Pipeline dehumidifier with filtering structure

Abstract

The utility model discloses a pipeline dehumidifier with a filtering structure, which comprises a first pipeline, a second pipeline is arranged at the top end of the first pipeline, and a third pipeline is arranged at the top end of the second pipeline. According to the pipeline dehumidifier, two groups of perforated plates and a defoaming net are arranged, so that gas can be uniformly distributed when passing through; the porous plate is arranged on the filter medium, the contact area of gas and the filter medium is increased, so that the filter efficiency is improved, the defoaming net is mainly used for filtering the gas pumped in vacuum and further purifying the gas, and the porous plate and the defoaming net are combined for use, so that moisture which is not condensed out can be blocked by the defoaming net, particles such as dust in the gas can be filtered out, and the filter efficiency is improved. And meanwhile, the first pipeline, the second pipeline and the third pipeline are fixedly connected through a plurality of flange plates, and the connecting mode is stable in structure and convenient to disassemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of duct dehumidifier technology, specifically a duct dehumidifier with a filter structure. Background Technology

[0002] A duct dehumidifier is a device specifically designed to remove moisture from ducts. It primarily uses an evaporator to cool and dehumidify the air, recovering the system's condensation heat to compensate for the heat lost during cooling and dehumidification. When indoor temperature and humidity are both high, and the indoor cooling load is significant, the duct dehumidifier operates in cooling and dehumidification mode. In this mode, the indoor air is cooled and dehumidified by the indoor first heat exchanger (evaporator), returning to the room as low-temperature, low-humidity air. Simultaneously, the cooling and dehumidification capacity can be further adjusted by regulating the airflow or water flow of the outdoor heat exchanger.

[0003] In existing production equipment vacuum systems, the gas extracted contains a certain amount of moisture. When this moisture-containing gas enters the screw vacuum pump, it causes a series of serious problems. First, prolonged moisture erosion will gradually degrade the performance of these components, affecting the pumping efficiency and vacuum level of the screw vacuum pump. Corrosion and wear will also accelerate the aging process of the screw vacuum pump, shortening its service life. Second, moisture accumulation inside the screw vacuum pump may cause malfunctions and shutdowns. When the moisture reaches a certain level, it may cause ice formation or blockage inside the pump body, preventing the screw vacuum pump from working properly and leading to a significant increase in maintenance frequency and frequent unplanned shutdowns. Therefore, we need to propose a pipeline dehumidifier with a filtration structure. Utility Model Content

[0004] The purpose of this invention is to provide a duct dehumidifier with a filter structure. By setting up a perforated plate and a demister, the uncondensed moisture is blocked by the demister, and the demister can also filter out particulate matter such as dust in the gas, ensuring that the gas entering the vacuum pump is dry and free of impurities, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A duct dehumidifier with a filtration structure includes a first duct, a second duct at the top of the first duct, a third duct at the top of the second duct, a first flange at the top of the first duct, a second flange at the bottom of the second duct, a third flange at the top of the second duct, and a fourth flange at the bottom of the third duct. The interior of the third duct contains two sets of perforated plates, and a demist screen for filtering vacuum-extracted gas is provided on one side of each set of perforated plates facing each other.

[0007] Preferably, a first tube sheet is installed on the side of the first flange plate and the second flange plate facing each other, and a second tube sheet is installed on the side of the third flange plate and the fourth flange plate facing each other. Multiple sets of heat exchange tubes are provided on the side of the first tube sheet and the second tube sheet facing each other.

[0008] Preferably, the multiple sets of heat exchange tubes are arranged in a rectangular array, and all of the multiple sets of heat exchange tubes are arranged inside the second pipe.

[0009] Preferably, a fifth flange plate is provided at the top of the third pipe, a first flange blind plate is installed on the top of the fifth flange plate, and four sets of pressure strips are provided at the bottom of the first flange blind plate, with the bottom ends of the four sets of pressure strips all located on the top of one of the perforated plates.

[0010] Preferably, an air inlet connection pipe is connected to the outside of the first pipe, and an air outlet connection pipe is connected to the outside of the third pipe.

[0011] Preferably, a sixth flange plate is provided at the bottom end of the first pipe, and a second flange blind plate is installed at the bottom of the sixth flange plate, with a drain connection pipe connected to the bottom of the second flange blind plate.

[0012] Preferably, an inlet pipe is provided on the outside of the second pipe to facilitate the entry of cooling water, and an outlet pipe is provided on the outside of the second pipe to facilitate the discharge of cooling water.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a perforated plate and a demister screen. The two sets of perforated plates ensure uniform gas distribution during passage, increasing the contact area between the gas and the filter medium, thereby improving filtration efficiency. The demister screen is primarily used to filter the gas extracted from the vacuum pump, further purifying the gas. The combined use of the perforated plate and the demister screen helps to block uncondensed moisture and also filters out particulate matter such as dust from the gas, ensuring that the gas entering the vacuum pump is dry and free of impurities. Furthermore, the first, second, and third pipes are fixedly connected by multiple flange plates. This connection method is not only structurally stable but also facilitates disassembly and maintenance. The flange plate design ensures a tight connection between the pipes, preventing gas leakage and ensuring effective dehumidification and filtration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the first pipe, the second pipe, and the third pipe of this utility model;

[0017] Figure 3This is a schematic diagram of the structure of the perforated plate and demister of this utility model.

[0018] In the diagram: 1. First pipe; 2. Second pipe; 3. Third pipe; 4. First flange plate; 5. Second flange plate; 6. Third flange plate; 7. Fourth flange plate; 8. Perforated plate; 9. Defogging screen; 10. First tube sheet; 11. Second tube sheet; 12. Heat exchange tube; 13. Fifth flange plate; 14. First flange blind plate; 15. Pressure strip; 16. Inlet connection pipe; 17. Outlet connection pipe; 18. Sixth flange plate; 19. Second flange blind plate; 20. Drain connection pipe; 21. Water inlet pipe; 22. Water outlet pipe. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3 This utility model provides a technical solution:

[0021] A duct dehumidifier with a filtration structure includes a first duct 1, a second duct 2 at the top of the first duct 1, a third duct 3 at the top of the second duct 2, a first flange plate 4 at the top of the first duct 1, a second flange plate 5 at the bottom of the second duct 2, a third flange plate 6 at the top of the second duct 2, and a fourth flange plate 7 at the bottom of the third duct 3. Two sets of perforated plates 8 are arranged inside the third duct 3, and a demisting screen 9 for filtering vacuum-extracted gas is arranged on one side of the two sets of perforated plates 8 facing each other. Through the hierarchical structure of the first duct 1, second duct 2, and third duct 3, and the corresponding flange plate connections, the orderly guidance and dehumidification of gas are achieved. Multiple flange plates are fixedly connected by multiple sets of bolts and nuts, enhancing the stability of the duct structure. Sealing gaskets are provided at the joints of the first duct 1, second duct 2, and third duct 3, effectively enhancing the sealing between the ducts.

[0022] A first tube sheet 10 is installed on the side of the first flange plate 4 and the second flange plate 5 facing each other, and a second tube sheet 11 is installed on the side of the third flange plate 6 and the fourth flange plate 7 facing each other. Multiple sets of heat exchange tubes 12 are arranged on the side of the first tube sheet 10 and the second tube sheet 11 facing each other. Through the arrangement of the first tube sheet 10, the second tube sheet 11 and the fourth flange plate 7, the three are fixedly connected by multiple sets of bolts and nuts, which enhances the stability and sealing of the pipeline structure. The multiple sets of heat exchange tubes 12 effectively improve the heat exchange efficiency and help dehumidify the gas.

[0023] Multiple heat exchange tubes 12 are arranged in a rectangular array, and all of the heat exchange tubes 12 are located inside the second pipe 2. The rectangular array arrangement of the heat exchange tubes 12 ensures that the gas can be heated evenly when passing through the heat exchange tubes 12, which improves the uniformity and efficiency of heat exchange. All heat exchange tubes 12 are located inside the second pipe 2, which simplifies the structure and facilitates maintenance and management.

[0024] The top of the third pipe 3 is provided with a fifth flange plate 13, and a first flange blind plate 14 is installed on the top of the fifth flange plate 13. Four sets of pressure strips 15 are provided at the bottom of the first flange blind plate 14. The bottom of each of the four sets of pressure strips 15 is located on the top of one of the perforated plates 8. Through the arrangement of the fifth flange plate 13, the first flange blind plate 14 and the pressure strips 15, the combination of the fifth flange plate 13 and the first flange blind plate 14 provides additional sealing and protection for the top of the third pipe 3. The design of the pressure strips 15 enhances the stability of the perforated plate 8 and prevents it from being displaced or damaged during gas flow.

[0025] The outer side of the first pipe 1 is connected to an inlet pipe 16, and the outer side of the third pipe 3 is connected to an outlet pipe 17. The inlet pipe 16 and the outlet pipe 17 enable smooth gas flow, facilitate connection with other gas treatment equipment, and improve the flexibility and versatility of the entire gas treatment system.

[0026] A sixth flange plate 18 is provided at the bottom of the first pipe 1. A second flange blind plate 19 is installed at the bottom of the sixth flange plate 18. A drain connection pipe 20 is connected to the bottom of the second flange blind plate 19. The arrangement of the sixth flange plate 18, the second flange blind plate 19 and the drain connection pipe 20, together with the combination of the sixth flange plate 18 and the second flange blind plate 19, provides a seal and protection for the bottom of the first pipe 1. The design of the drain connection pipe 20 facilitates the collection and treatment of condensate generated during the dehumidification process, preventing water droplets from falling and causing pollution to the equipment or the environment.

[0027] The outer side of the second pipe 2 is provided with an inlet pipe 21 to facilitate the entry of cooling water, and an outlet pipe 22 to facilitate the discharge of cooling water. The inlet pipe 21 and outlet pipe 22 facilitate the circulation of cooling water and improve energy efficiency. The circulation of cooling water can effectively reduce the temperature of the gas in the pipe, thereby enhancing the dehumidification effect.

[0028] Working principle: When this utility model is in use, the humid gas extracted from the equipment system enters the first pipe 1 through the inlet connection pipe 16, and then the gas enters the multiple sets of heat exchange tubes 12. At this time, cooling water enters the second pipe 2 through the water inlet pipe 21, so that the condensate can cool the gas in the heat exchange tubes 12. The cooled gas enters the third pipe 3 through the heat exchange tubes 12. At this time, the perforated plate 8 and the demister 9 filter the gas, thereby filtering out the uncondensed water and dust and other particulate matter in the gas. The filtered gas enters the vacuum pipeline through the outlet connection pipe 17 and flows into the vacuum pump. Finally, the filtered water is discharged through the drain connection pipe 20.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A duct dehumidifier with filtering structure, comprising a first duct (1), characterized in that: The top end of the first pipeline (1) is provided with a second pipeline (2), the top end of the second pipeline (2) is provided with a third pipeline (3), the top end of the first pipeline (1) is provided with a first flange plate (4), the bottom end of the second pipeline (2) is provided with a second flange plate (5), the top end of the second pipeline (2) is provided with a third flange plate (6), the bottom end of the third pipeline (3) is provided with a fourth flange plate (7), and the inside of the third pipeline (3) is provided with two groups of perforated plates (8). The side of the two groups of perforated plates (8) facing each other is provided with a demister net (9) for filtering the gas extracted by vacuum.

2. The duct dehumidifier with filter structure according to claim 1, characterized in that: The side of the first flange plate (4) and the second flange plate (5) facing each other is provided with a first tube plate (10), the side of the third flange plate (6) and the fourth flange plate (7) facing each other is provided with a second tube plate (11), and the side of the first tube plate (10) and the second tube plate (11) facing each other is provided with a plurality of heat exchange tubes (12).

3. The duct dehumidifier with filter structure according to claim 2, characterized in that: The plurality of heat exchange tubes (12) are arranged in a rectangular array, and the plurality of heat exchange tubes (12) are arranged in the second pipeline (2).

4. The duct dehumidifier with filter structure according to claim 3, characterized in that: The top end of the third pipeline (3) is provided with a fifth flange plate (13), the top of the fifth flange plate (13) is provided with a first flange blind plate (14), the bottom of the first flange blind plate (14) is provided with four groups of pressing strips (15), and the bottom end of the four groups of pressing strips (15) is arranged on the top of one group of perforated plates (8).

5. The duct dehumidifier with filter structure according to claim 4, characterized in that: The outside of the first pipeline (1) is communicated with an air inlet connecting pipe (16), and the outside of the third pipeline (3) is communicated with an air outlet connecting pipe (17).

6. A duct dehumidifier with filter structure according to claim 5, characterized in that: The bottom end of the first pipeline (1) is provided with a sixth flange plate (18), the bottom of the sixth flange plate (18) is provided with a second flange blind plate (19), and the bottom of the second flange blind plate (19) is communicated with a drainage connecting pipe (20).

7. A duct dehumidifier with filter structure according to claim 6, characterized in that: The outside of the second pipeline (2) is provided with a water inlet pipe (21) for facilitating the entry of cooling water, and the outside of the second pipeline (2) is provided with a water outlet pipe (22) for facilitating the discharge of cooling water. The outside of the second pipeline (2) is provided with a water inlet pipe (21) for facilitating the entry of cooling water, and the outside of the second pipeline (2) is provided with a water outlet pipe (22) for facilitating the discharge of cooling water.

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