Rainwater recycling system for thermal power plant

Abstract

The utility model discloses a rainwater recycling system for a thermal power plant. At present, drained rainwater is simply filtered through a grate, many impurities are doped in the rainwater due to the filtering, and meanwhile the rainwater cannot be utilized after being treated. The system comprises a plurality of rainwater tanks, a rainwater collecting tank and an emergency water tank, rainwater in the rainwater tanks is collected to the rainwater collecting tank through a water outlet pipe, the rainwater collecting tank is communicated with the emergency water tank through a water pumping pipe, water in the emergency water tank is pumped into a sedimentation tank through a floating dock pump, and the sedimentation tank is communicated with the emergency water tank. And water in the sedimentation tank is introduced into the V-shaped filter tank after being settled. The rainwater recycling device is used for recycling rainwater in the thermal power plant.

Description

Technical Field

[0001] This utility model relates to a rainwater recycling system for thermal power plants. Background Technology

[0002] The thermal power plant has multiple rainwater troughs for discharging rainwater, which is then recycled. However, currently, the rainwater is simply filtered through grates, which results in the rainwater being mixed with a lot of impurities. Furthermore, this untreated rainwater cannot be used. Utility Model Content

[0003] The purpose of this invention is to provide a rainwater recycling system for thermal power plants to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A rainwater recycling system for a thermal power plant comprises multiple rainwater troughs, a rainwater collection pool, and an emergency water pool. Rainwater from the multiple rainwater troughs is collected in the rainwater collection pool through outlet pipes. The rainwater collection pool and the emergency water pool are connected by a pumping pipe. Water in the emergency water pool is pumped into a sedimentation tank by a floating pump. After sedimentation, the water in the sedimentation tank is fed into a V-shaped filter.

[0006] In the aforementioned rainwater recycling system for thermal power plants, the outlet water of the floating dock pump is divided into two branches, one of which is connected to the sedimentation tank and the other is connected to the industrial wastewater tank.

[0007] The rainwater recycling system for a thermal power plant includes a rainwater trough comprising a main tank and a sludge collection tank. A fourth layer of filter plates is placed in the main tank, a third layer of filter plates is placed on the fourth layer of filter plates, a second layer of filter plates is placed on the third layer of filter plates, and a first layer of filter plates is placed on the second layer of filter plates. A sludge collection box is placed in the sludge collection tank.

[0008] The aforementioned rainwater recycling system for thermal power plants includes a sludge collection box comprising a square box body, with connecting plates fixed to the front and rear sides of the square box body, and a top plate fixed to the top of the connecting plates.

[0009] The aforementioned rainwater recycling system for thermal power plants has supporting ribs on the upper part of the fourth, third, and second filter plates. Beneficial effects

[0010] 1. This utility model can effectively recycle rainwater through a rainwater trough. The recycled rainwater flows into a rainwater collection tank and is then pumped into an emergency water tank by a lift pump. The water in the emergency water tank is periodically pumped to a high-density sedimentation tank by a floating dock pump. After PAC / PAM flocculation and sedimentation, the water enters a V-type filter to produce purified water usable by the power plant. When the rainwater is dirty, the water in the emergency water tank can be recycled to an industrial wastewater tank. After flocculation and sedimentation to adjust the pH, the water enters a reuse tank to supply water for greening and cleaning throughout the plant.

[0011] 2. The rainwater trough of this utility model can collect impurities mixed with rainwater by setting up a sludge collection box. After collection, the impurities can be poured out into the sludge collection box. At the same time, it is equipped with multi-layer filtration to effectively separate coal lumps and other impurities mixed in with rainwater, thereby achieving rainwater filtration. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention;

[0013] Figure 2 This is the front view of the rain gutter.

[0014] Figure 3 This is a top view of the rainwater gutter;

[0015] Figure 4 A top view without the comb;

[0016] Figure 5 A top view with the first filter plate removed;

[0017] Figure 6 Top view with the second filter plate removed;

[0018] Figure 7 Top view with the third filter plate removed;

[0019] Figure 8 This is a schematic diagram of the sludge collection box.

[0020] In the diagram: 1. Rainwater trough; 2. Rainwater collection tank; 3. Booster pump; 4. Emergency water tank; 5. Sedimentation tank; 6. Industrial wastewater tank; 7. V-type filter; 8. Floating dock pump; 9. Outlet pipe; 10. Pumping pipe; 11. Tank body; 12. Grate; 13. Main tank; 14. First layer filter plate; 15. Second layer filter plate; 16. Third layer filter plate; 17. Fourth layer filter plate; 18. Inclined platform; 19. Sludge collection tank; 20. Sludge collection box; 21. Drainage pipe; 22. Square box body; 23. Top plate; 24. Connecting plate; 25. Handle; 26. Support ribs. Detailed Implementation

[0021] Please see Figures 1-8This utility model provides a technical solution: a rainwater recycling system for thermal power plants, which comprises multiple rainwater troughs 1, a rainwater collection pool 2, and an emergency water pool 4. Rainwater from the multiple rainwater troughs is collected into the rainwater collection pool through an outlet pipe 9. The rainwater collection pool and the emergency water pool are connected through a pumping pipe 10. Water in the emergency water pool is pumped into a sedimentation tank 5 through a floating pump 8. After sedimentation, the water in the sedimentation tank is fed into a V-shaped filter 7.

[0022] In the aforementioned rainwater recycling system for thermal power plants, the outlet water of the floating dock pump is divided into two branches, one of which is connected to the sedimentation tank and the other is connected to the industrial wastewater tank 6.

[0023] The rainwater troughs effectively collect and filter rainwater. The water collected from multiple rainwater troughs flows out through the drain pipes and then into the rainwater collection tank. The water is then pumped into the emergency water tank by the lift pump 3. The water in the emergency water tank is periodically pumped to the high-density sedimentation tank by the floating dock pump. After flocculation and sedimentation with the addition of PAC / PAM, it enters the V-type filter to produce purified water usable by the power plant. When the rainwater is dirty, the water in the emergency water tank can be recycled to the industrial wastewater tank. After flocculation and sedimentation to adjust the pH, it enters the reuse water tank to supply water for greening and cleaning throughout the plant.

[0024] The aforementioned rainwater recycling system for a thermal power plant includes a rainwater trough 11, which contains a main pool 13 and a sludge collection trough 19. A fourth layer of filter plates 17 is placed in the main pool, a third layer of filter plates 16 is placed on the fourth layer of filter plates, a second layer of filter plates 15 is placed on the third layer of filter plates, a first layer of filter plates 14 is placed on the second layer of filter plates, and a sludge collection box 20 is placed in the sludge collection trough.

[0025] The top of the main tank has a grate 12. The upper parts of the fourth, third, and second filter plates have support ribs 26. The main tank has an inclined platform 18. During installation, the fourth filter plate is first placed on the inclined platform, and then the third filter plate is placed on the fourth filter plate. Because the fourth filter plate has support ribs, there can be a gap between the third and fourth filter plates. There are gaps between the first and second filter plates, between the second and third filter plates, and between the third and fourth filter plates. The ribs create gaps, forming a four-layer filter structure. The pore size of the second filter plate is smaller than that of the first filter plate, the third filter plate is smaller than that of the second filter plate, and the fourth filter plate is smaller than that of the third filter plate. This allows the incoming rainwater to be filtered sequentially through four layers. Since all four filter plates are inclined, the filtered debris, such as coal lumps, will roll down the filter plates into the sludge collection box for collection. When it is necessary to clean the debris in the sludge collection box, simply remove the sludge collection box.

[0026] After prolonged use, some debris that cannot roll into the sludge collection box will accumulate on each filter plate. When it is necessary to clean the filter plates, simply lift the grate and remove the four filter plates one by one for cleaning. After cleaning, put the four filter plates back in one by one.

[0027] The aforementioned rainwater recycling system for thermal power plants includes a sludge collection box comprising a square box body 22, with connecting plates 24 fixed to the front and rear sides of the square box body, and a top plate 23 fixed to the top of the connecting plates.

[0028] During the treatment process, rainwater troughs effectively collect and filter rainwater. Water collected from multiple rainwater troughs flows out through drain pipes and then into the rainwater collection tank. It is then pumped into the emergency water tank by lift pump 3. The water in the emergency water tank is periodically pumped to the high-density sedimentation tank by the floating dock pump. After flocculation and sedimentation with the addition of PAC / PAM, it enters the V-type filter to produce purified water usable by the power plant. When the rainwater is dirty, the water in the emergency water tank can be recycled to the industrial wastewater tank. After flocculation and sedimentation to adjust the pH, it enters the reuse water tank to supply water for greening and cleaning throughout the plant.

Claims

1. A rainwater recycling system for a thermal power plant, characterized in that: Its components include multiple rainwater troughs, rainwater collection tanks, and emergency water tanks. Rainwater from the multiple rainwater troughs is collected into the rainwater collection tank through outlet pipes. The rainwater collection tank and the emergency water tank are connected by a pumping pipe. Water in the emergency water tank is pumped into a sedimentation tank by a floating dock pump. After sedimentation, the water in the sedimentation tank is fed into a V-shaped filter.

2. The rainwater harvesting and utilization system for thermal power plants according to claim 1, characterized in that: The water outlet of the floating dock pump is divided into two branches, one of which is connected to the sedimentation tank and the other is connected to the industrial wastewater tank.

3. A rainwater harvesting and utilization system for thermal power plants according to claim 2, characterized in that: The rainwater trough includes a trough body, which has a main pool and a sludge collection trough. A fourth layer of filter plates is placed in the main pool, a third layer of filter plates is placed on the fourth layer of filter plates, a second layer of filter plates is placed on the third layer of filter plates, a first layer of filter plates is placed on the second layer of filter plates, and a sludge collection box is placed in the sludge collection trough.

4. A rainwater harvesting and utilization system for thermal power plants according to claim 3, characterized in that: The sludge collection box includes a square box body, with connecting plates fixed to the front and rear sides of the square box body, and a top plate fixed to the top of the connecting plates.

5. A rainwater harvesting and utilization system for thermal power plants according to claim 4, characterized in that: The upper part of the fourth, third, and second filter plates has supporting ribs.

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