CN110794109A - Small-size drainage exceeds standard on-line monitoring stays appearance machine - Google Patents

Abstract

The present invention proposes a small-scale on-line monitoring sample retention device for excessive drainage, including a flow triggering device, a flow drainage monitoring sample retention device, a communication transmission device, a supervision platform and a power distribution device. The flow triggering device includes a flowmeter, and the flowmeter is installed in the In the sewer pipeline, the flow and drainage monitoring sample retention device includes an online detection unit, an over-standard sample retention unit, and a signal integrated control system. The communication transmission device includes a communication transmission unit, a signal integrated control system and a flowmeter, an over-standard sample retention unit and an online The signal connection between the detection units, the signal integration control system and the supervision platform are connected through the communication transmission unit, the present invention is integrated, easy to carry and install, does not need two sets of instruments to be used in conjunction, and is not only suitable for small flow discharge of waste water. The monitoring sample can also be applied to the monitoring sample of large-flow discharge wastewater. The monitoring object is accurate and the evidence is sufficient, which will play a great deterrent effect on the stealing of waste liquid.

Description

A small sample machine for online monitoring of excessive drainage

technical field

The invention relates to the technical field of on-line monitoring and monitoring instruments, in particular to a small-scale on-line monitoring and retaining sample machine for excessive drainage.

Background technique

Supervision requirements for the sewage outlets of enterprises in the park and the discharge of wastewater from laboratories of various enterprises. The sewage treatment system that accepts wastewater discharged from the laboratories of enterprises exceeds the standard, resulting in the failure of the normal operation of the facilities. The outlet terminal is equipped with a water quality online monitoring and sample retention instrument, which monitors and monitors the key water quality parameters such as chemical oxygen demand and pH, and monitors and manages the water quality of the laboratory wastewater in real time to meet the requirements of environmental protection management.

At present, there are only sewage online monitoring instruments and automatic equal-proportion samplers for drainage monitoring on the market. They use online real-time monitoring of drainage concentration and remote automatic sample retention as required. Two sets of instruments need to be linked together; the combined use is large and requires high investment. , and does not apply to the supervision of laboratory drainage.

SUMMARY OF THE INVENTION

Purpose of the invention: The purpose of the present invention is to aim at the deficiencies in the current technology, and to provide a small-scale online monitoring and retaining sample machine for excessive drainage, which solves the need for two sets of instruments to be used in linkage when performing online detection and sampling of sewage in the prior art. It is only troublesome to install and has a large volume and high investment, so it is not suitable for small-flow drainage testing and reserve samples.

Technical solution: In order to achieve the above purpose, the present invention provides a small-scale online monitoring and retention device for excessive drainage, which is characterized in that it includes a flow trigger device, a flow drainage monitoring sample retention device, a communication transmission device, and is used for data storage and signal processing. The monitoring platform and the power distribution device for power output, the flow triggering device includes a flowmeter and a flowmeter triggering sensor, the flowmeter triggering sensor is installed in the drainage pipeline, and the flow drainage monitoring and sample retention device includes a The online detection unit, the over-standard sample retention unit, and the signal integrated control system, the communication transmission device includes a communication transmission unit, and the signal integrated control system is connected with the flow meter, the over-standard sample retention unit and the online detection unit. The signal integrated control system and the supervision platform are connected through a communication transmission unit.

As an improvement of this solution, the online detection unit is further provided with a time delay relay.

As an improvement of this solution, the flowmeter trigger sensor is installed in N drainage pipes, and N is a natural number, 1≤N≤10.

As an improvement of this solution, the communication transmission unit is DTU wireless transmission, and the collected data is transmitted to the supervision platform through a wireless network.

As an improvement of the solution, the power distribution unit includes a power supply and a circuit board connected to the power supply.

As an improvement of this solution, the on-line analysis unit includes a COD on-line sensor and an on-line monitoring sensor, and the COD on-line sensor and on-line monitoring sensor are respectively installed in a pass-through measuring cell as a flow-through installation or fixed on a drainage pipeline. U-bend as submerged installation.

As an improvement of this solution, the COD on-line sensor and the on-line monitoring sensor are detachably arranged relative to the pass-through measuring pool or the U-shaped bend of the drainage pipeline.

As an improvement of this solution, a plurality of the sample retention bottles are provided, and the sample retention bottles are connected to the water quality sampler.

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

1. Small flow trigger sampling, sensitive;

2. The online monitoring data exceeds the standard and the sampling unit retains the two functions of integration, the monitoring object is accurate, and the evidence is sufficient;

3. The sensor of the monitoring unit can be replaced, and different characteristic factors can be monitored;

4. The information transmission and software monitoring platform is Internet-based and intelligent, with convenient management, which will play a great deterrent effect on the stealth discharge of waste liquid;

5. The equipment is miniaturized, easy to install, saves installation time, and can be wall-mounted and portable;

6. The present invention does not have the problem of secondary pollution of waste liquid caused by common water quality analysis instruments.

Description of drawings

FIG. 1 is a schematic structural diagram of the principle frame structure of the small and medium-sized drainage over-standard online monitoring and retaining prototype of the present embodiment.

Detailed ways

The present invention will be further clarified below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" ” refer to directions towards or away from the geometric center of a particular part, respectively.

As shown in Figure 1, a small online monitoring and retaining sample machine for excessive drainage includes a flow trigger device, a flow drainage monitoring sample retaining device, a communication transmission device, a supervision platform for data storage and signal processing, and a configuration for power output. An electrical device, the flow triggering device includes a flowmeter and a flowmeter triggering sensor, the flowmeter triggering sensor is installed in a drainage pipeline, and the flow and drainage monitoring sample retention device includes an online detection unit, an over-standard sample retention unit, and A signal integrated control system, the communication transmission device includes a communication transmission unit, the signal integrated control system is signally connected with the flowmeter, the over-standard sample retention unit and the online detection unit, and between the signal integrated control system and the supervision platform Connected via a communication transmission unit.

The working principle of the small and medium-sized drainage over-standard online monitoring and retaining sample machine of the present invention: the flow triggering device includes a flowmeter, and the flowmeter is installed in the sewer pipe to monitor and control the flow rate of the drainage flowing through the sewer pipe, so as to ensure the flow rate when the liquid flows through. Over 0.6m/s, the flow drainage monitoring sample retention device includes an online detection unit, an excess sample retention unit, a communication transmission unit, a power distribution unit, and a signal integrated control system. Among them, the flowmeter, online detection unit, excess sample retention unit, The communication transmission unit is respectively connected with the signal integrated control system. The power distribution unit is used to supply power to the flow drainage monitoring sample retention device, the communication transmission device and the flow triggering device to ensure their normal operation. The supervision platform is used for multiple installations with flow The sewer pipe of the meter is used to manage the set conditions, collect the monitoring data and system status of each sampling monitoring point, and process and save the monitoring data in a unified manner. Start to measure the flow of wastewater, the flowmeter trigger sensor sends a trigger signal to the signal integrated control system, the signal integrated control system sends a control signal to the online detection unit, the online detection unit analyzes the pollution concentration of the wastewater flowing through the pipeline, and the online detection unit pollutes the wastewater The concentration monitoring data is transmitted to the signal integrated control system, and the signal integrated control system compares and analyzes the monitoring data of wastewater pollution concentration. Signal, carry out sample treatment on the flowing wastewater, and send a signal to the integrated signal control system. The integrated signal control system sends an alarm signal through the supervision platform to remind the staff to treat the discharged wastewater in time. Set a standard, the signal integrated control system sends a control signal to the sample retention unit that exceeds the standard, and does not retain the waste water that flows through it. After monitoring, the waste water flows out through the sewer pipe, and the signal integrated control system and the supervision platform are transmitted and controlled through a wireless network. , monitoring and recording monitoring data, the supervision platform records the monitoring data in real time, records the time of the wastewater flowing through, the concentration of pollutants in the flow and other data, which is convenient for future retrieval and evidence collection, which increases the supervision and can effectively prevent the occurrence of excessive discharge. .

In the above structure: the flow triggering device, the flow drainage monitoring device and the supervision platform are integrated into one piece, which is easy to carry and install. The present invention can not only be used for trigger sampling of discharged wastewater with small flow, but also can be used for trigger sampling of discharged wastewater with large flow. The collected data is accurate and sensitive. Compared with the prior art, the monitoring of waste water discharge requires two sets of instruments to be linked together; the combined use volume is large and the investment is high. Portable use, through the integration of two functions, the online detection unit and the over-standard sample retention unit, the monitoring object is accurate, and the drainage monitoring data is recorded in real time through the supervision platform, so that the evidence is sufficient when the data is retrieved later, and the waste liquid will be leaked. act as a great deterrent.

In this embodiment, the online detection unit is further provided with a time delay relay.

In the above structure: the flowmeter is also provided with a delay relay to realize the delay trigger sampling of the flowmeter. The delay time of the delay relay in the flowmeter is set to 10min/time, and the flow rate can be guaranteed by setting the delay relay. If there is a problem with the meter trigger sensor, the flowing discharged wastewater does not cause the flowmeter trigger sensor to trigger the on-line detection unit, and can also detect the flowing wastewater through 10min/time cycle monitoring to ensure that there will be no discharged wastewater that has not passed the line. The detection of the detection unit is more rigorous.

In this embodiment, the flowmeter trigger sensor is installed in N drainage pipes, and N is a natural number, 1≤N≤10.

In the above structure: the flowmeter trigger sensor can be installed in multiple drainage pipes, the number of which can be installed in this device is 1-10, and the online patrol monitoring and detection of multiple drainage pipes can be carried out at the same time and samples can be kept. Multiple monitoring points are managed and a unified statistical report is provided.

In this embodiment, the communication transmission unit is DTU wireless transmission, and the collected data is transmitted to the supervision platform through the wireless network.

In the upper structure: the communication transmission unit adopts DTU wireless transmission technology to realize the network transmission between the signal integrated control system and the supervision platform remotely in real time.

In this embodiment, the power distribution unit includes a power supply and a circuit board connected to the power supply.

In the above structure: the power distribution unit includes a power supply for power supply and a circuit board, which provides power output for the online monitoring and retention of excess water discharge and ensures its stable operation.

In this embodiment: the on-line analysis unit includes a COD on-line sensor and an on-line monitoring sensor, and the COD on-line sensor and on-line monitoring sensor are respectively installed in a through-type measuring cell as a U-shaped flow-through installation or fixed on a drainage pipeline. The bend is installed as a submerged type, and the COD online sensor and the online monitoring sensor are detachably arranged relative to the through-type measuring tank or the U-shaped bend of the drainage pipe.

In the above structure: the online analysis unit is a COD online sensor and an online monitoring sensor. The online monitoring sensor includes PH monitoring, ammonia nitrogen electrode detection, ORP detection and other online monitoring sensors for water pollution monitoring, and the COD online sensor is installed in the pass-through measurement pool. , to ensure that it can monitor the different discharged wastewater in the three drainage pipes. Its installation method is flow-through installation. It can also be immersed by fixing it in the U-shaped bend of the drainage pipe to ensure that it only monitors one drainage pipe. And to achieve real-time accuracy, the COD online sensor and online monitoring sensor are detachable installation, when the COD online sensor or online monitoring sensor is damaged or the monitoring data is inaccurate, it can be removed and replaced.

In this embodiment, the over-standard detection unit includes a sample bottle and a water quality sampler, a plurality of sample bottles are provided, and the sample bottle is connected to the water quality sampler.

In the above structure: the discharged wastewater is detected by the water quality sampler. If the concentration of the flowing wastewater exceeds the preset standard, the water quality sampler collects the excess wastewater and stores it in the sample bottle, and sends a signal to the integrated signal control system. The integrated signal control system sends an alarm signal through the supervision platform to remind the staff to treat the discharged wastewater in time. If the concentration of the wastewater flowing through does not exceed the preset standard, the discharged wastewater is discharged through the sewer.

The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims (8)

1. The utility model provides a small-size drainage exceeds standard on-line monitoring machine of leaving which characterized in that: including flow trigger device, flow drainage control stay a kind device, communication transmission device, be used for data storage and signal processing's supervision platform and be used for power output's distribution device, flow trigger device is including flowmeter and flowmeter trigger sensor, flowmeter trigger sensor installs in drainage pipe, flow drainage control stays a kind device including on-line measuring unit, exceeds standard and stays a kind unit and signal integrated control system, communication transmission device is including communication transmission unit, signal integrated control system and flowmeter, exceed standard and stay a kind unit and on-line measuring unit between signal connection, be connected through communication transmission unit between signal integrated control system and the supervision platform.

2. The small-sized online drainage overproof monitoring sample retention machine according to claim 1, characterized in that: and a time delay relay is also arranged in the online detection unit.

3. The small-sized online drainage overproof monitoring sample retention machine according to claim 1, characterized in that: the flowmeter trigger sensor is arranged in N drainage pipelines, N is a natural number, and N is more than or equal to 1 and less than or equal to 10.

4. The small-sized online drainage overproof monitoring sample retention machine according to claim 1, characterized in that: the communication transmission unit is DTU wireless transmission, and the acquired data is transmitted to the supervision platform through a wireless network.

5. The small-sized online drainage overproof monitoring sample retention machine according to claim 1, characterized in that: the power distribution unit comprises a power supply and a circuit board connected with the power supply.

6. The small-sized online drainage overproof monitoring sample retention machine according to claim 1, characterized in that: the online analysis unit comprises a COD online sensor and an online monitoring sensor, wherein the COD online sensor and the online monitoring sensor are respectively installed in a through type measuring tank to be installed in a flow mode or fixed at a U-shaped bend of a drainage pipeline to be installed in an immersion mode.

7. The small-sized online drainage overproof monitoring sample retention machine according to claim 6, characterized in that: the COD on-line sensor and the on-line monitoring sensor are detachably arranged relative to a U-shaped bend of the through type measuring tank or the drainage pipeline.

8. The small-sized online drainage overproof monitoring sample retention machine according to claim 1, characterized in that: the standard exceeding detection unit comprises a plurality of sample reserving bottles and a water quality sampler, and the sample reserving bottles are connected to the water quality sampler.