Vacuum tube angle adjusting mechanism of hot rolling rotational flow well lift pump

Abstract

The utility model discloses a vacuum tube angle adjusting mechanism of a hot rolling rotational flow well lift pump, which is characterized in that a liquid inlet end on one side of a connecting straight pipe is detachably connected with a vacuum pipeline, and one side, far away from the vacuum pipeline, of the connecting straight pipe is fixedly welded on the side wall of a vacuum tank through a welding seat; according to the utility model, the original horizontal straight pipe connection mode is adjusted into the liquid inlet pipeline formed by jointly connecting the connecting straight pipe, the vacuum pipeline and the connecting bent pipe, and the liquid outlet direction of the liquid inlet pipeline is adjusted, so that the liquid outlet direction of the liquid inlet pipeline is adjusted; the liquid outlet direction is adjusted to be right opposite to the bottom of the vacuum tank from being right opposite to the side wall of the vacuum tank, a flowing medium is prevented from directly washing the tank wall of the vacuum tank, the problem that the tank body is washed and ground by iron sheets and sand impurities contained in waste water is effectively solved, and the phenomena that the inner wall of the vacuum tank is thinned and leaks after the vacuum tank is used for a long time are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot rolling production lines, in particular to an angle adjusting mechanism for a vacuum pipe of a lifting pump in a hot rolling swirl well. Background Technique

[0002] The swirl well of the hot rolling production line ensures the recycling of the rolling water of the production line and is a key equipment in the area. The lifting pump here needs to correspond to a vacuum pump to evacuate the air in the lifting pump, so that the lifting pump can quickly fill with water. During long-term use, the start and stop are frequent. The original vacuum pipe used for vacuum extraction is connected to the vacuum tank in an inserted manner, and the vacuum pipe is inserted into the tank. During the production operation, the side of the tank opposite to the welded joint of the vacuum pipe and the tank in the vacuum tank becomes thinner and even leaks. When a leak point appears, the pump must be stopped immediately for packaging and welding repair. This not only affects the normal operation of production, but also increases the workload of maintenance;

[0003] At present, due to the vertical inserted connection between the vacuum pipe and the tank, the liquid outlet direction of the vacuum pipe is aimed at the inner side wall of the tank. As a result, the pipe section inserted into the tank will eject a water column to the opposite side of the tank during the vacuum extraction and water filling process. And the production waste water contains impurities such as iron sheets and sand grains. The impurities will scour and grind the tank along with the water column. After long-term use, the inner wall of the tank will become thinner until leakage occurs. Content of the Utility Model

[0004] The utility model provides an angle adjusting mechanism for a vacuum pipe of a lifting pump in a hot rolling swirl well, which can effectively solve the problem proposed in the above background technique that due to the vertical inserted connection between the vacuum pipe and the tank, the liquid outlet direction of the vacuum pipe is aimed at the inner side wall of the tank, resulting in the pipe section inserted into the tank ejecting a water column to the opposite side of the tank during the vacuum extraction and water filling process. And the production waste water contains impurities such as iron sheets and sand grains. The impurities will scour and grind the tank along with the water column. After long-term use, the inner wall of the tank will become thinner until leakage occurs.

[0005] To achieve the above object, the utility model provides the following technical solution: An angle adjusting mechanism for a vacuum pipe of a lifting pump in a hot rolling swirl well, including a vacuum tank, one side end of the vacuum tank is connected with a connecting straight pipe, the liquid inlet end on one side of the connecting straight pipe is detachably connected with a vacuum pipe, and the liquid inlet end of the vacuum pipe is connected with a lifting pump. The side of the connecting straight pipe away from the vacuum pipe is fixedly welded to the side wall of the vacuum tank through a welding seat, and the liquid outlet end of the connecting straight pipe is fixedly connected with a connecting elbow. The bottom end of the connecting elbow is fixedly connected with a flange plate, and the bottom end of the connecting elbow is detachably connected with a buffer pipe through the flange plate, and a buffer structure is arranged inside the buffer pipe;

[0006] On one side edge where the connecting straight pipe and the vacuum pipe are connected, there are connecting discs fixedly connected, and fixing seats are connected at equal angles on the edge of the connecting disc. The fixing seats at the ends of the connecting straight pipe and the vacuum pipe are fixedly connected by fixing bolts. An extrusion cone groove is formed at the edge of the connecting disc at the end of the connecting straight pipe, and an annular fitting block is connected at the edge of the connecting disc at the end of the vacuum pipe corresponding to the extrusion cone groove.

[0007] Preferably, the connecting straight pipe, the vacuum pipe and the connecting elbow are all stainless steel pipes, and the liquid outlet direction of the connecting elbow is directly opposite to the bottom of the vacuum tank.

[0008] Preferably, the cross-sectional shapes of the extrusion cone groove and the annular fitting block are both conical. The annular fitting block is a rubber block, and the annular fitting block is fitted and connected in the extrusion cone groove by extrusion.

[0009] Preferably, the buffer structure inside the buffer pipe includes connecting springs. Four groups of connecting springs are connected at equal angles at the inner end of the buffer pipe. The end of the connecting spring is fixedly connected with an annular buffer block, and a through groove is formed in the middle of the inner side of the annular buffer block, and a wear-resistant pad is arranged on the top surface of the annular buffer block;

[0010] A limiting guide rail is arranged at the inner side edge of the buffer pipe. A guide groove is formed at the edge of the annular buffer block corresponding to the limiting guide rail, and a limiting ring seat is connected at the position of the inner side of the buffer pipe at the end of the limiting guide rail.

[0011] Preferably, the annular buffer block fits and slides along the inner wall of the buffer pipe, and the annular buffer block slides along the limiting guide rail through the guide groove at its edge.

[0012] Preferably, the cross-section of the through groove is inverted conical, and the top of the buffer pipe is detachably connected with the flange through the mounting disc.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use:

[0014] 1. By adjusting the original horizontal straight pipe connection method to an inlet liquid pipeline jointly composed of a connecting straight pipe, a vacuum pipe and a connecting elbow, and by adjusting the liquid outlet direction of the inlet liquid pipeline, the liquid outlet direction is adjusted from being directly opposite to the side wall of the vacuum tank to being directly opposite to the bottom of the vacuum tank, avoiding the direct scouring of the flowing medium on the tank wall of the vacuum tank, effectively solving the problem that the wastewater containing iron sheets and sand particles scours and grinds the tank body, and preventing the inner wall of the vacuum tank from becoming thinner and leaking after long-term use.

[0015] 2. By respectively arranging a connecting disc, a fixing seat and fixing bolts at the end parts connecting the straight pipe and the vacuum pipe, it is convenient to quickly align and connect the straight pipe and the vacuum pipe, ensuring the convenience of connecting the straight pipe and the vacuum pipe. At the same time, it is also convenient to disassemble and maintain the straight pipe and the vacuum pipe later. When the straight pipe and the vacuum pipe are connected, through the tight fitting and clamping action between the annular fitting block and the extrusion cone groove, the connection part between them is effectively extruded and sealed, ensuring that there will be no liquid leakage or pressure leakage at the connection part during infusion, and improving the stability of infusion.

[0016] 3. Through the connecting spring, annular buffer block, through groove, wear-resistant pad, limit guide rail, guide groove and limit ring seat inside the buffer pipe, when the fluid medium enters the vacuum tank through the connecting elbow, the impact pressure of the fluid medium impacts the annular buffer block and the wear-resistant pad, driving the connecting spring to stretch, so as to realize buffer pressure relief, further reducing the erosion of the fluid medium on the inside of the vacuum tank, making the fluid medium flow into the vacuum tank smoothly and stably. And the cooperation of the limit guide rail, guide groove and limit ring seat can limit the moving path of the annular buffer block, ensuring that the annular buffer block drives the connecting spring to stretch and relieve pressure stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

[0018] In the drawings:

[0019] Figure 1 is the structural schematic diagram of the present invention;

[0020] Figure 2 is the connection structural schematic diagram of the vacuum pipe of the present invention;

[0021] Figure 3 is the connection structural schematic diagram of the buffer pipe of the present invention;

[0022] Figure 4 is the structural schematic diagram of the annular fitting block of the present invention;

[0023] Figure 5 is the structural schematic diagram of the annular buffer block of the present invention;

[0024] Reference numerals in the figure: 1, vacuum tank; 2, connecting straight pipe; 3, vacuum pipeline; 4, lift pump; 5, welding seat; 6, connecting disc; 7, fixed seat; 8, fixing bolt; 9, extrusion cone groove; 10, annular fitting block; 11, connecting elbow; 12, flange; 13, buffer pipe; 14, connecting spring; 15, annular buffer block; 16, through groove; 17, wear-resistant pad; 18, limit guide rail; 19, guide groove; 20, limit ring seat. Detailed implementation manner

[0025] The following is a description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0026] Embodiment: As Figures 1-5 shown, the present invention provides a technical solution, a vacuum tube angle adjustment mechanism for a hot rolling swirl well lift pump, including a vacuum tank 1. A connecting straight pipe 2 is connected to one side end of the vacuum tank 1. The liquid inlet end on one side of the connecting straight pipe 2 is detachably connected to a vacuum pipeline 3, and the liquid inlet end of the vacuum pipeline 3 is connected to a lift pump 4. The side of the connecting straight pipe 2 away from the vacuum pipeline 3 is fixedly welded to the side wall of the vacuum tank 1 through a welding seat 5, and the liquid outlet end of the connecting straight pipe 2 is fixedly connected to a connecting elbow 11. The connecting straight pipe 2, the vacuum pipeline 3 and the connecting elbow 11 are all stainless steel pipes. The liquid outlet direction of the connecting elbow 11 faces the bottom of the vacuum tank 1. By adjusting the original horizontal straight pipe connection method to an inlet pipeline jointly composed of the connecting straight pipe 2, the vacuum pipeline 3 and the connecting elbow 11, and by adjusting the liquid outlet direction of the inlet pipeline, the liquid outlet direction is adjusted from facing the side wall of the vacuum tank 1 to facing the bottom of the vacuum tank 1. A flange 12 is fixedly connected to the bottom end of the connecting elbow 11, and the bottom end of the connecting elbow 11 is detachably connected to a buffer pipe 13 through the flange 12, and a buffer structure is arranged inside the buffer pipe 13;

[0027] On the side ends where the connecting straight pipe 2 and the vacuum pipeline 3 are connected, connecting discs 6 are fixedly connected, and fixed seats 7 are connected to the side ends of the connecting discs 6 at equal angles. The fixed seats 7 at the ends of the connecting straight pipe 2 and the vacuum pipeline 3 are fixedly connected through fixing bolts 8. An extrusion cone groove 9 is opened at the side end of the connecting disc 6 at the end of the connecting straight pipe 2. An annular fitting block 10 is connected to the side end of the connecting disc 6 at the end of the vacuum pipeline 3 corresponding to the extrusion cone groove 9. The cross-sectional shapes of the extrusion cone groove 9 and the annular fitting block 10 are both conical. The annular fitting block 10 is a rubber block, and the annular fitting block 10 is fitted and connected to the extrusion cone groove 9 in an extrusion manner. Through the tight fitting and clamping action between the annular fitting block 10 and the extrusion cone groove 9, the connection between them is effectively subjected to extrusion sealing treatment.

[0028] The buffer structure inside the buffer pipe 13 includes a connecting spring 14. Four groups of connecting springs 14 are equally-angularly connected to the inner end of the buffer pipe 13. The end of the connecting spring 14 is fixedly connected with an annular buffer block 15. A through groove 16 is opened in the middle of the inner side of the annular buffer block 15. The cross-section of the through groove 16 is an inverted cone. The top of the buffer pipe 13 is detachably connected to the flange 12 through a mounting plate, which facilitates the fluid medium to enter the through groove 16 inside the annular buffer block 15 and into the vacuum tank 1. The tapered through groove 16 can stably drive the annular buffer block 15 to move by the fluid medium. A wear-resistant pad 17 is provided on the top surface of the annular buffer block 15;

[0029] A limiting guide rail 18 is provided at the inner edge of the buffer pipe 13. A guide groove 19 is opened at the edge of the annular buffer block 15 corresponding to the limiting guide rail 18. The annular buffer block 15 fits and slides along the inner wall of the buffer pipe 13, and the annular buffer block 15 slides along the limiting guide rail 18 through the guide groove 19 at its edge, which facilitates the sliding of the annular buffer block 15 and restricts the movement path of the annular buffer block 15. A limiting ring seat 20 is connected to the inner side of the buffer pipe 13 at the end position of the limiting guide rail 18.

[0030] The working principle and usage process of the present utility model: In the actual application process of the vacuum tube angle adjustment mechanism of the hot rolling swirl well lift pump, first, a hole is opened on the side wall of the vacuum tank 1, the connecting straight pipe 2 is inserted into the hole, and the connecting straight pipe 2 and the connecting elbow 11 at its end are welded to the side wall of the vacuum tank 1 through the welding seat 5. The liquid outlet direction of the connecting elbow 11 is adjusted so that the liquid outlet direction of the connecting elbow 11 is aligned with the bottom of the vacuum tank 1;

[0031] After the connecting straight pipe 2 is welded and fixed, the connecting straight pipe 2 and the vacuum pipe 3 are connected. During the connection, through the connection disks 6, fixed seats 7 and fixing bolts 8 respectively arranged at the ends of the connecting straight pipe 2 and the vacuum pipe 3, the connecting straight pipe 2 and the vacuum pipe 3 are quickly aligned and connected, ensuring the convenience of connection between the connecting straight pipe 2 and the vacuum pipe 3. At the same time, it is also convenient to disassemble the connecting straight pipe 2 and the vacuum pipe 3 later, so as to facilitate the maintenance and replacement of the pipeline;

[0032] And when the connecting straight pipe 2 and the vacuum pipe 3 are connected at the ends, through the tight fitting and clamping action between the annular fitting block 10 and the extrusion cone groove 9, the connection between them is effectively squeezed and sealed, so as to ensure that there is no liquid leakage or pressure leakage at the connection during liquid infusion, improving the stability of liquid infusion;

[0033] After the stable connection between the straight pipe 2 and the vacuum pipe 3, connect the liquid inlet end of the vacuum pipe 3 to the liquid outlet end of the lifting pump 4. The lifting pump 4 transports the flowing medium from the vacuum pipe 3 to the connecting straight pipe 2 and the connecting elbow 11, and finally flows into the vacuum tank 1 through the buffer pipe 13. During the transportation of the flowing medium, by adjusting the original horizontal straight pipe connection method to the liquid inlet pipe composed of the connecting straight pipe 2, the vacuum pipe 3 and the connecting elbow 11, and by adjusting the liquid outlet direction of the liquid inlet pipe, the liquid outlet direction is adjusted from facing the side wall of the vacuum tank 1 to facing the bottom of the vacuum tank 1, avoiding the direct scouring of the flowing medium on the tank wall of the vacuum tank 1, and effectively solving the problem of the wastewater containing iron sheets and sand particle impurities scouring and grinding the tank body;

[0034] During the process of the flowing medium flowing into the interior of the vacuum tank 1 through the buffer pipe 13, the impact pressure of the fluid medium is used to impact the annular buffer block 15 and the wear-resistant pad 17, driving the connecting spring 14 to stretch, thereby realizing buffer pressure relief, further reducing the scouring of the fluid medium on the interior of the vacuum tank 1, enabling the fluid medium to flow into the vacuum tank 1 smoothly and stably, and cooperating with the limit guide rail 18 and the guide groove 19 to limit the movement path of the annular buffer block 15, ensuring that the annular buffer block 15 stably drives the connecting spring 14 to stretch and relieve pressure.

[0035] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vacuum tube angle adjustment mechanism for a hot rolling vortex well lifting pump, comprising a vacuum tank (1), characterized in that: A connecting straight pipe (2) is connected to one side end of the vacuum tank (1); a liquid inlet end of one side of the connecting straight pipe (2) is detachably connected to a vacuum pipe (3), and a lifting pump (4) is connected to the liquid inlet end of the vacuum pipe (3); a side of the connecting straight pipe (2) away from the vacuum pipe (3) is fixedly welded to the side wall of the vacuum tank (1) via a welding seat (5), and a liquid outlet end of the connecting straight pipe (2) is fixedly connected to a connecting elbow (11); a flange (12) is fixedly connected to the bottom end of the connecting elbow (11), and a buffer pipe (13) is detachably connected to the bottom end of the connecting elbow (11) via the flange (12), and a buffer structure is provided on the inner side of the buffer pipe (13); The side ends of the connecting straight pipe (2) and the vacuum pipe (3) are fixedly connected to a connecting plate (6), and the side ends of the connecting plate (6) are connected to a fixing seat (7) at equal angles. The fixing seats (7) located at the ends of the connecting straight pipe (2) and the vacuum pipe (3) are fixedly connected via a fixing bolt (8). An extrusion cone groove (9) is provided at the side end of the connecting plate (6) located at the end of the connecting straight pipe (2), and an annular fitting block (10) is connected to the side end of the connecting plate (6) located at the end of the vacuum pipe (3) corresponding to the extrusion cone groove (9).

2. The vacuum tube angle adjustment mechanism of the hot rolling vortex well lifting pump according to claim 1 is characterized in that: The connecting straight pipe (2), the vacuum pipe (3) and the connecting elbow (11) are all stainless steel pipes, and the liquid outlet direction of the connecting elbow (11) faces the bottom of the vacuum tank (1).

3. The vacuum tube angle adjustment mechanism of the hot rolling vortex well lifting pump according to claim 1 is characterized in that: The cross-sectional shapes of the extrusion cone groove (9) and the annular fitting block (10) are both conical, the annular fitting block (10) is a rubber block, and the annular fitting block (10) is fitted and connected in the extrusion cone groove (9) in an extrusion manner.

4. The vacuum tube angle adjustment mechanism of the hot rolling vortex well lifting pump according to claim 1 is characterized in that: The buffer structure inside the buffer tube (13) comprises a connecting spring (14), the inner end of the buffer tube (13) is connected with four groups of connecting springs (14) at equal angles, the end of the connecting spring (14) is fixedly connected with an annular buffer block (15), a through groove (16) is provided in the middle of the inner side of the annular buffer block (15), and a wear-resistant pad (17) is provided on the top surface of the annular buffer block (15); A limiting guide rail (18) is arranged at the inner side end of the buffer tube (13), a guide groove (19) is provided at the edge of the annular buffer block (15) corresponding to the limiting guide rail (18), and a limiting ring seat (20) is connected to the inner side of the buffer tube (13) at the end position of the limiting guide rail (18).

5. The vacuum tube angle adjustment mechanism of the hot rolling vortex well lifting pump according to claim 4 is characterized in that: The annular buffer block (15) fits and slides along the inner wall of the buffer tube (13), and the annular buffer block (15) is guided and slid along the limiting guide rail (18) through the guide groove (19) on its edge.

6. The vacuum tube angle adjustment mechanism of the hot rolling vortex well lifting pump according to claim 4 is characterized in that: The cross section of the through groove (16) is in the shape of an inverted cone, and the top of the buffer tube (13) is detachably connected to the flange plate (12) via a mounting plate.

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