Building water saving system and method

Abstract

The invention discloses a building water saving system and method.The system comprises water purifiers arranged on all floors of a building, a controller, a non-drinking water using module and water storage tanks, and the water storage tanks comprise the first water storage tank arranged on the top floor of the building and the second water storage tanks arranged on the middle floor and the bottom floor of the building; a first tap water inlet and a wastewater outlet are formed in the water purifier; the first water storage tank and the second water storage tank are each provided with a first water inlet, a first water outlet and a second water outlet, and the second water storage tank is further provided with a second water inlet. The first water inlet is connected to the wastewater outlet; the second water inlet is connected to the first water outlet of the upper floor of the corresponding building floor through an electric three-way valve, and the electric three-way valve is further connected to a non-drinking water using module. By means of the scheme, the water storage tank can supply water to the next floor of the building floor corresponding to the water storage tank and the non-drinking water using module of the building floor corresponding to the water storage tank, and the water storage tank of each floor can be fully utilized.

Description

Technical Field

[0001] The present application generally relates to the field of energy-saving water use technology. More specifically, the present application relates to a building water-saving system and method. Background Art

[0002] With the continuous development of energy-saving and consumption-reducing technologies, not only are traditional energy sources replaced with green ones, but energy consumption is also managed in a refined manner. As one of the important resources for human life, water conservation can not only reduce daily water costs, but also avoid environmental pollution caused by repeated filtration of water resources using chemical reagents. With the help of sensing devices installed in buildings to collect data, optimize water resource consumption through comprehensive calculations and intelligent control systems, reduce manual intervention, and continuously improve water-saving measures that are more in line with work and life needs, thereby greatly improving the efficiency of building water resource utilization.

[0003] In the prior art, there are two main types of building water-saving systems. One is to use the toilet tank connected to the washbasin under the bathroom to recycle the sewage. The other is to store the wastewater and then supply it to other non-drinking domestic water in the form of boosting pressure, so as to achieve the effect of wastewater reuse within the family. However, the existing related water-saving systems are simply a process of collecting and replenishing wastewater. In addition, in terms of wastewater utilization, due to the poor quality of the wastewater itself, the uses that can be used are limited. If the scope of application of wastewater is to be expanded, the wastewater must be filtered twice, which will incur corresponding costs and increase the secondary filtration equipment, which will increase the overall cost of the water-saving system.

[0004] In view of this, there is an urgent need to provide a building water-saving solution to make full use of wastewater in the building water-saving process, save water resources, and reduce the cost of circulating water treatment. Summary of the invention

[0005] In order to at least solve one or more of the technical problems mentioned above, the present application proposes a building water-saving solution in multiple aspects.

[0006] In a first aspect, the present application provides a building water-saving system, comprising: a water purifier, a controller, a non-drinking water use module, and a water tank arranged on each floor of the building, wherein the water tank comprises a first water tank arranged on the top floor of the building and a second water tank arranged on the middle floor and the bottom floor of the building; the water purifier is provided with a first tap water inlet and a wastewater outlet; the first water tank and the second water tank are both provided with a first water inlet, a first water outlet, a second water outlet, a water immersion sensor and a water level meter, and the second water tank is also provided with a second water inlet; the first water inlet is connected to the wastewater outlet through a first flow meter; the second water inlet is connected to the first water outlet of the upper floor of the corresponding building layer through an electric three-way valve, and a second flow meter is provided between the electric three-way valve and the second water inlet The electric three-way valve is connected to the non-drinking water use module through a third flowmeter; when the building layer corresponding to the first water outlet is the top floor or the middle floor, the first water outlet is connected to the second water inlet of the next floor of the corresponding building layer; when the building layer corresponding to the first water outlet is the bottom floor, the first water outlet is connected to the outlet water pipe through an electromagnetic valve; the second water outlet is connected to the non-drinking water use module through an electric booster water pump; the non-drinking water use module is provided with a second tap water inlet, and the second tap water inlet is connected to the tap water source through an electric water valve; the water immersion sensor, the water level meter, the first flowmeter, the second flowmeter, the third flowmeter, the electric three-way valve, the electric booster water pump, and the electric water valve all communicate with the controller.

[0007] In some embodiments, a first one-way valve is further connected between the electric three-way valve and the non-drinking water usage module.

[0008] In some embodiments, a second one-way valve is further connected between the second water outlet and the non-drinking water usage module.

[0009] In some embodiments, the first water storage tank and the second water storage tank are also provided with an electric air valve and a dirt storage tank, the electric air valve communicates with the controller, and the bottom of the dirt storage tank is lower than the position of the first water outlet and the position of the second water outlet.

[0010] In a second aspect, the present application provides a building water-saving method, which uses a building water-saving system as described in any embodiment of the first aspect to save water in a building, and the method includes: a controller arranged on the i-th floor of the building determines whether a water tank on the i-th floor of the building is overflowing based on a signal collected by a water level meter on the i-th floor of the building, wherein the i-th floor belongs to the middle floor of the building; in response to the water tank on the i-th floor of the building not overflowing, the controller on the i-th floor of the building controls the electric booster water pump on the i-th floor of the building to turn on so that the water tank on the i-th floor of the building supplies water to the non-i-th floor of the building. The drinking water usage module or updates i=i+1, and returns to the step of determining whether the water tank is overflowing; in response to the water tank on the i-th floor of the building overflowing, the controller on the i-th floor of the building sends an overflow signal to the controller on the i-1th floor of the building, and obtains the water level reservation value corresponding to the water tank on the i-th floor of the building; the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate, so that the water tank on the i-th floor of the building supplies water to the water tank on the i-1th floor of the building, and the water supply is the difference between the water level of the water tank on the i-th floor of the building and the water level reservation value.

[0011] In some embodiments, in response to the water tank on the i-th floor of the building not being full, the controller on the i+1th floor of the building determines whether there is water in the water tank on the i+1th floor of the building based on the signal collected by the water immersion sensor on the i+1th floor of the building; in response to the water tank on the i+1th floor of the building being empty, the controller on the i-th floor of the building controls the electric booster water pump on the i-th floor of the building to turn on, so that the water tank on the i-th floor of the building supplies water to the non-drinking water use module on the i-th floor of the building; in response to the water tank on the i+1th floor of the building having water, i=i+1 is updated, and the process returns to the step of determining whether the water tank is full to determine whether the water tank on the i+1th floor is full.

[0012] In some embodiments, in the process of obtaining the water level reservation value corresponding to the water tank of the i-th floor of the building, the controller of the i-th floor of the building performs the following steps: reading the reserved water percentage data stored in the internal specific storage area, and calculating the water-saving deviation value of the i-th floor of the building based on the water-saving deviation value calculation formula of the i-th floor of the building; judging whether the water-saving deviation value of the i-th floor of the building is 0; in response to the water-saving deviation value of the i-th floor of the building being 0, not updating the reserved water percentage data stored in the internal specific storage area; in response to the water-saving deviation value of the i-th floor of the building being not 0, updating the reserved water percentage stored in the internal specific storage area, storing the updated reserved water percentage in the internal specific storage area, overwriting the reserved water percentage data originally stored in the internal specific storage area; reading the current internal specific storage area; The percentage of reserved water stored in the area is calculated, and the reserved water volume corresponding to the water tank on the i-th floor of the building is calculated based on the reserved water volume percentage; the water level reservation value corresponding to the water tank on the i-th floor of the building is obtained through the storage water volume of the water tank on the i-th floor of the building and its corresponding reserved water volume; wherein, the water-saving deviation value calculation formula for the i-th floor of the building is: ΔB=W1+W2-W3-N×(1-R)×L, ΔB is the water-saving deviation value, W1 is the total volume of water passing through the first flow meter on the i-th floor of the building, W2 is the total volume of water passing through the second flow meter on the i-th floor of the building, W3 is the total volume of water passing through the third flow meter on the i-1th floor of the building, N is the number of overflows of the water tank on the i-th floor of the building within the set time, R is the percentage of reserved water corresponding to the water tank on the i-th floor of the building, and L is the total volume of the water tank on the i-th floor of the building.

[0013] In some embodiments, after the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate, so that the water tank on the i-1th floor of the building supplies water to the water tank on the i-1th floor of the building, the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate again, so that the water tank on the i-1th floor of the building supplies water to the non-drinking water usage module on the i-1th floor of the building.

[0014] In some embodiments, the method further includes: a controller disposed on the top floor of the building controls the electric booster water pump on the top floor of the building to turn on so that the water storage tank on the top floor of the building supplies water to the non-drinking water usage module on the top floor of the building.

[0015] In some embodiments, the method further includes: a controller disposed on the ground floor of the building determines whether the water tank on the ground floor of the building is overflowing based on a signal collected by a water level meter on the ground floor of the building; in response to the water tank on the ground floor of the building not overflowing, the controller on the ground floor of the building controls the electric booster water pump on the ground floor of the building to open so that the water tank on the ground floor of the building supplies water to the non-drinking water use module on the ground floor of the building; in response to the water tank on the ground floor of the building overflowing, the controller on the ground floor of the building calculates the water level retention value corresponding to the water tank on the ground floor of the building based on the water-saving deviation value calculation formula on the ground floor of the building, and controls the solenoid valve to open so that the water tank on the ground floor of the building is filled with water through the export The water pipe exports water to the green belt of the building and returns to the step of determining whether the water tank on the ground floor of the building is overflowing, wherein the exported water volume is the difference between the water level of the water tank on the ground floor of the building and the water level retention value; wherein the water-saving deviation value calculation formula for the ground floor of the building is: ΔB=W1+W2-N×(1-R)×L, ΔB is the water-saving deviation value, W1 is the total volume of water passing through the first flow meter on the ground floor of the building, W2 is the total volume of water passing through the second flow meter on the ground floor of the building, N is the number of overflows of the water tank on the ground floor of the building within a set time, R is the percentage of retained water corresponding to the water tank on the ground floor of the building, and L is the total volume of the water tank on the ground floor of the building.

[0016] Through the building water-saving solution provided above, the embodiment of the present application can enable the water tank to supply water to the next floor of the corresponding building layer and the non-drinking water use module of the corresponding building layer by connecting the first water outlet of the water tank to the second water inlet of the next floor of the corresponding building layer through an electric three-way valve when the building layer corresponding to the first water outlet of the water tank is the top floor or the middle floor, and the electric three-way valve is connected to the non-drinking water use module, so that the water tank of each floor can be fully utilized. In addition, when the building layer corresponding to the first water outlet of the water tank is the bottom floor, the embodiment of the present application can connect the first water outlet to the outlet water pipe through an electromagnetic valve, so that water can be exported to the building green belt for green irrigation, which can avoid overflowing of the water tank on the bottom floor of the building.

[0017] Furthermore, in some embodiments, by connecting a first one-way valve between the electric three-way valve and the non-drinking water module, and connecting a second one-way valve between the second water outlet and the non-drinking water module, it is possible to avoid backflow when the water tank on the current layer or the upper layer supplies water to the non-drinking water module, so that the upper and lower layer water tanks are isolated from each other on the water use side. Furthermore, in some embodiments, by providing a dirt storage tank for the water tank, impurities in the water can be precipitated in the dirt storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1 An exemplary structural block diagram of a building water-saving system according to an embodiment of the present application is shown;

[0020] Figure 2 An exemplary structural diagram of a second water storage tank according to an embodiment of the present application is shown;

[0021] Figure 3 An exemplary structural block diagram of a controller and devices connected thereto according to an embodiment of the present application is shown;

[0022] Figure 4 An exemplary flow chart of a building intermediate layer water saving method according to an embodiment of the present application is shown;

[0023] Figure 5 An exemplary flow chart of calculating the water level retention value according to an embodiment of the present application is shown;

[0024] Figure 6 An exemplary flow chart of a method for saving water on the ground floor of a building according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0026] It should be understood that the terms "include" and "comprising" used in the specification and claims of the present application indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in this application specification and claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms. It should also be further understood that the term "and / or" used in this application specification and claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0028] As used in this specification and claims, the term "if" may be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" may be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0029] The specific implementation of the present application is described in detail below with reference to the accompanying drawings.

[0030] In the prior art, the relevant water-saving system is simply a process of wastewater collection and replenishment. In the wastewater collection process, an open water tank device is used to collect the wastewater generated by the water purifier. The open water tank structure is much more convenient in the design of the water circulation system. However, during the long-term operation of the open water tank device, it is impossible to prevent the entry of external dust and foreign matter, and there is a risk of re-contamination of the wastewater. Even if a filtering device is added, the operation and maintenance costs of the entire system will increase, and the economic benefits will be reduced.

[0031] The prior art often uses a flush toilet tank directly connected to an overflow pipe to supply water to the lower floor using the upper wastewater storage tank. However, in actual use of the building, the number of people on each floor is different and the water consumption is also uneven. The overflow pipe will be connected to the sewer or the lower toilet tank. When a large amount of wastewater is collected, the wastewater in the tank will overflow and be discharged from the overflow pipe, causing waste or entering the lower toilet tank. If the toilet tank is connected to tap water, there is no precise linkage control, which will cause the toilet tank to float too high and exceed the shut-off water level of the toilet tank, resulting in an increase in the water output of a single discharge, causing water waste. If there is no tap water supply and the toilet tank is only supplied by wastewater, when the utilization rate of the upper water purifier is not high, the normal use of the lower toilet cannot be guaranteed.

[0032] At the same time, the design of the water pipes has been reserved during the building construction phase. Some existing technologies have made great modifications in the design scheme, ignoring the existing water supply and drainage system. For example, the water inlet and overflow design of the toilet are designed with holes on the toilet tank. The existing finished toilet tank products cannot meet such design requirements. The cost of customized toilets is high, and the cost cannot be recovered only through water-saving transformation, which makes the technology only remain on paper and cannot be truly implemented.

[0033] In addition, the existing building water-saving technology lacks intelligent integrated control and is not suitable for use in large-scale scenarios. It does not collect and calculate the wastewater production and wastewater consumption of each floor, nor does it reasonably allocate the wastewater utilization of all floors of the building. Some building water-saving technologies simply use gravity to collect wastewater from top to bottom and supply it floor by floor. The water is supplied downward by overflowing the storage. The excess wastewater on the bottom floor is returned to the water tank on the top floor by water pumps and independent pipes. This method not only does not use wastewater reasonably, but the gravitational potential energy of the circulating water requires a large-lift pump to transport the wastewater from the bottom to the top floor. The power consumption is large and uneconomical, and it also brings more hidden dangers of system failure.

[0034] In view of this, the embodiment of the present application provides a building water-saving solution, which can collect the filtered wastewater and cleaning wastewater generated by the water purifiers on each floor of the building and store them in a closed water tank. Through the selection mechanism, it can give priority to supplying the washbasin and toilet tank on the lower floor, and can also supply water to the washbasin and toilet tank on this floor through a bypass. At the same time, the actual structure of the building water pipeline is fully considered, and tap water is used as a backup water source for supply, which does not affect the original decoration design. At the same time, the flush toilet also uses an everyday toilet and water tank, and there is no need to design and modify the toilet. In addition, dynamic adjustment enables the collected wastewater to be fully utilized. Through the data collection of the sensor and the intelligent analysis of the data by the controller, different system working modes are switched, so that the overflowing wastewater is allocated to the floor with insufficient water supply, thereby realizing the rational use of wastewater.

[0035] Figure 1 An exemplary flow chart of the building water saving system 100 according to an embodiment of the present application is shown.

[0036] like Figure 1 As shown, the building water-saving system 100 includes a water purifier 110, a water tank, a controller 130, and a non-drinking water use module 140 arranged on each floor of the building, wherein the water tank includes a first water tank 120 arranged on the top floor of the building and a second water tank 121 arranged on the middle floor and the bottom floor of the building.

[0037] In the embodiment of the present application, the water purifier 110 is provided with a first tap water inlet 111 and a waste water outlet 112 .

[0038] Specifically, the water purifier 110 is used to filter the tap water introduced through the first tap water inlet 111 using a purification filter element to remove impurities and water alkali in the water, and discharge the waste water through the wastewater outlet 112. At the same time, the water purifier 110 performs automatic cleaning work according to the output of clean water, and the flushing waste water is also discharged through the wastewater outlet 112. Although the waste water discharged by the water purifier cannot be drunk directly, it can be used in places where water quality requirements are not high, so as to maximize the value of water resources. Therefore, the present invention can make full use of the waste water discharged by the water purifier 110 by linking and controlling the water purifier waste water, non-drinking water use module, and water storage tank. It not only saves water resources, but also reduces the cost of circulating water treatment.

[0039] In an embodiment of the present application, the first water tank 120 and the second water tank 121 are both closed water tanks, and the first water tank 120 and the second water tank 121 are both provided with a first water inlet 122, a first water outlet 124, a second water outlet 125, a water immersion sensor 126, a water level meter 127, an electric air valve 128 and a sewage storage tank 129, and the second water tank 121 is also provided with a second water inlet 123.

[0040] Specifically, the first water inlet 122 is connected to the wastewater outlet 112 through the first flowmeter 151, the second water inlet 123 is connected to the first water outlet 124 of the upper floor of its corresponding building floor through the electric three-way valve 152, a second flowmeter 154 is arranged between the electric three-way valve 152 and the second water inlet 123, and the electric three-way valve 152 is connected to the non-drinking water use module 140 through the third flowmeter 153 and the first one-way valve 1591.

[0041] By connecting the second water inlet 123 to the first water outlet 124 of the upper floor of its corresponding building layer through the electric three-way valve 152, and the electric three-way valve 152 is connected to the non-drinking water use module 140 through the third flow meter 153 and the first one-way valve 1591, water can be supplied to the water tank on this floor and the non-drinking water use module 140 on this floor through the upper water tank.

[0042] By providing the first one-way valve 1591, backflow can be avoided when the upper water storage tank supplies water to the non-drinking water use module 140, so that the upper and lower water storage tanks are isolated from each other on the water use side.

[0043] Specifically, when the building floor corresponding to the first water outlet 124 is the top floor or the middle floor, the first water outlet 124 is connected to the second water inlet 123 of the next floor of the corresponding building floor. When the building floor corresponding to the first water outlet 124 is the bottom floor, the first water outlet 124 is connected to the water outlet pipe 156 through the solenoid valve 155. The second water outlet 125 is connected to the non-drinking water use module 140 through the electric booster water pump 157 and the second one-way valve 1592.

[0044] By connecting the second water outlet 125 to the non-drinking water module 140 via the electric booster water pump 157 and the second one-way valve 1592 , the water storage tank on this floor can supply water to the non-drinking water module 140 on this floor.

[0045] By providing the second one-way valve 1592, backflow can be avoided when the water storage tank on the current layer supplies water to the non-drinking water use module 140, so that the upper and lower water storage tanks are isolated from each other on the water use side.

[0046] Combine the following Figure 2 The specific structure of the second water storage tank 121 is described.

[0047] Figure 2 An exemplary structural diagram of the second water storage tank 121 according to an embodiment of the present application is shown.

[0048] like Figure 2 As shown, the first water inlet 122 and the second water inlet 123 are installed at the same height and are higher than the highest value of the water level gauge 127. The water immersion sensor 126 is installed at a position close to the bottom of the second water storage tank 121, and is used to monitor whether there is water in the second water storage tank 121. The water level gauge 127 is installed on the side wall of the second water storage tank 121, and is used to indicate the water storage amount of the second water storage tank 121. The electric air valve 128 is installed on the top of the second water storage tank 121, and its opening and closing can be controlled manually or by issuing instructions from the controller. A sewage storage tank 129 is set on the lower right side of the second water storage tank 121, and the sewage storage tank 129 includes a tank body 1291 and a maintenance cover 1292, and the maintenance cover 1292 is detachable. Specifically, the bottom of the sewage storage tank 129 is lower than the positions of the first water outlet 124 and the second water outlet 125. When the second water tank 121 is in normal use, impurities are deposited at the bottom of the second water tank 121. As the wastewater in the second water tank 121 is used, the water flow in the second water tank 121 flows toward the first water outlet 124 and the second water outlet 125. The heavier impurities will fall along the wall after entering the sewage storage tank 129, that is, the impurities in the water are deposited in the sewage storage tank 129.

[0049] When the sewage storage tank 129 needs to be cleaned, the aforementioned electric three-way valve 152 is controlled in coordination, and the electric booster water pump 157 and the electric air valve 128 are closed, so that negative pressure can be formed inside the closed second water tank 121, thereby blocking the water outflow from the second water tank 121, and then the cover plate 1292 can be removed and maintained to clean the sewage storage tank 129.

[0050] In the embodiment of the present application, the non-drinking water use module 140 is provided with a second tap water inlet 141 , and the second tap water inlet 141 is connected to the tap water source through an electric water valve 158 .

[0051] In the embodiment of the present application, the non-drinking water use module 140 includes a toilet, a wash basin, etc., and the present application does not limit this.

[0052] Combine the following Figure 3 The connection relationship between the aforementioned controller 130 and corresponding devices is described in detail.

[0053] Figure 3 An exemplary structural block diagram showing a controller and devices connected thereto according to an embodiment of the present application

[0054] like Figure 3 As shown, the water immersion sensor 126, water level meter 127, electric air valve 128, first flow meter 151, second flow meter 154, third flow meter 153, electric three-way valve 152, electric booster water pump 157, and electric water valve 158 of each building floor all communicate with the controller 130, and the controllers 130 between each building floor communicate with each other.

[0055] In the embodiment of the present application, at the ground floor of the building, the aforementioned solenoid valve 155 communicates with the controller 130 at the ground floor of the building.

[0056] In summary, through the building water-saving scheme provided above, the embodiment of the present application can enable the water tank to supply water to the next floor of the corresponding building layer and the non-drinking water use module of the corresponding building layer by connecting the first water outlet of the water tank to the second water inlet of the next floor through an electric three-way valve when the building layer corresponding to the first water outlet of the water tank is the top floor or the middle floor, and the electric three-way valve is connected to the non-drinking water use module, so that the water tank can supply water to the next floor of the corresponding building layer and the non-drinking water use module of the corresponding building layer at the same time, so that the water tank of each floor can be fully utilized. In addition, when the building layer corresponding to the first water outlet of the water tank is the bottom floor, the embodiment of the present application can connect the first water outlet to the outlet water pipe through an electromagnetic valve, so that water can be exported to the building green belt for green irrigation, so as to avoid overflowing of the water tank on the bottom floor of the building.

[0057] Furthermore, in some embodiments, by connecting a first one-way valve between the electric three-way valve and the non-drinking water module, and connecting a second one-way valve between the second water outlet and the non-drinking water module, backflow can be avoided when the water storage tank on the current layer or the upper layer supplies water to the non-drinking water module, so that the upper and lower layer water storage tanks are isolated from each other on the water use side. Furthermore, in some embodiments, by providing a dirt storage tank for the water storage tank, impurities in the water can be precipitated in the dirt storage tank.

[0058] The embodiment of the present application also provides a building water-saving method, which may adopt the aforementioned building water-saving system 100 to save building water, or may adopt other building water-saving systems to save building water, and the present application does not make any limitation thereto.

[0059] Figure 4 An exemplary flow chart showing a building intermediate layer water saving method 400 according to an embodiment of the present application

[0060] like Figure 4 As shown, in step S410, a controller disposed on the i-th floor of a building determines whether a water tank on the i-th floor of the building is overflowing based on a signal received from a water level meter on the i-th floor of the building, wherein the i-th floor belongs to the middle floor of the building.

[0061] In an embodiment of the present application, the controller on the i-th floor of the building receives a signal collected by a water level meter on the i-th floor of the building, processes the collected signal to obtain water level data in a water tank on the i-th floor of the building, and compares the water level in the water tank on the i-th floor of the building with a preset water level value. When the water level in the water tank on the i-th floor of the building is greater than the preset water level value, it is determined that the water tank on the i-th floor of the building is overflowing. On the contrary, when the water level in the water tank on the i-th floor of the building is less than or equal to the preset water level value, it is determined that the water tank on the i-th floor of the building is not overflowing.

[0062] In the embodiments of the present application, the preset water level value is set according to actual needs and application scenarios, and the present application does not limit this.

[0063] After executing step S410, in response to the water tank on the i-th floor of the building not overflowing, the controller on the i-th floor of the building controls the electric booster pump on the i-th floor of the building to turn on so that the water tank on the i-th floor of the building supplies water to the non-drinking water use module on the i-th floor of the building or updates i=i+1, and returns to the step of determining whether the water tank is overflowing. Specifically, the specific steps involved in this process are: in response to the water tank on the i-th floor of the building not overflowing, in step S421, the controller on the i-th floor of the building sends a corresponding instruction to the controller on the i+1th floor of the building, and the controller on the i+1th floor of the building determines whether there is water in the water tank on the i+1th floor of the building based on the signal collected by the water immersion sensor on the i+1th floor of the building. In response to the water tank on the i+1th floor of the building being empty, in step S422, the controller on the i-th floor of the building controls the electric booster pump on the i-th floor of the building to turn on so that the water tank on the i-th floor of the building supplies water to the non-drinking water use module on the i-th floor of the building. In response to the presence of water in the water tank on the i+1th floor of the building, in step S423, i=i+1 is updated, and the process returns to the step of determining whether the water tank is overflowing, i.e., returns to step S410 to determine whether the water tank on the i+1th floor is overflowing, and the determination process is repeated until the water tank on the corresponding building floor is finally determined to be overflowing.

[0064] In an embodiment of the present application, the controller on the i+1th floor of the building processes the signal collected by the water immersion sensor on the i+1th floor of the building based on the received signal collected by the water immersion sensor on the i+1th floor of the building, and determines whether there is water in the water tank on the i+1th floor of the building based on the processed data.

[0065] In an embodiment of the present application, when the water tank on the i-th floor of the building is not overflowing, the controller on the i-th floor of the building determines whether there is water in the water tank on the i-th floor of the building based on the signal collected by the water immersion sensor on the i-th floor of the building. When there is water in the water tank on the i-th floor of the building, and there is no water in the water tank on the i+1-th floor of the building, the controller on the i-th floor of the building controls the electric booster water pump on the i-th floor of the building to open, so that the water tank on the i-th floor of the building supplies water to the non-drinking water use module on the i-th floor of the building. When there is no water in the water tank on the i-th floor of the building, and there is no water in the water tank on the i+1-th floor of the building, the controller on the i-th floor of the building controls the electric water valve on the i-th floor of the building to open, so that the tap water source supplies water to the non-drinking water use module on the i-th floor of the building. Thereby, it is possible to avoid the non-drinking water use module on the i-th floor of the building from being out of water.

[0066] After executing step S410, in response to the water tank on the i-th floor of the building overflowing, in step S430, the controller on the i-th floor of the building sends an overflow signal to the controller on the i-1-th floor of the building, and obtains the water level reserve value corresponding to the water tank on the i-th floor of the building.

[0067] In the embodiment of the present application, the specific process involved in the controller of the i-th floor of the building obtaining the water level reserve value corresponding to the water tank of the i-th floor of the building can be referred to Figure 5 .

[0068] Figure 5 An exemplary flow chart for calculating a water level retention value according to an embodiment of the present application is shown.

[0069] like Figure 5 As shown, in step S510, the reserved water percentage data stored in the internal specific storage area is read, and the water-saving deviation value of the i-th floor of the building is calculated based on the water-saving deviation value calculation formula of the i-th floor of the building. In step S520, it is determined whether the water-saving deviation value of the i-th floor of the building is 0. In response to the water-saving deviation value of the i-th floor of the building being 0, in step S530, the reserved water percentage data stored in the internal specific storage area is not updated. In response to the water-saving deviation value of the i-th floor of the building being not 0, in step S540, the reserved water percentage stored in the internal specific storage area is updated, and the updated reserved water percentage is stored in the internal specific storage area, overwriting the reserved water percentage data originally stored in the internal specific storage area. Next, in step S550, the reserved water percentage stored in the current internal specific storage area is read, and the reserved water corresponding to the water storage tank of the i-th floor of the building is calculated based on the reserved water percentage. In step S560, the water level reserve value corresponding to the water tank on the i-th floor of the building is obtained through the stored water volume of the water tank on the i-th floor of the building and its corresponding reserved water volume.

[0070] Specifically, the water-saving deviation value calculation formula for the i-th floor of the building is: ΔB=W1+W2-W3-N×(1-R)×L, ΔB is the water-saving deviation value, W1 is the total volume of water passing through the first flow meter on the i-th floor of the building, W2 is the total volume of water passing through the second flow meter on the i-th floor of the building, W3 is the total volume of water passing through the third flow meter on the i-1th floor of the building, N is the number of overflows of the water tank on the i-th floor of the building within the set time, R is the percentage of retained water corresponding to the water tank on the i-th floor of the building, and L is the total volume of the water tank on the i-th floor of the building.

[0071] In the embodiments of the present application, the aforementioned set time can be set according to actual needs, for example, an afternoon or a morning, and the present application does not limit this.

[0072] In an embodiment of the present application, the controller on the i-th floor of the building receives the total volume of water passing through the first flow meter on the i-th floor of the building within a set time, the total volume of water passing through the second flow meter on the i-th floor of the building, the total volume of water passing through the third flow meter on the i-1-th floor of the building, the number of overflow times of the water tank on the i-th floor of the building within a set time, the total volume of water storage when the water tank overflows stored in the controller, and reads the percentage data of water retained in a specific storage area inside it to calculate the water-saving deviation value of the i-th floor of the building.

[0073] In the embodiment of the present application, by reading the percentage of retained water in a specific internal storage area, the water-saving deviation value corresponding to the water tank on the i-th floor of the building can be calculated.

[0074] When the water-saving deviation value is positive, it means that when the system is operating normally, the water tank on this floor has surplus water for the washbasin and toilet tank on this floor. Therefore, when the water tank overflows and diverts, the water storage volume of the water tank at the diversion cutoff can be lowered (the percentage of retained water corresponding to the water tank on the i-th floor of the building can be lowered). When the water-saving deviation value is negative, it means that when the system is operating normally, the water tank on this floor does not have surplus water for the non-drinking water use module on this floor. Therefore, when the water tank overflows and diverts, the water storage volume of the water tank at the diversion cutoff can be increased (the percentage of retained water corresponding to the water tank on the i-th floor of the building can be increased). When the water-saving deviation value is zero, it means that the utilization rate of the water tank diversion system on this floor is the most ideal, and the water in the water tank is supplied to the washbasin and non-drinking water use module on the lower floor. At this time, the diversion cutoff water storage volume does not need to be adjusted.

[0075] Therefore, in the embodiment of the present application, the water-saving deviation value of each floor of the building is calculated to be zero. At this time, there is no need to start the electric booster pump. The water storage tank and the non-drinking water use module are completely supplied with water by the upper water storage tank through the gravitational potential energy of the water, and the power consumption is minimal. At the same time, there is no water in the water storage tanks on each floor after the building is closed, so that the wastewater utilization rate is the highest. In the embodiment of the present application, when the water-saving deviation value of the i-th floor of the building is greater than 0, the percentage of retained water stored in the internal specific storage area is reduced by a set percentage value; when the water-saving deviation value of the i-th floor of the building is less than 0, the percentage of retained water stored in the internal specific storage area is increased by a set percentage value. Then, the retained water percentage obtained after the reduction or increase is used to overwrite the retained water percentage data originally stored in the internal specific storage area.

[0076] In the embodiment of the present application, the aforementioned set percentage value is written in advance by the controller, which can be set according to actual needs, and the present application does not limit it here. For example, in some embodiments, the aforementioned set percentage value is 5%, when the water-saving deviation value of the i-th floor of the building is greater than 0, the percentage of the reserved water stored in the internal specific storage area is reduced by 5%, and when the water-saving deviation value of the i-th floor of the building is less than 0, the percentage of the reserved water stored in the internal specific storage area is increased by 5%.

[0077] In an embodiment of the present application, in the process of calculating the reserved water volume corresponding to the water tank on the i-th floor of the building based on the reserved water volume percentage, the reserved water volume corresponding to the water tank on the i-th floor of the building is obtained by multiplying the reserved water volume percentage by the corresponding storage water volume when the water tank on the i-th floor of the building is overflowing.

[0078] After executing step S430, in step S440, the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate, so that the water tank on the i-th floor of the building supplies water to the water tank on the i-1th floor of the building, and the water supply is the difference between the water level of the water tank on the i-1th floor of the building and the water level reservation value.

[0079] In an embodiment of the present application, the controller on the i-1th floor of the building controls the action of the electric three-way valve on the i-1th floor of the building, so that the channel of the electric three-way valve on the i-1th floor of the building connected to the first water outlet on the i-1th floor of the building and the channel of the electric three-way valve on the i-1th floor of the building connected to the second water inlet on the i-1th floor of the building are opened, thereby allowing the water tank on the i-1th floor of the building to supply water to the water tank on the i-1th floor of the building.

[0080] In the embodiment of the present application, after the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate so that the water tank on the i-1th floor of the building supplies water to the water tank on the i-1th floor of the building, the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate again, and the channel of the electric three-way valve on the i-1th floor of the building connected to the second water inlet on the i-1th floor of the building and the channel of the electric three-way valve on the i-1th floor of the building connected to the non-drinking water use module on the i-1th floor of the building are opened. Thus, the water tank on the i-1th floor of the building supplies water to the non-drinking water use module on the i-1th floor of the building.

[0081] A method for saving water on the top floor of a building is also provided in an embodiment of the present application. In the process of saving water on the top floor of a building, a controller arranged on the top floor of the building controls the electric booster water pump on the top floor of the building to turn on so that the water tank on the top floor of the building supplies water to the non-drinking water use module on the top floor of the building.

[0082] The present application also provides a method for saving water on the ground floor of a building. The specific process of saving water on the ground floor of a building can be found in Figure 6 .

[0083] Figure 6 An exemplary flow chart of a method for saving water on the ground floor of a building according to an embodiment of the present application is shown.

[0084] like Figure 6 As shown, in step S610, the controller set at the bottom of the building determines whether the water tank at the bottom of the building is overflowing based on the signal collected by the water level meter at the bottom of the building. In response to the water tank at the bottom of the building not overflowing, in step S620, the controller at the bottom of the building controls the electric booster water pump at the bottom of the building to open so that the water tank at the bottom of the building supplies water to the non-drinking water use module at the bottom of the building. In response to the water tank at the bottom of the building overflowing, in step S630, the controller at the bottom of the building calculates the water level retention value corresponding to the water tank at the bottom of the building based on the water-saving deviation value calculation formula at the bottom of the building, and controls the solenoid valve to open so that the water tank at the bottom of the building exports water to the building green belt through the export water pipe. After executing step S630, it returns to the step of determining whether the water tank at the bottom of the building is overflowing, that is, returns to step S610 until it is determined that the water tank at the bottom of the building is not overflowing.

[0085] Specifically, the amount of water exported from the water tank on the ground floor of the building to the green belt of the building is the difference between the water level of the water tank on the ground floor of the building and the water level reservation value.

[0086] When the water tank on the bottom floor of the building is not overflowing, the controller on the bottom floor of the building controls the electric booster water pump on the bottom floor of the building to turn on so that the water tank on the bottom floor of the building supplies water to the non-drinking water use module on the bottom floor of the building. Therefore, the bottom floor preferentially uses the bottom floor water tank to supply water to the non-drinking water use module. Since the electric booster water pump supplies water to the bottom floor faster than the upper floor, the consumption rate of the water tank on this floor is faster than the water supply rate from the upper floor to the bottom floor, thereby avoiding the overflow of the water tank.

[0087] In the embodiment of the present application, the water-saving deviation value calculation formula for the bottom floor of the building is: ΔB=W1+W2-N×(1-R)×L, ΔB is the water-saving deviation value, W1 is the total volume of water passing through the first flow meter on the bottom floor of the building, W2 is the total volume of water passing through the second flow meter on the bottom floor of the building, N is the number of overflows of the water tank on the bottom floor of the building within a set time, R is the percentage of retained water corresponding to the water tank on the bottom floor of the building, and L is the total volume of the water tank on the bottom floor of the building. Compared with the aforementioned water-saving deviation value calculation formula for the i-th floor of the building, when the bottom-floor controller calculates the water-saving deviation value for the bottom floor of the building, since there is no feedback value of the total volume of water passing through the third flow meter on the i-1th floor of the building, the value of W3 is 0 in the calculation of the water-saving deviation value for the bottom floor of the building.

[0088] In an embodiment of the present application, the specific process involved in the controller on the bottom floor of the building calculating the water level retention value corresponding to the water tank on the bottom floor of the building is the same as the specific process involved in the controller on the i-th floor of the aforementioned building obtaining the water level retention value corresponding to the water tank on the i-th floor of the building, and will not be repeated here.

[0089] Although multiple embodiments of the present application have been shown and described herein, it is obvious to those skilled in the art that such embodiments are provided only by way of example. Those skilled in the art can think of many changes, modifications and alternatives without departing from the thought and spirit of the present application. It should be understood that in the process of practicing the present application, various alternatives to the embodiments of the present application described herein can be adopted. The attached claims are intended to limit the scope of protection of the present application, and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A building water-saving system, characterized in that: include: A water purifier, a controller, a non-drinking water use module, and a water storage tank are arranged on each floor of the building, wherein the water storage tank includes a first water storage tank arranged on the top floor of the building and a second water storage tank arranged on the middle floor and the bottom floor of the building; The water purifier is provided with a first tap water inlet and a waste water outlet; The first water storage tank and the second water storage tank are both provided with a first water inlet, a first water outlet, a second water outlet, a water immersion sensor and a water level gauge, and the second water storage tank is also provided with a second water inlet; The first water inlet is connected to the wastewater outlet via a first flow meter; The second water inlet is connected to the first water outlet of the upper floor of the corresponding building layer through an electric three-way valve, a second flow meter is arranged between the electric three-way valve and the second water inlet, and the electric three-way valve is connected to the non-drinking water use module through a third flow meter; When the building layer corresponding to the first water outlet is the top layer or the middle layer, the first water outlet is connected to the second water inlet of the next layer of the building layer corresponding to the first water outlet; When the building floor corresponding to the first water outlet is the ground floor, the first water outlet is connected to the water outlet pipe through the solenoid valve; The second water outlet is connected to the non-drinking water use module via an electric booster water pump; The non-drinking water use module is provided with a second tap water inlet, and the second tap water inlet is connected to the tap water source through an electric water valve; The water immersion sensor, the water level meter, the first flow meter, the second flow meter, the third flow meter, the electric three-way valve, the electric booster water pump, and the electric water valve all communicate with the controller.

2. The building water-saving system according to claim 1, characterized in that: A first one-way valve is also connected between the electric three-way valve and the non-drinking water use module.

3. The building water-saving system according to claim 2, characterized in that: A second one-way valve is also connected between the second water outlet and the non-drinking water use module.

4. The building water-saving system according to claim 1, characterized in that: The first water storage tank and the second water storage tank are also provided with an electric air valve and a dirt storage tank. The electric air valve communicates with the controller, and the bottom of the dirt storage tank is lower than the position of the first water outlet and the position of the second water outlet.

5. A building water-saving method, characterized in that: Using the building water-saving system according to any one of claims 1 to 4 to save water in a building, the method comprises: The controller disposed on the i-th floor of the building determines whether the water storage tank on the i-th floor of the building is overflowing based on the signal collected by the water level meter on the i-th floor of the building, wherein the i-th floor belongs to the middle floor of the building; In response to the water tank on the i-th floor of the building not overflowing, the controller on the i-th floor of the building controls the electric booster water pump on the i-th floor of the building to turn on so that the water tank on the i-th floor of the building supplies water to the non-drinking water usage module on the i-th floor of the building or updates i=i+1, and returns to the step of determining whether the water tank is overflowing; In response to the water tank on the i-th floor of the building overflowing, the controller on the i-th floor of the building sends an overflow signal to the controller on the i-1-th floor of the building, and obtains the water level reserve value corresponding to the water tank on the i-th floor of the building; The controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate, so that the water tank on the i-th floor of the building supplies water to the water tank on the i-1th floor of the building, and the water supply is the difference between the water level of the water tank on the i-th floor of the building and the water level reservation value.

6. The building water saving method according to claim 5, characterized in that: In response to the water storage tank on the i-th floor of the building not overflowing, the controller on the i+1th floor of the building determines whether there is water in the water storage tank on the i+1th floor of the building based on the received signal collected by the water immersion sensor on the i+1th floor of the building; In response to the water tank on the i+1th floor of the building being out of water, the controller on the ith floor of the building controls the electric booster water pump on the ith floor of the building to turn on, so that the water tank on the ith floor of the building supplies water to the non-drinking water usage module on the ith floor of the building; In response to the water in the water tank on the i+1th floor of the building, i=i+1 is updated, and the process returns to the step of determining whether the water tank is overflowing to determine whether the water tank on the i+1th floor is overflowing.

7. The building water saving method according to claim 5, characterized in that: In the process of obtaining the water level reserve value corresponding to the water tank on the i-th floor of the building, the controller on the i-th floor of the building performs the following steps: Read the retained water percentage data stored in the internal specific storage area, and calculate the water-saving deviation value of the i-th floor of the building based on the water-saving deviation value calculation formula of the i-th floor of the building; Determine whether the water-saving deviation value of the i-th floor of the building is 0; In response to the water saving deviation value of the i-th floor of the building being 0, the retained water percentage data stored in the internal specific storage area is not updated; In response to the water-saving deviation value of the i-th floor of the building being not 0, updating the reserved water percentage stored in the internal specific storage area, storing the updated reserved water percentage in the internal specific storage area, overwriting the reserved water percentage data originally stored in the internal specific storage area; Read the percentage of retained water currently stored in the specific internal storage area, and calculate the retained water volume corresponding to the water tank on the i-th floor of the building based on the percentage of retained water; Obtain the water level retention value corresponding to the water tank on the i-th floor of the building through the storage water volume of the water tank on the i-th floor of the building and its corresponding reserved water volume; Among them, the calculation formula for the water-saving deviation value of the i-th floor of the building is: ΔB=W1+W2-W3-N×(1-R)×L, ΔB is the water-saving deviation value, W1 is the total volume of water passing through the first flow meter on the i-th floor of the building, W2 is the total volume of water passing through the second flow meter on the i-th floor of the building, W3 is the total volume of water passing through the third flow meter on the i-1th floor of the building, N is the number of overflows of the water tank on the i-th floor of the building within the set time, R is the percentage of retained water corresponding to the water tank on the i-th floor of the building, and L is the total volume of the water tank on the i-th floor of the building.

8. The building water-saving method according to claim 5, characterized in that: After the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate, so that the water tank on the i-1th floor of the building supplies water to the water tank on the i-1th floor of the building, the controller on the i-1th floor of the building controls the electric three-way valve on the i-1th floor of the building to operate again, so that the water tank on the i-1th floor of the building supplies water to the non-drinking water usage module on the i-1th floor of the building.

9. The building water-saving method according to claim 5, characterized in that: The method further comprises: The controller arranged on the top floor of the building controls the electric booster water pump on the top floor of the building to open so that the water storage tank on the top floor of the building supplies water to the non-drinking water use module on the top floor of the building.

10. The building water saving method according to claim 5, characterized in that: The method further comprises: The controller disposed at the bottom floor of the building determines whether the water storage tank at the bottom floor of the building is overflowing based on the received signal collected by the water level meter at the bottom floor of the building; In response to the water storage tank on the ground floor of the building not overflowing, the controller on the ground floor of the building controls the electric booster water pump on the ground floor of the building to turn on so that the water storage tank on the ground floor of the building supplies water to the non-drinking water usage module on the ground floor of the building; In response to the water storage tank on the ground floor of the building overflowing, the controller on the ground floor of the building calculates the water level retention value corresponding to the water storage tank on the ground floor of the building based on the water-saving deviation value calculation formula on the ground floor of the building, controls the solenoid valve to open, so that the water storage tank on the ground floor of the building exports water to the building green belt through the export water pipe, and returns to the step of determining whether the water storage tank on the ground floor of the building is overflowing, wherein the exported water volume is the difference between the water level of the water storage tank on the ground floor of the building and the water level retention value; Among them, the calculation formula for the water-saving deviation value of the ground floor of the building is: ΔB=W1+W2-N×(1-R)×L, ΔB is the water-saving deviation value, W1 is the total volume of water passing through the first flow meter on the ground floor of the building, W2 is the total volume of water passing through the second flow meter on the ground floor of the building, N is the number of overflows of the water tank on the ground floor of the building within a set time, R is the percentage of retained water corresponding to the water tank on the ground floor of the building, and L is the total volume of the water tank on the ground floor of the building.

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