Herringbone baffle plate group for improving mass transfer effect

Abstract

The utility model relates to the technical field of petrochemical industry, and discloses a herringbone baffle group for improving mass transfer effect, which comprises a main body, the upper side of the inner wall of the main body is fixedly connected with a bottom plate, the top wall of the bottom plate is fixedly connected with a plurality of vertical rings, and the front side of the inner wall of the main body is fixedly connected with uniformly distributed support plates. The rear ends of the multiple supporting plates are all fixedly connected to the rear side of the inner wall of the main body, the top walls of the multiple supporting plates are all provided with herringbone plates, the two sides of the inner wall of the main body are all fixedly connected with multiple flow guide plates, the herringbone plates on the upper side are all arranged between the adjacent vertical rings, and every two adjacent layers of herringbone plates are all arranged in a staggered mode in the vertical direction. According to the utility model, under the combined action of the main body, the vertical ring, the herringbone plate, the bottom plate and the supporting plate, liquid can uniformly overflow, and the liquid can be subjected to steam stripping under the action of the herringbone plate, so that the mass transfer effect can be improved, and the wax oil extraction rate can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical industry, in particular to a herringbone baffle group for increasing mass transfer effect. Background Art

[0002] In the petrochemical industry, towers are important equipment units with large quantities and wide applications. Towers are widely used in various operation units such as distillation, absorption, washing, and fractionation.

[0003] With the continuous improvement of my country's economy, energy conservation and environmental protection requirements for energy-intensive and polluting industries such as petrochemicals are becoming increasingly stringent. At the same time, companies themselves are pursuing maximum benefits. Therefore, whether it is oil refining units, petrochemical units or coal chemical plants, long-term operation and large-scale tower equipment have become an important development trend. As the requirements for large-scale towers and long-term tower operation continue to increase, the technical requirements for tower internals are also becoming increasingly stringent. Reasonable design of tower internals is a prerequisite for saving costs, ensuring stable and safe operation of the tower, and ensuring maximum production capacity and efficiency. In a slurry bed vacuum tower, the mass transfer effect of the stripping section directly affects the wax oil extraction rate of the tower, so it is extremely important that the herringbone baffles can play a good role. However, the vast majority of the liquid phase in the stripping section comes from the feed from the upper N1 port. Since this port is a gas-liquid two-phase feed and a single tangential circulation distributor is installed in the tower, the liquid mostly flows along the tower wall driven by the gas phase power. The herringbone baffle structure is an overlapping beam structure. The liquid flows down in the gap and cannot completely cover the surface of the herringbone baffles after passing through multiple layers of herringbone baffles, which affects the wax oil extraction rate. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a herringbone baffle group that increases the mass transfer effect, aiming to improve the problem in the prior art that the herringbone baffle surface cannot be completely covered after multiple layers of herringbone baffles, resulting in a problem in which the wax oil extraction rate is affected.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a herringbone baffle group for increasing the mass transfer effect, comprising a main body, an assembly and disassembly mechanism provided in the main body, a bottom plate fixedly connected to the upper side of the inner wall of the main body, a plurality of vertical rings fixedly connected to the top wall of the bottom plate, a uniformly distributed support plate fixedly connected to the front side of the inner wall of the main body, a plurality of rear ends of the support plates fixedly connected to the rear side of the inner wall of the main body, a plurality of herringbone plates provided on the top walls of the support plates, a plurality of guide plates fixedly connected to both sides of the inner wall of the main body, the upper herringbone plates arranged between adjacent vertical rings, and the two adjacent layers of herringbone plates staggered in the vertical direction.

[0006] As a further description of the above technical solution:

[0007] The assembly and disassembly mechanism includes a mounting block, multiple mounting blocks are fixedly connected to the bottom wall of the herringbone plate, multiple mounting blocks are slidably connected to the support plate, multiple top walls of the herringbone plates are rotatably connected to threaded rods, multiple bottom ends of the threaded rods pass through the mounting block and are threadedly connected to the movable plate, multiple sides of the movable plates are rotatably connected to connecting rods, multiple connecting rods are rotatably connected to an insertion rod at one end away from the movable plate, and multiple insertion rods pass through the support plate at one end away from the connecting rod.

[0008] As a further description of the above technical solution:

[0009] A plurality of tie bars are fixedly connected to the outer peripheries of the plurality of vertical rings, and the ends of the plurality of tie bars away from the vertical rings are fixedly connected to the inner wall of the main body.

[0010] As a further description of the above technical solution:

[0011] The plurality of herringbone plates and the top wall of the guide plate are all fixedly connected with overflow weirs, and the plurality of overflow weirs are tooth-shaped weirs or horizontal flow weirs and are arranged at the lower end of the liquid flow.

[0012] As a further description of the above technical solution:

[0013] Limit rods are provided on both sides of the plurality of threaded rods, and upper and lower ends of the plurality of limit rods pass through the movable plate and are fixedly connected to the inner wall of the mounting block.

[0014] As a further description of the above technical solution:

[0015] The outer peripheries of the middle parts of the plurality of threaded rods are all fixedly connected to limiting blocks, and the plurality of limiting blocks are all rotatably connected to the herringbone plates.

[0016] As a further description of the above technical solution:

[0017] The ends of the plurality of insertion rods away from the connecting rod are all fixedly connected with a clamping plate, and the two side walls of the plurality of mounting blocks are all provided with a clamping groove.

[0018] As a further description of the above technical solution:

[0019] The top walls of the multiple herringbone plates are all provided with countersunk holes, the multiple countersunk holes are all opened on the outer periphery of the top end of the threaded rod, and the upper sides of the multiple countersunk holes are all provided with sealing plugs.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, the liquid can overflow evenly through the joint action of the main body, vertical ring, herringbone plate, bottom plate and support plate, and the liquid will be steam stripped under the action of the herringbone plate, thereby increasing the mass transfer effect and improving the wax oil extraction rate.

[0022] 2. In the present invention, the herringbone plate can be removed from the support plate and replaced by the joint action of the herringbone plate, threaded rod, movable plate, connecting rod, inserting rod, mounting block and support plate, thereby achieving the effect of facilitating the replacement of the herringbone plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a herringbone baffle assembly for increasing mass transfer effect proposed by the present invention;

[0024] Figure 2 This is a front cross-sectional view of a herringbone baffle assembly for increasing mass transfer effect proposed by the present invention;

[0025] Figure 3 This is a front cross-sectional view of a herringbone plate of a herringbone baffle assembly for increasing mass transfer effect proposed by the present invention.

[0026] Legend:

[0027] 1. Main body; 2. Assembly and disassembly mechanism; 201. Countersunk hole; 202. Sealing plug; 203. Threaded rod; 204. Limit block; 205. Mounting block; 206. Limit rod; 207. Moving plate; 208. Connecting rod; 209. Insert rod; 210. Clamping plate; 211. Clamping slot; 3. Vertical ring; 4. Tie rod; 5. Support plate; 6. Bottom plate; 7. Guide plate; 8. Herringbone plate; 9. Overflow weir. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-Figure 3The utility model provides an embodiment: a herringbone baffle group that increases the mass transfer effect, including a main body 1, a mounting and disassembly mechanism 2 is provided in the main body 1, a bottom plate 6 is fixedly connected to the upper side of the inner wall of the main body 1, a plurality of vertical rings 3 are fixedly connected to the top wall of the bottom plate 6, and a uniformly distributed support plate 5 is fixedly connected to the front side of the inner wall of the main body 1. The rear ends of the plurality of support plates 5 are fixedly connected to the rear side of the inner wall of the main body 1, and the top walls of the plurality of support plates 5 are each provided with a herringbone plate 8. A plurality of guide plates 7 are fixedly connected to both sides of the inner wall of the main body 1, and the upper herringbone plates 8 are each arranged between adjacent vertical rings 3, and the two adjacent layers of herringbone plates 8 are staggered in the vertical direction; a plurality of tie rods 4 are fixedly connected to the outer periphery of the plurality of vertical rings 3, and the ends of the plurality of tie rods 4 away from the vertical rings 3 are fixedly connected to the inner wall of the main body 1; the top walls of the plurality of herringbone plates 8 and the guide plates 7 are each fixedly connected to an overflow weir 9, and the plurality of overflow weirs 9 are all toothed weirs or horizontal weirs and are arranged at the lower end of the liquid flow;

[0030] Specifically, the liquid will enter the main body 1 from the top and fall onto the vertical ring 3, wherein the vertical ring 3 and the bottom plate 6 will form a liquid collection and redistribution ring. The gaps between the vertical rings 3 can make the liquid on the vertical ring 3 distributed to each herringbone plate 8 on the top side, and the liquid flowing down through the gaps between the vertical rings 3 on both sides and the main body 1 will fall onto the guide plate 7 for diversion. At the same time, the vertical rings 3 are fixed to the inner wall of the main body 1 through multiple tie rods 4 fixed on the periphery, thereby ensuring the stability of the vertical ring 3. When the liquid flows to the herringbone plate 8 and the guide plate 7 on the top side, it will be blocked by the overflow weir 9. When the liquid accumulates on the inner side of the overflow weir 9 to the point where the liquid is higher than the overflow weir 9, it will flow out through the overflow weir 9 and flow to the herringbone plate 8 of the next layer, thereby making the liquid overflow evenly, and then the liquid on the herringbone plate 8 will be steam stripped under the action of the herringbone plate 8, thereby increasing the mass transfer effect and improving the wax oil extraction rate.

[0031] Reference Figure 1-Figure 3 , the assembly and disassembly mechanism 2 includes a mounting block 205, multiple mounting blocks 205 are fixedly connected to the bottom wall of the herringbone plate 8, multiple mounting blocks 205 are slidably connected to the support plate 5, multiple herringbone plates 8 top walls are rotatably connected to threaded rods 203, multiple threaded rods 203 bottom ends are penetrated into the mounting block 205 and are threadedly connected to the movable plate 207, multiple movable plates 207 are rotatably connected to connecting rods 208 on both sides, multiple connecting rods 208 are rotatably connected to one end away from the movable plate 207 with an insertion rod 209, and multiple insertion rods 209 are penetrated into the support plate 5 at one end away from the connecting rod 208; limit rods 206 are provided on both sides of multiple threaded rods 203, and multiple limit rods 206 upper and lower ends penetrate the movable plate 207 and are fixedly connected to the inner wall of the mounting block 205; multiple insertion rods 209 are fixedly connected to a card plate 210 at one end away from the connecting rod 208, and multiple mounting blocks 205 have card slots 211 on both side walls;

[0032] Specifically, when the herringbone plate 8 needs to be replaced after long-term use, the staff can rotate the threaded rod 203 to drive the movable plate 207 connected to the bottom end to move. Since the movable plate 207 is also limited by the limit rod 206, it cannot rotate with the threaded rod 203, so that the movable plate 207 will move up and down as the threaded rod 203 rotates. When the movable plate 207 moves upward, it will drive the connected connecting rod 208 to move. However, since the connecting rod 208 is connected to the plug rod 209, and the plug rod 209 is limited by the mounting block 205, when the movable plate 207 moves upward, the connecting rod 208 will rotate accordingly and pull the plugs on both sides. The rods 209 are close to each other, so that the insertion rod 209 can be retracted into the mounting block 205 to cancel the limit with the support plate 5. Then the herringbone plate 8 connected to the mounting block 205 can be removed from the support plate 5 and replaced. Moreover, when the insertion rods 209 are close to each other, the card plates 210 are also driven to approach each other. The cooperation between the card plates 210 and the card slots 211 can prevent the insertion rod 209 from being completely retracted into the mounting block 205, thereby ensuring its normal use. During installation, it is only necessary to insert the mounting block 205 into the support plate 5 and rotate the threaded rod 203 in the opposite direction, so that the insertion rod 209 is extended and inserted into the support plate 5 for fixation, thereby achieving the effect of facilitating the replacement of the herringbone plate 8.

[0033] Reference Figure 1-Figure 3 , the outer periphery of the middle portion of the plurality of threaded rods 203 are fixedly connected to the limiting blocks 204, and the plurality of limiting blocks 204 are rotatably connected to the herringbone plate 8;

[0034] Specifically, the threaded rod 203 can be limited by providing the limiting block 204 to prevent the threaded rod 203 from sliding up and down.

[0035] Reference Figure 1-Figure 3 , multiple herringbone plates 8 have top walls with countersunk holes 201, multiple countersunk holes 201 are opened on the outer periphery of the top of the threaded rod 203, and multiple countersunk holes 201 are provided with sealing plugs 202 on the upper side thereof;

[0036] Specifically, the countersunk hole 201 can accommodate the top of the threaded rod 203 , and the countersunk hole 201 can be sealed by the sealing plug 202 to prevent liquid from penetrating into the countersunk hole 201 .

[0037] Working principle: During actual use, the liquid will enter the main body 1 from the top of the main body 1 and flow to the vertical ring 3. The gaps between the vertical rings 3 can make the liquid on the vertical ring 3 distributed to each herringbone plate 8 on the top side and overflow evenly. The liquid will undergo steam stripping under the action of the herringbone plate 8, thereby increasing the mass transfer effect and improving the wax oil extraction rate. In addition, when the herringbone plate 8 needs to be replaced after long-term use, the staff can rotate the threaded rod 203 to drive the movable plate 207 connected to the bottom to move upward, so that the insertion rod 209 can be retracted into the mounting block 205 through the connecting rod 208. Then the herringbone plate 8 connected to the mounting block 205 support plate 5 can be removed and replaced. During installation, it is only necessary to insert the mounting block 205 into the support plate 5 and rotate the threaded rod 203 in the opposite direction so that the insertion rod 209 extends out and is inserted into the support plate 5 for fixation, thereby achieving the effect of facilitating the replacement of the herringbone plate 8.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A herringbone baffle assembly for increasing mass transfer effect, comprising a main body (1), characterized in that: The main body (1) is provided with an assembly and disassembly mechanism (2), the upper side of the inner wall of the main body (1) is fixedly connected with a bottom plate (6), the top wall of the bottom plate (6) is fixedly connected with a plurality of vertical rings (3), the front side of the inner wall of the main body (1) is fixedly connected with uniformly distributed support plates (5), the rear ends of the plurality of support plates (5) are fixedly connected to the rear side of the inner wall of the main body (1), the top walls of the plurality of support plates (5) are provided with a herringbone plate (8), the inner walls of the main body (1) are fixedly connected with a plurality of guide plates (7), the upper herringbone plates (8) are arranged between adjacent vertical rings (3), and the two adjacent layers of the herringbone plates (8) are staggered in the vertical direction.

2. The herringbone baffle assembly for increasing mass transfer efficiency according to claim 1, characterized in that: The assembly and disassembly mechanism (2) comprises a mounting block (205), a plurality of the mounting blocks (205) are fixedly connected to the bottom wall of the herringbone plate (8), a plurality of the mounting blocks (205) are slidably connected to the support plate (5), a plurality of the top walls of the herringbone plates (8) are rotatably connected to threaded rods (203), a plurality of the bottom ends of the threaded rods (203) are passed through the mounting block (205) and are threadedly connected to a movable plate (207), a plurality of the movable plates (207) are rotatably connected to connecting rods (208) on both sides, a plurality of the connecting rods (208) are rotatably connected to an insertion rod (209) at one end away from the movable plate (207), and a plurality of the insertion rods (209) are passed through the support plate (5) at one end away from the connecting rod (208).

3. The herringbone baffle assembly for increasing mass transfer efficiency according to claim 1, characterized in that: The outer peripheries of the plurality of vertical rings (3) are all fixedly connected with a plurality of tie bars (4), and the ends of the plurality of tie bars (4) away from the vertical rings (3) are all fixedly connected to the inner wall of the main body (1).

4. The herringbone baffle assembly for increasing mass transfer efficiency according to claim 1, characterized in that: The top walls of the plurality of herringbone plates (8) and the guide plates (7) are all fixedly connected with overflow weirs (9), and the plurality of overflow weirs (9) are all toothed weirs or flat flow weirs and are arranged at the lower end of the liquid flow.

5. The herringbone baffle assembly for increasing mass transfer effect according to claim 2, characterized in that: Limiting rods (206) are provided on both sides of the plurality of threaded rods (203), and upper and lower ends of the plurality of limiting rods (206) pass through the movable plate (207) and are fixedly connected to the inner wall of the mounting block (205).

6. The herringbone baffle assembly for increasing mass transfer effect according to claim 2, characterized in that: The outer peripheries of the middle parts of the plurality of threaded rods (203) are all fixedly connected to the limiting blocks (204), and the plurality of limiting blocks (204) are all rotatably connected in the herringbone plate (8).

7. The herringbone baffle assembly for increasing mass transfer efficiency according to claim 2, characterized in that: The ends of the plurality of insertion rods (209) away from the connecting rod (208) are all fixedly connected with a clamping plate (210), and both side walls of the plurality of mounting blocks (205) are provided with a clamping groove (211).

8. The herringbone baffle assembly for increasing mass transfer effect according to claim 2, characterized in that: The top walls of the plurality of herringbone plates (8) are each provided with a countersunk hole (201), the plurality of countersunk holes (201) are each provided on the outer periphery of the top end of the threaded rod (203), and the upper inner sides of the plurality of countersunk holes (201) are each provided with a sealing plug (202).

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