CN203687390U - Cold water recycling device for bathroom - Google Patents

Abstract

A cold water recycling device for a bathroom, comprising a hot water tank, a tap water inlet pipe for delivering cold water to the hot water tank, a hot water outlet pipe for outputting hot water from the hot water tank, a tap water inlet pipe and a hot water outlet A return pipe is provided between the water pipes to allow the cold water in the hot water outlet pipe to flow back to the tap water inlet pipe. A temperature sensor I for detecting the water temperature in the pipe is embedded in the inner wall of the hot water outlet pipe. The temperature sensor I will detect the The temperature information is transmitted to the microprocessor, and the microprocessor controls the switch on the hot water outlet pipe and the opening and closing of the solenoid valve and the water pump on the return pipe according to the received temperature information, so as to realize the return of cold water in the hot water outlet pipe In the utility model, the cold water in the hot water outlet pipe circulates into the tap water pipe through the return pipe and then flows into the hot water tank for reheating, which effectively saves water resources. The setting of the water pump can make the cold water reach the water tank quickly, shortening the waiting time Time for hot water.

Description

A cold water recycling device for bathrooms

technical field

The utility model relates to the field of household daily necessities, in particular to a cold water recycling device for bathrooms.

Background technique

At present, people usually use a shower to take a bath. When taking a bath, the hot water in the hot water pipe that does not use hot water continuously will cool down quickly. When the hot water is used again, the cold water must be discharged to use the hot water. It is to discharge the cold water in the hot water pipe directly through the faucet into the sewer. This wastes a lot of water resources.

Utility model content

In order to reduce the waste of water resources caused by the filling of cold water in the hot water pipe before using hot water, the utility model provides a cold water recycling device for bathrooms that can quickly provide hot water and prevent waste of water resources .

The technical solution adopted by the utility model is: a cold water recycling device for bathrooms, including a hot water tank, a tap water inlet pipe for delivering cold water to the hot water tank, and a hot water pipe for outputting hot water from the hot water tank A water outlet pipe, between the tap water inlet pipe and the hot water outlet pipe, there is a return pipe for returning the cold water in the hot water outlet pipe to the tap water inlet pipe. The temperature sensor Ⅰ of the water temperature, the temperature sensor Ⅰ transmits the detected temperature information to the microprocessor, and the microprocessor controls the switch set on the hot water outlet pipe and the solenoid valve and water pump set on the return pipe according to the received temperature information Opening and closing, so as to realize the backflow of cold water in the hot water outlet pipe.

A water level sensor is arranged in the hot water tank.

A temperature display is installed outside the hot water outlet pipe for displaying the temperature of the water in the hot water outlet pipe.

The end of the hot water outlet pipe is connected with a shower head, and a temperature sensor II is arranged on the spray wall below the shower head.

The hot water tank is equipped with an electric heater, a water inlet ball valve is installed on the hot water tank, a one-way valve is installed on the pipeline between the tap water inlet pipe and the water inlet ball valve, and the outlet of the return pipe is located at the water inlet ball valve and the one-way valve. between.

The top of the hot water tank is provided with an overflow port.

Beneficial effects of the utility model: in the utility model, the cold water in the hot water outlet pipe circulates into the tap water pipeline through the return pipe and then flows into the hot water tank for reheating, which effectively saves water resources, and the setting of the water pump can make the cold water flow quickly. Reach the water tank, shortening the waiting time for hot water.

Description of drawings

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

Fig. 2 is the circuit diagram of the present utility model;

Marks in the figure: 1. Hot water tank, 2. Tap water inlet pipe, 3. Hot water outlet pipe, 4. Return pipe, 5. Temperature sensor Ⅰ, 6. Microprocessor, 7. Solenoid valve, 8. Water pump, 9 , switch, 10, shower head, 11, water inlet ball valve, 12, one-way valve.

Detailed ways

As shown in the figure, a cold water recycling device for bathrooms includes a hot water tank 1, a tap water inlet pipe 2 for delivering cold water to the hot water tank 1, and a hot water outlet for outputting hot water from the hot water tank 1. Water pipe 3, between the tap water inlet pipe 2 and the hot water outlet pipe 3, there is a return pipe 4 that makes the cold water in the hot water outlet pipe 3 flow back to the tap water inlet pipe 2, and on the inner wall of the hot water outlet pipe 3 Embedded with a temperature sensor I5 for detecting the water temperature in the pipe, the temperature sensor I5 transmits the detected temperature information to the microprocessor 6, and the microprocessor 6 controls the switch set on the hot water outlet pipe 3 according to the received temperature information 9 and the opening and closing of the electromagnetic valve 7 and the water pump 8 arranged on the return pipe 4, so as to realize the return of cold water in the hot water outlet pipe 3, the water level sensor is arranged in the hot water tank 1, and the hot water outlet pipe 3. A temperature display is installed on the outside to display the temperature of the water in the hot water outlet pipe 3. The end of the hot water outlet pipe 3 is connected to a shower nozzle 10, and a temperature sensor II is installed on the spray wall below the shower nozzle 10. , the hot water tank 1 has an electric heater, the hot water tank 1 is equipped with a water inlet ball valve 11, and the pipeline between the tap water inlet pipe 2 and the water inlet ball valve 11 is equipped with a check valve 12, and the outlet of the return pipe is located at Between the water inlet ball valve 11 and the one-way valve 12, the top of the hot water tank 1 is provided with an overflow port.

In the working process of the utility model, if the hot water outlet pipe 3 is filled with cold water, the temperature sensor I5 transmits the temperature information to the microprocessor 6, and the microprocessor 6 controls the switch 9 to close, so that the electromagnetic valve 7 and the water pump 8 are located The circuit is turned on, the solenoid valve 7 is opened, the water pump 8 works, the cold water is sucked into the return pipe 4 and then flows into the hot water tank 1 for recovery. If the water temperature in the hot water outlet pipe 3 reaches the preset temperature, the temperature sensor Ⅰ5 will transmit the temperature information to the Processor 6, and through the microprocessor 6 control switch 9 to open, so that the circuit where the electromagnetic valve 7 and the water pump 8 are located is closed, and then the hot water no longer flows to the hot water tank 1, and the cold water in the return pipe 4 is blocked by the electromagnetic valve 7 Block and cannot flow into the hot water inlet pipe.

In the utility model, the cold water in the hot water outlet pipe circulates into the tap water pipe through the return pipe and then flows into the hot water tank for reheating, which effectively saves water resources. The setting of the water pump can make the cold water reach the water tank quickly, shortening the waiting time. water time.

Claims (6)

1. A cold water recycling device for bathrooms, including a hot water tank (1), a tap water inlet pipe (2) for delivering cold water to the hot water tank (1), and a heat output pipe from the hot water tank (1). The hot water outlet pipe (3) for water is characterized in that: between the tap water inlet pipe (2) and the hot water outlet pipe (3), there is a device to allow the cold water in the hot water outlet pipe (3) to flow back to the tap water inlet The return pipe (4) of the water pipe (2) has a temperature sensor I (5) embedded in the inner wall of the hot water outlet pipe (3) for detecting the water temperature in the pipe, and the temperature sensor I (5) will detect the temperature The information is transmitted to the microprocessor (6), and the microprocessor (6) controls the switch (9) set on the hot water outlet pipe (3) and the solenoid valve ( 7) and the opening and closing of the water pump (8), so as to realize the return of cold water in the hot water outlet pipe (3). 2. A cold water recycling device for bathrooms according to claim 1, characterized in that: said hot water tank (1) is provided with a water level sensor. 3. A cold water recycling device for bathrooms according to claim 1, characterized in that: a temperature display is installed outside the hot water outlet pipe (3) for displaying the temperature of the hot water outlet pipe ( 3) The temperature of the inner water. 4. A cold water recycling device for bathrooms according to claim 1, characterized in that: the end of the hot water outlet pipe (3) is connected with a shower head (10), and the shower head (10) There is a temperature sensor II on the lower spray wall. 5. A cold water recycling device for bathrooms according to claim 1, characterized in that: the hot water tank (1) is equipped with an electric heater, and the hot water tank (1) is equipped with a water inlet The ball valve (11), the pipe between the tap water inlet pipe (2) and the water inlet ball valve (11) is equipped with a one-way valve (12), and the outlet of the return pipe is located between the water inlet ball valve (11) and the one-way valve (12). between. 6. A cold water recycling device for bathrooms according to claim 1, characterized in that: the top of the hot water tank (1) is provided with an overflow port.

Images