Normal pressure device cylinder top angle steel ring structure

Abstract

The utility model relates to angle steel ring technical field discloses a normal pressure equipment cylinder top angle steel ring structure, including ring plate, the bottom of annular ring plate is provided with short section, the inner edge or the outer edge of ring plate is welded with one end of short section and connects, forms a L shape cross section annular structure, the top of ring plate is provided with annular groove, the inner wall of annular groove is fixedly connected with reinforcing ring, the utility model has the advantages and effects that: anti-deformation retainer increases ring plate strength, and ring plate is cut directly from flat plate, fundamentally avoids the wave-like wrinkle and the twisted deformation of the curly hair of section bar stretch bending, and the short section is mature in rolling process, and the roundness is easy to control, and the deformation error is extremely small, thereby guaranteeing the size precision, the roundness and the flatness of final product, and the efficiency of flat plate blanking and section rolling is high, and the scrap rate is extremely low, thereby effectively reducing the overall manufacturing cost, and the anti-deformation retainer and the anti-deformation shell are protected as a whole, and the service life is improved.

Description

Technical Field

[0001] This utility model relates to the field of angle steel ring technology, and in particular to an angle steel ring structure for the top of the cylinder of an atmospheric pressure equipment. Background Technology

[0002] Angle steel ring structure is commonly used in pressure vessel products. Angle steel cylinders are rolled into circles according to their diameter. When atmospheric pressure vertical equipment adopts a conical or arched top structure, an angle steel ring needs to be installed at the top of the cylinder. The angle steel ring is manufactured by bending angle steel.

[0003] In the prior art, Chinese Patent Publication No. CN205571079U discloses a tooling for forming angle steel rings, belonging to the pressure vessel manufacturing field of the machinery industry, which overcomes the problem of deformation of angle steel rings during the rolling process in the prior art. The tooling is made of forgings machined into a circular shape, with an inner diameter larger than the diameter of the roller of a three-roll plate rolling machine; the outer circular cross-section of the angle steel ring is a groove, the width of which is greater than twice the thickness of the angle steel ring, and the depth is greater than the height of the angle steel ring. During the rolling process, the tooling is first assembled onto the roller of the plate rolling machine 1, then the angle steel rings 3 are spot-welded back-to-back and then inserted as a whole into the angle steel ring forming tooling 2. The plate rolling machine is started for rolling. After rolling, the spot-welded angle steel rings 3 are separated, and then the joints of the angle steel rings are welded. This utility model realizes rapid rolling of angle steel rings, improving the forming efficiency of angle steel rings. It effectively avoids deformation of the angle steel rings during the rolling process, and can well guarantee their ellipticity and flatness.

[0004] However, in actual use, when the bending process applies tension to the profile, the asymmetrical cross-section will produce uneven stress distribution (one side is under more intense tension, while the other side may be under compressive stress), which is very easy to cause instability, resulting in wavy wrinkles or torsional deformation (twisted shape). This deformation makes the angle steel ring have poor roundness and low flatness. When it is connected to the cylinder and the top cover, a lot of manual correction, hammering and welding are required, which is time-consuming and labor-intensive, and the quality is difficult to guarantee. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a top angle steel ring structure for the cylinder of an atmospheric pressure equipment, which avoids the wavy wrinkles and twisted deformation that occur when the profile is bent.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a top angle steel ring structure for a cylinder of an atmospheric pressure device, comprising an annular plate, a short cylindrical section provided at the bottom of the annular plate, the inner edge or outer edge of the annular plate being welded to one end of the short cylindrical section to form an L-shaped cross-section annular structure, an annular groove being provided at the top of the annular plate, a reinforcing ring being fixedly connected to the inner wall of the annular groove, an anti-deformation protective ring being fixedly connected to the bottom of the annular plate, a fastening groove being provided on the outer surface of the short cylindrical section, a fastening ring being fixedly connected to the inner wall of the fastening groove, a second fastening groove being provided at the bottom of the fastening groove, and an anti-deformation protective shell being fixedly connected to the outer surface of the short cylindrical section.

[0007] By adopting the above technical solution, using CNC plasma cutting or laser cutting equipment, a ring plate is obtained from a flat steel plate. This process ensures that the ring plate has extremely high dimensional accuracy and flatness, without any warping or deformation. A rectangular plate is cut from the steel plate to make a short section. The short section is placed vertically on the ring plate, and the lower outer wall of the short section is aligned and welded with the outer edge of the ring plate. The reinforcing ring is welded to the inner wall of the annular groove, and the fastening ring is also fixed. The anti-deformation protective ring increases the strength of the ring plate. The ring plate is directly cut from a flat plate, which fundamentally avoids the wavy wrinkles and twisted deformation caused by bending the profile. The rolling process of the short section is mature, the roundness is easy to control, and the deformation error is extremely small, thus ensuring the dimensional accuracy, roundness, and flatness of the final product. The efficiency of flat plate cutting and section rolling is high, and the scrap rate is extremely low, thereby effectively reducing the overall manufacturing cost. The whole is protected by the anti-deformation protective ring and anti-deformation shell, reducing the probability of deformation and increasing the service life.

[0008] A further feature of this invention is that the short cylindrical section has an internal aperture, and the inner wall of the aperture is fixedly connected with reinforcing ribs.

[0009] By adopting the above technical solution, the reinforcing ribs increase the internal strength of the short cylindrical section and have a higher compressive strength coefficient.

[0010] A further feature of this invention is that an alloy layer is fixedly connected inside the anti-deformation protective ring, and a reinforcing steel layer is fixedly connected to the outer surface of the alloy layer.

[0011] By adopting the above technical solution, the interior of the anti-deformation protective ring is composed of an alloy layer and a reinforcing steel layer.

[0012] A further feature of this invention is that the outer edge of the ring plate is welded to the top end of the short cylindrical section, such that the short cylindrical section is positioned below the ring plate.

[0013] By adopting the above technical solution, the welding of the ring plate and the short cylinder section is relatively simple.

[0014] A further feature of this invention is that the inner edge of the ring plate is welded to the top end of the short cylindrical section, such that the short cylindrical section is positioned below the ring plate.

[0015] By adopting the above technical solution, the short cylindrical rectangular plate can be rolled on a three-roll or four-roll plate rolling machine and bent into the required cylindrical shape.

[0016] A further feature of this invention is that the width of the ring plate is greater than the height of the short cylindrical section.

[0017] By adopting the above technical solution, the longitudinal seam of the rolled cylinder is welded together and the weld is ground to form a complete short cylinder section with extremely high roundness.

[0018] A further feature of this invention is that the ring plate is made by cutting a flat plate.

[0019] By adopting the above technical solution, the ring plate is seamlessly set, resulting in higher precision.

[0020] A further feature of this invention is that the short cylindrical section is formed by rolling steel plates and then welding longitudinal welds.

[0021] By adopting the above technical solution, the weld is longitudinal and is polished smooth after welding.

[0022] A further feature of this invention is that the number of fastening rings is two, and the two fastening rings have the same diameter.

[0023] By adopting the above technical solution, a suitable distance is maintained between the two fastening rings.

[0024] A further feature of this invention is that the two fastening rings are distributed vertically, and the two fastening rings are made of an alloy.

[0025] By adopting the above technical solution, the alloy material of the fastening ring is not easily deformed, thus reinforcing the short cylindrical section.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the coordinated arrangement of the ring plate, short cylindrical section, annular groove, reinforcing ring, anti-deformation protective ring, fastening groove, fastening ring, second fastening groove, and anti-deformation protective shell, enables the device to obtain a ring plate from a flat steel plate during use. This process ensures that the ring plate has extremely high dimensional accuracy and flatness, without any warping or deformation. A rectangular plate is cut from the steel plate to make the short cylindrical section. The short cylindrical section is placed vertically on the ring plate, and the lower outer wall of the short cylindrical section is aligned and welded with the outer edge of the ring plate. The reinforcing ring is welded to the annular groove. The inner wall of the groove is also fixed by the fastening ring, and the anti-deformation protective ring increases the strength of the ring plate. The ring plate is directly cut from the flat plate, which fundamentally avoids the wavy wrinkles and twisted deformation caused by the bending of the profile. The rolling process of the short section is mature, the roundness is easy to control, and the deformation error is extremely small, thus ensuring the dimensional accuracy, roundness and flatness of the final product. The efficiency of flat plate cutting and section rolling is high and the scrap rate is extremely low, thus effectively reducing the overall manufacturing cost. The whole is protected by the anti-deformation protective ring and anti-deformation protective shell, reducing the probability of deformation and increasing the service life.

[0028] 2. This utility model, through the coordinated arrangement of aperture, reinforcing ribs, alloy layer, and reinforcing steel layer, enables the device to increase the internal strength of the short cylindrical section during use. The reinforcing ribs increase the compressive strength coefficient, and the anti-deformation protective ring is composed of an alloy layer and a reinforcing steel layer. Welding the ring plate and the short cylindrical section is relatively simple. The rectangular plate of the short cylindrical section is rolled on a three-roll or four-roll plate rolling machine, which can be bent into the required cylindrical shape. The rolled cylinder is welded to the longitudinal seam and the weld is ground to form a complete short cylindrical section with extremely high roundness. The ring plate is seamless, which increases the precision. The weld is longitudinal and is ground smooth after welding. An appropriate distance is left between the two fastening rings. The alloy material of the fastening rings is not easily deformed, thus reinforcing the short cylindrical section. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the ring plate structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the reinforcing rib structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the anti-deformation protective ring structure of this utility model.

[0034] In the figure, 1. Ring plate; 2. Short cylindrical section; 3. Annular groove; 4. Reinforcing ring; 5. Anti-deformation protective ring; 6. Fastening groove; 7. Fastening ring; 8. Second fastening groove; 9. Anti-deformation protective shell; 10. Aperture; 11. Reinforcing rib; 12. Alloy layer; 13. Reinforcing steel layer. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] An angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment includes the following embodiments:

[0037] Example 1:

[0038] Reference Figure 1-4 The device includes a ring plate 1, a short cylindrical section 2 at the bottom of the ring plate 1, the inner or outer edge of the ring plate 1 being welded to one end of the short cylindrical section 2 to form an L-shaped cross-section ring structure, an annular groove 3 at the top of the ring plate 1, a reinforcing ring 4 fixedly connected to the inner wall of the annular groove 3, an anti-deformation protective ring 5 fixedly connected to the bottom of the ring plate 1, a fastening groove 6 on the outer surface of the short cylindrical section 2, a fastening ring 7 fixedly connected to the inner wall of the fastening groove 6, a second fastening groove 8 at the bottom of the fastening groove 6, and an anti-deformation protective shell 9 fixedly connected to the outer surface of the short cylindrical section 2.

[0039] Specifically, a ring plate 1 is obtained by cutting a flat steel plate using CNC plasma cutting or laser cutting equipment. This process ensures that the ring plate 1 has extremely high dimensional accuracy and flatness, without any warping or deformation. A rectangular plate is cut from the steel plate to make a short cylindrical section 2. The short cylindrical section 2 is placed vertically on the ring plate 1, and the lower outer wall of the short cylindrical section 2 is aligned and welded with the outer edge of the ring plate 1. The reinforcing ring 4 is welded to the inner wall of the annular groove 3, and the fastening ring 7 is also fixed. The anti-deformation protective ring 5 increases the strength of the ring plate 1. The ring plate 1 is directly cut from a flat plate, which fundamentally avoids the wavy wrinkles and twisted deformation caused by bending the profile. The rolling process of the short cylindrical section 2 is mature, the roundness is easy to control, and the deformation error is extremely small, thus ensuring the dimensional accuracy, roundness, and flatness of the final product. The efficiency of flat plate cutting and cylindrical section rolling is high, and the scrap rate is extremely low, thereby effectively reducing the overall manufacturing cost. The whole is protected by the anti-deformation protective ring 5 and the anti-deformation protective shell 9, reducing the probability of deformation and increasing the service life.

[0040] Example 2:

[0041] Reference Figure 1-4The short cylindrical section 2 has an internal aperture 10, and a reinforcing rib 11 is fixedly connected to the inner wall of the aperture 10. An alloy layer 12 is fixedly connected to the inside of the anti-deformation protective ring 5, and a reinforcing rib 13 is fixedly connected to the outer surface of the alloy layer 12. The outer edge of the ring plate 1 is welded to the top of the short cylindrical section 2, so that the short cylindrical section 2 is placed below the ring plate 1. The inner edge of the ring plate 1 is welded to the top of the short cylindrical section 2, so that the short cylindrical section 2 is placed below the ring plate 1. The width of the ring plate 1 is greater than the height of the short cylindrical section 2. The ring plate 1 is made by cutting a flat plate. The short cylindrical section 2 is made by rolling a steel plate and welding a longitudinal weld. There are two fastening rings 7. The two fastening rings 7 have the same diameter and are distributed vertically. The material of the two fastening rings 7 is an alloy.

[0042] Specifically, the reinforcing rib 11 increases the internal strength of the short cylindrical section 2, resulting in a higher compressive strength coefficient. The anti-deformation protective ring 5 is composed of an alloy layer 12 and a reinforcing steel layer 13. Welding the ring plate 1 and the short cylindrical section 2 is relatively simple. The rectangular plate of the short cylindrical section 2 is rolled on a three-roll or four-roll plate rolling machine, which can be bent into the required cylindrical shape. The rolled cylinder is welded to the longitudinal seam and the weld is ground to form a complete short cylindrical section 2 with extremely high roundness. The ring plate 1 is seamless, resulting in higher precision. The weld is longitudinal and is ground smooth after welding. A suitable distance is left between the two fastening rings 7. The alloy material of the fastening rings 7 is not easily deformed, thus reinforcing the short cylindrical section 2.

[0043] In this invention, a ring plate 1 is obtained by cutting and unloading from a flat steel plate. This process ensures that the ring plate 1 has extremely high dimensional accuracy and flatness, without any warping or deformation. A rectangular plate is cut from the steel plate to make a short cylindrical section 2. The short cylindrical section 2 is placed vertically on the ring plate 1, and the lower outer wall of the short cylindrical section 2 is aligned and welded with the outer edge of the ring plate 1. A reinforcing ring 4 is welded to the inner wall of the annular groove 3, and a fastening ring 7 is also fixed. An anti-deformation protective ring 5 increases the strength of the ring plate 1. The ring plate 1 is directly cut from a flat plate, which fundamentally avoids the wavy wrinkles and twisted deformation caused by bending the profile. The rolling process of the short cylindrical section 2 is mature, the roundness is easy to control, and the deformation error is minimal, thus ensuring the dimensional accuracy, roundness, and flatness of the final product. The efficiency of flat plate cutting and cylindrical section rolling is high, and waste is minimized. The yield rate is extremely low, thus effectively reducing the overall manufacturing cost. The entire structure is protected by the anti-deformation protective ring 5 and the anti-deformation protective shell 9, reducing the probability of deformation and increasing the service life. The reinforcing rib 11 increases the internal strength of the short section 2 and has a high compressive strength coefficient. The anti-deformation protective ring 5 is composed of an alloy layer 12 and a reinforcing steel layer 13. The welding of the ring plate 1 and the short section 2 is relatively simple. The rectangular plate of the short section 2 is rolled on a three-roll or four-roll plate rolling machine, which can be bent into the required cylindrical shape. The rolled cylinder is welded to the longitudinal seam and the weld is ground to form a complete short section 2 with extremely high roundness. The ring plate 1 is seamless, with higher precision. The weld is longitudinal and is ground smooth after welding. A suitable distance is left between the two fastening rings 7. The alloy material of the fastening rings 7 is not easily deformed, thus reinforcing the short section 2.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A top angle steel ring structure for an atmospheric pressure equipment cylinder, comprising a ring plate (1), characterized in that: The bottom of the annular plate (1) is provided with a short cylindrical section (2). The inner edge or outer edge of the annular plate (1) is welded to one end of the short cylindrical section (2) to form an L-shaped cross-section annular structure. The top of the annular plate (1) is provided with an annular groove (3). A reinforcing ring (4) is fixedly connected to the inner wall of the annular groove (3). An anti-deformation protective ring (5) is fixedly connected to the bottom of the annular plate (1). A fastening groove (6) is provided on the outer surface of the short cylindrical section (2). A fastening ring (7) is fixedly connected to the inner wall of the fastening groove (6). A second fastening groove (8) is provided at the bottom of the fastening groove (6). An anti-deformation protective shell (9) is fixedly connected to the outer surface of the short cylindrical section (2).

2. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The short cylindrical section (2) has an internal aperture (10), and the inner wall of the aperture (10) is fixedly connected with a reinforcing rib (11).

3. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The anti-deformation protective ring (5) has an alloy layer (12) fixedly connected inside, and a reinforcing steel layer (13) is fixedly connected to the outer surface of the alloy layer (12).

4. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The outer edge of the ring plate (1) is welded to the top of the short cylindrical section (2), so that the short cylindrical section (2) is placed below the ring plate (1).

5. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The inner edge of the ring plate (1) is welded to the top end of the short cylindrical section (2), so that the short cylindrical section (2) is placed below the ring plate (1).

6. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The width of the ring plate (1) is greater than the height of the short cylindrical section (2).

7. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The ring plate (1) is made by cutting a flat plate.

8. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The short cylindrical section (2) is made by rolling steel plates and then welding longitudinal welds.

9. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The number of fastening rings (7) is two, and the two fastening rings (7) have the same diameter.

10. The angle steel ring structure at the top of the cylinder of an atmospheric pressure equipment according to claim 1, characterized in that: The two fastening rings (7) are distributed vertically, and the material of the two fastening rings (7) is an alloy.

Images