CN214150548U

CN214150548U - Double-channel portable organic pollutant detector

Info

Publication number: CN214150548U
Application number: CN202022568310.7U
Authority: CN
Inventors: 黄俊彪; 杨鹏月
Original assignee: Zhongke Soil Environmental Technology Jiangsu Co ltd
Current assignee: Zhongke Soil Environmental Technology Jiangsu Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-09-07
Anticipated expiration: 2030-11-09

Abstract

The utility model provides a portable organic pollutant detector of binary channels, include: the device comprises a processing detection device, a double-channel sample introduction device and a sample chamber; the binary channels sampling device includes: the gas-phase volatile organic pollutant guide pipe and the liquid-phase organic pollutant pretreatment chamber are sequentially provided with an extraction chamber, a drying chamber and a separation chamber; the processing detection device includes: an ion chamber and a mass analyzer. The situation of organic pollution in soil/sediment can be rapidly detected qualitatively and semi-quantitatively on site; sample introduction detection is accelerated, detection efficiency is improved, and accuracy of detection data is guaranteed; the portable quick detection device is convenient to carry and transport, and is suitable for quick detection requirements of a plurality of environment media and detection tasks; and the cost is saved.

Description

Double-channel portable organic pollutant detector

Technical Field

The utility model belongs to the technical field of organic pollutant detects, especially, relate to a portable organic pollutant detector of binary channels.

Background

With the increasing development of ecological environment project site investigation, whether the spatial distribution of pollutants in the site can be found quickly and accurately can be achieved, the sampling and detection cost is greatly saved, and the method becomes an important limiting factor for the development of the whole investigation industry. Under the general condition, the rapid striding type development of the detection instrument and equipment can improve the detection efficiency, save the cost and promote the development of the whole site investigation.

The existing photoion gas detector has defects in on-site monitoring of non-volatile organic pollutants, laboratory detection equipment such as a gas chromatography-mass spectrometer and the like has no portability, is inconvenient to transport, cannot detect the organic pollutants on site in time, and is difficult to realize on-site quantification due to variable and unstable environmental conditions, difficult guarantee of instrument stability during transportation and the like.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a portable organic pollutant detector of binary channels. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

The utility model adopts the following technical scheme:

in some alternative embodiments, there is provided a dual channel portable organic contaminant detector comprising: the device comprises a processing detection device, a double-channel sample introduction device and a sample chamber;

the sample chamber includes: the conveying belt is arranged in the first shell, a sample outlet is formed in the wall of the first shell, and a sealing plugboard for sealing the sample outlet is arranged on the first shell;

the binary channels sampling device includes: the device comprises a second shell, a gas-phase volatile organic pollutant conduit and a liquid-phase organic pollutant pretreatment chamber, wherein the gas-phase volatile organic pollutant conduit and the liquid-phase organic pollutant pretreatment chamber are arranged in the second shell, an extraction chamber, a drying chamber and a separation chamber are sequentially arranged in the liquid-phase organic pollutant pretreatment chamber, a gas-phase inlet is formed in the second shell, a suction fan is arranged in the gas-phase inlet, the gas-phase volatile organic pollutant conduit is communicated with the gas-phase inlet, replacement ports are formed in the chamber walls of the extraction chamber, the drying chamber and the separation chamber, which are mutually connected, and a sealing door is arranged in each replacement port;

the processing detection device includes: the ion source comprises a third shell, an ion chamber and a mass analyzer, wherein the ion chamber and the mass analyzer are arranged in the third shell, an ultraviolet lamp is arranged at the top of the ion chamber, an electrode and an ion source are arranged on the wall of the ion chamber, and a through hole communicated with the gas-phase volatile organic pollutant guide pipe is formed in the wall of the ion chamber.

In some optional embodiments, slide ways are arranged on two sides of the sample outlet, and slide bars matched with the slide ways are arranged at two ends of the sealing plug board.

In some optional embodiments, the first housing is further provided with T-shaped sliders on two sides of the sample outlet, and the second housing is provided with a T-shaped chute on one side facing the sample chamber.

In some optional embodiments, a positioning rod is disposed at the bottom of the second casing, and a positioning groove adapted to the positioning rod is disposed at the top of the third casing.

In some optional embodiments, the chamber walls of the extraction chamber, the drying chamber, the separation chamber and the ion chamber are provided with butt-joints; set up the manipulator subassembly in the interface, the manipulator subassembly includes: bracelet and gloves, the opening cover of gloves is in the front end of bracelet, the external screw thread is seted up to the tail end of bracelet, the internal thread is seted up to the interface.

In some optional embodiments, the manipulator assembly further comprises: the semi-ring comprises a first semi-ring and a second semi-ring, wherein a hanging protrusion is arranged on the first semi-ring, elastic bands are arranged at two ends of the second semi-ring, and the tail ends of the elastic bands are hung on the hanging protrusion.

The utility model discloses the beneficial effect who brings:

1. the double-channel portable organic pollutant detector of the utility model realizes the situation of on-site qualitative and semi-quantitative rapid detection of organic pollution in soil/sediment, supplements the defect of on-site rapid detection of the photoion gas detector on monitoring non-volatile organic pollutants, and simultaneously compensates the non-portability of laboratory detection equipment;

2. the sample chamber realizes the integration of a gas phase chamber and a liquid phase chamber, can ensure sample introduction once, and simultaneously samples and analyzes synchronously, thereby accelerating sample introduction detection, improving detection efficiency and ensuring the accuracy of detection data;

3. the system which has less influence on detection stability and influences on detection efficiency is modularized, and the treatment detection device, the double-channel sample introduction device and the sample chamber are independent and detachable, so that the system is convenient to carry and transport, and is suitable for quick detection requirements of a plurality of environment media and detection tasks;

4. the disassembly and assembly mode is simple and quick, and the operation and detection are convenient;

5. the method has the advantages of achieving one-time sampling and multi-data detection, integrally mastering the condition of pollutants and saving cost.

Drawings

Fig. 1 is a schematic view of the external structure of the assembled electric appliance;

FIG. 2 is a schematic diagram of the external explosion of the present invention;

fig. 3 is a schematic view of the internal structure of the assembled electric appliance;

fig. 4 is a schematic structural diagram of the manipulator assembly of the present invention.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others.

As shown in fig. 1-3, in some illustrative embodiments, there is provided a dual channel portable organic contaminant detector comprising: the device comprises a processing detection device 1, a double-channel sample introduction device 2, a sample chamber 3, a butt joint 4 and an operating hand assembly.

The sample chamber 3 includes: the device comprises a first shell 301, a conveyer belt 302, a sealing insert plate 303, a sample outlet 304, a slide way 305, a slide bar 306 and a T-shaped slide block 307.

Conveyer belt 302 sets up in first casing 301, offers out appearance mouth 304 on the conch wall of first casing 301, and the driving roll of conveyer belt 302 connects the rocking arm, and the rocking arm is located first casing 301 outsidely, and when soil sample need get into next operation flow, hand rocking arm drive conveyer belt 302 operation can.

The first shell 301 is provided with a sealing plug board 303 for closing the sample outlet 304, the two sides of the sample outlet 304 are provided with slide ways 305, the two ends of the sealing plug board 303 are provided with slide bars 306 matched with the slide ways 305, and the slide bars 306 are embedded in the slide ways 305, so that the sealing plug board 303 can move up and down along the slide ways 305, and the sample outlet 304 is opened and closed.

The field sampler collects the same amount of soil samples, the volume and the mass of the soil samples are fixed by the sampler, the soil samples are placed on the conveying belt 302, and when the sample outlet 304 is opened, the samples in the sample chamber 3 can be sent into the double-channel sample introduction device 2. The utility model discloses a sample room 3 is integrated with gas phase room and liquid phase room, can ensure to advance kind once, and the synchronous analysis of sampling simultaneously. The sample introduction amount and the extraction time of the sample chamber 3 are consistent, and the samples are introduced respectively.

The first housing 301 is further provided with T-shaped sliders 307 at two sides of the sample outlet 304, and the second housing 201 of the dual-channel sample injection device 2 is provided with a T-shaped chute 202 at a side facing the sample chamber 3. During on-site assembly, the T-shaped sliding block 307 on one side of the sample chamber 3 is embedded in the T-shaped sliding groove 202, so that the double-channel sample introduction device 2 and the sample chamber 3 can be assembled together, and the installation mode is simple and rapid. Therefore, the sample chamber can be disassembled, the detection end can be modularized when the speed is high, and the detection efficiency is improved.

The two-channel sampling device 2 comprises: a second shell 201, a T-shaped chute 202, a gas phase volatile organic pollutant conduit 203, an organic pollutant pretreatment chamber 204, a gas phase inlet 205, an extraction chamber 206, a drying chamber 207, a separation chamber 208, a pumping fan 209, a closing door 210 and a positioning rod 211.

The second housing 201 is provided with a gas inlet 205. The organic pollutant pretreatment chamber 204 is internally provided with an extraction chamber 206, a drying chamber 207 and a separation chamber 208 in sequence, the extraction chamber 206, the drying chamber 207 and the separation chamber 208 are arranged according to the treatment process, the second shell 201 is provided with a soil inlet communicated with the extraction chamber 206, and after the sample chamber 3 is arranged on the double-channel sampling device 2, the sealing plugboard 303 is opened to communicate the soil inlet and the gas phase inlet 205 with the sample outlet 304.

A gas phase voc organic contaminant conduit 203 and an organic contaminant pretreatment chamber 204 are disposed within second housing 201, and gas phase voc organic contaminant conduit 203 is located above organic contaminant pretreatment chamber 204 and communicates with gas phase inlet 205. The gas phase inlet 205 is provided with a pumping fan 209, and when the sample outlet 304 is opened, the pumping fan 209 operates to pump the gas phase voc to the gas phase voc pipe 203 for the next detection process.

The wall of the extraction chamber 206, the wall of the drying chamber 207 and the wall of the separation chamber 208 connected to each other are provided with a replacement port, that is, the wall of the extraction chamber 206 connected to the drying chamber 207 is provided with a replacement port, and the wall of the drying chamber 207 connected to the wall of the separation chamber 208 is provided with a replacement port. And the closing door 210 is arranged in the replacement port, the closing door 210 is specifically an electromagnetic valve, the closing door 210 is opened and closed through electric control, after one process operation is completed, the corresponding closing door 210 is opened, and the sample is sent into the next operation chamber, so that the pollution of the external environment is avoided, the detection accuracy is ensured, and the operation is convenient.

The double-channel sample introduction device 2 enables gas phase and liquid phase to enter different processing systems respectively. Volatile organic pollutants in soil volatilize in the sample room after a certain period of time, enter through the binary channels sampling device 2 and handle detection device 1, and gaseous phase volatile organic pollutants directly gets into detecting system after the preliminary treatment promptly. The liquid phase organic pollutants are extracted by a liquid phase extracting agent in an extraction chamber 206 for a certain time, then pass through a drying chamber 207, the extracted substances to be detected are dried and impurity removed in the drying chamber 207, and finally chromatographic column separation is carried out in a separation chamber 208.

The bottom of second casing 201 sets up locating lever 211, and the top of third casing 301 sets up the constant head tank 302 with the adaptation of locating lever 211. During field installation, the second shell 201 is installed on the upper surface of the third shell 301, namely the dual-channel sampling device 2 is inserted into the processing and detecting device 1, and the positioning rod 211 is embedded into the positioning groove 302 to realize positioning installation. After the operation is finished, the sample chamber 3 is arranged on the double-channel sample introduction device 2.

The processing detection apparatus 1 includes: a third housing 301, a positioning slot 302, an ion chamber 303, a mass analyzer 304, an ultraviolet lamp 305, an electrode 306, and an ion source 307.

An ion chamber 303, a mass analyzer 304, and a processor required for detection, a power supply for supplying power, and the like are provided in the third housing 301. An ultraviolet lamp 305 is arranged on the top of the ion chamber 303, an electrode 306 and an ion source 307 are arranged on the wall of the ion chamber 303, and a through hole communicated with the gas phase volatile organic pollutant conduit 203 and a through hole communicated with the separation chamber 208 are arranged on the wall of the ion chamber 303. After the liquid phase non-volatile organic pollutants are pretreated and separated by the double-channel sampling device 2, the liquid phase non-volatile organic pollutants are sequentially ionized under the bombardment of an ion source to generate ions with different mass-to-charge ratios and positive charges, and the ions are accelerated by an accelerating electric field to form ion beams and enter a mass analyzer. In the mass analyzer, the electric field and the magnetic field are used to generate opposite velocity dispersion, and the two are respectively focused to obtain a mass spectrogram, so that the mass spectrogram is quantitatively detected. The gas phase volatile organic compound is provided with a positive electrode and a negative electrode in an ion chamber to form an electric field, gas is ionized under the irradiation of an ultraviolet lamp to form positive ions and negative ions, current is formed between the electrodes, and the positive ions and the negative ions are captured by a detector and converted into electric signals to enter a signal processing link. The sensor converts the chemical signal into an electric signal and enters a data processing system. And performing automatic matching according to the existing database to obtain qualitative and quantitative information of the target substance.

The utility model discloses can carry out the modularization to the system that detects the less and influence detection efficiency of stability influence for advance kind and detect. Such as the split transportation of a vacuum-pumping system and the modularization of a sample introduction system and a separation system. Except for the sample room of soil and sediment, the front end of the sample can be properly improved, the detection front ends of water samples and air samples are increased, the detection range of quick detection is expanded, and the method is suitable for the quick detection requirements of a plurality of environment media and detection tasks. The method has the advantages of achieving one-time sampling and multi-data detection, integrally mastering the condition of pollutants and saving cost.

The utility model overcomes environmental condition is changeable unstable, and transportation instrument stability is hardly guaranteed etc. moreover, accomplishes the still difficult problem of scene ration. The semi-quantitative detection of the rapid detection instrument greatly increases the detection time, improves the later period, needs to realize that the detection result is as close as possible to the laboratory detection result, and directly judges the pollution condition on site.

As shown in fig. 4, the chamber walls of the extraction chamber 206, the drying chamber 207, the separation chamber 208, and the ion chamber 303 are all provided with a docking interface 4, a manipulator assembly is arranged in the docking interface 4, the docking interface 4 is used for connecting the manipulator assembly, and a person outside the manipulator assembly can operate the sample.

The manipulator assembly comprises: bracelet 501, glove 502, first half ring 503, second half ring 504, articulate arch 505, elastic band 506.

The external screw thread is seted up at the tail end of the front end bracelet 501 of bracelet 501 in the opening cover of gloves 502, sets up the internal thread to interface 4. The manipulator assembly 5 can be removed at any time, facilitating the replacement of the glove 502. The first half ring 503 is provided with a hanging protrusion 505, the two ends of the second half ring 504 are provided with an elastic band 506, and the tail end of the elastic band 506 is hung on the hanging protrusion 505, so that the opening part of the glove 502 is fixed on the bracelet 501, and the glove 502 is prevented from falling off.

The above embodiment is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above embodiment, and any other changes, modifications, replacements, combinations, simplifications, equivalent replacement modes, which are not departed from the spirit and principle of the present invention, should be included in the protection scope of the present invention.

Claims

1. A dual channel portable organic contaminant detector, comprising: the device comprises a processing detection device, a double-channel sample introduction device and a sample chamber;

2. The dual-channel portable organic pollutant detector according to claim 1, wherein slide ways are arranged on two sides of the sample outlet, and slide bars matched with the slide ways are arranged on two ends of the sealing plug board.

3. The dual channel portable organic contaminant detector according to claim 2, wherein the first housing further comprises T-shaped sliders disposed on both sides of the sample outlet, and the second housing further comprises a T-shaped chute disposed on a side facing the sample chamber.

4. The dual channel portable organic contaminant detector according to claim 3, wherein a positioning rod is disposed at a bottom of the second housing, and a positioning groove adapted to the positioning rod is disposed at a top of the third housing.

5. The dual channel portable organic contaminant detector according to claim 4, wherein the walls of the extraction chamber, the drying chamber, the separation chamber, and the ion chamber are provided with docking ports; set up the manipulator subassembly in the interface, the manipulator subassembly includes: bracelet and gloves, the opening cover of gloves is in the front end of bracelet, the external screw thread is seted up to the tail end of bracelet, the internal thread is seted up to the interface.

6. The dual channel portable organic contaminant detector according to claim 5, wherein the manipulator assembly further comprises: the semi-ring comprises a first semi-ring and a second semi-ring, wherein a hanging protrusion is arranged on the first semi-ring, elastic bands are arranged at two ends of the second semi-ring, and the tail ends of the elastic bands are hung on the hanging protrusion.