Three-stage distributor with small liquid amount

Abstract

The invention discloses a small liquid volume three-stage distributor, which comprises a plurality of first-stage main tanks, a plurality of second-stage branch tanks and a plurality of distribution boxes, the second-stage branch tanks are arranged below the first-stage main tanks, the plurality of distribution boxes are uniformly arranged at the bottoms of the second-stage branch tanks at intervals, the bottoms of the distribution boxes are provided with a plurality of spray holes, and the spray holes are communicated with the first-stage main tanks. Compared with the prior art, the spray distribution device has the advantages that the defect of poor spray distribution effect during small-flow spray in the prior art can be overcome, and the spray distribution device is simple in structure and low in production cost.

Description

Technical Field

[0001] The invention relates to the technical field of distributors, in particular to a small liquid volume three-stage distributor. Background Art

[0002] The liquid distributor is a critical internal part in the packed tower. It not only affects the mass transfer efficiency of the packing, but also affects the operational elasticity of the packing. In order to reduce the amplification effect caused by poor liquid distribution and give full play to the efficiency of the packing, a liquid distributor must be installed in the packed tower to evenly distribute the liquid on the top of the packing layer. The quality of the initial distribution of the liquid not only affects the mass transfer efficiency of the packing, but also affects the operational elasticity of the packing. Therefore, the liquid distributor is a critical internal part in the packed tower. There are many types of distributors, and the selection is mainly based on distribution quality, operational elasticity, processing capacity, gas resistance, horizontality and many other aspects.

[0003] The liquid volume of the absorption tower is 10-12m³ / h, and the spray density is 0.33-0.39m³ / (㎡·h). This is a working condition with very little liquid volume. The liquid distributor currently used is a large-flow trough distributor. It has the defect of poor spray distribution effect when spraying at a small flow rate, which affects the separation effect of the filler and cannot meet the requirements of high-quality product production. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a small liquid volume three-stage distributor, which can solve the defect of poor spray distribution effect when spraying with a small flow rate in the prior art, and has a simple structure and low production cost.

[0005] To achieve the above-mentioned purpose, the present invention proposes a small liquid volume three-stage distributor, including a plurality of primary main grooves, a plurality of secondary branch grooves and a plurality of distribution boxes, wherein a secondary branch groove is arranged below the primary main groove, a plurality of distribution boxes evenly spaced are arranged at the bottom of the secondary branch grooves, a plurality of spray holes are arranged at the bottom of the distribution boxes, and a connecting pipe corresponding to the distribution box thereon is arranged in each of the secondary branch grooves, the lower end of the connecting pipe is connected to the corresponding distribution box, and a plurality of liquid inlet holes are arranged on the connecting pipe.

[0006] Preferably, there are two primary main grooves, the two primary main grooves are arranged horizontally in parallel, the secondary branch grooves are arranged horizontally in parallel, and the primary main groove and the secondary branch grooves are arranged perpendicular to each other.

[0007] Preferably, connecting feet are provided on both sides of the primary main groove, and the connecting feet are fixedly connected to a connecting seat by a bolt pair I, and the connecting seat is arranged between the corresponding two secondary branch grooves.

[0008] Preferably, the secondary branch grooves are arranged in groups of two, and the two secondary branch grooves in each group are connected by a plurality of connecting grooves.

[0009] Preferably, except for the front and rear two groups, connecting plates are provided between the two ends of the two secondary branch grooves of the remaining groups.

[0010] Preferably, the secondary branch groove is provided with two channel steel beams arranged perpendicularly thereto, the lower end of the channel steel beam is fixedly connected to a channel seat by a bolt pair II, and the channel seat is welded to the corresponding secondary branch groove.

[0011] Preferably, the height of the upper end of the connecting pipe is lower than the notch of the secondary branch groove, and the connecting pipe is provided with two upper and lower liquid inlet holes.

[0012] Preferably, the spray holes are distributed around the center of the circle to form two circles, the outer circle diameter is 60 mm, the inner circle diameter is 40 mm, the diameter of the spray holes is 2 mm, and the number of spray holes in the outer circle is twice the number of spray holes in the inner circle.

[0013] Preferably, the distribution box is circular in shape.

[0014] Beneficial effects of the present invention: The present invention provides a plurality of distribution boxes evenly spaced at the bottom of the secondary branch groove, a plurality of spray holes at the bottom of the distribution box, and a connecting tube corresponding to the distribution box thereon in each of the secondary branch grooves, the lower end of the connecting tube is connected to the corresponding distribution box, and a plurality of liquid inlet holes are provided on the connecting tube. The secondary branch groove ensures uniform diversion of the distribution box at a small flow rate through the cooperation of the connecting tube and the liquid inlet hole. Compared with the prior art, the defect of poor spray distribution effect in the prior art during small flow rate spraying can be solved, and the structure is simple and the production cost is low.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view structural schematic diagram of a small liquid volume three-stage distributor of the present invention; Figure 2 It is a partial side view of a small liquid volume three-stage distributor of the present invention; Figure 3 It is a partial top view of a three-stage distributor with a small liquid volume according to the present invention; Figure 4 It is the distribution diagram of the spray holes.

[0017] In the figure: 1-primary main groove, 2-secondary branch groove, 3-distribution box, 4-spray hole, 5-connecting pipe, 6-liquid inlet hole, 7-connecting foot, 8-bolt pair I, 9-connecting seat, 10-connecting groove, 11-connecting plate, 12-channel steel beam, 13-channel seat, 14-bolt pair II. DETAILED DESCRIPTION

[0018] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention discloses a small liquid volume three-stage distributor, comprising a plurality of primary main grooves 1, a plurality of secondary branch grooves 2 and a plurality of distribution boxes 3. A secondary branch groove 2 is provided below the primary main groove 1, a plurality of distribution boxes 3 evenly spaced are provided at the bottom of the secondary branch groove 2, a plurality of spray holes 4 are provided at the bottom of the distribution box 3, a connecting pipe 5 corresponding to the distribution box 3 thereon is provided in each of the secondary branch grooves 2, a lower end of the connecting pipe 5 is connected to the corresponding distribution box 3, and a plurality of liquid inlet holes 6 are provided on the connecting pipe 5.

[0019] There are two primary main grooves 1, and the two primary main grooves 1 are arranged horizontally and in parallel. The secondary branch grooves 2 are arranged horizontally and in parallel. The primary main grooves 1 and the secondary branch grooves 2 are arranged perpendicular to each other.

[0020] Connecting feet 7 are provided on both sides of the primary main groove 1, and the connecting feet 7 are fixedly connected to a connecting seat 9 through a bolt pair I8. The connecting seat 9 is arranged between the corresponding two secondary branch grooves 2.

[0021] The secondary branch grooves 2 are arranged in groups of two, and the two secondary branch grooves 2 in each group are connected through a plurality of connecting grooves 10 .

[0022] Except for the front and rear two groups, connecting plates 11 are provided between the two ends of the two secondary branch grooves 2 of the remaining groups.

[0023] The secondary branch groove 2 is provided with two channel steel beams 12 arranged perpendicularly thereto, the lower end of the channel steel beam 12 is fixedly connected to a channel seat 13 by a bolt pair II14, and the channel seat 13 is welded to the corresponding secondary branch groove 2.

[0024] The upper end of the connecting pipe 5 is lower than the slot of the secondary branch slot 2 , and the connecting pipe 5 is provided with two upper and lower liquid inlet holes 6 .

[0025] The spray holes 4 are distributed around the center of the circle to form two circles, the outer circle diameter is 60 mm, the inner circle diameter is 40 mm, the diameter of the spray holes 4 is 2 mm, and the number of the spray holes 4 in the outer circle is twice the number of the spray holes 4 in the inner circle.

[0026] The distribution box 3 is circular in shape.

[0027] Working process of the present invention: In the working process of the small liquid volume three-stage distributor of the present invention, the liquid in the first-level main tank 1 is divided into the second-level branch tank 2. When the liquid in the second-level branch tank 2 reaches a certain amount, it first enters the connecting pipe 5 from the bottom liquid inlet hole 6, then enters the corresponding distribution box 3, and finally sprays out from the spray hole 4.

[0028] The three-level distribution box of the present application has a simple structure, can be mass-produced, and can be flexibly adjusted in size according to needs. No special mold is required, and ordinary laser cutting can be achieved. The size and openings of the distribution box can be adjusted according to the needs of the designer and working conditions, which increases the scope of use and operational flexibility.

[0029] Compared with other two-stage or three-stage distributors, it has a simple structure, is easy to process, is light in weight, and is relatively cheap. The height of the secondary trough can be appropriately reduced, and side baffles or liquid drop angles are no longer required on both sides, so the weight of the distributor is reduced.

[0030] The distribution box components are not easily deformed when encountering collisions and are easy to preserve. There is no need for "secondary plastic surgery" at the installation site, such as: during transportation and on-site installation; the claw-type distributor requires the distribution feet to be "bent" on site.

[0031] The installation space requirement is the same as that of an ordinary two-stage distributor, and no additional installation space is required like the distribution feet of other three-stage distributors.

[0032] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A small liquid volume three-stage distributor, characterized in that: The invention comprises a plurality of primary main grooves (1), a plurality of secondary branch grooves (2) and a plurality of distribution boxes (3), wherein a secondary branch groove (2) is provided below the primary main groove (1), a plurality of distribution boxes (3) are provided at even intervals at the bottom of each of the secondary branch grooves (2), a plurality of spray holes (4) are provided at the bottom of each of the distribution boxes (3), a connecting pipe (5) corresponding to the distribution box (3) thereon is provided in each of the secondary branch grooves (2), the lower end of each of the connecting pipes (5) is connected to the corresponding distribution box (3), and a plurality of liquid inlet holes (6) are provided on each of the connecting pipes (5).

2. A small liquid volume three-stage distributor as claimed in claim 1, characterized in that: There are two first-level main grooves (1), the two first-level main grooves (1) are arranged horizontally and in parallel, the second-level branch grooves (2) are arranged horizontally and in parallel, and the first-level main grooves (1) and the second-level branch grooves (2) are arranged perpendicular to each other.

3. A small liquid volume three-stage distributor as claimed in claim 1, characterized in that: Connecting feet (7) are provided on both sides of the primary main groove (1), and the connecting feet (7) are fixedly connected to a connecting seat (9) via a bolt pair I (8), and the connecting seat (9) is arranged between the corresponding two secondary branch grooves (2).

4. A small liquid volume three-stage distributor as claimed in claim 1, characterized in that: The secondary branch grooves (2) are arranged in groups of two, and the two secondary branch grooves (2) in each group are connected via a plurality of connecting grooves (10).

5. A small liquid volume three-stage distributor as claimed in claim 4, characterized in that: Except for the front and rear two groups, connecting plates (11) are provided between the two ends of the two secondary branch grooves (2) of the remaining groups.

6. A small liquid volume three-stage distributor as claimed in claim 1, characterized in that: The secondary branch groove (2) is provided with two channel steel beams (12) arranged perpendicularly thereto, the lower end of the channel steel beam (12) is fixedly connected to a channel seat (13) via a bolt pair II (14), and the channel seat (13) is welded to the corresponding secondary branch groove (2).

7. A small liquid volume three-stage distributor as claimed in claim 1, characterized in that: The height of the upper end of the connecting pipe (5) is lower than the slot opening of the secondary branch slot (2), and the connecting pipe (5) is provided with two upper and lower liquid inlet holes (6).

8. A small liquid volume three-stage distributor as claimed in claim 1, characterized in that: The spray holes (4) are distributed around the center of the circle to form two circles, the outer circle has a diameter of 60 mm, the inner circle has a diameter of 40 mm, the diameter of the spray holes (4) is 2 mm, and the number of the spray holes (4) in the outer circle is twice the number of the spray holes (4) in the inner circle.

9. A small liquid volume three-stage distributor according to any one of claims 1 to 8, characterized in that: The distribution box (3) is circular in shape.

Images