Double-body type sewage treatment system

Abstract

The utility model relates to a double-body sewage treatment system, which is characterized in that a double-pipeline crusher, a double-self-adaptive pressure relief solid-liquid separator and a double treatment box are alternately used, and the problem that the use of a toilet needs to be stopped when the existing equipment is maintained is solved. The pipeline type crusher is mounted to crush sundries; the self-adaptive pressure relief solid-liquid separator intercepts particle size overrun fixing, a self-adaptive pressure relief valve can adjust the opening force of a valve clack through the compression amount of a spring, the more serious blockage is, the larger the pressure is, the larger the opening angle of the valve clack is, until all the valve clacks are opened, the pressure of the water pump is relieved, and the service life of the water pump is prolonged; the two independent treatment boxes not only can solve the problem of large displacement of the subway, but also provide convenience for transportation, installation and maintenance of the equipment. The equipment disclosed by the utility model not only can realize slag-free automatic operation, but also can solve the problem of manual cleaning, so that the labor cost is saved, the maintenance cost of the subway on sewage treatment equipment is reduced, and the cost is reduced and the benefit is increased.

Description

Technical Field

[0001] This utility model belongs to the field of sewage treatment technology, specifically relating to a dual-type sewage treatment system suitable for large public places. It is specifically designed for the front-end treatment and discharge of sewage and can effectively solve the problems of clogging, high maintenance costs, and environmental and hygiene hazards caused by manual cleaning in traditional sewage treatment equipment. Background Technology

[0002] In current large public buildings such as subways, shopping malls, and hospitals, traditional sewage treatment equipment generally suffers from problems such as easy blockage of pipes by solid debris, frequent pump maintenance, high costs of manual cleaning, and harsh operating environments. These issues not only increase the operating costs of enterprises but also place additional pressure on municipal sewage networks and terminal sewage treatment plants. Therefore, there is an urgent need for a sewage treatment system that can treat sewage at its source, achieve automatic sludge removal, reduce municipal pipeline blockage, and significantly reduce overall costs. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing sewage treatment equipment by proposing a dual-body sewage treatment system that enables preliminary crushing, solid-liquid separation, and safe discharge of sewage, effectively reducing the burden on municipal administration and management.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dual-body wastewater treatment system, comprising two in-line crushers, two adaptive pressure-relief solid-liquid separators, and a treatment tank. Wastewater enters the system through the inlet flange, first being crushed by the in-line crushers to remove large and medium-sized solid debris, and then entering the adaptive pressure-relief solid-liquid separators for efficient solid-liquid separation. The treated wastewater is temporarily stored in the treatment tank and finally pumped into the municipal sewer network by a sewage pump.

[0005] Specifically: the two pipeline crushers are respectively connected to the two adaptive pressure relief solid-liquid separators and the two processing tanks. The two adaptive pressure relief solid-liquid separators are also connected to the two processing tanks. The adaptive pressure relief solid-liquid separator includes an upper cylinder and a lower cylinder. A filter element is provided in the lower cylinder. An adaptive pressure relief valve is provided in the filter element. Several filter holes are opened on the filter element. The adaptive pressure relief valve includes a valve body installed at the bottom of the filter element. The valve body has a mounting hole and is fixed to the bottom of the filter element by screws. An adjusting bolt is provided at the center of the valve body. A valve disc is provided on the adjusting bolt above the valve body. An adjustable retaining ring is provided above the valve disc and at the upper end of the adjusting bolt. A spring is provided between the adjustable retaining rings. A fan-shaped water outlet is provided on the valve disc.

[0006] Furthermore: the processing tank includes a main processing tank and a secondary processing tank placed side by side, the main processing tank and the secondary processing tank are connected by a connecting pipe, a valve is provided on the connecting pipe, a sewage pump is provided in both the main processing tank and the secondary processing tank and connected to an adaptive pressure relief solid-liquid separator, a float level gauge is provided on the inner wall of the main processing tank and the secondary processing tank respectively, and an electromagnetic level gauge is provided on the outer wall respectively.

[0007] Furthermore, the bottoms of the two adaptive pressure relief solid-liquid separators are respectively connected to the sewage pumps in the main treatment tank and the auxiliary treatment tank via biased sewage inlet and outlet pipes.

[0008] Furthermore: There are two pipeline crushers, and one side of each is connected to the main processing box and the auxiliary processing box through a bypass pipe. An electronic sensor is installed on the bypass pipe near the pipeline crusher and above the pipeline crusher. An overflow pipe is provided between the two bypass pipes, and a vent is provided on the overflow pipe.

[0009] Furthermore: the two pipeline crushers are respectively equipped with valve two and valve three connected to the water inlet pipe. The water inlet pipe is a tee pipe, and the water inlet of the water inlet pipe is equipped with a water inlet flange.

[0010] Furthermore, one side of each of the two adaptive pressure relief solid-liquid separators is connected to a water outlet pipe via a bend, and the water outlet pipe is equipped with a valve four and a water outlet flange at the water outlet.

[0011] Furthermore, both of the aforementioned pipeline crushers are equipped with motors and reducers.

[0012] Furthermore, both the main processing box and the auxiliary processing box are made of SUS304 stainless steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The installation of this utility model's pipeline crusher and adaptive pressure relief solid-liquid separator effectively crushes and intercepts solid debris, preventing it from entering municipal pipelines and reducing the treatment load on sewage treatment plants and the maintenance pressure on municipal pipe networks from the source. The adaptive pressure relief solid-liquid separator, as the core processing unit, has an internal filter element that can intercept solids with excessive particle size, preventing blockage of subsequent pipelines and equipment. The device is also equipped with a pressure relief valve, which automatically releases pressure when the system is over-pressurized to protect the water pump and extend the equipment's lifespan.

[0015] The system has automatic cleaning and backwashing functions, eliminating the need for manual cleaning and significantly reducing enterprise maintenance costs and personnel hygiene risks.

[0016] The alternating operation mode of the main and auxiliary treatment tanks ensures continuous operation of the equipment. Combined with the liquid level monitoring and intelligent control system, it enables unattended operation and does not affect normal sewage treatment even during maintenance, ensuring continuous operation of sewage treatment and significantly reducing manual intervention. It is especially suitable for occasions with high traffic and large sewage generation.

[0017] This system is compact, easy to install and expand, and helps enterprises save on civil engineering and space costs. It has significant economic and social benefits. The fully enclosed design prevents sewage overflow and odor spread, improves the operating environment, and avoids secondary pollution. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only for more clearly illustrating the technical solutions in the embodiments of this utility model or the prior art. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front view of the overall structure of this utility model;

[0021] Figure 3 This is a side view of the overall structure of this utility model;

[0022] Figure 4 This is a top view of the overall structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the filter element structure of the adaptive pressure relief solid-liquid separator of this utility model;

[0024] Figure 6 This is a front view of the adaptive pressure relief valve of this utility model;

[0025] Figure 7 This is a side view of the adaptive pressure relief valve of this utility model;

[0026] Figure 8 This is a top view of the adaptive pressure relief valve of this utility model;

[0027] Figure 9 This is a schematic diagram of the system control principle of this utility model;

[0028] In the diagram: 1-Pipeline crusher, 101-Motor, 102-Valve 2, 103-Valve 3, 104-Inlet flange, 105-Inlet pipe.

[0029] 2-Adaptive pressure relief solid-liquid separator; 201-Valve 4; 202-Outlet flange; 203-Outlet pipe; 204-Valve body; 205-Valve disc; 206-Spring; 207-Adjustable retaining ring; 208-Adjusting bolt; 209-Mounting hole; 210-Fan-shaped outlet; 211-Adaptive pressure relief valve; 212-Filter element.

[0030] 3-Main treatment box, 301-Valve 1, 4-Secondary treatment box, 5-Connecting pipe, 6-Electromagnetic level gauge, 7-Float level gauge, 8-Sewage pump, 9-Electronic sensor, 10-Overflow pipe, 11-Ventilation hole, 12-Bypass pipe, 13-Offset sewage inlet / outlet pipe. Detailed Implementation

[0031] To enable those skilled in the art to better understand and implement the technical solution of this utility model, the present utility model will be further described below with reference to specific embodiments. However, the embodiments described are only for illustration and are not intended to limit the present utility model.

[0032] The structure of the pipeline crusher in this utility model is already disclosed prior art, and it belongs to the same applicant as this utility model. Its structural composition and working principle have both been disclosed. The publication number of the pipeline crusher structure is CN222076791U.

[0033] like Figures 1-4 The illustrated dual-system wastewater treatment system includes two inline pulverizers 1, two adaptive pressure relief solid-liquid separators 2, and two treatment tanks. The adaptive pressure relief solid-liquid separators 2 are mounted on a support. The two inline pulverizers 1 are respectively connected to the two adaptive pressure relief solid-liquid separators 2 and the two treatment tanks. The two adaptive pressure relief solid-liquid separators 2 are connected to the two treatment tanks.

[0034] The treatment tank includes a main treatment tank 3 and a secondary treatment tank 4 placed side by side. The secondary treatment tank 4 is located on one side of the main treatment tank 3. The main treatment tank 3 and the secondary treatment tank 4 are connected by a connecting pipe 5. A valve 301 is installed on the connecting pipe 5. Both the main treatment tank 3 and the secondary treatment tank 4 are equipped with a sewage pump 8 and an adaptive pressure relief solid-liquid separator 2, which are respectively connected by an offset sewage inlet / outlet pipe 13. The inner walls of the main treatment tank 3 and the secondary treatment tank 4 are respectively equipped with float level gauges 7, and the outer walls are respectively equipped with electromagnetic level gauges 6. There are two pipeline crushers 1. One side of each is connected to the main treatment tank 3 and the secondary treatment tank 4 through a bypass pipe 12. The port of the bypass pipe 12 extends to the bottom of the main treatment tank 3 and the secondary treatment tank 4. An electronic sensor 9 is installed on the bypass pipe 12 near and above the pipeline crusher 1. An overflow pipe 10 is provided between the two bypass pipes 12. A vent hole 11 is provided on the overflow pipe 10.

[0035] The two pipeline crushers 1 are respectively equipped with valve 2 102 and valve 3 103 connected to the water inlet pipe 105. The water inlet pipe 105 is a tee pipe with a water inlet flange 104 at the water inlet. The lower ends of the two pipeline crushers 1 are respectively connected to the adaptive pressure relief solid-liquid separator 2.

[0036] like Figures 5-8 The diagram shows the structure of the filter element and adaptive pressure relief valve in the adaptive pressure relief solid-liquid separator. The adaptive pressure relief solid-liquid separator is the core processing unit, consisting of an upper cylinder and a lower cylinder. The lower cylinder contains a filter element 212, which can intercept particles exceeding the size limit. The filter element 212 contains an adaptive pressure relief valve 211, which automatically relieves pressure to protect the water pump when there is overpressure. The adaptive pressure relief valve 211 includes a valve body 204 installed at the bottom of the filter element 212. An adjusting bolt 208 is located at the center of the valve body 204. A valve disc 205 is located on the adjusting bolt 208 above the valve body 204. An adjustable retaining ring 207 is located above the valve disc 205 and at the upper end of the adjusting bolt 208. A spring 206 is located between the adjustable retaining rings 207. A fan-shaped outlet 210 is opened on the valve disc 205.

[0037] The valve body 204 has a mounting hole 209 and is fixed to the bottom of the filter element 212 by screws; the filter element 212 has a number of filter holes, the size of which is determined according to 80% of the minimum flow channel size of the pump. The flow channel size is also different for pumps with different power and different head.

[0038] Both of the adaptive pressure relief solid-liquid separators 2 have a water outlet pipe 203 connected to one side of the upper cylinder via a bend. The water outlet pipe 203 is equipped with a valve 201 and a water outlet flange 202 at the water outlet.

[0039] When using the adaptive pressure relief valve 211, the opening force of the valve disc 205 is controlled by adjusting the compression of the spring 206. The opening pressure of the valve disc 205 is adjusted to 1.1 times the rated outlet pressure of the water pump (the outlet pressure of water pumps with different power and different head is different). The more severe the blockage and the greater the pressure, the larger the opening angle of the valve disc 205, until it is fully opened, thereby relieving pressure on the water pump and extending the service life of the water pump. When the adaptive pressure relief valve 211 is fully open, the area should be greater than the outlet area of ​​the water pump.

[0040] Working principle

[0041] like Figure 9As shown, underground sewage enters the system through the inlet flange, is crushed by a pipeline crusher, and then enters the adaptive pressure relief solid-liquid separator. Solid-liquid separation is achieved in this unit, with solid impurities being retained, and the sewage entering either the main treatment tank or the auxiliary treatment tank. The liquid level in the treatment tank is monitored in real time by a float and an electromagnetic level gauge. Once the set water level is reached, the intelligent control system starts the corresponding sewage pump to safely discharge the sewage into the municipal sewer network.

[0042] This system features dual treatment tanks, one in operation and one on standby, running alternately. When the main treatment tank needs maintenance or the liquid level is abnormal, it automatically switches to the secondary treatment tank to continue operation, ensuring uninterrupted wastewater treatment. An adaptive pressure relief valve automatically adjusts according to system pressure, promptly releasing pressure in case of overpressure, effectively protecting the water pump and extending equipment lifespan.

[0043] This invention is particularly suitable for public places such as subways, train stations, hospitals, and shopping malls. It can significantly reduce the operating costs of enterprises, alleviate the pressure on municipal pipeline dredging and terminal sewage treatment, and achieve environmentally friendly, safe, and efficient sewage treatment.

[0044] Precautions during system installation

[0045] When this equipment is installed above ground, the ground must be flat; when installed in a pit, it should be installed in a pit.

[0046] 2. The equipment's base foundation should be fixed with anchor bolts;

[0047] 3. Gate valves must be installed at the inlet and outlet of the equipment to facilitate equipment maintenance and repair;

[0048] 4. The equipment's vent pipe should be connected to the outdoors or to the building's drainage and ventilation system;

[0049] 5. A drainage ditch should be provided next to the equipment to facilitate drainage during maintenance and in case of emergency.

[0050] 6. For other aspects, please refer to the relevant specifications and requirements for civil engineering, structure, equipment installation, etc.

[0051] 7. Connect the power supply to ensure the equipment is powered on;

[0052] 8. Open the inlet valve of the equipment to allow wastewater to flow into the equipment;

[0053] 9. The equipment will automatically treat, lift, and transport the wastewater to the designated discharge point;

[0054] 10. Regularly check the equipment's operating status and address any abnormalities promptly.

[0055] Operating Instructions

[0056] 1. First, the water and power supply on site are connected, and the inlet and outlet water pipes are properly connected. Second, clean the inside of the main treatment tank and the auxiliary treatment tank thoroughly to ensure there are no foreign objects, and check whether any connections are loose.

[0057] 2. Check whether each component of the equipment is normal, and at the same time check whether the connection lines of the intelligent control system are correct, and whether there are any loose or disconnected wires. Finally, check whether the power supply of the control system is normal.

[0058] 3. In "Manual" mode:

[0059] 3.1 First, turn all the knobs on the sewage pump on the control panel to the "stop" position, and then turn the main knob to the "manual" position;

[0060] 3.2 Open the control panel and close the switches in the control cabinet in the following order: first the main switch, then the branch switches.

[0061] 3.3 Introduce clean water (for the first test) through the inlet flange and observe whether there is any leakage at the connection points of the tank during the water inlet process;

[0062] 3.4 When the water level reaches about two-thirds of the tank, manually turn on the sewage pumps in the main treatment tank and the auxiliary treatment tank. At this time, the corresponding outlet valves will open automatically to discharge the sewage into the municipal drainage network.

[0063] 3.5 When the inlet of the sewage pump is lower than the water level in the tank, the sewage pump should be manually stopped to complete one sewage discharge process.

[0064] 4. In "Automatic" mode:

[0065] 4.1 First, turn the main knob on the control panel to the "Auto" position. 4.2 Open the control panel and close the switches inside the control cabinet in the following order: first the main switch, then the branch switches.

[0066] 4.3 Introduce wastewater into the tank through the inlet flange. During the inlet process, observe whether there is any leakage at any of the connection points of the tank.

[0067] 4.4 When the water level in the tank rises to the position where the float level gauge switch automatically opens, the intelligent control system automatically starts the sewage pump 1 in the main treatment tank (at this time, the sewage pump in the auxiliary treatment tank is the standby pump). At this time, the outlet valve on the corresponding side automatically opens, and the sewage is discharged to the sewage inspection.

[0068] 4.5 When the water level drops to the set level, the sewage pump in the main treatment tank will automatically stop running, thus completing one sewage discharge process;

[0069] 4.6 When the water level rises again to the position where the float level gauge switch automatically opens, the intelligent control system will convert the control signal and the sewage pump in the auxiliary treatment tank will start automatically (at this time, the sewage pump in the main treatment tank is the standby pump). The subsequent working process is the same as that of the sewage pump in the main treatment tank.

[0070] 5. Alarm Device: If the sewage pump's drainage speed is less than the inflow speed, or if the sewage pump fails to start normally for some reason, and the liquid level in the tank exceeds the normal starting level of the sewage pump, the alarm device will activate. It will not only emit a piercing buzzer but also force the dual sewage pumps to start, lifting the sewage to the outside to prevent sewage from overflowing the tank. 6. Debris Removal: After the equipment is running normally, there is no need to remove debris. However, if blockages are found during routine inspections, debris should be removed promptly to troubleshoot the problem and prevent sewage overflow due to blockages.

[0071] 7. Troubleshooting for pipeline-type pulverizers: If a large amount of wastewater enters the bypass pipeline or the control panel displays a pulverizer malfunction, check immediately whether the pulverizer is stuck.

[0072] 8. Basic power supply requirements: The incoming power supply is a three-phase five-wire system with a rated voltage of 380V, and the capacity provided should be sufficient to support the simultaneous operation of all water pumps;

[0073] 9. The water pump must not be manually operated when there is no water, otherwise it may cause permanent damage to the equipment;

[0074] 10. When the equipment is in normal operation, it is recommended to perform daily inspections and periodic functional checks to detect and eliminate faults in a timely manner, so that the equipment can operate well.

[0075] 11. When repairing equipment installed in a pit, first open the cover for ventilation, and then carry out maintenance work after ventilating for half an hour to avoid personal injury accidents caused by lack of oxygen.

[0076] All content not described in detail in this utility model is prior art.

[0077] The above description is merely a preferred embodiment of this utility model and is not limited to the description in the specification and embodiments. Therefore, all equivalent changes or modifications made to the structure, features, and principles described in the claims of this utility model should be included within the scope of this utility model patent application.

Claims

1. A dual-system wastewater treatment system, comprising two inline pulverizers (1), two adaptive pressure relief solid-liquid separators (2), and two treatment tanks, wherein the two inline pulverizers (1) are respectively connected to the two adaptive pressure relief solid-liquid separators (2) and the two treatment tanks, and the two adaptive pressure relief solid-liquid separators (2) are connected to the two treatment tanks, characterized in that: The adaptive pressure relief solid-liquid separator (2) includes an upper cylinder and a lower cylinder. A filter element (212) is provided inside the lower cylinder. An adaptive pressure relief valve (211) is provided at the bottom of the filter element (212). Several filter holes are provided on the filter element (212). The adaptive pressure relief valve (211) includes a valve body (204) installed at the bottom of the filter element (212). The valve body (204) is provided with a mounting hole (209) and is fixed to the bottom of the filter element (212) by screws. An adjusting bolt (208) is provided at the center of the valve body (204). A valve disc (205) is provided on the adjusting bolt (208) above the valve body (204). An adjustable retaining ring (207) is provided above the valve disc (205) and at the upper end of the adjusting bolt (208). A spring (206) is provided between the adjustable retaining rings (207). A fan-shaped water outlet (210) is provided on the valve disc (205).

2. The dual-unit sewage treatment system according to claim 1, characterized in that: The processing tank includes a main processing tank (3) and a secondary processing tank (4) placed side by side. The main processing tank (3) and the secondary processing tank (4) are connected by a connecting pipe (5). A valve (301) is provided on the connecting pipe (5). Both the main processing tank (3) and the secondary processing tank (4) are equipped with a sewage pump (8) connected to an adaptive pressure relief solid-liquid separator (2). The inner walls of the main processing tank (3) and the secondary processing tank (4) are respectively equipped with float level gauges (7), and the outer walls are respectively equipped with electromagnetic level gauges (6).

3. The dual-unit sewage treatment system according to claim 1, characterized in that: The bottoms of the two adaptive pressure relief solid-liquid separators (2) are connected to the sewage pumps (8) in the main treatment tank (3) and the auxiliary treatment tank (4) respectively through the biased sewage inlet and outlet pipes (13).

4. The dual-unit sewage treatment system according to claim 1, characterized in that: Both of the above-top sides of the two pipeline crushers (1) are connected to the main processing box (3) and the auxiliary processing box (4) through bypass pipes (12). An electronic sensor (9) is provided on the bypass pipe (12) near the pipeline crusher (1) and above the pipeline crusher (1). An overflow pipe (10) is provided between the two bypass pipes (12), and a vent hole (11) is provided on the overflow pipe (10).

5. A dual-unit wastewater treatment system according to claim 4, characterized in that: The two pipeline crushers (1) are respectively equipped with valve two (102) and valve three (103) connected to the water inlet pipe (105). The water inlet pipe (105) is a three-way pipe, and the water inlet of the water inlet pipe (105) is provided with a water inlet flange (104).

6. The dual-unit sewage treatment system according to claim 1, characterized in that: The two adaptive pressure relief solid-liquid separators (2) are connected to a water outlet pipe (203) on one side of the upper cylinder by a bend. The water outlet pipe (203) is equipped with a valve (201) and a water outlet flange (202) is provided at the water outlet of the water outlet pipe (203).

7. A dual-unit wastewater treatment system according to claim 1, characterized in that: The two pipe-type crushers (1) are equipped with motors (101) and reducers.

8. A dual-unit sewage treatment system according to claim 2, characterized in that: Both the main processing box (3) and the auxiliary processing box (4) are made of SUS304 stainless steel.

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