Air gas analysis pretreatment device

Abstract

The utility model discloses an air gas analysis pretreatment device which comprises a drying mechanism, a filtering mechanism and a cooling mechanism. According to the air gas analysis pretreatment device, connecting pipelines are arranged at the two ends of a middle pipeline, a filtering mechanism is arranged between the air inlet end of the middle pipeline and the corresponding connecting pipeline, a drying mechanism is arranged between the air outlet end of the middle pipeline and the connecting pipeline, and a cooling mechanism is arranged on the middle pipeline; the two connecting pipelines and the middle pipeline are matched with the filtering mechanism and the drying mechanism to form a passage, air is filtered through a filtering net plate in the filtering mechanism, and the air passing through the middle pipeline is cooled through cooling fins and circulating water in an isolation hood, so that the drying effect is improved. According to the device, the honeycomb-shaped cylindrical drying agent block in the drying mechanism is used for drying passing air, so that the functions of dust falling, cooling and drying of the air are realized, variables which are not necessary for detection in the air can be effectively reduced, and the influence on subsequent detection is avoided.

Description

Technical Field

[0001] This utility model relates to the field of air gas pretreatment technology, specifically an air gas analysis and pretreatment device. Background Technology

[0002] In the field of industrial gas separation, gas analysis is frequently used. When analyzing gas composition, gas analyzers are often required. However, when analyzing air gases, gas analyzers are prone to errors due to factors such as excessively high or low gas temperatures, high moisture content, or dust in the air. There is a lack of effective pretreatment measures during the collection and analysis of air gases, which directly affects subsequent air detection. Therefore, we propose an air gas analysis pretreatment device. Utility Model Content

[0003] The purpose of this invention is to provide an air gas analysis and pretreatment device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An air gas analysis pretreatment device includes an intermediate pipe with connecting pipes at both ends. Connecting flanges are fixedly connected to the ends of the connecting pipes that are far apart from each other. Mounting holes are circumferentially formed on the connecting flanges. A filtration mechanism is provided between the air inlet end of the intermediate pipe and the corresponding connecting pipe. A drying mechanism is provided between the air outlet end of the intermediate pipe and the connecting pipe. A cooling mechanism is provided on the intermediate pipe, including heat dissipation fins circumferentially fixed to the side wall of the intermediate pipe. An isolation cover is wrapped around the heat dissipation fins and fixedly connected to the outside of the intermediate pipe. An inlet pipe and an outlet pipe are provided on the isolation cover, which are connected to an external circulating water supply device to supply room temperature water. The filtration mechanism includes multiple filter screens disposed therein, and the drying mechanism includes honeycomb-shaped cylindrical desiccant blocks disposed therein.

[0006] As a further embodiment of this utility model: both sides of the isolation cover are symmetrically fixedly connected with connecting frames, and the connecting frames are respectively fixedly connected to the corresponding connecting pipes.

[0007] As a further embodiment of this utility model: both the filtration mechanism and the drying mechanism include an outer sleeve assembly and an inner sleeve assembly. The inner side of the outer sleeve assembly is provided with a placement groove that is adapted to the inner sleeve assembly, and the inner sleeve assembly is placed in the placement groove.

[0008] As a further improvement of this utility model: both ends of the outer casing assembly are provided with clips, and the opposite ends of the connecting pipe and the intermediate pipe are provided with slots. The slots are arranged in a ring shape, and the slots correspond to and fit the clips, with the clips inserted into the slots.

[0009] As a further embodiment of this utility model: the outer casing assembly is composed of two symmetrically arranged semi-circular shells, one side of the semi-circular shells is hinged to each other, and multiple bolts pass through the other side of the semi-circular shells. The ends of the bolts are threaded with nuts, and the semi-circular shells are provided with corresponding stepped grooves for bolt installation.

[0010] As a further improvement of this utility model, the inner sleeve assembly is composed of two identical semi-cylinders.

[0011] As a further embodiment of this utility model: the inner sleeve assembly of the filtration mechanism has multiple first mounting slots evenly spaced, and the filter screen is embedded in the first mounting slot; the inner sleeve assembly of the drying mechanism has a second mounting slot, and the honeycomb cylindrical desiccant block is embedded in the second mounting slot.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses two connecting pipes and an intermediate pipe, along with a filtration mechanism and a drying mechanism, to form a passage. The air is filtered by the filter screen in the filtration mechanism, and the air passing through the intermediate pipe is cooled by the circulating water in the heat dissipation fins and the isolation cover. The air is dried by the honeycomb cylindrical desiccant blocks in the drying mechanism. This achieves the functions of dust reduction, cooling and drying of the air, which can effectively reduce variables in the air that are not necessary for detection and avoid affecting subsequent detection.

[0014] 2. This utility model, through the setting of the connecting frame, makes the two connecting pipes and the middle pipe form a whole, which facilitates the assembly and operation of the filtration mechanism and the drying mechanism.

[0015] 3. In this utility model, the two semi-circular shells are closed and fixed by bolts and nuts to form an outer casing assembly. The two semi-cylinders are combined to form an inner casing assembly. The outer casing assembly can be connected by a clip and a slot. The inner casing assembly can install the filter screen and the honeycomb cylindrical desiccant block through the first mounting slot and the second mounting slot. The inner casing assembly can be installed inside the inner casing assembly through the placement slot, so that the filtration mechanism and the drying mechanism are themselves a combined structure. It can be easily detached from the connecting pipe and the intermediate pipe, thereby facilitating the disassembly and replacement of the filter screen and the honeycomb cylindrical desiccant block and facilitating the maintenance of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an air gas analysis and pretreatment device.

[0017] Figure 2 This is a cross-sectional view of an air gas analysis and pretreatment device.

[0018] Figure 3 This is a three-dimensional diagram of the connecting pipes in an air gas analysis and pretreatment device.

[0019] Figure 4 This is an exploded view of the filtration mechanism in an air gas analysis and pretreatment device.

[0020] Figure 5 This is an exploded view of the drying mechanism in an air gas analysis and pretreatment device.

[0021] In the diagram: 1. Intermediate pipe; 2. Connecting pipe; 3. Connecting flange; 4. Filtering mechanism; 5. Drying mechanism; 6. Cooling mechanism; 7. Heat dissipation fins; 8. Isolation cover; 9. Inlet pipe; 10. Outlet pipe; 11. Filter screen; 12. Honeycomb cylindrical desiccant block; 13. Connecting frame; 14. Outer sleeve assembly; 15. Inner sleeve assembly; 16. Placement slot; 17. Clip; 18. Slot; 19. Semi-circular shell; 20. Bolt; 21. Nut; 22. Semi-cylinder; 23. First mounting slot; 24. Second mounting slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-2In this embodiment of the invention, an air gas analysis pretreatment device includes an intermediate pipe 1, with connecting pipes 2 at both ends of the intermediate pipe 1. Connecting flanges 3 are fixedly connected to the ends of the connecting pipes 2 that are far apart from each other. Mounting holes are provided on the circumference of the connecting flanges 3. The connecting pipe 2 at the inlet end can be connected to a collection device through the connecting flanges 3, and the connecting pipe 2 at the outlet end can be connected to a collection device through the connecting flanges 3. The gas collected by the collection device can be sent for testing, thereby allowing air analysis and detection by the analysis device. A filter is provided between the inlet end of the intermediate pipe 1 and the corresponding connecting pipe 2. Mechanism 4 includes a drying mechanism 5 between the air outlet of the intermediate pipe 1 and the connecting pipe 2. The intermediate pipe 1 is equipped with a cooling mechanism 6, which includes heat dissipation fins 7 that are circumferentially fixed to the side wall of the intermediate pipe 1. The heat dissipation fins 7 are wrapped with an isolation cover 8 that is fixed to the outside of the intermediate pipe 1. The isolation cover 8 is equipped with an inlet pipe 9 and an outlet pipe 10, which are connected to an external circulating water supply device to supply room temperature water. The filtration mechanism 4 includes multiple filter screens 11 disposed therein, and the drying mechanism 5 includes honeycomb cylindrical desiccant blocks 12 disposed therein.

[0024] A passage is formed by two connecting pipes 2 and an intermediate pipe 1, together with the filtration mechanism 4 and the drying mechanism 5. The air is filtered by the filter screen 11 in the filtration mechanism 4, and the air passing through the intermediate pipe 1 is cooled by the circulating water in the heat dissipation fins 7 and the isolation cover 8. The air is dried by the honeycomb cylindrical desiccant block 12 in the drying mechanism 5. This achieves the functions of dust reduction, cooling and drying of the air, which can effectively reduce variables in the air that are not necessary for detection and avoid affecting subsequent detection.

[0025] Please see Figure 3 Both sides of the isolation cover 8 are symmetrically fixedly connected with connecting brackets 13, and the connecting brackets 13 are fixedly connected to the corresponding connecting pipes 2 respectively.

[0026] By setting the connecting bracket 13, the two connecting pipes 2 and the intermediate pipe 1 are integrated into one unit, which facilitates the assembly of the filter mechanism 4 and the drying mechanism 5. It can also maintain the stability of the device installation while the filter mechanism 4 and the drying mechanism 5 are disassembled, thus avoiding the device from being disassembled.

[0027] Please see Figures 4-5 Both the filtration mechanism 4 and the drying mechanism 5 include an outer sleeve assembly 14 and an inner sleeve assembly 15. The inner side of the outer sleeve assembly 14 is provided with a placement groove 16 that is adapted to the inner sleeve assembly 15, and the inner sleeve assembly 15 is disposed in the placement groove 16.

[0028] Please see Figures 3-4Both ends of the outer casing assembly 14 are provided with clips 17, and the opposite ends of the connecting pipe 2 and the intermediate pipe 1 are provided with slots 18. The slots 18 are arranged in a ring shape, and the slots 18 correspond to and fit the clips 17. The clips 17 are inserted into the slots 18.

[0029] Please see Figures 4-5 The outer casing assembly 14 is composed of two symmetrically arranged semi-circular shells 19. One side of the semi-circular shells 19 is hinged to each other, and multiple bolts 20 pass through the other side of the semi-circular shells 19. Nuts 21 are threaded to the ends of the bolts 20. The semi-circular shells 19 are provided with corresponding stepped slots for bolt 20 installation.

[0030] Please see Figures 4-5 The inner sleeve component 15 consists of two identical semi-cylinders 22.

[0031] Please see Figures 4-5 The inner sleeve assembly 15 of the filtration mechanism 4 has multiple first mounting slots 23 evenly spaced, and the filter screen 11 is embedded in the first mounting slot 23. The inner sleeve assembly 15 of the drying mechanism 5 has a second mounting slot 24, and the honeycomb cylindrical desiccant block 12 is embedded in the second mounting slot 24.

[0032] Two semi-circular shells 19 are closed and fixed by bolts 20 and nuts 21 to form an outer sleeve assembly 14. Two semi-cylinders 22 are combined to form an inner sleeve assembly 15. The outer sleeve assembly 14 can be connected by a clip 17 and a slot 18. The inner sleeve assembly 15 can be used to install the filter screen 11 and the honeycomb cylindrical desiccant block 12 through the first mounting slot 23 and the second mounting slot 24. The inner sleeve assembly 15 can be installed inside the inner sleeve assembly 14 through the placement slot 16, so that the filter mechanism 4 and the drying mechanism 5 are themselves a combined structure, and can be easily detached from the connecting pipe 2 and the intermediate pipe 1, thereby facilitating the disassembly and replacement of the filter screen 11 and the honeycomb cylindrical desiccant block 12 and facilitating the maintenance of the device.

[0033] The working principle of this utility model is as follows:

[0034] In use, the collected air enters the filtration mechanism 4 through the connecting pipe 2, where it is filtered and dust-reduced by the filter screen 11. Then, it enters the intermediate pipe 1, where it exchanges heat with the heat dissipation fins 7, thus cooling down. During this cooling process, water can be introduced into the isolation cover through the water inlet pipe 9 and the water outlet pipe 10 to further enhance the cooling effect. The air then enters the drying mechanism 5, where it is dehumidified by the honeycomb cylindrical desiccant blocks 12, removing moisture and completing the air pretreatment. At this point, the air can be collected by a collection device and then sent to an analytical device for gas analysis.

[0035] During use, bolts 20 and nuts 21 can be removed to open the semi-circular housing 19. At this time, the inner sleeve assembly 15 can be removed from the outer sleeve assembly 14, and the clip 17 of the outer sleeve assembly 14 can be dislodged from the slot 18. The outer sleeve assembly 14 can be removed, and the semi-cylinder 22 can be further separated. The filter screen 11 can be removed from the first mounting slot 23 in the inner sleeve assembly 15, and the honeycomb cylindrical desiccant block 12 can be removed from the second mounting slot 24 in the inner sleeve assembly 15. The filter screen 11 can be cleaned, and the honeycomb cylindrical desiccant block 12 can be replaced, thereby realizing the maintenance of the device. The device can also be assembled by reversing the operation.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air gas analysis pre-treatment device comprising an intermediate conduit (1), characterised in that: Both ends of the intermediate pipeline (1) are provided with connecting pipelines (2), the ends of the connecting pipelines (2) away from each other are fixedly connected with connecting flanges (3), the gas inlet end of the intermediate pipeline (1) and the corresponding connecting pipeline (2) are provided with a filtering mechanism (4), the gas outlet end of the intermediate pipeline (1) and the connecting pipeline (2) are provided with a drying mechanism (5), the intermediate pipeline (1) is provided with a cooling mechanism (6), the cooling mechanism (6) comprises heat dissipation fins (7) fixedly connected to the side wall of the intermediate pipeline (1) in a circumferential direction, the heat dissipation fins (7) are wrapped with an isolation cover (8) fixedly connected to the outside of the intermediate pipeline (1), the isolation cover (8) is provided with a water inlet pipe (9) and a water outlet pipe (10), the filtering mechanism (4) comprises a plurality of filter screens (11) arranged therein, and the drying mechanism (5) comprises a honeycomb cylindrical desiccant block (12) arranged therein.

2. An air gas analysis pre-treatment device according to claim 1, characterized in that: Both sides of the isolation cover (8) are fixedly connected with connecting frames (13) symmetrically, and the connecting frames (13) are fixedly connected with the corresponding connecting pipelines (2) respectively.

3. An air gas analysis pre-treatment device according to claim 1, characterized in that: The filtering mechanism (4) and the drying mechanism (5) both comprise an outer sleeve assembly (14) and an inner sleeve assembly (15), the inner side of the outer sleeve assembly (14) is provided with a placing groove (16) matched with the inner sleeve assembly (15), and the inner sleeve assembly (15) is arranged in the placing groove (16).

4. An air gas analysis pre-treatment device according to claim 3, characterized in that: Both ends of the outer sleeve assembly (14) are provided with clamping heads (17), and the opposite ends of the connecting pipeline (2) and the intermediate pipeline (1) are provided with clamping grooves (18), the clamping grooves (18) correspond to and are matched with the clamping heads (17), and the clamping heads (17) are inserted into the clamping grooves (18).

5. An air gas analysis pre-treatment device according to claim 3, characterized in that: The outer sleeve assembly (14) is composed of two symmetrically arranged semicircular shells (19), one side of the semicircular shells (19) is hingedly connected to each other, and the other side of the semicircular shells (19) is penetrated by a plurality of bolts (20) in common, and the end portions of the bolts (20) are threadedly connected with nuts (21).

6. An air gas analysis pre-treatment device according to claim 3, characterized in that: The inner sleeve assembly (15) is composed of two identical semicylinders (22).

7. An air gas analysis pre-treatment device according to claim 3, characterized in that: A plurality of first mounting grooves (23) are equidistantly arranged in the inner sleeve assembly (15) of the filtering mechanism (4), the filter screens (11) are embedded in the first mounting grooves (23), and the inner sleeve assembly (15) of the drying mechanism (5) is provided with a second mounting groove (24), and the honeycomb cylindrical desiccant block (12) is embedded in the second mounting groove (24).

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