Portable atmosphere preconcentrator

Abstract

The utility model discloses a portable atmosphere preconcentrator in the technical field of atmosphere detection, which comprises a shell, an air suction pump is fixedly arranged at the left end in the shell, a first air inlet pipe is fixedly arranged on the left side of the air suction pump, a plurality of air inlet holes are arranged on the left side of the shell, and the air inlet holes are arranged on the left side of the first air inlet pipe. Dependence on traditional sampling equipment and liquid nitrogen is removed through optimization design, the electrical refrigeration technology is adopted, the integration level of the instrument is improved, meanwhile, the temperature is accurately controlled to be + / -1 DEG C, sample gas does not need to be transferred through an intermediate container, and the sampling efficiency is improved. On one hand, the effects of reducing the sampling analysis cost, being convenient to carry to the site for real-time sample gas analysis and not needing a tedious manual sampling process are achieved, on the other hand, the purposes of improving the sample trapping stability and accuracy, reducing the sample loss and further improving the detection accuracy are achieved, and an efficient and reliable technical means is provided for atmospheric environment detection.

Description

Technical Field

[0001] The utility model relates to the technical field of atmosphere detection, in particular to a portable atmosphere pre-concentrator. Background Art

[0002] In recent years, my country's industrial development has been rapid, and the emission of industrial waste gas has led to an annual increase in the concentrations of atmospheric pollutants such as volatile organic compounds and sulfides. These compounds are not only major contributors to atmospheric environmental problems but also have certain impacts on human production and daily life. Therefore, understanding the concentration levels and changing trends of atmospheric pollutants is imperative. With the advancement of science and technology, the technology used to detect industrial waste gas pollutants has also evolved. Initially relying on simple adsorbents for adsorption, it has gradually evolved into today's atmospheric pre-concentration devices. Currently, most pre-concentration devices on the market use liquid nitrogen refrigeration or electric refrigeration technology. They remove water and impurities from samples through multi-stage cold traps, and enrich target compounds. Finally, they are analyzed using gas chromatography-mass spectrometry to complete atmospheric environmental monitoring. Existing refrigeration methods for atmospheric pre-concentration devices have certain drawbacks and are relatively large, requiring on-site sampling and transport back to the laboratory for analysis, making the monitoring process cumbersome. This technology primarily improves on the existing refrigeration technology by optimizing it with electric refrigeration, improving instrument monitoring accuracy. It also reduces the instrument's size and allows for portable transportation, eliminating the tedious initial sampling process and making it more convenient for users.

[0003] The existing patent publication number is CN217784472U, which discloses a pipeline connection device and an atmospheric pre-concentrator, including a connector body, one end of which is interconnected with the connecting pipe of the equipment, and the other end of the connector body is interconnected with the external pipe; a first locking member is connected to one end of the connector body close to the connecting pipe; a first sealing member is sleeved on the connecting pipe, and the first sealing member can be pressed between the first locking member and the connector body after the first locking member is connected to the connector body; a limit baffle is movably connected to the equipment, and the limit baffle can be detachably connected to the connector body after it can be moved to a locked position; so as to solve the technical problems in the prior art that the connector body and the connecting pipe are easily detached, thereby reducing the stability of transmission between pipes; and the poor sealing between the connector body and the connecting pipe leads to gas leakage between pipes during transmission.

[0004] Existing pipeline connection devices and atmospheric pre-concentrators have some shortcomings. First, they are not portable enough. The complex structure and multiple components make the entire device difficult to carry and move. Second, the detection is not comprehensive enough. Although it has certain advantages in pipeline connection, the detection function of atmospheric pre-concentration may be relatively simple, and it cannot perform comprehensive detection of various components in the atmosphere like some more professional atmospheric pre-concentrators. Finally, the efficiency is not high enough. Due to the relatively complex structure, there may be some obstacles in the gas transmission and processing process, resulting in relatively low processing efficiency. To this end, we propose a portable atmospheric pre-concentrator to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present invention is to provide a portable atmospheric pre-concentrator that can address some of the shortcomings of existing pipeline connection devices and atmospheric pre-concentrators. First, it is not portable enough. The complex structure and multiple components make the entire device difficult to carry and move. Secondly, the detection is not comprehensive enough. Although it has certain advantages in pipeline connection, its atmospheric pre-concentration detection function may be relatively simple, and it cannot perform comprehensive detection of various components in the atmosphere like some more professional atmospheric pre-concentrators. Finally, the efficiency is not high enough. Due to the relatively complex structure, there may be some obstacles in the gas transmission and processing process, resulting in relatively low processing efficiency.

[0007] In order to solve the above technical problems, the utility model provides a portable atmospheric pre-concentrator, which adopts the following technical solution: it includes a shell, an air suction pump is fastened to the left end of the inside of the shell, a first air inlet pipe is fastened to the left of the air suction pump, a plurality of air inlet holes are opened on the left side of the shell, the air inlet holes are located to the left of the first air inlet pipe, a second air inlet pipe is fastened to the rear of the air suction pump, a three-way valve is fastened to the rear of the first air inlet pipe, an air outlet pipe is fastened to the left of the three-way valve, a third air inlet pipe is fastened to the right of the three-way valve, and a water removal trap is fastened to the right of the third air inlet pipe.

[0008] Optionally, a fourth air inlet pipe is fastened and installed on the right side of the dewatering trap, a dehydration pipe is fastened and installed in front of the dewatering trap, and the dehydration pipe is connected to the dewatering trap through the fourth air inlet pipe.

[0009] Optionally, a fifth air inlet pipe is fastened and installed on the left side of the dehydration pipe, and a dehydrogenation pipe is fastened and installed in front of the dehydration pipe, and the dehydrogenation pipe is connected to the dehydration pipe through the fifth air inlet pipe.

[0010] Optionally, a sixth air intake pipe is fastened and installed just to the right of the dehydrogenation pipe, a deoxygenation pipe is fastened and installed just in front of the dehydrogenation pipe, and the deoxygenation pipe is connected to the dehydrogenation pipe through the sixth air intake pipe.

[0011] Optionally, a seventh air inlet pipe is fastened to the left of the deoxygenation pipe, and a mass spectrometer is fastened to the right of the dehydration pipe, dehydrocarbon removal pipe and deoxygenation pipe, and the mass spectrometer is connected to the deoxygenation pipe through the seventh air inlet pipe.

[0012] Optionally, a first fixing plate and a second fixing plate are fastened to the dewatering trap, the dehydration pipe, the hydrocarbon removal pipe, and the deoxygenation pipe, and the first fixing plate is located directly to the left of the second fixing plate.

[0013] Optionally, a handle is fastened to the top of the shell, a data display screen is fastened to the rear of the shell, a plurality of control knobs are fastened to the left of the data display screen, and a plurality of control buttons are fastened to the bottom of the data display screen.

[0014] In summary, the utility model includes at least one of the following beneficial effects: 1. By optimizing the design, it eliminates the dependence on traditional sampling equipment and liquid nitrogen, adopts electric refrigeration technology and improves the integration of the instrument, and accurately controls the temperature to ±1 degree Celsius without the need for an intermediate container to transfer the sample gas. On the one hand, it achieves the effect of reducing the cost of sampling and analysis, facilitating carrying to the site for real-time sample gas analysis, and eliminating the need for cumbersome manual sampling processes. On the other hand, it achieves the purpose of improving the stability and accuracy of sample capture, reducing sample loss and thus improving detection accuracy, providing an efficient and reliable technical means for atmospheric environment detection.

[0015] 2. By installing an air suction pump, air inlet pipe, three-way valve, water removal trap, dehydration pipe, dehydrogenation pipe, deoxygenation pipe, mass spectrometer and other components inside the shell, and configuring a fixing plate to fix key components, and installing a handle on the top of the shell and a data display screen and control knobs and buttons on the rear, efficient intake, multiple processing and precise analysis of the atmosphere are achieved, ensuring the accurate and stable position of each component, convenient carrying and operation, and achieving the purpose of improving the performance, reliability, portability and ease of use of the atmospheric pre-concentrator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 4 It is a schematic diagram of an overall sectional top view of the present invention.

[0021] Explanation of the accompanying symbols: 1. outer shell; 2. suction pump; 3. first air inlet pipe; 4. air inlet hole; 5. second air inlet pipe; 6. three-way valve; 7. air outlet pipe; 8. third air inlet pipe; 9. water removal trap; 10. fourth air inlet pipe; 11. dehydration pipe; 12. fifth air inlet pipe; 13. dehydrogenation pipe; 14. sixth air inlet pipe; 15. deoxygenation pipe; 16. seventh air inlet pipe; 17. mass spectrometer; 18. first fixing plate; 19. second fixing plate; 20. handle; 21. data display screen; 22. control knob; 23. control button. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 The utility model is described in further detail.

[0023] Example 1, refer to Figure 1-4 In order to solve some shortcomings of the existing pipeline connection device and atmospheric pre-concentrator in this embodiment. First, it is not portable enough. The complex structure and multiple components make the whole device difficult to carry and move. Secondly, the detection is not comprehensive enough. Although it has certain advantages in pipeline connection, the detection function of atmospheric pre-concentration may be relatively single, and it cannot perform comprehensive detection of various components in the atmosphere like some more professional atmospheric pre-concentrators. Finally, the efficiency is not high enough. Due to the complex structure, there may be some obstacles in the gas transmission and processing process, resulting in relatively low processing efficiency. The utility model discloses a portable atmospheric pre-concentrator,

[0024] The invention comprises a housing (1), an air pump (2) is fixedly installed on the left end of the interior of the housing (1), a first air inlet pipe (3) is fixedly installed on the left side of the air pump (2), a plurality of air inlet holes (4) are opened on the left side of the housing (1), the air inlet holes (4) are located on the left side of the first air inlet pipe (3), a second air inlet pipe (5) is fixedly installed on the rear side of the air pump (2), a three-way valve (6) is fixedly installed on the rear side of the first air inlet pipe (3), an air outlet pipe (7) is fixedly installed on the left side of the three-way valve (6), and a three-way valve (6) is fixedly installed on the right side of the three-way valve (6). A third air inlet pipe (8) is provided, and a dewatering trap (9) is fixedly installed on the right side of the third air inlet pipe (8). By installing an air suction pump (2) at the left end inside the shell (1), and coordinating the first air inlet pipe (3), the air inlet hole (4), the second air inlet pipe (5), the three-way valve (6), the air outlet pipe (7), the third air inlet pipe (8) and the dewatering trap (9) and other components, efficient air suction and preliminary dewatering functions are achieved, providing a good basis for subsequent accurate analysis, and achieving the purpose of improving the performance and reliability of the atmospheric pre-concentrator.

[0025] A fourth air inlet pipe (10) is fixedly installed on the right side of the dewatering trap (9), and a dehydration pipe (11) is fixedly installed in front of the dewatering trap (9). The dehydration pipe (11) is connected to the dewatering trap (9) through the fourth air inlet pipe (10). By installing the fourth air inlet pipe (10) on the right side of the dewatering trap (9) and installing the dehydration pipe (11) in front and connecting it to the dewatering trap (9) through the fourth air inlet pipe (10), the dehydration effect is further enhanced, ensuring that the gas after preliminary treatment by the dewatering trap (9) can be more finely dehydrated in the dehydration pipe (11), thereby achieving the purpose of improving the dryness of the gas and providing a purer sample gas for subsequent analysis.

[0026] A fifth air inlet pipe (12) is fastened and installed on the left side of the dehydration pipe (11), and a dehydrogenation pipe (13) is fastened and installed in front of the dehydration pipe (11). The dehydrogenation pipe (13) is connected to the dehydration pipe (11) through the fifth air inlet pipe (12). By installing the fifth air inlet pipe (12) on the left side of the dehydration pipe (11) and installing the dehydrogenation pipe (13) in front of the dehydration pipe (11) and connecting it to the dehydration pipe (11) through the fifth air inlet pipe (12), dehydrogenation treatment is achieved for the gas after dehydration treatment, and hydrocarbon substances in the gas are effectively removed, thereby providing purer sample gas for subsequent accurate analysis, thereby achieving the purpose of improving the analysis accuracy of the atmospheric pre-concentrator.

[0027] A sixth air inlet pipe (14) is fastened and installed on the right side of the dehydrogenation pipe (13), and a deoxidation pipe (15) is fastened and installed in front of the dehydrogenation pipe (13). The deoxidation pipe (15) is connected to the dehydrogenation pipe (13) through the sixth air inlet pipe (14). By installing the sixth air inlet pipe (14) on the right side of the dehydrogenation pipe (13) and installing the deoxidation pipe (15) in front of the dehydrogenation pipe (13) and connecting it to the dehydrogenation pipe (13) through the sixth air inlet pipe (14), deoxidation treatment of the dehydrogenated gas is achieved, impurities such as oxygen in the gas are removed, and a purer sample gas environment is provided for subsequent accurate analysis, thereby achieving the purpose of improving the detection accuracy and reliability of the atmospheric pre-concentrator.

[0028] A seventh air inlet pipe (16) is fastened to the left of the deoxidation pipe (15), and a mass spectrometer (17) is fastened to the right of the dehydration pipe (11), the dehydrogenation pipe (13), and the deoxidation pipe (15). The mass spectrometer (17) is connected to the deoxidation pipe (15) through the seventh air inlet pipe (16). By installing the seventh air inlet pipe (16) to the left of the deoxidation pipe (15), installing the mass spectrometer (17) to the right of the dehydration pipe (11), the dehydrogenation pipe (13), and the deoxidation pipe (15) and connecting it to the deoxidation pipe (15) through the seventh air inlet pipe (16), accurate analysis of the pure gas after multiple treatments is achieved, and various components in the atmosphere can be accurately detected, thereby achieving the purpose of improving the analytical performance and accuracy of the atmospheric pre-concentrator.

[0029] A first fixing plate (18) and a second fixing plate (19) are fastened and installed on the dewatering well (9), the dehydration pipe (11), the dehydrogenation pipe (13), and the deoxygenation pipe (15), and the first fixing plate (18) is located directly to the left of the second fixing plate (19). By fastening and installing the first fixing plate (18) and the second fixing plate (19) on the dewatering well (9), the dehydration pipe (11), the dehydrogenation pipe (13), and the deoxygenation pipe (15), and making the first fixing plate (18) located directly to the left of the second fixing plate (19), these key components are stably fixed, ensuring that the positions of the components are accurate and do not deviate during the operation of the instrument, thereby achieving the purpose of improving the operational stability and reliability of the atmospheric pre-concentrator.

[0030] A handle (20) is fastened and installed just above the housing (1), a data display screen (21) is fastened and installed just behind the housing (1), a plurality of control knobs (22) are fastened and installed just to the left of the data display screen (21), and a plurality of control buttons (23) are fastened and installed just below the data display screen (21). By installing the handle (20) just above the housing (1), the carrying and movement of the instrument are facilitated, and the portability of the instrument is improved; by installing the data display screen (21) just behind the housing (1), installing the plurality of control knobs (22) just to the left, and installing the plurality of control buttons (23) just below, the intuitive display of the operating status of the instrument and convenient operation are achieved, thereby achieving the purpose of improving the convenience of use and human-computer interaction of the atmospheric pre-concentrator.

[0031] The specific working principle is: through optimized design, the dependence on traditional sampling equipment and liquid nitrogen is eliminated, electric refrigeration technology is adopted and the integration of the instrument is improved. At the same time, the temperature is accurately controlled to ±1 degrees Celsius and no intermediate container is required to transfer the sample gas. On the one hand, it achieves the effect of reducing the cost of sampling and analysis, facilitating carrying to the site for real-time sample gas analysis, and eliminating the need for cumbersome manual sampling processes. On the other hand, it achieves the purpose of improving the stability and accuracy of sample capture, reducing sample loss and thus improving detection accuracy, providing an efficient and reliable technical means for atmospheric environment detection. By installing an air suction pump (2), an air inlet pipe, a three-way valve (6), a water removal trap (9), a dehydration pipe (11), a dehydrogenation pipe (13), a deoxygenation pipe (15), a mass spectrometer (17) and other components inside a shell (1), and configuring a fixing plate to fix key components, and simultaneously installing a handle (20) above the shell (1), and a data display screen (21) and a control knob (22) and buttons at the rear, efficient suction, multiple processing and precise analysis of the atmosphere are achieved, ensuring that the positions of various components are accurate and stable, convenient to carry and operate, and achieving the purpose of improving the performance, reliability, portability and ease of use of the atmospheric pre-concentrator.

[0032] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable atmospheric pre-concentrator, comprising a housing (1), characterized in that: An air suction pump (2) is fastened to the left end of the interior of the housing (1), a first air intake pipe (3) is fastened to the left of the air suction pump (2), a plurality of air intake holes (4) are provided on the left of the housing (1), the air intake holes (4) are located on the left of the first air intake pipe (3), a second air intake pipe (5) is fastened to the rear of the air suction pump (2), a three-way valve (6) is fastened to the rear of the first air intake pipe (3), an air outlet pipe (7) is fastened to the left of the three-way valve (6), a third air intake pipe (8) is fastened to the right of the three-way valve (6), and a water trap (9) is fastened to the right of the third air intake pipe (8).

2. A portable atmospheric pre-concentrator according to claim 1, characterized in that: A fourth air inlet pipe (10) is fastened to the right of the dewatering trap (9), a dehydration pipe (11) is fastened to the front of the dewatering trap (9), and the dehydration pipe (11) is connected to the dewatering trap (9) through the fourth air inlet pipe (10).

3. The portable atmospheric pre-concentrator according to claim 2, characterized in that: A fifth air inlet pipe (12) is fastened to the left of the dehydration pipe (11), and a hydrocarbon removal pipe (13) is fastened to the front of the dehydration pipe (11). The hydrocarbon removal pipe (13) is connected to the dehydration pipe (11) through the fifth air inlet pipe (12).

4. The portable atmospheric pre-concentrator according to claim 3, characterized in that: A sixth air inlet pipe (14) is fastened to the right of the dehydrogenation pipe (13), and a deoxidation pipe (15) is fastened to the front of the dehydrogenation pipe (13). The deoxidation pipe (15) is connected to the dehydrogenation pipe (13) through the sixth air inlet pipe (14).

5. The portable atmospheric pre-concentrator according to claim 4, characterized in that: A seventh air inlet pipe (16) is fastened to the left of the deoxidation pipe (15), and a mass spectrometer (17) is fastened to the right of the dehydration pipe (11), the dehydrogenation pipe (13), and the deoxidation pipe (15). The mass spectrometer (17) is connected to the deoxidation pipe (15) via the seventh air inlet pipe (16).

6. The portable atmospheric pre-concentrator according to claim 1, characterized in that: A first fixing plate (18) and a second fixing plate (19) are fastened to the dewatering trap (9), the dehydration pipe (11), the hydrocarbon removal pipe (13), and the deoxidation pipe (15). The first fixing plate (18) is located directly to the left of the second fixing plate (19).

7. The portable atmospheric pre-concentrator according to claim 1, characterized in that: A handle (20) is fastened and installed directly above the housing (1), a data display screen (21) is fastened and installed directly behind the housing (1), a plurality of control knobs (22) are fastened and installed directly to the left of the data display screen (21), and a plurality of control buttons (23) are fastened and installed directly below the data display screen (21).

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