomputer-controlled fully automatic water inlet system for solar water heaters according to claim 1 or 2, characterized in that the solenoid valve (2) is a secondary opening solenoid valve. 5. The microcomputer-controlled automatic water inlet system for solar water heaters according to claim 1, characterized in that said float switch (1) is a small float switch of FT-V25-PP.

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