CN204006704U - A kind of water-saving control device - Google Patents

Abstract

The utility model relates to a water-saving control device. When hot water needs to be released, the switch on the faucet is started to connect the control circuit, and the temperature control sensor detects a certain temperature value. When the temperature is lower than the set value, the control circuit outputs a high voltage. Level, start the solenoid valve and water pump, the cold water in the third pipeline flows into the water heater through the solenoid valve and the second pipeline; when the temperature is higher than or equal to the set value, the control circuit outputs low level, and the solenoid valve and water pump are closed , the hot water in the third pipeline flows into the faucet through the electromagnetic valve and the fourth pipeline, and then flows out. The utility model avoids the direct discharge of cold water when the faucet is just opened, thereby avoiding the waste of fresh water resources and saving water resources.

Description

A water-saving control device

technical field

The utility model relates to a water-saving control device, in particular to a device capable of realizing that when the water tap is turned on, cold water does not flow out from the water tap, but flows into the water heater for circulation. Water, a water-saving control device that avoids the waste of fresh water resources.

Background technique

Statistics show that my country is a country with severe drought and water shortage. The per capita fresh water resources are only 1/4 of the world's average level, ranking 110th in the world, and it is one of the countries with the poorest per capita water resources in the world. The per capita available water resources are only 900 cubic meters, and the distribution is extremely uneven. At the end of the 20th century, more than 400 of the more than 600 cities across the country suffered from insufficient water supply, of which 110 were seriously short of water, and the total amount of water shortage in cities across the country was 6 billion cubic meters. According to monitoring, groundwater in most cities is polluted to a certain extent, and the trend is getting worse year by year. The increasingly serious water pollution not only reduces the use function of water bodies, further exacerbates the contradiction of water shortage, but also seriously threatens the drinking water safety and health of urban residents. In order to alleviate the severe water situation, it is necessary to save water through multiple channels and create a water-saving society.

At present, most families, hotels, school dormitories and other places use electric water heaters or gas water heaters. When hot water is needed, the cold water will be put on for a while when the tap is turned on, and then the hot water will come out. Turn off the tap when the hot water is used up. After a while and then turn on the faucet, the cold water still comes out first, and then the hot water. Every time it is used, it is cycled like this. In most cases, the cold water will be discharged directly, so that the whole society will waste a lot of fresh water resources. Therefore, a high-power instant water faucet has also appeared, but because the power of the heater is relatively large, and it is combined with the faucet, there is a potential safety hazard of leakage when the water is released after using for a period of time, and it has not been popularized and applied on a large scale. .

For this reason, we have developed a method that can realize that when the faucet is turned on, cold water will not flow out from the faucet, but will flow into the water heater for circulation. When the water is hot, hot water will flow directly and automatically from the faucet, avoiding the loss of fresh water resources. Wasteful water saving controls.

Utility model content

The technical problem mainly solved by the utility model is to provide a method that can realize that when the faucet is turned on, the cold water will not flow out from the faucet, but will flow into the water heater for circulation. A water-saving control device that reduces the waste of fresh water resources.

In order to solve the above technical problems, a technical solution adopted by the utility model is: a water-saving control device, including a water heater, a faucet, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth Pipeline, electromagnetic valve, control circuit, power supply; the first pipeline is connected with the water inlet of the water heater; one end of the third pipeline is connected with the water outlet of the water heater, and the other end is connected with the electromagnetic valve; the second One end of the pipeline is connected to the first pipeline, and the other end is connected to the solenoid valve; one end of the fourth pipeline is connected to the solenoid valve, and the other end is connected to the hot water interface of the faucet; the fifth pipeline is connected to the tap water of the faucet. The interface is connected; the second pipeline is provided with a first one-way valve and a water pump; the first pipeline is provided with a second one-way valve; the third pipeline is provided with a temperature sensor, and the temperature sensor is close to the electromagnetic valve, and connected with the control circuit; the water pump is used to compensate the pressure loss of the water through the pipeline, and flows into the water heater in one direction through the first one-way valve; the first one-way valve, the water pump, the second one-way valve, the water heater And the first pipeline arranged between the second one-way valve and the water heater, so that the water pressurized by the water pump flows into the water heater in one direction through the first one-way valve, and when the water pump is not started, the first one-way valve acts as an off Cut off the first pipeline to prevent the tap water from the first pipeline from flowing back into the water pump; the second one-way valve is connected to the water heater through the first pipeline, and the second one-way valve makes the tap water only flow into the water heater in one direction. When the water pump is started, the second one-way valve acts to shut off the cold water in the second pipeline from flowing into the tap water, but can only flow into the water heater; the power supply is connected with the control circuit to provide electric energy; the control circuit is connected with the faucet The switch, temperature sensor, solenoid valve and water pump are connected; when hot water needs to be released, the start switch is connected to the control circuit, and the temperature control sensor detects a certain temperature value. When the temperature is lower than the set value, the control circuit outputs a high level. Start the solenoid valve and the water pump, and the cold water in the third pipeline flows into the water heater through the solenoid valve and the second pipeline; when the temperature is higher than or equal to the set value, the control circuit outputs a low level, and the solenoid valve and the water pump are closed, and the second The hot water in the three pipelines flows into the faucet through the electromagnetic valve and the fourth pipeline, and then flows out.

Preferably, the switch is connected to the control circuit. When the faucet needs to release hot water, the mechanical action of the faucet touches the switch to connect the control circuit. When the faucet is closed, the switch disconnects the control circuit accordingly, and the control circuit stops working. , the solenoid valve connects the second pipeline with the third pipeline.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

The water-saving control device described in the utility model is provided with a control circuit, a temperature sensor, a one-way valve, and a water pump; when the hot water tap is turned on, the cold water at the beginning will not flow out from the tap, but will flow into the water heater for circulation. When the water is hot, hot water flows directly and automatically from the faucet, avoiding the direct discharge of cold water at the beginning, thereby avoiding the waste of fresh water resources and saving water resources.

Description of drawings

Fig. 1 is the functional block diagram of the preferred embodiment of the water-saving control device described in the utility model;

Among them: 1. Water heater; 2. Temperature sensor; 3. Solenoid valve; 4. Water pump; 5. First check valve; 6. Second check valve; 7. Power supply; 8. Control circuit; 9. Switch; 10 , the faucet; 11, the first pipeline; 12, the second pipeline; 13, the third pipeline; 14, the fourth pipeline; 15, the fifth pipeline.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly .

Accompanying drawing 1 is the water-saving control device described in the utility model, comprising:

A water heater 1, the water heater 1 may be an electric water heater, or a burner gas water heater, which provides hot water for the faucet 10;

A temperature sensor 2, the temperature sensor 2 is arranged on the third pipeline 13 and close to the solenoid valve 3, and is connected to the control circuit 8, and the detected temperature signal is input to the control circuit 8 for processing, when the temperature sensor 2 is placed in the pipeline When the temperature reaches or fails to reach the set value, the control circuit 8 outputs high and low levels or low levels respectively to control the solenoid valve 3 and the water pump 4;

The solenoid valve 3 is connected to the control circuit 8, and the control circuit 8 outputs a switching signal to control the solenoid valve 3; when the control circuit 8 outputs a high level, the solenoid valve 3 connects the second pipeline 12 to the third pipeline 13; When the control circuit 8 outputs a low level, the solenoid valve 3 connects the third pipeline 13 with the fourth pipeline 14;

The water pump 4 is connected to the electromagnetic valve 3 and the first one-way valve 5 through the second pipeline 12. The water pump 4 is used to compensate the pressure loss of the water through the pipeline, and flows into the water heater 1 through the first one-way valve 5 in one direction. ;

The first one-way valve 5, the water pump 4, the second one-way valve 6, the water heater 1, and the first pipeline 11 arranged between the second one-way valve 6 and the water heater 1 allow the water pressurized by the water pump 4 to pass through the first one-way valve. A one-way valve 5 flows into the water heater 1 in one direction, and at the same time, when the water pump 4 is not started, the first one-way valve 5 functions to shut off the first pipeline, so as to prevent the tap water of the first pipeline from flowing back into the water pump 4;

A second one-way valve 6, the second one-way valve 6 is connected with the water heater 1 through the first pipeline 11, the second one-way valve 6 allows tap water to flow into the water heater 1 only in one direction, when the water pump 4 starts, The second one-way valve 6 acts to shut off the cold water of the second pipeline 12 from flowing into the tap water, and can only flow into the water heater 1;

A power supply 7, the power supply 7 is connected with the control circuit 8 to provide electric energy;

Described control circuit 8 is connected with switch 9, temperature sensor 2, electromagnetic valve 3 and water pump 4; At the set value, the control circuit 8 outputs a high level, starts the solenoid valve 3 and the water pump 4, and the cold water in the third pipeline 13 flows into the water heater 1 through the solenoid valve 3 and the second pipeline 12; when the temperature is higher than or Equal to the set value, the control circuit 8 outputs a low level, the solenoid valve 3 and the water pump 4 are closed, the hot water in the third pipeline 13 flows into the faucet 10 through the solenoid valve 3 and the fourth pipeline 14, and then flows out.

The switch 9 is connected to the control circuit 8. When the faucet 10 needs to release hot water, the mechanical action of the faucet 10 triggers the switch 9 to connect the control circuit 8. When the faucet 10 is closed, the switch 9 disconnects the control circuit 8 accordingly. The control circuit 8 stops working, and at this moment, the solenoid valve 3 connects the second pipeline 12 and the third pipeline 13 .

The faucet 10 contains two interfaces, a hot water interface, a tap water interface and a start switch 9 that needs to release hot water. The hot water interface is connected to the electromagnetic valve 3 through the fourth pipeline 14, and the fourth pipeline 14 The shorter the better to reduce heat loss. The cold water interface links to each other with running water, and its pipeline is the fifth pipeline 15.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

The water-saving control device described in the utility model is provided with a control circuit, a temperature sensor, a one-way valve, and a water pump; when the hot water tap is turned on, the cold water at the beginning will not flow out from the tap, but will flow into the water heater for circulation. When the water is hot, hot water flows directly and automatically from the faucet, avoiding the direct discharge of cold water at the beginning, thereby avoiding the waste of fresh water resources and saving water resources.

The above are only specific application examples of the utility model, and do not constitute any limitation to the protection scope of the utility model. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the utility model.

Claims (2)

1. A water-saving control device, characterized in that it includes a water heater, a faucet, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a solenoid valve, a control circuit, a power supply ; The first pipeline is connected with the water inlet of the water heater; one end of the third pipeline is connected with the water outlet of the water heater, and the other end is connected with the solenoid valve; one end of the second pipeline is connected with the first pipeline , the other end is connected to the solenoid valve; one end of the fourth pipeline is connected to the solenoid valve, and the other end is connected to the hot water connection of the faucet; the fifth pipeline is connected to the tap water connection of the faucet; There are a first one-way valve and a water pump; a second one-way valve is set on the first pipeline; a temperature sensor is set on the third pipeline, and the temperature sensor is close to the solenoid valve and connected to the control circuit; the The water pump is used to compensate the pressure loss of the water through the pipeline, and flows into the water heater in one direction through the first one-way valve; the first one-way valve, the water pump, the second one-way valve, the water heater, and the The first pipeline between them makes the water pressurized by the water pump flow into the water heater in one direction through the first one-way valve. The tap water in the pipeline flows back into the water pump; the second one-way valve is connected to the water heater through the first pipeline, and the second one-way valve makes the tap water only flow into the water heater in one direction. When the water pump starts, the second one-way valve starts The cold water that shuts off the second pipeline flows into the tap water, but can only flow into the water heater; the power supply is connected with the control circuit to provide electric energy; the control circuit is connected with the switch on the faucet, the temperature sensor, the solenoid valve and the water pump Connected; when hot water needs to be released, the start switch is connected to the control circuit, and the temperature control sensor detects a certain temperature value. When the temperature is lower than the set value, the control circuit outputs a high level, starts the solenoid valve and the water pump, and the third pipeline The cold water in the water flows into the water heater through the solenoid valve and the second pipeline; when the temperature is higher than or equal to the set value, the control circuit outputs a low level to turn off the solenoid valve and the water pump, and the hot water in the third pipeline passes through the solenoid valve And the fourth pipeline flows into the faucet, and thus flows out. 2. The water-saving control device according to claim 1, characterized in that: the switch is connected to the control circuit, when the faucet needs to release hot water, the mechanical action of the faucet triggers the switch to connect the control circuit, when the faucet is closed , the switch disconnects the control circuit accordingly, and the control circuit stops working. At this time, the solenoid valve makes the second pipeline and the third pipeline connected.