Disc distributor for biopharmaceutical waste gas treatment

Abstract

The present application relates to a kind of disc distributors, in particular to a kind of disc distributors for biopharmaceutical waste gas treatment.A kind of disc distributor for biopharmaceutical waste gas treatment, including layout device, reaction liquid distribution device and spraying device;The layout device includes support frame and multiple support beams;The reaction liquid distribution device includes liquid collecting tank, first partial pressure tank, drainage pipe, lift pipe and second partial pressure tank;The spraying device includes water inlet pipe and spray head.The purpose of the present application is to more evenly, high efficiency to the reaction liquid required by the packing layer in spray tower is shunted.

Description

Technical Field

[0001] This invention relates to a disc distributor, and more particularly to a disc distributor for treating waste gas in biopharmaceutical manufacturing. Background Technology

[0002] Volatile organic compounds (VOCs) can be generated in my country's pharmaceutical manufacturing industry during extraction, refining, distillation, storage and transportation. In addition, the waste gas contains complex components such as pharmaceutical dust particles, fermentation tail gas, acid and alkali waste gas, and malodorous substances, which pose certain difficulties for the treatment of process waste gas.

[0003] In environmental engineering, absorption is a crucial method for controlling air pollutants. Liquid absorption utilizes the principle of similarity and solubility between liquid absorbents and inorganic / organic waste gases to treat organic waste gases. This method can not only treat large quantities of gaseous pollutants but also absorb and regenerate some of them to obtain enriched organic matter. After regeneration or purification, this enriched organic matter can be sold externally or recycled within production units. Absorption technology for treating gaseous pollutants is mature, with rich design and operational experience, and strong applicability. Therefore, it is widely used in air pollution control. This technology generally uses low-volatility or non-volatile liquids as absorbents or acid-washed neutralization absorbents. The absorption device utilizes the differences in solubility or chemical reaction characteristics of various components in the waste gas within the absorbent to absorb harmful components, thereby purifying the waste gas. Absorption methods also utilize the different solubilities and chemical reactions of different components in a gas mixture within a specific absorbent, achieving separation of the gas mixture through repeated action of the absorbent.

[0004] In the absorption method, waste gas typically enters the absorption spray tower from the bottom and exits from the top. A circulating pump delivers the absorbent liquid to the liquid distributor at the top of the tower, spraying it onto the surface of the packing material. Within the packing layer, the absorbent liquid forms a liquid film due to the action of the packing material. This liquid film comes into full contact with the rising gas, thereby removing pollutants from the gas. Employing a counter-phase gas-liquid exchange method enhances gas-liquid contact mass transfer and improves absorption efficiency.

[0005] However, the spray liquid distribution in existing VOCs treatment absorption towers is uneven, and the spray liquid is tilted or rolled back due to wind speed. It is necessary to pressurize it to form a high-pressure spray. High-pressure spraying will also cause scouring and impact on the packing layer, resulting in displacement or grooves, which will lead to flow deviation or short circuit, causing inconsistent gas-liquid contact time and affecting absorption efficiency. Large spray volume will also lead to obvious gas-liquid entrainment and serious absorption liquid loss. The increase in spray volume and pressure will directly lead to an increase in the installed power of the circulating pump, and the energy consumption of the system will increase accordingly. Summary of the Invention

[0006] In view of this, the present invention provides a disc distributor for treating waste gas in biopharmaceutical manufacturing. The purpose is to more uniformly and efficiently distribute the reaction liquid required by the packing layer within the spray tower.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A disc distributor for treating waste gas in biopharmaceutical manufacturing includes a distribution device, a reaction liquid distribution device, and a spraying device. The distribution device includes a support frame and multiple support beams. The support frame is fixedly positioned at the center of the cross-section of a spraying tower, and the multiple support beams are evenly distributed on the support frame. The reaction liquid distribution device is movably connected to the spraying tower via the support beams. The reaction liquid distribution device includes a collection tank, a first pressure-distributing tank, a guide pipe, a riser pipe, and a second pressure-distributing tank. The bottom of the collection tank is designed with an obtuse angle. The first pressure-distributing tank is correspondingly positioned below the collection tank, with both ends positioned below the two ends of the collection tank. The first pressure-distributing tank is a horizontally positioned groove at its bottom. An even number of riser pipes are provided. Installed at both ends of the bottom of the first pressure-distributing groove, the guide pipe is sleeved around the gas riser pipe. The bottom of the first pressure-distributing groove is provided with a first diversion hole corresponding to the outer diameter of the guide pipe. The guide pipe is provided with multiple second diversion holes. The second pressure-distributing groove is located on the outer side of the bottom of the guide pipe. The second pressure-distributing groove is a horizontal groove at the bottom. A snap-fit ​​device is provided at the end away from the guide pipe. The two reaction liquid distribution devices are movably connected through the snap-fit ​​device of the second pressure-distributing groove. The bottom of the second pressure-distributing groove is provided with multiple third diversion holes. The spray device includes an inlet pipe and spray heads. The inlet pipe is erected above the reaction liquid distribution device. Multiple spray heads are evenly distributed on the inlet pipe corresponding to the collection groove.

[0009] Preferably, the snap-fit ​​device includes a U-shaped snap-fit ​​groove, a C-shaped snap-fit ​​groove, and a wedge block. The U-shaped snap-fit ​​groove is located at the bottom of the second pressure-dividing groove on the side away from the drainage pipe, and the C-shaped snap-fit ​​groove is located at the bottom of the second pressure-dividing groove on the other side away from the drainage pipe. The two reaction liquid distribution devices are connected by the combination of the U-shaped snap-fit ​​groove and the C-shaped snap-fit ​​groove. The wedge block is inserted into the remaining space of the C-shaped snap-fit ​​groove after the two reaction liquid distribution devices are snapped together to wedge and fix the connection between the two reaction liquid distribution devices. The wedge block and the remaining space of the C-shaped snap-fit ​​groove are connected by clearance fit or interference fit.

[0010] Preferably, a guide plate is provided on the outer edge of the upper part of the liquid collection tank.

[0011] Preferably, the first pressure-dividing groove is provided with horizontal ribs.

[0012] Preferably, the support beam is provided with multiple pressure plates.

[0013] Preferably, the support beams are arranged in a ring-pipe or pipe-line configuration.

[0014] Preferably, the reaction solution is water or an organic solution.

[0015] Preferably, the liquid collection tank is V-shaped, M-shaped, or concave arc-shaped.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention includes a distribution device, a reaction liquid distribution device, and a spraying device. The separate arrangement of these three components facilitates the disassembly and replacement of the disc distributor. The distribution device includes a support frame and multiple support beams. The support frame is fixedly positioned at the center of the spray tower's cross-section, and the multiple support beams are evenly distributed on the support frame. This arrangement helps maintain the overall balance of the disc distributor, ensuring its stable placement within the spray tower. The reaction liquid distribution device is movably connected to the spray tower via the support beams, facilitating inspection, disassembly, and replacement by workers. The bottom of the collection tank has an obtuse angle design, increasing the contact area between the collection tank and the reaction liquid, thus increasing the collection rate. This allows the reaction liquid sprayed from the spray head to be effectively buffered and diverted. The collection tank changes the airflow direction and guides the airflow, preventing secondary entrainment caused by direct blowing to the demister. Simultaneously, the blocking and impacting effect of the collection tank rapidly decelerates the airflow, allowing the trapped liquid to pass through... The impact and collection of the liquid reduces gas-liquid entrainment, resulting in better demisting efficiency. The first pressure-distributing groove is positioned below the liquid collection groove, with both ends of the first pressure-distributing groove located below both ends of the liquid collection groove. This design allows the reaction liquid to flow fully from the liquid collection groove into the first pressure-distributing groove. The first pressure-distributing groove is a horizontally positioned groove at the bottom, which increases the collection rate of the first pressure-distributing groove and prevents flow interruption during the diversion of the reaction liquid. The riser pipes are arranged in pairs and installed at both ends of the bottom of the first pressure-distributing groove. The guide pipe is sleeved around the riser pipe. This design not only makes the structure between adjacent guide pipes more compact but also increases the utilization rate of the distributed liquid. The bottom of the first pressure-distributing groove has a first diversion hole corresponding to the outer diameter of the guide pipe. The guide pipe has multiple second diversion holes. The second pressure-distributing groove is located on the outer bottom of the guide pipe, and the bottom of the second pressure-distributing groove has multiple third diversion holes. This design allows the reaction liquid to undergo multi-stage diversion in the reaction liquid distribution device, thereby making the reaction liquid entering the packing layer more even and sufficient.

[0018] 2. The snap-fit ​​device of the present invention includes a U-shaped snap-fit ​​groove, a C-shaped snap-fit ​​groove, and a wedge block. The U-shaped snap-fit ​​groove is located at the bottom of the second pressure-distributing groove on the side away from the drainage pipe, and the C-shaped snap-fit ​​groove is located at the bottom of the second pressure-distributing groove on the other side away from the drainage pipe. The two reaction liquid distribution devices are connected by a combination of the U-shaped snap-fit ​​groove and the C-shaped snap-fit ​​groove. Compared with the previous bolt connection, this snap-fit ​​device has the advantages of convenient disassembly and assembly and strong fixation, while avoiding the disadvantages of bolt connection being prone to rust and damage. It is convenient for workers to assemble the appropriate distribution liquid distribution device according to the actual shape requirements, and also provides convenience for the replacement of damaged components. The wedge block is inserted into the remaining space of the C-shaped snap-fit ​​groove after the two reaction liquid distribution devices are snapped together, and wedges and fixes the connection between the two reaction liquid distribution devices. This setting makes the snap-fit ​​between the two reaction liquid distribution devices more stable. The wedge block and the remaining space of the C-shaped snap-fit ​​groove are connected by clearance fit or interference fit. This setting makes the fit between the wedge block and the C-shaped snap-fit ​​groove stable and avoids relative sliding between the two reaction liquid distribution devices during use.

[0019] 3. The outer edge of the upper part of the liquid collection tank of the present invention is provided with a guide plate. This arrangement allows the reaction liquid flowing out of the spray device to be guided more fully and evenly into the reaction liquid distribution device, thereby allowing the reaction liquid after being diverted by the disc distributor to penetrate into the packing layer more evenly.

[0020] 4. The first pressure-dividing groove of the present invention is provided with a horizontal rib. The horizontal rib increases the strength and toughness of the first pressure-dividing groove and reduces the probability of deformation of the first pressure-dividing groove during use.

[0021] 5. The support beam of the present invention is provided with multiple pressure plates, which enhances the strength and toughness of the support beam and reduces the probability of stress deformation of the support beam.

[0022] 6. The support beams of this invention are arranged in a ring pipe or a row pipe arrangement, and workers can install the arrangement device according to actual needs.

[0023] 7. The reaction solution of this invention is water or an organic solution. Workers can introduce different reaction solutions into the spraying device according to the actual needs of the packing layer.

[0024] 8. The liquid collection tank of this invention is V-shaped, M-shaped or concave arc-shaped. All three shapes of liquid collection tanks have a good collection and distribution effect on the reaction liquid sprayed by the spraying device. Workers can choose the appropriate liquid collection tank for installation and use according to specific needs.

[0025] Figure 1 This is a schematic diagram (top view) of the structure of the present invention.

[0026] Figure 2 This is a schematic diagram (cross-sectional view) of the reaction liquid distribution device in Example 1.

[0027] Figure 3 This is a schematic diagram (cross-sectional view) of the reaction liquid distribution device in Example 2.

[0028] Figure 4 This is a schematic diagram of the first pressure-distributing groove (top view).

[0029] Figure 5 for Figure 2 and Figure 3 An enlarged schematic diagram of part A in the middle.

[0030] Reference numerals: 1: Layout device, 2: Reaction liquid distribution device, 3: Support frame, 4: Support beam, 5: Liquid collection tank, 6: First pressure distribution tank, 7: Drainage pipe, 8: Gas riser pipe, 9: Second pressure distribution tank, 10: First diversion hole, 11: Second diversion hole, 12: Third diversion hole, 13: U-shaped slot, 14: C-shaped slot, 15: Wedge block, 16: Guide plate, 17: Horizontal rib, 18: Pressure plate.

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] like Figure 1 , Figure 2 , Figure 3As shown, a disc distributor for treating waste gas in biopharmaceutical manufacturing includes a distribution device, a reaction liquid distribution device, and a spraying device. The distribution device includes a support frame and multiple support beams. The support frame is fixedly positioned at the center of the cross-section of a spraying tower, and the multiple support beams are evenly distributed on the support frame. The reaction liquid distribution device is movably connected to the spraying tower via the support beams. The reaction liquid distribution device includes a collection tank, a first pressure-distributing tank, a guide pipe, a riser pipe, and a second pressure-distributing tank. The bottom of the collection tank is designed with an obtuse angle. The first pressure-distributing tank is correspondingly positioned below the collection tank, and its two ends are positioned below the two ends of the collection tank. The first pressure-distributing tank is a horizontally positioned groove at the bottom. The riser pipes are arranged in even numbers. The first pressure distribution device is installed at both ends of the bottom of the first pressure distribution tank. The drainage pipe is sleeved around the gas riser. The bottom of the first pressure distribution tank is provided with a first diversion hole corresponding to the outer diameter of the drainage pipe. The drainage pipe is provided with multiple second diversion holes. The second pressure distribution tank is located on the outer side of the bottom of the drainage pipe. The second pressure distribution tank is a groove with a horizontal bottom. A snap-fit ​​device is provided at the end away from the drainage pipe. The two reaction liquid distribution devices are movably connected through the snap-fit ​​device of the second pressure distribution tank. The bottom of the second pressure distribution tank is provided with multiple third diversion holes. The spray device includes an inlet pipe and spray heads. The inlet pipe is erected above the reaction liquid distribution device. Multiple spray heads are evenly distributed on the inlet pipe corresponding to the liquid collection tank.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the disc distributor includes a distribution device, a reaction liquid distribution device, and a spraying device. The separate arrangement of these three components facilitates disassembly and replacement. The distribution device includes a support frame and multiple support beams. The support frame is fixed at the center of the spray tower's cross-section, and the multiple support beams are evenly distributed on the support frame. This arrangement helps maintain the overall balance of the disc distributor, ensuring its stable placement within the spray tower. The reaction liquid distribution device is movably connected to the spray tower via the support beams, facilitating inspection, disassembly, and replacement by workers. The bottom of the collection tank has an obtuse angle design, increasing the contact area between the collection tank and the reaction liquid, thus increasing the collection rate. This allows for effective buffering and diversion of the reaction liquid sprayed from the spray head. The collection tank also changes the airflow direction, guiding the airflow and preventing secondary entrainment caused by direct blowing to the demister. Simultaneously, the blocking and impacting effect of the collection tank rapidly decelerates the airflow, preventing entrainment of the reaction liquid. The liquid is collected and falls due to impact, reducing gas-liquid entrainment and improving demisting efficiency. The first pressure-distributing groove is located below the liquid collection groove, with both ends of the first pressure-distributing groove positioned below both ends of the liquid collection groove. This arrangement allows the reaction liquid to flow fully from the liquid collection groove into the first pressure-distributing groove. The first pressure-distributing groove is a horizontally positioned groove at the bottom, which increases the collection rate of the first pressure-distributing groove and prevents flow interruption during the diversion of the reaction liquid. The riser pipes are arranged in pairs and installed at both ends of the bottom of the first pressure-distributing groove. The guide pipe is sleeved around the riser pipe. This arrangement not only makes the structure between adjacent guide pipes more compact but also increases the utilization rate of the distributed liquid. The bottom of the first pressure-distributing groove has a first diversion hole corresponding to the outer diameter of the guide pipe. The guide pipe has multiple second diversion holes. The second pressure-distributing groove is located on the outer bottom of the guide pipe, and the bottom of the second pressure-distributing groove has multiple third diversion holes. This arrangement allows the reaction liquid to undergo multi-stage diversion in the reaction liquid distribution device, thereby making the reaction liquid entering the packing layer more even and sufficient.

[0036] like Figure 1 As shown, the support beam is provided with multiple pressure plates. This arrangement enhances the strength and toughness of the support beam and reduces the probability of stress deformation.

[0037] like Figure 1 As shown, the support beams are arranged in either a ring pipe or a row pipe arrangement, and workers can install the arrangement device according to actual needs.

[0038] like Figure 1 , Figure 2 , Figure 3 As shown, a guide plate is provided on the outer edge of the upper part of the liquid collection tank. This arrangement allows the reaction liquid flowing out of the spray device to be guided more fully and evenly into the reaction liquid distribution device, thereby allowing the reaction liquid after being diverted by the disc distributor to penetrate into the packing layer more evenly.

[0039] like Figure 1 , Figure 2 , Figure 3 As shown, the first pressure dividing groove is provided with horizontal ribs. The horizontal ribs increase the strength and toughness of the first pressure dividing groove and reduce the probability of deformation during use.

[0040] like Figure 1 , Figure 2 , Figure 3 As shown, the collection tank is V-shaped, M-shaped, or concave arc-shaped. All three shapes of collection tanks have a good collection and distribution effect on the reaction liquid sprayed by the spraying device. Workers can choose the appropriate collection tank for installation and use according to specific needs.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the snap-fit ​​device includes a U-shaped slot, a C-shaped slot, and a wedge block. The U-shaped slot is located at the bottom of the second pressure-distributing groove on the side away from the drainage pipe, and the C-shaped slot is located at the bottom of the second pressure-distributing groove on the other side away from the drainage pipe. The two reaction liquid distribution devices are connected by a combination of the U-shaped slot and the C-shaped slot. Compared with the previous bolt connection, this snap-fit ​​device has the advantages of convenient assembly and disassembly and strong fixation, while avoiding the disadvantages of bolt connection being prone to rust and damage. It also facilitates workers to assemble suitable distribution liquid distribution devices according to actual shape requirements and provides convenience for the replacement of damaged components. The wedge block is inserted into the remaining space of the C-shaped slot after the two reaction liquid distribution devices are snapped together to wedge and fix the connection between the two reaction liquid distribution devices. This setting makes the snap-fit ​​of the two reaction liquid distribution devices more stable. The wedge block and the remaining space of the C-shaped slot are connected by a clearance fit or an interference fit. This setting makes the fit between the wedge block and the C-shaped slot stable and avoids relative sliding between the two reaction liquid distribution devices during use.

[0042] The specific operating principle is as follows:

[0043] When using this disc distributor, first, fix the support frame with evenly distributed support beams at the center of the spray tower's cross-section. Then, connect the multiple sets of reaction liquid distribution devices that are locked together to the support beams. Finally, install the spray device above the reaction liquid distribution device. Turn on the spray device and introduce the reaction liquid into the inlet pipe of the spray device. The reaction liquid gradually flows down with the spray head, is collected in the collection tank, and flows down through the first diversion hole into the guide pipe due to gravity. Part of the reaction liquid in the guide pipe flows down with gravity and seeps into the packing layer. The other part of the reaction liquid flows out from the second diversion and enters the second pressure tank along the outer wall of the guide pipe. Finally, it flows down through the third diversion hole and seeps into the packing layer. The waste gas to be treated reacts with the packing layer that has been fully wetted by the reaction liquid and flows from bottom to top through the riser pipe into the next reaction stage. The reaction liquid undergoes multiple diversion and buffering stages during its seepage into the packing layer from the spray device, thereby achieving the effect of uniform seepage into the packing layer, low impact force, and low loss.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A disc distributor for treating waste gas in biopharmaceutical manufacturing, characterized in that, It includes a layout device, a reaction liquid distribution device, and a spraying device; the layout device includes a support frame and multiple support beams, the support frame is fixedly installed at the center of the cross-section of the spraying tower, the multiple support beams are evenly distributed on the support frame, and the reaction liquid distribution device is movably connected to the inside of the spraying tower through the support beams; The reaction liquid distribution device includes a collection tank, a first pressure-distributing tank, a guide pipe, a riser pipe, and a second pressure-distributing tank. The bottom of the collection tank is designed with an obtuse angle. The first pressure-distributing tank is correspondingly located below the collection tank, and both ends of the first pressure-distributing tank are located below both ends of the collection tank. The first pressure-distributing tank is a horizontally positioned groove at the bottom. The riser pipes are arranged in pairs and installed at both ends of the bottom of the first pressure-distributing tank. The guide pipe is sleeved around the riser pipe. The bottom of the first pressure-distributing tank has a first diversion hole corresponding to the outer diameter of the guide pipe. The guide pipe has multiple second diversion holes. The second pressure-distributing tank is located on the outer side of the bottom of the guide pipe. The second pressure-distributing tank is a horizontally positioned groove at the bottom, and a snap-fit ​​device is provided at the end away from the guide pipe. Two reaction liquid distribution devices are movably connected through the snap-fit ​​device of the second pressure-distributing tank. The bottom of the second pressure-distributing tank has multiple third diversion holes. The spraying device includes a liquid inlet pipe and spray heads. The liquid inlet pipe is installed above the reaction liquid distribution device, and multiple spray heads are evenly distributed on the liquid inlet pipe corresponding to the liquid collection tank. The snap-fit ​​device includes a U-shaped snap-fit ​​groove, a C-shaped snap-fit ​​groove, and a wedge block. The U-shaped snap-fit ​​groove is located at the bottom of the second pressure-dividing groove on the side away from the drainage pipe, and the C-shaped snap-fit ​​groove is located at the bottom of the second pressure-dividing groove on the other side away from the drainage pipe. The two reaction liquid distribution devices are connected by the combination of the U-shaped snap-fit ​​groove and the C-shaped snap-fit ​​groove. The wedge block is inserted into the remaining space of the C-shaped snap-fit ​​groove after the two reaction liquid distribution devices are snapped together to wedge and fix the connection between the two reaction liquid distribution devices. The wedge block and the remaining space of the C-shaped snap-fit ​​groove are connected by clearance fit or interference fit. A guide plate is provided on the outer edge of the upper part of the liquid collection tank; The support beams are arranged in either a ring pipe or a row pipe configuration.

2. The disc distributor for treating biopharmaceutical waste gas according to claim 1, characterized in that, The first pressure-dividing groove is provided with horizontal ribs.

3. The disc distributor for treating biopharmaceutical waste gas according to claim 1, characterized in that, The support beam is equipped with multiple pressure plates.

4. A disc distributor for treating waste gas in biopharmaceutical manufacturing according to claim 1, characterized in that, The reaction solution is water or an organic solution.

5. A disc distributor for treating biopharmaceutical waste gas according to claim 1, characterized in that, The liquid collection tank is V-shaped, M-shaped, or concave arc-shaped.

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