CN217443187U - Sewage SV30 automatic determination system - Google Patents

Abstract

The utility model provides a sewage SV30 automatic determination system, is including transparent graduated flask, sewage mechanism of intaking, clear water mechanism of intaking, sewage drainage mechanism and image acquisition and processing equipment be provided with wiper mechanism in the transparent graduated flask, wiper mechanism include the motor, by motor drive's screw rod with set up in the clearance of screw rod lower extreme and scrape the head, the motor drive screw rod drives and scrapes the head and reciprocate in the transparent graduated flask, realize the washing to transparent graduated flask inner chamber. Aiming at the problems of insufficient automation or low precision of the prior art of SV30 automatic determination, the embodiment of the invention is designed most reasonably in the process link of automatic determination, is superior to the prior invention in accuracy, completely breaks away from manual operation of the process, and can completely determine SV30 in an aerobic tank in a sewage treatment plant without auxiliary operation of personnel.

Description

Sewage SV30 automatic determination system

Technical Field

The utility model relates to a sewage treatment detection device, concretely relates to sewage SV30 automatic determination system.

Background

Most of urban sewage treatment plants in China are built for a long time, the requirements on discharge standards and the degree of automation are relatively low, the problem of water pollution is more and more serious along with the development of economy in China, the discharge standards of pollutants in sewage treatment plants are higher and higher, and the improvement of urban sewage treatment is imperative. In addition, in recent years, the labor cost is greatly increased, so that the project operation cost is increased, the problem of automatic modification is solved from the source, and the automatic system equipment is replaced from all links, so that the labor cost can be saved, and the control link is more objective and accurate. In the automatic modification process, the monitoring indexes required by the intelligent sewage treatment operation system are all monitored on line. And SV30 is an important parameter of activated sludge, can only be monitored manually on most projects, has poor timeliness and large error range, and influences the calculation and feedback of an intelligent regulation and control system on the parameter. Seriously, it also results in the reduction or even collapse of the microbial activity in the wastewater treatment.

Although there are some system devices for automatically detecting SV30, the existing similar techniques use old round measuring cylinders, which makes image recognition difficult or inaccurate. In addition, after water sampling and sampling in the prior art, an automatic cleaning system is not provided or a cleaning system is provided, but the cleaning effect is poor, and after the water sampling and sampling device is used for multiple times, a large amount of liquid sediments remained in the previous sampling, so that errors exist in determination and the detection result is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sewage SV30 automatic determination system solves current detection device/system and exists because of the unreasonable, the not good big problem that leads to the testing result error of automatic cleaning system cleaning performance of graduated flask structure, realizes sewage SV 30's automation, accurate determination.

The purpose of the utility model is realized like this:

an embodiment of this application is, a sewage SV30 automatic determination system, including transparent graduated flask, sewage mechanism, clear water mechanism, sewage drainage mechanism and the image acquisition treatment facility of intaking be provided with wiper mechanism in the transparent graduated flask, wiper mechanism include the motor, by motor drive's screw rod scrapes the head with the clearance that sets up in the screw rod lower extreme, motor drive screw rod drives scrapes the head and reciprocates in the transparent graduated flask, realizes the washing to transparent graduated flask inner chamber.

More specifically, the sewage inlet mechanism comprises a sewage inlet pipeline connected with the transparent measuring cylinder and a sewage inlet pump arranged on the pipeline, and a water outlet of the sewage inlet pipeline is opened at the upper part of the inner side wall of the transparent measuring cylinder; the clear water inlet mechanism comprises a clear water inlet pipeline connected with the transparent measuring cylinder and a clear water inlet pump arranged on the pipeline, and a water outlet of the clear water inlet pipeline is opened at the upper part of the inner side wall of the transparent measuring cylinder; the sewage drainage mechanism comprises a sewage outlet pipeline connected with the transparent measuring cylinder and a sewage drainage pump arranged on the pipeline, wherein a water inlet of the sewage outlet pipeline is opened at the inner bottom wall of the transparent measuring cylinder, and a check valve is arranged at a water inlet of the sewage outlet pipeline.

More specifically, the image acquisition and processing equipment comprises a camera and a computer; the camera is connected with a computer and is used for collecting images of the transparent measuring cylinder; the computer is respectively connected with the camera and the motor and is used for controlling the working state of the motor according to the image acquisition result.

One embodiment of the present application is that the transparent measuring cylinder has a circular cross-section inner cavity and a rectangular cross-section outer contour, and the transparent measuring cylinder outer side surface is provided with capacity scales. Due to the design of the rectangular measuring cylinder, errors of the old round measuring cylinder caused by camera imaging can be reduced.

In one embodiment of the present application, the transparent measuring cylinder has a downwardly concave inner bottom, and the shape of the scraping head matches the shape of the inner bottom of the transparent measuring cylinder. In a better embodiment, the transparent measuring cylinder is provided with an arc-shaped inner bottom which is concave downwards, or the transparent measuring cylinder is provided with an inverted cone or frustum-shaped inner bottom which is concave downwards and is wide at the top and narrow at the bottom. Such inner bottom design and scrape the head design, can guarantee the more smooth discharge of mud after the sediment to sewage outlet pipe way, avoid mud to pile up unable smooth discharge in transparent graduated flask bottom.

An embodiment of this application is, wiper mechanism still includes right scrape the head and carry out the pressure boost shower nozzle of clearing up, pressure boost shower nozzle connect in the clear water is intake the mechanism and is in delivery port department in the transparent graduated flask and set up in scrape first top, and scrape overhead the hole that leaks of having seted up. The scraping head has some sludge residues after being used for multiple times, and needs to be cleaned regularly, and the cleaning of the scraping head is realized by arranging the pressurizing spray head above the scraping head and arranging the water leakage holes on the scraping head, and the flushing sewage is discharged to the aerobic tank through the sewage outlet pipeline.

The embodiment of the application has the following technical effects:

aiming at the problems of insufficient automation or low accuracy of the prior art of SV30 automatic determination, the embodiment of the invention is most reasonably designed in the process link of automatic determination, is superior to the prior art in accuracy, completely breaks away from manual operation of the process, and can completely determine SV30 in an aerobic tank in a sewage treatment plant under the condition of no auxiliary operation of personnel. The rectangular scale measuring cylinder can reduce errors of an old round measuring cylinder caused by camera imaging; the automatic cleaning mechanism can solve the problem that the liquid sample measured in the previous time is remained after only water is drained in the prior art, and the accuracy of measured data is further improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a perspective view of a transparent measuring cylinder and a scraper head in a half-section structure.

In the figure: 1. transparent graduated flask, 2, computer, 3, camera, 4, sewage intake pump, 5, motor, 6, clear water intake pump, 7, pressure boost shower nozzle, 8, scrape the head, 9, sewage drain pump, 10, check valve, 11, the hole that leaks.

Detailed Description

The technical solution of the present application is further described in detail by the following specific examples.

Example 1

As shown in fig. 1, the automatic determination system for SV30 in sewage mainly comprises a transparent measuring cylinder 1, a cleaning mechanism for cleaning the transparent measuring cylinder 1, a sewage inlet mechanism, a sewage discharge mechanism, a clear water inlet mechanism, and an image acquisition and processing device.

The sewage water inlet mechanism is composed of a sewage water inlet pipeline communicated with the aerobic tank and the transparent graduated cylinder 1 and a sewage water inlet pump 4 arranged on the pipeline, the sewage water inlet pump 4 is connected with a timer (a first timer) for timing control on opening and closing through a two-core power line, the water inlet end of the sewage water inlet pipeline is connected with the aerobic tank, and the water outlet end is connected with the transparent graduated cylinder 1 (the water outlet opening is arranged on the upper portion of the inner side wall of the transparent graduated cylinder 1). The sewage drainage mechanism is composed of a sewage outlet pipeline which is communicated with the aerobic tank and the transparent graduated cylinder 1 and a sewage drainage pump 9 which is arranged on the pipeline, and a timer (a second timer) which is used for timing and controlling the start and stop of the sewage drainage pump 9 is connected to the sewage drainage pump 9. The water inlet of the sewage outlet pipeline is opened at the inner bottom wall of the transparent graduated cylinder 1, the water inlet of the sewage outlet pipeline is also provided with a check valve 10, and the water outlet end of the sewage outlet pipeline is connected with the aerobic tank. The clear water inlet mechanism is composed of a clear water inlet pipeline communicated with a clear water tank or a clear water source and a clear water inlet pump 6 arranged on the pipeline, and a timer (a third timer) for timing and controlling the start and stop of the clear water inlet pump 6 is arranged on the clear water inlet pump. The water outlet of the clear water inlet pipeline is opened at the upper part of the inner side wall of the transparent measuring cylinder, and the water inlet end of the clear water inlet pipeline is connected with a clear water source.

The cleaning mechanism comprises a motor 5, a screw rod driven by the motor 5 and a scraping head 8 arranged at the lower end of the screw rod, the motor 5 drives the scraping head 8 to move up and down in the transparent measuring cylinder 1 through driving the screw rod to clean the inner cavity of the transparent measuring cylinder 1, the mechanical transmission structure of the part is not explicitly shown in the attached drawing, and the cleaning mechanism can be arranged according to a conventional transmission connection mode.

In this embodiment, the transparent measuring cylinder 1 is designed as shown in fig. 2, and has a structure with an outer square and an inner circle, that is, it has an inner cavity with a circular cross section and an outer wall with a rectangular cross section, and a conical inner bottom, and the outer side wall of the transparent measuring cylinder 1 has volume scales. The structure of the scraping head 8 is matched with the inner bottom structure and is in an inverted frustum shape. When the scraping head 8 rises to the highest point, the opening positions of the sewage water outlet and the clear water outlet are arranged below the scraping head 8, and the transparent measuring cylinder 1 is designed to have the highest water level line (see H in figure 1) not exceeding the height of the two water outlets.

The image acquisition and processing equipment comprises a camera 3 and a computer 2. The camera 3 is connected with the computer 2 by adopting a 6-core power signal wire, is placed at a position with a proper distance on the front side of the scale of the rectangular transparent measuring cylinder 1 and is used for carrying out image acquisition on the transparent measuring cylinder 1; the computer 2 is respectively connected with the camera 3 and the motor 5, and is provided with a self-recognition program for controlling the working state of the motor 5 according to the image acquisition result.

The operation process of the system is as follows:

firstly, a motor 5 is started, a scraping head 8 is lifted to the highest point in a transparent measuring cylinder 1, then a first timer is used for setting and starting a sewage inlet pump 4 in a timing mode, sewage to be measured is injected into the transparent measuring cylinder 1, time is preset for the first timer according to the capacity (the highest point H of the liquid level) of the transparent measuring cylinder 1 and the flow of a water pump, and the sewage inlet pump 4 is closed after timing is finished.

After a certain time, after the camera 3 finishes collecting the image, the sewage draining pump 9 is started to drain the sewage to the aerobic tank (the starting and draining time is controlled by the second timer), and the check valve 10 can prevent a part of sewage from entering a sewage outlet pipeline in the water inlet process to cause measurement errors.

Generally, after the sewage is drained, the clean water inlet pump 6 is started (the starting and water inlet time is controlled by the third timer), the transparent measuring cylinder 1 is washed, and the washing water is drained through the sewage drainage pump 9. When the residual sludge in the transparent measuring cylinder 1 affects the measurement too much, the computer program controls the starting motor 5 to control the scraping head 8 to move downwards, the inner wall of the transparent measuring cylinder 1 is cleaned, the clear water inlet pump 6 is started to feed water after the scraping head 8 returns to the original position, the transparent measuring cylinder 1 is washed, and after the washing is finished, the sewage draining pump 9 is started to discharge the washing water to the aerobic tank. The operation frequency of the scraping head 8 can be preset, and the cleaning of the inner cavity of the transparent measuring cylinder 1 is preferably performed once after each SV30 measurement.

In the embodiment, the time is preset for the timer on each water pump, so that the automatic work of each water inlet and outlet system and the cleaning system is realized. The self-recognition system is installed in the computer 2, and performs SV30 measurement after comparing the scale image pre-prepared in the computer 2 by performing gray scale processing on the image shot by the camera 3

Example 2

The difference between this embodiment and embodiment 1 is that a pressurizing nozzle 7 (see fig. 1) is further disposed at the water outlet of the clean water inlet mechanism, when the scraping head 8 rises to the highest point, the opening of the sewage outlet is disposed below the scraping head 8, the pressurizing nozzle 7 is disposed above the scraping head 8, and the scraping head 8 is configured to have a structure with a water leakage hole 11 (see fig. 2).

The technical solutions of the present application are described in detail by two specific examples, all the implementations performed by the examples in the claims are within the scope of the present application, and the examples are not intended to limit the scope of the claims.

Claims (7)

1. The utility model provides a sewage SV30 automatic determination system, is including transparent graduated flask, sewage mechanism of intaking, clear water mechanism of intaking, sewage drainage mechanism and image acquisition processing equipment, its characterized in that be provided with wiper mechanism in the transparent graduated flask, wiper mechanism include the motor, by motor drive's screw rod with set up in the clearance of screw rod lower extreme and scrape the head, motor drive screw rod drives and scrapes the head and reciprocate in the transparent graduated flask, realize the washing to transparent graduated flask inner chamber.

2. The system for automatically measuring SV30 in sewage according to claim 1, wherein the sewage inlet mechanism comprises a sewage inlet pipeline connected with the transparent graduated cylinder and a sewage inlet pump arranged on the pipeline, and the water outlet of the sewage inlet pipeline is opened at the upper part of the inner side wall of the transparent graduated cylinder; the clear water inlet mechanism comprises a clear water inlet pipeline connected with the transparent measuring cylinder and a clear water inlet pump arranged on the pipeline, and a water outlet of the clear water inlet pipeline is opened at the upper part of the inner side wall of the transparent measuring cylinder; the sewage drainage mechanism comprises a sewage outlet pipeline connected with the transparent measuring cylinder and a sewage drainage pump arranged on the pipeline, wherein a water inlet of the sewage outlet pipeline is opened at the inner bottom wall of the transparent measuring cylinder, and a check valve is arranged at a water inlet of the sewage outlet pipeline.

3. The automatic sewage SV30 determination system as claimed in claim 1, wherein the transparent measuring cylinder has a circular cross-section inner cavity and a rectangular cross-section outer contour, and a volume scale is arranged on the outer side surface of the transparent measuring cylinder.

4. The automated contaminated water SV30 determination system according to claim 2, wherein the transparent graduated cylinder has a downwardly concave inner bottom, and the shape of the scraper head matches the shape of the transparent graduated cylinder inner bottom.

5. The automated sewage SV30 determination system of claim 4, wherein the transparent measuring cylinder has a downwardly concave arc-shaped inner bottom.

6. The automated sewage SV30 measurement system according to claim 4, wherein the transparent measuring cylinder has an inverted cone or inverted frustum-shaped inner bottom which is concave downwards and has a wide top and a narrow bottom.

7. The system for automatically measuring SV30 in sewage according to claim 1, wherein the cleaning mechanism further comprises a pressurizing nozzle for cleaning the scraping head, the pressurizing nozzle is connected to the clear water inlet mechanism at the water outlet in the transparent measuring cylinder and arranged above the scraping head, and the scraping head is provided with a water leakage hole.

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