Household water-saving system for residence community

Abstract

The utility model discloses a household water-saving system for a residence community, which belongs to the technical field of water supply and drainage and comprises a water collecting tank, a gas water heater, a three-way pipe I, a first water using device, a second water using device, a third water using device, a second temperature control valve, a temperature detector, a first water stop valve and a first temperature control valve. According to the technical scheme, the purpose of collecting and recycling water which is just discharged from the gas water heater and does not meet the temperature requirement can be achieved. The water meter is additionally arranged on the overflow pipe of the water collecting tank, and water is collected to a place similar to a rainwater collecting pool of a residential area, so that water resources are effectively utilized, water fees are paid for users, and landscape water fees are saved for property management of the residential area. The bottom of the water collecting tank is communicated with water using equipment similar to a flushing tank, when the liquid level detector in the water collecting tank detects that the water level meets the water using condition, water in the water collecting tank can be reused by controlling the first liquid level electromagnetic valve, and therefore the purpose of saving water is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage, in particular to a household water-saving system in a residential area. Background Art

[0002] Nowadays, every household in the residential area is equipped with a gas water heater, and with the improvement of people's living standards, the frequency of use of gas water heaters is relatively high, generally used for washing vegetables, washing dishes, taking a bath, etc. Since gas water heaters need to heat cold water by burning natural gas, natural gas-related equipment needs to be installed in a well-ventilated place. Therefore, the current mainstream installation location is the window position in the kitchen, which causes the natural gas water heater to be far away from the location where hot water is used, such as the bathroom washbasin or shower or kitchen sink. Furthermore, it takes time to heat water, and during this period a large amount of cold water or water that does not meet the temperature requirements will flow out through the pipeline. In real life, people usually let this part of water flow directly into the sewer, resulting in serious waste.

[0003] In the prior art, there is a household water-saving device (patent number 201220508095.4), which includes a wash basin, a water collection tank, and a toilet. The water outlet of the wash basin is connected to the water collection tank, and the water collection tank and the toilet water tank are connected. The water collection tank is installed in the wall, and the structure is simple and easy to use. However, this water-saving device can only collect water from the wash basin, and there are disadvantages of small amount of collected water and poor water quality. There is also a patent that discloses a cold water recovery device (patent number 201520874377.X). This patent seems to solve the problem of cold water waste. In fact, the whole solution cannot be intelligently controlled and is very difficult to implement. In particular, the water temperature cannot be effectively confirmed, and the switching time of the first water valve and the second water valve can only be judged based on experience. In addition, when the water storage tank is full, the technical solution directly chooses to flow the excess water into the sewer, which actually does not achieve the purpose of real water saving. There is also a patent that discloses a cold water recovery device (patent number 201520874377.X), which recycles the cold water just generated by each household's natural gas water heater, thereby saving water. However, the beneficiaries of this technical solution are not the users themselves, and a large amount of cold water is collected and may not be used in time, which may still cause waste.

[0004] Based on the above analysis, it is necessary to provide a household water-saving system for residential areas to truly achieve the purpose of water saving. Utility Model Content

[0005] The utility model aims to provide a household water-saving system in a residential area, so as to solve the problem that water which does not meet the temperature requirement and is generated during the heating process of a natural gas water heater cannot be effectively utilized.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: comprising a water collecting tank, a gas water heater, a three-way pipe, a first water-using device, a second water-using device, and a third water-using device;

[0007] One end of the three-way pipe 1 is connected to the gas water heater, one end is connected to the water collecting tank, and one end is connected to the first water-using equipment; a second temperature control valve is installed on the water pipe connected to the first water-using equipment by the three-way pipe 1; a temperature detector is installed on the water pipe connected to the gas water heater by the three-way pipe 1, and a first water stop valve and a first temperature control valve are installed in sequence on the water pipe connected to the water collecting tank by the three-way pipe 1;

[0008] The second water-using device is connected to the bottom of the water collecting tank through a water pipe; the third water-using device is connected to the top side of the water collecting tank; a water meter is installed on the water pipe connecting the third water-using device and the water collecting tank.

[0009] The preferred solution also includes three-way pipes, one end of which is connected to three-way pipes, one end is connected to the second cold water source, and one end is connected to the first water-using equipment; a hot water valve and a second temperature control valve are installed in sequence on the water pipe connected to three-way pipes and one-way pipes; a cold water valve is installed on the water pipe connected to three-way pipes and the second cold water source.

[0010] Furthermore, the first water-using equipment is a shower.

[0011] The preferred solution also includes a tee pipe 2 and a liquid level detector, one end of the tee pipe 2 is connected to the second water-using equipment through a water pipe, one end is connected to the first cold water source, and one end is connected to the bottom of the water collecting tank; a second liquid level solenoid valve is installed on the water pipe connecting the tee pipe 2 and the first cold water source; a second water stop valve and a first liquid level solenoid valve are installed in sequence on the water pipe connecting the tee pipe 2 and the water collecting tank; and the liquid level detector is installed in the water collecting tank.

[0012] Furthermore, the second water-using equipment is a flushing tank, which is also connected to the toilet bowl through a water pipe.

[0013] Preferably, the third water-using device is a rainwater collection pool.

[0014] Furthermore, there are multiple water collecting tanks, each of which is connected to a water collecting pipe through a water pipe, and the water collecting pipe is connected to a rainwater collection pool; a water meter is installed on the water pipe connecting the water collecting tank and the water collecting pipe.

[0015] The preferred solution is that the water collecting tank is installed in the bathroom or kitchen ceiling.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In the utility model, the temperature of the water outlet from the gas water heater is detected in real time by a temperature detector. When the temperature is lower than a preset value, the first temperature control valve is automatically opened and the second temperature control valve is closed, so that water below the preset temperature is stored in the water collecting tank, thereby achieving the purpose of saving water; when the temperature is higher than the preset temperature value, the second temperature control valve is automatically opened and the first temperature control valve is closed, so that effective hot water can be used for bathing, washing vegetables, etc.

[0018] 2. In the utility model, when the water level in the water collecting tank is too high, the water is connected to the water collecting pipe through the overflow water pipe. The water collecting pipe can connect the water of each household to a place or equipment like a rainwater collection pool, so that it can be used as landscape water, fish farming or watering flowers and plants; a water meter is installed on the overflow water pipe, so as to save water and give users a certain subsidy at the same time. For users, it meets the purpose of saving water and saving money at the same time. For property, it reduces the cost of maintenance and management of the community.

[0019] 3. In the utility model, a liquid level detector is installed in the water collecting tank. When water is needed, such as a flush tank or a toilet, when it is detected that the liquid level in the water collecting tank is higher than a preset value, the first liquid level solenoid valve can be opened to release the stored water in the water collecting tank, thereby achieving the purpose of effectively saving water; when it is detected that the liquid level in the water collecting tank is lower than the preset value, the first liquid level solenoid valve is closed and the second liquid level solenoid valve is opened to use the water from the first cold water source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall water supply connection of the utility model;

[0021] Figure 2 This is a schematic diagram of the water supply connection when the shower head of the utility model is used;

[0022] Figure 3 This is a schematic diagram of water supply connection when the utility model flushes the water tank;

[0023] Figure 4 This is a schematic diagram of the pipeline connection between the rainwater collection pool and each water collection tank of the utility model.

[0024] In the figure: 1. Shower; 2. Three-way pipe; 3. Water collecting tank; 4. Flush tank; 5. Three-way pipe; 6. Gas water heater; 7. First cold water source; 8. Second cold water source; 9. Temperature detector; 10. Liquid level detector; 11. First temperature control valve; 12. Second temperature control valve; 13. First liquid level solenoid valve; 14. Second liquid level solenoid valve; 15. Two-way pipe; 16. Water collecting pipe; 17. Toilet; 20. Hot water valve; 21. First water stop valve; 22. Second water stop valve; 23. Water meter; 24. Cold water valve; 25. Rainwater collection tank. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 , the utility model provides a technical solution: a household water-saving system in a residential area, comprising a water collection tank 3, a gas water heater 6, a three-way pipe 5, a first water-using device, a second water-using device, and a third water-using device;

[0027] One end of the three-way pipe 5 is connected to the gas water heater 6, one end is connected to the water collecting tank 3, and one end is connected to the first water-using equipment; a second temperature control valve 12 is installed on the water pipe connecting the three-way pipe 5 with the first water-using equipment; a temperature detector 9 is installed on the water pipe connected to the three-way pipe 5 and the gas water heater 6, and a first water stop valve 21 and a first temperature control valve 11 are installed in sequence on the water pipe connecting the three-way pipe 5 and the water collecting tank 3; the first temperature control valve 11 and the second temperature control valve 12 can form an interlocking state, that is, only one of the valves is open at any time.

[0028] The second water-using device is connected to the bottom of the water collecting tank 3 through a water pipe; the third water-using device is connected to the top side of the water collecting tank 3; a water meter 23 is installed on the water pipe connecting the third water-using device and the water collecting tank 3, and the water pipe is an overflow pipe to prevent the water in the water collecting tank 3 from overflowing.

[0029] Reference Figure 2 The optimized implementation scheme also includes a three-way pipe 2, one end of which is connected to the three-way pipe 5, one end is connected to the second cold water source 8, and one end is connected to the first water-using equipment; a hot water valve 20 and a second temperature control valve 12 are installed on the water pipe connected to the three-way pipe 2 and the three-way pipe 5 in sequence; a cold water valve 24 is installed on the water pipe connected to the three-way pipe 2 and the second cold water source 8.

[0030] Reference Figure 2 , a further solution, the first water-using equipment is a shower head 1.

[0031] Reference Figure 3The optimized implementation scheme also includes a three-way pipe 15 and a liquid level detector 10. One end of the three-way pipe 15 is connected to the second water-using equipment through a water pipe, one end is connected to the first cold water source 7, and one end is connected to the bottom of the water collecting tank 3; a second liquid level solenoid valve 14 is installed on the water pipe connecting the three-way pipe 15 and the first cold water source 7; a second water stop valve 22 and a first liquid level solenoid valve 13 are installed in sequence on the water pipe connecting the three-way pipe 15 and the water collecting tank 3; the liquid level detector 10 is installed in the water collecting tank 3.

[0032] Reference Figure 3 In a further solution, the second water-using device is a flushing tank 4, which is also connected to the toilet bowl 17 through a water pipe.

[0033] Reference Figure 4 , optimize the technical solution, the third water-using equipment is the rainwater collection pool 25.

[0034] Reference Figure 4 In a further solution, there are multiple water collecting tanks 3, each of which is connected to the water collecting pipe 16 through a water pipe, and the water collecting pipe 16 is connected to the rainwater collection pool 25; the water meter 23 is installed on the water pipe connecting the water collecting tank 3 and the water collecting pipe 16.

[0035] According to the optimized technical solution, the water collecting tank 3 is installed in the bathroom or kitchen ceiling.

[0036] In summary, the utility model provides a household water-saving system for residential areas, which may include a water collecting tank 3, a gas water heater 6, a first temperature control valve 11, a second temperature control valve 12, and a shower head 1. When the temperature detector 9 detects that the water temperature coming out of the gas water heater 6 is less than a threshold value, the first temperature control valve 11 is opened, the second temperature control valve 12 is closed, and cold water enters the water collecting tank 3 for storage; when the water temperature is greater than or equal to the threshold value, the first temperature control valve 11 is closed, the second temperature control valve 12 is opened, and people can use the shower head 1 for showering. The temperature threshold can be set to 35 degrees Celsius. The above technical solution can collect the cold water generated in the heating process during the household hot water use process and reuse it, thereby achieving the purpose of saving water. It also includes a rainwater collection pool 25 and a water collection pipe 16. When a water collecting tank 3 is installed in each household on each floor of the residential building, a water meter 23 can be installed on the water pipe connecting the water collection pipe 16 with the water collecting tank 3. In the above technical scheme, when the water in the water collecting tank 3 is full, it flows into the rainwater collection pool 25 of the community through the overflow pipe and the water collecting pipe 16, and can be used for greening and fish farming in the community, thereby reducing the water cost of community management; in addition, the water meter can measure the overflow water volume, so as to give users subsidies at a certain price, achieving a win-win effect for users and property. It can also include a liquid level detector 10, a flush tank 4, a first liquid level solenoid valve 13, a second liquid level solenoid valve 14, and a toilet 17. When the liquid level detector 10 detects that the water level in the water collecting tank 3 meets the requirements, the first liquid level solenoid valve 13 is in an open state, and the second liquid level solenoid valve 14 is in a closed state. At this time, the water in the flush tank 4 is provided by the water collecting tank 3; when the liquid level detector 10 detects that the water level in the water collecting tank 3 does not meet the requirements, the first liquid level solenoid valve 13 is in a closed state, and the second liquid level solenoid valve 14 is in an open state. At this time, the water in the flush tank 4 is provided by the first cold water source 7. In the above technical solution, the water stored in the water collecting tank 3 is used to flush the toilet 17, which saves a lot of water resources.

[0037] The circuit and communication control in the utility model are prior art and are not described here; the connection refers to the connection through water pipes.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A household water-saving system for residential areas, characterized by: It comprises a water collecting tank (3), a gas water heater (6), a three-way pipe (5), a first water-using device, a second water-using device, and a third water-using device; One end of the three-way pipe (5) is connected to the gas water heater (6), one end is connected to the water collecting tank (3), and one end is connected to the first water-using equipment; a second temperature control valve (12) is installed on the water pipe connecting the three-way pipe (5) and the first water-using equipment; a temperature detector (9) is installed on the water pipe connecting the three-way pipe (5) and the gas water heater (6); a first water stop valve (21) and a first temperature control valve (11) are installed in sequence on the water pipe connecting the three-way pipe (5) and the water collecting tank (3); The second water-using device is connected to the bottom of the water collecting tank (3) via a water pipe; the third water-using device is connected to the top side of the water collecting tank (3); and a water meter (23) is installed on the water pipe connecting the third water-using device and the water collecting tank (3).

2. A household water-saving system for residential areas according to claim 1, characterized in that: It also comprises a three-way pipe (2), one end of which is connected to the three-way pipe (5), one end is connected to the second cold water source (8), and one end is connected to the first water-using equipment; a hot water valve (20) and a second temperature control valve (12) are installed in sequence on the water pipe connected to the three-way pipe (2) and the three-way pipe (5); a cold water valve (24) is installed on the water pipe connected to the two-way pipe (2) and the second cold water source (8).

3. A household water-saving system for residential areas according to claim 1 or 2, characterized in that: The first water-using device is a shower head (1).

4. A residential household water-saving system according to claim 1, characterized in that: It also comprises a second three-way pipe (15) and a liquid level detector (10); one end of the second three-way pipe (15) is connected to the second water-using equipment through a water pipe, one end is connected to the first cold water source (7), and one end is connected to the bottom of the water collecting tank (3); a second liquid level solenoid valve (14) is installed on the water pipe connecting the second three-way pipe (15) and the first cold water source (7); a second water stop valve (22) and a first liquid level solenoid valve (13) are installed in sequence on the water pipe connecting the second three-way pipe (15) and the water collecting tank (3); and the liquid level detector (10) is installed in the water collecting tank (3).

5. A household water-saving system for residential areas according to claim 1 or 4, characterized in that: The second water-using device is a flushing tank (4), and the flushing tank (4) is also connected to the toilet (17) through a water pipe.

6. A residential household water-saving system according to claim 1, characterized in that: The third water-using equipment is a rainwater collection pool (25).

7. A household water-saving system for residential areas according to claim 6, characterized in that: There are a plurality of water collecting boxes (3), each of which is connected to a water collecting pipe (16) via a water pipe, and the water collecting pipe (16) is connected to a rainwater collection pool (25); the water meter (23) is installed on the water pipe connecting the water collecting box (3) and the water collecting pipe (16).

8. A residential household water-saving system according to claim 1, characterized in that: The water collecting tank (3) is installed in the bathroom or kitchen ceiling.

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