Incoming water COD concentration water quality compensation device

Abstract

The utility model discloses an incoming water COD (Chemical Oxygen Demand) concentration water quality compensation device. The device is installed on a water pipe, the water pipe is connected with a sentry system toxicity early warning module, a pipeline flowmeter, a COD detector and a peristaltic pump, and the peristaltic pump is further connected with a medicine tank. Wherein the pipeline flowmeter, the COD detector and the peristaltic pump are all connected with a PLC (Programmable Logic Controller) control module, and the PLC control module comprises an incoming water quality monitoring module and a water quality compensation adjusting module. According to the incoming water COD concentration water quality compensation device disclosed by the utility model, proper chemical agents can be automatically added or removed according to the water quality concentration condition monitored by the sensor, and the water quality is automatically adjusted to be kept in a proper range, so that the incoming water COD quality is balanced, and the operation of a sentry system is ensured.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, and particularly relates to a device for compensating the water quality of the influent COD concentration. Background Art

[0002] The sentinel system is a water quality early warning sensor based on the technology of microbial fuel cell (MFC). It can use the microorganisms on the electrode to degrade the organic matter in the sewage to generate current to monitor heavy metals, inhibitory or toxic substances in the raw water. Among them, the change of the organic matter (COD) concentration of the influent has a great impact on the monitoring accuracy. Especially during rainfall, the significant reduction of the organic matter (COD) concentration of the influent will cause the sensor to basically lose its monitoring ability. Therefore, it is necessary to set up a corresponding water quality compensation device to compensate the organic matter (COD) concentration of the influent to ensure the stability of the water quality, so as to ensure that the sensor can only effectively and real-time warn of heavy metals, inhibitory or toxic substances in the raw water and ensure the smooth operation of the sentinel system. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides a device for compensating the water quality of the influent COD concentration, which can automatically add or remove appropriate chemical agents according to the water quality concentration monitored by the sensor, and automatically adjust the water quality to keep it within a suitable range, so as to balance the influent COD water quality and ensure the operation of the sentinel system.

[0004] According to one aspect of the utility model, a device for compensating the water quality of the influent COD concentration is provided, which is installed on a water pipe. A sentinel system toxicity warning module, a pipeline flowmeter, a COD detector and a peristaltic pump are respectively connected to the water pipe, and the peristaltic pump is also connected to a medicine tank; wherein, the pipeline flowmeter, the COD detector and the peristaltic pump are all connected to a PLC control module, and the PLC control module includes an influent water quality monitoring module and a water quality compensation adjustment module.

[0005] In some embodiments, the water pipe is connected to a water pump. The advantage is that the water pump is used to generate power so that the influent water can pass through the water pipe.

[0006] In some embodiments, the water pipe is made of PVC material. The advantage is that the material of the water pipe is described.

[0007] In some embodiments, a first window is arranged at the connection between the COD detector and the water pipe. The advantage is that the first window can be used as a pressure relief port.

[0008] In some embodiments, a second window is provided at the connection between the peristaltic pump and the water pipe. The advantage is that the second window can also serve as a pressure relief port.

[0009] In some embodiments, the drug in the medicine tank is a carbon source. The advantage is that using a carbon source can compensate for the COD concentration in the raw water. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural diagram of a device for compensating the water quality of the incoming water COD concentration according to an embodiment of the present invention;

[0011] Figure 2 is Figure 1 a partial structural schematic diagram of the device for compensating the water quality of the incoming water COD concentration shown;

[0012] Figure 3 is Figure 1 the internal module diagram of the PLC control module shown.

[0013] In the figure: water pipe 1, sentinel system toxicity warning module 2, pipeline flowmeter 3, COD detector 4, peristaltic pump 5, medicine tank 6, PLC control module 7, water pump 8, first window 9, second window 10, incoming water quality monitoring module 11, water quality compensation adjustment module 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] As Figures 1-3 shown, the water quality compensation device is installed on the water pipe 1 through which the incoming water passes. Among them, a sentinel system toxicity warning module 2 is connected to the water pipe 1.

[0016] In addition, the water pipe 1 is also connected to a water pump 8, and the water pump 8 is used to generate power so that the incoming water can pass through the water pipe 1.

[0017] Preferably, the water pipe 1 is made of PVC material.

[0018] The water quality compensation device mainly includes a pipeline flowmeter 3, a COD detector 4, a peristaltic pump 5, a medicine tank 6, a PLC control module 7, etc. Among them, the specific installation positions and uses of each structure are described as follows.

[0019] The pipeline flowmeter 3 is connected to the water pipe 1 and can be used to detect the flow rate of water in the water pipe 1.

[0020] The COD detector 4 is connected to the water pipe 1 and can be used to detect the COD concentration of water in the water pipe 1. Among them, a first window 9 is provided at the connection between the COD detector 4 and the water pipe 1.

[0021] The peristaltic pump 5 is connected to the water pipe 1, and at the same time, the peristaltic pump 5 is also connected to the medicine tank 6. Then, when the peristaltic pump 5 operates, it can add the medicine (such as carbon source) in the medicine tank 6 into the water pipe 1 to compensate for the COD concentration of the water in the water pipe 1. Wherein, a second window 10 is provided at the connection between the peristaltic pump 5 and the water pipe 1.

[0022] The PLC control module 7 is respectively connected to the pipeline flowmeter 3, the COD detector 4 and the peristaltic pump 5, and can control the operation of the pipeline flowmeter 3, the COD detector 4 and the peristaltic pump 5. Wherein, the PLC control module 7 includes an incoming water quality monitoring module 11 and a water quality compensation adjustment module 12. The incoming water quality monitoring module 11 can be used to cooperate with the COD detector 4 to monitor the concentration of incoming water organic matter (COD) in real time. The water quality compensation adjustment module 12 can be used to calculate the required medicine dosage, and cooperate with the control command to control the operation cycle and rotation speed of the peristaltic pump 5, etc., to ensure that an appropriate amount of medicine is added.

[0023] When using this water quality compensation device, first, the sewage as raw water is introduced into the water pipe 1 through the operation of the water pump 8, and a certain flow rate is ensured. The first window 9 and the second window 10 can be used as pressure relief ports. At this time, the pipeline flowmeter 3 can monitor the flow rate in the water pipe 1 in real time, and the COD detector 4 can monitor the COD concentration of the raw water in real time, and both are transmitted to the PLC control module 7. Then, the water quality compensation adjustment module 12 in the PLC control module 7 calculates the required medicine dosage, and drives the peristaltic pump 5 to add the medicine in the medicine tank 6 into the water pipe 1, so as to achieve the effect of monitoring the COD concentration in real time and keeping it above the set value. And during the whole process, the sentinel system toxicity warning module 2 can give a real-time warning according to the monitoring data.

[0024] For example, when the value collected by the COD detector 4 is lower than a certain critical value, the PLC control module 7 sends a signal to the peristaltic pump 5 to make the peristaltic pump 5 operate to add the medicine in the medicine tank 6 into the water pipe 1; and after the value collected by the COD detector 4 is higher than this critical value, the PLC control module 7 sends a signal to the peristaltic pump 5 to make the peristaltic pump 5 stop operating.

[0025] Thus, through the use of this device, the data monitored by the sentinel system toxicity warning module 2 can tend to be stable, avoiding the influence of the fluctuation of the organic matter concentration on the monitoring effect, and can quickly, accurately and reliably monitor the toxicity of the raw water.

[0026] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the creative concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A water quality compensation device for COD concentration of incoming water, installed on a water pipe (1), characterized in that: The water pipe (1) is respectively connected to a sentinel system toxicity warning module (2), a pipeline flow meter (3), a COD detector (4) and a peristaltic pump (5), and the peristaltic pump (5) is also connected to a medicine tank (6); wherein the pipeline flow meter (3), the COD detector (4) and the peristaltic pump (5) are all connected to a PLC control module (7), and the PLC control module (7) includes an incoming water quality monitoring module (11) and a water quality compensation adjustment module (12).

2. The water quality compensation device for COD concentration of incoming water according to claim 1, characterized in that: The water pipe (1) is connected to a water pump (8).

3. The water quality compensation device for COD concentration of incoming water according to claim 1, characterized in that: The water pipe (1) is made of PVC material.

4. The water quality compensation device for COD concentration of incoming water according to claim 1, characterized in that: A first window (9) is provided at the connection between the COD detector (4) and the water pipe (1).

5. The water quality compensation device for COD concentration of incoming water according to claim 1, characterized in that: A second window (10) is provided at the connection between the peristaltic pump (5) and the water pipe (1).

6. The water quality compensation device for COD concentration of incoming water according to claim 1, characterized in that: The medicine in the medicine tank (6) is a carbon source.

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