Movable full-automatic online sewage prohibited matter detection device

Abstract

The utility model belongs to the technical field of prohibited substance detection, and discloses a mobile full-automatic online sewage prohibited substance detection device which at least comprises a mobile operation table, a sampling system, a pretreatment system, a sample detection system, a data analysis system, a consumable source and a power supply, the mobile operation table is provided with independent interval spaces for accommodating the sampling system, the pretreatment system, the sample detection system, the data analysis system, the consumable source and the power supply, and corresponding channels are arranged among the independent interval spaces for realizing transfer of samples among the sampling system, the pretreatment system and the sample detection system; the mobile operation table is divided into an upper layer structure and a lower layer structure, the lower layer structure is used for containing the sampling system, the consumable source and the power supply, and the upper layer structure is used for containing the pretreatment system, the sample detection system and the data analysis system. The system can operate in a severe detection environment for a long time, and does not need manual supervision.

Description

Technical Field

[0001] The present invention belongs to the technical field of prohibited object detection, and specifically relates to a mobile fully automatic online sewage prohibited object detection device. Background Art

[0002] Contraband, such as drugs, enter the human body after illegal ingestion and participate in the body's metabolism. They are excreted into municipal sewage as contraband substances or their metabolites, and finally flow into the sewage treatment plant in the area through the sewage pipe network. The sewage epidemiology theory estimates the per capita contraband consumption in a certain area by detecting the concentration of contraband and its metabolites in the sewage of a certain area, so as to evaluate and monitor the contraband consumption in the area. Compared with other traditional drug monitoring methods, this method has the advantages of more objective, continuous and real-time monitoring, and has been widely used by drug control agencies or organizations in various countries around the world. The prohibited substances in sewage have low content and complex composition, which requires a highly sensitive detection method. The current routine work steps for sewage epidemiological monitoring of prohibited substances are sampling, sample storage, transportation, pretreatment, computer testing and data processing. Water samples at the sewage treatment plant inlet need to be collected manually and then taken back to the laboratory for manual pretreatment and testing. There is a risk of sample degradation during transportation, and the processing steps are cumbersome, time-consuming, and inefficient, which consumes a lot of human resources. In addition, it can only detect the concentration of prohibited substances within a certain period of time, making it difficult to achieve real-time online monitoring of the concentration of prohibited substances in sewage.

[0003] The existing technologies also provide technical solutions that can realize the detection of prohibited substances in sewage, but they do not take into account how the equipment for sampling, sample storage, transportation, pre-treatment, on-machine testing and data processing can operate effectively for a long time in a harsh testing environment and ensure the detection accuracy. Summary of the invention

[0004] The present invention aims to overcome at least one defect (shortcoming) in the prior art and to provide a mobile, fully automatic online sewage prohibited substance detection device with a reasonable structural design and conducive to ensuring detection accuracy.

[0005] A mobile fully automatic online sewage prohibited substance detection device comprises at least a mobile operating table, a sampling system, a pre-treatment system, a sample detection system, a data analysis system, a consumable source and a power supply. The mobile operating table is provided with independent compartments for accommodating the sampling system, the pre-treatment system, the sample detection system, the data analysis system, the consumable source and the power supply. Corresponding channels are arranged between the independent compartments for realizing the transfer of samples between the sampling system, the pre-treatment system and the sample detection system, the replenishment of the sample detection system by the consumable source, and the power supply to other equipment by the power supply. The mobile operating table is divided into an upper structure and a lower structure. The lower structure is used to accommodate the sampling system, the consumable source and the power supply, and the upper structure is used to accommodate the pre-treatment system, the sample detection system and the data analysis system.

[0006] Preferably, the upper structure is divided into a sample processing area and a sample detection area by an upper partition, the pre-treatment system is accommodated in the sample processing area, and the sample detection system and the data analysis system are accommodated in the sample detection area; the lower structure is divided into a sample collection area, an air supply area and a power supply area by a lower partition, the sampling system, the consumable source and the power supply are accommodated in the sample collection area, the air supply area and the power supply area respectively, the upper partition and the lower partition are staggered in the transverse direction, so that the sample detection area is arranged across the sample collection area, the air supply area and the power supply area; the above-mentioned partition space is provided with a door.

[0007] Preferably, the door is arranged on the same side of the mobile operating table, the sample processing area and the sample detection area are provided with the upper counter front cabinet door to close the two areas at the same time, the sample collection area is provided with the lower counter cabinet door No. 1, the gas supply area is provided with the lower counter cabinet door No. 2, the power supply area is provided with the lower counter cabinet door No. 3, the front cabinet door of the upper counter opens upward, and is provided with a positioning device to keep the front cabinet door of the upper counter in an open state, and the lower counter cabinet door No. 1, the lower counter cabinet door No. 2 and the lower counter cabinet door No. 3 are stored in the mobile operating table after opening.

[0008] Preferably, the display device of the data analysis system is arranged on a side of the sample detection area away from the sample processing area, and the mobile operating table is also provided with a right cabinet door of the upper counter on this side. The right cabinet door of the upper counter opens upward, and a positioning device is provided to keep the right cabinet door of the upper counter in an open state.

[0009] Preferably, cabinet door slide rails are provided on both sides of the top surface and the front surface of the sample collection area, the gas supply area and the power supply area, and cabinet door No. 1 of the lower counter, cabinet door No. 2 of the lower counter and cabinet door No. 3 of the lower counter are respectively slidably connected with the sample collection area, the gas supply area and the power supply area through the cabinet door slide rails on both sides. After cabinet door No. 1 of the lower counter, cabinet door No. 2 of the lower counter and cabinet door No. 3 of the lower counter slide upward and open, they are respectively stored on the inner sides of the top surfaces of the sample collection area, the gas supply area and the power supply area through the support of the cabinet door slide rails.

[0010] Preferably, a cleaning system for cleaning the sampling system and a waste liquid collection system for recovering waste liquid are also provided in the sample collection area. The sample processing area is arranged above the sample collection area. The sampling system is arranged on one side of the sample collection area close to the side of the mobile operating table, and its sampling end extends downward out of the mobile operating table, and its sample output end extends upward into the sample processing area. The sample collection area extends to the middle of the mobile operating table. The cleaning system and the waste liquid collection system are arranged on the other side of the sample detection area away from the side of the mobile operating table, and are arranged in the middle of the mobile operating table.

[0011] Preferably, the sampling system comprises a plurality of groups of sampling units, which are arranged in a plurality of rows in the sample collection area and supported by a shock absorbing device.

[0012] Preferably, the pretreatment system is an online solid phase extraction device, which specifically includes a support frame, a tray, a movable needle seat module, a sample receiving module, a standard sample addition module, a vortex mixing module, a needle cleaning module and a solid phase extraction module. The tray is arranged on the lower side of the support frame, supporting the standard sample addition module, the needle cleaning module, the sample receiving module and the vortex mixing module. The movable needle seat module is installed on the support frame and has two horizontal and vertical moving dimensions. The sample is initially input into the sample receiving module through the movable needle seat module, and finally output to the sample detection system through the solid phase extraction module.

[0013] Preferably, the sample enters the sample detection area through the upper partition after being processed by the online solid phase extraction device in the sample processing area. The sample detection system includes a chromatographic separation device and a mass spectrometer. The chromatographic separation device is arranged on one side of the sample detection area close to the upper partition, and the data analysis system is arranged on the other side of the sample detection area away from the upper partition. The mass spectrometer is arranged between the chromatographic separation device and the data analysis system. After the sample passes through the chromatographic separation device and the mass spectrometer in sequence, the chromatographic separation device and the mass spectrometer input the detection data into the data analysis system.

[0014] Preferably, the chromatographic separation device is a high performance liquid chromatograph, the mass spectrometer is a triple quadrupole mass spectrometer, and the consumable source is an integrated nitrogen generator, the nitrogen generated by which enters the sample detection area from the gas supply area upward and forms the input gas source of the triple quadrupole mass spectrometer.

[0015] Compared with the prior art, this solution has the following beneficial effects:

[0016] This solution rationally allocates the positions of different systems in the mobile operating platform, places precision equipment on the upper level, and places other equipment, especially heavier equipment, on the lower level, which is beneficial to the stability of the entire equipment operation and ensures the accuracy of detection. This enables the mobile fully automatic online sewage prohibited substance detection device to operate for a long time in harsh detection environments without the need for human supervision, making the solution more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are for illustrative purposes only and should not be construed as limitations on the present invention. In order to better illustrate the present invention, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0018] Figure 1 It is a structural diagram of a mobile fully automatic online sewage prohibited substance detection device.

[0019] Figure 2 It is a structural schematic diagram of a mobile operating table.

[0020] Figure 3 It is a schematic diagram of the structure of the sampling system, cleaning system and waste liquid collection system.

[0021] Figure 4 It is a structural diagram of the pre-treatment system.

[0022] Figure 5 It is a schematic diagram of the structure of the solid phase extraction module.

[0023] Figure 6 It is a structural diagram of the sample detection system and the data analysis system.

[0024] Figure 7 Schematic diagram of the structure of the consumable source and power supply.

[0025] Explanation of reference numerals: 1 sample collection area, 2 sample processing area, 3 sample detection area, 4 gas supply area, 5 power supply area, 6 front door of upper counter, 7 right door of upper counter, 8 door hinge, 9 door No. 1 of lower counter, 10 door No. 2 of lower counter, 11 door No. 3 of lower counter, 12 door slide rail, 13 wheel, 14 horizontal handle; 101 sampling bottle, 102 solenoid valve, 103 filter screen, 104 medium-sized grille metal filter, 105 small grille Metal filter, 106 sampling tube, 107 foam cotton fixing pad, 108 filter membrane device, 109 water filter membrane, 110 water storage barrel, 111 waste liquid barrel (built-in sewage waste liquid barrel and organic waste liquid barrel), 112 water pump; 201 support frame, 202 tray, 203 horizontal moving arm, 204 vertical moving arm, 205 needle seat, 206 standard sample needle, 207 lock, 208 injection needle, 209 sampling needle, 210 six-way valve, 211 ten-way valve, 212 SPE1 column, 213 SPE2 column, 214 standard sample tray, 215 needle wash tank, 216 sample tray, 217 vortexer, 218 injection tank; 301 high pressure constant flow pump, 302 column oven, 303 chromatographic column, 304 mobile phase storage bottle, 305 tray, 306 peek tube, 307 triple quadrupole mass spectrometer, 308 computer; 401 nitrogen generator integrated machine; 501 battery. DETAILED DESCRIPTION

[0026] Figures 1 to 6 A mobile fully automatic online sewage contraband detection device is shown. Figure 1 The device at least includes a mobile operating table, a sampling system, a pre-treatment system, a sample detection system, a data analysis system, a consumable source and a power supply. The mobile operating table is provided with independent compartments to accommodate the sampling system, the pre-treatment system, the sample detection system, the data analysis system, the consumable source and the power supply. Corresponding channels are provided between each independent compartment to realize the transfer of samples between the sampling system, the pre-treatment system and the sample detection system, the replenishment of the consumable source to the sample detection system, and the power supply to other devices. The mobile operating table is divided into an upper structure and a lower structure. The lower structure is used to accommodate the sampling system, the consumable source and the power supply, and the upper structure is used to accommodate the pre-treatment system, the sample detection system and the data analysis system.

[0027] The above-mentioned device reasonably allocates the positions of different systems in the mobile operating platform, sets the precision equipment on the upper layer, and sets other equipment, especially the heavier equipment on the lower layer, which is beneficial to the stability of the operation of the entire equipment and ensures the accuracy of detection. As a result, the mobile fully automatic online sewage prohibited substances detection device can operate for a long time in harsh detection environments without the need for human supervision, making the solution more practical.

[0028] The upper structure is divided into a sample processing area 2 and a sample detection area 3 by an upper partition. The pre-treatment system is contained in the sample processing area 2, and the sample detection system and the data analysis system are contained in the sample detection area 3. The pre-treatment system, the sample detection system, and the data analysis system are precision equipment. They are separated into two independent areas by an upper partition, which can prevent the pre-treatment system from affecting the sample detection system. The lower structure is divided into a sample collection area 1, an air supply area 4, and a power supply area 5 by a lower partition. The sampling system, the consumable source, and the power supply are contained in the sample collection area, the air supply area 4, and the power supply area 5, respectively. The sampling system is not a precision system, and the consumable source and the power supply are heavy equipment. They are separated into three independent areas by a lower partition, which is convenient for maintenance personnel to carry out targeted maintenance and overhaul. The upper partition and the lower partition are staggered in the transverse direction, that is, the two upper areas and the three lower areas are staggered, so that the sample detection area 3 can be arranged across the sample collection area, the air supply area 4 and the power supply area 5, that is, the lower partition supports the upper sample detection area 3 at the same time. This structure can provide sufficient stability support for the sample detection area 3 under the premise of simplifying the structure, so that the sample detection area 3 can carry heavier equipment and work stably.

[0029] See also Figure 2, the above-mentioned partition space is provided with a door, and the door is provided on the same side of the mobile operating table. The sample processing area 2 and the sample detection area 3 are provided with the upper counter front door 6 to simultaneously close the two areas, the sample collection area 1 is provided with the lower counter No. 1 door 9, the gas supply area 4 is provided with the lower counter No. 2 door 10, and the power supply area 5 is provided with the lower counter No. 3 door 11. The upper counter front door 6 opens upward, and a positioning device is provided to keep the upper counter front door 6 in an open state. When the upper counter front door 6 opens upward and remains in an open state, a shielding structure of the operating area can be formed to prevent rain or dust from entering the sample processing area 2 and the sample detection area 3 during the inspection or maintenance process. The lower counter No. 1 door 9, the lower counter No. 2 door 10 and the lower counter No. 3 door 11 are stored in the mobile operating table after opening, and will not interfere with the operation of the staff after opening, and it is convenient for multiple doors to be opened at the same time to cope with different needs.

[0030] Door slide rails 12 are provided on both sides of the top surface and the front surface of the sample collection area, the gas supply area 4 and the power supply area 5. The lower counter door No. 1 9, the lower counter door No. 2 10 and the lower counter door No. 3 11 are respectively slidably connected with the sample collection area, the gas supply area 4 and the power supply area 5 through the door slide rails 12 on both sides. After the lower counter door No. 1 9, the lower counter door No. 2 10 and the lower counter door No. 3 11 slide upward and open, they are supported by the door slide rails 12 and stored in the inner sides of the top surfaces of the sample collection area, the gas supply area 4 and the power supply area 5 respectively, so as to avoid interference of the opened doors to the operation of the staff while ensuring the simplification of the structure.

[0031] The data analysis system is composed of a computer host and a display device, which is responsible for sending instructions to each system and receiving test data. The display device of the data analysis system is arranged on a side of the sample detection area 3 away from the sample processing area 2, and the mobile operating table is also provided with a cabinet door 7 on the right side of the upper counter on this side, so that the staff can view or process the test results in real time. The cabinet door 7 on the right side of the upper counter opens upward, and a positioning device is provided to keep the cabinet door 7 on the right side of the upper counter in an open state. When the cabinet door 7 is kept in an open state, a shielding structure of the operation area can be formed to prevent rain or dust from entering the sample detection area 3 during the process of viewing or processing the test results. Cabinet door hinges 8 are arranged on the front side and right side of the top surface of the sample processing area 2 and the sample detection area 3, and the front cabinet door 6 of the upper counter and the cabinet door 7 on the right side of the upper counter are respectively pivotally connected to the sample processing area 2 and the sample detection area 3 through the cabinet door hinges 8.

[0032] See also Figure 3The sample collection area 1 is also provided with a cleaning system for cleaning the sampling system and a waste liquid collection system for recovering waste liquid. The sample processing area 2 is arranged above the sample collection area 1, and the sampling system is arranged on one side of the sample collection area 1 close to the side of the mobile operating table. Its sampling end extends downward out of the mobile operating table, which is convenient for probing into the sewage for sampling. Its sample output end extends upward into the sample processing area 2, and can supply samples to the sample processing area 2 located above in the shortest path. The sample collection area 1 extends to the middle of the mobile operating table, and the cleaning system and the waste liquid collection system are arranged in the sample detection area 3 on the other side away from the side of the mobile operating table, and are arranged in the middle of the mobile operating table.

[0033] The sampling system includes multiple groups of sampling units, for example, 12 groups, which can collect 12 units of sewage samples at a time to meet different sampling modes. The sampling modes can be selected from 24-hour continuous mixed sampling, fixed interval sampling and random interval sampling. 24-hour continuous mixed sampling means taking a sample every 3 hours, taking 50 mL each time, collecting 8 times in total, and placing it in the same sampling unit; fixed interval sampling means taking a sample every 2 hours or 4 hours, taking 400 mL each time, collecting 12 or 6 times in total, and placing each sample in a different sampling unit; random interval sampling means that the interval sampling time is random, taking 400 mL each time, and collecting up to 12 times, and placing each sample in a different sampling unit. Multiple groups of sampling units are arranged in several rows in the sample collection area 1, and supported by a shock absorbing device (for example, a foam cotton fixed pad 107) to prevent the movement of the device from causing the sampling unit to fall over and be damaged.

[0034] Multiple groups of sampling units are connected in parallel between the sampling end and the sample output end of the sampling system. Each group of sampling units includes a sampling bottle 101, an input branch pipe and an output branch pipe, wherein one end of the input branch pipe is connected to the sampling bottle 101, and the other end is connected to the sampling end, and one end of the output branch pipe is connected to the sampling bottle 101, and the other end is connected to the sample output end. Both the input branch pipe and the output branch pipe are sampling tubes 106 equipped with a solenoid valve 102, and the solenoid valve 102 is used to control whether the sampling bottle 101 is enabled and the flow rate of the sample. The sampling end includes an input main pipe, one end of which is a free end that can be probed into the sewage to collect samples, and the other end is connected to each input branch pipe. The sample output end includes an output main pipe, one end of which is connected to each output branch pipe, and the other end is connected to the sample processing area 2. Both the input main pipe and the output main pipe are sampling tubes 106 equipped with a water pump 112, and the water pump 112 is used to provide power for the flow of the sample.

[0035] The input main pipe is equipped with a filter screen 103 and a medium-sized grid metal filter 104 arranged according to the sample input direction. The filter screen 103 is used to filter larger impurities such as particles in the sewage, and the medium-sized grid metal filter 104 is used to perform secondary filtration on the sewage. A small grid metal filter 105 is configured on the input branch pipe for tertiary filtration of the sewage. The output main pipe is also equipped with a filter membrane device 108, which has a built-in 0.45μm water filter membrane 109 to perform final filtration and purification on the sewage.

[0036] The cleaning system consists of a water storage tank 110 and a water pipe. One end of the water pipe is connected to the input main pipe, and the other end is connected to the water storage tank 110. The water storage tank 110 contains clean tap water for cleaning all the pipes of the sampling system. The waste liquid collection system includes a sewage waste liquid tank 111 and an organic waste liquid tank 111111, which are used to receive all waste liquids generated by the entire device.

[0037] See also Figure 4 The pretreatment system is an online solid phase extraction device, which realizes sample collection, labeling, vortexing and extraction, and specifically includes a support frame 201, a tray 202, a movable needle seat module, a sample receiving module, a standard sample addition module, a vortex mixing module, a needle cleaning module and a solid phase extraction module. The tray 202 is arranged on the lower side of the support frame 201, supporting the standard sample addition module, the needle cleaning module, the sample receiving module and the vortex mixing module. The movable needle seat module is installed on the support frame 201 through a transverse moving arm 203 and a longitudinal moving arm 204, and has two transverse and longitudinal moving dimensions. The sample is initially collected to the sample receiving module through the movable needle seat module, and finally output to the sample detection system through the solid phase extraction module.

[0038] The sample receiving module includes a sample bottle for collecting samples and a sample tray 216 for holding the sample bottle; the standard sample adding module includes a standard sample bottle for storing a standard internal standard solution and a standard sample tray 214 for holding the standard sample bottle; the vortex mixing module uses a twelve-position vortex instrument 217; Figure 5 As shown, the solid phase extraction module is composed of two six-way valves 210 , a ten-way valve 211 and two solid phase extraction columns 212 , 213 .

[0039] The movable needle seat module includes a needle seat 205 and three sample needles with different purposes built into the needle seat 205, namely, a standard sample needle 206, a sampling needle 209 and an injection needle 208. Each needle is connected to the needle seat 205 by a moving rod, and the moving rod can control each sample needle to move up and down. A transparent protective cover is installed on the outer side of the needle seat 205 to protect the sample needle from being easily damaged and to facilitate observation of the movement state of the sample needle. Among them, the sampling needle 209 is connected to the output main pipe in the sampling system, and is used to collect samples from the sampling system into a sample bottle; the standard sample needle 206 is used to draw a standard internal standard solution from a standard sample bottle and inject it into the sample bottle. A lock 207 is installed at the syringe of the standard sample needle 206, which is used to grab and move the sample bottle, grab the sample bottle to the vortex 217 for vortex oscillation, and grab the sample bottle to the original position of the sample tray 216 after oscillation; the injection needle 208 is used to draw samples from the sample bottle and inject them into the solid phase extraction module. The needle cleaning module is provided with three needle washing slots 215. After the sampling needle 209, the standard sample needle 206 and the injection needle 208 complete the injection, they enter the corresponding needle washing slots 215 respectively and return to their positions after cleaning the outer and inner walls of the needles.

[0040] After being processed by an online solid phase extraction device in the sample processing area 2, the sample enters the sample detection area 3 through an upper partition. The sample detection system includes a chromatographic separation device and a mass spectrometer. The chromatographic separation device is arranged on one side of the sample detection area 3 close to the upper partition, and the data analysis system is arranged on the other side of the sample detection area 3 away from the upper partition. The mass spectrometer is arranged between the chromatographic separation device and the data analysis system. After the sample passes through the chromatographic separation device and the mass spectrometer in turn, the chromatographic separation device and the mass spectrometer input the detection data into the data analysis system.

[0041] See also Figure 6 The chromatographic separation device is a high performance liquid chromatograph, which is composed of a high pressure constant flow pump 301, a column oven 302, a chromatographic column 303, a mobile phase storage bottle 304 and a tray 305, and is used to separate the target; the mass spectrometer is a triple quadrupole mass spectrometer 307, which is composed of an ion source, an ion transmission system, a vacuum system, a mass analyzer and a detector, and is used to separate samples and detect trace amounts. Please refer to Figure 7, the consumable source is the nitrogen generator integrated machine 401, the nitrogen generated by it enters the sample detection area 3 from the gas supply area 4 upwards, and forms the input gas source of the triple quadrupole mass spectrometer. The power supply is the battery 501 and the UPS voltage-stabilized power supply, which provide power for the entire sewage contraband detection device. The battery has a direct charging mode and a mobile mode. The direct charging mode is that the battery obtains power from a fixed socket, and the mobile mode is that there is no need for a fixed socket to provide power to the battery, and the sewage contraband detection device relies on the battery's own power. After the battery is fully charged, it can maintain the continuous operation of the entire monitoring device for 36 hours. If the power provided by the battery is insufficient to maintain for 1 hour, it will trigger the power supply area to ring an alarm. If the battery is suddenly damaged and the power is cut off, the UPS voltage-stabilized power supply will be immediately started to supply power for the entire monitoring device for a maximum of 1 hour. Wheels 13 are provided at the bottom of the mobile operating table, and a horizontal handle 14 is installed on the left side to assist the movement of the mobile operating table.

[0042] In order to enable technicians in this field to better understand the present scheme, the present scheme is further described in detail below in conjunction with the working process of a mobile fully automatic online sewage prohibited substance detection device in investigating the consumption of prohibited substances by the population served by a sewage treatment plant.

[0043] The mobile fully automatic online sewage prohibited substance detection device was moved to the water inlet of the sewage treatment plant, and the sampling end of the sample collection area 1 was extended below the liquid level of the water inlet to start sampling. The sampling mode was random interval sampling. The sewage sample passed through the filter 103 at a flow rate of 0.8 L / min to block the particulate impurities in the sewage, and then passed through the medium-sized grid metal filter 104 and the small grid metal filter 105 in turn to achieve primary purification, and entered the sampling bottle 101. After the sampling bottle 101 was full of 400 mL of water sample, the water pump 112 pumped the water sample in the bottle to the filter membrane device 108 for filtration, and finally reached the sampling needle 209. The sampling needle 209 injected 5 mL of sample into the sample bottle. After the injection, the sampling needle 209 returned to its original position after cleaning the outer wall and the inner wall of the needle, and the standard sample needle 206 drew 20 μL of 25 μg / L methamphetamine-D5, 25 μg / L amphetamine-D5 and 200 μg / L cotinine-D3 standard internal standard solutions respectively. After the internal standard solution is injected, the lock 207 on the standard needle grabs the mouth of the sample bottle, grabs the sample bottle to the vortex 217 and vortexes it at a speed of 1500 r / min for 30 s. After vortexing, the standard needle grabs it to the original position of the sample plate, and the standard needle returns to its original position after cleaning the outer and inner walls of the needle. The injection needle 208 absorbs 1500 μL of sample and injects it into the injection slot 218 of the solid phase extraction module, and returns to its original position after cleaning the outer and inner walls of the needle. The sample enters from the injection slot 218, is introduced into the SPE1 column 212 through the mobile phase for the sample loading and elution steps, and the eluent enters the chromatographic column 303 for separation, and finally reaches the triple quadrupole mass spectrometer 307 for detection. The computer operating software displays the concentrations of the prohibited substances, its metabolite amphetamine, and the population marker cotinine, and simultaneously calculates the consumption of prohibited substances by the population served by the sewage treatment plant based on the sewage epidemiology theory.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A mobile fully automatic online sewage contraband detection device, comprising at least a mobile operating table, a sampling system, a pre-treatment system, a sample detection system, a data analysis system, a consumable source and a power supply, wherein the mobile operating table is provided with independent compartments to accommodate the sampling system, the pre-treatment system, the sample detection system, the data analysis system, the consumable source and the power supply, and corresponding channels are provided between the independent compartments to realize the transfer of samples between the sampling system, the pre-treatment system and the sample detection system, the consumable source to supplement the sample detection system, and the power supply to other equipment, characterized in that: The mobile operating table is divided into an upper structure and a lower structure. The lower structure is used to accommodate a sampling system, a consumable source and a power source, and the upper structure is used to accommodate a pre-processing system, a sample detection system and a data analysis system.

2. The mobile fully automatic online sewage prohibited substance detection device according to claim 1 is characterized in that: The upper structure is divided into a sample processing area (2) and a sample detection area (3) by an upper partition, the pre-treatment system is accommodated in the sample processing area (2), and the sample detection system and the data analysis system are accommodated in the sample detection area (3); the lower structure is divided into a sample collection area (1), an air supply area (4) and a power supply area (5) by a lower partition, the sampling system, the consumable source and the power supply are accommodated in the sample collection area (1), the air supply area (4) and the power supply area (5) respectively, the upper partition and the lower partition are staggered in the transverse direction, so that the sample detection area (3) is arranged across the sample collection area (1), the air supply area (4) and the power supply area (5); the above-mentioned partition space is provided with a door.

3. The mobile fully automatic online sewage prohibited substance detection device according to claim 2 is characterized in that: The doors are arranged on the same side of the mobile operating table; the sample processing area (2) and the sample testing area (3) are provided with an upper counter front door (6) to simultaneously close the two areas; the sample collection area (1) is provided with a lower counter No. 1 door (9); the gas supply area (4) is provided with a lower counter No. 2 door (10); the power supply area (5) is provided with a lower counter No. 3 door (11); the upper counter front door (6) opens upwards and is provided with a positioning device to keep the upper counter front door (6) in an open state; the lower counter No. 1 door (9), the lower counter No. 2 door (10) and the lower counter No. 3 door (11) are stored in the mobile operating table after being opened.

4. The mobile fully automatic online sewage prohibited substance detection device according to claim 3 is characterized in that: The display device of the data analysis system is arranged on a side of the sample detection area (3) away from the sample processing area (2), and the mobile operating table is also provided with a right cabinet door (7) of the upper counter on this side. The right cabinet door (7) of the upper counter opens upwards and is provided with a positioning device to keep the right cabinet door (7) of the upper counter in an open state.

5. The mobile fully automatic online sewage prohibited substance detection device according to claim 3 is characterized in that: Cabinet door slide rails (12) are also provided on both sides of the top surface and the front surface of the sample collection area (1), the gas supply area (4) and the power supply area (5); the lower counter cabinet door No. 1 (9), the lower counter cabinet door No. 2 (10) and the lower counter cabinet door No. 3 (11) are respectively slidably connected to the sample collection area (1), the gas supply area (4) and the power supply area (5) through the cabinet door slide rails (12) on both sides; the lower counter cabinet door No. 1 (9), the lower counter cabinet door No. 2 (10) and the lower counter cabinet door No. 3 (11) are respectively stored on the inner side of the top surface of the sample collection area (1), the gas supply area (4) and the power supply area (5) after they slide upwards and open.

6. The mobile fully automatic online sewage prohibited substance detection device according to any one of claims 2 to 5, characterized in that: The sample collection area (1) is also provided with a cleaning system for cleaning the sampling system and a waste liquid collection system for recovering waste liquid. The sample processing area (2) is arranged above the sample collection area (1). The sampling system is arranged on a side of the sample collection area (1) close to the side of the mobile operating table, and its sampling end extends downward out of the mobile operating table, and its sample output end extends upward into the sample processing area (2). The sample collection area (1) extends to the middle of the mobile operating table. The cleaning system and the waste liquid collection system are arranged on the other side of the sample detection area (3) away from the side of the mobile operating table, and are arranged in the middle of the mobile operating table.

7. The mobile fully automatic online sewage prohibited substance detection device according to claim 6 is characterized in that: The sampling system comprises a plurality of groups of sampling units, which are arranged in a plurality of rows in a sample collection area (1) and supported by a shock absorbing device.

8. The mobile fully automatic online sewage prohibited substance detection device according to any one of claims 2 to 5, characterized in that: The pretreatment system is an online solid phase extraction device, which specifically includes a support frame, a tray, a movable needle seat module, a sample receiving module, a standard sample addition module, a vortex mixing module, a needle cleaning module and a solid phase extraction module. The tray is arranged on the lower side of the support frame, supporting the standard sample addition module, the needle cleaning module, the sample receiving module and the vortex mixing module. The movable needle seat module is installed on the support frame and has two horizontal and vertical moving dimensions. The sample is initially input into the sample receiving module through the movable needle seat module, and finally output to the sample detection system through the solid phase extraction module.

9. The mobile fully automatic online sewage prohibited substance detection device according to claim 8 is characterized in that: After being processed by an online solid phase extraction device in a sample processing area (2), the sample enters a sample detection area (3) through an upper partition. The sample detection system comprises a chromatographic separation device and a mass spectrometer. The chromatographic separation device is arranged on one side of the sample detection area (3) close to the upper partition. The data analysis system is arranged on the other side of the sample detection area (3) away from the upper partition. The mass spectrometer is arranged between the chromatographic separation device and the data analysis system. After the sample passes through the chromatographic separation device and the mass spectrometer in sequence, the chromatographic separation device and the mass spectrometer input the detection data into the data analysis system.

10. The mobile fully automatic online sewage prohibited substance detection device according to claim 9 is characterized in that: The chromatographic separation device is a high performance liquid chromatograph, the mass spectrometer is a triple quadrupole mass spectrometer, and the consumable source is an integrated nitrogen generator, the nitrogen generated by which flows upward from the gas supply area (4) into the sample detection area (3) and forms an input gas source for the triple quadrupole mass spectrometer.

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