A chlorine absorption device

Abstract

The present invention discloses a chlorine absorption device, which relates to the field of emergency treatment of toxic gases, and includes a packed absorption tower, a solution tank, a pressure pump, a first centrifugal fan and a second centrifugal fan, wherein one end of the first centrifugal fan is connected to a filter device, and the filter device includes a box body, a first sealing cover and a second sealing cover, and a dehydration chamber and a filter chamber are provided inside the box body, a mounting frame is installed inside the filter chamber, and a limit hole is provided on the top of the mounting frame, and a dust removal pipe is installed at the bottom of the limit hole, a filter disc is installed on the top of the mounting frame, and a dust removal port is provided on one side of the filter disc, a rotating rod is rotatably connected to the inside of the limit hole, and a plug cover matching the dust removal port is installed on the side of the rotating rod. The present invention can filter chlorine by providing a filter device, and a filter disc is provided inside the filter device to remove most of the dust and impurities contained in the chlorine.

Description

Technical Field

[0001] The invention relates to the field of toxic gas emergency treatment, in particular to a chlorine absorption device. Background Art

[0002] Chlorine is a green-yellow gas. It is a toxic gas with a pungent odor at room temperature and pressure. It is a strong oxidant that can react violently with other substances. Chlorine has a high electronegativity and can form salts and halides with metals. When dissolved in water, it will generate hydrochloric acid, which is strongly acidic.

[0003] There are corresponding emergency treatment methods for chlorine leakage in industrial production. As a toxic gas, the main treatment method is to absorb chlorine with alkaline solution, which is a neutralization reaction. When chlorine leakage occurs in the chlorine warehouse, the probe installed in the chlorine warehouse detects that the chlorine concentration exceeds the standard, and the equipment starts automatically. The fan pumps the chlorine-containing mixed gas in the chlorine warehouse through the ditch to the reaction absorption tower. A mass transfer reaction occurs between the gas and liquid phases in the absorption tower, and the chlorine is absorbed by the absorption liquid. The liquid after the reaction flows back to the liquid storage regeneration tank. After regeneration, the absorption liquid can react with chlorine again and be recycled. The absorption liquid does not need to be replaced. The absorbed gas is sent back to the chlorine warehouse through a professional air distribution unit to form a circulating air distribution system to achieve the purpose of environmental protection and ensure safe production. When the chlorine concentration in the air of the chlorine warehouse is less than the set value, the equipment automatically stops running.

[0004] Common chlorine emergency absorption devices are mainly composed of solution tanks, absorption towers, centrifugal fans and other components. When the leaked chlorine is absorbed, a small amount of air will be sucked in together. The air contains some dust and impurities. When the dust and impurities enter the absorption tower, it is easy to cause the packing in the absorption tower to be blocked over time, causing pollution to the absorption tower and reducing the absorption tower's absorption effect on chlorine. Summary of the Invention

[0005] Based on this, the object of the present invention is to provide a chlorine absorption device to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a chlorine absorption device, comprising a packed absorption tower, a solution tank, a pressure pump, a first centrifugal fan and a second centrifugal fan, wherein one end of the first centrifugal fan is connected to a filter device, and the filter device comprises a box body, a first sealing cover and a second sealing cover, and a dehydration chamber and a filter chamber are provided inside the box body, a mounting frame is installed inside the filter chamber, a limiting hole is provided at the top of the mounting frame, and a dust removal pipe is installed at the bottom of the limiting hole, a filter disc is installed at the top of the mounting frame, and a dust removal port is provided on one side of the filter disc, a rotating rod is rotatably connected to the inside of the limiting hole, and a blocking cover matching the dust removal port is installed on the side of the rotating rod.

[0007] By adopting the above technical solution, a filtering device is provided, and a filter disc is provided inside the filtering device to filter chlorine, and most of the dust and impurities contained in the chlorine can be removed, thereby reducing the dust and impurities entering the packed absorption tower, and further reducing the clogging of the packing in the packed absorption tower by the dust and impurities, which can extend the service life of the packed absorption tower, so that the packed absorption tower maintains a high absorption effect on chlorine. By providing a dust removal port, a dust removal pipe rotating rod and a blocking cover, when a large amount of dust and impurities are attached to the surface of the filter disc, the dust on the surface of the filter disc can be cleaned by rotating the blocking cover by rotating the rotating rod, and then discharged through the dust removal pipe. Regular cleaning of the filter disc can improve the filtering effect of the filter disc, thereby improving the filtering effect of the filtering device on chlorine.

[0008] The present invention is further configured such that a valve is installed at the bottom of the dehydration chamber, and the valve discharges the concentrated sulfuric acid inside the dehydration chamber.

[0009] By adopting the above technical solution and arranging a valve on one side of the dehydration chamber, the concentrated sulfuric acid in the dehydration chamber can be discharged and added.

[0010] The present invention is further configured such that the bottom of the dust removal duct is connected to the inner wall of the box body, and a through groove connected to the dust removal duct is provided on one side of the bottom of the box body.

[0011] By adopting the above technical solution and providing a dust removal pipe, the dust cleaned by the rotating blocking cover can be discharged from the dust removal pipe.

[0012] The present invention is further configured such that a filling port is provided on the top of the first sealing cover, and the first sealing cover and the second sealing cover are connected via a connecting pipe.

[0013] By adopting the above technical solution, by setting a filling port on the top of the first sealing cover, concentrated sulfuric acid can be added to the dehydration chamber, and a connecting pipe is set so that chlorine can enter the filter chamber from the dehydration chamber.

[0014] The present invention is further configured such that the rotating rod is rotatably connected to the second sealing cover.

[0015] By adopting the above technical solution, by setting the rotating rod and the second sealing cover as a rotating connection, when it is necessary to clean the dust on the surface of the filter, it can be achieved by rotating the rotating rod to drive the blocking cover.

[0016] The present invention is further configured such that the output end of the second centrifugal fan is connected to the dehydration chamber, the input end of the first centrifugal fan is connected to the filter chamber, and the output end of the first centrifugal fan is connected to the packed absorption tower.

[0017] By adopting the above technical solution and providing the first centrifugal fan and the second centrifugal fan, the absorption effect of chlorine can be improved.

[0018] The present invention is further configured such that an exhaust port is provided on the top of the packed absorption tower, and the exhaust port is used to release the air inside the packed absorption tower.

[0019] By adopting the above technical solution and arranging an exhaust port at the top of the packed absorption tower, the residual air can be discharged after the chlorine is filtered and absorbed.

[0020] The present invention is further configured such that the packed absorption tower and the solution tank are connected via a pipeline, and a pressure pump is provided between the packed absorption tower and the solution tank.

[0021] By adopting the above technical solution, the circulation of the alkaline solution between the solution tank and the packed absorption tower can be achieved by setting a pressure pump.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. The present invention provides a filtering device with a filter sheet inside which can filter chlorine and remove most of the dust and impurities contained in the chlorine, thereby reducing the dust and impurities entering the packed absorption tower, thereby reducing the clogging of the packing in the packed absorption tower by the dust and impurities, and extending the service life of the packed absorption tower, so that the packed absorption tower maintains a high absorption effect on chlorine.

[0024] 2. The present invention provides a filtering device with a dehydration chamber inside. The dehydration chamber is filled with concentrated sulfuric acid. Chlorine containing water vapor is passed into the concentrated sulfuric acid, which can effectively remove the moisture contained in the chlorine and reduce the reaction of chlorine and water vapor to generate hypochlorous acid, thereby reducing the corrosion of hypochlorous acid to the equipment and extending the service life of the equipment.

[0025] 3. The present invention is provided with a dust removal port, a dust removal pipe rotating rod and a blocking cover. When a large amount of dust and impurities adhere to the surface of the filter, the blocking cover can be rotated by rotating the rotating rod to clean the dust on the surface of the filter, and then discharged through the dust removal pipe. Regular cleaning of the filter can improve the filtering effect of the filter, thereby improving the filtering effect of the filter device on chlorine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic structural diagram of the filtering device of the present invention;

[0028] Figure 3 is a cross-sectional view of the filter device of the present invention;

[0029] Figure 4 Schematic diagram of the internal structure of the box of the present invention;

[0030] Figure 5 is a cross-sectional view of the filter chamber of the present invention;

[0031] Figure 6 Schematic diagram of the filter structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the connection between the rotating rod and the blocking cover of the present invention.

[0033] In the figure: 1. Packing absorption tower; 2. Exhaust port; 3. Solution tank; 4. Pressure pump; 5. First centrifugal fan; 6. Filter device; 7. Second centrifugal fan; 8. Dehydration chamber; 9. Filter chamber; 10. Filter disc; 11. Dust removal port; 601. Box body; 602. Valve; 603. Mounting bracket; 604. Limiting hole; 605. Dust removal duct; 606. First sealing cover; 607. Filling port; 608. Second sealing cover; 609. Connecting pipe; 610. Rotating rod; 611. Blocking cover. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0035] The following describes an embodiment of the present invention based on its overall structure.

[0036] Example 1

[0037] A chlorine absorption device, such as Figure 1-7As shown, it includes a packed absorption tower 1, a solution tank 3, a pressure pump 4, a first centrifugal fan 5 and a second centrifugal fan 7. One end of the first centrifugal fan 5 is connected to a filter device 6, and the filter device 6 includes a box body 601, a first sealing cover 606 and a second sealing cover 608. A filter chamber 9 is provided inside the box body 601, a mounting frame 603 is installed inside the filter chamber 9, and a limiting hole 604 is installed on the top of the mounting frame 603, and a dust removal pipe 605 is installed at the bottom of the limiting hole 604. A filter disc 10 is installed on the top of the mounting frame 603, and a dust removal port 11 is opened on one side of the filter disc 10. The internal rotation of the limiting hole 604 is connected to a rotating rod 610, and a blocking cover 611 matching the dust removal port 11 is installed on the side of the rotating rod 610. By setting the filter 10, the mixed dust and impurities in the chlorine gas can be effectively filtered, and the dust entering the packed absorption tower 1 to clog the filler is reduced, thereby improving the absorption effect of the packed absorption tower 1 on chlorine gas. The setting of the dust removal port 11 and the blocking cover 611, when the blocking cover 611 is not working, the blocking cover 611 can seal the dust removal port 11. When the blocking cover 611 rotates, the dust attached to the upper surface of the filter 10 can be scraped off and discharged through the dust removal pipe 605.

[0038] See also Figure 5 The bottom of the dust removal duct 605 is connected to the inner wall of the box body 601, and a through groove is opened on the outer wall of the box body 601 to communicate with the dust removal duct 605. By setting up the dust removal duct 605, the dust cleaned by the rotating blocking cover 611 can be discharged from the dust removal duct 605.

[0039] See also Figure 3 The rotating rod 610 and the second sealing cover 608 are rotatably connected. By setting the rotating rod 610 and the second sealing cover 608 as a rotatable connection, when it is necessary to clean the dust on the surface of the filter 10, it can be achieved by rotating the rotating rod 610 to drive the blocking cover 611.

[0040] See also Figure 1 An exhaust port 2 is provided at the top of the packed absorption tower 1. By providing the exhaust port 2 at the top of the packed absorption tower 1, the residual air can be discharged after the chlorine is filtered and absorbed.

[0041] See also Figure 1 The packed absorption tower 1 and the solution tank 3 are connected by a pipeline, and a pressure pump 4 is provided between the packed absorption tower 1 and the solution tank 3. By providing the pressure pump 4, the alkaline solution can be circulated between the solution tank 3 and the packed absorption tower 1.

[0042] Example 2

[0043] A chlorine absorption device, such as Figure 2-5As shown, a dehydration chamber 8 is provided inside the box 601, and a valve 602 is provided on one side of the box 601, and the valve 602 is connected to the dehydration chamber 8. By providing the valve 602 on one side of the dehydration chamber 8, the concentrated sulfuric acid in the dehydration chamber 8 can be released. A filling port 607 is provided on the top of the first sealing cover 606, and the first sealing cover 606 and the second sealing cover 608 are connected by providing a connecting pipe 609. By providing the filling port 607 on the top of the first sealing cover 606, concentrated sulfuric acid can be added to the dehydration chamber 8. The connecting pipe 609 is provided so that chlorine can enter the filter chamber 9 from the dehydration chamber 8. The dehydration chamber 8 is provided inside the filter device 6, and an appropriate amount of concentrated sulfuric acid is added to the dehydration chamber 8 so that the chlorine passes through the concentrated sulfuric acid to remove water before entering the filter chamber 9. This can reduce the reaction of chlorine with water to generate hypochlorous acid. Hypochlorous acid is weakly acidic and can reduce the corrosion of hypochlorous acid to the equipment, thereby extending the service life of the equipment.

[0044] See also Figure 1 One end of the second centrifugal fan 7 is connected to the dehydration chamber 8 through a pipeline, the first centrifugal fan 5 is connected to the filter chamber 9 through a pipeline, and the other end of the first centrifugal fan 5 is connected to the packed absorption tower 1 through a pipeline. By arranging the first centrifugal fan 5 and the second centrifugal fan 7, the absorption effect of chlorine can be improved.

[0045] The working principle of the present invention is as follows: when there is a leak of chlorine that needs emergency treatment, the second centrifugal fan 7 is started, and the second centrifugal fan 7 will suck the leaked chlorine into the interior of the filter device 6. The chlorine enters the dehydration chamber 8 through the pipeline. After dehydration treatment with concentrated sulfuric acid, a small amount of water contained in the chlorine can be removed. Then the chlorine enters the interior of the filter chamber 9 through the connecting pipe 609. The chlorine passes through the filter plate 10. A small amount of dust and impurities are blocked by the filter plate 10. Then the chlorine is sucked into the interior of the packed absorption tower 1 by the first centrifugal fan 5. The pressure pump 4 works to suck the alkaline solution in the solution tank 3 into the 1 The inside of the packed absorption tower falls from top to bottom to react with the chlorine, and the alkaline solution that falls to the bottom of the packed absorption tower is re-circulated into the inside of the solution tank 3, and the chlorine reacts with the alkaline solution to neutralize, and the air is discharged from the exhaust port 2. After the equipment is used for the first period of time, a large amount of dust will adhere to the surface of the filter 10, which can be cleaned regularly. When cleaning, keep the equipment stopped, rotate the rotating rod 610 to drive the blocking cover 611 to rotate along the upper surface of the filter 10, and the blocking cover 611 can push the dust and impurities into the dust removal pipe 605. The cleaned filter 10 will have a better filtering effect.

[0046] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A chlorine absorption device, comprising a packed absorption tower (1), a solution tank (3), a pressure pump (4), a first centrifugal fan (5) and a second centrifugal fan (7), characterized in that: One end of the first centrifugal fan (5) is connected to a filter device (6), and the filter device (6) includes a box body (601), a first sealing cover (606) and a second sealing cover (608), and a dehydration chamber (8) and a filter chamber (9) are provided inside the box body (601), a mounting frame (603) is installed inside the filter chamber (9), a limiting hole (604) is provided on the top of the mounting frame (603), and a dust removal pipe (605) is installed at the bottom of the limiting hole (604), a filter plate (10) is installed on the top of the mounting frame (603), and a dust removal port (11) is provided on one side of the filter plate (10), a rotating rod (610) is rotatably connected to the inside of the limiting hole (604), and a blocking cover (611) matching the dust removal port (11) is installed on the side of the rotating rod (610); The bottom of the dust removal pipe (605) is connected to the inner wall of the box body (601), and a through groove connected to the dust removal pipe (605) is provided on one side of the bottom of the box body (601).

2. A chlorine absorption device according to claim 1, characterized in that: A valve (602) is installed at the bottom of the dehydration chamber (8), and the valve (602) discharges concentrated sulfuric acid inside the dehydration chamber (8).

3. A chlorine absorption device according to claim 1, characterized in that: A filling port (607) is provided on the top of the first sealing cover (606), and the first sealing cover (606) and the second sealing cover (608) are connected via a connecting pipe (609).

4. A chlorine absorption device according to claim 1, characterized in that: The rotating rod (610) and the second sealing cover (608) are rotatably connected.

5. A chlorine absorption device according to claim 1, characterized in that: The output end of the second centrifugal fan (7) is connected to the dehydration chamber (8), the input end of the first centrifugal fan (5) is connected to the filter chamber (9), and the output end of the first centrifugal fan (5) is connected to the packed absorption tower (1).

6. A chlorine absorption device according to claim 1, characterized in that: An exhaust port (2) is provided at the top of the packed absorption tower (1), and the exhaust port (2) releases the air inside the packed absorption tower (1).

7. A chlorine absorption device according to claim 1, characterized in that: The packed absorption tower (1) and the solution tank (3) are connected via a pipeline, and a pressure pump (4) is provided between the packed absorption tower (1) and the solution tank (3).

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