Fixed siphon auxiliary device

Abstract

The utility model discloses an auxiliary device for a fixed siphon, relates to the technical field of papermaking, and aims to solve the problems of inconvenience in maintenance, long maintenance time, easiness in damage to a drying cylinder and low practicability when a hole is punched in an elbow of the fixed siphon provided by the background technology. A steel pipe wear-resisting layer is welded to the outer wall, close to the outer side, of an elbow of the fixed siphon, a connecting mechanism is arranged on the fixed siphon, and the connecting mechanism comprises a connecting plate, a first connecting block connected to the outer wall of one end of the connecting plate through a bolt and a second connecting block connected to the outer wall of one end of the connecting plate through a bolt. A limiting assembly is arranged on the outer wall, close to the elbow of the fixed siphon, of the connecting plate and comprises a screw and a limiting block. According to the utility model, the elbow of the fixed siphon can be reinforced and buffered, the perforation speed of the elbow is reduced, the maintenance time is shortened, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to a fixed siphon auxiliary device. Background Art

[0002] Papermaking enterprises generally use drying cylinders with a diameter of about φ1.2 to φ5 meters to dry wet paper webs. Saturated steam with a pressure of 5 to 8 kg is passed through the drying cylinder, and the condensed water formed by the condensation of the steam is discharged from the drying cylinder through the siphon of the rotating steam head.

[0003] Sometimes, due to the need to increase production and speed up the process, the steam pressure is too high, and the saturated steam is discharged from the siphon before it has time to condense. The siphon is under the action of this kind of steam for a long time, especially the inner wall of the outer side of the siphon elbow is easily perforated and leaked by steam cavitation, thus losing the siphon effect, resulting in poor discharge of condensed water. The condensed water that continues to accumulate in the drying cylinder hinders the heat transfer of the steam medium, resulting in a significant increase in the steam consumption cost per ton of paper, seriously affecting the drying temperature rise curve of the paper machine, causing paper web warping and high electrical tripping of the drying section transmission load, overheating and burning of electrical components such as IGBT due to excessive current, speed fluctuations, damage to the drying cylinder transmission gears and bearings, and couplings, and other serious faults and accidents. At the same time, when perforation and leakage occur at the siphon elbow, the siphon needs to be replaced as a whole.

[0004] In order to solve the problems in the prior art that when a fixed siphon pipe elbow is perforated, it is inconvenient to repair, the repair time is long, the drying cylinder is easily damaged, and the practicality is low, a fixed siphon pipe auxiliary device is proposed. Utility Model Content

[0005] The utility model provides a fixed siphon tube auxiliary device, which solves the problems of inconvenience in repairing and long repair time when perforation occurs at the elbow of the fixed siphon tube in the reference document, easy damage to the drying cylinder and low practicality.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fixed siphon tube auxiliary device comprises a fixed siphon tube, a steel pipe wear-resistant layer is welded on the outer wall of the fixed siphon tube elbow near the outer side, the fixed siphon tube is provided with a connecting mechanism, the connecting mechanism comprises a connecting plate, a first connecting block connected to the outer wall of one end of the connecting plate by bolts, and a second connecting block connected to the outer wall of one end of the connecting plate by bolts, a limiting assembly is provided on the outer wall of the connecting plate near the fixed siphon tube elbow, the limiting assembly comprises a screw that penetrates and is screwed on the outer wall of the connecting plate and a limiting block abutting on the inner outer wall of the fixed siphon tube elbow, an extrusion assembly is provided on the outer wall of the steel pipe wear-resistant layer, the extrusion assembly comprises an extrusion block abutting on the outer wall of the steel pipe wear-resistant layer and a push rod with fixed planes on both outer walls, and fixing assemblies are provided on the top and bottom outer walls of the connecting plate, and the fixing assembly comprises a fixing seat fixedly arranged on the outer wall of the connecting plate and a fixing cover connected to the outer wall of the fixing seat by bolts.

[0008] Preferably, outer walls at both ends of the connecting plate are respectively abutted against outer walls of the fixed siphon pipe, and the first connecting block and the second connecting block are respectively abutted against outer walls of the fixed siphon pipe.

[0009] Preferably, a first mounting block is connected to the outer wall of one end of the screw rod via a bearing, and the first mounting block is fixedly arranged on the outer wall of the limiting block.

[0010] Through the above scheme, the connecting plate is fixed to the outer wall of the fixed siphon tube by the first connecting block and the second connecting block, and then the screw is rotated, the screw drives the first mounting block and the limit block to move and contact with the fixed siphon tube, thereby fixing and limiting the connecting plate.

[0011] Preferably, two second mounting blocks are fixedly provided on the outer wall of one side of the extrusion block, and one end of two push rods are respectively screwed on the outer walls of the two second mounting blocks, and a limiting plate is welded on the outer wall of one end of the two push rods.

[0012] Preferably, a semicircular mounting groove is provided on the outer wall of the fixing seat, and a fixing groove is provided on the outer wall of the fixing cover, and the push rod is slidably installed in the mounting groove and the fixing groove.

[0013] Preferably, fastening bolts are threadedly connected to the outer walls of the two fixing covers, and the two fastening bolts are respectively fastened to the two push rods.

[0014] Through the above scheme, by moving the two push rods, the two push rods drive the extrusion block to move, so that the extrusion block contacts the wear-resistant layer of the steel pipe and squeezes the wear-resistant layer of the steel pipe, so that the wear-resistant layer of the steel pipe is tightly fitted on the outer wall of the fixed siphon pipe elbow, and then the wear-resistant layer of the steel pipe is welded to the outer wall of the fixed siphon pipe elbow.

[0015] The beneficial effects of the utility model are:

[0016] The first connecting block and the second connecting block fix the connecting plate on the outer wall of the fixed siphon pipe, and then the screw is rotated, and the screw drives the first mounting block and the limit block to move and contact with the fixed siphon pipe, thereby fixing and limiting the connecting plate, and moving the two push rods, and the two push rods drive the extrusion block to move, so that the extrusion block contacts and squeezes the wear-resistant layer of the steel pipe, so that the wear-resistant layer of the steel pipe fits tightly on the outer wall of the fixed siphon pipe elbow, and then the wear-resistant layer of the steel pipe is welded to the outer wall of the fixed siphon pipe elbow, which can strengthen and buffer the elbow of the fixed siphon pipe, reduce the perforation speed at the elbow, and at the same time reduce the maintenance time and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main stereoscopic structure of a fixed siphon tube auxiliary device proposed by the utility model.

[0018] Figure 2 This is a schematic diagram of the main three-dimensional structure of a connection mechanism of a fixed siphon tube auxiliary device proposed by the utility model.

[0019] Figure 3 The utility model is a schematic diagram of a side-view stereoscopic structure of a connection mechanism of a fixed siphon tube auxiliary device.

[0020] Figure 4 This is a schematic diagram of the main three-dimensional structure of a limiting component of a fixed siphon tube auxiliary device proposed by the utility model.

[0021] Figure 5 This is a schematic diagram of the main three-dimensional structure of an extrusion component of a fixed siphon tube auxiliary device proposed by the utility model.

[0022] Figure 6 This is a schematic diagram of the main three-dimensional structure of a fixed component of a fixed siphon tube auxiliary device proposed by the utility model.

[0023] In the figure: 1. fixed siphon; 2. wear-resistant layer of steel pipe; 3. connecting mechanism; 301. connecting plate; 302. first connecting block; 303. second connecting block; 4. limiting assembly; 401. screw; 402. first mounting block; 403. limiting block; 5. extrusion assembly; 501. extrusion block; 502. second mounting block; 503. push rod; 504. limiting plate; 6. fixing assembly; 601. fixing seat; 602. fixing cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1, reference Figure 1-4 A fixed siphon auxiliary device comprises a fixed siphon 1, a steel pipe wear-resistant layer 2 is welded on the outer wall of the fixed siphon 1 at the elbow, the cross-sectional covering angle of the steel pipe wear-resistant layer 2 is 180°, the arc angle of the elbow is 116.4° (consistent with the elbow angle of the fixed siphon 1), and the thickness is 8 mm. A connecting mechanism 3 is provided on the fixed siphon 1, and the connecting mechanism 3 comprises a connecting plate 301, a first connecting block 302 connected to the outer wall of one end of the connecting plate 301 by bolts, and a second connecting block 303 connected to the outer wall of one end of the connecting plate 301 by bolts. The outer walls at both ends of the connecting plate 301 are respectively abutted against the outer wall of the fixed siphon pipe 1, the first connecting block 302 and the second connecting block 303 are respectively abutted against the outer wall of the fixed siphon pipe 1, and a limiting component 4 is provided on the outer wall of the connecting plate 301 near the elbow of the fixed siphon pipe 1. The limiting component 4 includes a screw 401 that penetrates and is screwed on the outer wall of the connecting plate 301 and a limiting block 403 that abuts against the inner outer wall of the elbow of the fixed siphon pipe 1. The outer wall of one end of the screw 401 is connected with a first mounting block 402 through a bearing, and the first mounting block 402 is fixed on the outer wall of the limiting block 403.

[0026] Example 2, reference Figure 5-6 A fixed siphon auxiliary device also includes an extrusion assembly 5, which includes an extrusion block 501 abutting against the outer wall of the wear-resistant layer 2 of the steel pipe and a push rod 503 with fixed planes on both outer walls. Two second mounting blocks 502 are fixed on the outer wall of one side of the extrusion block 501. One end of the two push rods 503 is respectively screwed to the outer walls of the two second mounting blocks 502. A limiting plate 504 is welded on the outer wall of one end of the two push rods 503. The top and bottom outer walls of the connecting plate 301 are A fixing assembly 6 is provided on each of them, and the fixing assembly 6 includes a fixing seat 601 fixed on the outer wall of the connecting plate 301 and a fixing cover 602 connected to the outer wall of the fixing seat 601 by bolts. A semicircular mounting groove is provided on the outer wall of the fixing seat 601, and a fixing groove is provided on the outer wall of the fixing cover 602. The push rod 503 is slidably installed in the mounting groove and the fixing groove. Fastening bolts are screwed on the outer walls of the two fixing covers 602, and the two fastening bolts respectively form a fastening fit with the two push rods 503.

[0027] Working principle: The first connecting block 301 and the second connecting block 302 fix the connecting plate 301 on the outer wall of the fixed siphon pipe 1, and then rotate the screw 401, the screw 401 drives the first mounting block 402 and the limit block 403 to move and contact the fixed siphon pipe 1, thereby fixing and limiting the connecting plate 301, moving the two push rods 503, the two push rods 503 drive the extrusion block 501 to move, so that the extrusion block 501 contacts and squeezes the wear-resistant layer 2 of the steel pipe, so that the wear-resistant layer 2 of the steel pipe fits tightly to the outside of the elbow of the fixed siphon pipe 1 The outer wall of the side is then welded to the outer wall of the fixed siphon pipe 1 at the elbow. After the steel pipe wear-resistant layer 2 is used to reinforce the weak point of the elbow of the fixed siphon pipe 1 and optimize the design, it will not affect the installation of the siphon pipe and the normal operation of the paper machine at all, and can effectively extend the service life of the fixed siphon pipe 1. The theoretical design life can be extended by about 4 times to about 2000 to 2200 days. In addition, the wear-resistant layer of the siphon pipe that has expired for a long time can be replaced, and the worn original welded wear-resistant layer can be re-cut off and then a new wear-resistant layer can be welded. It can be reused, and the welding is quick and convenient.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixed siphon auxiliary device, comprising a fixed siphon (1), characterized in that: A steel pipe wear-resistant layer (2) is welded on the outer wall of the fixed siphon pipe (1) at the outer side of the elbow; The fixed siphon tube (1) is provided with a connecting mechanism (3), the connecting mechanism (3) comprising a connecting plate (301), a first connecting block (302) connected to the outer wall of one end of the connecting plate (301) by bolts, and a second connecting block (303) connected to the outer wall of one end of the connecting plate (301) by bolts; A limiting assembly (4) is provided on the outer wall of the connecting plate (301) near the elbow of the fixed siphon pipe (1), and the limiting assembly (4) comprises a screw rod (401) penetrating through and screwed to the outer wall of the connecting plate (301) and a limiting block (403) abutting against the inner outer wall of the elbow of the fixed siphon pipe (1); An extrusion assembly (5) is provided on the outer wall of the steel pipe wear-resistant layer (2), and the extrusion assembly (5) comprises an extrusion block (501) abutting against the outer wall of the steel pipe wear-resistant layer (2) and a push rod (503) with fixed planes formed on both outer walls; A fixing assembly (6) is provided on the top and bottom outer walls of the connecting plate (301), and the fixing assembly (6) comprises a fixing seat (601) fixed on the outer wall of the connecting plate (301) and a fixing cover (602) connected to the outer wall of the fixing seat (601) by bolts.

2. A fixed siphon auxiliary device according to claim 1, characterized in that: The outer walls at both ends of the connecting plate (301) are respectively abutted against the outer wall of the fixed siphon tube (1), and the first connecting block (302) and the second connecting block (303) are respectively abutted against the outer wall of the fixed siphon tube (1).

3. A fixed siphon auxiliary device according to claim 1, characterized in that: A first mounting block (402) is connected to the outer wall of one end of the screw rod (401) via a bearing, and the first mounting block (402) is fixedly mounted on the outer wall of the limiting block (403).

4. A fixed siphon auxiliary device according to claim 1, characterized in that: Two second mounting blocks (502) are fixedly provided on the outer wall of one side of the extrusion block (501), and one end of two push rods (503) are respectively screwed on the outer walls of the two second mounting blocks (502), and a limiting plate (504) is welded on the outer wall of one end of the two push rods (503).

5. A fixed siphon auxiliary device according to claim 1, characterized in that: A semicircular mounting groove is formed on the outer wall of the fixing seat (601), and a fixing groove is formed on the outer wall of the fixing cover (602), and the push rod (503) is slidably mounted in the mounting groove and the fixing groove.

6. A fixed siphon auxiliary device according to claim 1, characterized in that: The outer walls of the two fixing covers (602) are both threaded with fastening bolts, and the two fastening bolts are respectively fastened to the two push rods (503) to form a fastening fit.

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