CN201828030U - Water-saving device of universal energy-saving type tiptronic water heater - Google Patents

Abstract

The utility model relates to a water-saving device for water heaters, which is suitable for all water heaters with too long pipelines connecting the water heaters and terminal hot water use points. The device uses a temperature detector to detect the water temperature, controls the action of the solenoid valve and the water pump, and can automatically recycle and reuse the front-end cold water in the pipeline from the water heater to the terminal hot water use point. Or switch manually, and the water heater will not start repeatedly due to switching of water sources. Moreover, the whole system is in a power-off state when hot water is not used, and can be manually controlled during a power outage; at the same time, the system also has a water storage function that can realize the emergency secondary water supply of the water storage tank when the water is cut off.

Description

Universal energy-saving manual water heater water-saving device

technical field

The utility model relates to a water-saving device for a water heater, which is suitable for all water heaters whose pipelines connecting the water heater and terminal hot water use points are too long.

Background technique

At present, similar water heater water-saving devices are known, which can realize the water-saving function under certain conditions. The water heater water-saving device mentioned in the patent application No. 200710032339.X patent publication No. CN101451769A is a relatively perfect device. But its disadvantages are firstly, the use of three-way thermal valve, although theoretically it can realize the suspended on-off of the waterway through the temperature control point, but there is no actual product at present, and its actual control effect is unknown. Once the thermosensitive valve fails or breaks down, the whole device will fail and affect normal use. Second, the use of a one-way valve. The water supply end of the one-way valve is connected to the water pump, and the water outlet end is connected to the water pipe to the water heater. The one-way valve is also theoretically achievable, but the water from the water pump must be able to enter the water heater smoothly. The pipeline must be such that the outlet pressure of the water pump plus the pressure loss of the one-way valve is not less than the pressure of the tap water pipe. If the water pressure is low or the water is cut off, the water from the water pump will flow back through the water pipe. Third, the switch of the water pump is controlled by the floating ball of the water storage tank. After a small amount of water is collected for the first time, the water pump will start, and it will stop after a short while; even if the float ball is controlled by the stroke and can be connected in a certain water level range, when the float ball reaches the range of the control stroke, and the user does not When needing to continue to use hot water, the water pump will always be in a connected state, which will cause waste of electricity. Fourth, the design of the water storage tank has an air suction space, but there is no overflow port. In the case of a power failure, the water in the water tank cannot be pumped out in time, and self-overflow will occur, thereby soaking the surrounding environment with water.

Contents of the invention

In order to overcome the above shortcomings, the water-saving device of the water heater is easy to operate, easy to install and debug, and does not cause secondary waste of electric energy while saving water. The water heater water-saving device designed by the utility model uses a temperature detector to detect the water temperature, controls the action of the solenoid valve and the water pump, and can automatically recycle and reuse the cold water at the front end of the pipeline from the water heater to the terminal hot water use point. The water source can be automatically or manually switched between the water storage tank and tap water, and the water heater will not be repeatedly started due to the switching of the water source. Moreover, the whole system is in a power-off state when hot water is not used, and can be manually controlled during a power outage; at the same time, the system also has a water storage function that can realize the emergency secondary water supply of the water storage tank when the water is cut off.

The technical scheme that the utility model solves its technical problem adopts is:

It includes two functional modules: the front-end control module of the water tank and the terminal module of the hot water use point.

The front-end control module of the water tank includes an impurity filter, a normally open solenoid valve, a water flow detector, a normally closed solenoid valve, a water pump, a water storage tank, a return pipe, an overflow pipe, a tee joint, a water level detection module, and a control circuit. The impurity filter described in the front control module of the water tank is respectively connected with the tap water pipe and the normally open solenoid valve, the normally open solenoid valve is connected with the water flow detector, the water flow detector is connected with the tee joint, and the tee joint is respectively connected with the water heater and the normally open solenoid valve. The closed solenoid valve is connected, the normally closed solenoid valve is connected with the water pump, the water pump is connected with the water storage tank, and the water storage tank is respectively connected with the return pipe, the drain valve and the overflow pipe; the water flow detector controls the power on and off of the whole module, and the water level control module Control the switch of the water pump, and the control circuit respectively controls the opening and closing of the normally open solenoid valve and the normally closed solenoid valve according to the on and off of the water pump. The control circuit described in the front control module of the water tank includes a power-on delay relay, a No. 1 power-off delay relay, a No. 2 power-off delay relay, an emergency secondary water supply button, and a power supply. After the emergency secondary water supply button in the control circuit module is connected in parallel with the water flow detector, the water level control module and the power supply are connected in series, and after the power-on delay relay, No. 1 power-off delay relay and No. The water level control module is connected to the power supply, the power-on delay relay is connected to the normally open solenoid valve, the No. 1 power-off delay relay is connected to the normally-closed solenoid valve, and the No. 2 power-off delay relay is connected to the water pump. The water flow detector described in the front control module of the water tank includes a detector, a common relay, and a power supply. The detector described in the water flow detector is connected with an ordinary relay, and the ordinary relay controls the on-off of the power supply of the water level detection module. The power supply described in the control circuit and the water flow detector includes a 220V power supply and a 12V power supply. The 220V power supply supplies power to the water level detection module and the water pump, and the 12V power supply supplies power to the relay and the solenoid valve. The water level detection module described in the front control module of the water tank includes No. 1 water level detector, No. 2 water level detector, No. 3 water level detector, water level control module, No. 1 water level detector, No. 2 water level detector and No. 3 water level The detector is connected to the water level control module, as described in the control circuit, the emergency secondary water supply button controls the switching of the No. 2 water level detector and the No. 3 water level detector, and the No. 2 water level detector and the No. 3 water level detector are interlocked. Hot water use point terminal module, including normally open solenoid valve, water flow detector, normally closed solenoid valve, return pipe, No. 1 tee joint, No. 2 tee joint, manual water diversion valve, temperature detector, and control circuit.

In the hot water use point terminal module, the water flow detectors are respectively connected to the outlet end of the water mixing valve and the No. 1 tee joint, and the No. 1 tee joint is respectively connected to the manual water diversion valve and the normally closed solenoid valve, and the manual water diversion valve is connected to the No. 1 tee joint respectively. The normally open solenoid valve is connected to the No. 2 tee joint, and the No. 2 tee joint is respectively connected to the normally closed solenoid valve and the hot water use point. The temperature detector is attached to the No. 1 tee joint; the water flow detector controls the power on and off of the entire module , the control circuit respectively controls the opening and closing of the normally open solenoid valve and the normally closed solenoid valve according to the temperature detector signal. The water flow detector described in the hot water use point terminal module includes a detector, an ordinary relay, and a power supply. The detector described in the water flow detector is connected to the ordinary relay, and the ordinary relay is connected to the temperature detector. After the power-off delay relay and the power-on delay relay are connected in parallel, they are connected in series with the ordinary relay, and the power-off delay relay is connected to the normally closed solenoid valve. The power-on delay relay is connected to the normally open solenoid valve. The power supply described in the control circuit is a 12V power supply, and the 12V power supply supplies power for relays and solenoid valves. The temperature detector described in the hot water point-of-use terminal module consists of a temperature detector and a general relay.

The utility model has the beneficial effects compared with the background technology:

The device can automatically recycle and reuse the front-end cold water in the pipeline from the water heater to the terminal hot water use point. The water source of the water heater inlet pipe can be automatically or manually switched between the water storage tank and tap water, and the water heater will not be repeatedly started due to the switch of the water source. . Moreover, the whole system is in a power-off state when hot water is not used, and can be manually controlled during a power outage; at the same time, the system also has a water storage function that can realize the emergency secondary water supply of the water storage tank when the water is cut off.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a schematic diagram of equipment connection of a universal energy-saving manual integrated water heater water-saving device in the utility model.

Fig. 2 is a schematic diagram of the control circuit of the front control module of the water tank in the utility model.

Fig. 3 is a schematic diagram of the control circuit of the terminal module of the hot water use point in the utility model.

In the figure 1. Tap water, 2. Impurity filter, 3. Normally open solenoid valve, 4. Water flow detector, 5. Tee joint, 6. Water pump, 7. Normally closed solenoid valve, 8. Return pipe, 9. Overflow Water pipe, 10. Water storage tank, No. 11.1 water level detector, No. 12.2 water level detector, No. 13.3 water level detector, 14. Drain valve, 15. Sewer, 16. Hot water use point, 17. Mixing water valve, 18 .Water flow detector, 19. Temperature detector, 20. Manual diverter valve, 21. Normally closed solenoid valve, 22. Normally open solenoid valve, No. 23.1 three-way joint, No. 24.2 three-way joint, 25. Water heater, 26. Emergency secondary water supply button, 27. Power-off delay relay, 28. Power-on delay relay, 29. Power-off delay relay, 30. Ordinary relay, 31. Ordinary relay, 32. Ordinary relay, 33. Power-off delay Relay, 34. energization delay relay, 35. detector, 36. water level control module, 37. detector.

Detailed ways

In the front control module of the water tank in Fig. 1, the impurity filter (2) is respectively connected with the tap water pipe (1) and the normally open solenoid valve (3), and the normally open solenoid valve (3) is connected with the water flow detector (4), and the water flow detection The device (4) is communicated with the three-way joint (5), and the three-way joint (5) is communicated with the water heater (25) and the normally closed electromagnetic valve (7) respectively, and the normally closed electromagnetic valve (7) is communicated with the water pump (6), and the water pump (6) communicate with the water storage tank (10), and the water storage tank (10) communicates with the return pipe (8), the drain valve (14) and the overflow pipe (9) respectively; in the terminal module of the hot water use point, the water flow The detector points (18) are respectively connected to the water outlet of the water mixing valve (17) and the No. 1 tee joint (23), and the No. 1 tee joint (23) is respectively connected to the manual water diversion valve (20) and the normally closed solenoid valve (21 ), the manual diverter valve (20) is connected to the normally open solenoid valve (22) and the No. 2 tee joint (24), and the No. 2 tee joint (24) is respectively connected to the normally closed solenoid valve (21) and the hot water use (16), temperature probe (19) is pasted on No. 1 tee joint (23) place.

In Fig. 2, after the emergency secondary water supply button (26) is connected in parallel with the water flow detector (4), the water level control module (36) and the power supply are connected in series, the power-on delay relay (28), and No. 1 power-off delay relay (27 ) and No. 2 power-off delay relay (29) in parallel, the water level control module (36) and the power supply are connected in series, the power-on delay relay (28) is connected with the normally open solenoid valve (3), and No. 1 power-off delay relay ( 27) Connect with normally closed solenoid valve (7), No. 2 power-off delay relay (29) is connected with water pump (6), No. 1 water level detector (11), No. 2 water level detector (12) and No. 3 water level The detector (13) is connected to the water level control module (36), the emergency secondary water supply button (26) controls the switching of the No. 2 water level detector (12) and the No. 3 water level detector (13), and the No. 2 water level detector (12) It is interlockingly connected with No. 3 water level detectors (13).

In Fig. 3, the detector (37) of the water flow detector (18) is connected with the ordinary relay (32), and the normally open solenoid valve and the normally closed solenoid valve are connected in parallel with the ordinary relay (32) and the ordinary relay (31) respectively in series , the power-on delay relay (34) is connected with the normally open solenoid valve (22), and the power-off delay relay (33) is connected with the normally closed solenoid valve (21).

The manual water diversion valve (20) is initially connected to the No. 1 tee joint (23) and the normally open solenoid valve (22).

When normal use is not powered off, and the water is not cut off, open the water mixing valve (17) to use hot water, the water flow detector (4) detects the water flow, and the control circuit of the front control module of the water tank is energized; the water flow detector (18) detects the water flow, The hot water use point terminal module control circuit is energized; the water heater detects water flow, and the water heater starts. Tap water (1) flows through the impurity filter (2), flows through the normally open solenoid valve (3), flows through the water flow detector (4), flows through the water heater (25), flows through the water outlet of the mixing valve (17), Flow through the water flow detector (18), flow through the manual diverter valve (20), flow through the normally open solenoid valve (22), flow through the return pipe (8), and flow into the water storage tank (10); when the temperature detector ( 19) When it is detected that hot water reaches No. 1 tee joint (23), the normally closed solenoid valve (21) controlled by the power-off delay relay (33) opens immediately, and the normally open solenoid valve controlled by the power-on delay relay (34) The valve (22) is closed in a delayed manner, so that hot water flows through the normally closed solenoid valve (21) and reaches the hot water use point (16); when the water storage tank (10) reaches the No. 2 water level detector (12) , the water pump (6) controlled by No. 2 power-off delay relay (29) starts immediately, and the normally closed electromagnetic valve (7) controlled by No. ) controlled normally open solenoid valve (3) is delayed to close, so as to realize the smooth and continuous switching of the water source from tap water to the water storage tank, and the water heater (25) will not start repeatedly; when the water storage capacity of the water storage tank (10) drops to 1 When the No. 1 water level detector (11), the water pump (6) controlled by the No. 2 power-off delay relay (29) delays closing, the normally closed solenoid valve (7) controlled by the No. 1 power-off delay relay (27) delays When closed, the normally open solenoid valve (3) controlled by the energization delay relay (28) is opened immediately to realize the smooth and continuous switching of the water source from tap water to the water storage tank, and the water heater (25) will not start repeatedly; close the water mixing valve ( 17) Stop using hot water and cut off power to the whole unit.

When power failure, open water mixing valve (17) and use hot water, water heater detects current, and water heater starts. Tap water (1) flows through the impurity filter (2), flows through the normally open solenoid valve (3), flows through the water flow detector (4), flows through the water heater (25), flows through the water outlet of the mixing valve (17), Flow through the water flow detector (18), flow through the manual diverter valve (20), flow through the normally open solenoid valve (22), flow through the return pipe (8), and flow into the water storage tank (10); When the hot water passes through the water mixing valve (17), use the manual diverter valve (20) to switch the water flow so that the hot water passes through the No. 2 three-way joint (24) and flows to the hot water use point (16); when the water storage tank ( 10) is full, water will flow into the sewer (15) through the overflow pipe (9).

When the water is cut off, open the mixing valve (17) to use hot water, then start the emergency secondary water supply button (26), and the control circuit of the front control module of the water tank is energized; the water flow detector (18) detects the water flow, and the terminal of the hot water use point The module control circuit is energized; the water heater detects water flow, and the water heater starts; the No. 2 water level detector (12) of the water tank connected to the water level control module (36) is switched to the No. 3 water level detector (13); No. 2 power-off delay relay (29 ) controlled water pump (6) starts immediately, the normally closed solenoid valve (7) controlled by No. 1 power-off delay relay (27) opens immediately, and the normally open solenoid valve (3) Timer off. The water flows from the water storage tank (10), flows through the water pump (6), flows through the normally closed solenoid valve (7), flows through the water heater (25), flows through the water outlet of the water mixing valve (17), and flows through the water flow detector ( 18), flow through the manual diverter valve (20), flow through the normally open solenoid valve (22), flow through the return pipe (8), and flow into the water storage tank (10); when the temperature detector (19) detects hot water When the No. 1 tee joint (23) is reached, the normally closed solenoid valve (21) controlled by the power-off delay relay (33) opens immediately, and the normally open solenoid valve (22) controlled by the power-on delay relay (34) delays Close, so that hot water flows through the normally closed solenoid valve (21) to reach the hot water use point (16); when the water storage capacity of the water storage tank (10) drops to the No. The water pump (6) controlled by the electric delay relay (29) delays closing, and the normally closed electromagnetic valve (7) controlled by the No. 1 power-off delay relay (27) delays closing, and is controlled by the power-on delay relay (28) The normally open solenoid valve (3) is opened immediately; the emergency secondary water supply button (26) is closed, and the whole device is powered off.

When the water is cut off and the power is cut off, the drain valve (14) is opened, and the current flows out from the water storage tank (10) to realize emergency water use.

Claims (2)

1. A manual or automatic water heater water-saving device, characterized in that the front control module (39) of the water tank includes an impurity filter (2), a normally open solenoid valve (3), a water flow detector (4), a normally closed solenoid Valve (7), water pump (6), water storage tank (10), return pipe (8), overflow pipe (9), tee joint (5), water level control module (36), control circuit of the front control module of the water tank, The impurity filter (2) described in the control module (39) at the front end of the water tank is communicated with tap water (1) and the normally open electromagnetic valve (3) respectively, and the normally open electromagnetic valve (3) is communicated with the water flow detector (4), and the water flow The detector (4) is communicated with the three-way joint (5), the three-way joint (5) is communicated with the water heater (25) and the normally closed electromagnetic valve (7) respectively, and the normally closed electromagnetic valve (7) is communicated with the water pump (6), The water pump (6) is communicated with the water storage tank (10), and the water storage tank (10) is respectively communicated with the water return pipe (8), the drain valve (14) and the overflow pipe (9). Describe the control circuit of the front control module of the water tank, including No. 1 power-off delay relay (27), power-on delay relay (28), No. 2 power-off delay relay (29), normally closed solenoid valve (7), normally open solenoid valve Valve (3), water pump (6), water flow detector (4), water level control module (36), No. 1 water level detector (11), No. 2 water level detector (12), No. 3 water level detector (13) , emergency secondary water supply button (26), No. 1 water level detector (11), No. 2 water level detector (12) and No. 3 water level detector (13) described in the water tank front control module control circuit are connected to the water level control module ( 36) The signal input terminal collects the water level signal. After the emergency secondary water supply button (26) is connected in parallel with the water flow detector (4), the water level control module (36) is connected in series, and the emergency secondary water supply button (26) is connected to No. 2 The water level detector (12), the emergency secondary water supply button (26) is connected to No. 3 water level detector (13), power-on delay relay (28), No. 1 power-off delay relay (27) and No. 2 power-off After the delay relay (29) is connected in parallel, the water level control module (36) is connected in series, the power-on delay relay (28) is connected with the normally open solenoid valve (3), and No. 1 power-off delay relay (27) is connected with the normally closed solenoid valve ( 7) connection, No. 2 power-off delay relay (29) is connected with water pump (6). 2. A manual or automatic water heater water-saving device according to claim 1, characterized in that it also includes the hot water use point terminal module (38), including a normally open solenoid valve (22), a water flow detector (18 ), normally closed solenoid valve (21), return pipe (8), No. 1 tee joint (23), No. 2 tee joint (24), manual diverter valve (20), temperature detector (19), heat The control circuit of the water use point terminal module is connected to the tap water (1) and the water heater (25) at the water inlet end of the water mixing valve (17) of the hot water use point terminal module (38), respectively, and the water flow detector (18) is connected to the water flow detector (18) respectively. The water outlet of the water mixing valve (17) is connected to the No. 1 three-way joint (23), and the No. 1 three-way joint (23) is respectively connected to the manual water diversion valve (20) and the normally closed solenoid valve (21), and the manual water diversion valve (20 ) are respectively connected to the normally open solenoid valve (22) and the No. 2 tee joint (24), and the No. 2 tee joint (24) is respectively connected to the normally closed solenoid valve (21) and the hot water use point (16), and the temperature detector ( 19) Pasted on the No. 1 tee joint (23), the control circuit of the hot water use point terminal module in the hot water use point terminal module (38) includes a water flow detector (18), a temperature detector (19), Power-off delay relay (33), power-on delay relay (34), normally closed solenoid valve (21), normally open solenoid valve (22), water flow detector (18) described in hot water use point terminal module (38) ) temperature detector (19) in series, the power-off delay relay (33) and the power-on delay relay (34) are connected in parallel and the temperature detector (19) is connected in series, and the power-off delay relay (33) is connected to the normally closed solenoid valve (21 ), the output end of the energization delay relay (34) is connected to the normally open solenoid valve (22).

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