CN114319509B - Direct drinking water wastewater and rainwater collecting, recycling and zero-emission system and method - Google Patents
Direct drinking water wastewater and rainwater collecting, recycling and zero-emission system and method Download PDFInfo
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- CN114319509B CN114319509B CN202111630819.2A CN202111630819A CN114319509B CN 114319509 B CN114319509 B CN 114319509B CN 202111630819 A CN202111630819 A CN 202111630819A CN 114319509 B CN114319509 B CN 114319509B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 295
- 239000003651 drinking water Substances 0.000 title claims abstract description 83
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 83
- 238000004064 recycling Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 165
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000004891 communication Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000035622 drinking Effects 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Abstract
The invention provides a zero discharge system and a zero discharge method for collecting, recycling and reusing direct drinking water and rainwater, wherein the system comprises a wastewater tank, a temporary wastewater tank and a water collecting tank, wherein the direct drinking water wastewater is simultaneously connected to the wastewater tank and the temporary wastewater tank through a three-way pipeline, a wastewater pipe is further connected between the wastewater tank and the temporary wastewater tank, the wastewater tank and the water collecting tank are connected through a wastewater outlet pipe, the water collecting tank is further provided with a discharge pipe, and the tail end of the discharge pipe is connected with a valve head; a rain water tank is also arranged above the wastewater tank. The method is that when raining, direct drinking water and wastewater in a wastewater tank are pumped into a temporary wastewater tank, a rainwater tank top cover and the wastewater tank top cover are opened simultaneously, after the liquid level in the wastewater tank reaches the position of an upper limit liquid level alarm, the upper limit liquid level alarm sends out a signal, the wastewater tank top cover is closed, the rainwater tank continues to receive rainwater, and when the rainwater tank is full, the rainwater flows out from an overflow port. The invention realizes the synchronous coordination of rainwater collection and direct drinking water wastewater collection.
Description
Technical Field
The invention relates to a zero-emission system and a zero-emission method for collecting, recycling and reusing direct drinking water and rainwater, and belongs to the technical field of water recycling.
Background
The direct drinking water is usually pure water which is obtained by subjecting tap water to a series of purification treatments, has few tiny particles of impurities and few pollutant components, and the process can also be understood as purifying water, and needs to be reserved for dissolving the concentrated water containing impurities, and is called direct drinking water wastewater in the part, and is obtained directly for preparing direct drinking water. The volume ratio of the direct drinking water wastewater to the direct drinking water is 1:1. The wastewater directly drinking water cannot be directly discharged to the municipal sewer line.
At present, the market mainly researches how to manufacture direct drinking water, but the treatment of the direct drinking water is lack of attention. However, the direct drinking water wastewater has a large volume, if not properly treated, and a certain potential long-period hazard is caused to natural water.
Because the direct drinking water wastewater has high pollutant particle content, the direct drinking water wastewater is generally required to be treated in a centralized way and is used for water for ornamental fish, water for water culture landscapes and the like. However, the water consumption of ornamental fish and water culture landscapes is very small, direct drinking water wastewater on the market cannot be completely absorbed and treated, and how to open up a new utilization way of the direct drinking water wastewater is a problem to be solved urgently in the industry and is a difficult problem.
Disclosure of Invention
In order to solve the technical problems, the invention provides a direct drinking water wastewater and rainwater collecting, recycling and reusing zero-emission system and method, and the specific technical scheme is as follows:
the direct drinking water wastewater and rainwater collecting, recycling and zero-emission system comprises a wastewater tank, a temporary wastewater tank and a water collecting tank, wherein the direct drinking water wastewater is simultaneously connected to the wastewater tank and the temporary wastewater tank through a three-way pipeline, a wastewater inlet three-way valve is arranged at a branching position of the three-way pipeline, a wastewater pipe is further connected between the wastewater tank and the temporary wastewater tank, and a water pump is arranged on the wastewater pipe;
the wastewater tank is connected with the water collecting tank through a wastewater outlet pipe, the water collecting tank is further provided with a discharge pipe, the wastewater outlet pipe is further connected to the discharge pipe through a wastewater guide pipe, and the tail end of the discharge pipe is connected with a valve head;
a rain water tank is further arranged above the waste water tank, the rain water tank is isolated from the waste water tank through a waste water tank top cover, a rain water tank top cover is arranged at the top of the rain water tank, a rain water sensor is arranged above the rain water tank top cover, the rain water sensor is connected with a switch of the rain water tank top cover in a control manner, and when the rain water sensor senses rain water, the switch of the rain water tank top cover is started to open the top cover;
the waste water pipe, the waste water outlet pipe, the waste water conduit and the discharge pipe are all provided with valves, the valves on the waste water outlet pipe are positioned on the downstream side of the communication position of the waste water outlet pipe and the waste water conduit, and the discharge pipe is provided with 2 valves which are respectively positioned on the upstream side and the downstream side of the communication position of the waste water conduit and the discharge pipe.
Further, the pressure reducing valve is arranged on the upstream of the valve head, water in the water collecting tank is used for water loading of a sprinkler or a fire truck, after the water receiving valve head of the sprinkler or the fire truck is connected with the valve of the discharge pipe, the pressure reducing valve is screwed, the water pressure is increased, and water in the water collecting tank rapidly enters the sprinkler or the fire truck water tank.
Furthermore, an overflow port is formed in the top of the side wall of the rain water tank.
Further, the wastewater tank, the temporary wastewater tank and the water collecting tank are respectively provided with an upper limit liquid level alarm at the positions close to the top, and a lower limit liquid level alarm at the positions close to the bottom.
The method for recycling the zero discharge system based on direct drinking water wastewater and rainwater collection and recycling comprises the following steps:
step 1: establishing a direct drinking water wastewater and rainwater collecting, circulating and recycling zero-emission system: building a wastewater tank, a temporary wastewater tank and a water collecting tank, attaching ceramic tiles on the inner walls of the wastewater tank, the temporary wastewater tank and the water collecting tank,
step 2: working state in non-rainy days: closing the rain water tank top cover and the waste water tank top cover, and enabling the direct drinking water and the waste water to enter the waste water tank through the waste water inlet three-way valve, wherein at the moment, the direct drinking water and the temporary waste water tank are in a closed state, and valves of the waste water pipe, the waste water outlet pipe, the waste water conduit and the discharge pipe are all in a closed state; at the moment, if the direct drinking water waste water is needed to be used, the water inlet pipe of the sprinkler or the fire engine is connected with the valve head, the valve at the downstream side of the junction of the waste water outlet pipe, the waste water conduit and the discharge pipe is opened, the pressure reducing valve is screwed, the pressure is increased, and the direct drinking water waste water in the waste water tank is pressed into the water tank of the sprinkler or the fire engine;
step 3: when the liquid level in the wastewater tank reaches the position of the upper limit liquid level alarm, the upper limit liquid level alarm sends out a signal, the system executes to open two valves on the wastewater outlet pipe, so that direct drinking water wastewater in the wastewater tank flows into the water collecting tank, and when the direct drinking water wastewater in the water collecting tank also reaches the position of the upper limit liquid level alarm, the water pump is started to pump the direct drinking water wastewater in the wastewater tank into the temporary wastewater tank;
step 4: working state in rainy days: when the rainwater sensor detects rain, a water pump is started to pump direct drinking water and wastewater in the wastewater tank into the temporary wastewater tank, the top cover of the wastewater tank and the top cover of the wastewater tank are simultaneously opened, after the liquid level in the wastewater tank reaches the position of the upper limit liquid level alarm, the upper limit liquid level alarm sends out a signal, the top cover of the wastewater tank is closed, the rainwater tank continues to receive rainwater, and when the rainwater tank is full, the rainwater flows out from the overflow port;
step 5: when water is used, directly drinking water and wastewater in the wastewater tank are firstly used, when the liquid level in the wastewater tank is lower than an upper limit liquid level alarm, firstly, a top cover of the wastewater tank is opened, and rainwater enters the wastewater tank; in the rainwater discharging process, once the liquid level reaches the upper limit liquid level alarm, the top cover of the wastewater tank is immediately closed, after the rainwater in the rainwater tank is discharged, the wastewater inlet three-way valve is closed to feed water into the temporary wastewater tank, direct drinking water wastewater is drained into the wastewater tank, the water pump is started, and the direct drinking water wastewater in the temporary wastewater tank is pumped into the wastewater tank.
Further, in non-rainwater weather, after the liquid level in the wastewater tank reaches the position of the upper limit liquid level alarm, a valve and a water pump on the wastewater outlet pipe are started, and direct drinking water wastewater in the wastewater tank is pumped into the water collecting tank.
The beneficial effects of the invention are as follows:
the invention provides a new application idea for the direct drinking water waste water, avoids the direct drinking water waste water being directly discharged into river, lake or farmland soil, is not used for water planting landscapes, has little water consumption, is severely limited by regions, such as markets, parks and other large public places, is provided with the direct drinking water machine, and the generated direct drinking water waste water needs to be transferred to the water planting places, so that the transfer of the direct drinking water cost generates great economic cost waste due to the interval of geographic positions in the middle. The invention can be built near the direct drinking machine, when the direct drinking machine is positioned in a building, the system is built outside the building, when the direct drinking machine is positioned in an outdoor place such as a park, the system can be built underground, the rain water pool top cover is arranged above the ground, the valve head is arranged below the well cover, and when the system is used, the well cover is removed.
According to the invention, the wastewater pool, the temporary wastewater pool and the rainwater pool are arranged to realize the turnover of rainwater and direct drinking water wastewater, so that the rainwater and direct drinking water wastewater can be collected without error, and the rainwater and direct drinking water wastewater can be synchronously coordinated.
Drawings
Figure 1 is a schematic view of the present invention,
in the figure: 1-wastewater tank, 2-wastewater tank top cover, 3-rain sensor, 4-wastewater inlet three-way valve, 5-temporary wastewater tank, 6-wastewater pipe, 7-water pump, 8-wastewater outlet pipe, 9-wastewater conduit, 10-discharge pipe, 11-water collecting tank and 12-rain water tank.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
As shown in fig. 1, the direct drinking water wastewater and rainwater collecting, recycling and recycling zero-emission system comprises a wastewater tank 1, a temporary wastewater tank 5 and a water collecting tank 11, wherein the direct drinking water wastewater is simultaneously connected to the wastewater tank 1 and the temporary wastewater tank 5 through a three-way pipeline, a wastewater inlet three-way valve 4 is arranged at a branching position of the three-way pipeline, a wastewater pipe 6 is further connected between the wastewater tank 1 and the temporary wastewater tank 5, and the wastewater pipe 6 is provided with a water pump 7; the water pump 7 can pump the direct drinking water wastewater in the wastewater tank 1 into a temporary wastewater tank, and can pump the direct drinking water wastewater in the temporary wastewater tank 5 into the wastewater tank 1, so that the temporary storage and discharge of the direct drinking water wastewater are realized.
The wastewater tank 1 and the water collecting tank 11 are connected through a wastewater outlet pipe 8, the water collecting tank 11 is further provided with a discharge pipe 10, the wastewater outlet pipe 8 is further connected to the discharge pipe 10 through a wastewater guide pipe 9, and the tail end of the discharge pipe 10 is connected with a valve head; the valve head is used for being connected with water pipes of the sprinkler and the fire engine, and pumping the direct drinking water wastewater or rainwater in the system to water tanks of the sprinkler and the fire engine.
A rain water tank 12 is further arranged above the wastewater tank 1, the rain water tank 12 is isolated from the wastewater tank 1 through a wastewater tank top cover 2, a rain water tank top cover is arranged at the top of the rain water tank 12, a rain water sensor 3 is arranged above the rain water tank top cover, the rain water sensor 3 is connected with a switch control of the rain water tank top cover, and when the rain water sensor 3 senses rain water, the switch of the rain water tank top cover is started to open the top cover; in order to enlarge the water receiving area, the top of the rain water tank can be provided with a flaring shape, the rain water tank top cover can be provided with a revolving door, the rain water tank top cover is rotated upwards by 90 degrees and then turned outwards until being hung outside the rain water tank, or an outer wing for supporting the rain water tank top cover is arranged outside the rain water tank, and after the rain water tank top cover is turned upwards, the rain water tank top cover is turned outwards until being placed on the outer wing. When the rainwater is over, the roof of the rainwater pond is turned over to cover the top of the rainwater pond.
The waste water pipe 6, the waste water outlet pipe 8, the waste water conduit 9 and the discharge pipe 10 are all provided with valves, the valves on the waste water outlet pipe 8 are positioned on the downstream side of the communication position of the waste water outlet pipe 8 and the waste water conduit 9, and the discharge pipe 10 is provided with 2 valves which are respectively positioned on the upstream side and the downstream side of the communication position of the waste water conduit 9 and the discharge pipe 10. And the waste water outlet pipe 8 is also provided with a water pump which is used for pumping the water in the waste water tank to the water collecting tank, and when the water pump pumps, a tee joint between the waste water outlet pipe 8 and the waste water conduit 9 is in a state of closing the waste water conduit 9.
The upstream of the valve head is provided with a pressure reducing valve, water in the water collecting tank 11 is used for water filling of a sprinkler or a fire engine, and after the water receiving valve head of the sprinkler or the fire engine is connected with the valve of the discharge pipe 10, the pressure reducing valve is screwed, the water pressure is increased, and the water in the water collecting tank 11 rapidly enters the sprinkler or the fire engine water tank.
An overflow port is arranged at the top of the side wall of the rain water tank 12. The overflow port is used for overflowing rainwater after the rainwater pool is full.
The wastewater tank 1, the temporary wastewater tank 5 and the water collecting tank 11 are respectively provided with an upper limit liquid level alarm at a position close to the top 1/3, and a lower limit liquid level alarm at a position close to the bottom 1/3.
The method for recycling the zero discharge system based on direct drinking water wastewater and rainwater collection and recycling comprises the following steps:
step 1: establishing a direct drinking water wastewater and rainwater collecting, circulating and recycling zero-emission system: building a wastewater tank 1, a temporary wastewater tank 5 and a water collecting tank 11, attaching ceramic tiles on the inner walls of the wastewater tank 1, the temporary wastewater tank 5 and the water collecting tank 11,
step 2: working state in non-rainy days: the rain water tank top cover and the waste water tank top cover are closed, the direct drinking water and the waste water enter the waste water tank 1 through the waste water inlet three-way valve, at the moment, the direct drinking water and the temporary waste water tank are in a closed state, and valves of the waste water pipe 6, the waste water outlet pipe 8, the waste water conduit 9 and the discharge pipe 10 are all in a closed state; at the moment, if the direct drinking water waste water is needed to be used, the water inlet pipe of the sprinkler or the fire engine is connected with the valve head, the valve at the downstream side of the junction of the waste water outlet pipe 8, the waste water conduit 9 and the discharge pipe 10 is opened, the pressure reducing valve is screwed, the pressure is increased, and the direct drinking water waste water in the waste water tank 1 is pressed into the water tank of the sprinkler or the fire engine;
step 3: when the liquid level in the wastewater tank 1 reaches the position of the upper limit liquid level alarm, the upper limit liquid level alarm sends out a signal, the system executes to open two valves on the wastewater outlet pipe 8, so that the direct drinking wastewater in the wastewater tank 1 flows into the water collecting tank 11, and when the direct drinking wastewater in the water collecting tank 11 also reaches the position of the upper limit liquid level alarm, the water pump 7 is started to pump the direct drinking wastewater in the wastewater tank 1 into the temporary wastewater tank 5;
step 4: working state in rainy days: when the rain sensor detects rain, the water pump 7 is started to pump the direct drinking water wastewater in the wastewater tank 1 into the temporary wastewater tank 5, the top cover of the wastewater tank and the top cover of the wastewater tank are simultaneously opened, after the liquid level in the wastewater tank 1 reaches the position of the upper limit liquid level alarm, the upper limit liquid level alarm sends out a signal, the top cover of the wastewater tank is closed, the rainwater tank continuously receives rainwater, and when the rainwater tank is full, the rainwater flows out from the overflow port;
step 5: when water is used, directly drinking water and waste water in the waste water tank 1 are firstly used, and when the liquid level in the waste water tank 1 is lower than an upper limit liquid level alarm, firstly, a waste water tank top cover 2 is opened, and rainwater enters the waste water tank 1; in the rainwater discharging process, once the liquid level reaches the upper limit liquid level alarm, the wastewater tank top cover 2 is immediately closed, after the rainwater in the rainwater tank 12 is discharged, the wastewater inlet three-way valve 4 closes the water inlet towards the temporary wastewater tank 5, direct drinking water wastewater is drained into the wastewater tank 1, the water pump 7 is started, and the direct drinking water wastewater in the temporary wastewater tank 5 is pumped into the wastewater tank 1.
And when the water is not in rainwater weather and the liquid level in the wastewater tank 1 reaches the position of the upper limit liquid level alarm, a valve and a water pump on the wastewater outlet pipe 8 are started, and direct drinking water and wastewater in the wastewater tank 1 are pumped into the water collecting tank 11.
The water collecting tank also has the function of temporarily storing water, when the liquid level in the wastewater tank reaches the upper limit liquid level, the water in the wastewater tank is pumped into the water collecting tank, when water is used, the water in the wastewater tank is used firstly, then the water in the temporary wastewater tank is used, and finally the water in the water collecting tank is used to obtain the water, so that the comprehensive recovery of the water is realized, the use problem of direct drinking water cost is solved, and the water collecting tank has great social significance.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (5)
1. A direct drinking water wastewater and rainwater collecting, recycling and zero-emission method is characterized in that: the method is based on a direct drinking water wastewater and rainwater collecting, circulating and recycling zero-emission system, the system comprises a wastewater tank (1), a temporary wastewater tank (5) and a water collecting tank (11), the direct drinking water wastewater is simultaneously connected to the wastewater tank (1) and the temporary wastewater tank (5) through a three-way pipeline, a wastewater inlet three-way valve (4) is arranged at a branching position of the three-way pipeline, a wastewater pipe (6) is further connected between the wastewater tank (1) and the temporary wastewater tank (5), and the wastewater pipe (6) is provided with a water pump (7);
the wastewater treatment device is characterized in that the wastewater tank (1) and the water collecting tank (11) are connected through a wastewater outlet pipe (8), the water collecting tank (11) is further provided with a discharge pipe (10), the wastewater outlet pipe (8) is further connected to the discharge pipe (10) through a wastewater conduit (9), and the tail end of the discharge pipe (10) is connected with a valve head;
a rain water tank (12) is further arranged above the wastewater tank (1), the rain water tank (12) is isolated from the wastewater tank (1) through a wastewater tank top cover (2), a rain water tank top cover is arranged at the top of the rain water tank (12), a rain water sensor (3) is arranged above the rain water tank top cover, the rain water sensor (3) is connected with a switch of the rain water tank top cover in a control manner, and when the rain water sensor (3) senses rain water, the switch of the rain water tank top cover is started to open the top cover;
the waste water pipe (6), the waste water outlet pipe (8), the waste water conduit (9) and the discharge pipe (10) are all provided with valves, the valves on the waste water outlet pipe (8) are positioned on the downstream side of the communication position of the waste water outlet pipe (8) and the waste water conduit (9), the discharge pipe (10) is provided with 2 valves, and the valves are respectively positioned on the upstream side and the downstream side of the communication position of the waste water conduit (9) and the discharge pipe (10);
the direct drinking water wastewater and rainwater collecting, recycling and zero-emission method comprises the following steps of:
when working in a non-rainy day:
closing the rain water tank top cover and the waste water tank top cover, wherein the direct drinking water and the waste water enter the waste water tank (1) through the waste water inlet three-way valve, at the moment, the direct drinking water and the temporary waste water tank are in a closed state, and valves of the waste water pipe (6), the waste water outlet pipe (8), the waste water conduit (9) and the discharge pipe (10) are all in a closed state; at the moment, if the direct drinking water waste water is needed to be used, the water inlet pipe of the sprinkler or the fire engine is connected with the valve head, the waste water outlet pipe (8), the waste water conduit (9) and the valve at the downstream side of the junction of the waste water conduit (9) and the discharge pipe (10) are opened, the pressure reducing valve is screwed, the pressure is increased, and the direct drinking water waste water in the waste water tank (1) is pressed into the water tank of the sprinkler or the fire engine;
when the liquid level in the wastewater tank (1) reaches the position of the upper limit liquid level alarm, the upper limit liquid level alarm sends out a signal, the system executes to open two valves on the wastewater outlet pipe (8) to enable the direct drinking water wastewater in the wastewater tank (1) to flow into the water collecting tank (11), and when the direct drinking water wastewater in the water collecting tank (11) also reaches the position of the upper limit liquid level alarm, the water pump (7) is started to pump the direct drinking water wastewater in the wastewater tank (1) into the temporary wastewater tank (5);
when working state in rainy days:
when the rain sensor detects rain, a water pump (7) is started to pump direct drinking water wastewater in the wastewater tank (1) into a temporary wastewater tank (5), a rainwater tank top cover and the wastewater tank top cover are simultaneously opened, after the liquid level in the wastewater tank (1) reaches the position of an upper limit liquid level alarm, the upper limit liquid level alarm sends out a signal, the wastewater tank top cover is closed, the rainwater tank continues to receive rainwater, and when the rainwater tank is full, the rainwater flows out from an overflow port;
when water is used, directly drinking water and waste water in the waste water tank (1) are firstly used, and when the liquid level in the waste water tank (1) is lower than an upper limit liquid level alarm, firstly, a top cover (2) of the waste water tank is opened, and rainwater enters the waste water tank (1); in the rainwater discharging process, once the liquid level reaches the upper limit liquid level alarm, the wastewater tank top cover (2) is immediately closed, after the rainwater in the rainwater tank (12) is discharged, the wastewater inlet three-way valve (4) closes water inlet in the temporary wastewater tank (5), direct drinking water wastewater is drained into the wastewater tank (1), the water pump (7) is started, and the direct drinking water wastewater in the temporary wastewater tank (5) is pumped into the wastewater tank (1).
2. The zero discharge method for collecting, recycling and reusing direct drinking water wastewater and rainwater according to claim 1, which is characterized in that: the upstream of the valve head is provided with a pressure reducing valve, water in the water collecting tank (11) is used for water loading of a sprinkler or a fire engine, and after the water receiving valve head of the sprinkler or the fire engine is connected with a valve of the discharge pipe (10), the pressure reducing valve is screwed, so that the water pressure is increased, and the water in the water collecting tank (11) rapidly enters the sprinkler or the fire engine water tank.
3. The zero discharge method for collecting, recycling and reusing direct drinking water wastewater and rainwater according to claim 1, which is characterized in that: an overflow port is formed in the top of the side wall of the rain water tank (12).
4. The zero discharge method for collecting, recycling and reusing direct drinking water wastewater and rainwater according to claim 1, which is characterized in that: the waste water tank (1), the temporary waste water tank (5) and the water collecting tank (11) are respectively provided with an upper limit liquid level alarm at the positions close to the top, and a lower limit liquid level alarm at the positions close to the bottom.
5. The zero discharge method for collecting, recycling and reusing direct drinking water wastewater and rainwater according to claim 1, which is characterized in that: when the water level in the wastewater tank (1) reaches the position of the upper limit liquid level alarm in non-rainwater weather, a valve and a water pump on the wastewater outlet pipe (8) are started, and direct drinking water wastewater in the wastewater tank (1) is pumped into the water collecting tank (11).
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