Domestic hot water supply system

Abstract

A domestic hot water supply system, comprising a water heater, a cold water pipe and a hot water pipe connected to the water heater respectively at one end, wherein the cold water pipe is connected to a water main at another end, and one or more water points are arranged in parallel between the cold water pipe and the hot water pipe, wherein a water pump is arranged between the water heater and the water point closest to the water heater on the hot water pipe, the water pump has a control module, the control module includes a signal receiver, a check valve is disposed at a farthest water point from the water heater between the cold water pipe and the hot water pipe, and a temperature sensor is disposed on the side of the check valve adjacent to the hot water pipe, the temperature sensor includes a signal transmitter.

What is claimed is: 
     
         1 . A domestic hot water supply system, comprising a water heater, a cold water pipe and a hot water pipe connected to the water heater respectively at one end, wherein the cold water pipe is connected to a water main at another end, and one or more water points are arranged in parallel between the cold water pipe and the hot water pipe, characterized in that: a water pump is arranged between the water heater and the water point closest to the water heater on the hot water pipe, the water pump has a control module, the control module includes a signal receiver, a check valve is disposed at a farthest water point from the water heater between the cold water pipe and the hot water pipe, and a temperature sensor is disposed on the side of the check valve adjacent to the hot water pipe, and the temperature sensor includes a signal transmitter. 
     
     
         2 . The domestic hot water supply system according to  claim 1 , wherein a check valve is disposed between the cold water pipe and the hot water pipe at each water point, and a temperature sensor is disposed on the side of the check valve adjacent to the hot water pipe, and the temperature sensor includes a signal transmitter. 
     
     
         3 . The domestic hot water supply system according to  claim 1 , wherein the temperature sensor further comprises a power source module. 
     
     
         4 . The domestic hot water supply system according to  claim 3 , wherein the power source module is self-powered. 
     
     
         5 . The domestic hot water supply system according to  claim 3 , wherein the power source module includes a plug. 
     
     
         6 . The domestic hot water supply system according to  claim 1 , wherein the temperature sensor further comprises a temperature display. 
     
     
         7 . The domestic hot water supply system according to  claim 1 , wherein the check valve is a solenoid valve. 
     
     
         8 . The domestic hot water supply system according to  claim 1 , wherein the water main is connected to the cold water pipe and a cold water inlet of the water heater through a three-way pipe. 
     
     
         9 . The domestic hot water supply system according to  claim 8 , wherein two valves are disposed respectively at downstream positions of the three-way pipe connected to the cold water pipe and the cold water inlet of the water heater.