CN212855027U

CN212855027U - Rectangular wire mesh demister

Info

Publication number: CN212855027U
Application number: CN202021366039.2U
Authority: CN
Inventors: 赵宏伟; 李广民; 贾贝贝; 杨红星
Original assignee: Shanxi Yangmei Chemical Industry Machinery Group Co Ltd
Current assignee: Shanxi Yangmei Chemical Industry Machinery Group Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-02
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to a silk screen demister in chemical equipment, in particular to a rectangular silk screen demister, which solves the technical problems in the background technology and comprises a rectangular cylinder body, wherein an upper pressure frame and a lower support frame which are both vertical to the central line of the rectangular cylinder body are welded in the rectangular cylinder body, at least one silk screen component is filled between the upper pressure frame and the lower support frame, and the silk screen component is fixedly connected with the upper pressure frame and the lower support frame through fasteners; the screen assembly comprises a screen block, an upper grid plate and a lower grid plate, wherein the upper grid plate and the lower grid plate are positioned on the upper surface and the lower surface of the screen block, and a plurality of fixing rods with two ends respectively welded with the upper grid plate and the lower grid plate penetrate through the screen block. The utility model discloses under the condition that does not influence the effective flow area of silk screen demister, guaranteed the stability of silk screen demister structure, and simple structure, simple to operate, safe and reliable, the cost of manufacture is low.

Description

Rectangular wire mesh demister

Technical Field

The utility model relates to a silk screen demister among the chemical industry equipment specifically is a rectangle silk screen demister.

Background

Inside chemical pressure vessels, wire mesh defoamers are often used. A conventional round wire mesh demister can be selected according to the HG/T21618-1998 standard. The steam drum of the existing synthesis reactor has large volume, a rectangular large-scale wire mesh demister needs to be arranged in the steam drum of the synthesis reactor according to the structure of the steam drum of the synthesis reactor, and the existing circular wire mesh demister cannot be matched with the synthesis reactor, so that the design of the large-scale wire mesh demister with convenient installation, safety and reliability is very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem of the background art and provides a rectangular wire mesh demister.

The utility model provides a technical means that its technical problem adopted is: a rectangular silk screen demister comprises a rectangular cylinder body, wherein an upper pressing frame and a lower supporting frame which are perpendicular to the central line of the rectangular cylinder body are welded inside the rectangular cylinder body, at least one silk screen assembly is filled between the upper pressing frame and the lower supporting frame, and the silk screen assembly is fixedly connected with the upper pressing frame and the lower supporting frame through fasteners; the screen assembly comprises a screen block, an upper grid plate and a lower grid plate, wherein the upper grid plate and the lower grid plate are positioned on the upper surface and the lower surface of the screen block, and a plurality of fixing rods with two ends respectively welded with the upper grid plate and the lower grid plate penetrate through the screen block. During the use, with the welding of rectangle barrel and equipment inner wall mutually, it is used for pressing from both sides tight silk screen subassembly to go up to press frame and under bracing frame to be located the inside tight silk screen subassembly that is used for of rectangle barrel, the silk screen subassembly cuts off the rectangle barrel to rectangular silk screen demister has been formed, can with synthetic reactor steam pocket volume and structure adaptation, play better defoaming effect, and can guarantee the effective flow area of silk screen demister, the intensity and the stability of overall structure have been guaranteed through last frame and under bracing frame and the welding of rectangle barrel mutually, high durability and convenient installation, safety and reliability.

Preferably, the upper pressing frame comprises a first rectangular frame welded with four faces of the inner wall of the rectangular cylinder, the first rectangular frame is fixedly connected with a plurality of first pressing beams crossing between two long edges of the first rectangular frame, and the first rectangular frame is further welded with second pressing beams crossing between two short edges of the first rectangular frame and connected with the first pressing beams. Therefore, firm connection of the silk screen components can be ensured, and the effective flow area of the silk screen demister can be ensured.

Preferably, the lower support frame comprises a second rectangular frame welded with four faces of the inner wall of the rectangular cylinder body, a plurality of first support beams spanning between two long edges of the second rectangular frame are fixedly connected to the second rectangular frame, and a second support beam spanning between two short edges of the second rectangular frame and connected with the first support beams in a homogeneous mode is further welded to the second rectangular frame. The stable supporting effect of silk screen subassembly can be given to the under bracing frame, sets up the effective flow area that can not only guarantee the silk screen demister like this, can also guarantee overall structure's stability.

Preferably, a plurality of reinforcing rib plates which are uniformly distributed are welded on the outer wall of the rectangular cylinder body, the reinforcing rib plates are vertically arranged, and the plane where the reinforcing rib plates are located is perpendicular to the plane where the outer wall of the rectangular cylinder body is located. The reinforcing rib plate is used for preventing the internal stress deformation of the rectangular cylinder, the stability of the whole structure is further ensured, and after the reinforcing rib plate is arranged, the rectangular wire mesh demister is welded with the inner wall of the equipment through the reinforcing rib plate.

The utility model has the advantages that: under the condition that the effective flow area of the wire mesh demister is not influenced, the stability of the structure of the wire mesh demister is ensured, and the wire mesh demister is simple in structure, convenient to install, safe, reliable and low in manufacturing cost.

Drawings

Fig. 1 is a schematic view of the front overall structure of a rectangular wire mesh demister of the present invention.

Fig. 2 is an enlarged schematic structural view of a portion I in fig. 1.

Fig. 3 is a schematic structural diagram of the screen assembly according to the present invention.

Fig. 4 is a schematic structural view of the upper pressing frame of the present invention.

Fig. 5 is a schematic structural view of the lower support frame of the present invention.

Fig. 6 is a schematic side view of the rectangular wire mesh demister of the present invention.

In the figure: 1-a rectangular cylinder; 2, putting a pressing frame; 3-lower support frame; 4-a wire mesh assembly; 5-wire mesh block; 6-upper grid plate; 7-lower grid plate; 8-fixing the rod; 9-a first rectangular border; 10-a first compression beam; 11-bolt-nut assembly; 12-a second rectangular border; 13-a first support beam; 14-a second support beam; 15-reinforcing rib plates; 16-a second compression beam; 17-connecting plate.

Detailed Description

Referring to fig. 1-6, a rectangular wire mesh demister according to the present invention will be described in detail.

Example 1: the steam drum of the synthesis reactor has larger volume, and a rectangular wire mesh demister with the length of 8000mm and the width of 1000mm needs to be arranged inside the steam drum. Therefore, the rectangular screen demister of the utility model is shown in fig. 1, and comprises a rectangular cylinder 1, wherein an upper pressing frame 2 and a lower supporting frame 3 which are both perpendicular to the central line of the rectangular cylinder 1 are welded inside the rectangular cylinder 1, at least one screen assembly 4 is filled between the upper pressing frame 2 and the lower supporting frame 3, and the screen assembly 4 is fixedly connected with the upper pressing frame 2 and the lower supporting frame 3 through fasteners; as shown in fig. 2 and 3, the wire mesh assembly 4 includes a wire mesh block 5, and an upper grid plate 6 and a lower grid plate 7 located on the upper and lower surfaces of the wire mesh block 5, and a plurality of fixing rods 8 with two ends respectively welded to the upper grid plate 6 and the lower grid plate 7 are inserted into the wire mesh block 5. During the use, weld rectangle barrel 1 and equipment inner wall mutually, it is used for pressing frame 2 and lower support 3 to be located 1 inside tight silk screen subassembly 4 that is used for pressing of rectangle barrel, silk screen subassembly 4 cuts off rectangle barrel 1, thereby rectangular silk screen demister has been formed, can with synthetic reactor steam pocket volume and structure adaptation, play better defoaming effect, and can guarantee the effective flow area of silk screen demister, the intensity and the stability of overall structure have been guaranteed through last pressure frame 2 and lower support 3 and the welding of rectangle barrel 1 mutually, and the installation is convenient, safety and reliability. The silk screen component 4 can be a large whole block, which separates the rectangular cylinder 1, and the silk screen component 4 can also be formed by splicing a plurality of small blocks.

Further, as a specific implementation of rectangle silk screen demister, as shown in fig. 4 and fig. 6, go up and press frame 2 and include with 1 inner wall four faces homogeneous phase welded first rectangle frame 9 of rectangle barrel, linked firmly several first pressure roof beams 10 that span between two long edges of first rectangle frame 9 on first rectangle frame 9, still weld on first rectangle frame 9 and span between two short edges of first rectangle frame 9 and with the second pressure roof beam 16 that first pressure roof beam 10 homogeneous phase is connected. Therefore, the wire mesh components 4 can be firmly connected, and the effective flow area of the wire mesh demister can be ensured.

Further, as a specific embodiment of the rectangular wire mesh demister of the present invention, as shown in fig. 4 and 6, the first rectangular frame 9, the first pressing beam 10 and the second pressing beam 16 are made of angle steel, and the first rectangular frame 9 is connected to the first pressing beam 10 and the second pressing beam 16 through the bolt and nut assembly 11; first pressure roof beam 10 and second pressure roof beam 16 are connected through bolt and nut subassembly 11 between, and first rectangle frame 9, first pressure roof beam 10 and second pressure roof beam 16 are located the coplanar, utilize the angle steel can satisfy the intensity requirement, and the angle steel cost is lower moreover, and second pressure roof beam 16 is formed by the combination of multistage angle steel. And particularly, a connecting plate 17 used for being connected with the first pressing beam 10 and the second pressing beam 16 is welded on the first rectangular frame 9.

Further, as a specific implementation of rectangle silk screen demister, as shown in fig. 5 and fig. 6, lower support frame 3 includes with 1 inner wall of rectangle barrel four faces homogeneous phase welded second rectangle frame 12, has linked firmly several first supporting beam 13 between two long edges that span second rectangle frame 12 on the second rectangle frame 12, still welds the second supporting beam 14 that has spanned between two short edges of second rectangle frame 12 and is connected with first supporting beam 13 homogeneous phase on the second rectangle frame 12. The stable supporting effect of silk screen subassembly 4 can be given to bottom suspension mast 3, sets up the effective flow area that can not only guarantee the silk screen demister like this, can also guarantee overall structure's stability.

Further, as a specific implementation of a rectangular wire mesh demister, as shown in fig. 5 and fig. 6, the second rectangular frame 12, the first supporting beam 13 and the second supporting beam 14 are made of angle steel, the second rectangular frame 12 is connected with the first supporting beam 13 and the second supporting beam 14 through the bolt and nut assembly 11, the first supporting beam 13 is connected with the second supporting beam 14 through the bolt and nut assembly 11, the second rectangular frame 12, the first supporting beam 13 and the second supporting beam 14 are located in the same plane, and the second supporting beam 14 is formed by combining a plurality of sections of angle steel. The second rectangular frame 12 is welded with a connecting plate 17 for connecting the first supporting beam 13 and the second supporting beam 14.

Further, as a specific implementation of rectangle silk screen demister, as shown in fig. 1, fig. 6, welded on the outer wall of the rectangle barrel 1 has a plurality of reinforcing ribs 15 that are evenly distributed, and reinforcing ribs 15 are vertically arranged and reinforcing ribs 15 are perpendicular to the plane of the outer wall of the rectangle barrel 1. The reinforcing rib plate 15 is used for preventing the internal stress deformation of the rectangular cylinder body 1, the stability of the whole structure is further ensured, and after the reinforcing rib plate 15 is arranged, the rectangular wire mesh demister is welded with the inner wall of the equipment through the reinforcing rib plate 15.

Further, as a specific implementation of the rectangular wire mesh demister of the present invention, the adjacent wire mesh components 4 are fixedly connected by fasteners. Because the rectangle silk screen demister of the utility model is bigger, so may include the silk screen subassembly 4 that a plurality of structures are less, pass through fastener fixed connection so between the adjacent silk screen subassembly 4, this is in order to guarantee overall structure's stability.

Further, as a specific implementation of the rectangular wire mesh demister of the present invention, the fastening member is an iron wire or a clamp.

While the invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The rectangular wire mesh demister is characterized by comprising a rectangular cylinder body (1), wherein an upper pressing frame (2) and a lower supporting frame (3) which are perpendicular to the central line of the rectangular cylinder body (1) are welded inside the rectangular cylinder body (1), at least one wire mesh component (4) is filled between the upper pressing frame (2) and the lower supporting frame (3), and the wire mesh component (4) is fixedly connected with the upper pressing frame (2) and the lower supporting frame (3) through fasteners; the wire mesh component (4) comprises a wire mesh block (5), an upper grid plate (6) and a lower grid plate (7) which are positioned on the upper surface and the lower surface of the wire mesh block (5), and a plurality of fixing rods (8) with two ends respectively welded with the upper grid plate (6) and the lower grid plate (7) penetrate through the wire mesh block (5).

2. The rectangular wire mesh demister according to claim 1, wherein the upper pressure frame (2) comprises a first rectangular frame (9) welded to four sides of the inner wall of the rectangular cylinder (1), the first rectangular frame (9) is fixedly connected with a plurality of first pressure beams (10) spanning between two long sides of the first rectangular frame (9), and the first rectangular frame (9) is further welded with a second pressure beam (16) spanning between two short sides of the first rectangular frame (9) and connected with the first pressure beam (10).

3. The rectangular wire mesh demister according to claim 2, wherein the first rectangular frame (9), the first pressure beam (10) and the second pressure beam (16) are made of angle steel, and the first rectangular frame (9) is connected with the first pressure beam (10) and the second pressure beam (16) through a bolt-nut assembly (11); the first pressure beam (10) and the second pressure beam (16) are connected through a bolt and nut assembly (11), and the first rectangular frame (9), the first pressure beam (10) and the second pressure beam (16) are located in the same plane.

4. The rectangular wire mesh demister according to claim 1, wherein the lower support frame (3) comprises a second rectangular frame (12) welded to four sides of the inner wall of the rectangular cylinder (1), the second rectangular frame (12) is fixedly connected with a plurality of first support beams (13) crossing between two long sides of the second rectangular frame (12), and the second rectangular frame (12) is further welded with second support beams (14) crossing between two short sides of the second rectangular frame (12) and connected with the first support beams (13).

5. The rectangular wire mesh demister according to claim 4, wherein the second rectangular frame (12), the first support beam (13) and the second support beam (14) are made of angle steel, the second rectangular frame (12), the first support beam (13) and the second support beam (14) are connected through bolt and nut assemblies (11), and the second rectangular frame (12), the first support beam (13) and the second support beam (14) are located in the same plane.

6. The rectangular wire mesh demister according to claim 1, wherein a plurality of reinforcing ribs (15) are welded on the outer wall of the rectangular cylinder (1) and are uniformly distributed, the reinforcing ribs (15) are vertically arranged, and the plane of the reinforcing ribs (15) is perpendicular to the plane of the outer wall of the rectangular cylinder (1).

7. The rectangular wire mesh demister according to any one of claims 1-6, wherein adjacent wire mesh modules (4) are fixedly connected by fasteners.

8. The rectangular wire mesh demister of claim 7, wherein the fastener is a wire or a band.