CN214765307U

CN214765307U - Novel even distributor of material of petrochemical trade

Info

Publication number: CN214765307U
Application number: CN202120873842.3U
Authority: CN
Inventors: 孙杨
Original assignee: Fushun Zhengyang Petrochemical Equipment Manufacturing Co ltd
Current assignee: Fushun Zhengyang Petrochemical Equipment Manufacturing Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-19
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a novel material uniform distributor in petrochemical industry, which comprises a rain cap, a downcomer, a cofferdam, a splash plate, a connecting rod, a connecting lug and a plate; the rain cap is connected with the upper end of the downcomer through welding; the middle part of the downcomer is provided with a slotted hole as a feed inlet; two symmetrical round holes are arranged at the positions close to the slotted holes; the cofferdam and the downcomer are coaxially arranged and are welded and fixed through a connecting rod; a plurality of strip seams are arranged on the cofferdam, the splash plate is connected with the downcomer through a connecting lifting lug, and a plurality of teeth are arranged on the outer edge of the splash plate; the plate is a reactor main body plate, and a fouling space is formed between the plate and the lower end of the slotted hole. The cylindrical flap cofferdam can block floating carbon residue and asphalt colloid in the raw oil, and effectively prevents the adverse effect that the distributor is unevenly distributed and even blocked due to the fact that the carbon residue and the asphalt colloid are adhered to the central downcomer. Has strong practicability.

Description

Novel even distributor of material of petrochemical trade

Technical Field

The utility model relates to a petrochemical production facility field, concretely relates to novel material uniform distributor of petrochemical trade.

Background

The chemical industry is always an important component of social production, and particularly in recent years, China pays more attention to the development of residual oil hydrogenation technology. In the process of researching the development of the residual oil hydrogenation technology, the understanding of the process shows that the existing distributors have a phenomenon of more attachments in the hydrogenation process of the raw oil, wherein the attachments on the splashing plate are most seriously accumulated.

Particularly, the coal tar hydrogenation raw material is rich in asphaltenes, the density of the coal tar hydrogenation raw material is equivalent to that of the coal tar, a large amount of the asphaltenes can float, suspend or deposit in the feeding of the coal tar, floating foam can be formed by carbon residue, rubber powder and the asphaltenes due to the fluctuation of a liquid layer, and when the coal tar hydrogenation raw material meets a central pipe, the floating foam is attached to the surface of a downcomer under the action of molecular force (Van der Waals force) and coulomb force to form blockage in time.

When the dispenser is seriously attached, a business must stop to overhaul to clean the attached substances on the dispenser. Moreover, the existing distributor splash plate is weak in rigidity, and after the existing distributor splash plate is assembled and disassembled for several times, the splash plate is prone to have deformation hidden trouble. Therefore, such adhesion phenomenon seriously affects the continuous production of residue hydrogenation and the productivity and quality of hydrogenation products.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the above-mentioned background art, the utility model provides a novel petrochemical industry's even distributor of material.

The utility model provides a novel petrochemical trade's even distributor of material adopts following technical scheme to realize:

a novel material uniform distributor in petrochemical industry comprises rain caps, downcomers, cofferdams, splash plates, connecting rods, connecting lugs and plate plates; the rain cap is connected with the upper end of the downcomer through welding; a plurality of slender slotted holes serving as feed inlets are formed in the middle of the downcomer and are symmetrically distributed in a bidirectional mode; two symmetrical round holes are arranged at the positions close to the slotted holes; the cofferdam and the downcomer are coaxially arranged and are welded and fixed through a connecting rod; a plurality of strip seams are formed in the cofferdam, and the strip seam walls of the strip seams are outwards turned to form fins to form the tubular flap cofferdam; the diameter of the cofferdam is more than or equal to that of the downcomer; the splash plate is connected with the downcomer through a connecting lifting lug, the splash plate is in a conical umbrella shape, and the outer edge of the splash plate is provided with a plurality of teeth; the tray plate is a reactor main body tray plate and is arranged at the lower part of the downcomer in a surrounding way, and a scale deposition space is formed between the tray plate and the lower end of the slotted hole.

The utility model has the advantages that:

1. the distributor has the advantages of uniform distribution effect, smooth material circulation, great reduction of attachments and reproducible energy-saving property. Thereby helping enterprises to reduce equipment cost and improve the operation period of the hydrogenation device. The novel distributor is suitable for residual oil hydrogenation under various conditions, and is particularly suitable for a hydrogenation device of coal tar.

2. The cylindrical flap cofferdam can block floating carbon residue and asphalt colloid in the raw oil, and effectively prevents the adverse effect that the distributor is unevenly distributed and even blocked due to the fact that the carbon residue and the asphalt colloid are adhered to the central downcomer.

3. The utility model discloses mainly be applied to the distribution of material among the residual oil hydrogenation equipment, and when current distribution effect is unchangeable, the effectual wall built-up phenomenon that reduces impurity such as carbon residue and pitch colloid, avoid leading to equipment deformation scheduling problem for clearance attachment and often dismouting equipment. The device can be operated stably for a long period, so that the production cost in the hydrogenation process is saved, and the product quality is improved.

4. The utility model is suitable for a raw oil hydrogenation process that contains carbon residue, pitch colloid, like residual oil hydrogenation process, be particularly useful for coal tar hydrogenation device. Furthermore, the utility model discloses lie in keeping the unchangeable while of current distribution effect, the effectual wall built-up phenomenon that reduces impurity such as carbon residue and pitch colloid, avoid the equipment that the collision produced for desorption raw oil impurity to warp the scheduling problem, realized the stable long period operation of device to the manufacturing cost of hydrogenation process has been saved.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

Fig. 1 is a schematic view of the overall appearance structure of the present invention;

fig. 2 is a schematic structural view of the cofferdam of the present invention;

fig. 3 is a schematic structural view of a splash plate according to the present invention.

Wherein: 1-rain cap, 2-down spout, 3-cofferdam, 4-splash plate, 5-connecting rod, 6-connecting lifting lug, 7-disc plate, 8-slotted hole, 9-round hole and 10-strip seam.

Detailed Description

The invention will be further described with reference to the following examples.

The utility model aims at providing a novel petrochemical trade's even distributor of material adopts following technical scheme to realize.

The novel uniform material distributor for the petrochemical industry as shown in fig. 1-3 comprises a rain cap 1, a downcomer 2, a cofferdam 3, a splash plate 4, a connecting rod 5, a connecting lug 6 and a plate 7.

As shown in fig. 1, the rain cap 1 is a circular baffle, and is connected with the upper end of the downcomer 2 by welding through a plurality of supporting connecting pipes in a welding manner. Through the arrangement, a gap is formed between the rain cap 1 and the upper end of the downcomer 2, so that the effect of intercepting and descending the feeding is achieved, and the potential energy of the incoming materials of the distributor is stable and uniform in flow.

A plurality of slender slotted holes 8 are formed in the middle of the downcomer 2 and serve as feed inlets, the slotted holes 8 are symmetrically arranged in two directions, and the size of each slotted hole is 5-30 mm, preferably 5-8 mm; the size of the downcomer is selected according to the corresponding hydrogenation process environment through simulation calculation, and the height of the downcomer is determined through the distance between the bottom end of the cofferdam and the plate. Or the size of the downcomer 2 can be calculated physically according to the actual material feed and material composition, so as to obtain the consistent ideal size.

Two symmetrical round holes 9 are arranged at the position close to the slotted hole 8, and the round holes 9 prevent the inside and the outside of the downcomer from generating high pressure difference, avoid forming turbulence and ensure the stable jet flow of materials in the downcomer. The installation height of the downcomer 2 is determined according to the bottom end of the cofferdam 3 and the main body plate 7, and the distance between the bottom end of the cofferdam 3 and the plate is 73-100 mm, preferably 5-50 mm.

As shown in fig. 2, the cofferdam 3 and the downcomer 2 are coaxially arranged, the cofferdam 3 and the downcomer 2 are fixed by welding through a plurality of connecting rods 5, the cofferdam 3 is of a cylindrical structure, specifically, the downcomer 2 and the cofferdam 3 are fixed by welding through two ends of the connecting rods 5, and the number of the connecting rods 5 is 2-12, preferably 3-5.

As shown in figure 2, a plurality of slits 10 are formed in the cofferdam 3, the number of the slits is 2-56, preferably 4-36, the width of the slits is 3-50 mm, preferably 5-30 mm, the slit walls of the slits 10 are turned outwards to form fins, a tubular flap cofferdam is formed, the included angle between each fin and the axis is 0 degree to +/-30 degrees, preferably 0 degree to +/-10 degrees, and through the arrangement, floating scales and attached scales can be blocked, and the scales are prevented from entering the central downcomer to cause blockage of the distributor.

The diameter of the cofferdam 3 is larger than or equal to the diameter size of the downcomer 2, specifically, the diameter of the cofferdam 3 is larger than or equal to the diameter of the downcomer 2 by 10-240 mm, preferably 20-100 mm, and through the arrangement, a proper cavity can be generated and is suitable for enabling the fluid to enter the downcomer 2 after being uniformly distributed.

The splash plate 4 is connected with the downcomer 2 through a connecting lifting lug 6, the splash plate 4 shown in figure 3 is in a conical umbrella shape, the diameter of a bottom circle and the diameter of the downcomer 2 are equal in size, or the difference range is +/-20%, the outer edge of the splash plate 4 is provided with a plurality of teeth, so that the uniform distribution of liquid flow is achieved, and the number of teeth is 6-80, preferably 12-56; the depth of the teeth is 1-12 mm, preferably 3-8 mm; the included angle of the teeth is 15-90 degrees, preferably 30-60 degrees; the splash plate 4 and the downcomer 2 are fixed to both ends of each connecting lug 6 by welding, and the number of the connecting lugs 6 is 2 to 12, preferably 3 to 5 in the present embodiment.

The tray plate 7 is a reactor main body tray plate and is arranged at the lower part of the downcomer 2 in a surrounding way, and a fouling space is formed between the tray plate 7 and the lower end of the slotted hole 8 and is used for storing fouling materials in materials.

In addition, the connection between the above components may be performed by a plug-in connection method, instead of welding. Additionally, the utility model discloses the selected processing material of making selects high strength high temperature resistant, corrosion resistant alloy steel to process manufacturing according to different chemical industry process conditions to prevent that the technological environment of high temperature high pressure high corrosion from leading to equipment deformation, influence the result of use.

The utility model discloses attach and have the scaling function, cofferdam fin blocks that floated carbon residue and pitch colloid will adhere to or deposit under the effect of molecular force (van der waals 'force) and coulomb's power and follow produced scaling space under dish board and feed chute, and after storing the saturation, the accessible is washed, and modes such as blowing and sweeping are descaled, make distributor recycle to reach the purpose for consumption reduction of enterprise.

The hydrogenation process in the embodiment is a raw oil hydrogenation process containing carbon residue and pitch colloid in general, such as residual oil hydrogenation, and is particularly suitable for coal tar hydrogenation.

During operation, when the materials are sprayed to the layer surface where the distributor is located through the feeding sprayer, the rain cap 1 firstly plays a role in intercepting and descending, prevents the materials from directly contacting the inner wall of the central pipe (the down-flow pipe 2), and plays a role in primary distribution. The materials after the potential drop are gathered on the plate 7, and enter the central tube after a plurality of uniform feeding seams are formed through the cofferdam 3, floating scales and attached scales in the materials can be effectively blocked due to the interception of the outer wing walls of the plurality of feeding seams of the cofferdam 3, and the scales are prevented from entering the central tube to cause the blockage of the distributor. After the purified materials enter the central tube, the purified materials vertically impact the splash plate 4 which is provided with teeth on the outer edge of the conical umbrella shape under the action of pressure difference and gravitational potential energy, so that liquid flow is sprayed in all directions randomly, and the effect of uniform distribution of the materials is achieved.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A novel uniform material distributor in the petrochemical industry is characterized by comprising rain caps (1), downcomers (2), cofferdams (3), splash plates (4), connecting rods (5), connecting lifting lugs (6) and plate plates (7); the rain cap (1) is connected with the upper end of the downcomer (2) through welding; a plurality of slender slotted holes (8) are formed in the middle of the downcomer (2) and are used as feed inlets, and the slotted holes (8) are symmetrically distributed in a bidirectional mode; two symmetrical round holes (9) are arranged at the positions close to the slotted holes (8); the cofferdam (3) and the downcomer (2) are coaxially arranged, and the cofferdam (3) and the downcomer (2) are welded and fixed through a connecting rod (5); a plurality of strip seams (10) are formed in the cofferdam (3), and the strip seam walls of the strip seams (10) are turned outwards to form fins so as to form the tubular flap cofferdam; the diameter of the cofferdam (3) is more than or equal to that of the downcomer (2); the splash plate (4) is connected with the downcomer (2) through a connecting lifting lug (6), the splash plate is in a conical umbrella shape, and the outer edge of the splash plate is provided with a plurality of teeth; the plate (7) is a reactor main body plate and is arranged at the lower part of the downcomer (2) in a surrounding way, and a scale deposition space is formed between the plate (7) and the lower end of the slotted hole (8).

2. The novel uniform material distributor for the petrochemical industry as claimed in claim 1, wherein: the rain cap (1) is a circular baffle, and the size of the circular baffle is equal to that of the diameter of the downcomer (2); the rain cap (1) is connected with the upper end of the downcomer (2) by a plurality of supporting connecting pipes in a welding mode.

3. The novel uniform material distributor for the petrochemical industry as claimed in claim 1, wherein: the distance between the bottom end of the cofferdam (3) and the plate (7) is 3-100 mmm; the size range of the slotted hole (8) is 5-30 mm.

4. The novel uniform material distributor for petrochemical industry according to claim 3, wherein: the distance between the bottom end of the cofferdam (3) and the plate (7) is 5-50 mmm; the size range of the slotted hole (8) is 5-8 mm.

5. The novel uniform material distributor for the petrochemical industry as claimed in claim 1, wherein: the number of the connecting rods (5) is 2-12; the number of the strip seams (10) is 2-56; the width of the strip seam is 3-50 mm; the included angle between the wing panel and the axis is 0 to +/-30 degrees.

6. The novel uniform material distributor for petrochemical industry according to claim 5, wherein: the number of the connecting rods (5) is 3-5; the number of the strip seams (10) is 4-36; the width of the strip seam is 5-30 mm; the included angle between the wing panel and the axis is 0 to +/-10 degrees.

7. The novel uniform material distributor for the petrochemical industry as claimed in claim 1, wherein: the diameter of the cofferdam (3) is more than or equal to the diameter of the downcomer (2) by 10-240 mm; the diameter of the bottom circle of the splash plate (4) is equal to the diameter of the downcomer (2).

8. The novel uniform material distributor for petrochemical industry according to claim 7, wherein: the diameter of the cofferdam (3) is more than or equal to the diameter of the downcomer (2) by 20-100 mm; the diameter of the bottom circle of the splash plate (4) is different from the diameter of the downcomer (2) by +/-20%.

9. The novel uniform material distributor for the petrochemical industry as claimed in claim 1, wherein: the number of teeth of the splash plate (4) is 6-80, the depth of the teeth is 1-12 mm, and the included angle of the teeth is 15-90 degrees; the number of the connecting lifting lugs (6) is 2-12.

10. The novel material uniform distributor in petrochemical industry according to claim 9, characterized in that: the number of the teeth of the splash plate (4) is 12-56, the depth of the teeth is 3-8 mm, and the included angle of the teeth is 30-60 degrees; the number of the connecting lifting lugs (6) is 5-5.