CN218322961U - An indoor water recycling system - Google Patents

Abstract

The utility model discloses an indoor water recycling system, which comprises a water heater, a clean water tank, a water collection tank, a waste water tank, a toilet and a central control box. The water end and the water inlet pipe of the shower faucet are connected; the water pipe I connected to the water inlet of the two-position three-way solenoid valve I is provided with a temperature sensor connected to the central control box; the upper end of the water collection tank is provided with two input ports, the first The input end is the waste water inlet pipe, and the second input end is a detachable water filter cover; the output end of the water collection tank is connected to the inlet of the waste water lift pump through the water pump inlet pipe, and the outlet of the waste water lift pump is connected to the water inlet end of the waste water tank through the water delivery pipe III ; The waste water tank is equipped with a residual water drain pipe and a waste water outlet pipe. The utility model can recycle water resources from multiple different angles, and the waste water has a high degree of purification.

Description

An indoor water recycling system

technical field

The utility model relates to an indoor water recycling system, which belongs to the technical field of indoor sewage treatment and utilization.

Background technique

With the development of social economy and the improvement of people's quality of life, there are more and more water equipment in the family. For each water equipment, clean tap water is basically used in each family. However, the analysis of existing equipment shows that the sources of water for household water equipment can be roughly divided into two types: one is to use clean water resources for work, such as water for showers, water for washing dishes in dishwashers, etc.; The requirements for water resources are not high, such as water for flushing toilets. Therefore, it is necessary to design a water recycling system that can introduce shower waste water and domestic waste water into flush toilets and other water-using equipment that do not require high water quality.

Although there are various water-saving devices in the prior art, most of them only consider collecting the discharged waste water, and do not involve considering water saving from the source. This part of the water that flows directly into the sewer system causes waste of clean water resources at the source.

Therefore, how to realize the utilization of water resources from multiple angles is a technical problem to be solved.

Contents of the invention

Aiming at the deficiencies of the existing indoor wastewater treatment and utilization technology, the utility model provides an indoor water recycling system, and constructs a clear water utilization system and a wastewater utilization system, thereby realizing the recycling of water resources from multiple different angles , and further, filtration, disinfection, etc. are considered in the waste water utilization system.

The technical solution of the present utility model is: an indoor water recycling system, including a water heater 1, a clean water tank 7, a water collection tank 11, a waste water tank 18, a toilet 30 and a central control box 31, and the water heater 1 passes through a two-position three-way electromagnetic The valve Ⅰ4 is respectively connected with the first water inlet end of the clean water tank 7 and the water inlet pipe of the shower faucet 5; the water delivery pipe Ⅰ2 connected with the water inlet of the water heater 1 and the two-position three-way solenoid valve I4 is provided with a temperature control box connected with the central control box 31. Sensor 3; the upper end of the water collection tank 11 is provided with two input ends, the first input end is the waste water inlet pipe 10, and the second input end is a detachable water filter cover 12; the output end of the water collection tank 11 is connected to the waste water through the water pump inlet pipe 15 The inlet of the pump 16 and the outlet of the waste water lifting pump 16 are connected to the water inlet of the waste water tank 18 through the water delivery pipe III17; The valve 25 is connected to the drain pipe 26, the waste water outlet pipe 27 is connected to one water inlet of the two-position three-way solenoid valve II28, the other water inlet of the two-position three-way solenoid valve II28 is connected to the municipal water inlet pipe 9, and the two-position three-way solenoid valve II28 The water outlet of the water outlet is communicated with the water inlet pipe of the toilet 30 by the water delivery pipe IV 29.

The clean water tank 7 is provided with a second water inlet connected to the municipal water inlet pipe 9, and the clean water tank 7 is also provided with a water outlet for connecting with an external water supply pipe.

A primary filter plate 13 is installed on the top of the water collection tank 11, and the primary filter plate 13 is located below the waste water inlet pipe 10 and the detachable water filter cover plate 12.

The first ultrasonic water level sensor 14 is installed on the bottom of the primary filter plate 13, and the first ultrasonic water level sensor 14 is connected with the central control box 31.

The top of described waste water tank 18 is equipped with ultraviolet light 19; .

A second ultrasonic water level sensor 22 is installed on the bottom of the secondary filter plate 20 , and the second ultrasonic water level sensor 22 is connected with the central control box 31 .

The beneficial effects of the utility model are:

1. Recycle water resources from different angles. By building a clean water utilization system, this system can be used to collect clean water resources that do not meet the set temperature before showering; by building a waste water utilization system, it can be used to collect kitchen waste, shower waste water, etc.

Second, the wastewater purification degree is high. The system is equipped with two filter plates for coarse filtration and fine filtration to ensure that there is no excessive waste residue in the toilet water. At the same time, ultraviolet lamps are used to sterilize the wastewater to ensure that the stored wastewater will not breed too many bacteria and improve the living environment. The bottom section of the water collection tank and the waste water tank adopts a V-shaped design to ensure that the sediment and other residues in the waste water can be gathered in one place and discharged smoothly, so that the inside of the water tank can be kept clean and it is easy to wash and clean.

3. Intelligence, automation and high integration. The system uses a single-chip microcomputer as the control center. In the process of water use, different parameters can be used according to individual requirements to meet their respective use requirements, and the orderly operation of the entire equipment can be realized, and the intelligent indoor water cycle can be realized. Compared with traditional manual water-saving appliances, it is more intelligent and automatic.

4. Excellent space utilization. Compared with the direct external installation of traditional water-saving equipment, this system can adopt the method of setting water storage bodies in non-load-bearing walls such as toilets, which not only solves the problem of circulating water storage space, but also effectively reduces the occupation of housing space. Improve space utilization, and at the same time, it can be used as a backup water source for emergency use. It should be noted that this system can also adopt the way of external water storage according to the needs.

5. High water saving efficiency and great social benefits. The utility model uses clean water tanks and waste water tanks as control nodes. After being introduced into the production port, the water saving efficiency of the water-saving toilet can be increased from 11.13% to 44.54%, which is 300% higher than that of the water-saving toilet. When the product popularization rate reaches 30%, the annual water saving is 8.136 billion m ³ , which can save 9.426% of the national domestic water. With the improvement of product popularization rate, its water-saving effect is gradually improved, and the system has good social benefits.

6. High matching ratio, modular design, and economy. Water-saving toilets and other household appliances on the market can be connected to the system without modification or minor modification; because the product adopts a modular design and has no complicated parts and structures, it can be highly compatible with mainstream household equipment on the market and is economical. high sex.

Description of drawings

Fig. 1 is a schematic structural diagram of the utility model system;

Fig. 2 is the working flow diagram of the utility model system;

Fig. 3 is the processing flowchart of the utility model central control box;

The labels in the figure are: 1-water heater, 2-water delivery pipe Ⅰ, 3-temperature sensor, 4-two-position three-way solenoid valve Ⅰ, 5-shower faucet, 6-water delivery pipe Ⅱ, 7-clean water tank, 8-faucet , 9- municipal water inlet pipe, 10-waste water inlet pipe, 11-water collection tank, 12-removable water filter cover, 13-primary filter plate, 14-first ultrasonic water level sensor, 15-water pump inlet pipe, 16- Wastewater lifting pump, 17-water delivery pipeⅢ, 18-wastewater tank, 19-ultraviolet lamp, 20-secondary filter plate, 21-filter plate fixing frame, 22-second ultrasonic water level sensor, 23-overflow pipe, 24- Remaining water drainage pipe, 25-two-position two-way solenoid valve, 26-drainage pipe, 27-waste water outlet pipe, 28-two-position three-way solenoid valve II, 29-water delivery pipe IV, 30-toilet, 31-central control box .

detailed description

Below in conjunction with accompanying drawing and embodiment, the utility model is described further, but the content of the utility model is not limited to said range.

Embodiment 1: As shown in Figures 1-3, an indoor water recycling system includes a water heater 1, a clean water tank 7, a water collection tank 11, a waste water tank 18, a toilet 30 and a central control box 31, and the water heater 1 passes two The one-position three-way solenoid valve I4 is respectively connected with the first water inlet end of the clean water tank 7 and the water inlet pipe of the shower faucet 5; 31 connected to the temperature sensor 3; the upper end of the water collection tank 11 is provided with two input ends, the first input end is the waste water inlet pipe 10, and the second input end is a detachable water filter cover 12; the output end of the water collection tank 11 passes through the water pump inlet pipe 15 is connected to the inlet of the waste water lifting pump 16, and the outlet of the waste water lifting pump 16 is connected to the water inlet end of the waste water tank 18 through the water delivery pipe III17; The two-position solenoid valve 25 is connected to the drain pipe 26, the waste water outlet pipe 27 is connected to one water inlet of the two-position three-way solenoid valve II28, and the other water inlet of the two-position three-way solenoid valve II28 is connected to the municipal water inlet pipe 9, two-position three-way solenoid valve II28. The water outlet of the solenoid valve II28 is connected to the water inlet pipe of the toilet 30 through the water delivery pipe IV29.

Further, the clean water tank 7 is provided with a second water inlet port connected to the municipal water inlet pipe 9, and the clean water tank 7 is also provided with a water outlet port for connecting to an external water supply pipe, and is used for daily water intake through the faucet 8.

Further, a primary filter plate 13 is installed on the upper part of the water collection tank 11, and the primary filter plate 13 is located below the waste water inlet pipe 10 and the detachable water filter cover 12.

Further, a first ultrasonic water level sensor 14 is installed on the lower part of the primary filter plate 13 , and the first ultrasonic water level sensor 14 is connected to the central control box 31 .

Further, an ultraviolet lamp 19 is installed on the top of the waste water tank 18; a secondary filter plate 20 and an overflow hole are installed on the top of the waste water tank 18, and the secondary filter plate 20 is located at the water inlet and the overflow of the waste water tank 18 between holes.

Further, a second ultrasonic water level sensor 22 is installed on the lower part of the secondary filter plate 20 , and the second ultrasonic water level sensor 22 is connected with the central control box 31 .

Specifically, as shown in FIG. 1, a temperature sensor 3 is provided on the water delivery pipe I2 connecting the water outlet end of the water heater 1 with the water inlet end of the two-position three-way solenoid valve I4, and the two-position three-way solenoid valve I (one One water outlet of the water inlet and two outlets) 4 is connected to the first water inlet end of the clean water tank 7 through the water delivery pipe II6, and the other water outlet of the two-position three-way solenoid valve I (one inlet and two outlets) 4 is connected to the inlet of the shower faucet 5. The water pipe, the second water inlet end of the clean water tank 7 is connected to the municipal water inlet pipe 9, and the bottom end of the clean water tank 7 is provided with a water outlet for connecting to an external water supply pipe, and is used for daily life water intake through the faucet 8. One side of the upper part of the water collection tank 11 is connected to the kitchen waste water inlet pipe 10, and the top of the water collection tank 11 is equipped with a detachable water filter cover 12, and the surface of the detachable water filter cover 12 is provided with long holes. The upper part of the water collecting tank 11 is equipped with a primary filter plate 13, and the lower part of the primary filter plate 13 is equipped with a first ultrasonic water level sensor 14. Waste water lifting pump: the bottom of the water collection tank 11 is connected to the inlet of the waste water lifting pump 16 through the water pump inlet pipe 15, and the outlet of the waste water lifting pump 16 is connected to the waste water tank 18 through the water delivery pipe III17. Ultraviolet lamp 19 is installed on the top of described waste water tank 18, and secondary filter plate 20 is installed on the top of described waste water tank 18, and described secondary filter plate 20 is fixed by filter plate holder 21, and the bottom of described secondary filter plate 20 The second ultrasonic water level sensor 22 is installed, and the top of the waste water tank 18 is provided with an overflow hole to connect the overflow pipe 23, and the overflow pipe 23 is connected to the house sewer pipe, and the bottom surface section shape of the waste water tank 18 is designed to be V-shaped, The bottom side of the waste water tank 18 is equipped with a residual water drain pipe 24, and the residual water drain pipe 24 is connected to the drain pipe 26 through a two-position two-way solenoid valve 25, and the drain pipe 26 is connected to the house sewer pipe; The other side of the bottom of 18 is equipped with a waste water outlet pipe 27, and the waste water outlet pipe 27 is connected to a water inlet of the two-position three-way solenoid valve II (two in and one out) 28, and the two-position three-way solenoid valve II (two The other water inlet of the 28 is connected to the municipal water inlet pipe 9, and the water outlet of the two-position three-way solenoid valve II (two in and one out) 28 is connected to the water inlet pipe of the toilet 30 through the water delivery pipe IV29. The system uses clean water tank 7 and waste water tank 18 as control nodes to form an indoor water recycling network with clean water tank 7 as the indoor water supply center and waste water tank 18 as the waste water collection and storage center, as shown in Figure 2. The utility model is mainly used for the recycling of bathing waste water and domestic waste water. When the shower water does not reach the suitable temperature for bathing (such as 40°C), this part of water that directly flows into the sewer system in daily life will be collected through the pipeline system. As for the clean water tank 7, at ordinary times, the clean water tank 7 can also introduce municipal water as a domestic emergency water storage body to form a clean water utilization system; when the incoming water from the shower reaches the set temperature of the bathing water, the waste water after bathing will flow into the water collection tank 11 , the domestic waste water also flows into the water collection tank 11 through the kitchen waste water inlet pipe 10, and is pumped into the waste water tank 18 by the waste water lifting pump 16 through the water delivery pipe III 17 through the filter device, and is used for daily flushing of the toilet 30, forming waste water utilization system. As can be designed, the volume of the clear water tank 7 is 200L, and the volume of the waste water tank 18 is 350L.

In the above, the temperature sensor 3, the first ultrasonic water level sensor 14 and the second ultrasonic water level sensor 22 are connected to the central control box 31 through a circuit, and the central control box 31 is connected to the two-position three-way solenoid valve I (one into two Out) 4. Waste water lifting pump 16, two-position two-way solenoid valve 25 and two-position three-way solenoid valve II (two in and one out) 28. Referring to Fig. 3, the optional control process is provided as follows: all control processes of the utility model device are realized by single-chip microcomputer technology, and the control system is divided into three control subsystems, which are respectively used to control the switches of each solenoid valve and waste water lift pump . The temperature control system receives the input signal from the temperature sensor 3 and judges whether the temperature of the shower water reaches the preset temperature according to the judgment formula, and the output signal controls the water passage of the two-position three-way solenoid valve I4. The water level control system 1 receives the water level signal input by the first ultrasonic water level sensor 14, judges according to the expression whether the water level in the waste water collection tank reaches the preset water level H1, and outputs the signal to control the switch of the waste water lift pump 16, so as to avoid the pump idling and damage the internal machinery , also reduces the power consumption of the water pump through automatic adjustment. The water level control system 2 receives the water level signal input by the second ultrasonic water level sensor 22, judges according to the expression whether the water level in the waste water collection tank reaches the preset water level H2 and H3, and outputs the signal to control the switch and the two-position two-way solenoid valve 25. The water passage of the three-way solenoid valve II28.

Based on the structure of this application, it has the following functions:

One, shower waste water imports into clean water tank 7 or waste water tank 18. The shower water is output by the water heater 1, and is connected to the two-position three-way solenoid valve I4 through the water delivery pipe I2, and the temperature sensor 3 is installed inside the bottom end of the water delivery pipe I2 as the opening and closing conditions of the two-position three-way solenoid valve I4 to realize preheating water Diversion with shower waste water. When the water temperature was lower than the water temperature for bathing, the preheated water was collected into the clean water tank 7, and when the water temperature reached the bath temperature, the waste water after the shower was collected into the water collection tank 11 on the toilet floor. The top of the clean water tank 7 is connected to the municipal water inlet pipe 9 to introduce tap water, and at the same time collects shower preheated clean water, which can be used as a backup water source for indoor emergencies, and can store domestic water for one day. The tank remains full. The bottom end of the clean water tank 7 is connected to the tap 8, which is used for daily life water intake.

2. The domestic waste water is collected into the waste water tank 18. Shower waste water and laundry waste water directly flow into the water collection tank 11 installed under the ground, and the waste water produced by the kitchen and toilet water is collected into the water collection tank 11 through the kitchen waste water inlet pipe 10 . A detachable water filter cover 12 is installed on the top of the water collection tank 11, and the surface of the detachable water filter 12 is provided with long holes, which are used to replace the original ground and can pass through water smoothly. A primary filter plate 13 is installed on the top of the water collecting tank 11 for primary filtration, and the large particles of impurities and dirt are preliminarily filtered. The first ultrasonic water level sensor 14 is installed on the top of the water collection tank 11 to collect the water level signal, and the signal is sent to the central control box 31, and the central control box 31 judges and controls the waste water lifting pump 16 according to the water level signal. The preset water level H1 of the water collection tank 11 is used as the lowest water level for the waste water lift pump 16 to operate. When the water level is higher than the preset water level H1, the waste water lift pump 16 operates. When the water level is lower than the preset water level H1, the waste water lift pump 16 is closed to prevent burning out , to achieve automatic control. The waste water lifting pump 16 adopts a special domestic waste water lifting pump, which has the characteristics of remarkable energy saving effect, low noise, reduced winding, not easy to block and automatic control. The cross-sectional shape of the bottom surface of the water collection tank (11) is designed to be V-shaped, so as to ensure that the sediment and other residues in the waste water can gather in one place and be discharged smoothly.

3. The waste water is lifted to the waste water tank 18 by the waste water lifting pump 16 for treatment. The waste water lift pump 16 transports the primary filtered water to the waste water tank 18 through the water delivery pipe III17. The top of the waste water tank 18 is equipped with an ultraviolet lamp for disinfection of waste water, preventing bacteria from growing in large numbers and improving water quality. The upper part of the waste water tank 18 is provided with two The secondary filter plate 20, the filtered waste water naturally falls into the waste water tank 18 for storage, the top of the waste water tank 18 is provided with a second ultrasonic water level sensor 22, and the left side of the bottom of the waste water tank 18 is equipped with a residual water drain pipe 24, so The remaining water drain pipe 24 is connected to the drain pipe 26 through the two-position two-way solenoid valve 25, and the drain pipe 26 is connected to the house sewer pipe. The second ultrasonic water level sensor 22 collects the water level signal in the waste water tank 18, and the signal is sent to the central control box 31, and the central control box 31 judges and controls the two-position two-way solenoid valve 25 according to the water level signal. When the high water level H2 is set, the two-position two-way solenoid valve 25 is opened to discharge excess waste water, prevent the waste water from overflowing and backflow, and discharge impurities at the bottom in time. When the water level is lower than the preset high water level H2, the two-position two-way solenoid valve Valve 25 is closed, continues to store water. The outside of the top of the waste water tank 18 is connected to the sewer pipe of the house through the overflow pipe 23, which is used to prevent the waste water tank 18 from overflowing and backflow, and can discharge the water-insoluble matter of the upper part of the waste water. The upper part of the waste water tank 18 is set as a movable top cover, which can be opened and closed freely, and can be used for regular injection of aluminum sulfate water purifying agent, which plays a role of flocculation and precipitates impurities in the water so as to facilitate discharge. The bottom of the waste water tank 18 is designed in a V shape, which is used to concentrate and precipitate impurities and dirt. Both the primary filter plate 13 and the secondary filter plate 20 are detachable structures, which can be taken out and cleaned regularly to improve the service life and filtration efficiency of the filter plates.

Four, toilet 30 water. The water supply of the toilet 30 includes the water supply of the municipal water inlet pipe 9 and the water supply of the waste water tank 18 . The second ultrasonic water level sensor 22 collects the water level signal of the waste water tank 18, and sends the signal to the central control box 31. The central control box 31 judges and controls the two-position three-way solenoid valve II 28 according to the water level signal. When the water level exceeds the preset When the water level is low H3, open the connection channel between the waste water outlet pipe 27 of the two-position three-way solenoid valve II28 and the water delivery pipe IV29, that is, use the purified waste water for the toilet 30 water, when the water level is lower than the preset low water level H3, open The municipal water inlet pipe 9 of the two-position three-way electromagnetic valve (two into one out) II28 and the connection channel of the water delivery pipe IV29 are used for the toilet 30 water with the municipal water inlet. The low water level H3 ensures the water pressure in the waste water tank, so that the purified waste water flows into the toilet 30 smoothly. Since the water inlet valve is installed in the flushing water tank of the modern toilet, the water inlet can be automatically controlled to ensure that it will not overflow, so there is no need for an external valve to control the water intake of the flushing water tank of the toilet.

Further, it is given as follows:

The national standard GB 6952-2005 stipulates: the water consumption of ordinary toilets is ≤8 liters, and the water consumption of water-saving toilets is ≤6 liters; most of the toilets in real life are water-saving toilets. Assuming that each person urinates 4-6 times a day and defecates 1-3 times, a normal person goes to the toilet ≤ 9 times a day. Since the number of times of going to the toilet is too large, multiply the safety factor by 1.2, so a three-mouth The water used for flushing the toilet every day is:

Ordinary toilets can use up to 1 day: (4*6+3*8)*1.2*3=172.8L;

The water-saving toilet can use up to 1 day: (3*6+3*6)*1.2*3=129.6L;

According to the data, the water consumption per person per bath is about: V _individual = 60L; considering the differences in water demand and water-saving awareness of different groups of people, multiply by a factor of 1.2. Daily bathing water for a family of three: 60*3*1.2=216L.

Water-saving toilet plus bathing water for one day: 129.6+216=345.6L;

Ordinary toilet plus bathing water for one day: 172.8+216=388.8L;

Therefore, the water-saving toilet saves water one day compared with the ordinary toilet: 388.8-345.6=43.2L.

Compared with ordinary toilets, this product saves water a day: 388.8-216 = 172.8L. What participate in calculation this time and consider is after adopting the structure of the present application, toilet (30) all adopts the water of waste water tank 18.

Therefore, the water-saving efficiency of this product is higher than that of the water-saving toilet: (172.8-43.2)/43.2*100%=300%.

From the above, it can be seen that in a family of three, this product saves 172.8L of water a day compared with ordinary toilets, and the annual water saving of a family is: (172.8*365)/1000=63.072m^3.

According to the "2019 Hurun Wealth Report", it can be calculated that the number of Chinese families is 430 million. If the popularization rate of the product reaches 1%, the national annual water saving: 63.072*4.3*10 ⁸ *1%=271.2 million m ³ .

According to the 2020 China Water Resources Bulletin issued by the Ministry of Water Resources, domestic domestic water consumption in 2020 will be 86.31 billion m ³ . When it reaches 30%, 8.136 billion m ³ of water can be saved every year, which can save 9.426% of national domestic water. With the improvement of product popularization rate, its water-saving effect will gradually increase, so this product has good social benefits.

It should be noted that in this application, relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between.

The specific implementation of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned implementation. Various changes are made.

Claims (6)

1. An indoor water recycling system, which comprises a water heater (1), a clean water tank (7), a water collecting tank (11), a waste water tank (18), a closestool (30) and a central control box (31), and is characterized in that: the water heater (1) is respectively communicated with a first water inlet end of the clear water tank (7) and a water inlet pipe of the shower faucet (5) through a two-position three-way electromagnetic valve I (4); a temperature sensor (3) connected with a central control box (31) is arranged on a water delivery pipe I (2) communicated with a water inlet of a two-position three-way electromagnetic valve I (4) of the water heater (1); the upper end of the water collecting tank (11) is provided with two input ends, the first input end is a wastewater inlet pipe (10), and the second input end is a detachable water filtering cover plate (12); the output end of the water collecting tank (11) is communicated with the inlet of a wastewater lifting pump (16) through a water inlet pipe (15) of a water pump, and the outlet of the wastewater lifting pump (16) is communicated with the water inlet end of a wastewater tank (18) through a water conveying pipe III (17); the waste water tank (18) is provided with a residual water drain pipe (24) and a waste water outlet pipe (27), the residual water drain pipe (24) is communicated with a drain pipe (26) through a two-position two-way electromagnetic valve (25), the waste water outlet pipe (27) is connected with a water inlet of a two-position three-way electromagnetic valve II (28), the other water inlet of the two-position three-way electromagnetic valve II (28) is connected with a municipal water inlet pipe (9), and a water outlet of the two-position three-way electromagnetic valve II (28) is communicated with a water inlet pipe of the closestool (30) through a water delivery pipe IV (29).

2. The indoor water recycling system according to claim 1, wherein: the clean water tank (7) is provided with a second water inlet end communicated with a municipal water inlet pipe (9), and the clean water tank (7) is also provided with a water outlet end communicated with an external water supply pipe.

3. The indoor water recycling system of claim 2, wherein: the water collecting tank (11) is provided with a first filtering plate (13) at the upper part, and the first filtering plate (13) is positioned below the wastewater inlet pipe (10) and the detachable water filtering cover plate (12).

4. The indoor water recycling system of claim 3, wherein: and a first ultrasonic water level sensor (14) is arranged at the lower part of the primary filter plate (13), and the first ultrasonic water level sensor (14) is connected with a central control box (31).

5. The indoor water recycling system according to claim 1, wherein: an ultraviolet lamp (19) is arranged at the top of the waste water tank (18); the upper portion of waste water case (18) installation secondary filter (20), overflow hole, and secondary filter (20) are located between the end of intaking and the overflow hole of waste water case (18).

6. The indoor water recycling system of claim 5, wherein: and a second ultrasonic water level sensor (22) is arranged at the lower part of the secondary filter plate (20), and the second ultrasonic water level sensor (22) is connected with a central control box (31).

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