Multi-stage accurate control tower tray

Abstract

The utility model provides a multi-stage accurate control tray, which relates to the field of article screening and comprises a liquid receiving tray, a plurality of screen holes are arranged on the surface of the liquid receiving tray, two groups of slide bars are arranged at the bottom of the liquid receiving tray side by side, movable screens are arranged at the bottoms of the slide bars, and the size of the movable screens is smaller than that of the liquid receiving tray. A plurality of screen holes are formed in the surface of the movable screen and are aligned with the screen holes in the surface of the liquid receiving disc, two sets of connecting blocks are arranged at the bottom of the movable screen, a threaded rod penetrates through the middles of the connecting blocks, a supporting block is arranged on one side of the threaded rod, and a driving motor is arranged on the other side of the threaded rod. The threaded rod drives the movable screen to move in the direction of the sliding rod through the connecting block, the overlapping area of the movable screen and screen holes in the surface of the liquid receiving disc is changed, and therefore the speed of gas passing through the liquid receiving disc is controlled, the heat and mass exchange speed between the gas and liquid is adjusted, and the production requirement is better met.

Description

Technical Field

[0001] The utility model relates to the field of object screening, in particular to a multi-stage precise control tower plate. 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 allows two fluids to closely exchange heat and mass between the two phases to achieve the purpose of separating the components of a liquid mixture or a gas mixture. It is mainly composed of gas-liquid contact elements (such as float valves, bubbles, sieve holes, etc.), liquid receiving trays, overflow weirs, downcomers (or downcomers), tray supports and fasteners. When the tower diameter is small, each layer of tray is a whole piece, which is called a monolithic tray.

[0003] The existing sieve hole trays usually have a fixed sieve hole size, and it is impossible to change the size of the sieve according to actual conditions to change the speed at which the gas passes through the sieve holes, which is not conducive to the heat and mass exchange between gas and liquid. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the problem that the size of the sieve holes of the sieve hole tower plate cannot be adjusted, which affects the heat and mass exchange between gas and liquid, and a multi-level precise control tower plate is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-stage precise control tower plate, including a liquid receiving plate, a plurality of sieve holes are provided on the surface of the liquid receiving plate, two groups of sliding rods are arranged side by side at the bottom of the liquid receiving plate, a movable screen is provided at the bottom of the sliding rod, the size of the movable screen is smaller than the size of the liquid receiving plate, a plurality of sieve holes are provided on the surface of the movable screen and are aligned with the sieve holes on the surface of the liquid receiving plate, two groups of connecting blocks are provided at the bottom of the movable screen, a threaded rod passes through the middle of the connecting block, a support block is provided on one side of the threaded rod, and a driving motor is provided on the other side of the threaded rod.

[0006] Preferably, the connecting block is T-shaped, and the connecting block is threadedly connected to the movable screen.

[0007] Preferably, the slide bar is trapezoidal, the top of the slide bar is fixedly connected to the liquid receiving pan, the length of the slide bar is smaller than the diameter of the liquid receiving pan, and the width of the movable screen is smaller than the length of the liquid receiving pan.

[0008] Preferably, a baffle is provided on the side of the liquid receiving pan, the baffle is in a circular shape, an outlet weir is provided on one side of the interior of the baffle, and an inlet weir is provided on the other side of the interior of the baffle.

[0009] Preferably, the outlet weir and the inlet weir are both fixedly connected to the baffle, and the height of the outlet weir is lower than the height of the inlet weir.

[0010] Preferably, a downcomer is provided between the outlet weir and the baffle, a water inlet is provided at the top of one side of the downcomer, a water outlet is provided at the bottom of the downcomer, and the top surface height of the outlet weir is lower than the top surface height of the water inlet.

[0011] Preferably, a mounting block is provided at the bottom of one side of the downcomer, a cylinder is provided on the top of the mounting block, and the cylinder is fixedly connected to the bottom of the liquid receiving pan.

[0012] Beneficial Effects

[0013] In the utility model, a movable screen, a driving motor, a connecting block and a threaded rod are adopted. The driving motor drives the threaded rod to rotate, and the threaded rod drives the movable screen to move along the direction of the sliding rod through the connecting block, thereby changing the overlapping area of ​​the movable screen and the sieve holes on the surface of the liquid receiving plate, thereby controlling the speed of gas passing through the liquid receiving plate, adjusting the heat and mass exchange speed between the gas and the liquid, and better meeting the production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an axonometric drawing of the utility model;

[0015] Figure 2 It is a bottom axonometric view of the utility model;

[0016] Figure 3 It is a front view of the utility model;

[0017] Figure 4 For the utility model Figure 2 Structure diagram of A

[0018] Figure 5 This is an axonometric view of the bottom of the downcomer of the utility model.

[0019] Legend:

[0020] 1. Downcomer; 2. Outlet weir; 3. Screen hole; 4. Liquid receiving tray; 5. Baffle; 6. Inlet weir; 7. Movable screen; 8. Driving motor; 9. Support block; 10. Connecting block; 11. Threaded rod; 12. Cylinder; 13. Mounting block; 14. Sliding rod; 15. Water inlet; 16. Water outlet. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0022] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0024] Reference Figure 1-5 The present embodiment provides a multi-stage precise control tower plate, including a liquid receiving plate 4, the liquid receiving plate 4 stores liquid, a plurality of sieve holes 3 are arranged on the surface of the liquid receiving plate 4, air moves from the bottom of the liquid receiving plate 4 to the top of the liquid receiving plate 4 through the sieve holes 3, two sets of slide bars 14 are arranged side by side at the bottom of the liquid receiving plate 4, a movable screen 7 is arranged at the bottom of the slide bar 14, the movable screen 7 slides along the slide bar 14, the slide bar 14 is trapezoidal, the top of the slide bar 14 is fixedly connected to the liquid receiving plate 4, the length of the slide bar 14 is less than the diameter of the liquid receiving plate 4, and the width of the movable screen 7 is less than the diameter of the liquid receiving plate 4. The movable screen 7 is smaller than the liquid receiving pan 4, a plurality of sieve holes 3 are arranged on the surface of the movable screen 7 and are aligned with the sieve holes 3 on the surface of the liquid receiving pan 4, two groups of connecting blocks 10 are arranged at the bottom of the movable screen 7, the connecting block 10 is T-shaped, the connecting block 10 is threadedly connected to the movable screen 7, a threaded rod 11 runs through the middle of the connecting block 10, a support block 9 is arranged on one side of the threaded rod 11, a driving motor 8 is arranged on the other side of the threaded rod 11, the driving motor 8 drives the threaded rod 11 to rotate, and the threaded rod 11 drives the movable screen 7 through the connecting block 10 Move along the direction of the slide bar 14, a baffle 5 is provided on the side of the liquid receiving pan 4, the baffle 5 prevents the liquid from flowing out from the side of the liquid receiving pan 4, the baffle 5 is in a circular shape, an outlet weir 2 is provided on one side of the baffle 5, and an inlet weir 6 is provided on the other side of the baffle 5, the outlet weir 2 and the inlet weir 6 both block the liquid, so that part of the liquid accumulates on the surface of the liquid receiving pan 4 and contacts the air passing through the liquid receiving pan 4, the outlet weir 2 and the inlet weir 6 are both fixedly connected to the baffle 5, the height of the outlet weir 2 is lower than the height of the inlet weir 6, so that when there is too much liquid on the top of the liquid receiving pan 4, The liquid leaves the liquid receiving tray 4 through the outlet weir 2. A downcomer 1 is provided between the outlet weir 2 and the baffle 5. The liquid enters the next group of trays through the downcomer 1. A water inlet 15 is provided at the top of one side of the downcomer 1. A water outlet 16 is provided at the bottom of the downcomer 1. The liquid enters the downcomer 1 from the water inlet 15 and leaves the downcomer 1 from the water outlet 16. The top surface height of the outlet weir 2 is lower than the top surface height of the water inlet 15. A mounting block 13 is provided at the bottom of one side of the downcomer 1. A cylinder 12 is provided at the top of the mounting block 13. The cylinder 12 is fixedly connected to the bottom of the liquid receiving tray 4.

[0025] The user installs the tower tray inside the distillation tower, air enters the distillation tower from the bottom of the distillation tower, liquid enters the distillation tower from the top of the distillation tower and reaches the surface of the liquid receiving tray 4, the air moves from the bottom of the liquid receiving tray 4 to the top of the liquid receiving tray 4 through the sieve holes 3 and contacts with the liquid inside the liquid receiving tray 4 to exchange heat and mass, the driving motor 8 drives the threaded rod 11 to rotate, the threaded rod 11 drives the movable screen 7 to move along the direction of the slide rod 14 through the connecting block 10, and changes the overlapping area of ​​the movable screen 7 and the sieve holes 3 on the surface of the liquid receiving tray 4. When the overlapping area of ​​the sieve holes 3 becomes larger, more gas passes through the liquid receiving tray 4 per unit time, and the heat and mass exchange rate between the gas and the liquid is adjusted to better meet the production needs. Excessive liquid leaves the tower tray from the outlet weir 2 and enters the next group of tower trays through the downcomer 1. The liquid leaves the distillation tower from the bottom of the distillation tower after leaving the bottom group of tower trays. Specific embodiment 2:

[0027] Reference Figure 1-5 The present embodiment provides a multi-stage precise control tower plate, including a liquid receiving tray 4, a baffle 5 is provided on the side of the liquid receiving tray 4, an outlet weir 2 is provided on one side of the baffle 5, a downcomer 1 is provided between the outlet weir 2 and the baffle 5, a water inlet 15 is provided on the top of one side of the downcomer 1, a water outlet 16 is provided on the bottom of the downcomer 1, the top surface height of the outlet weir 2 is lower than the top surface height of the water inlet 15, a mounting block 13 is provided on the bottom of one side of the downcomer 1, a cylinder 12 is provided on the top of the mounting block 13, the cylinder 12 is fixedly connected to the bottom of the liquid receiving tray 4, the cylinder 12 drives the downcomer 1 to move longitudinally through the mounting block 13, changes the distance between the top surface of the outlet weir 2 and the top surface of the water inlet 15, thereby controlling the speed of the liquid entering the next tower plate, and adjusting the heat and mass exchange speed between the gas and the liquid.

[0028] In summary:

[0029] A movable screen 7, a driving motor 8, a connecting block 10 and a threaded rod 11 are used. The driving motor 8 drives the threaded rod 11 to rotate, and the threaded rod 11 drives the movable screen 7 to move along the direction of the sliding rod 14 through the connecting block 10, thereby changing the overlapping area of ​​the movable screen 7 and the sieve holes 3 on the surface of the liquid receiving plate 4. When the overlapping area of ​​the sieve holes 3 becomes larger, more gas passes through the liquid receiving plate 4 per unit time, and the heat and mass exchange speed between the gas and the liquid is adjusted to better meet the production needs.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-stage precise control tower tray, comprising a liquid receiving tray (4), characterized in that: The surface of the liquid receiving pan (4) is provided with a plurality of sieve holes (3), the bottom of the liquid receiving pan (4) is provided with two groups of sliding rods (14) side by side, the bottom of the sliding rods (14) is provided with a movable screen (7), the size of the movable screen (7) is smaller than the size of the liquid receiving pan (4), the surface of the movable screen (7) is provided with a plurality of sieve holes (3) and is aligned with the sieve holes (3) on the surface of the liquid receiving pan (4), the bottom of the movable screen (7) is provided with two groups of connecting blocks (10), a threaded rod (11) passes through the middle of the connecting block (10), a support block (9) is provided on one side of the threaded rod (11), and a driving motor (8) is provided on the other side of the threaded rod (11).

2. A multi-stage precise control tower tray according to claim 1, characterized in that: The connecting block (10) is T-shaped, and the connecting block (10) is threadedly connected to the movable screen (7).

3. A multi-stage precise control tower tray according to claim 1, characterized in that: The slide bar (14) is trapezoidal in shape, the top of the slide bar (14) is fixedly connected to the liquid receiving pan (4), the length of the slide bar (14) is smaller than the diameter of the liquid receiving pan (4), and the width of the movable screen (7) is smaller than the length of the liquid receiving pan (4).

4. The multi-stage precise control tower tray according to claim 1, characterized in that: A baffle (5) is provided on the side of the liquid receiving pan (4), the baffle (5) is in a circular shape, an outlet weir (2) is provided on one side of the baffle (5), and an inlet weir (6) is provided on the other side of the baffle (5).

5. A multi-stage precise control tower tray according to claim 4, characterized in that: The outlet weir (2) and the inlet weir (6) are both fixedly connected to the baffle (5), and the height of the outlet weir (2) is lower than the height of the inlet weir (6).

6. A multi-stage precise control tower tray according to claim 4, characterized in that: A downcomer (1) is provided between the outlet weir (2) and the baffle (5); a water inlet (15) is provided at the top of one side of the downcomer (1); a water outlet (16) is provided at the bottom of the downcomer (1); and the top surface of the outlet weir (2) is lower than the top surface of the water inlet (15).

7. A multi-stage precise control tower tray according to claim 6, characterized in that: A mounting block (13) is provided at the bottom of one side of the downcomer (1), a cylinder (12) is provided at the top of the mounting block (13), and the cylinder (12) is fixedly connected to the bottom of the liquid receiving pan (4).

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