Weld joint anti-corrosion reinforced barrel body for gas drainer

Abstract

The utility model discloses a weld joint anti-corrosion reinforced barrel body for a gas drainer. The barrel body comprises a bottom plate, a partition plate, a barrel wall, a top plate and a sewage disposal short pipe, the anti-corrosion barrel is characterized in that a circular weld joint anti-corrosion device is fixedly arranged on the inner wall of the barrel wall and the inner wall of a weld joint of the short decontamination pipe; strip-shaped welding seam corrosion prevention devices are fixedly arranged on the inner walls of the welding seams at the joints of the adjacent partition plates, the inner walls of the welding seams at the joints of the lower ends of the partition plates and the bottom plate and the inner walls of the welding seams at the joints of the partition plates and the barrel wall in a cavity where the coal gas condensate flows through, and arc-shaped welding seam corrosion prevention devices are fixedly arranged on the inner walls of the welding seams at the joints of the bottom end of the barrel wall and the bottom plate; inner wall anti-corrosion layers are coated on the plate surfaces of the partition plate, the bottom plate and the barrel wall, and welding seam anti-corrosion layers are coated on the surfaces of the circular welding seam anti-corrosion device, the arc-shaped welding seam anti-corrosion device and the strip-shaped welding seam anti-corrosion device. The anti-corrosion barrel is suitable for the coal gas drainer, anti-corrosion strengthening treatment is carried out on all connection welding seams making contact with coal gas condensate water, and the overall anti-corrosion capacity of the barrel body is improved.

Description

Technical Field

[0001] The utility model relates to an improvement on a leakage-proof gas drainer, in particular to a weld-line corrosion-resistant reinforced barrel body for a gas drainer. Background Art

[0002] At present, the anti-leakage gas drainers used by enterprises are generally multi-chamber vertical gas drainers, whose structure includes a barrel body with partitioned chambers, a condensate overflow pipe, a cleaning hole and a condensate inlet pipe; taking the barrel body with four condensate chambers as an example, such as: the utility model "Gas drainer with an anti-leakage device in the drainage final chamber" submitted by Jinan Laiwu Xinchuang Machinery Equipment Co., Ltd. on September 8, 2020, patent number CN202021941159.0; the barrel body used for this type of gas drainer is currently composed of a bottom plate, a partition, a barrel wall and a top plate, and the inner cavity of the barrel body is divided into drainage chamber 1, drainage chamber 2, heating chamber, drainage chamber 3 and drainage chamber by multiple partitions. The last chamber and the heating chamber are located between the second drainage chamber and the third drainage chamber; during production, the bottom ends of multiple partitions are first welded and fixed to the bottom plate, the joints between adjacent partitions are welded and fixed together, the cleaning pipes are welded and fixed to the bottom of the barrel walls corresponding to the first drainage chamber, the second drainage chamber, the third drainage chamber and the last drainage chamber, the bottom ends of the barrel walls corresponding to the first drainage chamber, the second drainage chamber, the heating chamber, the third drainage chamber and the last drainage chamber are welded and fixed to the bottom plate, the two side ends of the barrel walls corresponding to the first drainage chamber, the second drainage chamber, the heating chamber, the third drainage chamber and the last drainage chamber are respectively welded and fixed to the outer ends of the corresponding partitions, and finally the corresponding top plates are welded and fixed to the bottoms of the first drainage chamber, the second drainage chamber, the third drainage chamber and the last drainage chamber.

[0003] The disadvantage of the barrel body used in this gas drainer is that due to the strong acidity and high chloride ion content of gas condensate, the barrel wall and partitions made of ordinary carbon steel without anti-corrosion layer that are in contact with the gas condensate will be corroded quickly, especially the connecting welds between the barrel wall and the partition and between adjacent partitions will be corroded faster, which shortens the service life of the gas drainer barrel body. Summary of the invention

[0004] The purpose of the utility model is to provide a weld anti-corrosion reinforced barrel body for a gas drainer suitable for use in a gas drainer, in which a connecting weld in contact with gas condensate water is subjected to anti-corrosion reinforcement treatment in a chamber in contact with gas condensate water, thereby improving the overall anti-corrosion ability of the barrel body and extending its service life.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The welded anti-corrosion reinforced barrel body of the gas drainer comprises a bottom plate, a partition, a barrel wall, a top plate and a short sewage cleaning pipe. A partition is welded and fixed on the upper plate surface of the bottom plate, a barrel wall is welded and fixed between the outer ends of two adjacent partitions, the lower end of the barrel wall is welded and fixed to the bottom plate, and a top plate is welded and fixed to the upper ends of the barrel wall and the partition. The cavity between the bottom plate and the top plate is divided into a drainage chamber 1, a drainage chamber 2, a heating chamber, a drainage chamber 3 and a drainage chamber 4 by the partition. The heating chamber is located between the drainage chamber 2 and the drainage chamber 3. A short sewage cleaning pipe is welded and fixed at the through hole at the bottom of the barrel wall 3 corresponding to the drainage chamber 1, the drainage chamber 2, the drainage chamber 3 and the drainage chamber 4; the characteristic is that: the inner wall of the barrel wall and the short sewage cleaning pipe A circular weld anti-corrosion device is fixedly arranged on the inner wall of the weld; the circular weld anti-corrosion device is composed of a nickel-based stainless steel mesh ring and a nickel-based stainless steel pressure ring, the nickel-based stainless steel pressure ring is fixed on the inner wall of the weld between the barrel wall and the sewage cleaning short pipe by spot welding, the nickel-based stainless steel mesh ring is flatly arranged between the corresponding welds of the nickel-based stainless steel pressure ring and the sewage cleaning short pipe, and the weld between the inner wall of the barrel wall and the sewage cleaning short pipe is covered by the nickel-based stainless steel mesh ring; in drainage chamber 1, drainage chamber 2, drainage chamber 3 and drainage chamber 4, strip weld anti-corrosion devices are fixedly arranged on the inner wall of the weld at the connection of the corresponding adjacent partitions, on the inner wall of the weld at the connection between the lower end of the partition and the bottom plate, and on the inner wall of the weld at the connection between the partition and the barrel wall. The strip weld anti-corrosion device is composed of a nickel-based stainless steel mesh strip and a nickel-based stainless steel straight pressure strip. The nickel-based stainless steel straight pressure strip is fixedly arranged on the inside of the weld corresponding to the partition by spot welding. The nickel-based stainless steel mesh strip is laid flat between the nickel-based stainless steel straight pressure strip and the weld corresponding to the partition. The nickel-based stainless steel mesh strip is bent along the central axis of the length direction to cover the weld corresponding to the partition through the nickel-based stainless steel mesh strip. In the drainage chamber 1, drainage chamber 2, drainage chamber 3 and drainage chamber 4, an arc weld anti-corrosion device is fixedly arranged on the inner wall of the weld at the connection between the bottom end of the barrel wall and the bottom plate. The arc weld anti-corrosion device is composed of a nickel-based stainless steel mesh arc strip and a nickel-based stainless steel arc pressure strip. The stainless steel arc strip is fixedly arranged at the outer edge of the bottom plate by spot welding, the nickel-based stainless steel mesh arc strip is flatly arranged between the nickel-based stainless steel arc strip and the corresponding weld of the bottom plate, the nickel-based stainless steel mesh arc strip is bent along the central axis in the length direction so as to cover the corresponding weld of the bottom plate by the nickel-based stainless steel mesh arc strip; the partitions, bottom plates and barrel walls in the drainage chamber 1, drainage chamber 2, drainage chamber 3 and drainage chamber 4 are coated with an inner wall anti-corrosion layer with a thickness of 0.7-1 mm, the surfaces of the circular weld anti-corrosion device, the arc weld anti-corrosion device and the strip weld anti-corrosion device are coated with a weld anti-corrosion layer, and the thickness of the weld anti-corrosion layer is 2-3 times the thickness of the inner wall anti-corrosion layer.

[0007] The beneficial effects of the utility model are that it is suitable for use in a gas drainer, and in a chamber in contact with gas condensate water, all connecting welds in contact with gas condensate water are subjected to enhanced anti-corrosion treatment, and the nickel-based stainless steel mesh can also prevent cracking of the weld anti-corrosion layer, thereby improving the overall anti-corrosion ability of the barrel body and extending the service life of the barrel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic top view of the structure of the utility model;

[0009] Figure 2 It is a schematic front view of the structure of the utility model;

[0010] Figure 3 For the utility model Figure 2 Schematic diagram of the structural cross-section in the A-A direction;

[0011] Figure 4 It is an enlarged schematic diagram of the structure of the strip weld anti-corrosion device of the utility model from top view;

[0012] Figure 5 For the utility model Figure 4 Schematic diagram of the structural cross-section along the B-B direction;

[0013] Figure 6 It is an enlarged schematic diagram of the structure of the arc weld anti-corrosion device of the utility model from top view;

[0014] Figure 7 For the utility model Figure 6 Schematic diagram of the structural cross-section along the C-C direction;

[0015] Figure 8 It is an enlarged schematic diagram of the structure of the circular weld anti-corrosion device of the utility model;

[0016] Fig. 9 For the utility model Figure 8 Schematic diagram of the structural cross-section along the D-D direction.

[0017] In the figure: 1. bottom plate; 2. partition; 3. barrel wall; 4. short sewage cleaning pipe; 5. drainage chamber 1; 6. drainage chamber 2; 7. heating chamber; 8. drainage chamber 3; 9. drainage chamber 4; 10. strip weld anti-corrosion device; 101. nickel-based stainless steel mesh strip; 102. nickel-based stainless steel straight pressure strip; 11. arc weld anti-corrosion device; 111. nickel-based stainless steel mesh arc strip; 112. nickel-based stainless steel arc pressure strip; 12. circular weld anti-corrosion device; 121. nickel-based stainless steel mesh ring; 122. nickel-based stainless steel pressure ring; 13. top plate. DETAILED DESCRIPTION

[0018] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 Make this utility model.

[0019] The welded anti-corrosion reinforced barrel body of the gas drainer comprises a bottom plate 1, a partition plate 2, a barrel wall 3, a top plate 13 and a short sewage cleaning pipe 4. The partition plate 2 is welded and fixed on the upper plate surface of the bottom plate 1, and the barrel wall 3 is welded and fixed between the outer ends of two adjacent partition plates 2. The lower end of the barrel wall 3 is welded and fixed to the bottom plate 1, and the upper ends of the barrel wall 3 and the partition plate 2 are welded and fixed with a top plate 13. The cavity between the bottom plate 1 and the top plate 13 is divided into a drainage chamber 1 5, a drainage chamber 2 6, a heating chamber 7, a drainage chamber 3 8 and a drainage chamber 4 9 by the partition plate 2. The heating chamber 7 is located between the drainage chamber 2 6 and the drainage chamber 3 8. The through holes at the bottom of the barrel wall 3 corresponding to the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9 are welded and fixed. The invention is characterized in that: a circular weld anti-corrosion device 12 is fixedly arranged on the inner wall of the weld between the inner wall of the barrel wall 3 and the short sewage cleaning pipe 4; the circular weld anti-corrosion device 12 is composed of a nickel-based stainless steel mesh ring 121 and a nickel-based stainless steel pressure ring 122; the nickel-based stainless steel pressure ring 122 is fixed on the inner wall of the weld between the barrel wall 3 and the short sewage cleaning pipe 4 by spot welding; the nickel-based stainless steel mesh ring 121 is flatly arranged between the corresponding welds of the nickel-based stainless steel pressure ring 122 and the short sewage cleaning pipe 4; the weld between the inner wall of the barrel wall 3 and the short sewage cleaning pipe 4 is covered by the nickel-based stainless steel mesh ring 121; in the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9, on the inner wall of the weld at the connection of the corresponding adjacent partitions 2, and at the connection between the lower end of the partition 2 and the bottom plate 1 A strip weld anti-corrosion device 10 is fixedly provided on the inner wall of the weld and the inner wall of the weld at the connection between the partition 2 and the barrel wall 3. The strip weld anti-corrosion device 10 is composed of a nickel-based stainless steel mesh strip 101 and a nickel-based stainless steel straight pressure strip 102. The nickel-based stainless steel straight pressure strip 102 is fixedly arranged on the inside of the weld corresponding to the partition 2 by spot welding. The nickel-based stainless steel mesh strip 101 is flatly arranged between the nickel-based stainless steel straight pressure strip 102 and the weld corresponding to the partition 2. The nickel-based stainless steel mesh strip 101 is bent along the central axis in the length direction to cover the weld corresponding to the partition 2 through the nickel-based stainless steel mesh strip 101; in the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9, the bottom end of the barrel wall 3 is connected to the bottom plate 1 An arc-shaped weld anti-corrosion device 11 is fixedly arranged on the inner wall of the weld, and the arc-shaped weld anti-corrosion device 11 is composed of a nickel-based stainless steel mesh arc strip 111 and a nickel-based stainless steel arc strip 112. The nickel-based stainless steel arc strip 112 is fixedly arranged at the outer edge of the bottom plate 1 by spot welding, and the nickel-based stainless steel mesh arc strip 111 is flatly arranged between the nickel-based stainless steel arc strip 112 and the weld corresponding to the bottom plate 1. The nickel-based stainless steel mesh arc strip 111 is bent along the central axis in the length direction so that the nickel-based stainless steel mesh arc strip 111 covers the weld corresponding to the bottom plate 1; the partition 2, the bottom plate 1 and the barrel wall 3 in the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9 are painted with a thickness of 0.7-1 mm inner wall anti-corrosion layer, the surface of the circular weld anti-corrosion device 12, arc weld anti-corrosion device 11 and strip weld anti-corrosion device 10 is coated with a weld anti-corrosion layer, and the thickness of the weld anti-corrosion layer is 2-3 times the thickness of the inner wall anti-corrosion layer; since the nickel-based stainless steel mesh ring 121, the nickel-based stainless steel mesh arc strip 111 and the nickel-based stainless steel mesh strip 101 are all made of nickel-based stainless steel mesh, when the weld anti-corrosion layer is applied, the anti-corrosion paint can be filled into the mesh of the nickel-based stainless steel mesh, so that the corresponding weld anti-corrosion layer on the circular weld anti-corrosion device 12, the arc weld anti-corrosion device 11 and the strip weld anti-corrosion device 10 adheres more firmly and will not fall off, thereby preventing the weld from being corroded to the greatest extent. .

[0020] When making the utility model, each partition 2 is first welded and fixed on the plate surface of the bottom plate 1, and then the connection between the adjacent partitions 2 is welded and fixed; in the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9, the inner wall of the weld at the connection between the corresponding adjacent partitions 2 and the inner wall of the weld at the connection between the lower end of the partition 2 and the bottom plate 1 are fixedly provided with a strip weld anti-corrosion device 10; the corresponding sewage cleaning short pipe 4 is welded to the barrel wall 3 corresponding to the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9, and then a circular weld anti-corrosion device 12 is fixed on the inner wall of the weld between the inner wall of the barrel wall 3 and the sewage cleaning short pipe 4; in the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9, the corresponding A strip weld anti-corrosion device 10 is fixed on the inner wall of the weld at the connection between the partition 2 and the barrel wall 3; the barrel walls 3 corresponding to the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9 are placed in their respective corresponding positions, and the connection between the barrel wall 3 and the partition 2, and the connection between the barrel wall 3 and the bottom plate 1 are welded from the outside; the inner wall anti-corrosion layer is applied to the plate surfaces of the barrel wall 3, the partition 2 and the bottom plate 1 corresponding to the drainage chamber 1 5, the drainage chamber 2 6, the drainage chamber 3 8 and the drainage chamber 4 9, and then the weld anti-corrosion layer is applied to the surfaces of the circular weld anti-corrosion device 12, the arc weld anti-corrosion device 11 and the strip weld anti-corrosion device 10; finally, the top plate 13 is welded to the upper end of the barrel wall 3 and the partition 2.

Claims

1. A welded anti-corrosion reinforced barrel for a gas drainer, comprising a bottom plate (1), a partition plate (2), a barrel wall (3), a top plate (13) and a short sewage cleaning pipe (4), wherein a partition plate (2) is welded and fixedly arranged on the upper plate surface of the bottom plate (1), a barrel wall (3) is welded and fixedly arranged between the outer ends of two adjacent partition plates (2), the lower end of the barrel wall (3) is welded and fixedly arranged to the bottom plate (1), and the upper ends of the barrel wall (3) and the partition plate (2) are welded and fixedly arranged to the top plate (13), and the partition plate is used to fix the barrel wall (3) and the top plate (13) to the upper ends of the barrel wall (3) and the partition plate (2). (2) The cavity between the bottom plate (1) and the top plate (13) is divided into a first drainage chamber (5), a second drainage chamber (6), a heating chamber (7), a third drainage chamber (8) and a fourth drainage chamber (9), wherein the heating chamber (7) is located between the second drainage chamber (6) and the third drainage chamber (8), and a short sewage cleaning pipe (4) is welded and fixed at the through holes at the bottom of the barrel wall (3) corresponding to the first drainage chamber (5), the second drainage chamber (6), the third drainage chamber (8) and the fourth drainage chamber (9); the characteristics are as follows: A circular weld anti-corrosion device (12) is fixedly arranged on the inner wall of the weld between the inner wall of the barrel wall (3) and the short sewage cleaning pipe (4); the circular weld anti-corrosion device (12) is composed of a nickel-based stainless steel mesh ring (121) and a nickel-based stainless steel pressure ring (122); the nickel-based stainless steel pressure ring (122) is fixedly arranged on the inner wall of the weld between the barrel wall (3) and the short sewage cleaning pipe (4) by spot welding; the nickel-based stainless steel mesh ring (121) is flatly arranged between the nickel-based stainless steel pressure ring (122) and the corresponding weld between the short sewage cleaning pipe (4); the nickel-based stainless steel mesh ring (121) covers the weld between the inner wall of the barrel wall (3) and the short sewage cleaning pipe (4); in the drainage chamber 1 (5), the drainage chamber 2 (6), and the drainage chamber 3 ( 8) and the fourth drainage chamber (9), a strip weld anti-corrosion device (10) is fixedly provided on the inner wall of the weld at the connection of the corresponding adjacent partitions (2), on the inner wall of the weld at the connection between the lower end of the partition (2) and the bottom plate (1), and on the inner wall of the weld at the connection between the partition (2) and the barrel wall (3), wherein the strip weld anti-corrosion device (10) is composed of a nickel-based stainless steel mesh strip (101) and a nickel-based stainless steel straight pressure strip (102), wherein the nickel-based stainless steel straight pressure strip (102) is fixedly provided on the inside of the weld corresponding to the partition (2) by spot welding, and the nickel-based stainless steel mesh strip (101) is flatly provided between the nickel-based stainless steel straight pressure strip (102) and the weld corresponding to the partition (2), and the nickel-based stainless steel mesh strip (101) is flatly provided between the nickel-based stainless steel straight pressure strip (102) and the weld corresponding to the partition (2). The strip (101) is bent along the central axis in the length direction so as to cover the corresponding weld of the partition (2) through the nickel-based stainless steel mesh strip (101); in the drainage chamber 1 (5), the drainage chamber 2 (6), the drainage chamber 3 (8) and the drainage chamber 4 (9), an arc-shaped weld anti-corrosion device (11) is fixedly provided on the inner wall of the weld at the connection between the bottom end of the barrel wall (3) and the bottom plate (1), and the arc-shaped weld anti-corrosion device (11) is composed of a nickel-based stainless steel mesh arc strip (111) and a nickel-based stainless steel arc strip (112), the nickel-based stainless steel arc strip (112) is fixedly provided at the outer edge of the bottom plate (1) by spot welding, and the nickel-based stainless steel mesh arc strip (111) is flatly provided on the nickel-based stainless steel arc strip. Between the corresponding welds of the shaped pressure strip (112) and the bottom plate (1), the nickel-based stainless steel mesh arc strip (111) is bent along the central axis in the length direction so as to cover the corresponding welds of the bottom plate (1) through the nickel-based stainless steel mesh arc strip (111); the partitions (2), the bottom plate (1) and the barrel wall (3) in the drainage chamber 1 (5), the drainage chamber 2 (6), the drainage chamber 3 (8) and the drainage chamber 4 (9) are coated with an inner wall anti-corrosion layer with a thickness of 0.7-1 mm, and the surfaces of the circular weld anti-corrosion device (12), the arc weld anti-corrosion device (11) and the strip weld anti-corrosion device (10) are coated with a weld anti-corrosion layer, and the thickness of the weld anti-corrosion layer is 2-3 times the thickness of the inner wall anti-corrosion layer.

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