CN215449230U - Liquid detection equipment, detection system and environment detection system - Google Patents

Abstract

The utility model is suitable for the field of improvement of liquid detection technology, and provides liquid detection equipment, a detection system and an environment detection system, wherein the liquid detection equipment comprises a system control module, a quick detection module, a chemical detection module and a protective shell, the system control module, the quick detection module and the chemical detection module are respectively arranged in the protective shell, or the system control module and the chemical detection module are respectively arranged in the protective shell, the output end of the quick detection module is connected with the input end of the system control module, the output end of the chemical detection module is connected with the input end of the system control module, and the output end of the system control module is connected with the control end of the chemical detection module. The operation frequency of a chemical method detection system is effectively reduced, and the discharge of hazardous waste is reduced.

Description

Liquid detection equipment, detection system and environment detection system

Technical Field

The utility model belongs to the field of improvement of liquid detection technology, and particularly relates to liquid detection equipment.

Background

The water resource is an important component of natural resources and is an important resource guarantee for the modern construction of China, and the resident life and the enterprise production need safe water, so that the water resource needs to be detected in real time.

Currently, the problem of water pollution is attracting increasing attention as a prominent environmental protection problem. In order to protect the water environment in which people live and ensure the drinking water hygiene of people, on one hand, the water quality in production and life needs to be detected, and on the other hand, the monitoring on the discharge of various kinds of production and domestic sewage needs to be enhanced.

At present, most domestic water quality analysis instruments are single-method detection instruments, wherein the usage amount is large, such as COD (chemical oxygen demand) online analysis instruments and ammonia nitrogen online analysis instruments mostly use chemical methods according to the requirements of environmental protection departments, and the chemical methods have some defects of self, such as low detection speed, large reagent consumption amount and large discharge amount of dangerous wastes. The chemical method on-line monitor has low monitoring efficiency, large reagent consumption, large amount of generated reagent waste liquid, low accuracy of electrode method detection and larger error. The detection speed is slow, because the efficiency of current chemical method detecting instrument is lower, is 4 hours at every turn in the average monitoring cycle in the online monitoring field of environmental protection quality of water, has found in the environmental protection inspection, and the enterprise utilizes the monitoring clearance to steal and arranges, and the consumed reagent volume is big, and the online equipment of chemical method is in normal work, and work such as the calibration of instrument, standard sample check, water sample survey all need consume a large amount of chemical reagent. The hazardous waste discharge amount is more, and the online equipment of chemical method is in normal work, and work such as the calibration of instrument, standard sample check, water sample survey all can produce a large amount of dangerous waste liquids. Although the rapid detection equipment has the advantage of high detection efficiency, the rapid detection equipment also has the defect of large data deviation, and cannot be applied to the field of enterprise environment-friendly online monitoring as law enforcement basis, which is the key application field of a water quality continuous monitoring instrument.

In conclusion, there is an urgent need for a detection apparatus with rapid and accurate detection, less reagent consumption, and less generation of hazardous waste liquid.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a liquid detection device, aiming at solving the technical problems of improving the monitoring efficiency and reducing the discharge amount of dangerous wastes.

The utility model is realized in such a way that the liquid detection equipment comprises a system control module, a rapid detection module and a protection shell, wherein the system control module and the rapid detection module are respectively arranged in the protection shell or the system control module is arranged in the protection shell, and the output end of the rapid detection module is connected with the input end of the system control module.

The further technical scheme of the utility model is as follows: the liquid detection equipment further comprises a chemical detection module, wherein the output end of the chemical detection module is connected with the input end of the system control module, the chemical detection module is arranged in the protective shell, and the output end of the system control module is connected with the control end of the chemical detection module.

The further technical scheme of the utility model is as follows: the chemical detection module comprises a fluid pipe, a fluid valve and a detection unit, wherein the fluid valve is connected with the detection unit through the fluid pipe.

The further technical scheme of the utility model is as follows: the rapid detection module is a sensor rapid detection system, an optical detection system, a photoelectric detection system, an electrochemical detection system or a semiconductor detection system.

The further technical scheme of the utility model is as follows: the sensor rapid detection system comprises a sensor, and the output end of the sensor is connected with the input end of the system control module.

The further technical scheme of the utility model is as follows: the rapid detection system of the sensor further comprises a detection pool and a liquid pipe, one end of the liquid pipe is communicated with the detection pool, and the detection end of the sensor is arranged in the detection pool

The further technical scheme of the utility model is as follows: the optical detection system comprises a light path transmitting module and a light path receiving module, wherein the light path transmitting module transmits detection light to be received by the light path receiving module through liquid to be detected.

The further technical scheme of the utility model is as follows: the system control module comprises a detection control main board, wherein the output end of the detection control main board is connected with a display screen, and the display screen is arranged on the protection shell.

The further technical scheme of the utility model is as follows: the detection control main board is provided with a microprocessor, a display driving module, a data receiving module, a data transmission module and a data storage module, the output end of the data receiving module is connected with the input end of the microprocessor, the output end of the microprocessor is respectively connected with the input end of the display driving module, the input end of the data transmission module and the data end of the data storage module, and the output end of the display driving module is connected with the input end of the display screen.

The further technical scheme of the utility model is as follows: the data transmission module comprises a wired network transmission unit, a Bluetooth transmission unit and a mobile network transmission unit which are arranged in parallel, wherein the mobile network transmission unit adopts an SIM data card seat.

The further technical scheme of the utility model is as follows: the equipment detection shell is also provided with a control valve, the inlet end of the control valve is communicated with one end of the liquid collection pipe, and the outlet end of the control valve is communicated with the detection pool through the liquid collection pipe.

It is another object of the present invention to provide a liquid detection system including a liquid detection apparatus.

Another object of the present invention is to provide an environmental detection system, which includes the liquid detection system.

The utility model has the beneficial effects that: the system starts water sample collection system alone, the water sample of being surveyed just can get into quick detecting system, improvement work to chemical method equipment is less, the cost is saved, the quick detecting system who increases is as the accessory part, the volume is less, can directly load in chemical method monitoring instrument, high working efficiency, it is quick to detect, quick detecting system detects with optics, can realize accomplishing the test in a few seconds, chemical reagent consumes fewly, quick detecting system is in service, need not chemical reagent, hazardous waste discharges fewly, the instrument is whole to be controlled quick detecting system and chemical detecting system's frequency of operation by central control system, can effectual reduction chemical method detecting system's frequency of operation, reduce the emission of hazardous waste.

Drawings

Fig. 1 is a first structural block diagram of a liquid detection apparatus according to an embodiment of the present invention.

Fig. 2 is a block diagram of a liquid detection apparatus according to an embodiment of the present invention.

Fig. 3 is a block diagram of a liquid detection apparatus according to an embodiment of the present invention.

Fig. 4 is a block diagram of a liquid detection apparatus according to an embodiment of the present invention.

Fig. 5 is a block diagram of a liquid detection apparatus according to an embodiment of the present invention.

Fig. 6 is a block diagram six of a liquid detection apparatus according to an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 6, the liquid detection apparatus provided by the present invention includes a system control module, a rapid detection module and a protection housing, wherein the system control module and the rapid detection module are respectively disposed in the protection housing or the system control module is disposed in the protection housing, and an output end of the rapid detection module is connected to an input end of the system control module. The system control module and the rapid detection module can be simultaneously arranged in the protective shell, and the output end of the rapid detection module is communicated with the input end of the system control module through a data connecting line to receive data; or the system control module is arranged in the protective shell, the rapid detection module is arranged outside the protective shell, and the rapid detection module is communicated with the system control module through a data connecting line so as to carry out data communication.

The liquid detection equipment further comprises a chemical detection module, wherein the output end of the chemical detection module is connected with the input end of the system control module, the chemical detection module is arranged in the protective shell, and the output end of the system control module is connected with the control end of the chemical detection module. The output end of the chemical detection module and the output end of the rapid detection module are respectively connected with the input end of the system control module, after the chemical detection module sends detected liquid data to the system control module, the system control module analyzes and processes the received data, arranges the data into a specified format text, simultaneously transmits the result data of the liquid detection to the system control module by the chemical detection module, verifies whether the error of the data of the rapid detection module is within the set condition of the system after receiving the detection data, if the error is within the set condition of the system, the detection result is in accordance with the standard and does not need to carry out error correction on the rapid detection module, if the error is not within the set condition of the system, the chemical detection module corrects the detection data of the liquid to parameters of each process of the rapid detection module, and outputs and stores the corrected detection data, and finally, reporting the detection data result.

The quick detection module in the detection equipment is different according to different requirements, the selected quick detection module is different, the electrode quick detection system is selected, other quick detection systems are selected for the optical detection system, and no matter which quick detection system is used, the detected data can be reported to the management system in time for data sorting and analysis, so that the liquid detection data can be obtained as soon as possible. The protection casing can be integrated, the rapid detection module, the system control module and the chemical detection module are all installed in the protection casing, the protection casing can also be a split protection casing, the rapid detection casing, the chemical detection casing and the control detection casing are respectively, and the three casings are respectively provided with corresponding equipment. The selection of the housing is different according to the selection.

The quick detection module is the quick detection system of sensor, the quick detection system of sensor is including detecting pond and sensor, the output of sensor is connected the input of system control module. The sensor rapid detection system further comprises a detection pool and a liquid pipe, wherein one end of the liquid pipe is communicated with the detection pool, and the detection end of the sensor is arranged in the detection pool. The detection cell is used as a component of a detection analysis instrument, the main function of the detection cell is to store the detected liquid, and some detection cells require certain light transmittance, so that the shape of the detection cell has various styles. For example: cylindrical, square, irregular, and irregular.

The optical method detection system comprises a light path emission module and a light path receiving module, wherein the light path emission module emits detection light, and the detection light passes through the liquid to be detected and is received by the light path receiving module.

The chemical method detection module comprises a fluid pipe, a fluid valve and a detection unit, wherein the fluid valve is connected with the detection unit through the fluid pipe. The module also comprises a chemical reagent storage unit, wherein the chemical reagent storage unit can be stored in different places according to different actual conditions, and is directly communicated with the detection unit on a detection site; and is separate in the laboratory, and the unit is connected with the detection unit only when the test is carried out, and is stored separately when not used.

The system control module comprises a detection control main board, the output end of the detection control main board is connected with a display screen, the display screen is arranged on the protective shell, the detection control main board is respectively provided with a microprocessor, a display driving module, a data receiving module, a data transmission module and a data storage module, the data receiving module transmits received data information to the input end of the microprocessor through the output end, the microprocessor analyzes, arranges and verifies the received data to generate a set format data file after receiving the data, the data file is respectively transmitted to the input end of the display driving module, the input end of the data transmission module and the data end of the data storage module which are connected with the microprocessor through the output end of the microprocessor, the display driving module converts the data file after receiving the data file and transmits the converted data file to the display screen through the output end to display the data, the data storage module stores the data according to a format set by the parameters after receiving the data, and claims that the corresponding index file is used for subsequent inquiry. And the data transmission module processes and converts the data and transmits the data to the server through the network. The data transmission module adopts one or two of a wired network transmission unit, a Bluetooth transmission unit or a mobile network transmission unit respectively, the wired network transmission unit adopts an R45 network port, the mobile network transmission unit adopts an SIM card seat, and the SIM card seat adopts a full network communication protocol to automatically identify the network.

The equipment detection shell is also provided with a control valve, the inlet end of the control valve is communicated with one end of the liquid collection pipe, and the outlet end of the control valve is communicated with the detection pool through the liquid collection pipe. The control valve is added to more effectively control the detection of the liquid, so that the control of the detection liquid can be better in the detection process.

As shown in figure 1, the rapid detection module consists of a detection pool and a rapid detection unit, and the module is positioned on a water inlet pipeline flow path in the instrument. The fast detection unit consists of optical components, namely an emitting end of light and a receiving end of light.

Taking a COD online monitoring analyzer as an example, a spectrum detection unit can be added in a main flow path or a bypass of a detected water body in the analyzer to serve as a rapid detection system. The spectrum detection unit detects the absorbance of the water body by using a specific wavelength, and calculates the COD value of the water body by using the linear relation between the COD in the water and the absorbance of the water body at the specific wavelength. Meanwhile, the chemical detection system is used for calibrating the rapid detection unit regularly, so that the data accuracy of the rapid detection system is improved.

Monitoring the water body:

when the detection is carried out, the detected water sample firstly enters the rapid detection module. And comparing the data of the liquid detection item factor COD detected by the rapid detection module with the data selection rule in the instrument. When the data of the liquid detection item factor COD detected by the rapid detection module is compared with the data selection rule in the instrument and accords with the data determination rule, the chemical method detection system is not started, and the data of the liquid detection item factor detected by the rapid detection module is taken as the data result of the detection; when the data of the liquid detection item factor COD detected by the rapid detection module is compared with the data selection rule in the instrument and does not accord with the data determination rule, the chemical method detection system is started, and the data of the liquid detection item factor COD detected by the chemical method detection system is used as the data result of the detection.

The advantages of the case are: 1. the system independently starts the water sample collection system, and the detected water sample can enter the rapid detection system, so that the improvement work of the chemical method equipment is less, and the cost is saved.

2. The added rapid detection system is used as an accessory component, has small volume and can be directly loaded in a chemical method monitoring instrument.

3. The work efficiency is high, detects fast, and quick detecting system detects with optics, can realize accomplishing the test in a few seconds.

4. The consumption of chemical reagents is low, and the chemical reagents are not needed in the work of the rapid detection system.

5. The discharge of hazardous waste is less, the working frequency of the rapid detection system and the chemical detection system is controlled by the central control system, the operation frequency of the chemical detection system can be effectively reduced, and the discharge of the hazardous waste is reduced.

As shown in fig. 2, the fast method detector is located within the chemical method detector.

When the detection is carried out, the detected water sample enters a chemical method detector. The rapid detection module firstly detects, and the data of the liquid detection item factors of the rapid detection module is compared with the data selection rule in the instrument. When the data of the liquid detection item factors detected by the rapid detection module is compared with the data selection rule in the instrument and accords with the data determination rule, the chemical method detection system is not started, and the data of the liquid detection item factors detected by the rapid detection module is used as the data result of the detection; and when the data of the liquid detection item factors detected by the rapid detection module is compared with the data selection rule in the instrument and does not accord with the data determination rule, starting the chemical detection system, and taking the data of the liquid detection item factors detected by the chemical detection system as the data result of the detection.

The advantages of the case are: 1. the system independently starts the water sample collecting system, the detected water sample can enter the chemical method detector, the rapid detection system tests the detected water sample, the improvement work of the chemical method equipment is less, and the cost is saved.

7. The added rapid detection system is positioned in the chemical method detector, and a detection pool of the rapid detection system is not required to be added independently, so that the cost is greatly saved.

8. The working efficiency is high, the detection is quick, and the test can be completed within several seconds.

9. The consumption of chemical reagents is low, and the chemical reagents are not needed in the work of the rapid detection system.

10. The discharge of hazardous waste is less, the working frequency of the rapid detection system and the chemical detection system is controlled by the central control system, the operation frequency of the chemical detection system can be effectively reduced, and the discharge of the hazardous waste is reduced.

As shown in FIG. 3, the rapid detection module is composed of water quality monitoring electrodes, and is located outside the instrument and in the water sample to be detected.

When the detection is carried out, the rapid detection module firstly carries out detection, and the data of the liquid detection item factors of the rapid detection module is compared with the data selection rule in the instrument. When the data of the liquid detection item factors detected by the rapid detection module is compared with the data selection rule in the instrument and accords with the data determination rule, the chemical method detection system is not started, and the data of the liquid detection item factors detected by the rapid detection module is used as the data result of the detection; and when the data of the liquid detection item factors detected by the rapid detection module is compared with the data selection rule in the instrument and does not accord with the data determination rule, starting the chemical detection system, and taking the data of the liquid detection item factors detected by the chemical detection system as the data result of the detection.

The advantages of the case are: 1. the rapid detection system is positioned outside the chemical method instrument, and original equipment of the chemical method does not need to be improved.

6. The added rapid detection system can be used as an independent detection system, and the test can be completed without starting a chemical method equipment sampling system.

7. The high-frequency water body testing device has the advantages of high working efficiency, quick detection, and capability of realizing high-frequency measurement of a tested water body, and the test is not less than 60 times per minute.

8. The consumption of chemical reagents is low, and the chemical reagents are not needed in the work of the rapid detection system.

9. The discharge of hazardous waste is less, the working frequency of the rapid detection system and the chemical detection system is controlled by the central control system, the operation frequency of the chemical detection system can be effectively reduced, and the discharge of the hazardous waste is reduced.

As shown in figure 4, the rapid detection module consists of a detection pool and a water quality monitoring electrode, the module is positioned on the flow path of a water inlet pipeline in the instrument, and the water quality monitoring electrode is positioned in the detection pool.

Take a water quality ammonia nitrogen on-line monitor as an example. The traditional online monitor for water quality ammonia nitrogen uses a salicylic acid chemical method to determine the ammonia nitrogen content in water, and has the working principle that under an alkaline condition, ammonium and ammonia ions in a detected water sample react with hypochlorite to generate chloramine; under the condition of 40 ℃ and the existence of a catalyst, chloramine reacts with salicylate to generate a blue-green complex, the absorbance of the blue-green complex is measured with the wavelength of 660nm, and the blue-green complex is converted into a corresponding concentration value. Device power consumption: the time for each measurement was about 45 minutes, the amount of reagent used was 50mL, the amount of hazardous waste was 50mL, and the power of the apparatus was 200 watts.

A water quality ammonia nitrogen monitoring electrode comprises the following components: working electrode, reference electrode, ion selective membrane and electrolyte. Only the ammonium ions to be detected can migrate through the ion selection membrane and generate charge change, so that a potential is generated on the working electrode, the potential value is proportional to the ion concentration, and the potential of the reference electrode is constant. Based on the nernst equation, the potential difference between the working electrode and the reference electrode is measured and converted into ammonia nitrogen concentration. The power consumption is as follows: 10 seconds each time, no reagent, no hazardous waste discharge, 10 watts of equipment power.

Based on the utility model, the new equipment is internally provided with a rapid detection system and a chemical determination system at the same time, when a detected water sample enters the instrument, the detected water sample firstly enters the rapid detection system for determination, the ammonia nitrogen of the detected water sample is determined by a water quality ammonia nitrogen monitoring electrode, and the water quality ammonia nitrogen monitoring electrode outputs an electric signal to an equipment control system. And the ammonia nitrogen value of the detected water sample calculated by the control system is compared with the determination conditions stored in the control system, and when the conditions are met, the chemical determination system is started to determine the ammonia nitrogen of the detected water sample.

For example: when the ammonia nitrogen is measured to be 2.5mg/L by a rapid method, the detection data in the previous period is 3.5mg/L, the data fluctuation is-28.57%, and the data fluctuation is more than +/-15%, so that the starting condition of a chemical method system is met. And starting a chemical method system to determine that the ammonia nitrogen is 2.8mg/L, and determining that the ammonia nitrogen of the current water sample to be detected is 2.8mg/L by the equipment. At the same time, a rapid method calibration procedure is initiated. The rapid method has the calculation formula as follows: y = AX + B, wherein A, B is a constant, Y is an ammonia nitrogen value, and X is a water quality ammonia nitrogen monitoring electrode output value. The constant A, B in the calculation formula of the rapid method is corrected to be A1 and B1, so that the aim of calibrating the water quality ammonia nitrogen monitoring electrode is fulfilled.

The advantages of the case are: 1. the system independently starts the water sample collection system, and the detected water sample can enter the rapid detection system, so that the improvement work of the chemical method equipment is less, and the cost is saved.

13. The added rapid detection system is used as an accessory component, has small volume and can be directly loaded in a chemical method monitoring instrument.

14. The work efficiency is high, detects fast, and quick detecting system detects with optics, can realize accomplishing the test in a few seconds.

15. The consumption of chemical reagents is low, and the chemical reagents are not needed in the work of the rapid detection system.

16. The discharge of hazardous waste is less, the working frequency of the rapid detection system and the chemical detection system is controlled by the central control system, the operation frequency of the chemical detection system can be effectively reduced, and the discharge of the hazardous waste is reduced.

The scheme of the detection equipment is that in the same equipment, a rapid method and a chemical reagent method are used for measurement, the chemical method is used for correcting the rapid method by utilizing the accurate characteristic of the chemical method measurement, the rapid method in an instrument is used for measurement daily, and the consumption of the chemical reagent is reduced gradually; the two methods are combined, so that the accuracy is improved, and the consumption of chemical reagents is reduced gradually. And the chemical method monitoring system is used for correcting the quick-reading detection system, so that the accuracy of the quick-reading detection system is improved. The monitoring is carried out by using a rapid detection system in daily life.

Chemical method explanation: namely, a method of performing a chemical reaction using a chemical reagent in the measurement to thereby measure the corresponding detection factor. For example: and (4) digesting the water sample by using potassium dichromate, and determining the COD of the water body. Under the condition of strong acid, potassium dichromate is used as an oxidant, silver sulfate is used as a catalyst, mercury sulfate is used as a masking agent, a water sample is subjected to high-temperature high-pressure digestion, and the absorbance of trivalent chromium at the wavelength of 660nm is measured and converted into a concentration value of COD.

Quick explanation: taking COD determination as an example, the ultraviolet absorption method is used for rapid determination, the absorbance of the water body is determined by using light with the wavelength of 254nm, and the COD concentration of the water body can be calculated according to the absorbance of the water sample according to the linear relation between the absorbance of the wavelength and the COD of the water body.

Monitoring factors of the water body: the method refers to the measurement items of COD, ammonia nitrogen, total phosphorus, total nitrogen and the like of the water body.

The chemical method monitoring system corrects the fast reading detection system:

the method is characterized in that a water sample is measured once by using a rapid method and a chemical method, and a calculation formula of the rapid method is corrected according to the numerical value measured by the chemical method.

For example: when the COD is measured by a chemical method to be 45mg/L, the COD is measured by a rapid method to be 40 mg/L. The rapid method has the calculation formula as follows: y = AX + B, where A, B is a constant, Y is the COD value, and X is the absorbance value. The constant B in the calculation formula for the rapid method was corrected to B1, B1= B +5, because the accuracy and stability of the chemical method measurement were better.

A rapid detection method is added into a traditional chemical method on-line monitor. For example: taking a COD on-line monitoring analyzer as an example, a spectrum detection unit can be added to the flow path inside the analyzer as a rapid detection system. The spectrum detection unit detects the absorbance of the water body by using a specific wavelength, and calculates the COD value of the water body by using the linear relation between the COD in the water and the absorbance of the water body at the specific wavelength. Meanwhile, the chemical detection system is used for calibrating the rapid detection unit regularly, so that the data accuracy of the rapid detection system is improved.

Take a water quality ammonia nitrogen on-line monitor as an example. The traditional online monitor for water quality ammonia nitrogen uses a salicylic acid chemical method to determine the ammonia nitrogen content in water, and has the working principle that under an alkaline condition, ammonium and ammonia ions in a detected water sample react with hypochlorite to generate chloramine; under the condition of 40 ℃ and the existence of a catalyst, chloramine reacts with salicylate to generate a blue-green complex, the absorbance of the blue-green complex is measured with the wavelength of 660nm, and the blue-green complex is converted into a corresponding concentration value. Device power consumption: the time for each measurement was about 45 minutes, the amount of reagent used was 50mL, the amount of hazardous waste was 50mL, and the power of the apparatus was 200 watts.

A water quality ammonia nitrogen monitoring electrode comprises the following components: working electrode, reference electrode, ion selective membrane and electrolyte. Only the ammonium ions to be detected can migrate through the ion selection membrane and generate charge change, so that a potential is generated on the working electrode, the potential value is proportional to the ion concentration, and the potential of the reference electrode is constant. Based on the nernst equation, the potential difference between the working electrode and the reference electrode is measured and converted into ammonia nitrogen concentration. The power consumption is as follows: 10 seconds each time, no reagent, no hazardous waste discharge, 10 watts of equipment power.

Based on the utility model, the new equipment is internally provided with a rapid detection system and a chemical determination system at the same time, when a detected water sample enters the instrument, the detected water sample firstly enters the rapid detection system for determination, the ammonia nitrogen of the detected water sample is determined by a water quality ammonia nitrogen monitoring electrode, and the water quality ammonia nitrogen monitoring electrode outputs an electric signal to an equipment control system. And the ammonia nitrogen value of the detected water sample calculated by the control system is compared with the determination conditions stored in the control system, and when the conditions are met, the chemical determination system is started to determine the ammonia nitrogen of the detected water sample.

For example: when the ammonia nitrogen is measured to be 2.5mg/L by a rapid method, the detection data in the previous period is 3.5mg/L, the data fluctuation is-28.57%, and the data fluctuation is more than +/-15%, so that the starting condition of a chemical method system is met. And starting a chemical method system to determine that the ammonia nitrogen is 2.8mg/L, and determining that the ammonia nitrogen of the current water sample to be detected is 2.8mg/L by the equipment. At the same time, a rapid method calibration procedure is initiated. The rapid method has the calculation formula as follows: y = AX + B, wherein A, B is a constant, Y is an ammonia nitrogen value, and X is a water quality ammonia nitrogen monitoring electrode output value. The constant A, B in the calculation formula of the rapid method is corrected to be A1 and B1, so that the aim of calibrating the water quality ammonia nitrogen monitoring electrode is fulfilled.

The rapid method in the daily used instrument measures, reduces the consumption of chemical reagents and the discharge of dangerous waste, and reduces the power consumption of the system. And (4) correcting the rapid detection system by using a chemical method monitoring system according to the period setting, so that the accuracy of the rapid detection system is improved.

The high-efficiency and rapid detection method can effectively improve the monitoring efficiency of the instrument from 30-60 minutes for each detection to 2-10 seconds for each detection. The high accuracy rate and the instrument inherits the advantages of the traditional chemical method on-line monitoring instrument, and the accuracy rate is high. The reagent consumption is low, the instrument uses a rapid detection method, and the daily detection can realize zero reagent consumption. The instrument for low-emission hazardous waste uses a rapid detection method, and zero waste liquid emission can be realized through daily detection. The power consumption of the system is reduced, the instrument uses a rapid detection method, and the daily detection power consumption is reduced by 80 percent compared with the daily detection power consumption of a chemical method.

As shown in fig. 5, the liquid detection device comprises a device detection module, a rapid detection module and a communication line, in this case, a water quality monitoring sensor is used as the rapid detection module, the rapid detection module is connected with the device detection module through the communication line, and the device detection module is connected with a chemical method instrument through the communication line.

The device detection module, the rapid detection module, the communication line and original chemical method instruments and devices of a user form a new detection system, in the COD item detection process, the rapid detection module detects the COD item of the detected water body, then the detection result and/or the detection process parameters are transmitted to the device detection module, and the device detection module compares the received information with the built-in conditions of the device detection module; when the detection data meet the built-in conditions of the equipment detection module, starting a chemical method COD instrument for detection, and taking the detection data of the chemical method COD instrument as the detection result of the COD item of the detected water body; and when the detection data do not accord with the built-in condition of the equipment detection module, taking the detection data of the rapid detection module as the detection result of the COD item of the detected water body.

The quick detection module in the detection equipment is different according to different requirements, the selected detection module is different, the electrode quick detection system is selected, other quick detection systems are selected for the optical detection system, and no matter which quick detection system is used, the detected data can be reported to the management system in time for data arrangement and analysis, so that the liquid detection data can be obtained as soon as possible.

The quick detection module does the quick detection system of electrode, the quick detection system of electrode is including detecting pond and detection electrode, the one end of detection electrode is inserted in the detecting pond, the output of detection electrode is connected the input of equipment detection module. The original equipment of the user is little changed, and the deployment and the installation are convenient. The detection efficiency is improved, the detection is carried out once per hour by the original system, and the detection is improved to once per second. The consumption of chemical reagents and the generation of dangerous waste liquid are reduced.

As shown in fig. 6, the provided liquid detection device comprises a rapid detection module and a chemical detection module, in this case, a water quality monitoring sensor is used as the rapid detection module, and the rapid detection module is connected with the chemical detection module through a communication line.

Adding a control program in original chemical method instrument equipment of a user to enable a quick detection module and the original chemical method instrument equipment of the user to form a new detection system, detecting a COD item of a detected water body by the quick detection module in a COD item detection process, transmitting a detection result and/or a detection process parameter to the chemical method instrument equipment, and judging received information by the chemical method instrument equipment by adding the control program in the chemical method instrument equipment; when the detection data and/or the detection process parameters meet the built-in conditions of the control program, starting a chemical method COD instrument for detection, and taking the detection data of the chemical method COD instrument as the detection result of the COD item of the detected water body; and when the detection data do not accord with the built-in condition of the control program, taking the detection data of the rapid detection module as the detection result of the COD item of the detected water body.

The quick detection module in the detection equipment is different according to different requirements, the selected detection module is different, the electrode quick detection system is selected, other quick detection systems are selected for the optical detection system, and no matter which quick detection system is used, the detected data can be reported to the management system in time for data arrangement and analysis, so that the liquid detection data can be obtained as soon as possible.

The quick detection module does the quick detection system of electrode, the quick detection system of electrode is including detecting pond and detection electrode, the one end of detection electrode is inserted in the detecting pond, the output of detection electrode is connected the input of equipment detection module. The original equipment of the user is little changed, and the deployment and the installation are convenient. The detection efficiency is improved, the detection is carried out once per hour by the original system, and the detection is improved to once per second. The consumption of chemical reagents and the generation of dangerous waste liquid are reduced.

The liquid detection process is as follows: step S1, along with scientific development and technological progress, environmental protection is more and more emphasized, along with the gradual aggravation of environmental pollution, various environmental protection policies are issued by related departments, according to the emergence of the environmental protection policies, natural resources, such as water resources, need to be detected, water resources are used as indispensable resource protection in environmental protection, water quality across the country needs to be correspondingly detected, water resources which do not accord with the national standard are treated, the detection of the water resources is at least divided into two kinds of detection, one is detection at a water source place, the other is detection brought back to a laboratory, and the detection brought back to the laboratory has high accuracy; the detection in a water source area has higher requirements on equipment, the detection speed is required to be high, and the accuracy of a detection result is guaranteed, so that the rapid detection can be realized through the liquid detection device, the accuracy of the detection result can also be effectively guaranteed, one end of a sensor or a collection pipe for rapid detection is placed in a water source, the liquid is rapidly detected or a water sample is sucked into the device for rapid detection, and the water quality detection is carried out after the water sample to be detected is collected; the detection device can be directly taken to the site for detecting water quality resources, the collection end of the collection pipe of the device is directly placed in the water to be detected to be directly detected on the spot, or the water sample of the water to be detected is collected through the container and is taken back to a laboratory for detection after being collected, and the water sample to be detected can be pumped into the detection pool to prepare the subsequent detection process.

Step S2, the rapid detection system transmits the detection data and/or the detection process parameters to the detection control system; or transmitting the detection process data to a system control system for data analysis and processing to generate detection data of the liquid to be detected; the method comprises the steps that in the process of detecting a water sample by a rapid detection system, detected result data and/or parameters in the detection process are transmitted to a detection control system together or separately, or in the process of detecting the sample to be detected, the data are transmitted to the detection control system, the detection control system analyzes and processes received data, and detection data of liquid to be detected are generated after the data are processed; the water sample is pumped into the device through the water pumping device, the rapid detection system carries out water quality detection or direct electrode electrolysis detection on the water sample, and as the device has rapid detection capability and also has the function of calibrating rapid detection, the detection speed of the device to liquid very rapidly outputs the detected result data to the detection control system for data analysis, and the analysis data is generated into a water quality data file according to the specified format according to the setting of system parameters.

And step S3, the detection data and/or the detection process parameters are judged and compared with the system parameter setting conditions, when the system parameter setting conditions are not met, the detection data of the liquid detection is the detection value of the rapid detection system, when the system parameter setting conditions are met, the chemical detection system is started to detect the liquid to be detected, and the rapid detection system is calibrated according to the detection data of the liquid to be detected by the chemical detection system. Comparing the detection data or the detection process parameters of the liquid to be detected with the set conditions in the system parameters, and taking the detection value of the rapid detection system as the detection data of the liquid detection when the set conditions in the system parameters are not met; the system compares the generated water quality data file for detecting the water resource with the set parameter conditions in the system, compares whether the detection data of the file meets the set conditions in the system parameters, starts the calibration detection system to detect the liquid to be detected when the set conditions in the system parameters are met, and calibrates the calculation formula of the rapid detection system according to the liquid data detected by calibration or calibrates the parameters in the detection process; and when the set conditions in the system parameters are not met, taking the detection numerical value of the rapid detection system as the detection data of the liquid detection. The parameter setting conditions in the system are various, and are respectively detection performance technical parameters of a detection product or data fluctuation conditions of rapid detection data or specific numerical conditions or formula calculation results of rapid detection data and data stored in an instrument or formula calculation results of detection process parameters or fixed starting time or chemical starting M times after the system is started N times or the rapid detection method is started M times after the system is started N times, wherein N, M refers to natural numbers. Detecting technical parameters of the detection performance of the product, such as data drift, data repeatability, indicating value error, zero drift or range drift and the like; rapidly detecting data fluctuation conditions of data, such as data drift, continuous data and other data fluctuation parameters; a specific numerical condition, such as a warning numerical value or a specific numerical value; formula calculation results of the rapid detection data and data stored in the instrument, such as data errors, data average errors, data drift and the like; and (4) calculating results of formulas of detection process parameters, such as error, drift, relative error, stability and other data.

The system parameter setting condition is that the technical parameter of the detection performance of the detection product or the data fluctuation condition of the rapid detection data or the specific numerical value condition or the formula calculation result of the rapid detection data and the data stored in the instrument or the formula calculation result of the detection process parameter or the fixed starting time or the chemical method is started for M times after the system is started for N times by the rapid detection method, wherein N, M refers to a natural number.

The detection process parameters refer to various data generated in the detection process, some of the data participate in the calculation of the final detection result, and some of the data serve as auxiliary conditions for transmitting equipment information. For example, in the process of finally measuring the COD data of the water body, the COD data detected by the rapid detection module is 10mg/L, and the intermediate data includes: in the detection process, the temperature of the detected liquid is 15 ℃, the detection optical voltage is 1500mv, and the light transmittance of the liquid is 85.3%. The detected photovoltage and the liquid light transmittance are substituted into a calculation formula to calculate COD data, and the liquid temperature is used as an auxiliary judgment basis to judge whether the water body meets the application range of the instrument (most devices require that the data of the device with the detected water body temperature of 5-60 ℃ is valid, and when the data exceeds the range, the data is invalid).

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A liquid detection device, characterized in that: the liquid detection equipment comprises a system control module, a quick detection module and a protective shell, wherein the system control module and the quick detection module are respectively arranged in the protective shell or the system control module is arranged in the protective shell, and the output end of the quick detection module is connected with the input end of the system control module.

2. The liquid detection apparatus according to claim 1, further comprising a chemical detection module, wherein an output end of the chemical detection module is connected to an input end of the system control module, the chemical detection module is disposed in the protective housing, and an output end of the system control module is connected to a control end of the chemical detection module.

3. The liquid detection apparatus of claim 2, wherein the chemical detection module comprises a fluid pipe, a fluid valve and a detection unit, the fluid valve being connected to the detection unit through the fluid pipe.

4. The liquid detection apparatus of claim 3, wherein the rapid detection module is a sensor rapid detection system or an optical detection system or a photoelectric detection system or an electrochemical detection system or a semiconductor detection system.

5. The liquid detection apparatus of claim 4, wherein the sensor rapid detection system comprises a sensor having an output coupled to an input of the system control module.

6. The liquid detection apparatus according to claim 5, wherein the sensor rapid detection system further comprises a detection cell and a liquid pipe, one end of the liquid pipe is communicated with the detection cell, and the detection end of the sensor is disposed in the detection cell.

7. The liquid detection apparatus according to claim 4, wherein the optical detection system comprises a light path transmission module and a light path receiving module, and the light path transmission module transmits detection light to pass through the liquid to be detected and is received by the light path receiving module.

8. The liquid detection apparatus according to claim 6 or 7, wherein the system control module includes a detection control main board, an output end of the detection control main board is connected to a display screen, the display screen is disposed on the protective housing, the detection control main board is provided with a microprocessor, a display driving module, a data receiving module, a data transmission module and a data storage module, an output end of the data receiving module is connected to an input end of the microprocessor, an output end of the microprocessor is respectively connected to an input end of the display driving module, an input end of the data transmission module and a data end of the data storage module, and an output end of the display driving module is connected to an input end of the display screen.

9. A liquid detection system, characterized in that it comprises a liquid detection device according to any one of claims 1-8.

10. An environmental detection system, wherein the liquid detection system comprises the liquid detection system of claim 9.

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