Control system applied to reclaimed water treatment

Abstract

The utility model provides a control system applied to reclaimed water treatment, which comprises a reclaimed water tank, a PLC (Programmable Logic Controller), an automatic control valve, a first reclaimed water conveying pipeline, a plurality of second reclaimed water conveying pipelines, a water pump motor, a water level sensor and a pollutant concentration detection sensor, the water pump motor is arranged at the bottom of the reclaimed water pool, the output end of the water pump motor is connected with one end of the first reclaimed water conveying pipeline, and the other end of the first reclaimed water conveying pipeline is connected with the second reclaimed water conveying pipelines. The automatic control valves are arranged between the first reclaimed water conveying pipeline and the plurality of second reclaimed water conveying pipelines; the water level sensor and the pollutant concentration detection sensor are arranged in the reclaimed water tank; and the water level sensor, the pollutant concentration detection sensor and the plurality of automatic control valves are all in signal connection with the PLC.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment control, in particular to a control system used for reclaimed water treatment. Background Art

[0002] At present, some industrial wastewater can meet the requirements of urban miscellaneous water after deep treatment in the wastewater treatment system. Such reclaimed water can be used for toilet flushing, landscaping, road cleaning, etc. If the reclaimed water enters the sewage system for sewage treatment, it will waste the various costs of the company's early wastewater deep treatment; second, it will occupy the daily average disposal scale of the existing wastewater treatment system and increase the cost of pollution control; third, it will increase the pressure on the sewage pipe and fail to achieve the company's clean production goals and save water resources. In order to effectively utilize and save water resources and reduce the discharge of sewage and wastewater, the reclaimed water can be used for factory toilet flushing, landscaping, and road cleaning through reclaimed water reuse equipment.

[0003] However, most of the existing reclaimed water reuse processes or equipment on the market currently only monitor the final reclaimed water results of the operation of the equipment or system. There is no function of using reclaimed water at a fixed time, fixed point or with set parameters, and no adjustable operation function based on the actual needs of reclaimed water reuse. Some sewage discharge enterprises do not use reclaimed water unless there is a shortage of water supply, and the utilization rate of reclaimed water reuse is low. Moreover, reclaimed water accumulates in the reclaimed water pool for a long time, which will produce scale, breed bacteria, and even turn into wastewater again, seriously wasting water resources. At the same time, there are still many impurities in the reclaimed water that has passed the preliminary pretreatment. Utility Model Content

[0004] The purpose of the utility model is to provide a control system for reclaimed water treatment to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical scheme: a control system applied to the treatment of reclaimed water, comprising a reclaimed water pool, a PLC controller, an automatic control valve, a first reclaimed water delivery pipeline, a plurality of second reclaimed water delivery pipelines, a water pump motor, a water level sensor, and a pollutant concentration detection sensor, wherein the water pump motor is arranged at the bottom of the reclaimed water pool and the output end of the water pump motor is connected with one end of the first reclaimed water delivery pipeline, the other end of the first reclaimed water delivery pipeline is connected with the plurality of second reclaimed water delivery pipelines, and the automatic control valve is arranged between the first reclaimed water delivery pipeline and the plurality of second reclaimed water delivery pipelines, the water level sensor and the pollutant concentration detection sensor are arranged inside the reclaimed water pool, and the water level sensor, the pollutant concentration detection sensor and the plurality of automatic control valves are all connected with the PLC controller signal.

[0006] Specifically, the plurality of second reclaimed water delivery pipelines are respectively connected to different terminal devices.

[0007] Specifically, it also includes a control end, and the control end is connected to the PLC controller signal.

[0008] Specifically, it also includes an alarm unit, which monitors and alarms the compliance of the reclaimed water with the standards and the water level according to the real-time monitoring data.

[0009] Specifically, it also includes a filtering mechanism, which includes a filtering assembly and slide rails installed on both sides of the inner wall of the middle water pool, wherein the slide rails are provided with sliders, and the middle of the sliders are provided with grooves, and both ends of the filtering assembly are provided with fixing rods, and the fixing rods are matched with the grooves.

[0010] Specifically, both sides of the slider are movably connected with a lifting rod and a fixing buckle.

[0011] Specifically, the filter assembly includes three layers of filter screens, the three layers of filter screens are all detachable and installable, and the mesh openings of the three layers of filter screens become smaller from top to bottom.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

[0013] The utility model provides a control system for reclaimed water treatment.

[0014] High degree of automation: Through the linkage of PLC controller, water level sensor and pollutant concentration detection sensor, automatic monitoring and control of the reclaimed water treatment process is realized, which reduces manual intervention and improves treatment efficiency.

[0015] Strong flexibility: Through the setting of multiple second greywater delivery pipelines and automatic control valves, the flow direction and treatment path of greywater can be flexibly adjusted according to actual conditions to adapt to different treatment needs and effectively improve the utilization rate of greywater.

[0016] Energy saving: Through the cooperation of water level sensor and PLC controller, the start and stop of water pump can be automatically controlled according to the actual water storage, avoiding unnecessary operation for a long time and saving energy and cost.

[0017] It can realize real-time monitoring of multiple links of the grey water supply system, effectively improve the utilization rate of grey water, avoid sewage recycling and secondary pollution of grey water, reduce the discharge of sewage and wastewater, reduce the pollution of the water environment, and alleviate the overload of urban sewers.

[0018] The debris is further removed by means of a detachable filter mechanism, and the filter mechanism can be disassembled at the same time, making it convenient to clean the filtered debris in a timely manner and to replace the filter components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a structural diagram of a control system for reclaimed water treatment provided by the utility model.

[0021] Figure 2 A flow chart of a control system for reclaimed water treatment provided by the utility model.

[0022] Figure 3 for Figure 1 A magnified schematic diagram of the structure in Figure 1.

[0023] Figure 4 Schematic diagram of the structural decomposition of the filtering mechanism.

[0024] Figure 5 Schematic diagram of the detachable connection of the three-layer filter of the filter component

[0025] In the figure, 1 is a grey water tank, 2 is a water pump motor, 3 is a first grey water delivery pipeline, 4 is a second grey water delivery pipeline, 5 is an automatic control valve, 6 is a water level sensor, 7 is a pollutant concentration detection sensor, 8 is a control end, 9 is an alarm unit, 10 is a PLC controller, 11 is a filter assembly, 12 is a slide rail, 13 is a slider, 14 is a groove, 15 is a fixing rod, 16 is a lifting rod, and 17 is a fixing buckle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention more obvious, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present invention.

[0027] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0028] It should be understood that the present invention can be implemented in different forms and should not be interpreted as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0029] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0030] In order to fully understand the present invention, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0031] See also Figure 1 and Figure 2 A control system for grey water treatment, comprising a grey water tank 1, a PLC controller 10, an automatic control valve 5, a first grey water delivery pipeline 3, a plurality of second grey water delivery pipelines 4, a water pump motor 2, a water level sensor 6, and a pollutant concentration detection sensor 7. The water pump motor 2 is arranged at the bottom of the grey water tank 1 and the output end of the water pump motor 2 is connected to one end of the first grey water delivery pipeline 3, the other end of the first grey water delivery pipeline 3 is connected to the plurality of second grey water delivery pipelines 4, and the automatic control valve 5 is arranged between the first grey water delivery pipeline 3 and the plurality of second grey water delivery pipelines 4. The water level sensor 6 and the pollutant concentration detection sensor 7 are arranged inside the grey water tank 1, and the water level sensor 6, the pollutant concentration detection sensor 7 and the plurality of automatic control valves 5 are all connected to the PLC controller 10 signal.

[0032] Exemplarily, the present invention provides a control system for grey water treatment. When the water level in the water tank 1 is higher than a certain level, the water level sensor 6 sends a signal to the PLC controller 10 and simultaneously starts the water pump motor 2 to pump the grey water into the first grey water delivery pipeline 3.

[0033] The other end of the first reclaimed water delivery pipeline 3 is connected to a plurality of second reclaimed water delivery pipelines 4. Through the control of the automatic control valve 5, the reclaimed water can be adjusted to flow to different treatment equipment or uses.

[0034] A pollutant concentration detection sensor 7 is provided inside the grey water pool 1. When it is detected that the pollutant concentration exceeds the set value, the sensor will send a signal to the PLC controller 10. At the same time, the automatic control valve 5 will be adjusted accordingly to send the grey water to the corresponding treatment equipment for treatment to ensure that the water quality of the outlet water meets the requirements.

[0035] The PLC controller 10 (S7-1200) performs data analysis and processing according to preset logic and algorithms to determine whether the reclaimed water meets the standards, whether water usage reminders are required, and whether there is a water level alarm.

[0036] According to the processing result, the control terminal 8 provides the operator with information such as water standard reaching reminder, water usage reminder and water level alarm.

[0037] The pollutant concentration in the pool and the change data of the water volume in the grey water pool 1 are collected and analyzed through the PLC controller 10 and the real-time detection equipment, and the grey water compliance reminder, water use reminder and water level alarm are fed back to the control terminal 8 to remind the staff to use grey water. By setting the grey water use parameters of the PLC controller 10, such as when the water storage in the grey water pool 1 reaches 80%, the company switches to grey water for flushing toilets; regularly watering green plants or controlling the grey water irrigation volume through the surplus, etc., the grey water supply equipment can achieve stable water supply and effective water use, and avoid the failure and damage of the reuse equipment caused by the pipeline pressure caused by the unstable water volume in the grey water reuse pipeline network.

[0038] Through this technical solution, real-time monitoring of multiple links in the grey water supply system can be achieved, effectively improving the utilization rate of grey water, avoiding sewage recycling and secondary pollution of grey water, reducing the discharge of sewage and wastewater, reducing pollution of the water environment, and alleviating the overload of urban sewers.

[0039] Specifically, the plurality of second reclaimed water delivery pipelines 4 are respectively connected to different terminal devices.

[0040] Exemplarily, a plurality of second grey water delivery pipelines 4 are respectively connected to different terminal devices for delivering the treated grey water to different purposes, such as flushing, irrigation or other reuse scenarios.

[0041] Specifically, it also includes a control terminal 8, and the control terminal 8 is connected to the PLC controller 10 by signal.

[0042] Exemplarily, the control terminal 8 is signal-connected to the PLC controller 10 to provide a human-computer interaction interface for operating and monitoring the entire grey water treatment system and realizing remote control.

[0043] Specifically, it also includes an alarm unit 9, which monitors and alarms the compliance of the reclaimed water with the standard and the water level according to the real-time monitoring data.

[0044] For details, see Figure 3 and Figure 4 , and also includes a filtering mechanism, which includes a filtering assembly 11 and slide rails 12 installed on both sides of the inner wall of the middle water tank 1, each of which is provided with a slider 13, and each of which has a groove 14 in the middle. Both ends of the filtering assembly 11 are provided with fixing rods 15, and the fixing rods 15 are matched with the grooves 14.

[0045] Exemplarily, when the pre-treated grey water enters the grey water tank 1, the impurities and mixtures remaining in the pre-treated grey water are further filtered by a filtering mechanism.

[0046] Specifically, both sides of the slider 13 are movably connected with a lifting rod 16 and a fixing buckle 17 .

[0047] Exemplarily, the portion where the fixing rod 15 fits in the groove 14 can be reinforced by a fixing buckle 17, and the slider 13 is lifted by the lifting rod 16, so that the slider 13 slides upward with the slide rail 12 with the filter assembly 11, which is convenient for the staff to disassemble the filter assembly 11.

[0048] For details, see Figure 5 The filter assembly 11 includes three layers of filter screens, which are all removable and installable, and the mesh openings of the three layers of filter screens become smaller from top to bottom.

[0049] For example, the three-layer filter can be detachably installed to facilitate filter replacement. The mesh size of the three-layer filter decreases from top to bottom to facilitate filtering impurities of different sizes, and the filtration through the three-layer filter is more thorough.

[0050] It should be noted that the PLC controller 10, water level sensor 6, pollutant concentration detection sensor 7 and water pump motor 2 used in the above embodiments are all conventional electronic components of technicians in this field. Their specific connection circuits and how to select specific models are common knowledge of technicians in this field, and the above embodiments will not be elaborated in detail.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A control system for reclaimed water treatment, characterized in that: It includes a grey water tank, a PLC controller, an automatic control valve, a first grey water delivery pipeline, multiple second grey water delivery pipelines, a water pump motor, a water level sensor, and a pollutant concentration detection sensor. The water pump motor is arranged at the bottom of the grey water tank and the output end of the water pump motor is connected to one end of the first grey water delivery pipeline, the other end of the first grey water delivery pipeline is connected to the multiple second grey water delivery pipelines, and the automatic control valve is arranged between the first grey water delivery pipeline and the multiple second grey water delivery pipelines. The water level sensor and the pollutant concentration detection sensor are arranged inside the grey water tank, and the water level sensor, the pollutant concentration detection sensor and the multiple automatic control valves are all connected to the PLC controller signal.

2. A control system for reclaimed water treatment according to claim 1, characterized in that: The plurality of second reclaimed water delivery pipelines are respectively connected to different terminal devices.

3. A control system for reclaimed water treatment according to claim 2, characterized in that: It also includes a control end, which is connected to the PLC controller by signal.

4. A control system for reclaimed water treatment according to claim 1, characterized in that: It also includes an alarm unit, which monitors and alarms the compliance of the reclaimed water with the standards and the water level according to the real-time monitoring data.

5. The control system for reclaimed water treatment according to claim 1, characterized in that: It also includes a filtering mechanism, which includes a filtering assembly and slide rails installed on both sides of the inner wall of the middle water pool, wherein the slide rails are provided with sliders, and the middle of the sliders are provided with grooves, and both ends of the filtering assembly are provided with fixing rods, and the fixing rods are matched with the grooves.

6. A control system for reclaimed water treatment according to claim 5, characterized in that: Both sides of the slider are movably connected with a lifting rod and a fixing buckle.

7. A control system for reclaimed water treatment according to claim 5, characterized in that: The filter assembly comprises three layers of filter screens, which are all detachable and installable, and the mesh openings of the three layers of filter screens become smaller from top to bottom.

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