Tail gas absorption treatment device
By designing the closed chamber, intake pipe, outlet pipe and check valve in the exhaust gas absorption and treatment device, the poor adsorption effect and inverted suction problems are solved, efficient exhaust gas treatment is achieved, and the safety and stability of the device are enhanced.
Patent Information
- Application Number
- CN202422583204.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-24
AI Technical Summary
The existing exhaust gas absorption and treatment devices have problems such as poor adsorption effect, difficulty in filling, easy blockage and insufflation, especially in chemical experiments, which can easily lead to experimental failure or safety accidents.
An exhaust gas absorption and treatment device is designed, including a closed cavity, an intake pipe, an outlet pipe and a one-way valve. The porous packing layer has a gap between the first and second end walls of the closed cavity, and the intake pipe and the air outlet pipe are sealed and cooperated outside the closed cavity, combining a one-way valve to prevent inverting, thereby increasing the adsorption area and porosity of the packing.
It improves the filling efficiency, increases the adsorption area of the filler, reduces the exhaust gas resistance, significantly improves the adsorption treatment effect, and effectively prevents the occurrence of insuction.
Smart Images
Figure CN223287850U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical equipment, in particular to a tail gas absorption and treatment device used in the chemical field. Background Art
[0002] In the petroleum, chemical, and pharmaceutical production processes, drugs containing acidic solvents often emit highly corrosive gases such as hydrogen chloride and hydrogen bromide during drying. These acidic gases not only pollute the environment but also corrode other equipment in the production workshop, especially vacuum pumps during the reduced-pressure drying process, significantly shortening their service life and increasing maintenance costs.
[0003] In chemical experiments, various methods and devices are used to absorb harmful gases produced during the experiments. The absorption of highly water-soluble harmful gases such as ammonia, hydrogen chloride, and hydrogen bromide carries the risk of back-inhalation. Furthermore, existing laboratory devices have issues with absorbing waste gases (such as those that are harmful to the environment and the human body), such as the funnel being flush with the liquid surface or the funnel being tilted below the liquid surface, making it difficult to manipulate.
[0004] Backflow is a common and undesirable phenomenon in chemistry experiments. Depending on the experiment, backflow can lead to interruption or failure, necessitating a retry. Furthermore, chemistry experiments often require the production of flammable gases such as hydrogen, methane, ethylene, and acetylene. However, if a certain amount of air is mixed into these gases, an explosion can occur, causing safety hazards, harming experimenters, and compromising experimental results.
[0005] Therefore, it is indispensable to use equipment for tail gas absorption treatment. However, in traditional tail gas absorption treatment equipment, due to unreasonable design, it has problems such as poor adsorption effect, difficulty in filling and replacing fillers, easy clogging and even backflow.
[0006] Therefore, a tail gas absorption treatment device is needed to overcome one or more of the above-mentioned defects. Utility Model Content
[0007] The purpose of the utility model is to provide a tail gas absorption and treatment device which can prevent backflow and has good adsorption effect.
[0008] To achieve the above-mentioned purpose, the exhaust gas absorption treatment device of the present invention includes a closed cavity, an air inlet pipe, an air outlet pipe, a one-way valve, and a porous filler layer filled in the internal space of the closed cavity. A first gap is formed between the porous filler layer and the first end wall of the closed cavity, and a second gap is formed between the porous filler layer and the second end wall opposite to the closed cavity. The air inlet pipe penetrates the closed cavity in a sealed manner outside the closed cavity and extends into the first gap; the one-way valve is provided on the air inlet pipe, and the one-way valve prevents the gas in the closed cavity from flowing back outward along the air inlet pipe; the air outlet pipe penetrates the closed cavity in a sealed manner outside the closed cavity and extends into the second gap.
[0009] Compared with the prior art, since the porous filler layer is filled in the internal space of the closed cavity, and has a first gap and a second gap corresponding to the first end wall and the second end wall of the closed cavity respectively, combined with the design of "the air inlet pipe is sealed and fits into the closed cavity outside the closed cavity and extends into the first gap, and the air outlet pipe is sealed and fits into the closed cavity outside the closed cavity and extends into the second gap", the exhaust gas absorption treatment device of the present invention can improve the filling efficiency, increase the filler adsorption area, increase the porosity of the porous filler layer, reduce the exhaust gas resistance, and greatly improve the adsorption treatment effect; at the same time, with the help of a one-way valve, the backflow problem can be effectively prevented.
[0010] Preferably, the air outlet pipe is also inserted into the porous filler layer.
[0011] Preferably, the porous filler layer is a porous suspended filler ball layer, the porous suspended filler ball layer comprises a plurality of porous suspended filler balls, and the porous suspended filler balls are filled with adsorbent.
[0012] Preferably, the adsorbent is molecular sieve, granular silica gel, granular activated carbon or sodium hydroxide flakes.
[0013] Preferably, the silica gel particles are colorless and spherical.
[0014] Preferably, the closed cavity comprises a cylinder, a cover assembled and connected to the cylinder, and a sealing ring assembled between the cylinder and the cover, and the air inlet pipe and the air outlet pipe are respectively placed in the cover.
[0015] Preferably, the cylinder and the cover are detachably connected by means of a clamp;
[0016] Preferably, the cylinder includes a cylinder body and a blind plate, one end of the cylinder body is detachably connected to the cover body by the clamp, and the other end of the cylinder body is also detachably connected to the blind plate by the clamp, a seal is provided between the blind plate and the cylinder body, and the blind plate forms the second end wall of the closed cavity.
[0017] Preferably, the clamp includes a screwing operating member and two arc-shaped buckles with their head ends hinged to each other and their tail ends joined side by side. The screwing operating member is inserted into the tail ends of the buckles, and the buckles are tightened or loosened by the screwing operation of the screwing operating member.
[0018] Preferably, the air intake pipe includes a first air intake pipe body, a second air intake pipe body and an air intake connecting flange, the first air intake pipe body is located outside the closed cavity, the second air intake pipe body is located in the first gap, the air intake connecting flange is fixedly inserted into the cover body, and the air intake connecting flange is also respectively connected to the first air intake pipe body and the second air intake pipe body, and the one-way valve is arranged on the first air intake pipe body.
[0019] Preferably, the air outlet pipe includes a first air outlet pipe body located outside the closed cavity, a second air outlet pipe body inserted in the porous filler layer, and an air outlet connecting flange fixedly inserted in the cover body, one end of the second air outlet pipe body extends into the second gap, the other end of the second air outlet pipe body extends into the first gap and is assembled and connected to the air outlet connecting flange, and the first air outlet pipe body is assembled and connected to the air outlet connecting flange.
[0020] Preferably, the exhaust gas absorption treatment device of the present invention further includes an air intake distribution pipe located in the first gap and connected to the air intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a plan view showing the exhaust gas absorption treatment device of the present invention.
[0022] Figure 2 is a plan view showing the clamp.
[0023] Figure 3 is a plan view showing the porous suspended filler spheres. DETAILED DESCRIPTION
[0024] In order to explain the technical content and structural features of the present invention in detail, the following is a further description in conjunction with the embodiments and the accompanying drawings.
[0025] See also Figure 1As an example, the exhaust gas absorption treatment device 100 of the present invention includes a closed cavity 10, an air inlet pipe 20, an air outlet pipe 30, a one-way valve 40, a porous packing layer 50 filled in the internal space 11 of the closed cavity 10, and an air intake distribution pipe 60 connected to the air inlet pipe 20; optionally, as an example, the porous packing layer 50 is a porous suspended packing ball layer, such a design can further improve the packing efficiency of the packing and the packing balls, further increase the packing adsorption area, further increase the porosity of the porous packing layer 50, further reduce the exhaust resistance, and thus further improve the adsorption treatment effect; obviously, according to actual needs, the porous packing layer 50 can also be other structures.
[0026] At the same time, the porous filler layer 50 and the first end wall 12 (eg Figure 1 There is a first gap 13 between the porous filler layer 50 and the second end wall 10a2 (eg, the upper end wall in the closed cavity 10) opposite to the closed cavity 10. Figure 1 There is a second gap 15 between the lower end wall in the closed cavity 10. The air inlet pipe 20 penetrates the closed cavity 10 in a sealed manner outside the closed cavity 10 to ensure that the fitting of the air inlet pipe 20 and the closed cavity 10 is sealed, thereby preventing leakage; the air inlet pipe 20 also extends into the first gap 13 to meet the need that the gas entering from the air inlet pipe 20 first flows to the first gap 13 of the closed cavity 10 and then diffuses to the porous filler layer 50. The air outlet pipe 30 penetrates the closed cavity 10 in a sealed manner outside the closed cavity 10 to ensure that the fitting of the air outlet pipe 30 and the closed cavity 10 is sealed, thereby preventing leakage; the air outlet pipe 30 also extends into the second gap 15 to meet the need that the gas processed by the porous filler layer 50 is discharged outward through the air outlet pipe 30; optionally, Figure 1 As an example, the air outlet pipe 30 is also passed through the porous packing layer 50, which can prevent the air outlet pipe 30 from being designed into a curved shape due to avoiding the porous packing layer 50. The one-way valve 40 is provided on the air inlet pipe 20, and the one-way valve 40 blocks the gas in the closed cavity 10 from flowing back outward along the air inlet pipe 20, effectively preventing backflow. The air intake distribution pipe 60 is located in the first gap 13, so that the gas entering from the air intake pipe 20 flows to different positions of the first gap 13 through the air intake distribution pipe 60, thereby improving the gas treatment effect of the porous packing layer 50. It should be noted that the air intake distribution pipe 60 can be deleted according to actual needs, so it is not included in the description. Figure 1 More specifically, as follows:
[0027] Combine Figure 1 and Figure 3As an example, the porous suspended filler ball layer includes a plurality of porous suspended filler balls 51, and the interior of the porous suspended filler balls 51 is filled with an adsorbent 511 to improve the water removal capacity; optionally, as an example, the adsorbent 511 can be a molecular sieve, granular silica gel, granular activated carbon or sodium hydroxide flake alkali to further improve the water removal capacity. For example, granular silica gel is a colorless sphere, but is not limited to this. Among them, by using the adsorbent 511 as a molecular sieve, granular silica gel or granular activated carbon, the filling efficiency of the filler and the filler balls can be more effectively improved, the adsorption area of the filler can be more effectively increased, the porosity of the porous filler layer 50 can be more effectively increased, and the exhaust gas resistance can be more effectively reduced.
[0028] like Figure 1 As shown, as an example, the closed cavity 10 includes a cylinder 10a, a cover 10b assembled and connected to the cylinder 10a, and a sealing ring 10c assembled between the cylinder 10a and the cover 10b; Figure 2 As an example, the cylinder 10a and the cover 10b are detachably connected by means of a clamp 60, so as to improve the convenience of disassembly and installation of the tail gas absorption treatment device 100 of the present invention and reduce the labor intensity of the operator and maintenance worker. Figure 1 As an example, the cylinder 10a includes a cylinder body 10a1 and a blind plate 10a2. One end of the cylinder body 10a1 is detachably connected to the cover body 10b by means of a clamp 60, and the other end of the cylinder body 10a1 is also detachably connected to the blind plate 10a2 by means of a clamp 60, so as to further improve the convenience of disassembly and installation of the exhaust gas absorption treatment device 100 of the present invention; in addition, a seal 10a3 is provided between the blind plate 10a2 and the cylinder body 10a1 to prevent leakage between the blind plate 10a2 and the cylinder body 10a1. Correspondingly, the blind plate 10a2 forms the second end wall of the closed cavity 10, that is, the second end wall and the blind plate have the same figure number, both 10a2. More specifically, in Figure 2As an example, the clamp 60 includes a screw operating member 61 and two arc-shaped buckles 62 with their head ends 621 hinged to each other and their tail ends 622 joined side by side; the screw operating member 61 is inserted into the tail end 622 of the buckle 62; the buckle 62 is tightened or loosened by the screwing operation of the screw operating member 61, which more effectively facilitates the operator to disassemble and install the exhaust gas absorption treatment device 100 of the present invention. It should be noted that since the blind plate 10a2 and the cylinder body 10a1 are assembled and connected by the clamp 60, and the cylinder body 10a1 and the cover body 10b are assembled and connected by the clamp 60, that is, a clamp 60 is provided between the blind plate 10a2 and the cylinder body 10a1 and between the cylinder body 10a1 and the cover body 10b. When the closed cavity 10 includes a cylinder 10a, a cover 10b and a sealing ring 10c, the air inlet pipe 20 and the air outlet pipe 30 are correspondingly inserted into the cover 10b so that the air inlet pipe 20 and the air outlet pipe 30 enter the closed cavity 10 from the same position of the closed cavity 10.
[0029] like Figure 1 As shown, as an example, the air intake duct 20 includes a first air intake pipe body 21, a second air intake pipe body 22, and an air intake connecting flange 23. The first air intake pipe body 21 is located outside the enclosed cavity 10, and the second air intake pipe body 22 is located in the first gap 13. The air intake connecting flange 23 is fixedly inserted into the cover 10b and is connected to the first air intake pipe body 21 and the second air intake pipe body 22, respectively. This facilitates assembly and disassembly between the cover 10b and the first and second air intake pipe bodies 21, 22, respectively, through the air intake connecting flange 23. It should be noted that when the air intake duct 20 includes the first air intake pipe body 21, the second air intake pipe body 22, and the air intake connecting flange 23, the one-way valve 40 is provided on the first air intake pipe body 21.
[0030] Another example Figure 1 As shown, the air outlet duct 30 includes a first air outlet pipe body 31 located outside the enclosed cavity 10, a second air outlet pipe body 32 inserted into the porous filler layer 50, and an air outlet connecting flange 33 fixedly inserted into the cover 10b. One end of the second air outlet pipe body 32 extends into the second gap 15, while the other end of the second air outlet pipe body 32 extends into the first gap 13 and is assembled and connected to the air outlet connecting flange 33. The first air outlet pipe body 31 is assembled and connected to the air outlet connecting flange 33. This facilitates assembly and disassembly between the cover 10b and the first and second air outlet pipe bodies 31, 32, respectively, thanks to the air outlet connecting flange 33.
[0031] Compared with the prior art, since the porous filler layer 50 is filled in the internal space 11 of the closed cavity 10, and has a first gap 13 and a second gap 15 corresponding to the first end wall 12 and the second end wall 10a2 of the closed cavity 10 respectively, combined with the design of "the air inlet pipe 20 is sealed and fits into the closed cavity 10 outside the closed cavity 10 and extends into the first gap 13, and the air outlet pipe 30 is sealed and fits into the closed cavity 10 outside the closed cavity 10 and extends into the second gap 15", the exhaust gas absorption treatment device 100 of the present invention can improve the filling efficiency, increase the filler adsorption area, increase the porosity of the multi-layer porous filler layer 50, reduce the exhaust gas resistance, and greatly improve the adsorption treatment effect; at the same time, with the help of the one-way valve 40, the backflow problem can be effectively prevented.
[0032] It is worth noting that since the exhaust gas absorption treatment device 100 of the present invention is used for exhaust gas absorption treatment in the chemical industry, the closed cavity 10, the air inlet pipe 20, the air outlet pipe 30, the clamp 60 and the air inlet distribution pipe 70 are all made of stainless steel; in addition, the porous suspended filler balls in the porous filler layer 50 can be made of plastic.
[0033] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope covered by the present invention.
Claims
1. A tail gas absorption treatment device, comprising a closed cavity, an air inlet pipe and an air outlet pipe, characterized in that: The exhaust gas absorption treatment device also includes a one-way valve and a porous filler layer filled in the internal space of the closed cavity, a first gap is provided between the porous filler layer and the first end wall of the closed cavity, a second gap is provided between the porous filler layer and the second end wall opposite to the closed cavity, the air intake pipe is sealed and fits into the closed cavity outside the closed cavity and extends into the first gap, the one-way valve is provided on the air intake pipe, the one-way valve prevents the gas in the closed cavity from flowing back outward along the air intake pipe, and the air outlet pipe is sealed and fits into the closed cavity outside the closed cavity and extends into the second gap.
2. The tail gas absorption treatment device according to claim 1, characterized in that: The air outlet pipe is also inserted into the porous filler layer.
3. The tail gas absorption treatment device according to claim 1, characterized in that: The porous filler layer is a porous suspended filler ball layer, which includes a plurality of porous suspended filler balls, and the porous suspended filler balls are filled with adsorbent.
4. The tail gas absorption treatment device according to claim 3, characterized in that: The adsorbent is molecular sieve, granular silica gel, granular activated carbon or sodium hydroxide flakes.
5. The tail gas absorption treatment device according to claim 4, characterized in that: The granular silica gel is in the shape of a colorless sphere.
6. The tail gas absorption treatment device according to claim 1, characterized in that: The closed cavity comprises a cylinder, a cover connected to the cylinder, and a sealing ring assembled between the cylinder and the cover. The air inlet pipe and the air outlet pipe are respectively passed through the cover.
7. The tail gas absorption treatment device according to claim 6, characterized in that: The cylinder body and the cover body are detachably connected by means of a clamp.
8. The tail gas absorption treatment device according to claim 7, characterized in that: The cylinder includes a cylinder body and a blind plate, one end of the cylinder body is detachably connected to the cover body by the clamp, and the other end of the cylinder body is also detachably connected to the blind plate by the clamp, a sealing member is provided between the blind plate and the cylinder body, and the blind plate forms the second end wall of the closed cavity; the clamp includes a screwing operating member and two arc-shaped buckles with their head ends hinged to each other and their tail ends connected side by side, the screwing operating member is inserted into the tail end of the buckle, and the buckle is locked or released by the screwing operation of the screwing operating member.
9. The tail gas absorption treatment device according to claim 6, characterized in that: The air intake pipe includes a first air intake pipe body, a second air intake pipe body and an air intake connecting flange, the first air intake pipe body is located outside the closed cavity, the second air intake pipe body is located in the first gap, the air intake connecting flange is fixedly inserted into the cover body, the air intake connecting flange is also respectively connected to the first air intake pipe body and the second air intake pipe body, and the one-way valve is provided on the first air intake pipe body; the air outlet pipe includes a first air outlet pipe body located outside the closed cavity, a second air outlet pipe body inserted in the porous filler layer and an air outlet connecting flange fixedly inserted in the cover body, one end of the second air outlet pipe body extends into the second gap, the other end of the second air outlet pipe body extends into the first gap and is assembled and connected to the air outlet connecting flange, and the first air outlet pipe body is assembled and connected to the air outlet connecting flange.
10. The tail gas absorption treatment device according to claim 1, characterized in that: The invention also includes an air intake distribution pipe located in the first gap and connected to the air intake duct.