Gaseous membrane deamination experimental device

Abstract

The utility model discloses a gaseous membrane deamination experimental device which comprises a liquid containing box, the interior of the liquid containing box is hollow, the upper surface of the liquid containing box is fixedly connected with an air outlet, the side surface of the liquid containing box is fixedly connected with an air inlet, the side surface of the liquid containing box is fixedly connected with a liquid inlet pipe in the direction perpendicular to the air inlet, and the liquid inlet pipe is fixedly connected with a liquid outlet pipe in the direction perpendicular to the air inlet. A sealing cover is arranged on the upper surface of the liquid containing box, a stop valve is fixedly connected to the lower surface of the liquid containing box through a pipeline, a sedimentation tank is fixedly connected to the lower end of the stop valve through a pipeline, a gaseous membrane device is fixedly connected to the right side surface of the sedimentation tank through a pipeline, and a sealing cover is arranged on the upper surface of the sedimentation tank; and a sealing cover is arranged on the upper surface of the gaseous membrane device. Each step in the ammonia removal process of the gaseous membrane can be examined and taught through the sealing cover, the process and the effect of each step are known, the best experiment effect is achieved, and impurities and colloids can be prevented from blocking the experiment instrument through the filtering device.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid ammonia removal, in particular to a gaseous membrane ammonia removal experimental device. Background Technique

[0002] Gaseous membrane ammonia removal is an advanced method for ammonia removal and is widely used in the field of landfill leachate. The main principle is that the ammonia-containing feed liquid passes through the tube side of the membrane module, and the absorbent liquid flows crosswise with the feed liquid in the shell side. Under certain pH conditions, ammonia in the feed liquid vaporizes at the interface between the feed liquid and the microporous membrane and diffuses through the membrane pores, and reacts with H+ in the acidic absorbent liquid at the interface between the microporous membrane and the absorbent liquid to obtain highly concentrated and purified ammonium salts or ammonia water, thereby removing ammonia from the feed liquid.

[0003] However, most of the gaseous membrane ammonia removal experimental devices are of an integral structure, and it is difficult to see the specific internal process steps, which easily leads to experimental errors or poor teaching effects during teaching or use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a gaseous membrane ammonia removal experimental device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, a gaseous membrane ammonia removal experimental device is provided, including a liquid storage tank. The inside of the liquid storage tank is hollow. An air outlet is fixedly connected to the upper surface of the liquid storage tank. An air inlet is fixedly connected to the side surface of the liquid storage tank. A liquid inlet pipe is fixedly connected to the side surface of the liquid storage tank in a direction perpendicular to the air inlet. A cover is arranged on the upper surface of the liquid storage tank. A stop valve is fixedly connected to the lower surface of the liquid storage tank through a pipeline. The lower end of the stop valve is fixedly connected to a sedimentation tank through a pipeline. A gaseous membrane device is fixedly connected to the right side surface of the sedimentation tank through a pipeline. A cover is arranged on the upper surface of the sedimentation tank. A cover is arranged on the upper surface of the gaseous membrane device, and the cover can be opened by rotation.

[0006] According to the gaseous membrane ammonia removal experimental device, the inside of the sedimentation tank is hollow. A vertical shaft is rotatably connected to the bottom surface inside the sedimentation tank. Four identical fan blades are fixedly connected to the side surface of the vertical shaft. The fan blades are in a plate shape. One end of the fan blade close to the vertical shaft is fixedly connected to the outer surface of the vertical shaft. The central axis direction of the vertical shaft coincides with the central axis direction of the sedimentation tank. The vertical shaft is arranged to facilitate the rotation control of the fan blades to accelerate the reaction.

[0007] According to the described gaseous membrane ammonia removal experimental device, a worm gear is rotatably connected to the lower surface of the sedimentation tank. The central axis direction of the worm gear coincides with the central axis direction of the sedimentation tank. A fixed outer shell is fixedly connected to the lower surface of the sedimentation tank. The interior of the fixed outer shell is hollow. The worm gear is arranged inside the fixed outer shell. A connecting shaft is rotatably connected to the inner side wall of the fixed outer shell. One end of the connecting shaft away from the inner side wall of the fixed outer shell is fixedly connected to a worm. The outer surface of the worm is meshed with the outer surface of the worm gear. The worm is provided to facilitate the rotation of the worm gear to drive the vertical shaft and the fan blade inside the sedimentation tank to rotate, so as to accelerate sedimentation.

[0008] According to the described gaseous membrane ammonia removal experimental device, a filtering device is fixedly connected to the right side surface of the sedimentation tank. The right end surface of the filtering device is fixedly connected to a stop valve through a pipeline. The right end surface of the stop valve on the right side of the filtering device is fixedly connected to a gaseous membrane device through a pipeline. The filtering device is provided to facilitate the isolation of sediment and colloid from entering the next step and affecting ammonia removal.

[0009] According to the described gaseous membrane ammonia removal experimental device, a pipeline channel is fixedly connected to the upper surface of the sedimentation tank. A rotating shaft is rotatably connected to the upper surface of the channel. A cover door is rotatably connected to the upper surface of the rotating shaft. The cover door can be vertically flipped relative to the sedimentation tank with the rotating shaft as the axis. The cover door is provided to facilitate the addition of PAC and Ca(OH) through opening the cover door to remove impurities and suspended solid particles.

[0010] According to the described gaseous membrane ammonia removal experimental device, an absorption liquid inlet is fixedly connected to the upper surface of the gaseous membrane device. An outlet pipeline is fixedly connected to the right side surface of the absorption liquid inlet.

[0011] According to the described gaseous membrane ammonia removal experimental device, a motor is fixedly connected to the outer surface of the fixed outer shell. The motor is provided to facilitate the control of the rotation of the worm to drive the rotation of the worm gear, so as to drive the vertical shaft and the fan blade inside the sedimentation tank to rotate and accelerate sedimentation.

[0012] The beneficial effects of the present utility model: By providing a cover, each step in the gaseous membrane ammonia removal process can be inspected and taught, and the process and effect of each step can be understood, so as to achieve the best experimental effect.

[0013] Additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0014] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0015] Figure 1This is a three-dimensional view of the overall structure of an experimental device for gaseous membrane ammonia removal according to the present utility model;

[0016] Figure 2 This is a front view of the overall structure of an experimental device for gaseous membrane ammonia removal according to the present utility model;

[0017] Figure 3 This is a top view of the overall structure of an experimental device for gaseous membrane ammonia removal according to the present utility model;

[0018] Figure 4 This is a schematic diagram of a partial structure of an experimental device for gaseous membrane ammonia removal according to the present utility model;

[0019] Figure 5 This is a schematic diagram of a partial structure of an experimental device for gaseous membrane ammonia removal according to the present utility model;

[0020] Legend:

[0021] 1. Liquid storage tank; 2. Air outlet; 3. Air inlet; 4. Liquid inlet pipe; 5. Sealing cover; 6. Stop valve; 7. Sedimentation tank; 8. Rotating shaft; 9. Cover door; 10. Channel; 11. Vertical shaft; 12. Fan blade; 13. Worm gear; 14. Worm; 15. Connecting shaft; 16. Motor; 17. Fixed outer shell; 18. Filter device; 19. Gaseous membrane device; 20. Absorbing liquid inlet; 21. Outlet pipe. Specific implementation manners

[0022] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0023] Referring to Figures 1 to 5 , an experimental device for gaseous membrane ammonia removal according to an embodiment of the present utility model includes a liquid storage tank 1 with a hollow interior. An air outlet 2 is fixedly connected to the upper surface of the liquid storage tank 1. An air inlet 3 is fixedly connected to the side surface of the liquid storage tank 1. A liquid inlet pipe 4 is fixedly connected to the side surface of the liquid storage tank 1 in a direction perpendicular to the air inlet 3. A sealing cover 5 is arranged on the upper surface of the liquid storage tank 1. A stop valve 6 is fixedly connected to the lower surface of the liquid storage tank 1 through a pipe. The lower end of the stop valve 6 is fixedly connected to a sedimentation tank 7 through a pipe. A gaseous membrane device 19 is fixedly connected to the right side surface of the sedimentation tank 7 through a pipe. A sealing cover 5 is arranged on the upper surface of the sedimentation tank 7. A sealing cover 5 is arranged on the upper surface of the gaseous membrane device 19, and the sealing cover 5 can be opened by rotation.

[0024] The sedimentation tank 7 is hollow inside. The bottom surface inside the sedimentation tank 7 is rotatably connected to a vertical shaft 11. Four identical fan blades 12 are fixedly connected to the side surface of the vertical shaft 11. The fan blades 12 are plate-shaped. One end of the fan blade 12 close to the vertical shaft 11 is fixedly connected to the outer surface of the vertical shaft 11. The central axis direction of the vertical shaft 11 coincides with the central axis direction of the sedimentation tank 7. The rotation of the vertical shaft 11 controls the rotation of the fan blades 12 to accelerate the reaction.

[0025] The lower surface of the sedimentation tank 7 is rotatably connected to a worm gear 13. The central axis direction of the worm gear 13 coincides with the central axis direction of the sedimentation tank 7. The lower surface of the sedimentation tank 7 is fixedly connected to a fixed housing 17. The fixed housing 17 is hollow inside. The worm gear 13 is arranged inside the fixed housing 17. The inner side wall of the fixed housing 17 is rotatably connected to a connecting shaft 15. One end of the connecting shaft 15 far from the inner side wall of the fixed housing 17 is fixedly connected to a worm 14. The outer surface of the worm 14 is meshed with the outer surface of the worm gear 13. The motor 16 controls the rotation of the worm 14 to drive the rotation of the worm gear 13, so that the vertical shaft 11 and the fan blades 12 inside the sedimentation tank 7 rotate to accelerate sedimentation.

[0026] The right side surface of the sedimentation tank 7 is fixedly connected to a filtering device 18. The right end surface of the filtering device 18 is fixedly connected to a stop valve 6 through a pipeline. The right end surface of the stop valve 6 on the right side of the filtering device 18 is fixedly connected to a gas membrane device 19 through a pipeline. A filter screen is arranged inside the filtering device 18 to isolate sediment and colloid from entering the next step and affecting ammonia removal.

[0027] The upper surface of the sedimentation tank 7 is fixedly connected to a pipeline channel 10. The upper surface of the channel 10 is rotatably connected to a rotating shaft 8. The upper surface of the rotating shaft 8 is rotatably connected to a cover door 9. The cover door 9 can be vertically flipped relative to the sedimentation tank 7 with the rotating shaft 8 as the axis. By opening the cover door 9, PAC and Ca(OH)2 can be added to remove impurities and suspended solid particles.

[0028] The upper surface of the gas membrane device 19 is fixedly connected to an absorbent liquid inlet 20. The right side surface of the absorbent liquid inlet 20 is fixedly connected to an outlet pipeline 21. The absorbent liquid inlet 20 is used to add absorbent liquid to adjust the PH.

[0029] The outer surface of the fixed housing 17 is fixedly connected to a motor 16. The motor 16 is connected to an external power supply and then started. Its function is to control the rotation of the worm 14 to drive the rotation of the worm gear 13, so that the vertical shaft 11 and the fan blades 12 inside the sedimentation tank 7 rotate to accelerate sedimentation.

[0030] Working principle: First, the liquid to be deammoniated is discharged from the liquid inlet pipe 4 into the liquid storage tank 1. Then, air is exhausted inward from the air inlet 3 to blow off volatile substances and assist in coagulating the liquid. Then, the stop valve 6 is opened to discharge the liquid into the sedimentation tank 7. The cover door 9 is opened by rotating the rotating shaft 8, and Ca(OH)2, PAC, etc. are added inward. Then, the motor 16 is started to control the rotation of the worm 14 to drive the rotation of the worm wheel 13, so that the vertical shaft 11 and the fan blade 12 inside the sedimentation tank 7 rotate to accelerate the reaction, causing suspended solid particles to adhere together to form a colloid, combining with other impurities to form larger flocs. The flocs increase in volume through adsorption and finally precipitate under the action of gravity, improving the surface tension and pH. Meeting the water inlet requirements of the gaseous deammoniation membrane, the liquid reaches the gaseous membrane device 19 after passing through the filtering device 18, and the absorption liquid is added through the absorption liquid inlet 20 to adjust the PH to remove the ammonia contained in the liquid, thus achieving the experimental effect.

[0031] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A gaseous membrane deammoniation experimental device, comprising a liquid storage tank (1), characterized in that: The liquid storage box (1) is hollow inside, the upper surface of the liquid storage box (1) is fixedly connected with an air outlet (2), the side surface of the liquid storage box (1) is fixedly connected with an air inlet (3), the side surface of the liquid storage box (1) is fixedly connected with a liquid inlet pipe (4) in a direction perpendicular to the air inlet (3), the upper surface of the liquid storage box (1) is provided with a sealing cover (5), the lower surface of the liquid storage box (1) is fixedly connected with a stop valve (6) through a pipeline, the lower end of the stop valve (6) is fixedly connected with a sedimentation tank (7) through a pipeline, the right side surface of the sedimentation tank (7) is fixedly connected with a gas membrane device (19) through a pipeline, the upper surface of the sedimentation tank (7) is provided with a sealing cover (5), and the upper surface of the gas membrane device (19) is provided with a sealing cover (5), and the sealing cover (5) can be opened by rotation.

2. A gaseous membrane deammoniation experimental device according to claim 1, characterized in that: The sedimentation tank (7) is hollow inside, and the bottom surface of the sedimentation tank (7) is rotatably connected to a vertical shaft (11). Four identical fan blades (12) are fixedly connected to the side surface of the vertical shaft (11). The fan blades (12) are plate-shaped, and one end of the fan blade (12) close to the vertical shaft (11) is fixedly connected to the outer surface of the vertical shaft (11). The central axis direction of the vertical shaft (11) coincides with the central axis direction of the sedimentation tank (7).

3. A gaseous membrane deammoniation experimental device according to claim 1, characterized in that: A worm wheel (13) is rotatably connected to the lower surface of the sedimentation tank (7), and the central axis direction of the worm wheel (13) coincides with the central axis direction of the sedimentation tank (7). A fixed shell (17) is fixedly connected to the lower surface of the sedimentation tank (7), and the interior of the fixed shell (17) is hollow. The worm wheel (13) is arranged inside the fixed shell (17). The inner side wall of the fixed shell (17) is rotatably connected to a connecting shaft (15). One end of the connecting shaft (15) away from the inner side wall of the fixed shell (17) is fixedly connected to a worm (14), and the outer surface of the worm (14) is meshingly connected with the outer surface of the worm wheel (13).

4. A gaseous membrane deammoniation experimental device according to claim 1, characterized in that: A filter device (18) is fixedly connected to the right surface of the sedimentation tank (7), a stop valve (6) is fixedly connected to the right end surface of the filter device (18) via a pipeline, and a gas membrane device (19) is fixedly connected to the right end surface of the stop valve (6) on the right side of the filter device (18) via a pipeline.

5. A gaseous membrane deammoniation experimental device according to claim 1, characterized in that: The upper surface of the sedimentation tank (7) is fixedly connected to a pipeline channel (10), the upper surface of the channel (10) is rotatably connected to a rotating shaft (8), the upper surface of the rotating shaft (8) is rotatably connected to a cover door (9), and the cover door (9) can be vertically turned relative to the sedimentation tank (7) with the rotating shaft (8) as the axis.

6. A gaseous membrane deammoniation experimental device according to claim 1, characterized in that: An absorption liquid inlet (20) is fixedly connected to the upper surface of the gaseous membrane device (19), and an outlet pipe (21) is fixedly connected to the right side of the absorption liquid inlet (20).

7. A gaseous membrane deammoniation experimental device according to claim 3, characterized in that: The motor (16) is fixedly connected to the outer surface of the fixed housing (17).

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