CN221650344U - Multi-point online detection system for sewage plant - Google Patents

Abstract

The utility model discloses a multi-point on-line detection system for a sewage plant, which comprises a plurality of sampling channels communicated with a sampling area and detection points, wherein each sampling channel comprises a pumping pump, a sampling bottle and a sampling control valve, the pumping pump is arranged in a pipeline communicated with the sampling bottle and the sampling area, the sampling control valve is connected in a drainage pipeline of the sampling bottle, the detection points comprise a sample storage bottle and a detector, each sampling bottle is communicated with the sample storage bottle through a conveying pipeline, and the inlet end of the conveying pipeline is communicated with the upper water level of the sampling bottle. According to the multi-point on-line detection system for the sewage plant, disclosed by the utility model, the sample liquid in each sampling area is pumped into the sampling bottle through the sampling channel for multi-point detection, the sample liquid is deposited in the sampling bottle for a period of time, then the upper-layer clarified water body is conveyed into the sample storage bottle, the detector is not shielded by sludge, the detector is detected as clarified liquid, the detection accuracy is improved, the sampling bottle is automatically rinsed, and the automation degree is high.

Description

A multi-point online detection system for sewage treatment plants

Technical Field

The utility model relates to the technical field of water treatment, in particular to a multi-point online detection system for a sewage plant.

Background Art

In order to better control the process parameters of the biochemical pool, the pollution factors in the biochemical pool of the sewage plant need to be tested regularly. The rationality of the process parameter setting will directly affect the total effluent quality. Therefore, it is particularly important to obtain the accuracy of the effluent quality of the biochemical pool. Once the detection error of individual pollution factors is large, that is, the actual situation is exceeded and cannot be detected, but no system is set up to reduce the pollution factor subsequently, the effluent will affect the water environment of the receiving water body after reaching the total effluent.

Since there are usually more than one biological pool in a sewage treatment plant, and each group of biochemical pools has many pollution factors to detect, there is a phenomenon that the same pollution factors are detected in different areas. The current measures taken are to set up a single detection instrument for real-time monitoring in each corresponding area. Even if the pollution factors detected in different areas are the same, another detection device is also set up. The object of the biochemical pool detection is the sludge mixture, and the detection probe is often in the sludge mixture and will adhere to a lot of sludge. Since the detection methods are mostly infrared, chemical reaction and other methods, this method will affect the detection accuracy, which is different from the actual total effluent detection object being clear water. Moreover, there are many instruments and the cost of each instrument is high. This method of using multiple instruments and multiple points to detect the sludge mixture to obtain the water quality of the biochemical pool has the problems of low detection accuracy, high daily maintenance costs and high investment costs.

In view of this, it is necessary to propose a multi-point online detection system for sewage treatment plants to solve the above defects.

Utility Model Content

The main purpose of the utility model is to provide a multi-point online detection system for a sewage treatment plant, aiming to solve the problems of low existing detection accuracy, high daily maintenance costs and high investment costs.

To achieve the above-mentioned purpose, the utility model provides a multi-point online detection system for a sewage treatment plant, including a plurality of sampling channels connected to different sampling areas of a biochemical pool and detection points connected to the plurality of sampling channels.

Each of the sampling channels includes a pumping pump, a sampling bottle and a sampling control valve. The pumping pump is arranged in a pipe connecting the sampling bottle and the sampling area, and is used to pump the sewage in the biochemical pool into the sampling bottle. The sampling control valve is connected to the drainage pipe of the sampling bottle, and is used to control the discharge of the sample liquid in the sampling bottle.

The detection point includes a sample storage bottle, a detector arranged in the sample storage bottle, and a sample storage control valve arranged in a drainage pipe of the sample storage bottle.

Each of the sampling bottles is connected to the sample storage bottle through a delivery pipeline, and the inlet end of the delivery pipeline is connected to the upper water level of the sampling bottle.

Preferably, the sampling control valve and the sample storage control valve are both solenoid valves.

Preferably, the biochemical pool has six sampling areas, and each sampling area is connected to the sampling channel.

Preferably, the sampling control valve and the sample storage control valve are connected with a timing switch.

Preferably, each of the sampling channels further comprises a first overflow pipe, the inlet end of the first overflow pipe is connected to the upper water level of the sampling bottle, and the outlet end of the first overflow pipe is connected to the drainage pipe of the sampling bottle.

Preferably, the detection point further comprises a second overflow pipe, the inlet end of the second overflow pipe is connected to the upper water level of the sample storage bottle, and the outlet end of the second overflow pipe is connected to the drainage pipe of the sample storage bottle.

Preferably, a control valve for controlling the on-off of the delivery pipeline is also provided in the delivery pipeline.

Preferably, the sampling control valve and the sample storage control valve are both connected to a timing switch for controlling their operation.

Preferably, the detector comprises a detection probe and an instrument box, the detection probe extends into the sampling bottle, and the instrument box is located outside the sampling bottle.

Compared with the prior art, the sewage treatment plant multi-point online detection system provided by the utility model has the following beneficial effects:

The multi-point online detection system for a sewage treatment plant provided by the utility model pumps the sample liquid in each sampling area into the sampling bottle through the sampling channels set up. After the sample liquid is precipitated in the sampling bottle for a period of time, the clarified water in the upper layer of the sampling bottle is transported to the sample storage bottle through the transport pipeline for detection. In this way, the sample liquid detected by the detector is clarified water, rather than sample liquid with sludge. The outside of the detector will not be blocked by sludge and affect the detection result. Therefore, the detector for detecting clarified liquid has greatly improved its detection accuracy, and does not require daily calibration by professionals. Each sampling channel can work independently or multiple channels can work simultaneously, each of which is connected to a different detection area to detect pollution factors in different areas. Moreover, the sampling bottle can be automatically rinsed, and the detection system has low cost and high degree of automation.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

FIG1 is a schematic structural diagram of a multi-point online detection system for a sewage treatment plant provided by the utility model.

The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Please refer to Figure 1. The utility model provides a multi-point online detection system for a sewage treatment plant. The multi-point online detection system for a sewage treatment plant is used to detect pollution factors in various functional areas of a sewage pool in a sewage treatment plant. The multi-point online detection system for a sewage treatment plant includes a plurality of sampling channels 1 connected to different sampling areas of a biochemical pool 10, and detection points 3 connected to the plurality of sampling channels 1. Each of the sampling channels 1 includes a pumping pump 11, a sampling bottle 13, and a sampling control valve 15. The pumping pump 11 is arranged in a pipeline connecting the sampling bottle 13 and the sampling area to pump the sewage in the biochemical pool 10 into the sampling bottle 13, and the sampling control valve 15 is connected to the drainage pipe 7 of the sampling bottle 13 to control the discharge of the sample liquid in the sampling bottle 13. The detection point 3 includes a sample storage bottle 31, a detector 33 arranged in the sample storage bottle 31, and a sample storage control valve 35 arranged in the drainage pipe of the sample storage bottle 31. Each sampling bottle 13 is connected to the sample storage bottle 31 through a delivery pipe 5, and the inlet end of the delivery pipe 5 is connected to the upper water level of the sampling bottle 13. It should be explained that the upper water level refers to the position where the liquid loaded in the sampling bottle 13 or the sample storage bottle 31 is close to the water surface.

The sample liquid in each sampling area is pumped into the sampling bottle 13 through the sampling channels 1. After the sample liquid settles in the sampling bottle 13 for a period of time, the clarified water in the upper layer of the sampling bottle 13 is transported to the sample storage bottle 31 through the delivery pipe 5 for multi-point detection. In this way, the sample liquid detected by the detector 33 is clarified water, not sludge-containing sample liquid. The outside of the detector 33 will not be blocked by sludge and affect the detection result. Therefore, the detector 33 for detecting clarified liquid greatly improves its detection accuracy, does not require daily calibration by professionals, and saves manpower. Each sampling channel can work independently or multiple channels can work simultaneously. Each channel connects to different detection areas to detect pollution factors in different areas. Moreover, the sampling bottle 13 can be automatically rinsed, and the detection system has low cost and high automation.

Specifically, in this embodiment, the sampling control valve 15 and the sample storage control valve 35 are both electromagnetic valves. The electronic valve is installed in the drainage pipe 7 of the sampling bottle 13 to control the discharge of the sewage sampled in the sampling bottle 13.

Preferably, in this embodiment, the biochemical pool 10 has six sampling areas, which are the functional areas mentioned above. As shown in FIG1 , the sampling areas are A, B, C, D, E, and F, respectively, and each of the sampling areas (functional areas) may be provided with the sampling channel 1. In this embodiment, the sampling channel 1 connects the two areas B and E, and is used to detect the pollution factors of the two sampling areas B and E.

The drainage pipe 7 of each sampling bottle 13 is connected to the processing biochemical pool 30 through the sampling control valve 15. After the sampled sewage is loaded in place, the clarified water in the upper layer of the sampling bottle 13 enters the sample storage bottle 31. After the detection is completed, the sampled sewage in the sampling bottle 13 is discharged through the drainage pipe 7 to facilitate sampling in the next sampling area.

Each of the sampling channels 1 further includes a first overflow pipe 17, the inlet end of which is connected to the upper water level of the sampling bottle 13, and the outlet end is connected to the drainage pipe 7 of the sampling bottle 13. The detection point 3 further includes a second overflow pipe 37, the inlet end of which is connected to the upper water level of the sample storage bottle 31, and the outlet end is connected to the drainage pipe 36 of the sample storage bottle 31. It can be understood that the setting function of the overflow pipe is that when the sampled water in the sampling bottle 13 or the sample storage bottle 31 exceeds the water level, the excess water is discharged into the treatment biochemical pool 30 through the overflow pipe.

It can be understood that in order to more conveniently control the delivery of the sampled liquid by the sampling bottle 13, a control valve 18 for controlling its on and off is also provided in the delivery pipeline 5. The control valve 18 is also a solenoid valve, and a timing switch 181 is also connected to the control valve 18 to control its timing start and stop.

The sample storage control valve 35 is arranged in the drainage pipe of the sample storage bottle 31 , the inlet end of the second overflow pipe 37 is connected to the upper water level of the sample storage bottle 31 , and the outlet end is connected to the drainage pipe of the sample storage bottle 31 .

In addition, the sampling control valve 15 and the sample storage control valve 35 are also connected to a timing switch 16 for controlling their operation. The timing switch 16 controls the opening and closing of the sampling control valve 15 and the sample storage control valve 35 according to the detection requirements. After each test, after opening the sampling control valve 15 and the sample storage control valve 35, the sample liquid in the sampling bottle 13 and the sample storage bottle 31 is discharged. For example, in 24 hours, it is necessary to sample multiple sampling areas (functional areas) every 2 hours. According to the sampling completion time, the timing switch controls the valve to open for discharge. Moreover, the start and stop of the pumping pump 11 can also be controlled by the timing switch 20. For example, in 24 hours, it is necessary to sample multiple sampling areas (functional areas) every 2 hours. The pumping pump is first set to start at a fixed time every 2 hours, and the pump stops after starting according to the preset working time.

Specifically, in this embodiment, the detector 33 includes a detection probe 331 and an instrument box 333 . The detection probe 331 extends into the sampling bottle 13 , and the instrument box 333 is located outside the sampling bottle 13 , so that an operator can operate the instrument box 333 easily.

Specifically, taking the detection of the terminal pollution factor of area B as an example, the first instantaneous sample parameter is taken from an even point or an odd point, and the sampling point 2 of the pipeline connected to the pumping pump 11 extends into the B sampling area of the biochemical pool 10. First, the timing switch supplies power to the pumping pump 11, and the electric metering pump starts to run. When the liquid level of the sampling bottle 13 is close to the overflow level, the sampling control valve 15 is started to empty and rinse the sampling bottle 13 to prevent the last mixed liquid from affecting this detection. After rinsing, the sampling control valve 15 is closed. When the liquid level reaches a certain level of the sampling bottle 13, the power supply of the pumping pump 11 is turned off. After the mud and water are separated well, the sample storage control valve 35 is started again to make the clear water submerge the detection probe 331 (the detection probe 331 can monitor it in real time or produce results after a period of time), the sample storage control valve 35 is closed, and then the sample storage control valve 35 is opened to rinse the sample storage bottle 31. After rinsing, the sample storage bottle control valve 35 is closed. Finally, the clarified water body is tested, and the test data is uploaded to the central control as the test index of even or odd points.

It is worth mentioning that all pollution factors detected by the biochemical pool, such as temperature, pH, ORP, NH ₄ ⁺ , NO ₃ ⁻ , NO ₂ ⁻ in each functional area of the biochemical pool 10 , can be detected by this system.

The multi-point online detection system for a sewage treatment plant provided by the utility model pumps the sample liquid in each sampling area into the sampling bottle 13 through the sampling channels set up. After the sample liquid is precipitated in the sampling bottle 13 for a period of time, the clarified water in the upper layer of the sampling bottle 13 is transported to the sample storage bottle 31 through the conveying pipe 5 for multi-point detection. In this way, the sample liquid detected by the detector 33 is clarified water, rather than the sample liquid with sludge. The outside of the detector 33 will not be blocked by the sludge and affect the detection result. Therefore, the detector 33 for detecting clarified liquid greatly improves its detection accuracy, and does not require daily calibration by professionals. Each sampling channel can work independently or multiple channels can work simultaneously, each of which is connected to a different detection area to detect pollution factors in different areas. Moreover, the sampling bottle 13 can be automatically rinsed, and the detection system has low cost and high degree of automation.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (9)

1. A multi-point online detection system for a sewage treatment plant, characterized by comprising a plurality of sampling channels connected to different sampling areas of a biochemical pool and detection points connected to the plurality of sampling channels; Each of the sampling channels comprises a pumping pump, a sampling bottle and a sampling control valve, wherein the pumping pump is arranged in a pipeline connecting the sampling bottle and the sampling area and is used to pump the sewage in the biochemical pool into the sampling bottle, and the sampling control valve is connected to a drainage pipeline of the sampling bottle and is used to control the discharge of the sample liquid in the sampling bottle; The detection point includes a sample storage bottle, a detector arranged in the sample storage bottle, and a sample storage control valve arranged in a drainage pipe of the sample storage bottle; Each of the sampling bottles is connected to the sample storage bottle through a delivery pipeline, and the inlet end of the delivery pipeline is connected to the upper water level of the sampling bottle. 2. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that the sampling control valve and the sample storage control valve are both solenoid valves. 3. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that the biochemical pool has six sampling areas, and each sampling area is connected to the sampling channel. 4. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that a timing switch is connected to the sampling control valve and the sample storage control valve. 5. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that each of the sampling channels also includes a first overflow pipe, the inlet end of the first overflow pipe is connected to the upper water level of the sampling bottle, and the outlet end is connected to the drainage pipe of the sampling bottle. 6. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that the detection point also includes a second overflow pipe, the inlet end of the second overflow pipe is connected to the upper water level of the sample storage bottle, and the outlet end is connected to the drainage pipe of the sample storage bottle. 7. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that a control valve for controlling the on-off of the conveying pipeline is also provided in the conveying pipeline. 8. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that the sampling control valve and the sample storage control valve are both connected to a timing switch for controlling their operation. 9. The multi-point online detection system for a sewage treatment plant according to claim 1 is characterized in that the detector includes a detection probe and an instrument box, the detection probe extends into the sampling bottle, and the instrument box is located outside the sampling bottle.