Accurate monitoring system for sewage quality

Abstract

The utility model relates to an accurate monitoring system for sewage quality. The accurate monitoring system comprises a cabinet body, a sampling device, a pretreatment device, a sample reserving device, an online monitoring instrument, a control device and a heat dissipation device, by integrating the sampling device, the pretreatment device, the on-line monitoring instrument and the automatic control system, high-frequency accurate monitoring of water quality indexes of the sewage plant is realized, instrument blockage can be effectively reduced, the actual operation and maintenance workload of the on-line monitoring system of the sewage plant is reduced, the accuracy and reliability of monitoring data are improved, and the working efficiency is improved. After being applied, the system can completely replace manual laboratory detection of water quality indexes of a sewage plant, the detection frequency of the water quality indexes is greatly improved, and the manual workload is reduced.

Description

Technical Field

[0001] The utility model relates to a sewage water quality precision monitoring system, and relates to the technical field of sewage treatment. Background Art

[0002] With the increasing scale of sewage treatment plants, online water quality monitoring systems have become widely used. Compared to manual monitoring, online monitoring systems are faster, more time-efficient, and more efficient. By using appropriate online monitoring systems to monitor operational data, sewage treatment plants can take timely action and adjust processes to ensure the effectiveness of nitrogen and phosphorus removal in biochemical tanks, thereby ensuring consistent and consistent effluent quality. Currently, sewage treatment plants often use sensor technology to monitor water quality indicators. However, these instruments are often immersed in sewage for extended periods, causing bacteria and activated sludge to accumulate on the electrode membranes, which inevitably affects instrument accuracy. This leads to frequent failures of online monitoring instruments used in sewage treatment plants, high maintenance costs, and data reliability that cannot meet control requirements. The online acquisition of key water quality indicators such as ammonia nitrogen, nitrate nitrogen, and total phosphorus suffers from significant time lags, making it difficult to meet the real-time control requirements of rapidly changing sewage treatment processes. Therefore, to ensure accurate and stable process data measurement, there is an urgent need to develop a stable, reliable, easy-to-use, and continuous sewage quality monitoring system that can objectively and accurately reflect sewage changes.

[0003] The precise sewage quality monitoring system receives and compiles monitoring data, generates alarms for exceeding standards, and provides real-time online monitoring. Since the data collected online is nearly synchronized with changes in water quality, effective measures can be quickly implemented based on this data to adjust process and equipment operations in the event of operational failures or deterioration in influent and effluent water quality.

[0004] Therefore, it is necessary to build a precise sewage water quality monitoring system that can effectively reduce instrument blockage, reduce the actual operation and maintenance workload of the sewage plant online monitoring system, and improve the accuracy and reliability of monitoring data. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the technical problem to be solved by the present invention is to provide a sewage water quality accurate monitoring system.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a sewage water quality precision monitoring system, including a sampling device, a pretreatment device, a sample retention device, and an online monitoring instrument, wherein:

[0007] The sampling device includes a filter and a sampling pump connected in sequence, and the water outlet of the sampling device is connected to a pretreatment device and a sample retention device;

[0008] The outlet water of the pretreatment device is connected to an online monitoring instrument.

[0009] Preferably, the sampling pump is an electric diaphragm pump.

[0010] Preferably, the pretreatment device includes a first solenoid valve, a pretreatment membrane group, and a water production pump connected in sequence.

[0011] Preferably, the pretreatment membrane group is an MBR hard flat membrane.

[0012] Preferably, the MBR rigid flat membrane has a size of 22 cm×30 cm.

[0013] Preferably, the water production pump is a peristaltic pump.

[0014] Preferably, the sample retention device includes a second solenoid valve, a sample retention barrel, and an emptying valve connected in sequence.

[0015] Preferably, the online monitoring instrument is one of a COD online monitoring instrument, an ammonia nitrogen online monitoring instrument, a nitrate nitrogen online monitoring instrument, a total nitrogen online monitoring instrument, a total phosphorus online monitoring instrument, and an orthophosphate online monitoring instrument.

[0016] Preferably, the sampling device, pretreatment device, sample retention device, and online monitoring instrument are all installed inside a cabinet, and the cabinet is also provided with a control device and a heat dissipation device.

[0017] Preferably, the heat dissipation device is a backpack air conditioner, which is installed on the right outer wall of the cabinet.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The system integrates sampling devices, pretreatment devices, online monitoring instruments, and automatic control systems to achieve high-frequency and accurate monitoring of sewage treatment plant water quality indicators. It can effectively reduce instrument blockage, reduce the actual operation and maintenance workload of the sewage treatment plant online monitoring system, improve the accuracy and reliability of monitoring data, and establish an online monitoring system that integrates water quality analysis, data acquisition and transmission, and remote monitoring, which can truly reflect the sewage treatment situation.

[0020] 2. The system has the functions of receiving and compiling statistics of monitoring data and alarming when monitoring items exceed the standard. Since the data obtained by online detection is almost the synchronous result of water quality changes, when there is a failure in operation or the water quality of inlet and outlet water deteriorates, effective measures can be taken quickly based on these data to adjust the process and equipment operation.

[0021] 3. After application, this system can completely replace the manual laboratory testing of water quality indicators in sewage treatment plants, greatly improving the testing frequency of water quality indicators and reducing manual workload.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the external structure of the utility model;

[0025] In the figure: 100, cabinet, 200, sampling device, 300, pretreatment device, 400, sample retention device, 500, online monitoring instrument, 600, control device, 700, heat dissipation device, 201, filter, 202, sampling pump, 301, first solenoid valve, 302, pretreatment membrane group, 303, water production pump, 401, second solenoid valve, 402, sample retention barrel, 403, drain valve. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] like Figures 1 and 2 As shown, this embodiment provides a sewage water quality precision monitoring system, including a sampling device 200, a pretreatment device 300, a sample retention device 400, and an online monitoring instrument 500, wherein:

[0030] The sampling device 200 includes a filter 201 and a sampling pump 202 connected in sequence. The water outlet of the sampling device 200 is connected to the pre-treatment device 300 and the sample retention device 400.

[0031] The water outlet of the pre-treatment device 300 is connected to the online monitoring instrument 500 .

[0032] In the embodiment of the present invention, the sampling pump 202 is an electric diaphragm pump.

[0033] In the embodiment of the present invention, the pretreatment device 300 includes a first solenoid valve 301 , a pretreatment membrane group 302 , and a water production pump 303 , which are connected in sequence.

[0034] In the embodiment of the present invention, the pretreatment membrane group 302 is an MBR hard flat membrane.

[0035] In the embodiment of the present invention, the size of the MBR hard flat membrane is 22 cm×30 cm.

[0036] In the embodiment of the present utility model, the water production pump 303 is a peristaltic pump.

[0037] In the embodiment of the present invention, the sample retention device 400 includes a second solenoid valve 401 , a sample retention barrel 402 , and an emptying valve 403 which are connected in sequence.

[0038] In an embodiment of the present utility model, the online monitoring instrument 500 is one of a COD online monitoring instrument, an ammonia nitrogen online monitoring instrument, a nitrate nitrogen online monitoring instrument, a total nitrogen online monitoring instrument, a total phosphorus online monitoring instrument, and an orthophosphate online monitoring instrument.

[0039] In the embodiment of the present invention, the sampling device 200 , the pretreatment device 300 , the sample retention device 400 , and the online monitoring instrument 500 are all installed inside the cabinet 100 , and the cabinet 100 is also provided with a control device 600 and a heat dissipation device 700 .

[0040] In the embodiment of the present invention, the heat dissipation device 700 is a backpack air conditioner, which is installed on the right outer wall of the cabinet 100.

[0041] In summary, the sewage water quality precision monitoring system, through the integration of sampling devices, pretreatment devices, online monitoring instruments, and automatic control systems, realizes high-frequency and precise monitoring of sewage treatment plant water quality indicators. It can effectively reduce instrument blockage, reduce the actual operation and maintenance workload of the sewage treatment plant online monitoring system, improve the accuracy and reliability of monitoring data, and establish an online monitoring system integrating water quality analysis, data acquisition and transmission, and remote monitoring, which can truly reflect the sewage treatment situation.

[0042] The working mode of the utility model is described below:

[0043] After the wastewater passes through the filter to remove impurities, it enters the pretreatment membrane group through a sampling pump to remove smaller impurities. It then enters the online monitoring instrument for testing water quality indicators such as COD, ammonia nitrogen, nitrate nitrogen, TN, and TP, achieving high-frequency and accurate monitoring of water quality indicators. At the same time, the control device sets the upper limit of water quality indicators exceeding the standard. When the water quality exceeds the standard and the alarm is triggered, the second solenoid valve is opened, and the wastewater enters the sample retention bucket, so that the water sample exceeding the standard can be retained for further analysis and detection of the cause of the exceedance.

[0044] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A sewage water quality precision monitoring system, characterized by: It comprises a sampling device (200), a pre-processing device (300), a sample retention device (400), and an online monitoring instrument (500), wherein: The sampling device (200) comprises a filter (201) and a sampling pump (202) connected in sequence, and the water outlet of the sampling device (200) is connected to a pre-treatment device (300) and a sample retention device (400); The water outlet of the pretreatment device (300) is connected to an online monitoring instrument (500).

2. The sewage water quality precision monitoring system according to claim 1 is characterized by: The sampling pump (202) is an electric diaphragm pump.

3. The sewage water quality precision monitoring system according to claim 1, characterized in that: The pretreatment device (300) comprises a first solenoid valve (301), a pretreatment membrane group (302), and a water production pump (303) which are connected in sequence.

4. The sewage water quality precision monitoring system according to claim 3 is characterized by: The pretreatment membrane group (302) is an MBR hard flat membrane.

5. The sewage water quality precision monitoring system according to claim 4 is characterized by: The MBR rigid flat membrane has a size of 22 cm×30 cm.

6. The sewage water quality precision monitoring system according to claim 3, characterized in that: The water production pump (303) is a peristaltic pump.

7. The sewage water quality precision monitoring system according to claim 1, characterized in that: The sample retention device (400) comprises a second solenoid valve (401), a sample retention barrel (402), and an emptying valve (403) which are connected in sequence.

8. The sewage water quality precision monitoring system according to claim 1, characterized in that: The online monitoring instrument (500) is one of a COD online monitoring instrument, an ammonia nitrogen online monitoring instrument, a nitrate nitrogen online monitoring instrument, a total nitrogen online monitoring instrument, a total phosphorus online monitoring instrument, and an orthophosphate online monitoring instrument.

9. The sewage water quality precision monitoring system according to claim 1, characterized in that: The sampling device (200), the pre-processing device (300), the sample retention device (400), and the online monitoring instrument (500) are all installed inside the cabinet (100). The cabinet (100) is also provided with a control device (600) and a heat dissipation device (700).

10. The sewage water quality precision monitoring system according to claim 9, characterized in that: The heat dissipation device (700) is a backpack air conditioner, which is installed on the right outer wall of the cabinet (100).

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