A sewage treatment agent delivery pipeline control system
By designing the tank, pumping components, and pressure stabilizing components, the problem of unstable reagent delivery was solved, achieving stable and precise reagent flow and improving the efficiency and quality of wastewater treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANYANG YIQING BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-19
AI Technical Summary
Existing wastewater treatment chemical delivery methods lack pretreatment and control, resulting in large fluctuations in chemical flow rates, making it difficult to achieve precise dosing and affecting wastewater treatment effectiveness.
It employs a tank, pumping assembly, pressure stabilizing assembly, and bypass assembly, including a diaphragm pressure stabilizing tank, pressure stabilizing valve, pressure relief pipeline, and sensor, to ensure the stability and accuracy of the drug flow through buffering, regulation, and filtration.
This achieved stable and precise dosing of the reagent flow rate, reduced the failure rate, and improved the efficiency and quality of wastewater treatment.
Smart Images
Figure CN224381275U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wastewater treatment technology, and in particular to a wastewater treatment agent delivery pipeline control system. Background Technology
[0002] In the field of wastewater treatment, chemical delivery is a crucial link, directly affecting the effectiveness of wastewater treatment and the stable operation of the entire system. Efficient, stable, and precise chemical delivery can ensure the smooth progress of the wastewater treatment process, improve the efficiency and quality of wastewater treatment, and thus better protect the environment and water resources. Good chemical delivery technology can also reduce operating costs, improve the overall economic benefits of wastewater treatment systems, and promote the sustainable development of the wastewater treatment industry.
[0003] In the past, wastewater treatment chemicals were transported using a simple tank and pipeline method. The chemicals were stored directly in the tank and transported to the wastewater treatment pond by gravity or a simple pump through ordinary pipelines. Diaphragm pumps were commonly used as the main transport equipment. However, this method lacked pretreatment and control of the chemicals.
[0004] Regarding the aforementioned technologies, simple delivery methods cannot effectively pretreat and control the agents. The pulsating delivery characteristics of diaphragm pumps cause large fluctuations in agent flow, making it difficult to achieve precise dosing and easily leading to unstable agent delivery, which in turn affects the wastewater treatment effect. Utility Model Content
[0005] To overcome the above problems, this application provides a wastewater treatment agent delivery pipeline control system.
[0006] The wastewater treatment agent delivery pipeline control system provided in this application adopts the following technical solution:
[0007] A wastewater treatment agent delivery pipeline control system includes a tank, a pumping assembly, and a pressure stabilizing assembly. The tank is used to hold the agent. The pumping assembly includes a first pipeline, a centrifugal pump, a buffer, and a second pipeline. The first pipeline is connected to the tank and its other end is connected to the inlet of the centrifugal pump. The centrifugal pump is fixed to a concrete foundation. The buffer is connected to the first pipeline. One end of the second pipeline is connected to the outlet of the centrifugal pump, and the other end is set as a dosing port.
[0008] The pressure stabilizing assembly includes a pressure stabilizing component and a pressure relieving component. The pressure stabilizing component includes a diaphragm pressure stabilizing tank and a pressure stabilizing valve. The diaphragm pressure stabilizing tank is connected to the second pipeline. The pressure stabilizing valve is connected to the end of the second pipeline near the dosing port. The pressure relieving component includes a pressure relieving pipe, a pressure reducing valve, and a second pressure sensor. One end of the pressure relieving pipe is connected to the second pipeline, and the other end is connected to the tank body. The connection point between the pressure relieving pipe and the second pipeline is located between the diaphragm pressure stabilizing tank and the pressure stabilizing valve. The pressure reducing valve is connected to the pressure relieving pipe. The second pressure sensor is connected to the second pipeline and electrically connected to the pressure reducing valve. The second pressure sensor is located between the pressure stabilizing valve and the diaphragm pressure stabilizing tank and is used to measure the pressure in the second pipeline after treatment by the diaphragm pressure stabilizing tank.
[0009] By adopting the above technical solution, the tank contains the reagent, the centrifugal pump is fixed to the concrete foundation to ensure stable operation, the buffer is connected to the first pipeline to buffer and reduce the pressure in the first pipeline when the pressure is too high; the diaphragm pressure stabilizing tank can absorb pressure fluctuations in the main pipeline and stabilize the reagent flow at the dosing port, the pressure stabilizing valve can control the reagent flow switch, and the second pressure sensor can measure the pressure in the second pipeline after the diaphragm pressure stabilizing tank has processed it. When the pressure exceeds the preset value, the pressure reducing valve automatically opens and returns the excess reagent to the tank through the pressure relief pipeline, thereby achieving the effects of stabilizing the reagent flow, accurate dosing and reducing the failure rate.
[0010] In one specific implementation scheme, a bypass assembly is also included. The bypass assembly includes a bypass pipe, a bypass valve, and a first pressure sensor. One end of the bypass pipe is connected to the second pipe, and the other end extends into the top of the tank and is connected to the tank. The connection between the bypass pipe and the second pipe is located between the centrifugal pump and the diaphragm pressure tank. The bypass valve is connected to the bypass pipe and is used to regulate the flow rate of the bypass pipe. The first pressure sensor is connected to the bypass pipe and is used to measure the initial pressure at which the centrifugal pump delivers the agent into the second pipe. The first pressure sensor is electrically connected to the bypass valve.
[0011] The pressure relief pipe is connected to the bypass pipe at the end furthest from the second pipe.
[0012] By adopting the above technical solution, the bypass pipe connects the second pipe to the tank. The first pressure sensor can measure the initial pressure of the centrifugal pump pumping the agent into the second pipe and is electrically connected to the bypass valve. The flow rate of the bypass pipe can be adjusted according to the pressure. When the pressure in the second pipe exceeds the preset value, part of the flow can be diverted to achieve coarse adjustment and initially reduce the pressure in the pipe. Furthermore, the pressure relief pipe is connected to the bypass pipe at the end away from the second pipe, allowing excess agent to return to the tank through the bypass pipe, further ensuring the stability of the pressure in the pipe and the accuracy of agent delivery.
[0013] In one specific implementation, the bypass pipe is connected to the second pipe at an angle.
[0014] By adopting the above technical solution, it is beneficial to the diversion and flow of the agent, while avoiding the generation of bubbles and splashing of the agent during the reflux process, thus improving the stability of the reflux.
[0015] In one specific implementation scheme, a processing component is further included, the processing component including a first filter element, the first filter element including a dosing tank and a filter screen, the dosing tank being located at the top of the tank body, the bottom of the dosing tank communicating with the interior of the tank body, the filter screen being connected inside the dosing tank, the filter screen being inclined, the sidewall of the filter screen being in contact with the sidewall of the dosing tank, the filter screen being used to filter the agent, and the top of the dosing tank having an injection port for injecting the agent.
[0016] By adopting the above technical solution, during the transportation of wastewater treatment agents, the dosing tank is located at the top of the tank and its bottom is connected to the inside of the tank. The agent is injected into the dosing tank from the inlet. The filter screen, which is set at an angle and whose side wall is attached to the dosing tank, can filter the agent, remove impurities in the agent, and prevent impurities from entering the tank and subsequent transportation process, thus ensuring the purity of the agent and improving the effect and quality of wastewater treatment.
[0017] In one specific implementation scheme, the dosing tank has a cleaning port at the lowest end of the filter screen, and the dosing tank is equipped with a cleaning door at the cleaning port;
[0018] The processing assembly further includes a cleaning component, which includes a scraper and a cleaning source. The scraper is slidably connected to the filter screen, and the sliding direction of the scraper is consistent with the tilt direction of the filter screen. The sliding area of the scraper is slightly smaller than the area of the filter screen. The scraper cleans impurities on the filter screen. The cleaning source is connected to the dosing tank and is connected to the scraper to drive the scraper to move.
[0019] By adopting the above technical solution, a cleaning port and a cleaning door are opened at the lowest end of the filter screen in the dosing tank, which facilitates the cleaning of the filter screen. The cleaning component of the treatment unit has a scraper that can slide along the inclined direction of the filter screen to clean the impurities on the filter screen. The cleaning source can drive the scraper to move, ensuring the continuous cleanliness of the filter screen and avoiding the impact of impurity accumulation on the filtration effect of the agent. This allows the agent to be delivered to the sewage treatment system more stably and accurately, reducing the pipeline failure rate and improving the efficiency and quality of sewage treatment.
[0020] In one specific implementation, the processing assembly further includes a stirring component, which comprises a stirring rod, multiple stirring blades, and a stirring motor. The stirring rod is located inside the tank, and its axis coincides with the axis of the tank. One end of the stirring rod near the top of the tank is rotatably connected to the tank. The multiple stirring blades are all located inside the tank and are arranged perpendicularly to the stirring rod. One end of each stirring blade is connected to the stirring rod. The housing of the stirring motor is connected to the top of the tank, and the output shaft of the stirring motor is coaxially fixed with the stirring rod. The stirring blades stir the reagent.
[0021] By adopting the above technical solution, the stirring motor drives the stirring rod to stir the stirring blades to stir the agent in the tank, so that the agent is mixed evenly, providing better agent conditions for subsequent sewage treatment and improving the sewage treatment effect.
[0022] In one specific implementation, the pumping assembly further includes a second filter element connected to the first pipe for secondary filtration of the pharmaceutical agent.
[0023] By adopting the above technical solution, the second filter element is connected to the first pipeline to perform secondary filtration of the agent, which can further remove impurities in the agent, improve the purity of the agent, ensure the accuracy and stability of the agent delivery, reduce the impact on the sewage treatment system, and improve the efficiency and quality of sewage treatment.
[0024] In one specific implementation, the cleaning source includes a screw, a guide rod, a slide rod, an insert rod, and a cleaning motor. The screw passes through the two side walls directly opposite the dosing tank, and is perpendicular to the side walls through which it passes. Both ends of the screw are rotatably connected to the two side walls directly opposite the dosing tank. The screw is located on the side of the filter screen near the top of the dosing tank. The two side walls directly opposite the dosing tank, where the screw passes through, correspond to the highest and lowest points of the filter screen being connected to the two side walls directly opposite the dosing tank. The guide rod is parallel to the screw, and both ends of the guide rod are fixed to the... The slide rod is located on one side of the dosing tank, facing the two side walls. The slide rod extends from the dosing tank to one side of the tank body. The slide rod is perpendicular to the screw. The end of the slide rod near the top of the dosing tank is threaded to the screw. The end of the slide rod away from the top of the dosing tank is hollow. The insert rod is coaxial with the slide rod and is elastically inserted into the end of the slide rod away from the top of the dosing tank. The scraper is connected to the end of the insert rod away from the slide rod. The cleaning motor is located near one end of the screw. The housing of the cleaning motor is fixed to the dosing tank. The cleaning motor drives the screw to rotate in both directions.
[0025] By adopting the above technical solution, the cleaning motor of the cleaning source drives the screw to rotate in both directions, causing the slide bar to slide along the length of the screw, which in turn causes the insert rod to drive the scraper to slide along the inclined direction of the filter screen, thereby cleaning the impurities on the filter screen.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. The designed sewage treatment chemical delivery pipeline control system includes a diaphragm pressure stabilizing tank that can absorb pressure fluctuations in the main pipeline and stabilize the chemical flow at the dosing port. The pressure stabilizing valve can control the chemical flow switch. The second pressure sensor can measure the pressure in the second pipeline after treatment by the diaphragm pressure stabilizing tank. When the pressure exceeds the preset value, the pressure reducing valve automatically opens, and the excess chemical is returned to the tank through the pressure relief pipeline, thereby achieving the effects of stabilizing the chemical flow, accurate dosing, and reducing the failure rate.
[0028] 2. The designed sewage treatment agent delivery pipeline control system can divert part of the flow to achieve coarse adjustment when the pressure in the second pipeline exceeds the preset value, thus initially reducing the pressure in the pipeline; and the pressure relief pipeline is connected to the bypass pipeline at the end away from the second pipeline, so that excess agents can be returned to the tank through the bypass pipeline, further ensuring the stability of the pipeline pressure and the accuracy of agent delivery.
[0029] 3. The designed sewage treatment agent delivery pipeline control system uses a cleaning source to drive the scraper movement, ensuring continuous cleaning of the filter screen and preventing impurities from affecting the agent filtration effect. This allows the agent to be delivered to the sewage treatment system more stably and accurately, reducing pipeline failure rate and improving sewage treatment efficiency and quality. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the wastewater treatment agent delivery pipeline control system according to an embodiment of this application.
[0031] Figure 2 This is a cross-sectional view of the tank in this embodiment.
[0032] Figure 3 yes Figure 2 A magnified view of A in the middle.
[0033] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. Processing component; 21. First filter element; 211. Dosing tank; 2111. Inlet; 2112. Cleaning port; 2113. Cleaning door; 212. Filter screen; 22. Cleaning component; 221. Scraper; 222. Cleaning source; 2221. Screw; 2222. Guide rod; 2223. Slide rod; 2224. Insert rod; 2225. Spring; 2226. Cleaning motor; 23. Agitator; 231. Agitator rod; 232. Stirring rod. 233. Mixing blades; 3. Stirring motor; 3. Pumping assembly; 31. First pipeline; 32. Centrifugal pump; 33. Second filter element; 34. Buffer; 35. Second pipeline; 4. Bypass assembly; 41. Bypass pipeline; 42. Bypass valve; 43. First pressure sensor; 5. Pressure stabilizing assembly; 51. Pressure stabilizing component; 511. Diaphragm pressure stabilizing tank; 512. Pressure stabilizing valve; 52. Pressure relief component; 521. Pressure relief pipeline; 522. Pressure reducing valve; 523. Second pressure sensor. Detailed Implementation
[0034] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0035] This application discloses a wastewater treatment agent delivery pipeline control system.
[0036] Reference Figure 1 A wastewater treatment agent delivery pipeline control system includes a tank 1, a treatment component 2, a pumping component 3, a bypass component 4, and a pressure stabilizing component 5. The treatment component 2 is mounted on the tank 1, the pumping component 3 is connected to the tank 1, and both the bypass component 4 and the pressure stabilizing component 5 are connected to the pumping component 3.
[0037] Reference Figure 1 , Figure 2 and Figure 3The tank 1 is hollow and used to hold the reagent. The tank 1 is cylindrical and vertically arranged. The processing component 2 includes a first filter element 21, a cleaning element 22, and a stirring element 23. The first filter element 21 includes a dosing tank 211 and a filter screen 212. The dosing tank 211 is located at the top of the tank 1, and its bottom communicates with the interior of the tank 1. The dosing tank 211 is welded to the top of the tank 1. The filter screen 212 is located inside the dosing tank 211 and is inclined. The sidewall of the filter screen 212 is attached to the sidewall of the dosing tank 211 and is welded to the sidewall of the dosing tank 211. The top of the dosing tank 211 has an injection port 2111 for injecting the reagent. When the reagent passes through... The injection port 2111 leads into the dosing tank 211. The filter screen 212 filters impurities in the agent. The dosing tank 211 has a cleaning port 2112 at the lowest end of the filter screen 212. The bottom of the cleaning port 2112 is flush with the top of the lowest end of the filter screen 212. The dosing tank 211 has a cleaning door 2113 at the cleaning port 2112. One end of the cleaning door 2113 is hinged to the dosing tank 211. The side of the cleaning door 2113 away from the hinge end is detachably connected to the dosing tank 211 for easy cleaning of the filter screen 212. A sealing gasket is fixedly bonded to the periphery of the cleaning door 2113. The sealing gasket can seal the connection between the cleaning door 2113 and the dosing tank 211 to prevent agent leakage.
[0038] Reference Figure 2 and Figure 3The cleaning component 22 includes a scraper 221 and a cleaning source 222. The scraper 221 is slidably connected to the filter screen 212. The sliding direction of the scraper 221 is consistent with the tilting direction of the filter screen 212. The sliding area of the scraper 221 is slightly smaller than the area of the filter screen 212. The scraper 221 can clean impurities on the filter screen 212. The cleaning source 222 includes a screw 2221, a guide rod 2222, a slide rod 2223, an insert rod 2224, a spring 2225, and a cleaning motor 2226. The screw 2221 passes through the two side walls directly opposite the dosing tank 211, and the screw 2221 is perpendicular to the side walls of the dosing tank 211 through which it passes. The two ends of the screw 2221 are rotatably connected to the two side walls directly opposite the dosing tank 211. The screw 2221 is located on the side of the filter screen 212 near the top of the dosing tank 211. The two side walls facing the dosing tank 211 are connected to the highest and lowest ends of the filter screen 212, respectively, and are respectively connected to the two side walls facing the dosing tank 211. The guide rod 2222 is located inside the dosing tank 211 and is set parallel to the screw 2221. Both ends of the guide rod 2222 are welded to the two side walls facing the dosing tank 211. The slide rod 2223 is located inside the dosing tank 211 and is set from the dosing tank 211 to the side of the tank body 1. The slide rod 2223 is set perpendicular to the screw 2221. The end of the slide rod 2223 near the top of the dosing tank 211 is threaded to the screw 2221. The slide rod 2223 can slide along the length of the screw 2221. The guide rod 2222 passes through the end of the slide rod 2223 near the top of the dosing tank 211, and the slide rod 2223 is slidably connected to the guide rod 2222.
[0039] Reference Figure 2 and Figure 3The sliding rod 2223 has a hollow end away from the top of the dosing tank 211. The insertion rod 2224 is coaxially arranged with the sliding rod 2223 and is inserted into the end of the sliding rod 2223 away from the top of the dosing tank 211. The insertion rod 2224 is slidably connected to the sliding rod 2223 and can slide along the length of the sliding rod 2223. The spring 2225 is located inside the sliding rod 2223, and the direction of the spring 2225 is consistent with the length of the sliding rod 2223. One end of the spring 2225 is welded to the sliding rod 2223, and the other end is welded to the insertion rod 2224. The scraper 221 is welded to the end of the insertion rod 2224 away from the sliding rod 2223. The cleaning motor 2226 is located near the screw. One end of the rod 2221 is fixedly connected to the housing of the cleaning motor 2226 to the dosing tank 211 by screws. The output shaft of the cleaning motor 2226 is fixedly connected to the screw 2221 coaxially by a coupling. The cleaning motor 2226 drives the screw 2221 to rotate forward and backward, which facilitates continuous cleaning of the filter screen 212. During the cleaning process, when the scraper 221 moves to the highest point of the filter screen 212, the insertion rod 2224 moves towards the side closer to the slide rod 2223, and the spring 2225 is compressed. When the scraper 221 moves to the lowest point of the filter screen 212, the spring 2225 returns to its original shape, and the insertion rod 2224 moves away from the slide rod 2223.
[0040] Reference Figure 1 and Figure 2 The mixing component 23 includes a mixing rod 231, multiple mixing blades 232, and a mixing motor 233. The mixing rod 231 is located inside the tank 1 and is perpendicular to the top of the tank 1. The axis of the mixing rod 231 coincides with the axis of the tank 1. One end of the mixing rod 231 near the top of the tank 1 is rotatably connected to the tank 1. The multiple mixing blades 232 are all located inside the tank 1 and are perpendicular to the mixing rod 231. The multiple mixing blades 232 are divided into multiple groups, and the multiple groups of mixing blades 232 are distributed at intervals along the length of the mixing rod 231. In each group, the multiple mixing blades 232 are evenly distributed around the circumference of the mixing rod 231. One end of the mixing blades 232 is welded to the mixing rod 231. The housing of the mixing motor 233 is fixedly connected to the top of the tank 1 by screws. The output shaft of the mixing motor 233 is coaxially fixedly connected to the mixing rod 231 by a coupling. The mixing motor 233 drives the mixing rod 231 to rotate, which can drive the mixing blades 232 to stir the medicine and make it evenly mixed.
[0041] Reference Figure 1The pumping assembly 3 includes a first pipe 31, a centrifugal pump 32, a second filter element 33, a buffer 34, and a second pipe 35. One end of the first pipe 31 is connected to the side wall of the tank 1, and the connection between the first pipe 31 and the tank 1 is close to the bottom of the tank 1. The other end of the first pipe 31 is connected to the inlet of the centrifugal pump 32. The pump body of the centrifugal pump 32 can be made of stainless steel to adapt to the characteristics of the wastewater treatment agents. The centrifugal pump 32 is fixed to the concrete foundation by a flange connection, which can ensure the stability of the centrifugal pump 32 during operation, reduce vibration and displacement, and ensure its normal operation. The first pipe 31 is usually of DN50 specification, which has good corrosion resistance and strength and can withstand certain pressure and flow. The first pipe 31 can be made of seamless stainless steel pipe with a smooth inner wall, which reduces the resistance during the agent delivery process. The first pipe 31 is close to the tank. One end of the main pipe is fixedly connected to a ball valve via a flange, which is used to control the opening and closing of the main pipe and the flow rate. The second filter element 33 is located on the side of the ball valve away from the tank 1. In this embodiment, the second filter element 33 is a Y-type filter. The Y-type filter is connected to the first pipe 31 and can perform secondary filtration of the agent. The buffer 34 is located on the side of the first and second filters 33 away from the tank 1. The buffer 34 is connected to the first pipe 31. When the pressure in the first pipe 31 is too high, the agent enters the buffer 34 for buffering, so that the pressure in the first pipe 31 is reduced. One end of the second pipe 35 is connected to the outlet of the centrifugal pump 32, and the other end is set as a dosing port. The dosing port is the final position of the agent into the sewage treatment system. Its design must ensure that the agent can be added to the sewage evenly and accurately. The dosing port can adopt a nozzle structure so that the agent enters the sewage in the form of a spray to improve the mixing effect.
[0042] Reference Figure 1The bypass assembly 4 includes a bypass pipe 41, a bypass valve 42, and a first pressure sensor 43. One end of the bypass pipe 41 is connected to the second pipe 35, and the other end extends into the top of the tank 1 and is connected to the tank 1. The bypass pipe 41 is fixedly connected to the tank 1 by screws. The bypass pipe 41 is generally of DN20 specification and is connected to the second pipe 35 at a 45° angle. This connection method is beneficial for the diversion and flow of the agent. The bypass pipe 41 can be made of PVC pipe, which has the advantages of corrosion resistance and low price. The bypass pipe 41 extends to below the liquid surface inside the tank 1 at one end, which can avoid the generation of bubbles and splashing of the agent during the backflow process and improve the stability of the backflow. In this embodiment, the bypass valve 42 is a needle valve, which is fixedly connected to the bypass pipe 41 by a flange. The needle valve is used to regulate the flow rate of the bypass pipe 41. It is equipped with a dial to display the opening adjustment amount, which makes it convenient for operators to accurately control the diverted drug flow rate. The valve opening is changed by rotating the valve core. The needle valve can also be an electric needle valve to realize remote control and automatic adjustment. The first pressure sensor 43 is fixedly connected to the bypass pipe 41 by screws. The first pressure sensor 43 is electrically connected to the needle valve through the control system. The first pressure sensor 43 is used to measure the initial pressure of the drug being pumped into the second pipe 35 by the centrifugal pump 32. After the centrifugal pump 32 is started, the drug is delivered to the dosing port through the first pipe 31 and the second pipe 35. If the pressure in the second pipe 35 exceeds the preset value (0.3MPa), the needle valve achieves coarse adjustment by adjusting the opening to divert part of the flow rate, and initially reduces the pressure in the pipe.
[0043] Reference Figure 1 The pressure stabilizing assembly 5 includes a pressure stabilizing component 51 and a pressure relieving component 52. The pressure stabilizing component 51 includes a diaphragm pressure stabilizing tank 511 and a pressure stabilizing valve 512. The diaphragm pressure stabilizing tank 511 has an elastic diaphragm inside, which forms a sealed chamber with the shell of the diaphragm pressure stabilizing tank 511. The elastic diaphragm is generally made of rubber or other materials, which have good elasticity and sealing performance. When the pressure in the main pipeline fluctuates, the elastic diaphragm will deform to absorb the pressure fluctuation, thereby stabilizing the flow rate of the agent at the dosing port. The diaphragm pressure stabilizing tank 511 is vertically installed on one side of the second pipeline 35 through a flange. The flange connection ensures the stability and sealing of the connection. The pressure stabilizing valve 512 is fixedly connected to the end of the second pipeline 35 near the dosing port through a flange and is used to control the on / off switching of the agent flow rate.
[0044] Reference Figure 1The pressure relief component 52 includes a pressure relief pipe 521, a pressure reducing valve 522, and a second pressure sensor 523. In this embodiment, the pressure relief pipe 521 is a PVC pipe. One end of the pressure relief pipe 521 is connected to the second pipe 35, and the other end is connected to the bypass pipe 41 near the end of the tank 1. The connection between the pressure relief pipe 521 and the second pipe 35 is located between the diaphragm pressure stabilizing tank 511 and the pressure stabilizing valve 512. Both ends of the pressure relief pipe 521 are connected to the second pipe 35 and the bypass pipe 41 respectively through three-way valves. The pressure reducing valve 522 is fixedly connected to the pressure relief pipe 521 through a flange. The pressure reducing valve 522 can be a pilot-operated pressure reducing valve 52. 2. It has the advantages of fast response speed and high pressure regulation accuracy; the second pressure sensor 523 is fixedly connected to the second pipeline 35 by screws, and the second pressure sensor 523 is located between the pressure stabilizing valve 512 and the diaphragm pressure stabilizing tank 511. It is used to measure the pressure in the second pipeline 35 after being treated by the diaphragm pressure stabilizing tank 511. The second pressure sensor 523 is electrically connected to the pressure reducing valve 522 through the control system. When the pressure in the second pipeline 35 exceeds the preset value (0.3MPa), the pressure reducing valve 522 automatically opens to release pressure and return the excess agent to the tank 1; thus achieving the effects of reducing the failure rate, stabilizing the agent flow rate, and achieving precise dosing.
[0045] The implementation principle of a wastewater treatment agent delivery pipeline control system according to an embodiment of this application is as follows: the wastewater treatment agent delivery pipeline control system pre-treats the agent through the processing component 2, filtering impurities and stirring evenly; the pumping component 3 extracts and delivers the agent; the bypass component 4 adjusts the flow rate according to the pipeline pressure; and the pressure stabilizing component 5 stabilizes the pipeline pressure, ensuring that the agent is delivered stably and accurately to the wastewater treatment system. Compared with the prior art, this reduces the failure rate, improves the efficiency and quality of wastewater treatment, reduces environmental pollution, ensures the stability of the pipeline pressure and the accuracy of agent delivery, and improves the performance and reliability of the entire wastewater treatment agent delivery pipeline control system.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A control system for a wastewater treatment agent delivery pipeline, characterized in that: The system includes a tank (1), a pumping assembly (3), and a pressure stabilizing assembly (5). The tank (1) is used to hold the reagent. The pumping assembly (3) includes a first pipe (31), a centrifugal pump (32), a buffer (34), and a second pipe (35). The first pipe (31) is connected to the tank (1), and the other end is connected to the inlet of the centrifugal pump (32). The centrifugal pump (32) is fixed to a concrete foundation. The buffer (34) is connected to the first pipe (31). One end of the second pipe (35) is connected to the outlet of the centrifugal pump (32), and the other end is set as a dosing port. The pressure stabilizing component (5) includes a pressure stabilizing element (51) and a pressure relieving element (52). The pressure stabilizing element (51) includes a diaphragm pressure stabilizing tank (511) and a pressure stabilizing valve (512). The diaphragm pressure stabilizing tank (511) is connected to the second pipeline (35). The pressure stabilizing valve (512) is connected to the end of the second pipeline (35) near the dosing port. The pressure relieving element (52) includes a pressure relieving pipe (521), a pressure reducing valve (522), and a second pressure sensor (523). One end of the pressure relieving pipe (521) is connected to the second pipeline (35), and the other end is connected to the tank body (1). The connection point between 521 and the second pipe (35) is located between the diaphragm pressure stabilizing tank (511) and the pressure stabilizing valve (512). The pressure reducing valve (522) is connected to the pressure relief pipe (521). The second pressure sensor (523) is connected to the second pipe (35). The second pressure sensor (523) is electrically connected to the pressure reducing valve (522). The second pressure sensor (523) is located between the pressure stabilizing valve (512) and the diaphragm pressure stabilizing tank (511) and is used to measure the pressure in the second pipe (35) after the diaphragm pressure stabilizing tank (511) has processed.
2. The wastewater treatment agent delivery pipeline control system according to claim 1, characterized in that: It also includes a bypass assembly (4), which includes a bypass pipe (41), a bypass valve (42) and a first pressure sensor (43). One end of the bypass pipe (41) is connected to the second pipe (35), and the other end extends into the top of the tank (1) and is connected to the tank (1). The connection between the bypass pipe (41) and the second pipe (35) is located between the centrifugal pump (32) and the diaphragm pressure tank (511). The bypass valve (42) is connected to the bypass pipe (41) and is used to adjust the flow rate of the bypass pipe (41). The first pressure sensor (43) is connected to the bypass pipe (41) and is used to measure the initial pressure at which the centrifugal pump (32) pumps the agent into the second pipe (35). The first pressure sensor (43) is electrically connected to the bypass valve (42). The pressure relief pipe (521) is connected to the bypass pipe (41) at the end away from the second pipe (35).
3. The wastewater treatment agent delivery pipeline control system according to claim 2, characterized in that: The bypass pipe (41) is connected to the second pipe (35) in an oblique manner.
4. The wastewater treatment agent delivery pipeline control system according to claim 1, characterized in that: It also includes a processing component (2), which includes a first filter element (21). The first filter element (21) includes a dosing tank (211) and a filter screen (212). The dosing tank (211) is located at the top of the tank body (1). The bottom of the dosing tank (211) is connected to the inside of the tank body (1). The filter screen (212) is connected to the dosing tank (211). The filter screen (212) is inclined and its sidewall is attached to the sidewall of the dosing tank (211). The filter screen (212) is used to filter the medicine. The top of the dosing tank (211) is provided with an injection port (2111) for injecting the medicine.
5. A wastewater treatment agent delivery pipeline control system according to claim 4, characterized in that: The dosing tank (211) has a cleaning port (2112) at the lowest end of the filter screen (212), and the dosing tank (211) is equipped with a cleaning door (2113) at the cleaning port (2112); The processing component (2) further includes a cleaning component (22), which includes a scraper (221) and a cleaning source (222). The scraper (221) is slidably connected to the filter screen (212). The sliding direction of the scraper (221) is consistent with the tilting direction of the filter screen (212). The sliding area of the scraper (221) is slightly smaller than the area of the filter screen (212). The scraper (221) cleans the impurities on the filter screen (212). The cleaning source (222) is connected to the dosing tank (211). The cleaning source (222) is connected to the scraper (221) to drive the scraper (221) to move.
6. A wastewater treatment agent delivery pipeline control system according to claim 5, characterized in that: The processing component (2) further includes a stirring element (23), which includes a stirring rod (231), multiple stirring blades (232), and a stirring motor (233). The stirring rod (231) is located inside the tank (1), and the axis of the stirring rod (231) coincides with the axis of the tank (1). One end of the stirring rod (231) near the top of the tank (1) is rotatably connected to the tank (1). The multiple stirring blades (232) are all located inside the tank (1). The stirring blades (232) are arranged perpendicularly to the stirring rod (231), and one end of the stirring blades (232) is connected to the stirring rod (231). The housing of the stirring motor (233) is connected to the top of the tank (1), and the output shaft of the stirring motor (233) is coaxially fixed with the stirring rod (231). The stirring blades (232) stir the medicine.
7. A wastewater treatment agent delivery pipeline control system according to claim 4, characterized in that: The pumping assembly (3) further includes a second filter element (33), which is connected to the first pipe (31) and is used to perform secondary filtration of the medicine.
8. A wastewater treatment agent delivery pipeline control system according to claim 5, characterized in that: The cleaning source (222) includes a screw (2221), a guide rod (2222), a slide rod (2223), an insert rod (2224), and a cleaning motor (2226). The screw (2221) passes through the two side walls of the dosing tank (211) directly opposite each other. The screw (2221) is perpendicular to the side walls of the dosing tank (211) through which it passes. Both ends of the screw (2221) are rotatably connected to the two side walls of the dosing tank (211) directly opposite each other. 2221) is located on the side of the filter screen (212) near the top of the dosing tank (211). The screw (2221) passes through the two side walls of the dosing tank (211) and is connected to the highest and lowest ends of the filter screen (212) respectively. The guide rod (2222) is arranged parallel to the screw (2221), and both ends of the guide rod (2222) are fixed to the two side walls of the dosing tank (211). The slide rod (2223) is installed from the dosing tank (211) to the side of the tank body (1). The slide rod (2223) is perpendicular to the screw (2221). The end of the slide rod (2223) near the top of the dosing tank (211) is threaded to the screw (2221). The end of the slide rod (2223) away from the top of the dosing tank (211) is hollow. The insertion rod (2224) is coaxial with the slide rod (2223). The insertion rod (2224) is elastically inserted into the end of the slide rod (2223) away from the top of the dosing tank (211). The scraper (221) is connected to the end of the insertion rod (2224) away from the slide rod (2223). The cleaning motor (2226) is close to one end of the screw (2221). The housing of the cleaning motor (2226) is fixed to the dosing tank (211). The cleaning motor (2226) drives the screw (2221) to rotate forward and backward.