Rectifying tower tray

Abstract

The utility model relates to the technical field of rectification chemical production equipment, and discloses a rectification tower tray which comprises a tower plate, an overflow baffle and a downcomer, the tower plate is provided with a plurality of valve holes for gas-liquid mass transfer reaction, a notch is arranged between the tower plate and the inner wall of the tower body, the overflow baffle is connected to the upper side, close to the notch, of the tower plate, and the downcomer is connected to the downcomer. The downcomer plate is connected to the lower side, close to the notch, of the tower plate, the opposite side edges of the downcomer plate are connected to supporting plates preset on the inner wall of the tower body respectively, and a downcomer channel is formed by the downcomer plate and the inner wall of the tower body; the tower plate is detachably connected to a fixing plate preset on the inner wall of the tower body through a fixing piece, a connecting piece set is arranged at the bottom of the tower plate, one end of the connecting piece set is detachably connected to a connecting plate arranged at the bottom of the tower plate through a fixing piece, and the other end of the connecting piece set is fixedly connected to the bottom of the fixing plate. The tower plate is directly connected to the fixing plate through the fixing piece, and the connecting piece group is arranged between the tower plate and the fixing plate, so that the fixing stability of the tower plate is improved.

Description

Technical Field

[0001] The present application relates to the technical field of chemical equipment, and in particular to a distillation tower tray. Background Art

[0002] The tray is the main component in the plate tower that provides a place for gas-liquid mass transfer and heat transfer. It is used to make two fluids in close contact and exchange mass between the two phases to achieve the purpose of separating the components of a liquid mixture or a gas mixture. It is generally a circular plate with many holes and often has parts that promote close contact between the two fluids.

[0003] The tray is installed in the distillation tower, refer to Figure 1 The inner wall of the tower body of the distillation tower is pre-set with an arc-shaped fixing plate 8 for installing the tower tray, and a plurality of first mounting holes 81 are opened on the fixing plate 8. Support plates 9 are symmetrically welded to the inner wall of the tower body corresponding to the positions of the two ends of the fixing plate 8, and are welded to the ends of the fixing plate 8. The support plate 9 is vertically arranged, and fixing holes 91 are opened on the support plate 9.

[0004] At present, the existing tower tray uses a clip to fix the tower tray body on the preset fixing plate of the distillation tower. When the working intensity is high, the contact area between the clip and the tower tray body and the fixing plate is small, and the clip is easily affected by external force, resulting in looseness or deformation, making the tower tray not firmly fixed, and the tower tray is deformed and damaged. Utility Model Content

[0005] In order to solve the problem of instability in tower tray installation, the present application provides a distillation tower tray.

[0006] The present application provides a distillation tray, which adopts the following technical solution:

[0007] A distillation tower plate comprises a tower plate, an overflow baffle and a downcomer plate, wherein the tower plate is provided with a plurality of valve holes for gas-liquid mass transfer reaction, a notch is provided between the tower plate and the inner wall of the distillation tower, the overflow baffle is connected to the upper side of the tower plate close to the notch, the downcomer plate is connected to the lower side of the tower plate close to the notch, the opposite sides of the downcomer plate are respectively connected to support plates preset on the inner wall of the tower body, and the downcomer plate and the inner wall of the tower body form a downcomer channel; the tower plate is detachably connected to a fixed plate preset on the inner wall of the tower body through a fixing piece, a connecting piece group is provided at the bottom of the tower plate, one end of the connecting piece group is detachably connected to the bottom of the tower plate through a fixing piece, and the other end is fixedly connected to the bottom of the fixing plate.

[0008] By adopting the above technical scheme, valve holes are arranged on the tower plate, and mass transfer reactions of gas phase and liquid phase are carried out through the valve holes; the tower plate is detachably connected to the fixed plate through fixing parts, and a connecting part group is arranged on the lower side of the connection between the tower plate and the fixed plate, so that the tower plate can be installed more firmly; the liquid is gathered on the tower plate through the overflow baffle, so that a liquid layer of a certain height is maintained on the tower plate, so that the gas phase and the liquid phase are fully mixed; the liquid is drained through the downcomer plate, and the liquid overflowing from the overflow baffle flows along the downcomer plate, so as to alleviate the impact of the liquid on the lower tower plate.

[0009] Optionally, the tower plate includes a first tower plate, a second tower plate, a third tower plate and a fourth tower plate, the first tower plate is provided with a first bending portion on a side close to the third tower plate, the second tower plate is provided with a second bending portion on a side close to the fourth tower plate, the third tower plate is provided with a third bending portion on a side close to the fourth tower plate, the first tower plate and the second tower plate are detachably connected to opposite sides of the fourth tower plate through fixings, the third tower plate is detachably connected to the first tower plate, the second tower plate and the fourth tower plate on a side away from the notch through fixings, and the first tower plate, the second tower plate and the fourth tower plate on a side away from the third tower plate are connected to the downcomer plate and the overflow baffle.

[0010] By adopting the above technical solution, the tower plate is arranged in blocks, which is convenient for the production and installation of the tower plate; by arranging the first bending portion, the second bending portion and the third bending portion, the stability of the tower plate structure is increased.

[0011] Optionally, the first bending portion and the second bending portion are each provided with a first fixing member connected to the third bending portion at one end close to the third tower plate, and the first bending portion and the second bending portion are each provided with a second fixing member connected to the downcomer plate at one end away from the third tower plate.

[0012] By adopting the above technical solution and providing the first fixing member and the second fixing member, the stability of the tower plate structure is increased.

[0013] Optionally, at least one reinforcing rib is disposed at the bottom of each of the first tower plate, the second tower plate and the fourth tower plate.

[0014] By adopting the above technical solution, reinforcing ribs are arranged at the bottom of the tower plate to increase the structural strength of the tower plate, thereby increasing the service life of the tower plate.

[0015] Optionally, the connecting member group includes a first connecting member and a second connecting member, and at least one long slot hole is opened at one end of the first connecting member or the second connecting member; the end of the first connecting member close to the long slot hole is detachably connected to a connecting plate arranged at the bottom of the tower plate through a fixing member, and the other end is fixedly connected to the bottom of the fixing plate; the end of the second connecting member close to the long slot hole is connected to the end of the third bending portion of the third tower plate through a fixing member, and the other end is fixedly connected to the bottom of the fixing plate.

[0016] By adopting the above technical solution, the connecting piece group is used to increase the stability of the connection between the tower plate and the fixed plate, so that the tower plate is fixed more firmly; a long slot hole is arranged on the connecting piece group, and the installation position of the tower plate is adjusted by adjusting the fixing position of the fixing piece in the long slot hole, so that the tower plate is located in the center of the distillation tower.

[0017] Optionally, the downcomer plate comprises a plurality of downcomer plate substrates connected end to end, the downcomer plate substrates are provided with folded edges at the connection points, a support seat is provided at one end of the downcomer plate away from the tower tray, and the support seat is connected to the downcomer plate and the next tower tray.

[0018] By adopting the above technical solution, the downcomer plate is used to drain the liquid. The downcomer plate is composed of multiple downcomer substrates. By splicing different numbers of downcomer substrates, the height of the downcomer plate is changed, so that the downcomer plate is suitable for different installation heights; a folded edge is provided at one end of the downcomer substrate to increase the structural strength of the downcomer substrate and make the structure of the downcomer plate more stable; the downcomer plate is fixed by a support seat to make the installation of the downcomer plate more secure.

[0019] Optionally, the overflow baffle includes a bottom plate and a vertical plate fixedly connected, the bottom plate and the vertical plate are perpendicular to each other, the two ends of the bottom plate are respectively connected to the first tower plate and the second tower plate, the two ends of the vertical plate are respectively connected to the support plates on both sides of the inner wall of the tower body, and the fourth tower plate is provided with a pressure plate at one end close to the downcomer plate, and the pressure plate is crimped to the bottom plate.

[0020] By adopting the above technical solution, the overflow baffle is used to maintain a liquid layer at a certain height on the tower plate, so that the gas phase and the liquid phase are fully mixed; the overflow baffle is respectively connected to the tower plate and the support plate, so that the overflow baffle is installed more firmly.

[0021] Optionally, a clearance groove adapted to one end of the fourth tower plate close to the downcomer plate is provided on the bottom plate.

[0022] By adopting the above technical solution, one end of the fourth tower plate close to the downcomer plate is placed in the clearance groove, which is convenient for the installation of the fourth tower plate.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: the tower plate is detachably connected to the fixed plate by a fixing piece, and a connecting piece group is arranged on the lower side of the connection between the tower plate and the fixed plate, so that the tower plate can be installed more firmly; the tower plate consists of a first tower plate, a second tower plate, a third tower plate and a fourth tower plate, and the tower plates are arranged in blocks to facilitate the installation of the tower plate; bending portions are arranged on the sides of the first tower plate, the second tower plate and the third tower plate, and fixing pieces are arranged at the connection between each bending portion, and reinforcing ribs are arranged at the bottom of the tower plate to increase the stability of the tower plate structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the inner wall of the distillation tower of the present application with a preset fixed plate and a support plate.

[0025] Figure 2 It is a structural schematic diagram of the distillation tower tray of this application.

[0026] Figure 3 It is a structural schematic diagram of the connection between the tower plate and the fixed plate of the present application.

[0027] Figure 4 yes Figure 2 Schematic diagram of the structure of the cross section of AA.

[0028] Figure 5 yes Figure 2 Schematic diagram of the structure of the cross section of BB.

[0029] Figure 6 It is a structural schematic diagram of the first connecting member of the present application.

[0030] Figure 7 It is a structural schematic diagram of the second connecting member of the present application.

[0031] Figure 8 It is a structural schematic diagram of the first fixing member of the present application.

[0032] Fig. 9 It is a structural schematic diagram of the second fixing member of the present application.

[0033] Fig.10 It is a structural schematic diagram of the overflow baffle of the present application.

[0034] Fig.11 It is a structural schematic diagram of the downcomer plate of the present application.

[0035] 1. Tower plate; 11. First tower plate; 111. First bending portion; 112. First fixing member; 113. Second fixing member; 12. Second tower plate; 121. Second bending portion; 13. Third tower plate; 131. Third bending portion; 14. Fourth tower plate; 15. Second mounting hole; 16. Connector group; 161. First connecting member; 162. Second connecting member; 163. Long slot hole; 17. Notch; 18. Valve hole; 2. Overflow baffle; 21. Bottom plate; 211. Make way groove; 22. Vertical plate; 3. Downcomer plate; 31. Downcomer base plate; 311. Folding edge; 4. Connecting plate; 5. Support seat; 6. Reinforcing rib; 7. Pressing plate; 8. Fixing plate; 81. First mounting hole; 9. Support plate; 91. Fixing hole. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.

[0037] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0038] The present application embodiment discloses a distillation tray, referring to Figure 2 and Figure 3 , including a tower plate 1, an overflow baffle 2 and a downcomer plate 3. The tower plate 1 is provided with a plurality of valve holes 18 for gas-liquid mass transfer reaction. An arched notch 17 is provided between the tower plate 1 and the inner wall of the tower body. The overflow baffle 2 is connected to the upper side of the tower plate 1 near the notch 17. A second mounting hole 15 is provided at the edge of the tower plate 1 corresponding to the first mounting hole 81 on the fixed plate 8. The tower plate 1 is detachably connected to the fixed plate 8 by bolts passing through the second mounting hole 15 and the first mounting hole 81 in sequence and cooperating with pre-welded nuts. A connector group 16 is provided at the bottom of the tower plate 1. One end of the connector group 16 is detachably connected to the bottom of the tower plate 1 through a fixing member, and the other end is fixedly connected to the bottom of the fixed plate 8.

[0039] Reference Figure 2 and Figure 4 The top of the downcomer plate 3 is connected to the lower side of the tower plate 1 near the notch 17, and the two opposite sides of the downcomer plate 3 are respectively connected to the support plate 9. A downcomer channel is formed between the downcomer plate 3 and the inner wall of the tower body, and the liquid overflowing from the overflow baffle 2 flows into the next layer through the downcomer channel.

[0040] Reference Figure 2 , Figure 4 and Figure 5 The tower plate 1 includes a first tower plate 11, a second tower plate 12, a third tower plate 13 and a fourth tower plate 14. The first tower plate 11 and the second tower plate 12 are connected to opposite sides of the fourth tower plate 14, and the third tower plate 13 is connected to the first tower plate 11, the second tower plate 12 and the third tower plate 13 on the side away from the notch 17. The first tower plate 11 and the second tower plate 12 have the same structure. The first tower plate 11 and the second tower plate 12 are both arc-shaped structures on the side close to the inner wall of the tower body. The first tower plate 11 is provided with a first bending portion 111 on the side away from the inner wall of the tower body, and the second tower plate 12 is provided with a second bending portion 121 on the side away from the inner wall of the tower body. The first tower plate 11 and the second tower plate 12 are both welded with a connecting plate 4 on the lower side of the middle of the arc side edges close to the fixed plate 8. The third tower plate 13 is an arched structure, and the third tower plate 13 is provided with a third bending portion 131 on the side away from the inner wall of the tower body. The fourth tower plate 14 is of a rectangular structure, and a plurality of oblong holes for bolts to pass through are arranged at the edge of the fourth tower plate 14 , so that the installation position of the fourth tower plate 14 can be finely adjusted during installation through the oblong holes.

[0041] A plurality of valve holes 18 are provided on the first tower plate 11, the second tower plate 12 and the fourth tower plate 14. The bottoms of the first tower plate 11, the second tower plate 12 and the fourth tower plate 14 are each provided with at least one reinforcing rib 6 to increase the stability of the tower plate structure. The second mounting hole 15 is opened on the arc-shaped side of the first tower plate 11, the second tower plate 12 and the fourth tower plate 14.

[0042] Reference Figure 2 , Figure 6 and Figure 7 The connecting member group 16 includes a first connecting member 161 and a second connecting member 162. At least one long slot hole 163 is opened at one end of the first connecting member 161 or the second connecting member 162. The first connecting member 161 is detachably connected to the connecting plate 4 set at the bottom of the tower plate 1 at one end thereof by means of bolts and nuts, and the other end thereof is welded to the bottom of the fixing plate 8. The second connecting member 162 is detachably connected to the end of the third bending portion 131 of the third tower plate 13 at one end thereof by means of bolts and nuts, and the other end thereof is welded to the bottom of the fixing plate 8.

[0043] Reference Figure 2 and Figure 8 The first bending portion 111 and the second bending portion 121 are both provided with a first fixing member 112 connected to the third bending portion 131 at one end close to the third tower plate 13 .

[0044] Reference Figure 2 and Fig. 9The first bending portion 111 and the second bending portion 121 are both provided with a second fixing member 113 connected to the downcomer plate 3 at one end away from the third tower plate 13 .

[0045] Reference Figure 2 and Fig.10 The overflow baffle 2 includes a bottom plate 21 and a vertical plate 22 which are fixedly connected. The bottom plate 21 and the vertical plate 22 are perpendicular to each other. The bottom plate 21 is placed horizontally. Mounting holes are provided at both ends of the bottom plate 21. A clearance groove 211 is provided in the middle of the bottom plate 21 to adapt to the end of the fourth tower plate 14 away from the third tower plate 13, so as to facilitate the installation of the fourth tower plate 14.

[0046] Reference Fig.11 The downcomer 3 includes a plurality of downcomer substrates 31 connected at the ends, and a folded edge 311 is provided at one end of the downcomer substrate 31 to increase the structural strength of the downcomer substrate 31. The downcomer 3 can be connected to a corresponding number of downcomer substrates 31 according to the distance between adjacent trays. A support seat 5 is provided at one end of the downcomer 3 away from the tray 1, and the support seat 5 is used to fix the downcomer 3. The support seat 5 is respectively connected to the end of the downcomer 3 and the next tray 1 by bolts and nuts.

[0047] The implementation principle of a distillation tray in the embodiment of the present application is as follows: the tray 1 is detachably connected to the upper side of the fixed plate 8 by means of bolts and nuts, and the connection between the tray 1 and the fixed plate 8 is reinforced by means of the first connecting member 161 and the second connecting member 162; and the connection between the tray 1 and the fixed plate 8 is reinforced by means of the first fixing member 112 and the second fixing member 113.

[0048] The first tray 11 and the second tray 12 are connected to the third tray 13 and the downcomer tray 3 to increase the structural stability of the tray;

[0049] A bending portion is provided on one side of the first tower plate 11, the second tower plate 12 and the third tower plate 13, and a reinforcing rib 6 is provided at the bottom of the tower plate 1 to increase the structural strength of the tower plate 1, prevent the tower plate 1 from being deformed by external forces, and increase the service life of the tower plate.

[0050] When in use, the liquid flows from the upper downcomer plate 3 to the tower plate 1. Under the action of the overflow baffle 2, the liquid accumulates on the tower plate 1 to form a liquid layer of a certain height, and the gas phase undergoes mass transfer reaction with the liquid layer through the valve hole 18. When the liquid level exceeds the height of the overflow baffle 2, the liquid overflows from the overflow baffle 2 and flows along the downcomer plate 3 to the next tower plate.

[0051] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A distillation tray, characterized in that: The invention comprises a tower plate (1), an overflow baffle plate (2) and a downcomer plate (3); the tower plate (1) is provided with a plurality of valve holes (18) for gas-liquid mass transfer reaction; a notch (17) is provided between the tower plate (1) and the inner wall of the tower body; the overflow baffle plate (2) is connected to the upper side of the tower plate (1) close to the notch (17); the downcomer plate (3) is connected to the lower side of the tower plate (1) close to the notch (17); the opposite sides of the downcomer plate (3) are respectively connected to support plates (9) preset on the inner wall of the tower body; the downcomer plate (3) and the inner wall of the tower body form a downcomer channel; the tower plate (1) is detachably connected to a fixed plate (8) preset on the inner wall of the tower body through a fixing piece; a connecting piece group (16) is provided at the bottom of the tower plate (1); one end of the connecting piece group (16) is detachably connected to the bottom of the tower plate (1) through a fixing piece, and the other end is fixedly connected to the bottom of the fixing plate (8).

2. The distillation tray according to claim 1, characterized in that The tower plate (1) comprises a first tower plate (11), a second tower plate (12), a third tower plate (13) and a fourth tower plate (14); a first bending portion (111) is provided on a side of the first tower plate (11) close to the third tower plate (13); a second bending portion (121) is provided on a side of the second tower plate (12) close to the fourth tower plate (14); a third bending portion (131) is provided on a side of the third tower plate (13) close to the fourth tower plate (14); The second tower plate (12) is detachably connected to the side opposite to the fourth tower plate (14) via a fixing member, the third tower plate (13) is detachably connected to the first tower plate (11), the second tower plate (12) and the fourth tower plate (14) on a side away from the notch (17) via a fixing member, and the first tower plate (11), the second tower plate (12) and the fourth tower plate (14) on a side away from the third tower plate (13) are connected to the downcomer plate (3) and the overflow baffle (2).

3. The distillation tray according to claim 2, characterized in that: The first bending portion (111) and the second bending portion (121) are each provided with a first fixing member (112) connected to the third bending portion (131) at one end close to the third tower plate (13), and the first bending portion (111) and the second bending portion (121) are each provided with a second fixing member (113) connected to the downcomer plate (3) at one end away from the third tower plate (13).

4. The distillation tray according to claim 2, characterized in that: At least one reinforcing rib (6) is provided at the bottom of each of the first tower plate (11), the second tower plate (12) and the fourth tower plate (14).

5. The distillation tray according to claim 2, characterized in that: The connecting member group comprises a first connecting member (161) and a second connecting member (162); one end of the first connecting member (161) or the second connecting member (162) is provided with at least one long slot hole (163); one end of the first connecting member (161) close to the long slot hole (163) is detachably connected to a connecting plate (4) provided at the bottom of the tower plate (1) through a fixing member, and the other end is fixedly connected to the bottom of the fixing plate (8); one end of the second connecting member (162) close to the long slot hole (163) is connected to the end of the third bending portion (131) of the third tower plate (13) through a fixing member, and the other end is fixedly connected to the bottom of the fixing plate (8).

6. The distillation tray according to claim 1, characterized in that: The downcomer plate (3) comprises a plurality of downcomer base plates (31) connected end to end, the downcomer base plates (31) being provided with folded edges (311) at the connection positions, and a support seat (5) being provided at one end of the downcomer plate (3) away from the tower plate, the support seat (5) being connected to the downcomer plate (3) and the tower plate (1) of the next layer.

7. The distillation tray according to claim 2, characterized in that: The overflow baffle (2) comprises a bottom plate (21) and a vertical plate (22) which are fixedly connected, the bottom plate (21) and the vertical plate (22) being perpendicular to each other, the two ends of the bottom plate (21) being respectively connected to the first tower plate (11) and the second tower plate (12), the two ends of the vertical plate (22) being respectively connected to the support plates (9) on both sides of the inner wall of the tower body, and a pressure plate (7) is provided at one end of the fourth tower plate (14) close to the downcomer plate (3), and the pressure plate (7) is press-connected to the bottom plate (21).

8. The distillation tray according to claim 7, characterized in that: The bottom plate (21) is provided with a clearance groove (211) adapted to fit one end of the fourth tower plate (14) close to the downcomer plate (3).

Images