Backflow liquid gathering device, intermittent bunched rectifying tower and continuous bunched rectifying tower

Abstract

The utility model discloses a backflow liquid gathering device, an intermittent bunched rectifying tower and a continuous bunched rectifying tower. The backflow liquid gathering device comprises a first cylinder body, a liquid discharge pipe arranged on the inner side of the first cylinder body and at least two flow guide plates which are arranged on the inner side of the first cylinder body and are sequentially arranged in the circumferential direction; wherein flow guide grooves which are inclined downwards from outside to inside in the radial direction are formed in the flow guide plates, the flow guide plates are used for receiving backflow liquid flowing down from the upper portion and enabling the backflow liquid to flow into the flow guide grooves, the lower end of each flow guide groove extends to the liquid discharging pipe, and a gas phase channel is formed between every two adjacent flow guide plates. According to the utility model, reflux liquid flowing down from the upper part can be collected and can flow downwards after being converged, upward flowing of a gas-phase component cannot be hindered, the gas-phase component can flow upwards smoothly, the contact exchange efficiency of the gas-phase component and a liquid-phase component can be improved, and the gas-phase component and the liquid-phase component are contacted and exchanged without mutual hindering.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of backflow liquid gathering device, intermittent cluster rectifying column and continuous cluster rectifying column. BACKGROUND

[0002] Currently, rectifying column is a tower type vapor-liquid contactor, which can separate liquid mixture by multiple vaporization and condensation using the difference in boiling points of each component in the liquid mixture. In the rectifying column, the liquid phase components flow downward while the gas phase components flow upward. During the flow process, the gas phase components and the liquid phase components continuously contact and exchange. To improve the gas-liquid exchange efficiency of the rectifying column, multiple parallel tower pipes can be arranged in the rectifying column. For example, the Chinese patent with publication number CN216320037U discloses multiple parallel tower pipes arranged in the rectifying column. Since the diameter of the tower pipes is small, the gas-liquid exchange efficiency is improved. An equal distributor is arranged above the tower pipes to distribute the backflow liquid equally into each tower pipe. In addition, the backflow liquid flowing down from the tower pipes needs to be collected below the tower pipes for redistribution. The Chinese patent with publication number CN221451742U discloses a rectifying column liquid collector, which can be used to collect the backflow liquid flowing down from the tower pipes. However, when the rectifying column liquid collector is clamped to the inner wall of the rectifying column, the gas phase components below the rectifying column liquid collector can only pass through the first through hole, the second through hole, and the third through hole and flow upward. Since the diameters of the first through hole, the second through hole, and the third through hole are small, it will seriously hinder the upward flow of the gas phase components, leading to poor upward flow of the gas phase components and affecting the contact and exchange efficiency of the gas phase components and the liquid phase components. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a backflow liquid gathering device that can collect the backflow liquid flowing down from above and make the backflow liquid converge and flow downward without hindering the upward flow of the gas phase components. This can facilitate the upward flow of the gas phase components and improve the contact and exchange efficiency of the gas phase components and the liquid phase components, allowing the gas-liquid two-phase contact and exchange without mutual hindrance.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a backflow liquid gathering device, comprising a first cylinder, a liquid discharge pipe arranged on the inner side of the first cylinder, and at least two flow guide plates arranged on the inner side of the first cylinder and arranged in sequence along the circumference.

[0005] The flow guide plate is provided with a flow guide groove that slopes downward from the outside to the inside along the radial direction. The flow guide plate is used to receive the backflow liquid flowing down from above and make the backflow liquid flow into the flow guide groove.

[0006] The lower end of the flow guide groove extends to the drain pipe so as to guide and converge the backflow liquid in the flow guide groove into the drain pipe.

[0007] The gas phase passage is arranged between the adjacent flow guide plates.

[0008] Further, the outer end of the flow guide plate is connected with the first cylinder, and the inner end of the flow guide plate is connected with the upper end of the drain pipe.

[0009] Further, the flow guide plate is arranged obliquely;

[0010] The higher edge of the flow guide plate extends above the lower edge of the adjacent flow guide plate.

[0011] The gas phase passage is arranged between the higher edge of the flow guide plate and the lower edge of the adjacent flow guide plate.

[0012] The flow guide groove is arranged on the lower edge of the flow guide plate.

[0013] Further, the flow guide plate comprises a main plate and a side plate;

[0014] The main plate is arranged obliquely, the side plate is connected on the lower edge of the main plate, and the flow guide groove is arranged between the side plate and the main plate.

[0015] The higher edge of the main plate in the flow guide plate extends above the side plate in the adjacent flow guide plate.

[0016] The gas phase passage is arranged between the higher edge of the main plate in the flow guide plate and the side plate in the adjacent flow guide plate.

[0017] Further, the backflow liquid gathering device further comprises a static mixer connected in the drain pipe.

[0018] Further, the backflow liquid gathering device further comprises a feed pipe passing through the first cylinder and the drain pipe, the inlet end of the feed pipe is located outside the first cylinder, and the outlet end of the feed pipe extends into the drain pipe.

[0019] Further, the backflow liquid gathering device further comprises a second cylinder and an equal distribution device.

[0020] The upper end of the second cylinder is connected with the lower end of the first cylinder, and the first cylinder communicates with the second cylinder.

[0021] The equal distribution device is installed inside the second cylinder and below the drain pipe.

[0022] The equal distribution device is provided with a receiving cavity for receiving reflux liquid flowing out of the liquid discharge pipe;

[0023] The equal distribution device is further provided with a plurality of flow guide pipes for equally discharging the reflux liquid.

[0024] The utility model discloses still provide a kind of intermittent cluster rectifying column, including tower cap, reflux input pipe, distribution tower section, upper tower section, lower tower section, tower kettle and the reflux liquid cluster device;

[0025] The upper tower section includes an upper tower body and a plurality of upper tower pipes.

[0026] The lower tower section includes a lower tower body and a plurality of lower tower pipes.

[0027] The distribution tower section includes a distribution cylinder body and a top distributor.

[0028] The tower cap is connected to the upper end of the distribution cylinder body, the lower end of the distribution cylinder body is connected to the upper end of the upper tower body, the lower end of the upper tower body is connected to the upper end of the first cylinder body, the lower end of the second cylinder body is connected to the upper end of the lower tower body, and the lower end of the lower tower body is connected to the tower kettle.

[0029] The tower cap is provided with a gas phase outlet, and the reflux input pipe extends into the tower cap and is used to access reflux liquid.

[0030] The top distributor is installed in the distribution cylinder body and located below the reflux input pipe, the top distributor is provided with a receiving cavity for receiving reflux liquid flowing out of the reflux input pipe, and the top distributor is further provided with a plurality of shunt pipes for equally discharging reflux liquid.

[0031] The upper tower pipes are arranged side by side in the upper tower body and vertically, the upper tower pipes correspond one-to-one to the shunt pipes in the top distributor, the upper tower pipes are located below the corresponding shunt pipes and aligned with the corresponding shunt pipes so that the reflux liquid flowing out of the shunt pipes falls into the corresponding upper tower pipes.

[0032] The upper tower pipes are also located above the flow guide plates so that the reflux liquid falling in the upper tower pipes falls on the flow guide plates.

[0033] The lower tower pipes are arranged side by side in the lower tower body and vertically, the lower tower pipes correspond one-to-one to the flow guide pipes in the equal distribution device, the lower tower pipes are located below the corresponding flow guide pipes and aligned with the corresponding flow guide pipes so that the reflux liquid flowing out of the flow guide pipes falls into the corresponding lower tower pipes.

[0034] The utility model also provides a kind of continuous cluster rectifying column, including rectifying column section, distillation tower section and the reflux liquid cluster device.

[0035] The rectifying tower section comprises a first tower body and a plurality of first tower pipes;

[0036] The rectifying tower section comprises a second tower body and a plurality of second tower pipes;

[0037] The lower end of the first tower body is connected with the upper end of the first cylinder body, and the upper end of the second tower body is connected with the lower end of the second cylinder body;

[0038] The first tower pipes are arranged in parallel in the first tower body and vertically, and the first tower pipes are located above the guide plates so that the reflux liquid falling in the first tower pipes falls on the guide plates;

[0039] The second tower pipes are arranged in parallel in the second tower body and vertically, and the second tower pipes correspond to the guide pipes in the equal distributors one by one, the second tower pipes are located below the corresponding guide pipes and are aligned with the corresponding guide pipes so that the reflux liquid flowing out of the guide pipes falls into the corresponding second tower pipes.

[0040] After the reflux liquid falling from the tower pipes above is caught by the guide plates, the reflux liquid flows along the guide plates into the guide grooves, and then flows along the guide grooves into the liquid discharge pipes, and then continues to flow downward from the liquid discharge pipes, while the gas phase components below can pass through the gas phase channels and flow upward. The reflux liquid is in liquid phase, the reflux liquid collecting device of the embodiment of the present application can collect the reflux liquid falling from above and make the reflux liquid flow downward after being collected in the liquid discharge pipes, and does not hinder the upward flow of the gas phase components, can make the gas phase components flow upward smoothly, and can make the gas and liquid phases contact and exchange at the guide plates without hindering each other, thereby improving the contact and exchange efficiency of the gas phase components and the liquid phase components. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a structure schematic view of the reflux liquid collecting device in the first embodiment of the present application;

[0042] Figure 2 It is a structure schematic view of the reflux liquid collecting device in the second embodiment of the present application;

[0043] Figure 3 It is an external structure schematic view of the first cylinder body, the liquid discharge pipe and the guide plate;

[0044] Figure 4 It is an internal structure schematic view of the first cylinder body, the liquid discharge pipe and the guide plate;

[0045] Figure 5The structure schematic view of the drain pipe and the flow guide plate of the utility model;

[0046] Figure 6 The structure schematic view of the second cylinder body and the equal distributor of the utility model;

[0047] Figure 7 The structure schematic view of the intermittent cluster rectifying tower of the utility model;

[0048] Figure 8 The structure schematic view of the continuous cluster rectifying tower of the utility model; Figure 7 The sectional view of A in the figure;

[0049] Figure 9 The sectional view of B in the figure; Figure 7 The sectional view of C-C in the figure;

[0050] Figure 10 The sectional view of D-D in the figure; Figure 7 The sectional view of C-C in the figure;

[0051] Figure 11 The sectional view of D-D in the figure; Figure 7 The sectional view of D-D in the figure;

[0052] Figure 12 The structure schematic view of the continuous cluster rectifying tower of the utility model. DETAILED DESCRIPTION

[0053] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed.

[0054] Example one

[0055] As Figure 1 , 3 , 4, 5, a kind of backflow liquid aggregation device, including first cylinder body 1, drain pipe 2 in the inside of the first cylinder body 1 and at least two flow guide plate 3 in the inside of the first cylinder body 1 and sequentially arranged along the circumferential direction;

[0056] The flow guide plate 3 is equipped with the flow guide groove 4 that is inclined downward from outside to inside along radial direction, the flow guide plate 3 is used to receive the backflow liquid that flows down above and makes backflow liquid flow to the flow guide groove 4;

[0057] The lower end of the flow guide groove 4 extends to the drain pipe 2 so as to guide the backflow liquid in the flow guide groove 4 to converge to the drain pipe 2;

[0058] Gas phase passages 5 are arranged between adjacent flow guide plates 3. Specifically, after the flow guide plates 3 catch the reflux liquid flowing down from the tower pipe above, the reflux liquid flows along the flow guide plates 3 to the flow guide grooves 4, and then flows along the flow guide grooves 4 to the liquid discharge pipe 2, and then continues to flow downward from the liquid discharge pipe 2, while the gas phase components below can pass through the gas phase passages 5 and flow upward. The reflux liquid is a liquid phase component, and the reflux liquid collecting device of the embodiment of the application can collect the reflux liquid flowing down above and make the reflux liquid flow downward after being collected in the liquid discharge pipe 2, without hindering the upward flow of the gas phase components below, so that the upward flow of the gas phase components is smooth, and the gas-liquid two phases can contact and exchange at the flow guide plates 3 without hindering each other, thereby improving the contact and exchange efficiency of the gas phase components and the liquid phase components.

[0059] As shown in Figure 1 , 3 , 4, 5, the outer end of the flow guide plate 3 is connected with the first cylinder 1, and the inner end of the flow guide plate 3 is connected with the upper end of the liquid discharge pipe 2; specifically, the liquid discharge pipe 2 is arranged vertically in the center of the first cylinder 1, and the outer end of the flow guide plate 3 is connected with the inner wall of the first cylinder 1.

[0060] As shown in Figure 1 , 3 , 4, 5, the flow guide plate 3 is arranged obliquely;

[0061] The higher edge of the flow guide plate 3 extends above the lower edge of the adjacent flow guide plate 3;

[0062] The gas phase passage 5 is arranged between the higher edge of the flow guide plate 3 and the lower edge of the adjacent flow guide plate 3;

[0063] The flow guide groove 4 is arranged on the lower edge of the flow guide plate 3.

[0064] As shown in Figure 1 , 3 , 4, 5, the flow guide plate 3 can include a main plate 6 and a side plate 7;

[0065] The main plate 6 is arranged obliquely, the side plate 7 is connected to the lower edge of the main plate 6, and the flow guide groove 4 is arranged between the side plate 7 and the main plate 6;

[0066] The higher edge of the main plate 6 in the flow guide plate 3 extends above the side plate 7 in the adjacent flow guide plate 3;

[0067] The gas phase passage 5 is arranged between the higher edge of the main plate 6 in the guide plate 3 and the adjacent side plate 7 in the guide plate 3; specifically, the side plate 7 is connected to the main plate 6 in a V shape; wherein the higher edge of the guide plate 3 is the higher edge of the main plate 6, and the lower edge of the guide plate 3 includes the lower edge of the main plate 6 and the side plate 7.

[0068] In the embodiment, the upper end of the liquid discharge pipe 2 is provided with a plurality of sawtooth grooves 38 distributed in the circumferential direction in sequence, the sawtooth grooves 38 correspond to the guide plates 3 one by one, the inner side end of the main plate 6 and the inner side end of the side plate 7 in the guide plate 3 are connected to the corresponding sawtooth grooves 38, the outer side end of the main plate 6 and the outer side end of the side plate 7 in the guide plate 3 are connected to the inner wall of the first cylinder 1, and the guide plate 3 as a whole has a fan-shaped structure. Specifically, the upper end and the lower end of the first cylinder 1 are respectively provided with flange portions.

[0069] As shown in Figure 1 , 3 , 4, 5, the reflux liquid collecting device can further include a static mixer 8 connected in the liquid discharge pipe 2 to mix the reflux liquid flowing into the liquid discharge pipe 2 uniformly before flowing downward.

[0070] As shown in Figure 1 , 6 , the reflux liquid collecting device can further include a second cylinder 10 and an equal distribution device 11;

[0071] The upper end of the second cylinder 10 is connected to the lower end of the first cylinder 1, and the first cylinder 1 communicates with the second cylinder 10;

[0072] The equal distribution device 11 is installed inside the second cylinder 10 and below the liquid discharge pipe 2;

[0073] The equal distribution device 11 is provided with a receiving inner cavity 12 for receiving the reflux liquid flowing out of the liquid discharge pipe 2;

[0074] The equal distribution device 11 is further provided with a plurality of flow guide pipes 13 for equally discharging the reflux liquid; specifically, the equal distribution device 11 is connected to the second cylinder 10, and the specific structure of the equal distribution device 11 is a prior art known to those skilled in the art, and specifically can refer to the automatic equal distribution device 11 for reflux liquid of the bundled rectification disclosed in the Chinese patent with the publication number CN206152377U.

[0075] Embodiment two

[0076] As shown in Figures 2 to 5As shown, a reflux liquid collection device includes a first cylinder 1, a drain pipe 2 disposed inside the first cylinder 1, and at least two guide plates 3 disposed inside the first cylinder 1 and arranged sequentially along the circumference.

[0077] The guide plate 3 is provided with a guide groove 4 that slopes radially from the outside to the inside downwards. The guide plate 3 is used to receive the return liquid flowing down from above and allow the return liquid to flow into the guide groove 4.

[0078] The lower end of the guide channel 4 extends to the drain pipe 2 so as to guide and collect the return liquid in the guide channel 4 into the drain pipe 2;

[0079] A gas phase channel 5 is provided between adjacent guide plates 3. Specifically, after the guide plate 3 receives the reflux liquid flowing down from the upper tower tube, the reflux liquid flows along the guide plate 3 into the guide groove 4, and then flows along the guide groove 4 into the drain pipe 2, and then continues to flow downward from the drain pipe 2. At the same time, the lower gas phase component can pass through the gas phase channel 5 and flow upward. Here, the reflux liquid is a liquid phase component. The reflux liquid collection device of this embodiment can collect the reflux liquid flowing down from above and make the reflux liquid flow downward after converging into the drain pipe 2, without hindering the upward flow of the lower gas phase component. It can make the upward flow of the gas phase component smooth, and can make the gas and liquid phases contact and exchange at the guide plate 3 without obstructing each other, thereby improving the contact exchange efficiency of the gas phase component and the liquid phase component.

[0080] like Figures 2 to 5 As shown, the outer end of the guide plate 3 is connected to the first cylinder 1, and the inner end of the guide plate 3 is connected to the upper end of the drain pipe 2; specifically, the drain pipe 2 is vertically arranged at the center of the first cylinder 1, and the outer end of the guide plate 3 is connected to the inner wall of the first cylinder 1.

[0081] like Figures 2 to 5 As shown, the guide plate 3 is inclined;

[0082] The higher edge of the guide plate 3 extends above the lower edge of the adjacent guide plate 3;

[0083] The gas phase channel 5 is located between the higher edge of the guide plate 3 and the lower edge of the adjacent guide plate 3.

[0084] The flow guide groove 4 is located on the lower edge of the flow guide plate 3.

[0085] like Figures 2 to 5 As shown, the flow guide plate 3 may include a main plate 6 and a side plate 7;

[0086] The main plate 6 is arranged obliquely, the side plate 7 is connected to the lower edge of the main plate 6, and the flow guide groove 4 is arranged between the side plate 7 and the main plate 6.

[0087] The upper edge of the main plate 6 in the flow guide plate 3 extends above the side plate 7 in the adjacent flow guide plate 3.

[0088] The gas phase channel 5 is arranged between the upper edge of the main plate 6 in the flow guide plate 3 and the side plate 7 in the adjacent flow guide plate 3. Specifically, the side plate 7 is connected to the main plate 6 in a V shape. The upper edge of the flow guide plate 3 is the upper edge of the main plate 6, and the lower edge of the flow guide plate 3 includes the lower edge of the main plate 6 and the side plate 7.

[0089] In this embodiment, the upper end of the drain pipe 2 is provided with a plurality of sawtooth grooves 38 distributed circumferentially, the sawtooth grooves 38 correspond to the flow guide plates 3 one by one, the inner side end of the main plate 6 and the inner side end of the side plate 7 in the flow guide plate 3 are connected to the corresponding sawtooth grooves 38, the outer side end of the main plate 6 and the outer side end of the side plate 7 in the flow guide plate 3 are connected to the inner wall of the first cylinder 1, and the flow guide plate 3 has a fan-shaped structure as a whole. Specifically, the upper end and the lower end of the first cylinder 1 are respectively provided with flange portions.

[0090] As shown in Figures 2 to 5 , the reflux liquid collecting device can further include a static mixer 8 connected in the drain pipe 2 to mix the reflux liquid flowing into the drain pipe 2 uniformly before flowing downward.

[0091] As shown in Figure 2 , 6 , the reflux liquid collecting device can further include a second cylinder 10 and an equal distribution device 11.

[0092] The upper end of the second cylinder 10 is connected to the lower end of the first cylinder 1, and the first cylinder 1 communicates with the second cylinder 10.

[0093] The equal distribution device 11 is installed inside the second cylinder 10 and below the drain pipe 2.

[0094] The equal distribution device 11 is provided with a receiving inner cavity 12 for receiving the reflux liquid flowing out of the drain pipe 2.

[0095] The equal distribution device 11 is also provided with a plurality of flow guide pipes 13 for equal distribution of the reflux liquid; specifically, the equal distribution device 11 is connected to the second cylinder body 10, and the specific structure of the equal distribution device 11 is a prior art known to those skilled in the art, and can be specifically referred to the automatic equal distribution device 11 for reflux liquid of the bundle rectification disclosed in the Chinese patent with the publication number CN206152377U.

[0096] As shown in Figure 2 The reflux liquid gathering device also includes a feed pipe 9 passing through the first cylinder body 1 and the liquid discharge pipe 2, the inlet end of the feed pipe 9 is located outside the first cylinder body 1, and the outlet end of the feed pipe 9 extends into the liquid discharge pipe 2.

[0097] Example three

[0098] As shown in Figures 7 to 11 A batch bundle rectification column, comprising a tower cap 14, a reflux input pipe 15, a distribution tower section 16, an upper tower section 17, a lower tower section 18, a tower kettle 19, and a reflux liquid gathering device 100 as described in Example One;

[0099] The upper tower section 17 includes an upper tower body 20 and a plurality of upper tower pipes 21;

[0100] The lower tower section 18 includes a lower tower body 22 and a plurality of lower tower pipes 23;

[0101] The distribution tower section 16 includes a distribution cylinder body 24 and a top distributor 25;

[0102] The tower cap 14 is connected to the upper end of the distribution cylinder body 24, the lower end of the distribution cylinder body 24 is connected to the upper end of the upper tower body 20, the lower end of the upper tower body 20 is connected to the upper end of the first cylinder body 1, the lower end of the second cylinder body 10 is connected to the upper end of the lower tower body 22, the lower end of the lower tower body 22 is connected to the tower kettle 19, and the tower cap 14, the distribution cylinder body 24, the upper tower body 20, the first cylinder body 1, the second cylinder body 10, the lower tower body 22, and the tower kettle 19 are sequentially communicated;

[0103] The tower cap 14 is provided with a gas phase outlet 26, and is also provided with a baffle 27 below the gas phase outlet 26, and the reflux input pipe 15 extends into the tower cap 14 and is used for accessing the reflux liquid;

[0104] The top distributor 25 is installed in the distribution cylinder 24 and below the reflux input pipe 15, the top distributor 25 is provided with a receiving cavity 28 for receiving the reflux liquid flowing out of the reflux input pipe 15, and the top distributor 25 is also provided with a plurality of shunt pipes 29 for equally discharging the reflux liquid; Specifically, the specific structure of the top distributor 25 is well known to those skilled in the art, and can be referred to the automatic top distributor 25 of the bundle rectification reflux liquid disclosed in the Chinese patent with publication number CN206152377U;

[0105] The upper column pipe 21 is arranged in parallel in the upper column body 20 and vertically, the upper column pipe 21 corresponds to the shunt pipe 29 in the top distributor 25 one by one, the upper column pipe 21 is below the corresponding shunt pipe 29 and aligned with the corresponding shunt pipe 29 so that the reflux liquid flowing out of the shunt pipe 29 falls into the corresponding upper column pipe 21;

[0106] The upper column pipe 21 is also above the flow guide plate 3 so that the reflux liquid falling in the upper column pipe 21 falls on the flow guide plate 3;

[0107] The lower column pipe 23 is arranged in parallel in the lower column body 22 and vertically, the lower column pipe 23 corresponds to the flow guide pipe 13 in the equal distributor 11 one by one, the lower column pipe 23 is below the corresponding flow guide pipe 13 and aligned with the corresponding flow guide pipe 13 so that the reflux liquid flowing out of the flow guide pipe 13 falls into the corresponding lower column pipe 23;

[0108] The upper column pipe 21 and the lower column pipe 23 are both filled with packing, the upper column pipe 21 and the lower column pipe 23 are both filled with heat insulation material, and the bottom of the upper column pipe 21 and the bottom of the lower column pipe 23 are both installed with a support plate for supporting the packing.

[0109] Specifically, the condenser 30 is connected with the gas phase outlet 26, the outlet of the condenser 30 is connected with the magnetic sealing reflux liquid distributor 31, and one outlet of the magnetic sealing reflux liquid distributor 31 is connected with the reflux input pipe 15. The material in the tower kettle 19 is heated, the gas phase component flows into the lower tower pipe 23, then flows into the second cylinder 10 through the lower tower pipe 23, and then flows into the first cylinder 1, the gas phase component in the first cylinder 1 flows into the upper tower pipe 21 through the gas phase channel 5, then flows into the distribution cylinder 24 through the upper tower pipe 21, and then flows into the tower cap 14, so that the upward flow of the gas phase component is not hindered. The gas phase component flows into the condenser 30 from the gas phase outlet 26, is condensed and liquefied, then flows into the reflux input pipe 15 through the magnetic sealing reflux liquid distributor 31, and then falls into the receiving inner cavity 28 in the top distributor 25, the top distributor 25 can equally distribute the reflux liquid in the receiving inner cavity 28, and then the reflux liquid is equally distributed to each upper tower pipe 21 through each distribution pipe 29. The reflux liquid in the upper tower pipe 21 flows downward and falls on the guide plate 3, the guide plate 3 guides the reflux liquid to flow into the guide groove 4, then the reflux liquid in the guide groove 4 flows into the liquid discharge pipe 2, then the reflux liquid in the liquid discharge pipe 2 is mixed uniformly through the static mixer 8, and then falls into the receiving inner cavity 12 in the equal distribution device 11, the equal distribution device 11 can equally distribute the reflux liquid in the receiving inner cavity 12, and then the reflux liquid is equally distributed to each lower tower pipe 23 through each guide pipe 13, and then the reflux liquid in the lower tower pipe 23 flows downward. Further specifically, the reflux liquid collecting device 100 can automatically collect the reflux liquid in each upper tower pipe 21, and then automatically equally distribute the collected reflux liquid to each lower tower pipe 23, and can make the gas phase component below flow upward through the gas phase channel 5, and can make the gas-liquid two-phase exchange and contact in the reflux liquid collecting device 100 without hindering each other. The reflux liquid is equally distributed to each upper tower pipe 21, which is beneficial to make the gas-liquid exchange efficiency of each upper tower pipe 21 consistent, and then is beneficial to maximize the overall gas-liquid exchange efficiency. Similarly, the reflux liquid is equally distributed to each lower tower pipe 23, which is beneficial to make the gas-liquid exchange efficiency of each lower tower pipe 23 consistent, and then is beneficial to maximize the overall gas-liquid exchange efficiency. Since the diameters of the upper tower pipe 21 and the lower tower pipe 23 are small, the gas-liquid exchange efficiency in the intermittent cluster rectifying column is improved, the theoretical plate number is higher, and the overall tower height and operation cost are reduced.

[0110] Embodiment four

[0111] As Figure 12 shown in FIG. 2, a continuous bundle rectifying tower comprises a rectifying tower section 32, a stripping tower section 33 and a reflux liquid gathering device 100 as described in Embodiment Two;

[0112] The rectifying tower section 32 comprises a first tower body 34 and a plurality of first tower pipes 35;

[0113] The stripping tower section 33 comprises a second tower body 36 and a plurality of second tower pipes 37;

[0114] The lower end of the first tower body 34 is connected to the upper end of the first cylinder 1, the upper end of the second tower body 36 is connected to the lower end of the second cylinder 10, and the first tower body 34, the first cylinder 1, the second cylinder 10 and the second tower body 36 are sequentially communicated;

[0115] The first tower pipes 35 are arranged side by side in the first tower body 34 and vertically, and the first tower pipes 35 are located above the deflector 3 so that the reflux liquid falling in the first tower pipes 35 falls on the deflector 3;

[0116] The second tower pipes 37 are arranged side by side in the second tower body 36 and vertically, and the second tower pipes 37 correspond to the flow guide pipes 13 in the equal distributor 11 one by one, the second tower pipes 37 are located below the corresponding flow guide pipes 13 and are aligned with the corresponding flow guide pipes 13 so that the reflux liquid flowing out of the flow guide pipes 13 falls into the corresponding second tower pipes 37;

[0117] The first tower pipes 35 and the second tower pipes 37 are both filled with packing, the first tower pipes 35 and the first tower body 34 are both filled with heat insulation material, and the bottom of the first tower pipes 35 and the bottom of the second tower pipes 37 are both installed with support trays for supporting the packing.

[0118] Specifically, the reflux liquid in the first column pipe 35 flows downward to fall on the deflector 3, the deflector 3 receives the reflux liquid and makes the reflux liquid flow along the deflector 3 to the deflector groove 4, the reflux liquid in the deflector groove 4 flows to the liquid discharge pipe 2, the reflux liquid in the liquid discharge pipe 2 flows through the static mixer 8, is mixed uniformly, and then falls into the receiving cavity 12 in the equal distribution device 11, the equal distribution device 11 can equally distribute the reflux liquid in the receiving cavity 12, and then the reflux liquid is equally discharged from each deflector pipe 13 and is distributed into each second column pipe 37, the reflux liquid in the second column pipe 37 flows downward again. Moreover, the gas phase component in the second column pipe 37 flows upward to the second cylinder 10 and then flows into the first cylinder 1, the gas phase component in the first cylinder 1 flows upward into the first column pipe 35 through the gas phase passage 5, and then continues to flow upward, so that the upward flow of the gas phase component is not hindered. Further specifically, the reflux liquid collecting device 100 can automatically collect the reflux liquid in each first column pipe 35 and automatically equally distribute the collected reflux liquid into each second column pipe 37, and can also make the gas phase component below flow upward after passing through the gas phase passage 5, and can make the gas-liquid two phases exchange and contact in the reflux liquid collecting device 100 without hindering each other. In the reflux liquid is equally distributed into each second column pipe 37, which is conducive to making the gas-liquid exchange efficiency of each second column pipe 37 tend to be consistent, thereby being conducive to maximizing the overall gas-liquid exchange efficiency, thereby being conducive to reducing the overall column height, being conducive to reducing equipment investment and operating cost, and saving energy consumption. In addition, in the embodiment, the material is poured into the liquid discharge pipe 2 from the feed pipe 9, the material in the liquid discharge pipe 2 flows through the static mixer 8, is mixed uniformly, and then falls into the receiving cavity 12 in the equal distribution device 11, the material is equally distributed in the equal distribution device 11, and then is discharged from each deflector pipe 13 and is equally distributed into each second column pipe 37.

[0119] In summary, the deflector 3 receives the reflux liquid flowing downward from the column pipe above, the reflux liquid flows along the deflector 3 to the deflector groove 4, and then flows along the deflector groove 4 to the liquid discharge pipe 2, and then continues to flow downward from the liquid discharge pipe 2, while the gas phase component below can pass through the gas phase passage 5 and then flow upward. The reflux liquid is a liquid phase component, the reflux liquid collecting device of the embodiment of the present application can collect the reflux liquid flowing downward from above and make the reflux liquid flow downward after being gathered in the liquid discharge pipe 2, and also does not hinder the upward flow of the gas phase component below, can make the gas phase component flow upward smoothly, can make the gas-liquid two phases contact and exchange at the deflector 3 without hindering each other, and thereby is conducive to improving the contact and exchange efficiency of the gas phase component and the liquid phase component.

[0120] The above-described specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the present application, and it should be understood that the above-described specific embodiments are merely specific embodiments of the present application and are not used to limit the present application, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A reflux liquid collection device, characterized by, The application relates to a backflow liquid gathering device, which comprises a first cylinder (1), a liquid discharge pipe (2) arranged on the inner side of the first cylinder (1), and at least two flow guide plates (3) arranged on the inner side of the first cylinder (1) and sequentially arranged along the circumference. The flow guide plate (3) is provided with a flow guide groove (4) which is inclined downward from the outside to the inside along the radial direction, and the flow guide plate (3) is used for receiving the flowing back liquid and making the flowing back liquid flow into the flow guide groove (4). The lower end of the flow guide groove (4) extends to the liquid discharge pipe (2) so as to guide and converge the flowing back liquid in the flow guide groove (4) into the liquid discharge pipe (2). The gas phase channel (5) is arranged between the adjacent flow guide plates (3).

2. The backflow liquid collecting device according to claim 1, wherein The outer end of the flow guide plate (3) is connected with the first cylinder (1), and the inner end of the flow guide plate (3) is connected with the upper end of the liquid discharge pipe (2).

3. The backflow liquid gathering device according to claim 1, wherein The flow guide plate (3) is arranged in an inclined mode. The higher edge of the flow guide plate (3) extends to the upper side of the lower edge of the adjacent flow guide plate (3). The gas phase channel (5) is arranged between the higher edge of the flow guide plate (3) and the lower edge of the adjacent flow guide plate (3). The flow guide groove (4) is arranged on the lower edge of the flow guide plate (3).

4. The backflow liquid gathering device according to claim 3, wherein The flow guide plate (3) comprises a main plate (6) and a side plate (7). The main plate (6) is arranged in an inclined mode, the side plate (7) is connected to the lower edge of the main plate (6), and the flow guide groove (4) is arranged between the side plate (7) and the main plate (6). The higher edge of the main plate (6) in the flow guide plate (3) extends to the upper side of the side plate (7) in the adjacent flow guide plate (3). The gas phase channel (5) is arranged between the higher edge of the main plate (6) in the flow guide plate (3) and the side plate (7) in the adjacent flow guide plate (3).

5. The apparatus according to claim 1, wherein A static mixer (8) is further arranged in the liquid discharge pipe (2).

6. The apparatus according to claim 1, wherein A feed pipe (9) passes through the first cylinder (1) and the liquid discharge pipe (2), the inlet end of the feed pipe (9) is located on the outer side of the first cylinder (1), and the outlet end of the feed pipe (9) extends into the liquid discharge pipe (2).

7. The apparatus according to claim 1, wherein A second cylinder (10) and an equal distribution device (11) are further arranged. The upper end of the second cylinder (10) is connected with the lower end of the first cylinder (1), and the first cylinder (1) communicates with the second cylinder (10). The equal distribution device (11) is arranged on the inner side of the second cylinder (10) and located below the liquid discharge pipe (2). The equal distribution device (11) is provided with a receiving inner cavity (12) for receiving the flowing back liquid from the liquid discharge pipe (2). The equal distribution device (11) is further provided with a plurality of flow guide pipes (13) for equally discharging the flowing back liquid.

8. The apparatus according to claim 7, wherein A feed pipe (9) is further included, which passes through the first cylinder (1) and the liquid discharge pipe (2), the inlet end of the feed pipe (9) is located outside the first cylinder (1), and the outlet end of the feed pipe (9) extends into the liquid discharge pipe (2).

9. An intermittent bundled rectifying column, characterized by, The tower cap (14), the reflux input pipe (15), the distribution tower section (16), the upper tower section (17), the lower tower section (18), the tower kettle (19) and the reflux liquid collecting device (100) as claimed in claim 7 are included. The upper tower section (17) includes an upper tower body (20) and a plurality of upper tower pipes (21). The lower tower section (18) includes a lower tower body (22) and a plurality of lower tower pipes (23). The distribution tower section (16) includes a distribution cylinder (24) and a top distributor (25). The tower cap (14) is connected to the upper end of the distribution cylinder (24), the lower end of the distribution cylinder (24) is connected to the upper end of the upper tower body (20), the lower end of the upper tower body (20) is connected to the upper end of the first cylinder (1), the lower end of the second cylinder (10) is connected to the upper end of the lower tower body (22), and the lower end of the lower tower body (22) is connected to the tower kettle (19). The gas phase outlet (26) is arranged in the tower cap (14), and the reflux input pipe (15) extends into the tower cap (14) and is used for accessing the reflux liquid. The top distributor (25) is installed in the distribution cylinder (24) and is located below the reflux input pipe (15), the top distributor (25) is provided with a receiving inner cavity (28) for receiving the reflux liquid flowing out of the reflux input pipe (15), and a plurality of shunt pipes (29) for equally discharging the reflux liquid are further arranged in the top distributor (25). The upper tower pipes (21) are arranged in parallel in the upper tower body (20) and are arranged vertically, the upper tower pipes (21) correspond to the shunt pipes (29) in the top distributor (25) one by one, the upper tower pipes (21) are located below the corresponding shunt pipes (29) and are aligned with the corresponding shunt pipes (29) so that the reflux liquid flowing out of the shunt pipes (29) falls into the corresponding upper tower pipes (21). The upper tower pipes (21) are further located above the flow guide plate (3) so that the reflux liquid falling in the upper tower pipes (21) falls on the flow guide plate (3). The lower tower pipes (23) are arranged in parallel in the lower tower body (22) and are arranged vertically, the lower tower pipes (23) correspond to the flow guide pipes (13) in the equal distribution device (11) one by one, the lower tower pipes (23) are located below the corresponding flow guide pipes (13) and are aligned with the corresponding flow guide pipes (13) so that the reflux liquid flowing out of the flow guide pipes (13) falls into the corresponding lower tower pipes (23).

10. A continuous bundled rectification column characterized by, The rectifying tower section (32), the distillation tower section (33) and the reflux liquid collecting device (100) as claimed in claim 8 are included. The rectifying tower section (32) includes a first tower body (34) and a plurality of first tower pipes (35). The distillation column section (33) comprises a second column body (36) and a plurality of second column pipes (37); The lower end of the first column body (34) is connected to the upper end of the first cylinder (1), and the upper end of the second column body (36) is connected to the lower end of the second cylinder (10); The first column pipes (35) are arranged side by side in the first column body (34) and vertically, and the first column pipes (35) are located above the guide plates (3) so that the reflux liquid falling in the first column pipes (35) falls on the guide plates (3); The second column pipes (37) are arranged side by side in the second column body (36) and vertically, and the second column pipes (37) correspond to the guide pipes (13) in the equal distributors (11) one by one, the second column pipes (37) are located below the corresponding guide pipes (13) and are aligned with the corresponding guide pipes (13) so that the reflux liquid flowing out of the guide pipes (13) falls into the corresponding second column pipes (37).

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