CN2884024Y

CN2884024Y - Circulating water-saving return water device for water heater

Info

Publication number: CN2884024Y
Application number: CN200620110153.2U
Authority: CN
Inventors: 朱子义
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-17
Filing date: 2006-03-17
Publication date: 2007-03-28
Anticipated expiration: 2016-03-17

Abstract

The utility model claims to protect a circulating water-saving return water device for a water heater, which is mainly composed of an H-shaped pipe and installed between the ordinary water heater and the hot and cold water pipes of the faucet. The H-shaped pipe is equipped with three solenoid valves and a temperature control valve. Sensors, two solenoid valves are installed at the two water outlet ends of the H-shaped pipe, the other solenoid valve is installed on the connecting horizontal pipe in the middle of the H-shaped pipe, and the temperature sensor is installed at any position of the H-shaped pipe, on the connecting horizontal pipe A micro water pump is also installed, and the electromagnetic valve, micro water pump and temperature sensor are connected with the controller through the control line. The utility model can return the cold water remaining in the hot water pipe before each heating of the water heater to the water heater for heating through the reflux device, and start to discharge water only when the water temperature reaches a certain temperature, so as to achieve the purpose of energy saving and water saving. It also saves the user's waiting time.

Description

The circulating water-saving type water recovery apparatus of water heater

Technical field

The utility model belongs to the domestic electric appliance technology, relates to the improvement to water heater in the family.

Background technology

At present, all can there be the phenomenon of certain waste water in use in general pot-type boiler, because development along with real estate, resident's floor space is increasing now, building structure is tending towards diversification, the installation site of water heater often is a problem of headache, to consider safety problem (gas heater can not be installed in indoor) on the one hand, on the other hand, the toilet, house that has is distant from the position that water heater can be installed, and like this, just causes between water heater and the depotition cock apart from too far away, in order to wait for that water heater goes out hot water, that part of cold water of water pipe that often is arranged between water heater and depotition cock has been wasted with regard to flowing out in vain.For overlapping the room many places hot water tap's situation is arranged, or in the winter of cold, it is very serious that this wasting phenomenon just seems.Particularly on the deficient relatively north of freshwater resources and some islands or car, ship, aircraft, how to avoid such waste just to seem very urgent.And go out hot water and need wait for the regular hour, also wasted user's plenty of time.

Summary of the invention

The purpose of this utility model is the problem at the prior art existence, a kind of circulating water-saving type water recovery apparatus of water heater is provided, the mode that adopts the water source to reflux realizes the purpose of economizing on water, adopt micro pump to make the flowing velocity of water very fast simultaneously, thereby make user's stand-by period shorten many than before.

The circulating water-saving type water recovery apparatus of the water heater that the utility model proposes, based on a H type pipe, be contained between the hot water pipe of common water heater and tap, three magnetic valves and a temperature sensor are installed on the H type pipe, wherein two magnetic valves are installed in two water sides of H type pipe, another magnetic valve is installed on the middle connection transverse tube of H type pipe, and temperature sensor is installed in the optional position of H type pipe, and magnetic valve links to each other with controller by control line with temperature sensor.When opening the hot-water line tap, controller obtains herein water temperature by temperature sensor.When temperature does not reach when requiring, open the magnetic valve that is positioned on the middle connection transverse tube of H type pipe, two magnetic valves of closing two water sides that are installed in H type pipe, water circulates between H type pipe and water heater, constantly heated, the tap place does not have water to flow out; After temperature sensor detects temperature and reaches requirement, close the magnetic valve on the transverse tube, open water outlet, two magnetic valves of end, hot water promptly flows out, and like this, has just avoided the cold water of leading portion to be wasted.

In order to make water form the loop between H type pipe and common water heater, flowing velocity is very fast, shortens user's stand-by period, on the connection transverse tube in the middle of the H type pipe micro pump is installed also, and micro pump connects controller by control line.

Advantage of the present utility model is as follows:

1, the utility model can flow back into the former that part of cold water that remain in the hot-water line of the each heating of water heater in the water heater by reflux and heat, when water temperature reaches uniform temperature, water outlet eloquence begins water outlet, thereby reach the purpose of energy-saving and water-saving, save water resource, reduced user's water rate spending.

2, the time by using micro pump also to save the user.

Description of drawings

Fig. 1 is a structure chart of the present utility model;

Fig. 2, Fig. 3 be utility model the circuit theory diagrams of two kinds of embodiments of controller.

The specific embodiment

As shown in Figure 1, this water recovery apparatus is to be contained in terminal tap 4 front ends that existing water heater 3 goes out hot water.The main body of water recovery apparatus is a H type pipe 1, three magnetic valve A, B, C, a micro pump D and a temperature sensor E are installed on the H type pipe, wherein two magnetic valve A, B are installed in two water sides of H type pipe, another magnetic valve C is installed in middle being connected on the transverse tube 2 of H type pipe with micro pump D, temperature sensor E is installed in the optional position of H type pipe, and magnetic valve, micro pump and temperature sensor link to each other with controller by control line.

Referring to Fig. 2 and Fig. 3, controller is made of power supply, control circuit.Wherein three magnetic valve A, B, C are connected with the output of operational amplifier.The output voltage of temperature sensor E and the reference voltage of setting are by operational amplifier relatively.Relatively back operational amplifier output HIGH voltage or low-voltage are controlled the opening of magnetic valve A, B, C, closure.

When concrete the connection, can adopt:

1. temperature sensor E adopts the temperature sensor that raises with the temperature boosted output voltages, and magnetic valve A, B adopt normal-open electromagnetic valve, and magnetic valve C adopts the closed type magnetic valve, and circuit connects the connected mode that adopts Fig. 2.

2. temperature sensor E adopts with the temperature boosted output voltages and rises low temperature sensor, and magnetic valve A, B adopt the closed type magnetic valve, and magnetic valve C adopts normal-open electromagnetic valve, and circuit connects the connected mode that adopts Fig. 2.

3. temperature sensor E adopts the temperature sensor that raises with the temperature boosted output voltages, and magnetic valve A, B adopt normal-open electromagnetic valve, and magnetic valve C adopts the closed type magnetic valve, and circuit connects the connected mode that adopts Fig. 3.

4. temperature sensor E adopts with the temperature boosted output voltages and rises low temperature sensor, and magnetic valve A, B adopt the closed type magnetic valve, and magnetic valve C adopts normal-open electromagnetic valve, and circuit connects the connected mode that adopts Fig. 3.

If temperature sensor E adopts the temperature sensor that raises with the temperature boosted output voltages, magnetic valve A, B adopt normal-open electromagnetic valve, and magnetic valve C adopts the closed type magnetic valve, and circuit connects the connected mode that adopts Fig. 2.When water heater 3 is started working, magnetic valve A, B closes, C opens, the not water outlet earlier of depotition cock 4 ends, the micro pump D of water heater end begins rotation, water in hot-water line and the cold water pipe forms a mobile water loop, water begins between H type pipe 1 and the water heater 3 to circulate, the water that is circulating heats through water heater 3, water temperature constantly raises, and when cooling-water temperature sensor E sensed water in the circulation and is heated to certain temperature, it will signal to the controller of water heater, controller can allow magnetic valve A and B open then, and magnetic valve C, micro pump D closes, and stops the water circulation, and depotition cock 3 just can directly go out hot water then, so just avoid slatterning that part of cold water that remains in the flow pipe, reached the purpose of water saving.Wherein depotition cock 4 also is a water temperature by-pass valve control, regulates water temperature by the ratio of regulating hot water, cold water.

Claims

1. The circulating water-saving return water device of the water heater is characterized in that: the return water device is mainly composed of an H-shaped pipe, which is installed between the ordinary water heater and the hot and cold water pipes of the faucet. The H-shaped pipe is equipped with three solenoid valves and One temperature sensor, two solenoid valves are installed at the two water outlet ends of the H-shaped pipe, the other solenoid valve is installed on the connecting horizontal pipe in the middle of the H-shaped pipe, the temperature sensor is installed at any position of the H-shaped pipe, the solenoid valve and The temperature sensor is connected with the controller through the control line.

2. The water return device according to claim 1, characterized in that: a micro water pump is installed on the connecting horizontal pipe in the middle of the H-shaped pipe, and the micro water pump is connected to the controller through the control line.

3. The water return device according to claim 1, characterized in that: the controller is composed of a power supply and a control circuit, wherein the three solenoid valves A, B, and C are connected to the output terminals of the operational amplifier in the control circuit The output voltage of the temperature sensor E is connected to an input terminal of the operational amplifier, and compared with the set reference voltage through the operational amplifier, after comparison, the output terminal of the operational amplifier outputs high voltage or low voltage to control the solenoid valves A, B, and C Open, close.