CN221720652U - A highly efficient and energy-saving river water treatment system - Google Patents

Abstract

The utility model discloses an efficient and energy-saving river water treatment system, which is characterized by comprising a water intake system, a clarifier, a filter tank and a water supply system which are connected in sequence through pipelines, wherein the pipeline between the water intake system and the clarifier is connected with a dosing room and a disinfection room, the disinfection room is connected with the water supply system through pipelines, and the clarifier and the filter tank are both connected with a sludge treatment system. The utility model has the advantages that compared with the traditional complex process flow, the treatment system is simplified into three steps while maintaining the water purification effect, thereby simplifying the process flow, and at the same time, the degree of automation is high, and circular control and partial automatic control are performed throughout the process. The entire water purification system only needs to be equipped with 1 to 2 persons to be responsible for monitoring the on-duty control room, inspecting the current situation and cleaning the on-site sanitation, which greatly saves labor costs and has low operation and maintenance costs.

Description

A highly efficient and energy-saving river water treatment system

Technical Field

The utility model relates to the field of water treatment, in particular to a high-efficiency and energy-saving river water treatment system.

Background Art

With the rapid development of social economy, the increasing water pollution has posed a major threat to human survival and security, and has become a major obstacle to the sustainable development of human health, economy and society. According to a survey by a world authoritative organization, in developing countries, 8% of various diseases are spread by drinking unsanitary water, and at least 20 million people die from drinking unsanitary water every year. Therefore, water pollution is called "the world's number one killer". It is necessary to pre-treat the water of the Yangtze River into tap water, but the existing treatment systems are generally complex in process, large in size, and complex in operation, with large overall investment and high labor input, which has brought considerable pressure to enterprises and towns.

Utility Model Content

The purpose of the utility model is to solve the above technical problems and to provide a high-efficiency and energy-saving river water treatment system with high automation, low investment, simple operation and low cost.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A high-efficiency and energy-saving river water treatment system comprises a water intake system, a clarifier, a filter and a water supply system which are connected in sequence through pipelines. The pipeline between the water intake system and the clarifier is connected with a dosing room and a disinfection room. The disinfection room is connected to the water supply system through a pipeline. The clarifier and the filter are both connected to a sludge treatment system.

A further preferred technical solution is that the water intake system is provided with a plurality of water intake pumps, the water intake pumps are connected to the pollution interception equipment, the pollution interception equipment is connected to the raw water pipeline, the other end of the raw water pipeline is connected to the clarification tank, and the raw water pipeline is provided with an electric regulating valve, an electromagnetic flowmeter, a tubular static mixer and a raw water turbidity meter in sequence.

A further preferred technical solution is that a multi-stage clarification system and a siphon sludge discharge pipe are provided in the clarification tank, a multi-layer spoiler is provided in each stage of the clarification system, a filter sand layer and a siphon backwash pipe are provided in the filter tank, a U-shaped washing water trough is provided at the bottom of the pipe mouth of the siphon backwash pipe, and the siphon backwash pipe and the siphon sludge discharge pipe are both connected to the sludge treatment system.

A further preferred technical solution is that the siphon mud discharge pipe and the siphon backwash pipe are both provided with a power water source solenoid valve and a ball valve, the clarifier and the filter tank are both provided with an online clear water turbidity meter, and the filter tank is also provided with a liquid level meter.

A further preferred technical solution is that the sludge treatment system includes a sludge discharge tank, a submersible sewage pump, a mud thickening tank, a sludge feed plunger pump, a high-pressure diaphragm filter press and a belt conveyor which are connected in sequence, the upper layer of the sludge discharge tank is connected to the raw water pipeline in front of the tubular static mixer through a reuse water pump, the high-pressure diaphragm filter press is connected to the sludge discharge tank through a pipeline, a liquid level meter and a stirrer are provided in the sludge discharge tank, and a reuse water pump electromagnetic flowmeter is provided on the reuse water pump.

A further preferred technical solution is that a discharge pump, a PAC storage tank, a dosing metering pump and a dosing pipeline are sequentially connected in the dosing room, the dosing pipeline is connected to a tubular static mixer, and a tank agitator and a tank level gauge are provided in the PAC storage tank.

A further preferred technical solution is that a hydrochloric acid solution storage tank and a sodium chlorite solution storage tank are provided in the disinfection room, and the hydrochloric acid solution storage tank and the sodium chlorite solution storage tank are both connected to a chlorine dioxide generator, and the chlorine dioxide generator is connected to a first metering pump and a second metering pump, the first metering pump is connected to a tubular static mixer through a pipeline, and the second metering pump is connected to a water supply system.

A further preferred technical solution is that the water supply system is connected in sequence to clean water, a water supply pump room and a water supply pipeline, a liquid level meter is provided on the clean water tank, and an electric valve and a second electromagnetic flowmeter are provided on the water supply pump room.

Compared with the prior art, the beneficial effects of the utility model are: relative to the traditional complex process flow, the utility model simplifies the treatment system into 3 steps while maintaining the water purification effect, simplifies the process flow, and at the same time has a high degree of automation, with circular control and partial automatic control throughout the process. The entire water purification system only needs to be equipped with 1 to 2 people to be responsible for monitoring the control room on duty, inspecting the current situation and cleaning the on-site sanitation, which greatly saves labor costs. In addition, the operation and maintenance costs are low. The cost of the entire system is mainly the water pump water and electricity consumption, the clear water tank water pump water and electricity consumption and the cost of chemicals, and the rest are all siphoning and gravity flow, and no costs are incurred.

BRIEF DESCRIPTION OF THE DRAWINGS

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

In the figure: 1. Water intake system; 11. Pollution interception equipment; 12. Raw water pipeline; 13. Electric regulating valve; 14. Tubular static mixer; 15. Electromagnetic flowmeter; 16. Raw water turbidity meter; 2. Clarifier; 21. Spoiler; 22. Siphon mud pipe; 3. Filter tank; 31. Filter sand layer; 32. Siphon backwash pipeline; 4. Water supply system; 41. Clear water tank; 42. Water supply pump room; 5. Dosing room; 51. PA C storage tank; 52. Dosing metering pump; 53. Dosing pipeline; 6. Disinfection room; 61. Hydrochloric acid solution storage tank; 62. Sodium chlorite solution storage tank; 63. Chlorine dioxide generator; 64. First metering pump; 65. Second metering pump; 7. Sludge treatment system; 71. Sludge discharge tank; 72. Submersible sludge discharge pump; 73. Mud concentration tank; 74. Sludge feed plunger pump; 75. High-pressure diaphragm filter press; 76. Belt conveyor.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Embodiment 1

As shown in FIG1 , a high-efficiency and energy-saving river water treatment system, which is a 1000 m ³ /h water purification system in this embodiment, comprises a water intake system 1, a clarifier 2, a filter 3 and a water supply system 4 which are sequentially connected by pipelines. The pipeline between the water intake system 1 and the clarifier 2 is connected with a dosing room 5 and a disinfection room 6. The disinfection room 6 is connected to the water supply system 4 through a pipeline. The clarifier 2 and the filter 3 are both connected to a sludge treatment system 7.

Specifically, in this embodiment, the water intake system 1 is provided with three water intake pumps, each with a flow rate of ^700m3 /h. Submersible pumps are used. The three submersible pumps are respectively one variable frequency pump and two industrial frequency pumps for adjusting the water volume, two for use and one for standby. The water intake pump is connected to a pollution interception device 11, which is a rotary filter screen for preliminarily filtering garbage in the water source. The pollution interception device 11 is connected to a raw water pipeline 12, which adopts a DN600 pipe. The other end of the raw water pipeline 12 is connected to a clarification tank 2. An electric regulating valve 13, an electromagnetic flowmeter 15, a tubular static mixer 14 and a raw water turbidity meter 16 are provided on the raw water pipeline 12 in sequence. The electric regulating valve 13 is adjusted by the response of the value of the raw water turbidity meter 16. If the turbidity is too high, the flow rate is reduced. If the turbidity is low, the flow rate is increased. The use of the tubular static mixer can achieve preliminary coagulation of the raw water before it enters the clarification tank, thereby improving the efficiency of subsequent coagulation.

Specifically, in this embodiment, a multi-stage clarification system and a siphon mud discharge pipe 22 are provided in the clarification tank 2. The outer surface size of the pool wall is 13.1m*13.1m, and the height is 9.15m. A three-stage clarification system is provided. The first stage is a reaction tower arranged in the center of the clarification tank. The second stage is a flocculation zone 2 separated by a partition wall around the reaction tower. The third stage is a sedimentation zone composed of a partition wall and the inner wall of the clarification tank. The raw water passes through the three-stage clarification system in sequence. After entering the reaction tower, the raw water flows from bottom to top, overflows from the top and enters the flocculation zone 2 from top to bottom, enters the sedimentation zone from the bottom and then flows from bottom to top into the filter tank 3. An inclined pipe is provided in the sedimentation zone, and a multi-layer spoiler 21 is provided in each stage of the clarification system. The sludge and debris in the conical bottom of the clarification tank 2 can be discharged out of the pool regularly through the remotely controlled siphon mud discharge pipe 22. The turbidity of the effluent from the clarification tank is ≦10NTU.

A filter sand layer 31 and a siphon backwash pipe 32 are provided in the filter tank 3. Specifically, there are 4 small filter tanks of the same size. The overall plane outer dimension is 10.75m*10.75m, and the net dimension of a single filter tank is 4.975m*4.975m. Each small filter tank is provided with a filter sand layer 31. After passing through the filter sand layer 31, the clean water enters the lower part of the filter plate through the holes of the filter plate, and then enters the clean water area from the bottom to the top through the triangular connecting channels arranged at the four corners of the filter tank, and then continues to overflow upward into the clean water collecting tank, and finally flows into the clean water pipe. A U-shaped water washing trough is provided at the bottom of the pipe mouth of the siphon backwash pipe 32. The U-shaped water washing trough is arranged at the lower part of the pipe mouth of the backwash pipe to prevent the backwash water flow from sucking away the filter sand. The siphon backwash pipe 32 and the siphon sludge pipe 22 are both connected to the sludge treatment system. The sludge generated by the filtration of the sand layer in the single-cell filter increases with time, and the water level in the water inlet area on the sand layer in the filter also rises. When the water level in the water inlet area reaches the top of the siphon backwash pipe, the water flow gradually takes away the air in the pipe to form a siphon and start backwashing, and the sludge in the sand layer is pumped out of the pool. The turbidity of the filter outlet water is ≤1NTU. Specifically, the siphon sludge pipe and the siphon backwash pipe are both equipped with a power water source solenoid valve and a ball valve, which can remotely control the start and stop of the solenoid valve and the electric ball valve to control the start and stop of the siphon sludge discharge. The clarifier and the filter are both equipped with online clear water turbidity meters, and the filter is also equipped with a liquid level gauge. The liquid level gauge data is only for reference whether the filter backwash is to be performed, and the filter outlet water turbidity data is only for reference whether the filter outlet water turbidity meets the requirements.

Specifically, the sludge treatment system 7 includes a sludge pool 71, a submersible sewage pump 72, a mud concentration tank 73, a sludge feed plunger pump 74, a high-pressure diaphragm filter press 75 and a belt conveyor 76 which are connected in sequence. The process of the sludge treatment system is: mud water in the sludge pool → submersible sewage pump → mud concentration tank (dosing) → sludge feed plunger pump → high-pressure diaphragm filter press (filtered water returns to the sludge pool) → mud cake → belt conveyor → loading and transporting to a designated treatment unit for treatment. The upper clear liquid of the sludge pool 71 is connected to the raw water pipeline 12 in front of the tubular static mixer 14 through a reuse water pump. The high-pressure diaphragm filter press 75 is connected to the sludge pool 71 through a pipeline. A liquid level meter and a mixer are provided in the sludge pool 71. A reuse water pump electromagnetic flowmeter is provided on the reuse water pump. A total of 3 submersible sewage pumps, 2 reuse water pumps, 1 liquid level meter, 2 mixers and 1 reuse water pipe electromagnetic flowmeter are provided.

Specifically, a further preferred technical solution is that the dosing room 5 is connected with a discharge pump, a PAC storage tank 51, a dosing metering pump 52 and a dosing pipe 53 in sequence, the dosing pipe 53 is connected to a tubular static mixer, the PAC storage tank 51 is provided with a tank mixer and a tank level gauge, the PAC storage capacity is about 20m3, and the flocculant (PAC solution) is transported to the PAC storage tank by a discharge pump. The flocculant enters the dosing pipe and is transported to the tubular static mixer of the raw water pipeline through the dosing metering pump. There is a PLC substation control box on site in the dosing room to control and monitor the equipment in the dosing room, such as the dosing metering pump, the tank level gauge and the tank mixer. The dosing substation communicates with the PLC master station, so that the on-duty control room can monitor the operation of the dosing room equipment and the storage of the reagents in the tank. The start and stop of the dosing equipment is controlled by the control cabinet in the dosing room. After it is started, the dosing substation extracts data such as raw water flow, raw water turbidity and clarifier effluent turbidity from the PLC main station, and realizes automatic dosing of the dosing metering pump according to the program compiled by the substation.

Specifically, a hydrochloric acid solution storage tank 61 and a sodium chlorite solution storage tank 62 are provided in the disinfection room 6, and the hydrochloric acid solution storage tank 61 and the sodium chlorite solution storage tank 62 are both connected to a chlorine dioxide generator 63. In some other embodiments, if the sodium hypochlorite solution is directly added, only a metering pump is required. The chlorine dioxide generator 63 is connected to a first metering pump 64 and a second metering pump 65. The first metering pump 64 is connected to a tubular static mixer through a pipeline, and the second metering pump 65 is connected to a water supply system. The process flow is: a discharge pump is used to transport the hydrochloric acid solution and the sodium chlorite solution to their respective storage tanks; the hydrochloric acid solution and the sodium chlorite solution enter the chlorine dioxide generator in proportion to react and produce a chlorine dioxide solution. Two generators are turned on during operation, one for front chlorination and the other for rear chlorination. The chlorine dioxide solution is connected to the tubular static mixer (front chlorination) on the raw water pipeline through the metering pump on the generator through the dosing pipeline, and the other way leads to the clear water tank (later chlorination). There is a PLC substation control box on site in the disinfection room to control and monitor the equipment in the disinfection room, such as chlorine dioxide generator, tank level gauge and leakage alarm. The disinfection substation communicates with the PLC main station to monitor the operation of the dosing room equipment and the storage of the agent in the tank in the duty control room. The start and stop of the disinfection equipment is controlled by the control cabinet in the disinfection room. After starting, the disinfection substation extracts the raw water flow signal from the PLC main station and realizes the automatic dosing of the dosing metering pump according to the program compiled by the substation. A further preferred technical solution is that the water supply system 4 is connected to the clear water tank 41, the water supply pump room 42 and the water supply pipeline in sequence, and the clear water tank is provided with a level gauge. The total capacity of the clear water tank is not less than 3000m3, and the water supply pump room is provided with an electric valve and a second electromagnetic flowmeter.

The process flow of the utility model is as follows: the raw water passes through the sewage interception equipment 11 of the water intake system, removes most of the large-volume debris in the water, and then enters the raw water pipeline 12. Before the raw water enters the clarifier 2 from the raw water pipeline 12, a flocculant (PAC) and a disinfectant (chlorine dioxide solution or sodium hypochlorite solution) are added to the tubular static mixer 14 on the raw water pipeline 12, and the suspended matter in the raw water begins to flocculate preliminarily. The raw water enters the clarifier 2 from the raw water pipeline 12, and after flocculation and sedimentation, the water from the top of the clarifier 2 enters the filter 3 through the connecting pipe between the clarifier 2 and the filter 3. The sludge and other impurities generated by the sedimentation in the pool are regularly discharged through the siphon sludge pipe 22 and the sewage pipe into the sludge pool 71 of the sludge treatment system 7. The effluent of the clarifier 2 enters the filter 3 and the clean water after being filtered by the filter sand layer 31 enters the clean water pipeline. The sludge generated by filtration in the filter 3 is regularly discharged into the sewage pipe through the backwash pipe 32 and into the sludge pool 71 of the sludge treatment system 7. The clean water after sedimentation of the muddy water in the mud pool 71 enters the recycled water pipeline through the recycled water pump and is transported to the front end of the tubular static mixer 14 on the raw water pipeline 12 for reuse. The concentrated muddy water after sedimentation is transported to the high-pressure diaphragm filter press 75 through the submersible sewage pump 72 for filter press treatment. The clean water enters the clean water pool 41 through the clean water pipeline, and disinfectant is added to the clean water again after entering the clean water pool 41. The clean water in the clean water pool 41 enters the water supply pipeline through the water supply pump room 42 for water supply.

Compared with the traditional complicated process flow, the utility model simplifies the treatment system into 3 steps while maintaining the water purification effect, thus simplifying the process flow. At the same time, it has a high degree of automation, and performs circular control and partial automatic control throughout the process. The entire water purification system only needs 1 to 2 people to be responsible for monitoring the control room on duty, inspecting the current situation and cleaning the site, which greatly saves labor costs. In addition, the operation and maintenance costs are low. The cost of the whole system is mainly the energy consumption of the water pump for taking water and electricity, the energy consumption of the water pump for sending water to the clear water tank and the cost of chemicals. The rest is all siphoning and gravity flow, and no costs are incurred.

The above description is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present utility model according to the technical scheme and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims (8)

1. The utility model provides a high-efficient energy-conserving river water treatment system, its characterized in that, including the water intaking system, the clarifier, filtering pond and the water supply system that loop through pipe connection, pipe connection between water intaking system and the clarifier has between dosing and disinfection, be connected with the water supply system through the pipeline between the disinfection, clarifier and filtering pond all link to each other with sludge treatment system.

2. The efficient energy-saving river water treatment system as claimed in claim 1, wherein the water taking system is provided with a plurality of water taking pumps, the water taking pumps are connected with a trash rack, the trash rack is connected with a raw water pipeline, the other end of the raw water pipeline is connected with a clarification tank, and the raw water pipeline is sequentially provided with an electric regulating valve, an electromagnetic flowmeter, a tubular static mixer and a raw water turbidity meter.

3. The efficient energy-saving river water treatment system of claim 1, wherein a multi-stage clarification system and a siphon sludge discharge pipe are arranged in the clarification tank, a multi-layer spoiler is arranged in each stage of clarification system, a filtering sand layer and a siphon back flushing pipeline are arranged in the filter tank, a U-shaped washing tank is arranged at the bottom of a pipe orifice of the siphon back flushing pipeline, and the siphon back flushing pipeline and the siphon sludge discharge pipe are connected with the sludge treatment system.

4. The efficient energy-saving river water treatment system as claimed in claim 3, wherein the siphon mud discharging pipe and the siphon back flushing pipeline are respectively provided with a power water source electromagnetic valve and a ball valve, the clarifier and the filter tank are respectively provided with an online clear water turbidity meter, and the filter tank is also internally provided with a liquid level meter.

5. The efficient energy-saving river water treatment system as claimed in claim 2, wherein the sludge treatment system comprises a sludge discharge tank, a submersible sewage pump, a sludge concentration tank, a sludge feeding plunger pump, a high-pressure membrane filter press and a belt conveyor which are sequentially connected, wherein the upper layer of the sludge discharge tank is connected with a raw water pipeline in front of a tubular static mixer through a recycling water pump, the high-pressure membrane filter press is connected with the sludge discharge tank through a pipeline, a liquid level meter and a stirrer are arranged in the sludge discharge tank, and an electromagnetic flowmeter of the recycling water pump is arranged on the recycling water pump.

6. The efficient energy-saving river water treatment system according to claim 2, wherein a discharge pump, a PAC storage tank, a dosing metering pump and a dosing pipeline are sequentially connected in the dosing chamber, the dosing pipeline is connected with a tubular static mixer, and a storage tank stirrer and a storage tank liquid level meter are arranged in the PAC storage tank.

7. The efficient energy-saving river water treatment system as claimed in claim 2, wherein a hydrochloric acid solution storage tank and a sodium chlorite solution storage tank are arranged in the disinfection room, the hydrochloric acid solution storage tank and the sodium chlorite solution storage tank are connected with a chlorine dioxide generator, the chlorine dioxide generator is connected with a first metering pump and a second metering pump, the first metering pump is connected with a tubular static mixer through a pipeline, and the second metering pump is connected with a water supply system.

8. The efficient energy-saving river water treatment system according to claim 1, wherein the water supply system is sequentially connected with a clean water tank, a water supply pump room and a water supply pipeline, a liquid level meter is arranged on the clean water tank, and an electric valve and a second electromagnetic flowmeter are arranged on the water supply pump room.