CN202787407U - Universal water-saving system - Google Patents

Abstract

The utility model discloses a universal water-saving system used for conveying water discharged by washing equipment to water utilization equipment. The universal water-saving system comprises a water storage tank located below the washing equipment, wherein the water storage tank is communicated with a water outlet of the washing equipment; the water storage tank is communicated with a pressurization tank through a water pump and a second check valve; and the pressurization tank is communicated with the water utilization equipment. The universal water-saving system has the advantage of lower requirement on the height of the water utilization equipment, thereby being small in occupied space and stronger in universality.

Description

Universal Water Saving System

technical field

The invention relates to the technical field of water-saving systems, in particular to a universal water-saving system.

Background technique

Reuse of wastewater discharged from washing equipment such as wash basins is an important way to save water. Generally, water-saving systems utilizing this type of waste water are mostly provided with water storage tanks under the washing equipment, and at the same time, toilets and other water-using equipment with lower water quality requirements are placed below the water storage tanks. In this way, the waste water flows to the water use equipment through the water storage tank, so as to achieve the purpose of waste water reuse. Among them, the water storage tank solves the contradiction that the water consumption of the water equipment and the drainage of the washing equipment are not synchronized. Its disadvantages are: 1. The height of the water-using equipment must be lower than that of the water storage tank, so that the water-saving system takes up a lot of space and is not universal. 2. When the water stored in the water storage tank enters the water use equipment, the pressure is low, and there is a situation that the waste water cannot enter the water use equipment. 3. When there is less water in the water storage tank, there is a situation that the water supply equipment may be cut off and cannot use water. Therefore it is necessary to improve it.

Contents of the invention

Aiming at the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a universal water-saving system, which has the characteristics of lower requirements on the height of water-using equipment, so that the water-saving system occupies less space and has strong versatility. After optimization, it has the characteristics that the waste water enters the water equipment more smoothly, and the water equipment can continue to use water.

In order to achieve the above object, the technical solution adopted by the present invention is: a universal water-saving system, which is used to transport the water discharged from the washing equipment to the water-using equipment, the universal water-saving system includes a water storage tank located under the washing equipment, and The water storage tank is communicated with the drain port of the washing equipment, and the water storage tank is communicated with a booster tank through a water pump and a second check valve, and the booster tank is communicated with the water use equipment.

The general water-saving system includes a PLC, and a pressure sensor is arranged in the booster box, and at the same time, the pressure sensor and the water pump are connected to the PLC signal.

When the pressure sensor detects that the pressure in the booster tank is P≤1MPa, the PLC controls the water pump to turn on, and when P=3MPa, the PLC controls the water pump to turn off.

A water level sensor is provided in the water storage tank, and the water storage tank is connected to the tap water pipe through the first normally closed electromagnetic valve, and at the same time, the water level sensor and the first normally closed electromagnetic valve are connected to the PLC signal.

When the water level sensor senses that the water level in the water storage tank is not higher than the height of the water inlet of the connecting pipe between the water storage tank and the water pump, the PLC controls the opening of the first normally closed solenoid valve until the water level in the water storage tank reaches the water level of the water storage tank. When the water inlet of the communication pipe between the water pump and the water pump is 100mm above, the PLC controls the first normally closed electromagnetic valve to close.

A check valve is provided between the water equipment and the booster tank, and at the same time, the water equipment is connected to the water pipe through a second normally closed electromagnetic valve, and the second normally closed electromagnetic valve is opened when the power is turned off.

The water storage tank is provided with an overflow port.

After adopting the above-mentioned structure, the advantages of the present invention compared with the prior art are: 1. The requirement for the height of the water-water equipment is relatively low, so the water-saving system takes up little space and has strong versatility. A pressurized tank is provided between the water storage tank and the water-using equipment of the universal water-saving system of the present invention, and the pressurized tank has a certain pressure inside under the action of continuous water injection by the water pump. In this way, there is no necessary relationship between the location of the water storage tank and the location of the water-using equipment, so that the universal water-saving system is still applicable even in a bathroom with a small area. 2. The waste water enters the water equipment more smoothly. The pressure of the waste water in the pressurized tank of the universal water-saving system of the present invention is kept between 1MPa and 3MPa, so that the waste water in the pressurized tank can smoothly enter the water-using equipment. 3. Water equipment can continue to use water. When the water level in the water storage tank is low, tap water can be used to supplement; when the power is cut off and the water pressure in the pressurized tank cannot meet the needs of the water equipment, the water equipment can directly use tap water. In this way, the water-using equipment can continue to use water, and there will be no water cut-off.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further described:

Fig. 1 is a schematic diagram of the working principle of an embodiment of the present invention.

In the figure: 10, washing equipment; 20, water storage tank, 21, water level sensor, 22, overflow port; 30, water pump, 31, second check valve; 40, booster tank, 41, pressure sensor; 50 , water equipment; 60, PLC; 70, first normally closed solenoid valve; 80, second normally closed solenoid valve, 81, third check valve; 90, check valve; 100, tap water pipe; 200, sewage valve.

Detailed ways

The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

The embodiment is shown in Fig. 1: a universal water-saving system, which is used to transport the waste water discharged from washing equipment 10 such as washbasins to toilets and other water-using equipment 50 that do not require high water quality for reuse. The universal water-saving system includes a water storage tank 20 located below the washing equipment 10 , and the water storage tank 20 communicates with the drain of the washing equipment 10 . That is, the waste water generated by the washing apparatus 10 flows into the water storage tank 20 through the drain port. The water storage tank 20 communicates with a booster tank 40 through a water pump 30 and a second check valve 31 , and the booster tank 40 is communicated with a water device 50 . Of course, the water pump 30 and the second check valve 31 are connected in series. In this way, the waste water in the water storage tank 20 is pressurized by the water pump 30 and enters the booster tank 40 , and then the pressurized waste water can smoothly enter the water use equipment 50 . Since the water in the pressurized tank 40 has pressure, the water equipment 50 does not necessarily have to be lower than the height of the water storage tank 20 . That is, even in a toilet with a small area, the universal water-saving system is still applicable.

Further, the universal water-saving system includes a PLC 60 , and a pressure sensor 41 is arranged in the booster box 40 . At the same time, both the pressure sensor 41 and the water pump 30 are connected to the PLC 60 for signals. In this way, the pressure sensor 41 detects the water pressure in the booster tank 40, and when the water pressure is too low to meet the setting requirements, the PLC 60 can start the water pump 30 in time. Optimally, when the pressure sensor 41 senses the pressure P≤1MPa in the booster tank 40, the PLC60 controls the water pump 30 to turn on, until P=3MPa, the PLC60 controls the water pump 30 to turn off. That is, the water pressure in the booster tank 40 is kept between 1-3 MPa, so that the water flow can enter the water equipment 50 smoothly.

To continue optimization, the water storage tank 20 is provided with a water level sensor 21 , and the water storage tank 20 is connected to the tap water pipe 100 through the first normally closed solenoid valve 70 . Wherein, the first normally closed solenoid valve 70 is a normally closed solenoid valve that opens after being energized. At the same time, both the water level sensor 21 and the first normally closed electromagnetic valve 70 are connected to the PLC 60 for signals. In this way, when the waste water produced by the washing equipment 10 is so small that the water level in the water storage tank 20 is too low, and the water pump 30 cannot pump water into the booster tank 40, the water level sensor 21 transmits a signal that the water level is too low to the PLC60, and then the PLC60 according to It is pre-set to send an open signal to the first electromagnetic valve 70 , so that the first electromagnetic valve 70 is opened, and the tap water in the water pipe 100 can directly enter the water storage tank 20 to replenish water for it. That is, when the water level sensor 21 senses that the water level in the water storage tank 20 is not higher than the height of the water inlet of the communication pipe between the water storage tank 20 and the water pump 30 , the PLC 60 controls the first normally closed solenoid valve 70 to open. At the same time, when the water level reaches a certain level, the water level sensor 21 sends a signal to the PLC 60 that the water storage is sufficient, and the PLC 60 closes the first normally closed solenoid valve 70 according to the setting. For example, when the water level sensor 21 detects that the water level in the water storage tank 20 reaches 100 mm above the water inlet of the communication pipe between the water storage tank 20 and the water pump 30, the PLC 60 controls the first normally closed solenoid valve 70 to close. Of course, when the water level in the water storage tank 20 is too low, the PLC 70 can also be set to prevent the water pump 30 from working, so as to prevent the water pump 30 from burning out.

In order to avoid the situation that the water equipment 50 cannot use water during a power failure, a check valve 90 is provided between the water equipment 50 and the booster tank 40, and at the same time, the water equipment 50 is connected to the tap water pipe 100 through the second normally closed electromagnetic valve 80, And the second normally closed solenoid valve 80 is opened when the power is cut off. That is, when the power failure state, the second normally closed solenoid valve 80 is opened, if the pressure in the booster tank 40 is not enough to enter the water equipment 50, then the water in the water pipe 100 can directly enter the water equipment 50, avoiding the use of water. A situation where the device 50 is unusable due to lack of water. At this time, a third check valve 81 may also be provided between the second normally closed solenoid valve 80 and the water use equipment 50 to prevent damage to the second normally closed solenoid valve 80 and to prevent waste water from entering the water pipe 100 .

Certainly, the water storage tank 20 may be provided with an overflow port 22 . When the washing equipment 10 produces too much waste water, the excess waste water entering the water storage tank 20 can directly enter the sewer through the overflow port 22 . Both the water storage tank 20 and the booster tank 40 can be provided with a drain valve 200 .

PLC and the signal connection mode and control between PLC and pressure sensor, water pump, solenoid valve, water level sensor and other components have been widely used at present, and its structure and principle are the same as those of the prior art, and will not be repeated here.

Claims (7)

1. A universal water-saving system, used to transport the water discharged from the washing equipment (10) to the water-using equipment (50), the universal water-saving system comprising a water storage tank (20) located below the washing equipment (10), and The water storage tank (20) communicates with the drain port of the washing equipment (10), and it is characterized in that: the water storage tank (20) is connected with a booster tank (40) through a water pump (30) and a second check valve (31), The booster tank (40) is connected to water equipment (50). 2. The universal water-saving system according to claim 1, characterized in that: the universal water-saving system includes a PLC (60), and a pressure sensor (41) is arranged in the booster box (40), and simultaneously , the pressure sensor (41) and the water pump (30) are connected with the PLC (60) signal. 3. The universal water-saving system according to claim 2, characterized in that: when the pressure sensor (41) detects that the pressure in the booster tank (40) is P≤1MPa, the PLC (60) controls the water pump (30) is opened, and when P=3MPa, PLC (60) controls water pump (30) to close. 4. The universal water-saving system according to claim 1, characterized in that: the water storage tank (20) is provided with a water level sensor (21), and the water storage tank (20) passes through the first normally closed solenoid valve ( 70) is connected to the running water pipe (100), and at the same time, the water level sensor (21) and the first normally closed solenoid valve (70) are connected to the PLC (60) signal. 5. The universal water-saving system according to claim 4, characterized in that: the water level sensor (21) senses that the water level in the water storage tank (20) is not higher than that of the water storage tank (20) and the water pump (30) When the height of the water inlet of the connecting pipe between them is reached, the PLC (60) controls the first normally closed solenoid valve (70) to open until the water level in the water storage tank (20) reaches the gap between the water storage tank (20) and the water pump (30). When the water inlet of the connecting pipe is 100mm above, the PLC (60) controls the first normally closed solenoid valve (70) to close. 6. The universal water-saving system according to claim 1, characterized in that: a check valve (90) is provided between the water equipment (50) and the booster tank (40), and at the same time, the water equipment (50) ) is connected to the tap water pipe (100) through a second normally closed solenoid valve (80), and the second normally closed solenoid valve (80) is opened when the power is cut off. 7. The universal water saving system according to any one of claims 1 to 6, characterized in that: the water storage tank (20) is provided with an overflow port (22).

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